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J Korean Surg Soc. 2005 Mar;68(3):199-204. Korean. Original Article.
Song KY , Kim JJ , Chin HM , Kim W , Chun HM , Park SM , Lim KW , Kim SN , Park WB , Park CH .
Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea.

PURPOSE: Combined resection of invaded organ in advanced gastric cancer has been performed for complete removal of tumor and clearance of regional lymph node. However, higher morbidity and mortality associated with this procedure have been reported in recent large series and the efficacy of the procedure in survival remains controversial. In this study, we analyzed the efficacy of gastrectomy combined with invaded organ resection. METHODS: The medical records of 153 patients with T4 gastric carcinoma who underwent operation at Department of Surgery, Kangnam St. Mary's Hospital, The Catholic University of Korea from 1990 to 1998 were evaluated retrospectively. The patients were divided into three groups. Thirty five patients with combined resection were included in group I, and 72 patients with gastrectomy alone were in group II and 46 patients with no resection were included in group III. RESULTS: Pancreas was the most frequently invaded organ (100 patients: 65.4%), followed by colon (57 patients: 37.3%). The patients of group III were older than that of group I, and the tumor size was bigger in group I than group II. Incidence of the lower one third of the gastric cancer was higher in group II and III than that of group I. Histologically, undifferentiated carcinomas were more frequent in all groups. Postoperative complications in group I occurred in 11 patients (31.5%): intraabdominal abscess (4 patients: 11.4%), duodenal stump leakage (2 patients: 5.7%), renal failure (2 patients: 5.7%), and followed by bleeding, pulmonary complication, pancreatitis. Operative mortality of group I was 2.9%. The 5-year survival rate of group I and II was 15.6% and 3.1%, respectively and 0% in group III. In patients without peritoneal or liver metastasis, the 5-year survival rate of group I and II was 27.0% and 5.5%, respectively. But in patients with incurable factors, there was no difference in survival between the two groups. Median survival of group I with incurable factors was only 7 months. CONCLUSION: Combined resection of invaded organ in patients with T4 gastric carcinoma is a relatively safe procedure. Combined resection should be considered in patients without incurable factors such as peritoneal or liver metastasis.

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