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JAAPA : official journal of the American Academy of Physician Assistants·2023

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Weight regain after bariatric surgery: A framework for management.

Christine G Niedbala¹

¹Christine G. Niedbala is an associate professor of PA studies at Springfield College in Springfield, MA. The author has disclosed no potential conflicts of interest, financial or otherwise.

JAAPA : Official Journal of the American Academy of Physician Assistants

|February 24, 2026

Summary

Postoperative weight gain affects up to 37% of patients after bariatric surgery. Early intervention with lifestyle changes and medications can help manage weight regain and improve health outcomes.

Keywords:

GLP-1 receptor agonists bariatric surgery metabolic surgery obesity weight loss weight regain

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Area of Science:

Metabolic and Bariatric Surgery
Obesity Medicine
Clinical Nutrition

Background:

Obesity is a global health crisis with rising prevalence.
Bariatric surgery is the most effective treatment for severe obesity, offering significant weight loss and comorbidity improvement.
Postoperative weight regain occurs in up to 37% of patients, negatively impacting health and quality of life.

Purpose of the Study:

To review the current understanding of postoperative weight regain after bariatric surgery.
To identify risk factors and strategies for early detection and intervention.
To discuss pharmacologic and surgical options for managing weight regain.

Main Methods:

Literature review of studies on bariatric surgery outcomes and weight regain.
Analysis of factors contributing to weight regain.
Evaluation of treatment modalities including lifestyle modifications, medications, and surgical revision.

Main Results:

Weight regain is associated with comorbidity recurrence and reduced quality of life.
Key management strategies include reinforcing lifestyle changes, mental health assessment, and frequent follow-ups.
Pharmacotherapies like phentermine/topiramate, GLP-1 receptor agonists (liraglutide, semaglutide), and tirzepatide are effective.
Surgical revision may be necessary for some patients.

Conclusions:

Prompt identification and intervention are crucial for managing postoperative weight regain.
A multimodal approach combining lifestyle, pharmacotherapy, and potentially surgical revision is recommended.
Further research is needed to establish formal clinical guidelines for managing weight regain post-bariatric surgery.