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Long-term digital blood flow after radial artery harvesting for coronary artery bypass grafting

Authors
 Hyun-Sung Lee  ;  Youn Jeong Heo  ;  Byung-Chul Chang 
Citation
 EUROPEAN JOURNAL OF CARDIO-THORACIC SURGERY, Vol.27(1) : 99-103, 2005 
Journal Title
 EUROPEAN JOURNAL OF CARDIO-THORACIC SURGERY 
ISSN
 1010-7940 
Issue Date
2005
MeSH
Coronary Artery Bypass/methods* ; Female ; Fingers/blood supply* ; Humans ; Male ; Middle Aged ; Plethysmography/methods ; Pulsatile Flow/physiology ; Radial Artery* ; Regional Blood Flow/physiology ; Thumb/blood supply ; Tissue and Organ Harvesting* ; Ulnar Artery/physiology
Keywords
Radial artery ; Coronary artery bypass conduits
Abstract
OBJECTIVE: The radial artery is widely used as a bypass conduit in coronary artery bypass surgery, but the long-term flow readjustment in the hands and fingers induced by the removal of the radial artery is poorly understood. METHODS: Using pulse-volume-recording plethysmography, digital blood flow was measured semiquantitatively in 24 patients immediately after harvesting of the radial artery for coronary artery bypass grafting (short-term group) and reassessed in 15 of these patients 3 years later (long-term group). Measurements taken from the fingers of the operated arms were evaluated and compared to those taken from the opposite or control arms. The short- and long-term changes in digital blood flow were also compared. RESULTS: Postoperatively, there was an overall decrease in blood flow to all the fingers of the operated arms. There was also evidence of redistribution of digital blood flow favoring the thumb and index finger over the fourth and fifth fingers, with the same distribution pattern seen in the fingers of control arms. Over time, the digital blood flow in operated arms recovered to levels similar to those in control arms. CONCLUSION: The study showed that there was an overall decrease in digital blood flow following radial artery harvesting. The resulting blood supply in the remaining ulnar artery still provided more flow to the thumb and index fingers than to the fourth and fifth fingers, indicating the existence of an autoregulatory mechanism operating to satisfy the physiologic needs of the fingers. The long-term results showed that the overall decrease in distal blood flow immediately after radial artery harvesting was significantly recovered by physiologic adaptation.
Full Text
http://ejcts.oxfordjournals.org/content/27/1/99.long
DOI
10.1016/j.ejcts.2004.10.005
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Thoracic and Cardiovascular Surgery (흉부외과학교실) > 1. Journal Papers
Yonsei Authors
Chang, Byung Chul(장병철)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/147454
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