Background: Small bowel obstruction (SBO) arises on various backgrounds, and the surgical procedure is often modified intraoperatively as needed. Single-incision laparoscopic surgery (SILS) is less invasive than conventional multiport laparoscopic surgery (MPS) and reported to be equally safe and efficient. We have been applying SILS to SBO requiring surgical treatment, and we conducted a retrospective study to clarify the role of SILS in the management of SBO.
Methods: Thirty-four consecutive patients were identified for inclusion in the study through a review of hospital records of patients having undergone surgery for SBO between May 2013 and June 2018. Patients with tumor- or hernia-related SBO were excluded. We also identified, for comparison, a group of patients who had undergone open surgery for SBO during the preceeding 5-year period. The primary study endpoint was the SILS completion rate, and analyses were performed to identify risk factors for conversion to open surgery and perioperative complications.
Results: The SILS completion rate was 70.6% (24/34 patients), with conversion open surgery required for the remaining 10 (29.4%) patients. Conversion was necessitated by limited working space in 5 (50%) patients, discovery of massive necrosis in 3 (30%), and non-detection of the responsible lesion in 2 (20%). Univariable analysis showed an American Society of Anesthesiologists Physical Status score (p = 0.020) and severe intra-abdominal adhesions (p = 0.007) to be risk factors for conversion. Conversion to open surgery (vs complete SILS) was significantly associated with increased operation time (p = 0.018), blood loss (p = 0.021), postoperative stay (p = 0.010), and postoperative complications (p = 0.004). Open surgery was significantly associated with increased postoperative stay (p = 0.026) and postoperative complications (p = 0.011).
Conclusion: SILS appears to be a reasonable surgical treatment option for selected patients with SBO.
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