The Atypical Presentation and Delayed Timing of Anastomotic Leak in Patients Who Undergo Cytoreducation and Hyperthermic Intraperitoneal Chemotherapy.

Publication Title

The Journal of surgical research

Document Type

Article

Publication Date

10-9-2025

Keywords

washington; swedish

Abstract

Introduction: Anastomotic leak (AL) can be a disproportionately devastating complication following cytoreductive surgery (CRS)/hyperthermic intraperitoneal chemotherapy (HIPEC) due to its effect on both perioperative and oncologic outcomes. Anecdotally, patients who underwent CRS/HIPEC present in an atypically fashion compared to those who undergo non-CRS/HIPEC gastrointestinal surgery, but this has never been rigorously studied.

Methods: The records for all consecutive patients who underwent CRS/HIPEC with curative intent from prospectively maintained databases at two high-volume centers were retrospectively reviewed. Those who experienced AL were identified and dichotomized into early (

Results: On median postoperative day (POD) 15, 6.1% of patients experienced AL . Demographics, disease histology, risk factors for AL, receipt of neoadjuvant therapy, and extent of surgery were well-balanced. A higher proportion of small bowel anastomoses leaked in

Conclusions: Patients who experience AL after CRS/HIPEC often present in an atypical manner compared to those who undergo non-CRS/HIPEC gastrointestinal surgery. These findings are important to any practitioner who encounters CRS/HIPEC patients given that early recognition of AL is crucial to mitigating subsequent sequelae that can negatively impact both short-term perioperative and long-term oncologic outcomes in this uniquely challenging population.

Area of Special Interest

Cancer

Area of Special Interest

Digestive Health

Specialty/Research Institute

Oncology

Specialty/Research Institute

Gastroenterology

Specialty/Research Institute

Surgery

DOI

10.1016/j.jss.2025.09.037

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