When a Good Flap Turns Bad: A Temporal Predictive Model for Free Flap Complications

Area of Science:

• Plastic Surgery
• Microsurgery Outcomes
• Surgical Complications

Background:

• Microsurgical procedures are complex plastic surgery cases with high risks of postoperative complications.
• Understanding the timeline and impact of these complications is crucial for improving reconstructive outcomes.

Purpose of the Study:

• To investigate the temporal progression of complications following microsurgical procedures.
• To assess the risk of acute postoperative complications on subsequent reconstructive results.

Main Methods:

• Utilized the National Surgical Quality Improvement Program database for microsurgery cases.
• Analyzed 30-day postoperative complications stratified into four temporal periods (PODs 0-6, 7-13, 14-20, 21-30).
• Employed multivariate logistic regression to identify predictors of adverse outcomes and reoperation.

Main Results:

• Over 19,500 patients analyzed; 31.5% experienced complications within 30 days.
• Prior complications significantly predicted future adverse outcomes, especially after the first week (p < 0.001).
• Reoperation within two weeks occurred in 13.2% of patients; reoperation indication and timing were key predictors (p < 0.001).

Conclusions:

• Early postoperative complications are significant predictors of later adverse events.
• The timing and reason for reoperation are critical factors influencing future complications after microsurgery.