Purpose: We describe a “left-posterior approach” in which the important steps in laparoscopic distal pancreatectomy (LDP) for left-sided pancreatic cancer are accomplished in the direction caudal and dorsal to the pancreas. Methods: The patients who underwent LDP with a left-posterior approach at our hospital from January 2016 to April 2020 were reviewed to evaluate the short-term postoperative outcomes. In LDP, we first dissected retroperitoneal tissues above the left renal vein and superior mesenteric artery, yielding the mobilization of the pancreatic body widely. Then, the splenic artery was divided behind the ventrally lifted pancreas as an artery-first approach. The regional lymphadenectomy was performed in an en bloc manner consecutively in the same operative field. The neck of the pancreas was transected with a linear stapler after mobilization of the spleen. Results: In nine patients (five men and four women) aged 76 years (range: 64–82 years), the operative time was 398 min (276–482 min) with the estimated blood loss of 40 ml (0–80 ml). No patients developed grade B/C pancreatic fistula or delayed gastric emptying. Postoperative complications classified as grade III in the Clavien–Dindo classification occurred in one patient (abdominal abscess). The pathology confirmed R0 resection in all patients who had pancreatic cancer (n = 5), IPMNs (n = 3), and high-grade pancreatic intraepithelial neoplasia (PanIN) (n = 1). The number of retrieved lymph nodes was 35 (11–49). Conclusion: The procedure with a left-posterior approach is a rational surgical technique in LDP for left-sided pancreatic cancer.
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