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Meta-analysis of short-term outcomes after laparoscopy-assisted distal gastrectomy

World Journal of Gastroenterology 2006年第47期12卷 7676-7683页

作者： Shunsuke Hosono yuichi arimoto Hiroshi Ohtani Yoshitetsu Kanamiya Department of Surgery Osaka City Sumiyoshi Hospital 1-2-16 Higashi-Kagaya Suminoe-ku Osaka 559-0012 Japan

AIM： To elucidate the current status of laparoscopyassisted distal gastrectomy （LADG） with regard to its short-term outcomes by comparing it with conventional open distal gastrectomy （CODG）.METHODS： Original articles published from 3anuary 1991 to August 2006 were searched in the MEDLINE, EMBASE, and Cochrane Controlled Trials Register. Clinical appraisal and data extraction were conducted independently by 2 reviewers. A meta-analysis was performed using a random effects model.RESULTS： Outcomes of 1611 procedures from 4 randomized controlled trials and 12 retrospective studies were analyzed. Compared to CODG, LADG was a longer procedure （weighted mean difference [WMD] 54.3; 95% confidence interval [CI] 38.8 to 69.8; P 〈 0.001）, but was associated with a lower associated morbidity （odds ratio [OR] 0.54; 95% CI 0.37 to 0.77; P 〈 0.001）; this was most significant for postoperative ileus （OR 0.27; 95% CI 0.09 to 0.84; P = 0.02）. There was no significant difference between the two groups in anastomotic, pulmonary, and wound complications and mortality. Duration from surgery to first passage of flatus was faster （WMD -0.68; 95% CI -0.85 to -0.50; P 〈 0.001） and the frequency of additional analgesic requirement （WMD -1.36; 95% CI -2.44 to -0.28; P = 0.01）, and duration of hospital stay （WMD -5.51; 95% CI -7.61 to -3,42; P 〈 0,001） were significantly lower after LADG, However, a significantly higher number of lymph nodes were dissected by CODG （WMD -4.35; 95% CI -5.73 to -2.98; P 〈 0.001）. CONCLUSION： LADG for early gastric cancer is associated with a lower morbidity, less pain, faster bowel function recovery, and shorter hospital stay.

关键词： Laparoscopic gastrectomy Gastric cancer Postoperative complications Mortality Lymphadenectomy Meta-analysis

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Three-dimensional computed tomography in laparoscopic surgery for coiorectal carcinoma

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World Journal of Gastroenterology 2005年第44期11卷 6932-6935页

作者： Hiroshi Ohtani Kohei Ohta yuichi arimoto Eui-Chul Kim Hiroko Oba Kenji Adachi Shoichi Terakawa Mitsuo Tsubakimoto Department of Surgery Department of Gastroenterology Department of Radiology

AIM： To evaluate the usefulness of three-dimensional computed tomography （3DCT） in laparoscopic surgery for colorectal carcinoma. METHODS： Seventy-two patients with colorectal cancer who underwent curative operation at our hospital were enrolled in this study. They were classified into two groups by operative procedures. Sixteen patients underwent laparoscopic surgery, laparoscopic group （LG）, while 56 patients underwent conventional open surgery, open group （OG）. At our institution, contrast-enhanced CT is routinely performed as part of intra-abdominal screening and the 3D images of the major regional vessels are described. We have previously described about the preoperative visualization of the inferior mesenteric artery （IMA） by 3DCT. This time we newly acquired 3D images of the superior mesenteric artery （SMA）/superior mesenteric vein （SMV）, ileocecal artery （ICA）, middle colic artery （MCA）, and inferior mesenteric vein （IMV）. We have compared our two study groups with regard to five items, including clinical anastomotic leakage. We have discussed here the role of 3DCT in laparoscopic surgery for colorectal carcinoma. RESULTS： The mean length of the incision in LG was 4.6254-0.89 cm, which was significantly shorter than that in OG （P〈0.001）. The association between ICA and SMV and SMA was described in the right-sided colectomy. The preoperative imaging of IMA and IMV was created in the rectosigmoidectomy. There was no significant difference in anastomotic leakage between the two groups, but no patients in LG experienced anastomotic leakage.CONCLUSION： Most of the patients are satisfied with the shorter incisional length following laparoscopic surgery. Preoperative visualization of the major regional vessels may be helpful for the secure treatment of the anastomosis in laparoscopic surgery for colorectal carcinoma.

关键词： Three-dimensional computed tomography Laparoscopic colorectal surgery, Colorectal cancer

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Efficacy of multislice computed tomography for gastroenteric and hepatic surgeries

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World Journal of Gastroenterology 2005年第10期11卷 1532-1534页

作者： Hiroshi Ohtani Hidemi Kawajiri yuichi arimoto Koichi Ohno Yasuhisa Fujimoto Hiroko Oba Kenji Adachi Masaya Hirano Shoichi Terakawa Mitsuo Tsubakimoto Department of Surgery Department of Gastroenterology Department of Radiology

AIM: To determine the efficacy of multislice CT for gastroenteric and hepatic ***: Dual-phase helical computed tomography was performed in 50 of 51 patients who underwent gastroenteric and hepatic surgeries. Twenty-eight, eighteen and four patients suffering from colorectal cancer, gastric cancer,and liver cancer respectively underwent colorectal surgery (laparoscopic surgery: 6 cases), gastrectomy, and hepatectomy. Three-dimensional computed tomography imaging of the inferior mesenteric artery, celiac artery and hepatic artery was performed. And in the follow-up examination of postoperative patients, multiplanar reconstruction image was made in case of ***: Scans in 50 patients were technically satisfactory and included in the analysis. Depiction of major visceral arteries, which were important for surgery and other treatments, could be done in all *** visualization of the left colic artery and sigmoidal arteries, the celiac artery and its branches, and hepatic artery was very useful to lymph node dissection,the planning of a reservoir and hepatectomy. And multiplanar reconstruction image was helpful to diagnosis for the postoperative follow-up of ***: Three-dimensional volume rendering or multiplanar reconstruction imaging performed by multislice computed tomography was very useful for gastroenteric and hepatic surgeries.

关键词： Multislice CT Three-dimensional CT MPR Gastroenteric surgery Hepatic surgery

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