Ja-Won Hwang

Minimally invasive surgery reduces surgical trauma and the size and number of incisions. The da Vinci SP robotic surgical system was designed to overcome the technical demands of single-incision laparoscopic surgery. This study aimed to demonstrate the safety and feasibility of single-port (SP) robotic distal gastrectomy (SPRDG) for patients with gastric cancer using the da Vinci SP system (Intuitive Surgical Inc., Sunnyvale, CA, USA). This study was designed as a single-arm prospective phase I/

We investigated a prognostic impact of radiotherapy-induced lymphopenia (RIL) in breast cancer patients treated with breast-conservative surgery (BCS). We included 531 breast cancer patients who were treated with BCS and adjuvant radiotherapy. None of these received (neo)adjuvant chemotherapy. Pre- and post- absolute lymphocyte counts (ALC) were reviewed before and after radiotherapy. The primary endpoint was to evaluate recurrence-free survival (RFS) according to the pre-to-post ALC ratio. Bina

BACKGROUND: Previous studies have focused on the non-inferiority of RPG compared with conventional port gastrectomy (CPG); however, we assumed that some candidates might derive more significant benefit from RPG over CPG. METHODS: We retrospectively analyzed the clinicopathological and perioperative parameters of 1442 patients with gastric cancer treated by gastrectomy between 2009 and 2022. The C-reactive protein level on postoperative day 3 (CRPD3) was used as a surrogate parameter for surgical

Our findings revealed that RTG and LTG for AGC had similar long-term outcomes. RTG is an oncologically safe alternative to LTG and has technical advantages.

BACKGROUND: Indocyanine green-guided (ICG-guided) lymphadenectomy during gastrectomy for cancer has been proposed to enhance the accuracy of lymphadenectomy. The impact of ICG-guided lymphadenectomy on patient survival remains debated. METHODS: The findings of the systematic review were reconstructed into an individual patient data (IDP) meta-analysis with restricted mean survival time difference (RMSTD). Overall survival (OS) and disease-free (DFS) survival were primary outcomes. RMSTD, standar

Abstract Purpose Loss of progesterone receptor (PR) expression is a poor prognostic factor in ER+/HER2- breast cancer. A growing body of evidence suggests that PR expression is affected by endogenous estrogen level and modulated by body mass index (BMI). Using Korean Breast Cancer Society Registry (KBCSR) and institutional database, we evaluated survival outcome by PR expression in the postmenopausal groups stratified by BMI. Moreover, we investigated 21-gene recurrence score to assess intrinsic

Purpose: Although some gastric cancer surgeons in Korean tertiary centers have recently expanded their surgical expertise to include bariatric surgery, early clinical data on such transitions remain limited.This study aimed to evaluate the initial surgical and clinical outcomes of bariatric surgeries performed by a gastric cancer surgeon in Korea.Materials and Methods: We retrospectively reviewed 33 patients who underwent bariatric surgery between October 2019 and December 2024 at Severance Hosp