Open Access
CC BY 4.0 · The Arab Journal of Interventional Radiology 2024; 08(02): 087-095
DOI: 10.1055/s-0044-1782692
Original Article

Outcome of Secondary Interval Rheolytic Thrombectomy after Localized Intra-Arterial Catheter-Directed Thrombolysis through Power-Pulse Spray Technique in Cases of Partially Successful or Failed Primary Rheolytic Thrombectomy

Autoren

  • Biswajit Sahoo

    1   Department of Radiodiagnosis and Interventional Radiology, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
  • Satyapriya Mohanty

    2   Department of Cardiothoracic and Vascular Surgery, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
  • Siddhartha Sathia

    2   Department of Cardiothoracic and Vascular Surgery, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
  • Rudra Pratap Mahapatra

    2   Department of Cardiothoracic and Vascular Surgery, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
  • Manoj Kumar Nayak

    1   Department of Radiodiagnosis and Interventional Radiology, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
  • Ritesh Panda

    3   Department of Plastic Surgery, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
  • Manas Kumar Panigrahi

    4   Department of Gastroenterology, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
  • Sourav Kumar Mishra

    5   Department of Medical Oncology, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
  • Prakash Kumar Sasmal

    6   Department of Surgery, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
  • Pankaj Kumar

    6   Department of Surgery, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
  • S. Manawar Ali

    6   Department of Surgery, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
  • Nerbadyswari Deep Bag

    1   Department of Radiodiagnosis and Interventional Radiology, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
  • Saroj Kumar Das Majumdar

    7   Department of Radiation Oncology, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
  • Sandip Kumar Barik

    7   Department of Radiation Oncology, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
  • Sujata Devi

    8   Department of Medicine, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
  • Arunprakash Pitchaimuthu

    1   Department of Radiodiagnosis and Interventional Radiology, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
 

Abstract

Objectives The aim of this study was to evaluate the safety and effectiveness of secondary interval AngioJet rheolytic thrombectomy after localized intra-arterial catheter-directed thrombolysis (CDT) through power-pulse spray (PPS) technique in partially successful or failed primary AngioJet rheolytic thrombectomy cases of acute and subacute peripheral artery thrombosis.

Materials and Methods This retrospective study included 12 acute (< 2 weeks) and subacute (2–4 weeks) peripheral arterial thrombosis patients who underwent primary thrombectomy alone without CDT and patients who received secondary thrombectomy after CDT through PPS at our institute between May 2022 and December 2022. Technical success, procedure-related complications (local and systemic), amputations, and 1-year patency were evaluated.

Results The angiographic success after primary thrombectomy was evaluated in 12 patients (9 acute and 3 subacute), and the results were categorized into three groups. Of 12 patients, complete success, partial success, and failure were noted in three (25%), five (41.7%), and four (33.3%) patients, respectively, after primary thrombectomy alone. Complete luminal patency was restored in all nine cases of partial success and failure in postprimary thrombectomy through adjunctive PPS thrombolysis and secondary thrombectomy. Technical and clinical success was achieved in all patients (100%). Transient hemoglobinuria was seen in five (41.7%) patients, and all had long-segment occlusion. At 1 year follow-up, no reocclusion, limb loss, or death was noted.

Conclusion Complete success after primary thrombectomy was more likely in the setting of short-segment occlusion and small-caliber arteries. In patients with partial success or failure after the primary thrombectomy alone, secondary thrombectomy may be performed after the adjuvant PPS thrombolysis to achieve complete recanalization.


