Risks Complications & Long-Term Success after Bariatric Surgery

Bariatric surgery can be a powerful tool for treating obesity, but like any surgical procedure, it comes with potential risks and requires an active commitment to recovery and long-term care. 

During a recent Bariatric Friday episode, host Kemal Erkan spoke with Dr. Isaias Irgau about bariatric surgery risks and complications, how patients can recognize warning signs, and what they can do before and after surgery to support a safe recovery and long-term success. 

What Is Normal After Bariatric Surgery? 

Fatigue, weakness, soreness, changes in appetite, and general discomfort can all be expected during the early stages of bariatric surgery recovery. 

One of the most useful ways to determine whether recovery is progressing normally is to look for improvement over time. 

As Dr. Irgau explained, patients should generally feel a little better each day. If symptoms are instead getting worse, that may be a reason to contact the surgical team. 

Warning signs that should not be ignored include worsening abdominal pain, fever, rapid heart rate, difficulty breathing, chest pain, persistent nausea or vomiting, dizziness, or swelling and pain in the legs that could indicate a blood clot. 

When in doubt, patients should contact their healthcare team. 

Reducing Bariatric Surgery Risks Starts Before Surgery 

Preventing complications begins well before the operation itself. 

Patients may receive specific instructions regarding smoking cessation, blood sugar control, diet, laboratory abnormalities, sleep apnea testing, and medical clearances. Following these instructions helps the surgical team identify and manage potential risks before surgery. 

Dr. Irgau emphasized that these recommendations are not simply extra steps. Preoperative screening and preparation are designed to make surgery and recovery as safe as possible. 

Dehydration After Bariatric Surgery 

One of the more common problems after bariatric surgery is dehydration. 

Because the stomach is significantly smaller, patients can no longer drink large amounts of fluid at once. They are also eating less food, which means they receive less of the water naturally contained in food. 

The solution is to drink small amounts frequently throughout the day. 

Patients should not wait until they become extremely thirsty. Small, continuous sips and even sucking on ice can help maintain hydration. Patients who cannot meet their fluid goals should contact their surgical team, as intravenous fluids may sometimes be needed. 

Learning How to Eat Again 

Eating and drinking after bariatric surgery requires adjusting habits that may have developed over many years. 

The basic rule Dr. Irgau emphasized was small and slow. 

Patients should take small bites, eat small portions, chew food thoroughly, and avoid drinking too much at one time. Eating or drinking too quickly can create pressure in the smaller stomach and lead to significant discomfort. 

Persistent nausea and vomiting should also be taken seriously because they can quickly contribute to dehydration and may sometimes indicate another complication.