Thorac Cardiovasc Surg 2015; 63(02): 97-112
DOI: 10.1055/s-0034-1370760
Review
Georg Thieme Verlag KG Stuttgart · New York

TEVAR for Symptomatic Stanford B Dissection: A Systematic Review of 30-Day Mortality and Morbidity

Michael Ramdass
1   Department of Clinical Surgical Sciences, University of the West Indies, Port of Spain General Hospital, Port of Spain, Trinidad and Tobago
› Institutsangaben
Weitere Informationen

Address for correspondence

Michael Ramdass, FRCS, FACS
Department of Clinical Surgical Sciences, University of the West Indies, Port of Spain General Hospital
Charlotte Street, Port of Spain West Indies
Trinidad and Tobago   

Publikationsverlauf

11. August 2013

18. Dezember 2013

Publikationsdatum:
21. April 2014 (online)

 

Abstract

Background The aim of this study was to determine morbidity and 30-day mortality rates of thoracic endovascular aortic repair (TEVAR) for Stanford B dissection over a 16-year period and determine if these rates have improved with better stent-graft technology and surgical technique.

Methods Electronic databases were searched in all languages and a systematic review conducted. A comparison of the early (1998–2007 = 787 patients) and later (2007–2013 = 787 patients) halves of the patient population was done. Studies were chosen based on availability of details regarding morbidity and mortality. Ambiguous studies were excluded.

Results A total of 69 suitable studies published between 1998 and 2013 (1,574 patients) were examined including 1 randomized control trial, 55 retrospective studies, 3 prospective, 1 mixed, and 9 case reports. Overall mortality and morbidity rates for TEVAR was 8.07% (n = 127) and 30.8% (n = 485), respectively. The stent-graft–related death rate was 6.20% (97 cases excluding medically related deaths). The endoleak rate was 5.9% of which most were type I. Major complications include stroke (2.7%), paraplegia (1.9%), partial thrombosis of false lumen (2.5%), retrograde type A dissection (3.1%), visceral malperfusion (2.0%), conversion to open intervention (1.9%), and secondary intervention (4.1%). The stent-graft–related mortality rate increased in the 2007 to 2013 group compared with the 1998 to 2007 group (56.2 vs. 24% of patients who died; p < 0.05). There was also an increase in the overall morbidity rates from 25% (1998–2007) to 36.6% (2007–2013) but did not reach statistical significance p > 0.05.

Conclusion Mortality and morbidity rates for TEVAR seemed to have increased over the past 16 years despite improved technology and surgical technique. This may be explained by the increasing liberal use of TEVAR intervention and quite possibly better reporting. The current data are highly heterogenous making it difficult for solid conclusions to be drawn. The only way forward is through better data registries and well-designed clinical trials.


#

Introduction

The first endoluminal procedure was conducted by Dotter and Judkins in 1964[1] and progressed slowly up to 1991 when Parodi et al[2] made significant advancements in the treatment of abdominal aortic aneurysms. Techniques and technology evolved over the years and spread into the various branches of vascular surgery. Up to 2013, major studies on type B dissection included meta-analyses by Eggebrecht et al[3] in 2006, Walsh et al[4] in 2008, Xiong et al in 2009,[5] and Zhang et al in 2012,[6] as well as the INSTEAD[7] [8] and IRAD[9] trials by Nienaber et al and Fattori et al, respectively. This article is intended to be a systematic review of available data for 16 years from 1998 to 2013 with regard to morbidity and mortality with a comparison of the first and later halves of the patient population to determine if rates have improved with the advent of improved technology and surgical techniques.


#

Methodology

A systematic review was conducted using separate search strategies in the PubMed, MeSH thesaurus, and Cochrane databases. The following registries were included: EUROSTAR Registry, United Kingdom Thoracic Endograft Registry, and International Registry of Acute Aortic Dissection. The PRISMA guidelines were followed as recommended for systematic review reporting.

PICOS Statement

The study was conducted focusing on the 30-day mortality and morbidity of symptomatic type B acute and/or chronic aortic dissections (S-B-AD). Suitable studies for 16 years from 1998 to 2013 were selected for analysis. The objectives of the study were to determine overall rates for the 16-year period and to perform a comparison of the first (787 patients from 1998 to 2007) and later (787 patients from 2007 to 2013) halves of the patient population to determine if rates have improved with the advent of improved technology and surgical techniques.


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Protocol and Registration

No review protocol was created online.


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Eligibility Criteria

Suitable studies were chosen based on the accuracy of documentation of 30-day mortality and morbidity specifically for the S-B-AD. Once the information was clearly documented, the study was included.


#

Information Sources

A systematic review was conducted using separate search strategies in the following databases: PubMed, MeSH thesaurus, and Cochrane databases. The Embase, Ingenta, Zetoc, and Ovid databases were also used as well as the following registries were included: EUROSTAR Registry, United Kingdom Thoracic Endograft Registry, and International Registry of Acute Aortic Dissection.


#

Search

A standard PubMed search using the “Advanced Search Option” for matching terms was first used to obtain the meta-analyses, review articles, and case series on the treatment of S-B-AD, whether acute or chronic as well as involving consequent aneurysm formation or not.

The search topics included the following:

  1. “Type B dissection and descending thoracic dissection”

  2. “Medical treatment”

  3. “Open surgery”

  4. “Endovascular/stent repair”

    Combinations were done using the “AND” option. This obtained the following results:

    • “Type B dissection and descending thoracic dissection” yielded 340 articles.

    • The 340 articles were then combined using the “AND” option in the search box yielding 108 for medical treatment, 69 for open surgery, and 44 for endovascular/stent repair. There were 51 suitable articles selected for analysis.

Another search strategy was employed by searching through a MeSH search in PubMed combining “Aortic Aneurysm, Thoracic [MeSH]” AND “Stents [MeSH]” AND “Aneurysm, dissecting [MeSH].” This yielded 441 articles from which the search was confined to clinical trials (three selected), review articles (two selected), randomized controlled trials (one selected), and meta-analyses (six selected).

The databases from the Cochrane library, Embase, Ingenta, Zetoc, and Ovid did not yield any new relevant information; however, hand-searching relevant references obtained via a standard PubMed search for the topic yielded a further 14 relevant articles.

Cumulatively, 69 suitable studies were selected. The six meta-analyses and two reviews were excluded to avoid duplicating data ([Fig. 1]). A total of 1,574 patients were treated for S-B-AD. There were no ethical considerations. Results were entered into SPSS 20 (IBM SPSS 20 STATISTIC, United States) and analyzed using Pearson chi-square testing.

Zoom Image
Fig. 1 PRISMA flow diagram showing search strategy.

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Results

A total of 69 articles with 1,574 patients were selected for the 16-year period, 1998 to 2013. Most included a mix of various types of descending thoracic aortic pathology including acute rupture, chronic aneurysmal disease, Stanford type A and B dissections, and traumatic disruption. Selected articles contained a detailed breakdown of the results, patient demographics, and details of complications associated with S-B-AD ([Table 1]).

