Masanori Sato

Sapporo Kosei General Hospital, Sapporo, Hokkaidō, Japan

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Publications (2)3.1 Total impact

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    ABSTRACT: This study assessed the acceptability of laparoscopy-assisted gastrectomy (LAG) for patients with previous intra-abdominal surgery (PIS). Sixteen patients with PIS had undergone LAG; 9 of laparoscopy-assisted distal gastrectomy, 2 of laparoscopy-assisted total gastrectomy and 5 of laparoscopy-assisted remnant gastrectomy (LARG). Difficulty, safety, and accuracy of LAG were compared between patients with PIS and with no previous intra-abdominal surgery. An independent group of 11 cases with open remnant gastrectomy (ORG) was used for comparing with LARG. No significant difference was observed in conversion rate, intraoperative complication, operation time, blood loss, dissected lymph nodes, postoperative complications and hospital stay between PIS, and no PIS. There was no significant difference in operative time, dissected lymph nodes, and postoperative complications between LARG and ORG. Blood loss was lesser and postoperative hospital stay was shorter in LARG than in ORG. LAG for patients with PIS is acceptable.
    Surgical laparoscopy, endoscopy & percutaneous techniques 12/2009; 19(6):431-5. · 0.88 Impact Factor
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    ABSTRACT: There is a consensus on the indication of laparoscopy-assisted distal gastrectomy (LADG) for early gastric cancer that needs D1 + alpha or D1 + beta lymph node dissection. However, many gastrointestinal surgeons consider D2 lymph node dissection in LADG to be difficult, therefore, only a few medical institutions have performed D2 lymph node dissection in LADG. We examined the safety and accuracy of D2 dissection in LADG by comparing with open distal gastrectomy (ODG), as the first step to operate on advanced gastric cancer. The study population comprised 53 and 67 patients who underwent D2 dissection in LADG or ODG, respectively; with the diagnosis of preoperative depth grade SM, between 2004 and 2006. In D2 lymph node dissection, difficult points are dissections of lymph node along the superior mesenteric vein (No. 14v), along the hepatic artery (No. 12a), and along the proximal splenic artery (No. 11p). We performed these lymph nodes dissection in a fixed process, which was achieved through all improvements. No significant difference was observed in age, sex, American Society of Anesthesiology (ASA) classification, body mass index (BMI), and operative time between two groups. Bleeding volume was significantly lower in LADG (96.5 +/- 126.3 ml) than in ODG (221.9 +/- 174.8 ml). There was no significant difference in number of dissected lymph nodes between ODG (44.8 +/- 15.6) and LADG (49.2 +/- 16.1), with no significant difference in degree of pathological stage. The postoperative complication rate was 16.4% for ODG and 5.7% for LADG, and postoperative hospital stay was significantly shorter for LADG (16.7 +/- 5.6 days) than for ODG (21 +/- 11.4 days). D2 dissection in LADG can be performed without problems with safety and accuracy, if the surgical team is skilled in the procedures of LADG.
    World Journal of Surgery 08/2008; 32(11):2366-70. · 2.23 Impact Factor