Introduction

The sudden and severe reduction in blood flow to the limb is known as acute limb ischemia, and it is imperative to reinstate perfusion as early as possible. A major cause of limb ischemia is thrombotic blockage of the peripheral arteries or surgical bypass grafts. The mainstay of care has been primarily surgical; nevertheless, limb salvage rates and surgical mortality, particularly in the presence of severe ischemia, have been subpar.[1] [2] Pharmacologic thrombolysis is now frequently used as an alternate therapy for peripheral artery thrombosis; however, its effectiveness is frequently constrained by protracted infusion times, hemorrhagic complications, and insufficient outcomes.[3] [4] Various percutaneous mechanical thrombectomy devices (aspiration, rheolysis, or mechanical rotation) have been created to achieve fast reperfusion in the occluded vessel and overcome the limitations of these surgical and pharmaceutical techniques.[5] These tools may reduce or altogether remove the need for thrombolytic drugs while being less intrusive than surgery.[6] AngioJet rheolytic thrombectomy system (Boston Scientific, Marlborough, Massachusetts, United States) uses high-velocity saline jets to macerate and evacuate thrombi. Clinical investigations have shown that AngioJet rheolytic thrombectomy is safe and effective for coronary applications, peripheral arterial thrombosis, deep vein thrombosis, and acute pulmonary embolism.[7] In most arterial thrombosis cases, rheolytic thrombectomy followed with or without thrombolysis gives satisfactory results. In contrast, adequate results are not achieved in a few cases, such as long-segment occlusion or high thrombus burden. In those cases, catheter-directed thrombolysis (CDT) using the power-pulse spray (PPS) technique followed by secondary thrombectomy can be performed to obtain a good outcome, which we have described in the present article.


Materials and Methods

Study Population

It is a retrospective study, so the institute's ethical committee has waived the need for de novo consent. All the patients had given consent for the procedures. Twelve patients with acute (< 2 weeks) and subacute (2–4 weeks) occlusion of the peripheral arteries who underwent rheolytic thrombectomy with or without thrombolysis between May 2022 and December 2022 were included. Patients with prior local thrombolysis, surgical thrombectomy, or chronic occlusion (> 4 weeks) were excluded from our study. A flowchart to show the patient selection and results is presented in [Fig. 1].

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Fig. 1 Flowchart to show the patient selection and results.

Procedure Protocol

The interventions were performed by interventional radiologists with more than 7 years of experience. All the patients underwent a preliminary Doppler study followed by computed tomography angiography for better delineation of the location and extent of the thrombus. Depending upon the case, a 6 Fr introducer sheath was inserted in the right or left common femoral artery, and a 5,000 IU bolus of heparin was given through the sheath at the start of the intervention, followed by an additional 1,000 IU at every hour of the procedure. The thrombosed arterial segment was negotiated using a 5F Multipurpose Angiographic catheter (Cook, United States) and hydrophilic 0.035/0.014-inch guidewires (Terumo, Japan). Next, the rheolytic thrombectomy catheter (Solent Omni/Solent Dista, Boston Scientific, Marlborough, Massachusetts, United States) was advanced into the thrombotic vessel over the hydrophilic guidewires with its tip in the normal vascular segment distal to the thrombotic segment. Thrombectomy alone was performed in multiple passes (2–4) using saline to extract the maximum volume of the thrombus, which hardly took 5 to 10 minutes. No further adjuvant thrombolytics were given if the lumen showed more than 95% luminal patency (complete success). In partial success (50–95% luminal patency) or unsuccessful (<50% luminal patency) cases after primary thrombectomy alone, we performed CDT through the PPS mode using reteplase (18 mg) followed by secondary thrombectomy using the same thrombectomy catheter. Thrombectomy time was kept within 10 minutes as per the manufacturer's guidelines. Reteplase is a recombinant human tissue-type plasminogen activator with peak response at 60 to 90 minutes. So, the clot is given a dwell time to lyse for 90 minutes of the PPS thrombolysis followed by secondary thrombectomy. For alteplase, it was 60 minutes. The patient was given intravenous heparin for 5 days and was discharged on dual antiplatelets (aspirin and clopidogrel). Balloon angioplasty with or without stenting was reserved for nonresponders to PPS thrombolysis and secondary thrombectomy. An algorithm for managing acute and subacute peripheral arterial occlusion is presented in [Fig. 2].

Zoom
Fig. 2 Algorithm for the management of acute and subacute peripheral arterial occlusion. CT, computed tomography.

