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Purpose@#The aim of this study was to investigate the oncologic safety and identify potential candidates for proximal gastrectomy (PG) in upper third advanced gastric cancer (AGC) and esophagogastric junction (EGJ) cancers. @*Materials and Methods@#Among 5,665 patients who underwent gastrectomy for gastric adenocarcinoma between January 2011 and December 2017, 327 patients who underwent total gastrectomy with standard lymph node (LN) dissection for upper third AGC and Siewert type II EGJ cancers were enrolled. We analyzed the correlation between the metastatic rates of distal LNs (No. 4d, 5, 6, and 12a) around the lower part of the stomach and the clinicopathological characteristics. We identified subgroups with no metastasis to the distal LNs. @*Results@#The metastatic rate of distal LNs in proximal AGC and Siewert type II EGJ cancers was 7.0% (23 of 327 patients). On multivariate analysis, pathological T stage (P=0.001), tumor size (P=0.043), and middle third invasion (P=0.003) were significantly associated with distal LN metastases. Pathological ‘T2 stage’ (n=88), or ‘T3 stage with ≤5 cm tumor size’ (n=87) showed no metastasis in distal LNs, regardless of middle third invasion. Pathological T3 stage with tumor size > 5 cm (n=61) and T4 stage (n=91) had metastasis in the distal LNs. @*Conclusions@#In the upper third AGC and Siewert type II EGJ cancer, pathological T2 and small-sized T3 stage groups are possible candidates for PG in cases without distal LN metastasis. Further validation studies are required for clinical application.
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PURPOSE: Single port laparoscopic inguinal hernia repair has been performed to further reduce port related morbidities and to improve the cosmetic outcome. However, the cosmetic result of single port laparoscopic totally extraperitoneal inguinal hernia repair (TEP) has not been superior to that of transabdominal preperitoneal hernia repair (TAPP). The aim of this study is to introduce and assess the Single Umbilical Tangential Incision (SUTI) for Lap-TEP repair. METHODS: Forty one hernia repairs of 34 patients were performed using SUTI-TEP method. SUTI was made all along the inferolateral skin of the umbilical pit and a vertical incision of less than one centimeter was made in the supra- or infraumbilical skin if needed; the total length of the incision was 2~2.5 cm. SILS(TM) port and conventional instruments were used for the procedure. RESULTS: All procedures were completed without conversion to the conventional TEP procedure. Mean operation time was 73 minutes for unilateral primary hernia, 119 minutes for bilateral primary hernia, 88.5 minutes for unilateral recurrent hernia, and 120 minutes for bilateral recurrent hernia. There were two cases of wound seroma and four cases of urinary retention postoperatively. Other significant complications were not noted. There was no recurrence of hernia during the follow-up period of one to 24 months. At routine follow-up visit at three months postoperative, the scar was barely visible and overall level of patient satisfaction was very high. CONCLUSION: The SUTI-TEP inguinal hernia repair is safe and shows superior cosmetic results. Further studies are required in order to assess the long-term outcome.