Postoperative bronchopleural fistula: clinical and experimental study

Area of Science:

• Thoracic Surgery
• Surgical Pathology
• Medical Materials Science

Background:

• Postoperative bronchopleural fistula is a known complication in pulmonary tuberculosis patients undergoing resection.
• Suture material quality for bronchial stump closure is implicated in fistula pathogenesis.

Purpose of the Study:

• To evaluate the impact of suture material type on the incidence of bronchopleural fistula after pulmonary tuberculosis resection.
• To compare the efficacy of silk versus nylon monofilament sutures in preventing postoperative complications.

Main Methods:

• Retrospective analysis of 426 patients who received silk sutures versus 220 patients who received nylon monofilament sutures.
• Comparative statistical analysis of 100 cases for each suture type, controlling for background factors.
• Experimental studies in dogs to assess suture material complications.

Main Results:

• 23 out of 426 patients (5.4%) using silk sutures developed bronchopleural fistula; none of the 220 patients (0%) using nylon monofilament sutures did.
• Postoperative bronchoscopic findings were more favorable in the nylon monofilament group compared to the silk group.
• Canine studies corroborated the lower complication rate with monofilament sutures.

Conclusions:

• Nylon monofilament sutures are superior to silk sutures in preventing bronchopleural fistula after bronchial stump closure in pulmonary tuberculosis surgery.
• Non-irritating, monofilament suture materials like nylon monofilament are recommended for bronchial stump closure to minimize postoperative complications.