Off-pump CABG with synchronized arterial flow ensuring system.
OBJECTIVE
We developed a synchronized, arterial-flow, ensuring system to perform coronary anastomoses safely without any ischemia-related event.


METHODS
Arterial blood is removed from the femoral artery. The resulting blood passes a switching valve and is pumped out to a syringe pump. This pump controller provides pulsatile arterial blood flow synchronized with the diastolic phase on an electrocardiogram. The arterial blood is perfused to the coronary artery through a fine flexible cannula during anastomosis.


RESULTS
From February 1999, 524 consecutive patients were operated on using the synchronized arterial flow ensuring system. Mean duration for each anastomosis was 7.6 +/- 3.3 minutes (range, 4 to 20 min). There were no intraoperative fatal arrhythmias, ventricular arrhythmias, or short-run or hemodynamic deterioration during anastomoses. No hospital death was observed, and postoperative myocardial infarction occurred in 2 patients (0.4%). Postoperative angiography showed a 98.1% patency rate.


CONCLUSIONS
The early clinical and angiographical results for off-pump CABG with the synchronized arterial flow ensuring system were excellent without mortality. We believe that off-pump CABG can be more safely performed using the synchronized arterial flow ensuring system based on our favorable results.
Watanabe
Go
G
Department of General and Cardiothoracic Surgery, Kanazawa University School of Medicine, Kanazawa, Japan. go@med.kanazawa-u.ac.jp
Kamiya
Hiroyuki
H
Nagamine
Hiroshi
H
Tomita
Shigeyuki
S
Koshida
Yoshinao
Y
Nishida
Satoshi
S
Ohtake
Hiroshi
H
Arai
Sadahiko
S
Yasuda
Tamotsu
T
D000368:Aged; D017023:Coronary Angiography; D001026:Coronary Artery Bypass / Q000295:instrumentation* / Q000379:methods; D005260:Female; D006801:Humans; D007432:Intraoperative Period; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D016896:Treatment Outcome