Table 1

Summary of selected articles on TEVAR in S-B-AD

Author

Year published/country

Duration/type

Clinical inclusion criteria

Indications

Device

Age

N

30-d mortality

Cause for mortality

Morbidity

Hanna et al[18]

2014/United States

2005–2012/retrospective, single institution

Acute complicated type B aortic dissection

Rupture (10)

Malperfusion (24)

Refractory pain (17)

(one patient had malperfusion and rupture)

Gore TAG

Zenith TX2

Talent

Valiant

59 (53.3–70.0)

50

0

Adjunctive procedures for malperfusion ×10

Stroke ×1

Paraplegia ×1

Renal failure ×4

Type I endoleak ×13 with 17 procedures

Type II endoleak ×2

Persistent FL ×4

Retrograde type A dissection ×1

Wilkinson et al[19]

2013/United States

1995–2012/retrospective, single institution

Acute type B dissection

Rupture (12)

Rapid expansion (21)

Uncontrolled pain (10)

Aortic size > 5 cm (18)

Refractory hypertension (1)

Malperfusion (7)

Multiple indications (18)

Gore TAG

Talent

Valiant

Cook TX2

70.1 ± 12.3

49

5

Rupture ×2

Impending rupture with emergent open conversion and stroke ×1

Acute on chronic aneurysmal dissection ×1

Renal, visceral, and lower limb malperfusion ×1

Stroke ×3

Renal failure ×2

Paraplegia ×2

Minami et al[20]

2013/Japan

2000–2012/retrospective, single institution

Acute type B dissection

Acute dissection

NS

71 ± 15

9

0

Stroke ×1

Lombardi et al[21]

2012/United States, Europe, and Australia

2007–2009/prospective, nonrandomized, multicenter

Acute (24) (< 14 d) and subacute (6) (15–30 d) dissection

Malperfusion, periaortic effusion/hematoma, impending rupture, resistant hypertension, persistent pain, aortic growth

Zenith TX

58 (35–83)

30

2

Visceral malperfusion and right common iliac artery (day 11)

Renal artery malperfusion (day 20 at home)

Stroke intraoperatively ×1

Retrograde type A aortic dissection ×2 (31, 365 d)

Secondary intervention ×7

Heijmen et al[22]

2012/The Netherlands

2009–2010/mixture of retrospective and prospective at 15 sites in Europe

Acute dissection

Pain, dissection, aortic wall hematoma

Valiant Captivia

58.4 ± 13.5 (32–83)

19

4

3 device-related multiorgan failure (day 20), retrograde dissection day 22), rupture (day 14), rupture (day 1)

Paraplegia ×1

Stroke ×4

Retrograde type A dissection ×2

Type I endoleak ×2

Type II endoleak ×3

Respiratory ×2

Cardiac ×1

Bowel ischemia ×1

Vessel rupture ×1

Mitchell et al[23]

2011/United States

2007–2010/retrospective

Acute complicated type B dissection

Ruptured descending thoracic aneurysm

Traumatic aortic disruption

Visceral malperfusion

Gore TAG (Excluder)

Mean = 67

(50–77)

4

1

Postop pneumonia and respiratory failure after successful TEVAR

Stroke ×1

Paraplegia (spinal ischemia) ×1

Renal failure ×1

Fioranelli et al[24]

2011/Brazil

2004–2007/retrospective, case series

Complicated type B aortic dissections

Acute phase = 10 (< 14 d)

Chronic phase = 13(> 14 d)

Rupture (6)

Persistent thoracic pain (1)

Thoracic pain + dilation (1)

Lower limb ischemia (2)

Talent Valiant (11)

Gore TAG (7)

Zenith (4)

Endofit (1)

Acute phase = 56.3 ± 12.3

Chronic phase = 60.8 ± 10.8

23

3

Retrograde dissection ×1

Aorto-esophageal fistula ×1

Renal failure ×1

(all related to proximal endoleak. One immediate and two massive hematoma in pleural space, died on days 3 and 12)

Type I endoleak ×4 (2 acute/2 chronic)

Paraplegia = 0

Note: 8 died after 30 d (3 aortoesophageal fistulas 2, 3, and 23 mo; 1 renal failure; 2 ischemic strokes; 1 AAA rupture; 1 ruptured false lumen)

Cambria et al[25]

2009/United States

2005–2007/prospective, nonrandomized

Complicated type B = 19

Ruptured degenerative aneurysm = 20

Traumatic aortic tear = 20

Renal (4)

Lower limb (5)

Malperfusion (1)

Gore TAG

Mean 58.9 ± 14.7

19

3

Aortic rupture ×2

Strokes ×2

Paraplegia ×3

Reintervention ×2

Conversion to open ×1

Type A dissection ×1

Stroke ×2 (1 death)

Type I endoleak ×2

Bleeding ×1

Further dissection < 30 d ×2

Adverse events ×14 (cardiac 3, pulmonary 5, renal 2, cerebrovascular 4, DVT/PE/coagulopathy 2, other 8

Nienaber et al[7]

2009/Germany, Italy, France

2003–2005/randomized controlled trial, multicenter

Chronic type B dissection

Chronic type B dissection

Talent

61.8 (61–73)

72

5

Postprocedural rupture of access vessel ×1, malperfusion ×1, type A dissection with tamponade ×1, ruptured thoracic aorta ×1, type I endoleak ×1

Retrograde type A dissection ×1

Ruptured iliac access vessel ×3

Paraplegia ×2

Major stroke ×1

Type I endoleak ×1

Patel et al[26]

2009/United States

1997–2008/retrospective, institutional review

Presentation within 14 d and type B dissection with malperfusion

Malperfusion on angiography

NS

65.8

69

12

Lower extremity ischemia ×4, renal/mesenteric ischemia ×8

Renal failure ×10

Stroke ×3

Paraplegia ×2

Kische et al[10]

2009/Germany, Bologna, Lille, Marseille, Nieuwegein, Rostock, Toulouse, and Vienna

1996–2004/retrospective, multicenter

Type B dissection (171)

Thoracoabdominal type A dissection (9)

Complicated type B aortic dissection

Talent

59.6 ± 13.0

171

9

Ruptured type B dissection ×1

Retrograde extension of type B dissection after TEVAR ×4

Conversion to open ×5

Type I endoleak ×6

Enlargement of false lumen ×2

Migration ×1

Modular disconnection ×1

Fatal rupture ×7

Procedural stroke ×7

Paraplegia ×5

Day and Buckenham[27]

2009/New Zealand

2001–2007/retrospective, multicenter

TEVAR for type B dissection, elective thoracic aneurysms, and traumatic injury

Type B dissection

NS

NS

39

7

Hemorrhage ×3

MI ×1

Cardiac arrest ×1

Stroke ×1

Renal failure ×1

Multiorgan failure ×2

Sepsis ×1

Aneurysm rupture ×1

Type A dissection ×1

Oesophageal necrosis ×1

NS

Porcu et al[28]

