Postoperative Outcomes and Complications After Laparoscopy-assisted Pylorus-preserving Gastrectomy for Early Gastric Cancer

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Abstract

Objective:

Laparoscopy-assisted pylorus-preserving gastrectomy (LAPPG) was introduced as a function-preserving and minimally invasive operation for early gastric cancer (EGC) in Japan. This study investigated the postoperative outcomes, complications, and associated risk factors of the procedure.

Methods:

From January 2005 to December 2009, 307 patients with EGC diagnosed before surgery underwent LAPPG. The postoperative outcomes and complications were assessed in this study. Postoperative complications were classified according to the Clavien-Dindo classification of surgical complications, and risk factors related to complications were analyzed.

Results:

The mean operation time for LAPPG was 229.4 ± 47.5 minutes and estimated blood loss was 49.1 ± 62.0 mL. The mean total number of dissected lymph nodes was 31.6 ± 10.4, with nodal involvement observed in 25 patients (8.5%). The preoperative diagnostic accuracy of EGC was 93.2%. Complications developed in 53 patients (17.3%), and major complications, classified as grades greater than Clavien-Dindo classification IIIa, were observed in 4 patients (1.3%). The most frequent complication was gastric stasis, occurring in 19 patients (6.2%). Body mass index (BMI) and surgical experience of LAPPG were identified as significant risk factors of postoperative complications. Body mass index was related to severity of the complications. The patients' serum total protein and albumin did not change significantly after surgery.

Conclusions:

Laparoscopy-assisted pylorus-preserving gastrectomy is a safe operation with excellent postoperative outcomes in terms of minimized major complications based on the Clavien-Dindo classification in patients with EGC in the middle third of the stomach. To prevent postoperative complications, surgeons need to ensure an extra leaning period for LAPPG, and LAPPG should be performed cautiously in patients with high BMI.

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