Definition of Outcome, Technical Success, Complications, and Follow-Up

The technical success was assessed based on angiographic images, hemodynamic and clinical parameters. The primary end-point of each intervention was angiographic success. More than 95% luminal patency was considered a complete success, while 50 to 95% and less than 50% luminal patency was considered partial success and failure, respectively.[8] Hemodynamic success was evaluated based on pre-and postprocedure pulse and Doppler examination. In addition to the demographics, periprocedural imaging, location of thrombus, and occlusion length were analyzed. Procedure-related complications (local and systemic), amputations, and 1-year patency were also evaluated.



Results

A detailed overview of each patient, the extent and location of the thrombus, and the effectiveness of primary thrombectomy alone and secondary thrombectomy are presented in [Table 1]. Of the 12 patients, 8 (66.7%) were female. Nine (75%) patients presented with acute thrombus (< 2 weeks), and 3 (25%) presented with subacute thrombus (between 2 and 4 weeks). We have categorized the results into three groups for simplification: complete success (> 95% luminal patency), partial success (50–95% luminal patency), and failure (< 50% luminal patency) after the primary thrombectomy alone. Complete success was seen in 3 (25%) of 12 patients after primary thrombectomy alone. These three patients presented with acute thrombosis of the distal brachial artery, popliteal artery, and distal superficial femoral artery with a length of the thrombotic segment of 4.0, 5.6, and 4.8 cm, respectively. Complete thrombus resolution was achieved after two to three passes of the thrombectomy catheter, and no thrombolysis was performed. Partial success was noted in 5 (41.7%) of 12 patients after primary thrombectomy alone. One patient had subacute thrombosis of the distal brachial artery, proximal ulnar artery, and proximal radial artery for a length of 15.0 cm and presented on day 25 of the onset of symptoms secondary to accidental needle injury to the brachial artery. We could achieve partial success after postprimary thrombectomy, so we performed the PPS technique using reteplase followed by secondary thrombectomy after 90 minutes to attain complete success ([Fig. 3]). In addition, two patients presented with subacute thrombosis of the superficial femoral artery (7.6 cm) and subclavian artery (5.0 cm). One presented with acute popliteal, anterior, and posterior tibial arteries thrombosis. One patient undergoing treatment for carcinoma stomach presented with acute thrombosis of her axillary artery (3.6 cm) and superficial femoral artery (7 cm). All these patients were offered PPS (reteplase) followed by secondary thrombectomy after a partially successful primary thrombectomy alone. Failure of thrombus evacuation (< 50% luminal patency) was seen in 4 (33.3%) of 12 patients after primary thrombectomy alone. One patient presented with acute occlusion of the axillary artery, brachial artery, proximal ulnar artery, and proximal radial artery for a length of 35 cm following trauma to the shoulder region. Primary thrombectomy was attempted but unsuccessful, so we performed PPS (reteplase) followed by secondary thrombectomy to attain complete success ([Fig. 4]). The second patient had acute thrombosis of the entire popliteal artery, anterior and posterior tibial arteries, with an additional short-segment (2.6 cm) discontinuous occlusion of the ipsilateral common femoral artery ([Fig. 5]). This patient was recently diagnosed with gallbladder carcinoma with liver metastasis. After the failure of the primary thrombectomy, we performed PPS (reteplase) followed by a secondary thrombectomy to attain complete success ([Fig. 6]). The third patient was diagnosed with dilated cardiomyopathy and had acute occlusion of the entire left lower limb arteries (superficial femoral artery, popliteal artery, anterior and posterior tibial arteries). The fourth patient presented with an acute thrombus of the superficial femoral and popliteal arteries (18 cm). Angiographic success was achieved in all 12 patients (100%). Five (41.7%) patients had transient hemoglobinuria, which resolved within 72 hours of the procedure. The basis for hemoglobinuria in these patients was probably because of long-segment occlusion or significant thrombus burden requiring more thrombectomy duration and so more hemolysis. None of the patients required postprocedure blood transfusions or infusion of thrombolytics. No distal embolization was noted in any patient during the procedure. All patients were discharged on a dual-antiplatelet regimen for 3 months or lifelong depending upon the cause of thrombotic occlusion, and physiotherapy was advised. At 3, 6, 9, and 12-month follow-ups, all these 12 patients had patent arteries on color Doppler without any evidence of reocclusion. Reperfusion edema was seen in all the patients resolved within 1 to 2 months of the procedure. No loss of limb or death was noted.