2009/France

2002/case report

TEVAR for acute type B dissection

Type B dissection

Talent

73

1

0

Aneurysmal dilatation secondary to giant-cell arteritis and reintervention ×2

Type I endoleak ×1

Chemelli-Steingruber et al[29]

2008/Austria

1996–2008/retrospective, institutional

Acute type B dissection

Type B dissection—symptomatic

NS

NS

38

6

Late aortic rupture ×6

Type I endoleak ×9

Retrograde type A dissection ×4

Conversion to open ×3

Secondary intervention ×2

Paraplegia ×0

Mastroroberto et al[30]

2008/Italy

2002–2007/retrospective, institutional

Acute type B dissection

Aortic ulceration (9)

Left pleural effusion (2)

Talent

NS

11

0

Paraplegia ×1 (30 d)

Endoleak ×0

Retrograde type A dissection ×0

Flecher et al[31]

2008/France

2007–2008/retrospective, institutional

Acute type B dissection < 14 d (7)

Chronic type B dissection > 14 d (28)

Persistent pain

Rupture

Visceral malperfusion

Lower limb ischemia

Abdominal pain

NS

NS

35

5

Retrograde type A dissection ×3 (died days 2, 22 other not stated)

Ruptured aorta ×2 (died days 2 and 10)

Retrograde type A aortic dissection ×3

Reintervention ×14, partial thrombosis of FL ×15

Absence of thrombosis ×4 ancillary procedures ×4

Apple et al[32]

2008/United States

2005–2007/retrospective, case series

Thoracic aortic aneurysmal disease

Contained rupture of a type B dissection

NS

NS

1

0

0

Khoynezhad et al[33]

2008/United States

1998–2005/retrospective, institutional

Symptomatic type B dissections, aneurysms of descending thoracic aorta, penetrating aortic ulcers, traumatic disruption (153 patients)

Acute complicated type B dissection (pain, uncontrolled hypertension, malperfusion, rupture, or enlargement > 5 mm/y) (25)

Chronic type B dissection (42)

Talent (145), AneurRx (Medtronic, Minneapolis, Minnesota, United States) (37), Gore TAG (2)

NS

67

7

Rupture

Retrograde Dissection

Medical (not clearly stated)

Retrograde aortic dissection ×1 (had immediate arch replacement)

Stroke ×3

Type I endoleak ×1

Dagenais et al[34]

2008/Canada

2002–2008/retrospective, case series

Acute type B aortic dissection

Intramural hematoma

Intractable pain

Valiant (Freeflo)

59.5 (40–83)

4

0

0

Boufi et al[35]

2008/France

2004–2006/retrospective

Complicated type B dissection

Type B dissection

NS

75.4 (30–94)

4

1

Paraplegia ×1 type I endoleak 3

Misfeld et al[36]

2008/Germany

1993–2006/retrospective

Type B dissection

Type B dissection

NS

55 ± 16 (25–80)

24

3

MI

Paraplegia ×2

Hager et al[37]

2008/United States

2008/case report

Chronic type B dissection

Type B dissection

Gore TAG

56

1

0

0

Neuhauser et al[38]

2008/Austria

1997–2007/retrospective

Type B dissection

Type B dissection

NS

NS

28

1

Open conversion

Conversion to open (retrograde type A dissection) ×4

Duebener et al[39]

2007/Germany

2000–2006/retrospective

Complicated acute type B dissection

Pain, rupture, rapid increase in aortic diameter, visceral malperfusion

Talent

Valiant

59.3 ± 6.3 (46–66)

13

2

Persistent visceral malperfusion

Retrograde type A dissection ×1

Conversion to open ×3

Acute renal failure ×1

Hemiplegia ×3

Stent dislocation ×1

Czerny et al[40]

2007/Austria

2005–2006/retrospective

Chronic type B dissection

Aneurysms

NS

63 (50–75)

6

0

Type I endoleak ×1

Schoder et al[41]

2007/Austria

2006/retrospective, single institution

Acute type B dissection

Rupture, contained rupture, visceral malperfusion, persistent pain, rapid increase in aortic diameter

Talent, Gore Excluder

57 (33–83)

24

3

Aortic rupture, cardiac, retrograde type A dissection, and cardiac tamponade

Paraplegia ×2

Retrograde type A dissection ×1

Lower Limb amputation ×1

Renal failure ×2

Small bowel and right hemicolectomy ×1

Sharif et al[42]

2007/UK

2007/case report

Acute type B dissection

Pain, uncontrolled hypertension

Gore TAG

57

1

0

0

Bingol et al[43]

2007/Turkey

2002–2005/retrospective, institutional

Mixture of thoracic aneurysms

Type B dissection

Talent, Gore Excluder

NS

3

0

0

Slovut et al[44]

2007/United States

2007/case report

Type B dissection

Pain and uncontrolled hypertension

Gore TAG

61

1

0

0

Song et al[45]

2006/United States

1999–2005/retrospective, institutional

Acute (25) and chronic (17) type B dissection

Chest pain (11), aneurysmal enlargement (11), uncontrolled hypertension, progression of dissection, rupture (5), visceral malperfusion, aortoenteric fistula

AneuRx (5)

Talent (37)

64 ± 14 (35–88)

42

0

Type I endoleak ×6

Secondary interventions ×18

Junctional leaks ×3

Continued perfusion of false lumen from distal reentry sites ×3

Conversion to open for type A retrograde dissection ×4

Kaya et al[46]

2006/The Netherlands

2002–2006/retrospective, institutional

Acute aneurysms and dissection

Pain, visceral malperfusion

Talent, Gore Excluder

NS

12

2

Visceral malperfusion ×1

Rupture ×1

Type II endoleak ×2

Stroke ×1

Xu et al[47]

2006/Beijing

2001–2005/retrospective, institutional

Acute type B aortic dissection

Pain, uncontrolled hypertension

Talent, Vasoflow (Vascore, Suzhou, China), Aegis (Microport, Inc., Shanghai, China), Griking (Grikin Advanced Materials, Inc., Beijing, China), Ankura (Lifetech Scientific Inc., Shenzhen, China)

NS

63 (59 treated within 2 wk

2

Retrograde type A aortic dissection ×1

Renal failure ×1

Retrograde type A dissection ×3

Stroke ×1

Renal failure ×2

Transient left arm ischemia ×1

Type I endoleak ×3

Type II endoleak ×1

Augustine et al[48]

2006/Germany

2005/case report

Type B aortic dissection and aneurysm

Pain, penetrating ulcer, and hypertension

NS

59

1

0

Overstenting LCCA and LSCA ×1

Holst et al[49]

2006/Denmark

2005/retrospective

Type B dissection

Type B dissection

NS

NS

3

0

0

Duda et al[50]

2006/Germany

1997–2000/prospective controlled

Type B dissection, ruptures, aneurysms

Type B dissection

Talent, Gore TAG

NS

5

0

Retrograde type A dissection ×1

Wheatley et al[51]

