The relationship between the yearly number of operations and mortality due to intraoperative critical incidents in patients for cardiac surgery: an analysis of annual survey 2001 conducted by the Japanese Society of Anesthesiologists

The number of surgical operations performed has been reported to have a relation with surgical morbidity and mortality. In Japan, however, the relationship between surgical load and outcome has not been elucidated. We investigated this relationship in patients for cardiac surgery using data from the...

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Published inMasui. The Japanese journal of anesthesiology Vol. 52; no. 10; p. 1128
Main Authors Irita, Kazuo, Kawashima, Yasuo, Morita, Kiyoshi, Tsuzaki, Koichi, Seo, Norimasa, Iwao, Yasuhide, Obara, Hidefumi
Format Journal Article
LanguageJapanese
Published Japan 01.10.2003
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Abstract The number of surgical operations performed has been reported to have a relation with surgical morbidity and mortality. In Japan, however, the relationship between surgical load and outcome has not been elucidated. We investigated this relationship in patients for cardiac surgery using data from the 2001 annual survey concerning anesthesia-related critical incidents, conducted by the Committee on Operating Room Safety, Japanese Society of Anesthesiologists. Between January 1, 2001 and December 31, 2001, 43,411 patients for cardiac surgery patients were registered from 486 training hospitals certified by the Japanese Society of Anesthesiologists. Intraoperative critical incidents occurred in 632 of the patients. Of these, 289 patients died within 7 postoperative days. The overall mortality was 66.57 per 10,000 anesthetics. Hospitals were divided into 4 groups according to their annual numbers of cardiac operations: Group A, fewer than 50; Group B, 50-99; Group C, 100-199; Group D, more than 200. Mortality rate was expressed as a mean +/- SD (95% confidence interval). The mortality rates in Group A-D were 107.64 +/- 327.33 (63.47-151.81), 114.42 +/- 168.76 (83.02-145.87), 63.53 +/- 84.35 (48.04-79.01), and 36.97 +/- 52.83 (22.32-51.61) per 10,000 anesthetics, respectively. The yearly number of operations has been shown to affect mortality rate due to intraoperative critical incidents among patients for cardiac surgery in Japan. Hospitals with a small number operations should pay significant attention to improving surgical outcome. These results also suggest that centralization or regionalization of cardiac surgery should be discussed from the socio-economical points as well as patient safety.
AbstractList The number of surgical operations performed has been reported to have a relation with surgical morbidity and mortality. In Japan, however, the relationship between surgical load and outcome has not been elucidated. We investigated this relationship in patients for cardiac surgery using data from the 2001 annual survey concerning anesthesia-related critical incidents, conducted by the Committee on Operating Room Safety, Japanese Society of Anesthesiologists. Between January 1, 2001 and December 31, 2001, 43,411 patients for cardiac surgery patients were registered from 486 training hospitals certified by the Japanese Society of Anesthesiologists. Intraoperative critical incidents occurred in 632 of the patients. Of these, 289 patients died within 7 postoperative days. The overall mortality was 66.57 per 10,000 anesthetics. Hospitals were divided into 4 groups according to their annual numbers of cardiac operations: Group A, fewer than 50; Group B, 50-99; Group C, 100-199; Group D, more than 200. Mortality rate was expressed as a mean +/- SD (95% confidence interval). The mortality rates in Group A-D were 107.64 +/- 327.33 (63.47-151.81), 114.42 +/- 168.76 (83.02-145.87), 63.53 +/- 84.35 (48.04-79.01), and 36.97 +/- 52.83 (22.32-51.61) per 10,000 anesthetics, respectively. The yearly number of operations has been shown to affect mortality rate due to intraoperative critical incidents among patients for cardiac surgery in Japan. Hospitals with a small number operations should pay significant attention to improving surgical outcome. These results also suggest that centralization or regionalization of cardiac surgery should be discussed from the socio-economical points as well as patient safety.
Author Kawashima, Yasuo
Seo, Norimasa
Irita, Kazuo
Tsuzaki, Koichi
Obara, Hidefumi
Morita, Kiyoshi
Iwao, Yasuhide
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Snippet The number of surgical operations performed has been reported to have a relation with surgical morbidity and mortality. In Japan, however, the relationship...
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StartPage 1128
SubjectTerms Anesthesia - mortality
Anesthesia - statistics & numerical data
Anesthesiology
Cardiac Surgical Procedures - mortality
Cardiac Surgical Procedures - statistics & numerical data
Humans
Incidence
Intraoperative Complications - mortality
Japan - epidemiology
Societies, Medical
Time Factors
Title The relationship between the yearly number of operations and mortality due to intraoperative critical incidents in patients for cardiac surgery: an analysis of annual survey 2001 conducted by the Japanese Society of Anesthesiologists
URI https://www.ncbi.nlm.nih.gov/pubmed/14598685
Volume 52
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