Table 1

Demographic character, location, and extent of thrombus and technical success after primary thrombectomy alone and secondary thrombectomy with adjunctive use of thrombolytics

Sl. no

Age (years)

Sex (M/F)

Location of thrombus

Length of occlusion

Interval between onset of symptoms and intervention

Age of thrombus

Primary thrombectomy (technical success)

Secondary interval thrombectomy after “Power-Pulse spray thrombolysis” (technical success)

Complications

Pre-existing conditions

1

39

F

AA, BA and proximal UA, and proximal RA (continuous)

35 cm

2 days

Acute

Failure

Complete success

Transient hemoglobinuria

Not significant

2

24

F

Distal BA, proximal UA and RA (continuous)

15 cm

25 days

Subacute

Partial success

Complete success

Transient hemoglobinuria

Not significant

3

66

M

CFA, PA, ATA, and PTA (discontinuous)

2.6 cm (CFA); Entire PA, ATA, PTA

1 day

Acute

Failure

Complete success

Transient hemoglobinuria

Carcinoma gallbladder

4

37

M

SFA, PA, ATA, PTA (continuous)

Entire limb

1 day

Acute

Failure

Complete success

Transient hemoglobinuria

Dilated cardiomyopathy

5

68

F

BA (distal)

4.0 cm

6 days

Acute

Complete success

Nil

Not significant

6

34

F

PA

5.6 cm

1 day

Acute

Complete success

Nil

Not significant

7

45

M

SFA

7.6 cm

18 days

Subacute

Partial success

Complete success

Nil

Not significant

8

42

F

SA

5.0 cm

21 days

Subacute

Partial success

Complete success

Nil

Not significant

9

48

F

SFA (distal)

4.8 cm

2 days

Acute

Complete success

Nil

Nil

10

64

F

SFA and PA

18.0 cm

1 day

Acute

Failure

Complete success

Transient hemoglobinuria

Nil

11

55

M

PA, ATA, and PTA

Beyond SFA

1 day

Acute

Partial success

Complete success

Nil

Nil

12

23

F

AA, SFA

3.6 cm, 7.0 cm

2 days

Acute

Partial success

Complete success

Nil

Carcinoma stomach

Abbreviations: AA, axillary artery; ATA, anterior tibial artery; BA, brachial artery; CFA, common femoral artery; PA, popliteal artery; PTA, posterior tibial artery; RA, radial artery; SA, subclavian artery; SFA, superficial femoral artery; UA, ulnar artery.