2006/United States

2000–2004/retrospective

Acute (22) and chronic (14) type B dissection

Type B dissection

Gore TAG

NS

36

3

Type I endoleak ×5

Wang and Li[52]

2005/China

2004/retrospective

Type B dissection

Type B dissection

Not stated

NS

16

0

Type I endoleak ×1

Conversion to open ×1

Dialetto et al[53]

2005/Italy

1999–2004/retrospective

Type B dissection

Type B dissection

Not stated

59.5 ± 11.5

28

3

NS

Medical problems ×3

Partial thrombosis ×7

Aneurysmal dilatation ×1

Sujimoto et al[54]

2004/Japan

2003/case report

Type B dissection

Type B dissection

Not stated

66

1

0

0

Joung et al[55]

2004/Korea

2003/case report

Type B dissection

Type B dissection

Not stated

54

1

0

Reintervention ×1

Bortone et al[56]

2004/Italy

1999–2003/retrospective

Complicated type B dissection (43), aneurysms, posttraumatic

Complicated type B dissection

Talent, Gore Excluder, Zenith (Cook), Endofit Thoracic Stent Graft (Le Maitre, Germany)

NS

43

3

Retrograde type A dissection ×3

Type II endoleak ×2

Paraplegia ×0

Retrograde type A dissection ×3

Leurs[11]

2004/UK

1997–2003/retrospective multicenter (EUROSTAR and UK Thoracic Endograft Registry)

Aneurysm or dissection

Type B dissection

Talent, Gore Excluder, Zenith, Endofit

NS

106 (type B dissection)

11

Rupture from type I endoleak in ×8

Type II endoleak ×1

Reintervention ×1

Paraplegia ×1

Stroke ×2

Iannelli et al[57]

2004/Italy

2001–2002/retrospective

Type B dissection

Type B dissection

NS

NS

8

0

Overstenting LSCA ×2

Overstenting celiac artery ×1

Postimplantation syndrome ×3

Hansen et al[58]

2004/United States

2001–2003/retrospective

Type B dissection (16 acute, 8 chronic)

Type B dissection

AneuRx, Talent, Gore Excluder

69 (43–86)

24

3

Retrograde type A dissection ×2 and ×1 ruptured endoleak

Retrograde type A dissection ×3

Type I endoleaks ×4

Aneurysmal dilatation ×3

Recurrent dissection ×1

Medical (cardiac and pulmonary) ×11

Renal failure ×2

Stroke ×1

Paraplegia ×0

Duebener et al[59]

2004/Germany

2001–2003/retrospective

Acute type B dissection

Rupture, hemothorax, visceral malperfusion, and refractory pain

Talent

59.2 (46–65)

10

2

Intimal tear ×1

Hemorrhagic shock (malperfusion) ×1

×3 open surgical (retrograde type A dissection, acute stent dislocation by fractured wires, and secondary leakage and late aneurysm formation)

Grabenwoger et al[60]

2003/Austria

1997–2002/retrospective

Complicated type B dissection

Pain

Uncontrolled hypertension

Talent, Gore Excluder

NS

11

0

Paraparesis ×1

Overstented left subclavian artery ×1

Lonn et al[61]

2003/Sweden

1999–2002/retrospective

Type B dissection (14 acute, 4 chronic)

Type B dissection

NS

NS

18

3

Medical (cardiac ×3)

Paraplegia ×1

Stroke ×4

Lambrechts et al[62]

2003/Belgium

2000–2002/retrospective

Type B dissection

Type B dissection

Talent, Gore Excluder, AneuRx

NS

11

0

Partial thrombosis ×1

Bell et al[63]

2003/London

1997–2002/retrospective

Thoracic endoluminal repairs

Type B dissection

NS

NS

5

0

Paraplegia ×1

Stroke ×1

Type I endoleak ×2

Orend et al[64]

2003/Germany

1995–2001/retrospective

Aneurysms, dissection, posttraumatic

Type B dissection

Talent, Gore Excluder

NS

14

1

Retrograde type A dissection. Four other deaths recorded after 30 d

Type I endoleak ×4

Conversion to open ×4

Retrograde type A dissection ×2

False lumen rupture ×1

Overstenting ×2

TIA ×1

Weber et al[65]

2003/Germany

2002/case report

Chronic type B dissection

Peripheral malperfusion

NS

71

1

0

0

Matravers et al[66]

2003/London

1999–2002/retrospective

Chronic type B dissection

Chronic type B dissection

NS

NS

9

1

Common iliac artery rupture ×1

Secondary intervention ×2

Stroke ×0

Shim et al[67]

2002/Korea

1998–2001/retrospective

Type B dissection

Persistent back or chest pain, progressive enlargement of false lumen

NS

55.9 ± 13.7 (32–82)

15

1

Medical cause

Procedural failure ×1

Device migration ×1

Conversion to open ×2

Retrograde type A dissection ×1

Herold et al[68]

2002/Germany

1999–2001/retrospective

Acute (6) and chronic (12) type B dissection

Type B dissection

Talent

68.6 ± 7 (58–84)

18

1

MI (day 6)

Reintervention ×3

Kato et al[69]

2002/Japan

1997–2002/retrospective

Acute (14) and chronic (14) type B dissection

Type B dissection

NS

NS

28

2

Visceral malperfusion ×1

Hemothorax ×1

Type I endoleak ×1

Aneurysmal dilatation ×1

Late rupture ×1 Respiratory failure ×1

Shimono et al[70]

2002/Japan

1999–2001/retrospective

Acute type B dissection

Type B dissection

NS

NS

37

1

Failed ×1

Totaro et al[71]

2002/Italy

1999–2001/retrospective

Type B dissection

Type B dissection

NS

NS

25

0

Retrograde type A dissection ×1

Palma et al[72]

2002/Brazil

1998–2001/retrospective

Type B dissection

Persistent pain, mediastinal hematoma, hemothorax

NS

NS

58

2

Medical ×2

Type I endoleak ×11

Conversion to open ×5

Criado et al[73]

2002/United States

1998–2002/retrospective

Type B dissection

Type B dissection

NS

NS

16

1

Iliac rupture –1

Medical ×8

Partial thrombosis ×4

Type I endoleak ×1

Bortone et al[74]

2001/Italy

1999–2000/retrospective

Type B dissection

Type B dissection

NS

NS

5

0

Redissection with visceral/leg ischemia ×1

Sailer et al[75]

2001/Austria

1997–2000/retrospective

Type B dissection

Type B dissection

NS

NS

7

0

Reintervention ×1

Won et al[76]

2001/Korea

1994–1999/retrospective

Type B dissection

Type B dissection

NS

NS

12

0

Failure ×2

Yamazaki et al[77]

2000/Japan

1999/case report

Type B dissection

Type B dissection

NS

56

1

0

0

Shimono et al[78]

