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Comparative Study
. 2013 Nov 7;19(41):7154-9.
doi: 10.3748/wjg.v19.i41.7154.

Characteristics and prognosis of synchronous multiple early gastric cancer

Taro Isobe  1 , Kousuke Hashimoto, Junya Kizaki, Naotaka Murakami, Keishiro Aoyagi, Kikuo Koufuji, Yoshito Akagi, Kazuo Shirouzu
Affiliations
Comparative Study

Characteristics and prognosis of synchronous multiple early gastric cancer

Taro Isobe et al. World J Gastroenterol. .

Abstract

Aim: To assess the clinicopathologic characteristics, risk factors, and prognosis for synchronous multiple early gastric cancer (SMGC).

Methods: A total of 146 patients with SMGC and 1194 patients with single gastric cancer who had undergone gastrectomy between 1989 and 2008 were retrospectively analyzed to determine their clinicopathologic characteristics and postoperative survival. Tumors were classified into groups on the basis of location and histology. Smoking habits were evaluated using the Brinkman index. Clinical and pathological factors were compared using either Fisher's exact test or Pearson's χ(2) test. Logistic regression analysis was performed to identify independent risk factors. Survival rate was calculated using the Kaplan-Meier method.

Results: SMGCs accounted for 10.9% of gastric cancer cases and occurred predominantly in elderly male patients with a family history of gastric cancer who were both smokers and drinkers. These tumors were typically macroscopically elevated and histologically differentiated. There were no significant differences between SMGC and single gastric cancer patients with respect to tumor location, tumor size, lymph node metastasis, the number of metastatic lymph nodes, venous invasion, or tumor stage (P = 0.052, P = 0.347, P = 0.595, P = 0.805, P = 0.559, and P = 0.408, respectively). Further, there was no significant difference in postoperative survival between the patient groups (P = 0.200). Of the 146 SMGC patients, a single patient had remnant cancer.

Conclusion: A careful preoperative endoscopy is necessary for patients who are at high risk of SMGC, and minimally invasive treatment may be indicated in some cases.

Keywords: Endoscopy; Gastric cancer; Multiple; Prognosis; Synchronous.

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Figures

Figure 1
Figure 1
Survival curve for patients with synchronous multiple early gastric cancer (group A: solid line) and those with single gastric cancer (group B: dotted line). The 3-year survival rates of group A and group B were 95.8% and 96.6%, respectively, and the 5-year survival rates of group A and group B were 90.3% and 93.2%, respectively (P = 0.200).
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