Postoperative Hemorrhagic Complications Within 24 Hours After Laparoscopic Sleeve Gastrectomy

Overview

This retrospective study analyzed 463 patients undergoing laparoscopic sleeve gastrectomy (LSG) to evaluate the impact of early postoperative bleeding within 24 hours on long-term clinical outcomes. Early bleeding occurred in 5.8% of patients and was assessed for associations with complications such as refractory vomiting, constipation, GERD, nutritional deficiencies, gastric stricture, muscle wasting, and sarcopenia over at least 12 months.

Background

Laparoscopic sleeve gastrectomy is a widely used minimally invasive bariatric surgery for severe obesity with a high success rate. Early postoperative bleeding, often due to inadequate coagulation of microvessels along the staple line or gastric wall, can cause hemodynamic instability and may necessitate transfusions or reoperation. While early bleeding complications are recognized, their long-term effects on gastrointestinal symptoms, nutritional status, and muscle health remain unclear. This study aimed to clarify these late-term outcomes in patients experiencing bleeding within the first 24 hours post-LSG.

Data Highlights

Key Findings

• Early postoperative bleeding occurred in 27 of 463 patients (5.8%) undergoing LSG.
• Bleeding was defined by clinical, radiological, or endoscopic evidence within 24 hours, including significant drainage, hemoglobin drop ≥3 g/dL, or need for transfusion/reoperation.
• Long-term complications evaluated included refractory vomiting, constipation, GERD, nutritional deficiencies, gastric stricture, muscle wasting, and sarcopenia.
• Persistent vomiting was defined as ≥3 episodes/week for ≥3 months unresponsive to standard antiemetics.
• Constipation diagnosis was based on Rome IV criteria: <3 stools/week, straining, or hard stools.
• Muscle loss was assessed by bioelectrical impedance analysis, with ≥5% decrease considered significant; sarcopenia diagnosis followed EWGSOP2 criteria.

Clinical Implications

Early detection and management of bleeding within 24 hours after LSG are critical to prevent hemodynamic instability and reduce the risk of long-term complications. Clinicians should monitor for gastrointestinal symptoms and nutritional deficiencies during follow-up, especially in patients with early bleeding. Regular assessment of muscle mass and strength is recommended to identify and address sarcopenia in this population.

Conclusion

Early postoperative bleeding following laparoscopic sleeve gastrectomy, though infrequent, may influence long-term clinical outcomes including gastrointestinal symptoms and muscle health. Vigilant perioperative care and extended follow-up are essential to optimize recovery and mitigate late complications.

References

1. 1 -- Bariatric surgery and LSG success rates
2. 2,3 -- Causes of early postoperative bleeding
3. 4,5 -- Consequences of early bleeding
4. 6,7 -- Diagnosis of GERD post-LSG