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Related Experiment Video

Updated: May 24, 2025

Author Spotlight: Recent Advancements in Reoperative Foregut Surgery

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Published on: September 22, 2023

Postoperative Outcomes Following Preweekend Surgery.

Sanjana Ranganathan¹, Carlos Riveros¹, Yusuke Tsugawa^2,3

¹Department of Urology, Houston Methodist Hospital, Houston, Texas.

JAMA Network Open

|March 4, 2025

Summary

This summary is machine-generated.

Patients undergoing surgery before the weekend face higher risks of death, readmission, and complications. This study highlights the weekend effect in surgical care, emphasizing the need for consistent quality care.

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Area of Science:

Health Services Research
Surgical Outcomes
Patient Safety

Background:

The weekend effect suggests increased adverse outcomes for patients receiving care on weekends.
Limited research comprehensively examines the impact of weekend postoperative care on surgical outcomes in a broad patient population.

Purpose of the Study:

To investigate differences in short-term and long-term postoperative outcomes for patients undergoing surgery immediately before versus after a weekend.

Main Methods:

A population-based, retrospective cohort analysis of adult patients in Ontario, Canada, undergoing common surgical procedures between 2007 and 2019.
Compared outcomes (death, readmission, complications) at 30 days, 90 days, and 1 year for surgeries performed pre-weekend versus post-weekend.
Utilized multivariable generalized estimating equations to analyze the association between day of surgery and outcomes, adjusting for covariates.

Main Results:

Over 429,000 patients were analyzed, with 46.5% undergoing surgery before the weekend and 53.5% after.
Patients operated on before the weekend had a significantly higher risk of the composite outcome of death, complications, and readmissions at 30 days, 90 days, and 1 year.
Increased odds of mortality were observed in the pre-weekend surgery group at all measured time points (30 days, 90 days, 1 year).

Conclusions:

Surgery performed immediately before the weekend is associated with significantly increased risks of complications, readmissions, and mortality compared to surgery after the weekend.
Further research is required to identify care variations contributing to these disparities.
Ensuring consistent, high-quality patient care irrespective of the day of the week is crucial.