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Fig. 3 Computed tomography coronal image (A) showing complete occlusion of the distal left brachial artery (BA), proximal radial artery (RA), and ulnar artery (UA). Preprocedure digital subtraction angiography (DSA) image (B) showing complete occlusion of the distal left BA, proximal RA, and UA with the reformation of the distal RA and UA from the multiple collaterals (white arrow) around the elbow joint. Postprimary rheolytic thrombectomy: DSA image (C) showing partial success in the form of minimal residual thrombus in the distal BA with no residual thrombus in proximal RA. However, the UA occlusion persisted. Postcatheter-based thrombolysis with secondary interval rheolytic thrombectomy: DSA image (D) showing complete success with normal BA, RA, and UA opacification with no residual thrombosis.
Zoom
Fig. 4 Computed tomography coronal image (A) showing complete occlusion of the axillary artery (AA), brachial artery(BA), radial artery (RA), and ulnar artery (UA) with visualization of a few collaterals. Preprocedure digital subtraction angiography (DSA) image (B) showing complete occlusion of the right upper limb arteries beyond the subclavian artery (SA). Postprimary rheolytic thrombectomy: DSA images (C, D) showing faint opacification of AA and proximal BA with nonopacification of the distal BA, RA, and UA. Vertebral artery (VA). Postcatheter-based thrombolysis with secondary interval rheolytic thrombectomy: DSA images (E, F) showing complete success with normal opacification of the AA, BA, RA, and UA with minimal residual thrombosis in AA.
Zoom
Fig. 5 Computed tomography coronal image (A) showing acute short-segment complete occlusion of the distal left common femoral artery (CFA) with partial thrombus in the proximal superficial femoral artery (SFA). There is complete acute thrombosis of the entire popliteal artery (PA), anterior (ATA), and posterior tibial (PTA) arteries. Preprocedure digital subtraction angiography (DSA) image (B) showing a complete thrombus in the left distal CFA with partial thrombus in the proximal SFA; Preprocedure DSA image (C) showing an abrupt cutoff at the junction of the SFA and PA suggesting thrombus. Postprimary rheolytic thrombectomy: DSA image (D) showing complete success in the form of minimal residual thrombus in the distal CFA with no residual thrombus in proximal SFA. However, the PA, ATA, and PTA occlusion persisted, suggesting failure (E).
Zoom
Fig. 6 Postcatheter-based thrombolysis with secondary interval rheolytic thrombectomy: digital subtraction angiography images (AD) showing complete success with normal opacification of the common femoral artery (CFA), superficial femoral artery (SFA), popliteal artery (PA), anterior artery (ATA), and posterior tibial artery (PTA) with no residual thrombosis.

Discussion

Peripheral arterial thrombotic events are an emergency and necessitate immediate treatment. It can be managed through surgical thrombectomy, balloon angioplasty, localized or systemic thrombolysis, or catheter-based thrombectomy techniques (e.g., aspiration thrombectomy, rheolytic thrombectomy).[1] [2] [9] Balloon angioplasty is usually avoided in acute and subacute thrombotic cases because of the risk of distal embolic showers, especially during the endovascular treatment of long occlusions, and it is not always feasible to use a peripheral protection device (filter).[10] [11] [12] Thrombolysis is also associated with limitations, such as the risk of severe hemorrhagic complications, inability to lyse hard thrombus, long-segment block, and a need for a dedicated care unit.[11] Catheter thrombectomy devices have significantly progressed over the last decade, but literature support for their success is limited. AngioJet rheolytic thrombectomy system is commonly used to remove fresh thrombus and is considered safe and effective. Thrombectomy is done by introducing a pressurized high-velocity saline jet stream through the catheter distal tip. This creates a localized extreme low-pressure (powerful vacuum effect) via the Bernoulli principle and the Venturi effect, which macerates the thrombus. The fragmented thrombus is removed through the catheter's side holes or outflow lumen. Treatment with the device takes approximately 5 to 10 minutes. It also contains a special mechanical function termed “power-pulse spray,” which simultaneously fragments the thrombus and infuses thrombolytic agents directly into the clot, where it is most effective, saturating, and softening tough thrombus for easier removal.[13] [14] The PPS technique augments and combines the advantages and reduces the disadvantages of pharmacologic thrombolysis and rheolytic thrombectomy. AngioJet rheolytic thrombectomy is commonly used to remove clots in arteriovenous fistulas for dialysis access, massive acute pulmonary embolism, lower extremity deep vein thrombosis, peripheral arteries, coronary arteries, and coronary bypass grafts.[15] [16] [17] [18] [19] [20] [21] [22] It is an effective method; however, it is also associated with some complications, such as acute renal failure, hemoglobinuria, and the risk of distal embolism. Moreover, achieving an acceptable outcome with rheolytic thrombectomy alone is challenging in long-segment occlusion cases and needs adjunctive intra-arterial thrombolysis or stenting after the thrombectomy. To avoid rheolytic thrombectomy complications, we adequately hydrated the patient and used the device for not more than 10 minutes within the artery to avoid excessive hemolysis and renal dysfunction as per the manufacturer's guidelines. We give adjunctive local thrombolytics or use a peripheral filter protection device whenever feasible to avoid distal embolization.[23] Another possible adverse effect of rheolytic thrombectomy is fluid overload from the saline jets. Although the rheolytic thrombectomy system works in an isovolumetric fashion, there is still a risk of congestive heart failure.[18] Hence, the procedure should be performed cautiously in patients with underlying renal insufficiency and cardiac failure. Rheolytic thrombectomy alone can be curative in a few selected cases when the thrombus load is nonsignificant or small. Few studies have reported that rheolytic thrombectomy alone without pharmacologic thrombolysis is effective in removing thrombus in a short time.[7] Adjunctive balloon angioplasty, stenting, or thrombolysis is required when there is significant postrheolytic thrombectomy residual stenosis or thrombus burden. Stents are used to enmesh the residual intraluminal thrombus that could affect limb perfusion in the future or are used when there is significant residual stenosis after balloon angioplasty. But, these patients need lifelong oral antiplatelets to maintain the stent patency. A review of the rheolytic thrombectomy literature reveals that AngioJet therapy can substantially remove thrombus burden in a majority of patients and serve as monotherapy stand-alone therapy in 20 to 50% of cases. However, at least 50% will also require adjuvant pharmacologic thrombolysis.[17] [18] [24] Additionally, the likelihood of significant improvement after adjunctive CDT in cases of failed rheolytic thrombectomy is negligible.[18]

