Off-pump CABG with synchronized arterial flow ensuring system

Go Watanabe, Hiroyuki Kamiya, Hiroshi Nagamine, Shigeyuki Tomita, Yoshinao Koshida, Satoshi Nishida, Hiroshi Ohtake, Sadahiko Arai, Tamotsu Yasuda

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


Purpose. We developed a synchronized, arterial-flow, ensuring system to perform coronary anastomoses safely without any ischemia-related event. Description. 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. Evaluation. 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.

Original languageEnglish
Pages (from-to)1893-1897
Number of pages5
JournalAnnals of Thoracic Surgery
Issue number5
Publication statusPublished - Nov 2005

ASJC Scopus subject areas

  • Surgery
  • Pulmonary and Respiratory Medicine
  • Cardiology and Cardiovascular Medicine


Dive into the research topics of 'Off-pump CABG with synchronized arterial flow ensuring system'. Together they form a unique fingerprint.

Cite this