2000/Japan

1998–2000/retrospective

Acute (8), subacute (4), and chronic (6) type B dissection

Type B dissection

NS

NS

18

0

Emboli ×4

Czermak et al[79]

2000/Austria

1996–2000/retrospective

Acute (5) and chronic (2) type B dissection

Type B dissection

Talent

67 (43- 80)

7

0

Retrograde type A dissection ×1

LSCA overstented ×3

Ruptured CFA ×1

Dissection of CFA ×1

Beregi et al[80]

2000/France

1997–1999/retrospective

Type B dissection

Type B dissection

NS

NS

12

4

Renal failure ×2

Nienaber et al[81]

1999/Germany

1997–2000/retrospective

Type B dissection

Type B dissection

NS

62 ± 11

12

0

Partial thrombosis of false lumen ×3

Dake and Kato[82]

1999/United States

1996–1998/retrospective

Type B dissection

Type B dissection

NS

NS

15

2

Acute rupture of false lumen ×2

Partial thrombosis ×4

da Fonseca et al[83]

1998/United States

1997/retrospective

Type B dissection

Type B dissection

NS

NS

4

0

0

Total

1,574

Overall mortality = 8.07%

Abbreviations: ARF, acute renal failure; DVT, deep venous thrombosis; FL, false lumen; LCCA, left common carotid artery; LSCA, left subclavian artery; MI, myocardial infarction; NS, not stated; PE, pulmonary embolism; S-B-AD, symptomatic Stanford type B aortic dissection; TEVAR, thoracic endovascular aortic repair.


Thoracic endovascular aortic repairs (TEVARs) were done in the following countries: 11 (16%) studies from China, Japan, and Korea in the Far East; 16 (23%) from the United States; and 38 (55%) from European region including Germany, Austria, France, United Kingdom, Switzerland, Norway, Sweden, Italy, Belgium, and Denmark and Turkey. There were two from Brazil and one from New Zealand and Canada each (6%).

The largest series were from Kische et al,[10] Leurs et al,[11] and Nienaber et al[7] with 171, 106, and 72 cases, respectively. The other studies contained small and intermediate sized populations and nine case reports were also included. Tests for heterogeneity in patient demographics in terms of age, ASA (American Society of Anaesthesiologists Physical Status Classification) grade, and comorbidities were not conducted because there was great variation in the way in which data were recorded.

The mean age range was 62 years with a range of 54 to 75, a median of 60, and mode of 59 with the age stated in only 36 articles (52%). Studies selected included the following according to year: 1998 = 1, 1999 = 2, 2000 = 4, 2001 = 3, 2002 = 7, 2003 = 7, 2004 = 7, 2005 = 2, 2006 = 7, 2007 = 6, 2008 = 10, 2009 = 6, 2010 = 0, 2011 = 2, 2012 = 2, and 2013 = 3.

In terms of device, the most commonly used devices were the Medtronic Talent (Medtronic, Minneapolis, Minnesota, United States) and Gore TAG Thoracic Endoprosthesis (Gore Medical, Flagstaff, Arizona, United States) devices in 30 studies (43%) followed by the Zenith Excluder (Cook Medical, Bloomington, Indiana, United States) and the Valiant (Medtronic, Minneapolis, Minnesota, United States) types. The device used was not stated in 36 studies.

Of 1,574 patients treated for Stanford B dissections, the overall 30-day mortality was 8.07% (n = 127) ([Table 1]). These were related to a variety of causes including procedure-related false aneurysm rupture, retrograde type A dissection, ruptured type I endoleak, persistent visceral and lower limb malperfusion, aorto-esophageal fistula, further type B dissection, conversion to open surgery, as well as ruptured access vessels. There were 24 (1.52%) medical-related death within 30 days. The total number of deaths directly related to stenting was 97 (6.20%) (excluding medical-related deaths) within 30 days of TEVAR ([Table 2]).

Table 2

Mortality associated with TEVAR in < 30 days[a] (see [Table 1])

Complication

44 studies (1998–2007)

(n = 787 patients)

25 studies (2007–2013)

(n = 787 patients)

Total (%)

(n = 121/127)

Retrograde type A dissection

8

9

17 (14%)

Persistent visceral and lower limb malperfusion

3

17

20 (16.5%)

Rupture of false lumen or type I endoleak or aortoesophageal fistula

17

30

47 (38.8%)

Aortoesophageal fistula

0

2

2 (1.7%)

Further type B dissection

0

2

2

Ruptured Iliac or access vessel

1

1

2

Open conversion

0

2

2

Device-related multiorgan failure

0

5

5 (4.1%)

Total stent-related mortality (medical causes excluded) (n = 121)

29/121 (24.0%)

68/121 (56.2%)

121 (95%) clearly documented out of 127 mortalities

Medical cause (cardiac or pulmonary, renal failure or stroke)

8

16

24 (12%)

Abbreviation: TEVAR, thoracic endovascular aortic repair.


a Rates calculated from available information of 121 out of 127 deaths.


Procedure-related morbidities included retrograde type A dissection (49), visceral malperfusion (32), lower limb ischemia (5), aorto-esophageal fistula (4), stroke (41), paraplegia/paraparesis (30), type I endoleak (82), type II endoleak (11), partial thrombosis of the false lumen (39), conversion to open surgery failed procedure (30), secondary interventions (65), renal failure (31), device migration/modular disconnection/junctional endoleaks (7), emboli (4), overstenting of the celiac artery (1), postimplantation syndrome (3), and failure (2). The overall morbidity rate for the patient population was 30.8% ([Table 3]).

Table 3

Morbidity associated with TEVAR

Complication

44 studies (1998–2007)

(n = 787 patients)

25 studies (2007–2013)

(n = 787 patients)

n = 1,574 (%)

Retrograde type A dissection

21

28

49 (3.1%)

Visceral malperfusion

5 (including 1 lower limb)

27 (4 lower limbs with 1 amputation)

32 (2.0)

Aortoesophageal fistula

0

4 (1 esophageal necrosis)

4 (< 0.1)

Cerebrovascular accident

11 (including 1 TIA)

30

41 (2.7)

Type I endoleak

39

43

82 (5.2)

Type II endoleak

6

5

11 (< 0.1)

Paraplegia/paraparesis

6

24 (3 hemiplegia)

30 (1.9)

Partial thrombosis of false lumen

16

23

39 (2.5)

Conversion to open

16

14

30 (1.9)

Secondary interventions

25

40

65 (4.1)

Device migration/modular disconnection/junctional leaks

5

2

7 (< 0.1)

Emboli

4

0

4 (< 0.1)

Medical complications (cardiac, pulmonary, multiorgan failure)

29

25

54 (3.4)

Renal failure

8

23

31 (2.0)

Overstenting celiac artery

1

0

1 (< 0.1)

Postimplantation syndrome

3

0

3 (< 0.1)

Failure

2

0

2 (< 0.1)

Total complication rate

197 (25.0%)

288 (36.6%)

485 (30.8%)

Abbreviation: TEVAR, thoracic endovascular aortic repair.


