The Potential Risk of Aspiration during Surgery While Taking Ozempic and Other GLP-1 Drugs

Introduction

Ozempic, a widely used glucagon-like peptide-1 (GLP-1) receptor agonists, like Wegovy, Mounjaro and Zepbound have gained popularity for its efficacy in managing type 2 diabetes and weight loss. While its benefits in glycemic control are well-established, there is a growing concern about its potential impact on gastric emptying and the associated risk of aspiration during surgery. This article delves into the mechanisms by which Ozempic, and other GLP-1 receptor agonists in general, may influence gastrointestinal function, particularly gastric emptying, and examines the implications for surgical procedures. Aspiration during surgery is a serious and potentially life-threatening complication that can occur when stomach contents enter the respiratory tract (trachea and lungs) instead of going into the stomach. This can lead to inflammation, infection, compromise respiratory function and even death.

Understanding Ozempic and GLP-1 Drugs

GLP-1 receptor agonists are a class of medications designed to mimic the effects of glucagon-like peptide-1, a naturally occurring hormone that plays a crucial role in glucose homeostasis. Ozempic, with its active ingredient semaglutide, is among the medications in this class. These drugs are known for their ability to lower blood sugar levels, promote weight loss, and improve overall metabolic control in patients with type 2 diabetes.

Mechanism of Action and Gastric Emptying

One of the notable effects of GLP-1 receptor agonists, including Ozempic, is the slowing of gastric emptying. This phenomenon is an intrinsic part of their mechanism of action. GLP-1 receptors are distributed in various tissues, including the stomach, where they regulate the movement and emptying of gastric contents.

When Ozempic is administered, it enhances the secretion of insulin, suppresses glucagon release, and slows down the emptying of the stomach. This delay in gastric emptying is intended to promote satiety, reduce food intake, and contribute to weight loss. However, this effect on gastric motility raises concerns when patients using these medications undergo surgical procedures.

Aspiration During Surgery

Aspiration during surgery is a serious complication that occurs when stomach contents, including gastric juices and food particles, enter the respiratory tract instead of progressing into the small intestine. This can happen when the protective mechanisms preventing the reflux of stomach contents are compromised. In the context of GLP-1 receptor agonists, the delayed gastric emptying poses a potential risk for an increased volume of stomach contents being present at the time of surgery.

When Ozempic is administered, it enhances the secretion of insulin, suppresses glucagon release, and slows down the emptying of the stomach. This delay in gastric emptying is intended to promote satiety, reduce food intake, and contribute to weight loss. However, this effect on gastric motility raises concerns when patients using these medications undergo surgical procedures.

Factors Contributing to Aspiration Risk with Ozempic:

  • GLP-1 receptor agonists, including Ozempic, have been associated with delayed gastric emptying. The inherent pharmacological effect of these drugs leads to a slower transit of food from the stomach to the small intestine. This delay is intended to enhance feelings of fullness and reduce caloric intake.
  • During the fasting period before surgery, patients are instructed to refrain from consuming food or liquids (NPO status). The combination of delayed gastric emptying and the fasting period can result in a larger volume of residual stomach contents, increasing the risk of regurgitation during surgery.
  • The conventional fasting period before surgery is designed to minimize the risk of aspiration by reducing the volume of stomach contents. However, the use of Ozempic may necessitate a reevaluation of fasting protocols.
  • Healthcare providers must consider the individual patient’s response to Ozempic, the duration of fasting, and the potential impact on gastric emptying to tailor preoperative instructions effectively.
  • Individual responses to Ozempic can vary based on factors such as dosage, patient physiology, and the presence of other medical conditions.
  • Patients with pre-existing gastrointestinal conditions, such as gastroparesis or gastroesophageal reflux disease (GERD), may be more susceptible to the effects of delayed gastric emptying associated with GLP-1 receptor agonists.

Mitigation Strategies:

The approach to treating Ozempic-induced bowel obstruction involves a combination of medical, procedural, and, in some cases, surgical interventions. The specific treatment plan depends on the severity of the obstruction and the patient’s overall health.

1. Patient Education: Healthcare providers play a crucial role in educating patients about the potential risks and benefits of Ozempic. Patients should be informed about the importance of adherence to preoperative fasting instructions and the need for open communication with both their endocrinologist and the surgical team.

2. Individualized Preoperative Assessment: Before surgery, a thorough assessment of the patient’s medical history, including weight loss, diabetes management and gastrointestinal health, is essential.

Healthcare providers should consider adjusting the timing of  a surgery of patients taking Ozempic and the extend the duration of fasting based on individual patient characteristics to minimize the risk of delayed gastric emptying.

3. Collaboration Between Endocrinologists and Surgeons: Effective communication between endocrinologists prescribing Ozempic and surgeons is paramount.

Collaborative decision-making is necessary to balance the benefits of glycemic control with the potential risks associated with delayed gastric emptying during surgery.

Ozempic & GLP-1 Use Should be Determined by the Surgeons and Staff, Before a Surgery is Scheduled

While Ozempic and other GLP-1 receptor agonists have demonstrated significant benefits in managing type 2 diabetes and weight loss, their impact on gastric emptying raises important considerations and dangers for individuals undergoing surgery. The potential for delayed gastric emptying and an increased risk of aspiration necessitate a careful and individualized approach to preoperative management. By fostering collaboration between healthcare providers, tailoring preoperative protocols, and providing thorough patient education, it is possible to mitigate the potential risks associated with the use of Ozempic and GLP-1 receptor agonists during and before surgery