GLP-1 medications have become an increasingly common part of patients’ lives, and that matters in the operating room, even when the surgery has nothing to do with weight loss.
Dr. Douglas Forman is a board-certified plastic surgeon at the Plastic Surgery Institute of Washington. When his team asks patients whether they are on a GLP-1 medication during surgical preparation, it is not an incidental question. The answer can have a real impact on how a procedure is planned and how safely it is performed.
Reason 1: Anesthesia Risk
Most patients are familiar with the standard instruction to stop eating and drinking after midnight before surgery. The reason is straightforward ,an empty stomach significantly reduces the risk of aspiration, a serious complication that can occur when stomach contents enter the airway during anesthesia.
For patients on GLP-1 medications, however, this precaution becomes more complicated. GLP-1s slow gastric emptying, meaning food and fluid move through the stomach more slowly than they otherwise would. Even after following standard pre-operative fasting instructions, patients on these medications may still have residual content in their stomach,content that is not visible and cannot be assumed away.
To meaningfully reduce that risk, Dr. Forman typically asks patients to stop taking their GLP-1 medication approximately four to six weeks before surgery. This window allows gastric function to normalize and significantly improves the safety profile of anesthesia.
Reason 2: Delayed Healing
GLP-1 medications have a well-documented anti-inflammatory effect,and in most contexts, that is a benefit. Chronic inflammation is associated with a range of health conditions, and reducing it is generally a positive outcome.
Surgery, however, is a different context entirely.
Inflammation is not just a side effect of a procedure,it is a critical part of how the body heals. It is one of the first and most important stages of tissue repair. There is growing clinical evidence that suppressing the inflammatory response during post-operative recovery can interfere with how well and how efficiently healing proceeds. For surgical patients, that interference is not a minor inconvenience,it can affect outcomes in meaningful ways.
The Bottom Line
If you are on a GLP-1 medication and considering surgery,for any reason,your surgeon needs to know. It is not about judgment, and it has nothing to do with why you are having the procedure. It is about giving your body the best possible conditions to come through surgery safely and heal well on the other side.
At the Plastic Surgery Institute of Washington, pre-operative planning is thorough and individualized. If you are on a GLP-1 and want to understand how it affects your surgical timeline, schedule a consultation with Dr. Forman to discuss the right preparation plan for you.