With regard to the comparison of the 1998 to 2007 period (787 patients) with the 2007 to 2013 period (787 patients), the findings were quite significant. The stent-graft–related mortality rates (which includes the subset of patients who died; n = 127) doubled in the 2007 to 2013 period versus the 1998 to 2007 period; 56.2 versus 24.0%, respectively (p < 0.05 using Pearson chi-square test with a linear-by-linear association of p = 0.020). This was contributed mainly by three patient groups: (1) the persistent visceral malperfusion/lower limb malperfusion group, (2) the ruptured false lumen/type I endoleak/aorto-esophageal fistula group, and (3) the all-cause medical-related group ([Table 2]).

The morbidity rates revealed a similar pattern showing 36.6 versus 25.0% in the 2007 to 2013 and 1998 to 2007 groups, respectively, but did not reach statistical significance (p > 0.05). The main contributors to this included retrograde type A dissections, visceral malperfusion, cerebrovascular accidents, partial thrombosis of the false lumen, secondary interventions, and renal failure ([Table 3]).

There was no major statistical difference with regard to age or stent-graft used.


#

Discussion

Background

Acute aortic syndrome describes the acute presentation of patients with characteristic aortic pain caused by potentially life-threatening thoracic aortic pathology. These include aortic dissection, intramural hematoma, penetrating aortic ulcer, aneurysmal leakage or rupture, and traumatic transaction.[12] Aortic dissection can lead to aneurysm formation and its associated complications. The etiology is multifactorial with causes related to connective tissue or inherited disorders, developmental disorders associated with pregnancy, syphilis, crack cocaine usage, and cardiac catheterization.

Traditional management consisted of hypotensive medical management with open surgical intervention reserved for complicated cases with intractable pain, uncontrolled hypertension, progression of dissection, rupture, dilatation, lower limb ischemia, or visceral hypoperfusion.[13] Stent-graft technology has caused a paradigm shift in the approach for symptomatic cases. This is not without major risk which includes stroke, transient ischemic attacks, paraplegia, paraparesis, distal embolization, migration, endoleak, progressive dilatation, and inadvertent covering of arch or visceral vessels.[14]


#

Literature Review

De Bakey et al[13] described their experience Between 1953 and 1993 with a total of 659 patients undergoing descending thoracic aneurysm resection. The most common cause was atherosclerosis and pain was the main presenting symptom. Perioperative mortality fell from 24.2% between 1953 and 1964 to 14.3% between 1970 and 1993 using conventional open techniques. Paraplegia occurred in 4.1%, and paraparesis occurred in 5.9%. The major source of perioperative morbidity and mortality was cardiac causes (48%) followed by perioperative hemorrhage (14.4%), pulmonary complications (14.4%), and rupture of another aneurysmal segment (12.0%).[13]

TEVAR has now become the standard of care for symptomatic disease in the past 10 years. The largest articles included that of Eggebrecht et al from Germany in 2005 in the European Heart Journal [3] with an analysis of 609 cases collected from 39 studies from 1999 to 2004. There has also been another article published by Walsh et al[4] from Cambridge, United Kingdom, in the Journal of Vascular Surgery, 2008, with 17 eligible series totaling 1,109 patients between 1991 and 1997. This particular article did not specifically address Stanford B dissection and included data with respect to aneurysm formation and traumatic rupture.

Recently, the first randomized control trial was published by Nienaber et al[7] in December 2009 and most of the studies have been retrospective observational studies. Nienaber et al randomized 72 patients to elective stent-graft repair with medical management and 68 patients to medical therapy alone with surveillance with the primary end point being all-cause death at 2 years in uncomplicated type B aortic dissection. TEVAR failed to improve the 2-year survival and adverse event rates despite favorable aortic remodeling.[7] [8]

The NICE (National Institute for Clinical Excellence) guideline was based on a systematic review of published evidence commissioned by the institute with a total of 29 studies (27 case series and 2 comparative observational studies). In one comparative study, the technical success was 100% (67 patients) and overall technical success rate was 93% across 18 studies (16 case series and 2 comparative studies). The conversion to open rate varied from 0% (26 cases) to 7% (1 of 14 cases) and the number who developed aneurysmal dilatation varied from 0% (18 cases) to 7% (2 of 29 cases). The largest study of 84 patients showed an aneurysmal dilatation rate of 5% (4 of 84). The number of patients who experienced a decrease in aneurysm size varied from 100% in one study to 17% in another. Of relevance to this present article, the 30-day mortality by NICE varied from 0% in several studies with a combined population of 94 patients to 14% (2 of 14 patients). The overall mortality ranged from 3 to 24% across 17 studies with a mean follow-up of 14 months. The most common complication was endoleak with a mean incidence of 13% over 12 months (752 patients). In five studies, there were no endoleaks reported in 83 patients. In terms of major complications, injuries to access artery occurred in nine case series and included iliac artery dissection in one, perforation of the iliac artery in one, and rupture of the femoral artery in two cases. There were six cases of stent-graft migration in 15 case series. Other complications included wound problems in 25%, stroke in 19%, renal failure requiring dialysis in 11%, and paraplegia in 7%.[14]

The article of Eggebrecht et al showed procedural success in 98% and major complications in 11% including a stroke rate of 0.8% and paraplegia of 1.9%. Overall complications were higher in acute dissections compared with chronic. Overall survival rates were 90% at 6 months and 88% at 2 years.[3]

A recent study by Thrumurthy et al[15] in 2010 (at St. George's Vascular Institute, London) showed the role of TEVAR in chronic type B aortic dissection with reference to its midterm success. Analysis on 17 studies of 567 patients was conducted showing technical success in 89.9% and a midterm mortality of 9.2% (46/499) with a median follow-up of 24 months. Morbidity included an 8.1% endoleak rate (type I) and reintervention rates ranging from 0 to 60% with a median follow-up of 31 months. Of 332 patients, 26 (7.8%) developed aneurysms of the distal aorta or continued false lumen perfusion with aneurysmal dilatation. Rare complications included delayed retrograde type A dissection (0.67%), aortooesophageal fistula (0.22%), and neurological complications (paraplegia 2/447, 0.45%; stroke 7/475, 1.5%). It was concluded that the absolute benefit of TEVAR over alternative treatments for chronic type B aortic dissection remains uncertain with a lack of natural history data for medically treated cases; significant heterogeneity in case selection and the absence of consensus reporting standards for intervention are significant obstructions.[15]

In 2010, Nienaber et al critiqued the INSTEAD trial and concluded that there was no difference in all-cause mortality at 2 years, with cumulative survival of 95% with optimal medical therapy versus 88% with TEVAR (p = 0.15). Aorta-related mortality was also not different (p = 0.44) within the first 2 years of follow-up, and risk for the combined endpoints of aorta-related death (rupture) and progression (including conversion or additional endovascular or open surgery) was similar (p = 0.65). They concluded that the data in the INSTEAD trial show that in the setting of clinically stable, so-called uncomplicated type B aortic dissection, elective stent-graft placement on top of optimized medical management fails to improve survival and adverse events within an observation period of 2 years, despite favorable aortic remodeling.[16]

