Laparoscopic treatment for perforated gastroduodenal ulcer: direct repair surgical technique
Executive Summary
Perforated peptic ulcer (PPU) remains a high-stakes surgical emergency, accounting for approximately 5% of all abdominal surgical emergencies with mortality rates reaching 30%. While medical advancements have reduced hospitalization for general peptic ulcer disease, the incidence of perforation has remained constant. Modern surgical consensus identifies laparoscopy as the gold standard for hemodynamically stable patients, offering superior postoperative outcomes—including reduced pain and shorter hospital stays—without increasing risks of suture leakage or intra-abdominal collections.
The critical determinant of survival is the time to surgery; every hour of delay reduces the probability of survival by 2.4%. This document synthesizes the technical requirements for laparoscopic direct repair, the selection criteria for appropriate candidates, and the management of complex scenarios such as giant ulcers or concurrent bleeding.
Epidemiology and Clinical Background
Peptic ulcer disease (PUD) affects approximately 4 million people worldwide. Despite the widespread use of proton pump inhibitors and H. pylori eradication therapies, perforated peptic ulcer (PPU) maintains a steady lifetime prevalence of 5%.
Incidence: 1.5–3.0% of the general population; PPU occurs in 2–4% of all peptic ulcers.
Mortality: Ranges from 20% to 30%.
Urgency: Source control is the primary treatment goal. Rapid diagnosis is essential to mitigate the 2.4% survival decrease associated with every hour of surgical delay.
Prognostic Assessment and Patient Selection
Effective management requires early risk stratification using established scoring systems to determine the appropriateness of a minimally invasive approach.
Scoring Systems
PULP Score: Shown to accurately predict 30-day mortality.
Other Metrics: Boey score, American Society of Anesthesiologists (ASA) score, and the Mannheim Peritonitis Index (MPI).
Candidate Selection for Laparoscopy
Laparoscopy is recommended as a first-line approach for hemodynamically stable patients. However, high-risk patients should be considered for initial laparotomy. Contraindications or risk factors for a minimally invasive approach include:
Physiological Status: Shock at admission, ASA score III or IV, or cardiac/pulmonary contraindications to pneumoperitoneum.
Clinical Presentation: Late presentation (>24 hours post-symptom onset).
Scoring Thresholds: Boey score ≥ 2 or PULP score ≥ 8.
Technical Constraints: Large defects (>2.0 cm) or expected "hostile abdomen" (e.g., extensive prior adhesions).
Surgical Technique: Laparoscopic Direct Repair
Preoperative Preparation
Imaging: CT scans are required for stable patients to identify the suspected perforation site and optimize trocar placement.
Therapy: Early empiric broad-spectrum antibiotics are mandatory; routine antifungal therapy is not currently supported by evidence.
Operative Setup and Equipment
The patient is placed supine in a reverse Trendelenburg position (20–30°). The surgeon typically stands between the patient's legs.
Step-by-Step Procedure
Access: An open technique is preferred for the first 12-mm optic trocar at the umbilical area. Pneumoperitoneum is maintained at 10–12 mmHg.
Trocar Triangulation: A 12-mm operating trocar is placed in the left upper quadrant (mid-clavicular line), with a 5-mm trocar placed diametrically opposite on the right to ensure ergonomic triangulation.
Localization: Most ulcers are found in the first part of the duodenum or the gastric antrum. Identification can be aided by air insufflation through a gastric tube or methylene blue injection.
Repair:
Direct Suture: A single-layered running suture using knotless barbed absorbable thread is utilized.
Technique: Full-thickness healthy tissue "bites" are taken longitudinally across the perforation.
Anchoring: The suture is fixed with non-absorbable polymer clips (e.g., Lapra-Ty®).
Omental Patch: Not routine; reserved for friable or edematous edges (Cellan-Jones repair).
Closure and Irrigation: A methylene blue leak test is performed, followed by warm saline irrigation (typically 2–6 liters). Drains are placed near the site and occasionally in the pelvis.
Management of "Difficult" Scenarios
Large and Giant Perforations
For holes exceeding 2.0–2.5 cm with extensive tissue loss, direct suturing may be unfeasible.
Damage Control: Plug the defect with an omental graft rather than attempting direct closure.
Exposure: Use Kocher’s or Cattell-Braasch maneuvers to achieve adequate visualization of large duodenal defects.
Gastrectomy: While traditionally advocated for giant ulcers or suspected malignancy, emergency gastrectomy has higher morbidity. Research suggests omental patch repairs provide comparable perioperative outcomes.
Concurrent Bleeding and Perforation
Gastric Ulcers: Best treated by surgical excision. Wedge resection is suitable for the greater curvature or body. Lesser curvature ulcers are more complex and may require distal gastrectomy (Billroth I/II or Csendes procedure).
Duodenal Ulcers: Require an anterior longitudinal duodenotomy across the pylorus. The bleeding vessel (typically the gastroduodenal artery) is ligated using a figure-of-eight suture. The incision is closed vertically (Heineke-Mikulicz pyloroplasty).
Complication Mitigation: If a distal gastrectomy is performed, Bancroft’s procedure may be used to reinforce the duodenal stump and prevent leakage.
Postoperative Management and Recovery
Adopting Enhanced Recovery After Surgery (ERAS) protocols is essential for optimizing outcomes.
Nasogastric Tube: Generally removed on the first postoperative day.
Nutrition: Early oral feeding is resumed as soon as possible.
Drains: Monitored daily and typically removed by the second postoperative day if no leakage is detected.
Mobilization: Early ambulation is encouraged to return the patient to baseline functioning quickly.
Antibiotics: Discontinued based on the normalization of inflammatory markers (WBC count, C-reactive protein, procalcitonin).
Key Conclusions
The gold standard for treating PPU is the direct repair of the defect, with a strong preference for the laparoscopic approach when the patient is stable and surgical expertise is available. Success relies on rapid surgical intervention, accurate preoperative CT assessment, and a simplified closure technique—such as single-layer barbed suturing—that minimizes operative time in the emergency setting. For large or friable defects, surgeons should prioritize a damage control approach using omental patches over complex definitive reconstructions.
