Thorac Cardiovasc Surg 2013; 61(08): 663-668
DOI: 10.1055/s-0032-1331464
Original Cardiovascular
Georg Thieme Verlag KG Stuttgart · New York

Hemodynamic Effects of Left Upper Extremity Arteriovenous Fistula on Ipsilateral Internal Mammary Coronary Artery Bypass Graft

Isa Coskun
1   Department of Cardiovascular Surgery, Baskent University Faculty of Medicine, Adana, Turkey
,
Yucel Colkesen
2   Department of Cardiology, Baskent University, Adana, Turkey
,
Hakan Altay
2   Department of Cardiology, Baskent University, Adana, Turkey
,
Ugur Ozkan
3   Department of Radiology, Baskent University, Adana, Turkey
,
O. Saim Demirturk
1   Department of Cardiovascular Surgery, Baskent University Faculty of Medicine, Adana, Turkey
,
Oner Gulcan
1   Department of Cardiovascular Surgery, Baskent University Faculty of Medicine, Adana, Turkey
,
Murat Guvener
1   Department of Cardiovascular Surgery, Baskent University Faculty of Medicine, Adana, Turkey
› Institutsangaben
Weitere Informationen

Publikationsverlauf

29. März 2012

18. September 2012

Publikationsdatum:
23. Januar 2013 (online)

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Abstract

Objective Arteriovenous fistula (AVF) in patients undergoing hemodialysis (HD) may cause coronary left internal mammary artery (IMA) steal. This phenomenon was demonstrated by few prospective studies with limited number of patients and case reports. We aimed to demonstrate with a relatively larger patient population that the AVF may cause ipsilateral IMA steal.

Methods We included 22 prospective patients undergoing HD who had left IMA to left anterior descending artery graft and left upper limb AVF. Right IMA was taken as control. Flows were assessed by using color Doppler ultrasonography.

Results The mean age was 57.8 ± 9 years. Statistically nonsignificant increases in AVF flow and decreases in left IMA flow were observed during HD compared with pre-HD. Moreover, fistula localization did not affect median left IMA flows (for peak systolic velocity [PSV] 43.7 versus 70 cm/s, respectively; p = 0.7, and for end diastolic velocity [EDV] 3.4 versus 6.5 cm/s, respectively; p = 0.7). We have not detected significant difference in left IMA flows during HD (median values of PSV 58.4 versus 68.4 cm/s, respectively; p = 0.1, and EDV 6.4 versus 4.4 cm/s, respectively; p = 0.08). Only three patients experienced dialysis-induced reduction of ipsilateral IMA flow that was accompanied by evidence of hypokinesia of the anterior left ventricular wall without clinical angina.

Conclusions Hemodynamically affected left IMA flow by ipsilateral upper extremity AVF may cause steal phenomenon. Hemodynamic differences between left and right IMAs in patients undergoing HD via left wrist and brachial fistulae are limited.