In our study, we performed CDT using the PPS technique followed by secondary thrombectomy in partial success or failure of partial thrombectomy alone, especially in cases with long-segment occlusion, large-volume, or significant thrombus burden to achieve complete recanalization of the occluded artery. In previous studies, the waiting period to lyse the thrombus was variable and short (10–30 minutes), which could be a reason for unsatisfactory results. However, we followed the 90-minute waiting period in all of our cases because the age of the thrombus cannot be appropriately assessed.[13] [14] Also, there is a possibility of the coexistence of older more organized thrombus with fresh thrombus. The main disadvantage of doing a secondary thrombectomy is the increase in the total duration of the procedure, which is around 1 to 2 hours, depending upon the type of thrombolytic drug (reteplase/alteplase) used, which might cause discomfort to the patient.

Additionally, there is an increased risk of AngioJet rheolytic thrombectomy complications secondary to excessive hemolysis, which can be avoided through adequate hydration of the patient and the use of the device for not more than 10 minutes within the artery. Also, the radiation exposure to the patient is increased. However, the benefits of doing a secondary thrombectomy are more encouraging. First, we achieved complete success with wall-to-wall patency in all cases where primary thrombectomy alone failed or showed partial success, especially in long-segment occlusion, large-volume, or significant thrombus burden. Second, it avoided the use of metallic stents, which reduced the financial burden on the patient and avoided the need to take lifelong oral antiplatelets to maintain the patency of these stents. Third, when paired with CDT using PPS, rheolytic thrombectomy provides benefits such as rapid revascularization, lowering the dose and duration of thrombolytic drug infusions, and reduced hemorrhagic complications. Our study has several limitations, such as its retrospective nature and a relatively small number of patients with different thrombus ages, locations, and characteristics. Therefore, the outcome of our study may be viewed as a precursory study demonstrating the role of secondary thrombectomy after CDT in partially successful or failed primary thrombectomy alone cases.


Conclusion

Primary thrombectomy alone can reinstate the flow in a thrombosed artery, especially in a short-segment occlusion of a small-to-medium-caliber artery. Partial success or failure after primary thrombectomy with or without local thrombolysis is common in cases of high thrombus volume, long-segment occlusion, or large caliber arteries. In patients with partial success or failure after the primary thrombectomy, secondary thrombectomy may be performed safely and successfully after the adjuvant PPS thrombolysis to restore the luminal patency completely. Well-designed multicenter prospective studies must corroborate these precursory findings in a large cohort of patients to reveal the significance and efficacy of this technique and our findings.



