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Surgical Swine Model of Chronic Cardiac Ischemia Treated by Off-Pump Coronary Artery Bypass Graft Surgery
Published on: March 27, 2018
Does the duration of surgery affect outcomes in patients undergoing coronary artery bypass grafting?
Danny Chu1, Faisal G Bakaeen, Xing Li Wang
1Division of Cardiothoracic Surgery, Baylor College of Medicine, Houston, TX, USA. dchumd@gmail.com
Insights
Longer coronary artery bypass grafting (CABG) surgery independently predicts longer surgical intensive care unit (SICU) stays, but does not impact short-term survival. Reducing surgical time may improve hospital resource efficiency.
Area of Science:
- Cardiovascular Surgery
- Surgical Outcomes Research
Background:
- Numerous factors influence coronary artery bypass grafting (CABG) outcomes.
- The independent impact of surgical duration on CABG outcomes requires further investigation.
Purpose of the Study:
- To determine if surgical duration independently predicts outcomes in patients undergoing CABG.
- To analyze the association between operative time and post-CABG patient recovery metrics.
Main Methods:
- Retrospective review of data from 337 consecutive CABG patients.
- Data collected between January 2005 and December 2006.
- Statistical analysis including univariate and multivariate logistic regression.
Main Results:
- Surgical duration positively correlated with surgical intensive care unit (SICU) stay and ventilator support in univariate analysis.
- Multivariate analysis confirmed surgical duration as an independent predictor of SICU length of stay (P = .01).
- Each additional 30 minutes of surgery was associated with 4.32 extra hours in the SICU; no significant impact on survival was observed.
Conclusions:
- Surgical duration is an independent predictor of extended SICU stays following CABG.
- While not affecting short-term survival, reducing operative time may enhance hospital resource utilization.
- Optimizing surgical efficiency is recommended for improved patient flow and resource management.
Background:
Numerous predictors of coronary artery bypass grafting (CABG) outcomes have been identified. We aimed to determine whether the duration of surgery independently predicts outcome in patients undergoing CABG.
Methods:
We retrospectively reviewed data from 337 patients (mean age 62 +/- 7 years) who underwent CABG consecutively at our institution between January 2005 and December 2006.
Results:
Duration of surgery correlated positively with length of both surgical intensive care unit (SICU) stay (r = .147, P = .004) and ventilator support (r = .097, P = .038) in univariate analysis, but only with length of SICU stay (P = .01) in a multivariate logistic regression after confounding factors were controlled for in the model. The regression coefficient was .006; every additional 30 minutes of surgery time was associated with 4.32 more hours of SICU stay. Duration of surgery was not associated with survival (P > .05).
Conclusions:
Although duration of surgery did not affect short-term survival after CABG, surgical duration independently predicted length of SICU stays. Efforts to reduce the length of operations may promote more efficient use of hospital resources.
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