Fattori et al[17] in the team's consensus document examined 63 studies published from 2006 to 2012. There were 1,548 patients treated medically, 1,706 with open surgery, and 3,457 underwent TEVAR. The pooled early mortality rates (first 2 weeks) were 6.4% with medical treatment, 10.2% with TEVAR, and 17.5% with open surgery, mostly for complicated cases. Limited data for treatment of subacute (2–6 weeks after onset) type B aortic dissection showed an early mortality rate of 2.8% with TEVAR. In chronic (after 6 weeks) type B aortic dissection, 5-year survival of 60 to 80% was expected with medical therapy. If interventional treatment was applied, the pooled early mortality rate was 6.6% with TEVAR and 8.0% with open surgery.[17]

It seems that overall mortality and morbidity rates have been increased for TEVAR intervention for S-B-AD. This was demonstrated in the study herein presented, whereby the overall mortality and morbidity rates for TEVAR were 8.07% (n = 127) and 30.8% (n = 485), respectively. Additionally, the stent-graft–related mortality rate (which includes the subset of patients who died; n = 127) increased in the 2007 to 2013 group (787 patients) compared with the 1998 to 2007 group (787 patients) (56.2 vs. 24%; p < 0.05) as well as the overall morbidity rates from 25% (1998–2007) to 36.6% (2007–2013).

With respect to type I endoleak rates, this study showed a marginal increase in the leak rate from 39 in the 1998 to 2007 group to 43 in the 2007 to 2013 group with overall type I endoleak rates averaging 5.2%. Type II endoleaks also showed few numbers with an overall leak rate of < 0.1%.

Retrograde aortic dissection accounted for 3.1% (49) of the study population with only a marginal increase from 21 to 28 in the 1998 to 2007 period and 2007 to 2013 periods, respectively. This is in keeping with most of the other studies with rates in a similar range.

Visceral malperfusion was, however, on a significant increase as seen from 5 in the 1998 to 2007 period compared with 27 cases in the 2007 to 2013 period.

This may be explained by a more aggressive clinical approach to patient selection for S-B-AD and quite possibly better reporting leading to bias from previous inadequate data collection in older studies. This has occurred in spite of overall improvement in stent-graft technology and techniques. In conclusion, the data available are still too heterogeneous to make solid conclusions and the only way forward is through better data registries and well-designed clinical trials.


#
#
#

Conflict of Interest

No conflicts of interest declared.

Declaration
This article is based on a thesis for the Masters of Science in Surgical Practice done in 2009 at the University of Kent at Canterbury, England.

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  • 60 Grabenwoger M, Fleck T, Czerny M , et al. Endovascular stent graft placement in patients with acute thoracic aortic syndromes. Eur J Cardiothorac Surg 2003; 23 (5) 788-793 , discussion 793
  • 61 Lonn L, Delle M, Falkenberg M , et al. Endovascular treatment of type B thoracic aortic dissections. J Card Surg 2003; 18 (6) 539-544
  • 62 Lambrechts D, Casselman F, Schroeyers P, De Geest R, D'Haenens P, Degrieck I. Endovascular treatment of the descending thoracic aorta. Eur J Vasc Endovasc Surg 2003; 26 (4) 437-444
  • 63 Bell RE, Taylor PR, Aukett M, Sabharwal T, Reidy JF. Results of urgent and emergency thoracic procedures treated by endoluminal repair. Eur J Vasc Endovasc Surg 2003; 25 (6) 527-531
  • 64 Orend KH, Scharrer-Pamler R, Kapfer X, Kotsis T, Görich J, Sunder-Plassmann L. Endovascular treatment in diseases of the descending thoracic aorta: 6-year results of a single center. J Vasc Surg 2003; 37 (1) 91-99
  • 65 Weber F, Schneider H, Körber T, Petzsch M, Rehders T, Nienaber CA. Percutaneous stents for the treatment of stenosis of descending aorta [in German]. Z Kardiol 2003; 92 (1) 84-89
  • 66 Matravers P, Morgan R, Belli A. The use of stent grafts for the treatment of aneurysms and dissections of the thoracic aorta: a single centre experience. Eur J Vasc Endovasc Surg 2003; 26 (6) 587-595
  • 67 Shim WH, Koo BK, Yoon YS , et al. Treatment of thoracic aortic dissection with stent-grafts: midterm results. J Endovasc Ther 2002; 9 (6) 817-821
  • 68 Herold U, Piotrowski J, Baumgart D, Eggebrecht H, Erbel R, Jakob H. Endoluminal stent graft repair for acute and chronic type B aortic dissection and atherosclerotic aneurysm of the thoracic aorta: an interdisciplinary task. Eur J Cardiothorac Surg 2002; 22 (6) 891-897
  • 69 Kato N, Shimono T, Hirano T , et al. Midterm results of stent-graft repair of acute and chronic aortic dissection with descending tear: the complication-specific approach. J Thorac Cardiovasc Surg 2002; 124 (2) 306-312
  • 70 Shimono T, Kato N, Yasuda F , et al. Transluminal stent-graft placements for the treatments of acute onset and chronic aortic dissections. Circulation 2002; 106 (12) (Suppl. 01) I241-I247
  • 71 Totaro M, Mazzesi G, Marullo AG, Neri E, Fanelli F, Miraldi F. Endoluminal stent grafting of the descending thoracic aorta. Ital Heart J 2002; 3 (6) 366-369
  • 72 Palma JH, de Souza JA, Rodrigues Alves CM, Carvalho AC, Buffolo E. Self-expandable aortic stent-grafts for treatment of descending aortic dissections. Ann Thorac Surg 2002; 73 (4) 1138-1141 , discussion 1141–1142
  • 73 Criado FJ, Clark NS, Barnatan MF. Stent graft repair in the aortic arch and descending thoracic aorta: a 4-year experience. J Vasc Surg 2002; 36 (6) 1121-1128
  • 74 Bortone AS, Schena S, Mannatrizio G , et al. Endovascular stent-graft treatment for diseases of the descending thoracic aorta. Eur J Cardiothorac Surg 2001; 20 (3) 514-519
  • 75 Sailer J, Peloschek P, Rand T, Grabenwöger M, Thurnher S, Lammer J. Endovascular treatment of aortic type B dissection and penetrating ulcer using commercially available stent-grafts. AJR Am J Roentgenol 2001; 177 (6) 1365-1369
  • 76 Won JY, Lee DY, Shim WH , et al. Elective endovascular treatment of descending thoracic aortic aneurysms and chronic dissections with stent-grafts. J Vasc Interv Radiol 2001; 12 (5) 575-582
  • 77 Yamazaki I, Imoto K, Ichikawa Y, Kondo J, Takanashi Y. Stent-graft treatment of type B aortic dissection involving the right aortic arch: case report. Jpn Circ J 2000; 64 (9) 727-728
  • 78 Shimono T, Kato N, Hirano T, Takeda K, Yada I. Early and mid-term results of endovascular stent grafting for aortic aneurysms [in Japanese]. Nippon Geka Gakkai Zasshi 1999; 100 (8) 500-505
  • 79 Czermak BV, Waldenberger P, Fraedrich G , et al. Treatment of Stanford type B aortic dissection with stent-grafts: preliminary results. Radiology 2000; 217 (2) 544-550
  • 80 Beregi JP, Prat A, Gaxotte V, Delomez M, McFadden EP. Endovascular treatment for dissection of the descending aorta. Lancet 2000; 356 (9228) 482-483
  • 81 Nienaber CA, Fattori R, Lund G , et al. Nonsurgical reconstruction of thoracic aortic dissection by stent-graft placement. N Engl J Med 1999; 340 (20) 1539-1545
  • 82 Dake MD, Kato N, Mitchell RS , et al. Endovascular stent-graft replacement for the treatment of acute aortic dissection. N Engl J Med 1999; 340 (20) 1546-1552
  • 83 da Fonseca JH, Buffolo E, Carvalho AC , et al. Utilization of self-expandable prosthesis (stent) introduced through the femoral artery for treatment of dissection of the descending aorta [in Portuguese]. Arq Bras Cardiol 1998; 70 (6) 389-2

