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Updated: Jul 19, 2026
An Isolated Working Heart System for Large Animal Models
Published on: June 11, 2014
[System Changes to Carry Out Working-style Reforms at Department of Cardiovascular Surgery of the Local University
Hiromasa Nakamura1, Atsuyuki Mitsuisi, Keisuke Yoshida
1Department of Cardiovascular Surgery, Kochi University, Nankoku, Japan.
Background:
The "work style reform" started in April 2024. Our hospital has actively begun implementing task shifts. This study aimed to investigate changes in the surgical outcomes and work hours of cardiovascular surgeons resulting from the introduction of task shifting.
Patients And Methods:
A comparative study was conducted between January 2020 and December 2022, when task shifting was actively introduced, on cardiac surgery outcomes in patients aged 75 years and older, and perioperative risk scores( EuroSCOREⅡ, JapanSCORE2). Changes in the working status of the cardiovascular surgeons were also examined.
Results:
In total, 95 patients aged≥75 years who underwent cardiac surgery were enrolled. Euro-SCOREⅡ was 3.9% and the mortality rate by JapanSCORE2 was 3.7%, respectively. One case of 30-day mortality and four hospital deaths occurred. The median intensive care unit( ICU) and postoperative hospital stays were 3.0 and 24 days. Given the introduction of semiclosed ICU, medical work office assistants, and nurse practitioners, the hospital stay of cardiac surgeons decreased from 207 to 185 hours, and overtime work decreased from 64 to 41 hours.
Conclusion:
Our efforts toward "work style reform" can currently reduce overtime without degrading surgical outcomes. However, there is still room for improvement, and further reforms are necessary.
