Association of overlapping surgery with perioperative outcomes Journal Article


Authors: Sun, E.; Mello, M. M.; Rishel, C. A.; Vaughn, M. T.; Kheterpal, S.; Saager, L.; Fleisher, L. A.; Damrose, E. J.; Kadry, B.; Jena, A. B.; for the Multicenter Perioperative Outcomes Group (MPOG)
Contributor: McCormick, P. J.
Article Title: Association of overlapping surgery with perioperative outcomes
Abstract: Importance: Overlapping surgery, in which more than 1 procedure performed by the same primary surgeon is scheduled so the start time of one procedure overlaps with the end time of another, is of concern because of potential adverse outcomes. Objective: To determine the association between overlapping surgery and mortality, complications, and length of surgery. Design, Setting, and Participants: Retrospective cohort study of 66430 operations in patients aged 18 to 90 years undergoing total knee or hip arthroplasty; spine surgery; coronary artery bypass graft (CABG) surgery; and craniotomy at 8 centers between January 1, 2010, and May 31, 2018. Patients were followed up until discharge. Exposures: Overlapping surgery (≥2 operations performed by the same surgeon in which ≥1 hour of 1 case, or the entire case for those <1 hour, occurs when another procedure is being performed). Main Outcomes and Measures: Primary outcomes were in-hospital mortality or complications (major: thromboembolic event, pneumonia, sepsis, stroke, or myocardial infarction; minor: urinary tract or surgical site infection) and surgery duration. Results: The final sample consisted of 66430 operations (mean patient age, 59 [SD, 15] years; 31915 women [48%]), of which 8224 (12%) were overlapping. After adjusting for confounders, overlapping surgery was not associated with a significant difference in in-hospital mortality (1.9% overlapping vs 1.6% nonoverlapping; difference, 0.3% [95% CI,-0.2% to 0.7%]; P =.21) or risk of complications (12.8% overlapping vs 11.8% nonoverlapping; difference, 0.9% [95% CI,-0.1% to 1.9%]; P =.08). Overlapping surgery was associated with increased surgery length (204 vs 173 minutes; difference, 30 minutes [95% CI, 24 to 37 minutes]; P <.001). Overlapping surgery was significantly associated with increased mortality and increased complications among patients having a high preoperative predicted risk for mortality and complications, compared with low-risk patients (mortality: 5.8% vs 4.7%; difference, 1.2% [95% CI, 0.1% to 2.2%]; P =.03; complications: 29.2% vs 27.0%; difference, 2.3% [95% CI, 0.3% to 4.3%]; P =.03). Conclusions and Relevance: Among adults undergoing common operations, overlapping surgery was not significantly associated with differences in in-hospital mortality or postoperative complication rates but was significantly associated with increased surgery length. Further research is needed to understand the association of overlapping surgery with these outcomes among specific patient subgroups. © 2019 American Medical Association. All rights reserved.
Journal Title: JAMA - Journal of the American Medical Association
Volume: 321
Issue: 8
ISSN: 0098-7484
Publisher: American Medical Association  
Date Published: 2019-02-26
Start Page: 762
End Page: 772
Language: English
DOI: 10.1001/jama.2019.0711
PUBMED: 30806696
PROVIDER: scopus
PMCID: PMC6439866
DOI/URL:
Notes: Source: Scopus
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