Address for correspondence

Michael Ramdass, FRCS, FACS
Department of Clinical Surgical Sciences, University of the West Indies, Port of Spain General Hospital
Charlotte Street, Port of Spain West Indies
Trinidad and Tobago   

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  • 62 Lambrechts D, Casselman F, Schroeyers P, De Geest R, D'Haenens P, Degrieck I. Endovascular treatment of the descending thoracic aorta. Eur J Vasc Endovasc Surg 2003; 26 (4) 437-444
  • 63 Bell RE, Taylor PR, Aukett M, Sabharwal T, Reidy JF. Results of urgent and emergency thoracic procedures treated by endoluminal repair. Eur J Vasc Endovasc Surg 2003; 25 (6) 527-531
  • 64 Orend KH, Scharrer-Pamler R, Kapfer X, Kotsis T, Görich J, Sunder-Plassmann L. Endovascular treatment in diseases of the descending thoracic aorta: 6-year results of a single center. J Vasc Surg 2003; 37 (1) 91-99
  • 65 Weber F, Schneider H, Körber T, Petzsch M, Rehders T, Nienaber CA. Percutaneous stents for the treatment of stenosis of descending aorta [in German]. Z Kardiol 2003; 92 (1) 84-89
  • 66 Matravers P, Morgan R, Belli A. The use of stent grafts for the treatment of aneurysms and dissections of the thoracic aorta: a single centre experience. Eur J Vasc Endovasc Surg 2003; 26 (6) 587-595
  • 67 Shim WH, Koo BK, Yoon YS , et al. Treatment of thoracic aortic dissection with stent-grafts: midterm results. J Endovasc Ther 2002; 9 (6) 817-821
  • 68 Herold U, Piotrowski J, Baumgart D, Eggebrecht H, Erbel R, Jakob H. Endoluminal stent graft repair for acute and chronic type B aortic dissection and atherosclerotic aneurysm of the thoracic aorta: an interdisciplinary task. Eur J Cardiothorac Surg 2002; 22 (6) 891-897
  • 69 Kato N, Shimono T, Hirano T , et al. Midterm results of stent-graft repair of acute and chronic aortic dissection with descending tear: the complication-specific approach. J Thorac Cardiovasc Surg 2002; 124 (2) 306-312
  • 70 Shimono T, Kato N, Yasuda F , et al. Transluminal stent-graft placements for the treatments of acute onset and chronic aortic dissections. Circulation 2002; 106 (12) (Suppl. 01) I241-I247
  • 71 Totaro M, Mazzesi G, Marullo AG, Neri E, Fanelli F, Miraldi F. Endoluminal stent grafting of the descending thoracic aorta. Ital Heart J 2002; 3 (6) 366-369
  • 72 Palma JH, de Souza JA, Rodrigues Alves CM, Carvalho AC, Buffolo E. Self-expandable aortic stent-grafts for treatment of descending aortic dissections. Ann Thorac Surg 2002; 73 (4) 1138-1141 , discussion 1141–1142
  • 73 Criado FJ, Clark NS, Barnatan MF. Stent graft repair in the aortic arch and descending thoracic aorta: a 4-year experience. J Vasc Surg 2002; 36 (6) 1121-1128
  • 74 Bortone AS, Schena S, Mannatrizio G , et al. Endovascular stent-graft treatment for diseases of the descending thoracic aorta. Eur J Cardiothorac Surg 2001; 20 (3) 514-519
  • 75 Sailer J, Peloschek P, Rand T, Grabenwöger M, Thurnher S, Lammer J. Endovascular treatment of aortic type B dissection and penetrating ulcer using commercially available stent-grafts. AJR Am J Roentgenol 2001; 177 (6) 1365-1369
  • 76 Won JY, Lee DY, Shim WH , et al. Elective endovascular treatment of descending thoracic aortic aneurysms and chronic dissections with stent-grafts. J Vasc Interv Radiol 2001; 12 (5) 575-582
  • 77 Yamazaki I, Imoto K, Ichikawa Y, Kondo J, Takanashi Y. Stent-graft treatment of type B aortic dissection involving the right aortic arch: case report. Jpn Circ J 2000; 64 (9) 727-728
  • 78 Shimono T, Kato N, Hirano T, Takeda K, Yada I. Early and mid-term results of endovascular stent grafting for aortic aneurysms [in Japanese]. Nippon Geka Gakkai Zasshi 1999; 100 (8) 500-505
  • 79 Czermak BV, Waldenberger P, Fraedrich G , et al. Treatment of Stanford type B aortic dissection with stent-grafts: preliminary results. Radiology 2000; 217 (2) 544-550
  • 80 Beregi JP, Prat A, Gaxotte V, Delomez M, McFadden EP. Endovascular treatment for dissection of the descending aorta. Lancet 2000; 356 (9228) 482-483
  • 81 Nienaber CA, Fattori R, Lund G , et al. Nonsurgical reconstruction of thoracic aortic dissection by stent-graft placement. N Engl J Med 1999; 340 (20) 1539-1545
  • 82 Dake MD, Kato N, Mitchell RS , et al. Endovascular stent-graft replacement for the treatment of acute aortic dissection. N Engl J Med 1999; 340 (20) 1546-1552
  • 83 da Fonseca JH, Buffolo E, Carvalho AC , et al. Utilization of self-expandable prosthesis (stent) introduced through the femoral artery for treatment of dissection of the descending aorta [in Portuguese]. Arq Bras Cardiol 1998; 70 (6) 389-2

Zoom Image
Fig. 1 PRISMA flow diagram showing search strategy.