Can a patient who has undergone endoscopic sleeve gastroplasty (ESG) experience suture disruption from vomiting?

Can ESG Sutures Break from Vomiting?

Yes, suture disruption can occur after endoscopic sleeve gastroplasty (ESG), and vomiting is a recognized risk factor that may contribute to suture dehiscence, though the exact causal relationship remains incompletely characterized in the literature.

Understanding the Risk

The concern about suture disruption from vomiting after ESG is clinically valid based on several lines of evidence:

Documented Suture Failure

A case series directly documented late suture dehiscence occurring 2 years post-ESG in a patient with persistent dyspepsia and weight regain, requiring conversion to Roux-en-Y gastric bypass 1. This demonstrates that suture failure is a real clinical entity, though the specific contribution of vomiting versus other mechanical factors was not isolated.

Suture Persistence Data

At 12-month follow-up, approximately 83.6% of ESG sutures remain intact, with 70.9% maintaining adequate tension 2. However, this means that 16.4% of sutures fail within the first year, and 45.5% of patients have at least one detached suture (average 1.8 sutures, range 1-3) 2. These failures occur even with normal postoperative courses, suggesting inherent vulnerability to mechanical stress.

High Prevalence of Vomiting

Postoperative nausea and vomiting (PONV) is extremely common after ESG:

• 92.4% of patients experience nausea or abdominal pain requiring medication control during the first postoperative week 3
• 70% of emergency department visits within 30 days are for PONV 4
• One-third to two-thirds of bariatric patients report postoperative vomiting 5

Clinical Implications and Risk Mitigation

Immediate Post-Procedure Period (First 2 Weeks)

This is the highest-risk window when sutures are under maximum stress and tissue healing is incomplete:

• Aggressive antiemetic prophylaxis is essential 4. The ERASE protocol demonstrates that multimodal PONV management reduces 30-day readmissions by 58.5% 4
• Consider combination therapy with ondansetron plus dexamethasone for patients with multiple PONV risk factors (female sex, history of motion sickness, opioid use) 6
• Proton pump inhibitor therapy should be initiated to reduce gastric acid secretion and minimize irritation 7

Warning Signs of Suture Disruption

Patients should be monitored for:

• Persistent or worsening vomiting beyond the first week despite antiemetic therapy 8
• Recurrent weight gain after initial successful weight loss 1
• Persistent dyspepsia or change in symptom pattern 1
• Inability to tolerate solid foods that were previously tolerated

When Vomiting Persists

If vomiting continues for >2-3 weeks, several actions are warranted:

1. Thiamin supplementation should be initiated immediately to prevent neurological complications (Wernicke's encephalopathy) 8, 9
2. Maintain adequate hydration - this is critical as dehydration compounds the problem 8
3. Endoscopic evaluation may be indicated to assess for:
   • Suture line integrity
   • Downstream stenosis (which increases intragastric pressure and suture stress) 10
   • Gastric ulceration or inflammation 5

Comparative Context

While ESG-specific data on vomiting-induced suture failure is limited, extrapolation from other bariatric procedures provides context:

• After RYGB and sleeve gastrectomy, vomiting is recognized as a clinical sign of potential staple line complications 11
• Frequent vomiting after restrictive procedures can indicate obstruction, stenosis, or anastomotic issues requiring evaluation 5, 8
• The key difference with ESG is that sutures (rather than staples) are inherently more vulnerable to mechanical disruption from repetitive increases in intragastric pressure

Practical Management Algorithm

For patients with persistent vomiting after ESG:

1. Days 1-7: Expected symptom, manage with scheduled antiemetics and PPIs
2. Week 2-3: If vomiting persists, intensify antiemetic regimen and ensure hydration
3. Beyond 3 weeks:
   • Start thiamin supplementation
   • Consider upper GI contrast study or endoscopy
   • Evaluate for suture dehiscence or stenosis
4. If weight regain occurs: Endoscopic reassessment is mandatory to evaluate suture integrity 1

Critical Caveat

The absence of major adverse events in large series (0% mortality in 1000 consecutive patients) 3 should not create false reassurance about suture durability. Suture dehiscence may present insidiously with gradual weight regain rather than acute complications, and may not be detected unless specifically sought 1, 2.

The bottom line: Minimize vomiting aggressively in the early postoperative period, maintain high clinical suspicion for suture failure in patients with persistent symptoms or weight regain, and recognize that some degree of suture attenuation occurs in nearly half of patients by one year regardless of symptomatology.