Conflict of Interest

None declared.

Ethical Approval Statement

Ethical approval was waived by the local ethics committee of our institute in view of the retrospective nature of the study and all the procedures being performed were part of the routine care.


Authors' Contribution

B.S., P.S., S.M., S.S, and R.P.M. conceptualized and prepared the original draft preparation. M.K.N., R.P., M.K.P., P.K., S.M.A, N.D.B, S.K.M., S.K.B., S.D., S.K.D.M., and A.P. reviewed and edited the manuscript. All the authors have agreed with the submitted manuscript.



Address for correspondence

Biswajit Sahoo, MD
Department of Radiodiagnosis and Interventional Radiology, All India Institute of Medical Sciences
Bhubaneswar 751019, Odisha
India   

Publikationsverlauf

Artikel online veröffentlicht:
19. April 2024

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Zoom
Fig. 1 Flowchart to show the patient selection and results.
Zoom
Fig. 2 Algorithm for the management of acute and subacute peripheral arterial occlusion. CT, computed tomography.
Zoom
Fig. 3 Computed tomography coronal image (A) showing complete occlusion of the distal left brachial artery (BA), proximal radial artery (RA), and ulnar artery (UA). Preprocedure digital subtraction angiography (DSA) image (B) showing complete occlusion of the distal left BA, proximal RA, and UA with the reformation of the distal RA and UA from the multiple collaterals (white arrow) around the elbow joint. Postprimary rheolytic thrombectomy: DSA image (C) showing partial success in the form of minimal residual thrombus in the distal BA with no residual thrombus in proximal RA. However, the UA occlusion persisted. Postcatheter-based thrombolysis with secondary interval rheolytic thrombectomy: DSA image (D) showing complete success with normal BA, RA, and UA opacification with no residual thrombosis.
Zoom
Fig. 4 Computed tomography coronal image (A) showing complete occlusion of the axillary artery (AA), brachial artery(BA), radial artery (RA), and ulnar artery (UA) with visualization of a few collaterals. Preprocedure digital subtraction angiography (DSA) image (B) showing complete occlusion of the right upper limb arteries beyond the subclavian artery (SA). Postprimary rheolytic thrombectomy: DSA images (C, D) showing faint opacification of AA and proximal BA with nonopacification of the distal BA, RA, and UA. Vertebral artery (VA). Postcatheter-based thrombolysis with secondary interval rheolytic thrombectomy: DSA images (E, F) showing complete success with normal opacification of the AA, BA, RA, and UA with minimal residual thrombosis in AA.
Zoom
Fig. 5 Computed tomography coronal image (A) showing acute short-segment complete occlusion of the distal left common femoral artery (CFA) with partial thrombus in the proximal superficial femoral artery (SFA). There is complete acute thrombosis of the entire popliteal artery (PA), anterior (ATA), and posterior tibial (PTA) arteries. Preprocedure digital subtraction angiography (DSA) image (B) showing a complete thrombus in the left distal CFA with partial thrombus in the proximal SFA; Preprocedure DSA image (C) showing an abrupt cutoff at the junction of the SFA and PA suggesting thrombus. Postprimary rheolytic thrombectomy: DSA image (D) showing complete success in the form of minimal residual thrombus in the distal CFA with no residual thrombus in proximal SFA. However, the PA, ATA, and PTA occlusion persisted, suggesting failure (E).
Zoom
Fig. 6 Postcatheter-based thrombolysis with secondary interval rheolytic thrombectomy: digital subtraction angiography images (AD) showing complete success with normal opacification of the common femoral artery (CFA), superficial femoral artery (SFA), popliteal artery (PA), anterior artery (ATA), and posterior tibial artery (PTA) with no residual thrombosis.