members of The Japanese Society for Cardiovascular Surgery ≤40 years of age to measure their job satisfaction for 9 items : operation, perioperative work, number of hours working or sleeping, board affairs application or renewal of board certification , motivation, salary, days off, quality of life, and mental status. Univariate and multivariate analyses using 16 factors for the work environment age, number of years in practice, gender, subspecialty, board certification in surgery, board certification in cardiovascular surgery, primary practice hospital, workdays and nights on duty in a primary practice setting, workdays and nights on duty outside primary practice, total annual income, overtime work hours, overtime entitlement, gap in overtime work and entitlement, and presence of an intensive care unit ICU managed by ICU physicians were performed to identify the risk factors for dissatisfaction.: The survey was completed by 327 of 1,304 25.1% response rate young members of the Japanese Society for Cardiovascular Surgery. The respondents had an average of 8.5 3.5 years in practice, and 292 89.3% respondents were male. Only 14.2% of the responding young surgeons reported no dissatisfaction in any items. In all items, the young surgeons were most satisfied with operation 34.6% of all responders . Age, years in practice, female gender, board certification in surgery, working at a university hospital, workdays in a primary practice setting, and workdays outside a primary practice setting were identified as significant factors for dissatisfaction, while a subspecialty in vascular surgery, total annual income, board certification in cardiovascular surgery, and the presence of an ICU managed by ICU physicians were identified as significant factors against dissatisfaction in the work environment.: Our analyses of the survey results identified a number of risk factors for dissatisfaction in the work environment among young cardiovascular surgeons. Regarding the quality of medical care, respondents hoped for a reduced burden on surgeons and the establishment of a work-shift system in the cardiovascular department and an interdisciplinary team including an ICU physician. Multidimensional analyses including job satisfaction, rewards as training, and a quantitative evaluation of the quality of medical care will be necessary to clarify the corresponding relationship between consumers and providers of cardiovascular surgery in the work environment. Jpn. J.