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Coronary artery surgery results 2005 in Japan

Yukiyasu Sezai1, Yukihiko Orime, Saeki Tsukamoto

  • 11The Chairman of the board, Japanese Association for Coronary Artery Surgery, The Former President of Nihon University, Tokyo, Japan.

Annals of Thoracic and Cardiovascular Surgery : Official Journal of the Association of Thoracic and Cardiovascular Surgeons of Asia
|June 27, 2007
PubMed

Insights

Coronary artery bypass grafting (CABG) in Japan achieved record-low mortality in 2005. The less-invasive off-pump CABG (OPCAB) procedure showed improved outcomes, becoming the preferred method for many patients.

Area of Science:

  • Cardiovascular Surgery
  • Thoracic Surgery
  • Cardiac Surgery Outcomes

Background:

  • Coronary artery bypass grafting (CABG) is a critical intervention for coronary artery disease.
  • Annual surveys track surgical outcomes to identify trends and improvements.
  • The adoption of minimally invasive techniques is a key focus in modern cardiac surgery.

Purpose of the Study:

  • To report the national status and outcomes of coronary artery surgery in Japan for 2005.
  • To analyze trends in isolated CABG versus off-pump CABG (OPCAB).
  • To assess the impact of OPCAB on mortality rates and patient demographics.

Main Methods:

  • Analysis of a national registry of 12,207 coronary artery bypass grafting (CABG) cases performed in Japan from January 1 to December 31, 2005.
  • Comparison of operative mortality rates for isolated CABG and off-pump CABG (OPCAB).
  • Evaluation of patient demographics, including age and graft utilization.

Main Results:

  • Total CABG cases: 12,207; Isolated CABG cases: 9,827.
  • Operative mortality for isolated CABG: 1.91%; Initial elective CABG mortality: 0.89% (record low).
  • Off-pump CABG (OPCAB) accounted for 61.0% of cases (4,936), with improved mortality of 0.60%.
  • Elderly patients (≥70 years) comprised 46.5% of cases; arterial graft utilization was 70%.

Conclusions:

  • Japanese coronary artery surgery outcomes reached historic highs in 2005.
  • Off-pump CABG (OPCAB) is increasingly favored, demonstrating superior and improving mortality rates.
  • The aging patient population and high arterial graft use characterize contemporary CABG surgery.

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