CureusFeb 7, 2025

Using GLP-1 Medicines Around Surgery: A Case Study

GLP-1 Therapies Weekly Brief ↗PubMed ↗DOI ↗

Updated Jan 20, 2026

Abstract

A 55-year-old woman resumed a GLP-1 agonist on postoperative day one and later experienced symptoms raising concerns for gastrointestinal complications.

GLP-1 receptor agonists can improve glycemic control and support weight loss but are associated with gastrointestinal side effects.
Current guidelines suggest discontinuing GLP-1 agonists before surgery to minimize risks such as regurgitation and aspiration.
Symptoms of nausea, vomiting, and abdominal pain appeared ten days after reintroducing the GLP-1 agonist, raising concerns for postoperative ileus or small bowel obstruction.
Imaging indicated delayed transit of enteric contrast, initially misinterpreted as a small bowel obstruction, leading to a potential exploratory laparotomy.
The patient's condition improved without surgery, highlighting the diagnostic difficulties in differentiating between gastrointestinal complications and GLP-1-induced delayed gastric motility.
There is a need for improved guidelines on the timing, dosing, and monitoring of GLP-1 agonists in the postoperative setting.

Simplified

Glucagon-like peptide-1 (GLP-1) receptor agonists, initially developed for type 2 diabetes mellitus (T2DM), have demonstrated efficacy in improving glycemic control and promoting weight loss. However, their use is associated with gastrointestinal side effects, including delayed gastric emptying, which can complicate perioperative care. Current guidelines recommend discontinuing GLP-1 agonists before surgery to reduce risks such as regurgitation and aspiration. Despite these preoperative recommendations, guidance on reintroducing these medications postoperatively is sparse. This case study discusses a 55-year-old woman with diabetes and uterine fibroids who underwent an elective total laparoscopic hysterectomy with bilateral salpingectomy. Following surgery, the patient resumed a GLP-1 agonist on postoperative day one without specific instructions. Ten days later, she presented with symptoms of nausea, vomiting, and abdominal pain, raising concerns for postoperative ileus or small bowel obstruction (SBO). Imaging revealed delayed transit of enteric contrast, initially interpreted as SBO, leading to a scheduled exploratory laparotomy. However, subsequent radiographic findings and clinical improvement led to the cancellation of surgery, with the patient recovering under conservative management. This case highlights the diagnostic challenges in distinguishing between postoperative ileus, SBO, and GLP-1-induced delayed gastric motility. The overlap in symptoms and imaging findings underscores the importance of cautious clinical assessment to avoid unnecessary surgical interventions. Additionally, it raises critical questions about the appropriate timing, dosing, and monitoring of GLP-1 agonists in the postoperative period. The case emphasizes the need for robust guidelines on postoperative GLP-1 agonist management. With the growing use of these medications, further research is necessary to determine optimal strategies for their reintroduction after surgery, balancing the benefits of metabolic control with the risks of gastrointestinal complications.

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Competing interests

Human subjects: Consent for treatment and open access publication was obtained or waived by all participants in this study. Campbell University School of Osteopathic Medicine issued approval N/A. Conflicts of interest: In compliance with the ICMJE uniform disclosure form, all authors declare the following: Payment/services info: All authors have declared that no financial support was received from any organization for the submitted work. Financial relationships: All authors have declared that they have no financial relationships at present or within the previous three years with any organizations that might have an interest in the submitted work. Other relationships: All authors have declared that there are no other relationships or activities that could appear to have influenced the submitted work.

PubMed

Using GLP-1 Medicines Around Surgery: A Case Study

Abstract

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