Publications by authors named "Tae-Se Kim"
Purpose: Foveolar-type adenocarcinoma of the stomach is a rare variant of gastric cancer. The clinicopathological features and outcomes of endoscopic submucosal dissection (ESD) for gastric foveolar-type adenocarcinoma remain unclear.
Materials And Methods: This study included 1,161 patients who underwent ESD for single early gastric cancers (EGCs) (78 foveolar-type adenocarcinomas and 1,083 well-differentiated [WD] adenocarcinomas).
Background/aims: Lymphoepithelioma-like carcinoma (LELC) is a rare subtype of gastric cancer. We aimed to identify the clinicopathological features and rate of lymph node metastasis (LNM) to investigate the feasibility of endoscopic submucosal dissection for early gastric LELC confined to the mucosa or submucosa.
Methods: We compared the clinicopathological characteristics of 116 early gastric LELC patients and 5,753 early gastric well- or moderately differentiated (WD or MD) tubular adenocarcinoma patients treated by gastrectomy.
Whether antithrombotic agent (ATA) usage increases the risk of gastric post-endoscopic submucosal dissection (ESD) bleeding remains controversial. The aim of this study was to elucidate the effects of usage, type, and cessation timing of ATA on post-ESD bleeding. A total of 4775 early gastric cancer patients undergoing ESD were analyzed; 1:3 propensity score matching between ATA and non-ATA groups resulted in 318 and 767 matched patients in each group, respectively.
View Article and Find Full Text PDFBackground/aims: Delayed perforation is a rare but serious adverse event of gastric endoscopic submucosal dissection (ESD). The aim of this study was to clarify the clinical features and appropriate management strategy of patients with delayed perforation.
Methods: Among 11,531 patients who underwent gastric ESD, the clinical features and outcomes of patients who experienced delayed perforation were retrospectively reviewed and compared with those of the control group.
Objectives: It is unclear whether renal insufficiency (RI) itself is a risk factor for adverse outcomes after gastric endoscopic submucosal dissection (ESD). We aimed to evaluate the safety and efficacy of gastric ESD in patients with and without RI using propensity score-matching analysis.
Methods: In all, 4775 patients with 4775 early gastric cancer lesions undergoing ESD were analyzed.
Background: Primary malignant melanoma of esophagus (PMME) is an extremely rare disease with poor prognosis. We aimed to determine the clinical characteristics and treatment outcomes of patients with PMME.
Methods: We retrospectively reviewed 17 patients diagnosed with PMME in Samsung Medical Center between 2000 and 2020 with median 34 months of follow-up.
Purpose: When patients with early gastric cancer (EGC) undergo non-curative endoscopic submucosal dissection requiring gastrectomy (NC-ESD-RG), additional medical resources and expenses are required for surgery. To reduce this burden, predictive model for NC-ESD-RG is required.
Materials And Methods: Data from 2,997 patients undergoing ESD for 3,127 forceps biopsy-proven differentiated-type EGCs (2,345 and 782 in training and validation sets, respectively) were reviewed.
Background/aims: It is uncertain whether additional endoscopic treatment may be chosen over surgery in patients with positive lateral margins (pLMs) as the only non-curative factor after endoscopic submucosal dissection (ESD) for early gastric cancer (EGC). We aimed to compare the long-term outcomes of additional endoscopic treatments in such patients with those of surgery and elucidate the clinicopathological factors that could influence the treatment selection.
Methods: A total of 99 patients with 101 EGC lesions undergoing additional treatment after noncurative ESD with pLMs as the only non-curative factor were analyzed.
It remains unclear whether endoscopic submucosal dissection (ESD) can be indicated for differentiated-type-predominant early gastric cancer mixed with a minor undifferentiated component (EGC with histological heterogeneity (HH)). Here, we reviewed and compared clinicopathologic characteristics and long-term outcomes of ESD of 257 patients with EGC-HH and those of 2386 patients with pure differentiated-type EGC (PuD-EGC). After ESD, EGC-HH was managed in the same way as PuD-EGC.
View Article and Find Full Text PDFArticle Synopsis
- Gastric intestinal-type adenocarcinoma with anastomosing glands (IAAG) shows distinct features such as larger size, abnormal gland structures, and frequent involvement of lateral resection margins compared to well-differentiated (WD) or moderately differentiated (MD) early gastric cancers (EGCs).* -
- In a study of 2828 patients, IAAG had lower rates of successful en bloc and curative resections (79.5% and 73.1%) compared to WD or MD EGCs, with a significant portion showing lateral resection margin involvement that contributed to non-curative outcomes.* -
- Despite these challenges, patients with IAAG who underwent curative endoscopic submuc
Background And Aim: Clinical course of hepatitis B virus (HBV)-related hepatocellular carcinoma (HCC) patients presenting with low-level viremia (LLV) is unclear.
Methods: A total of 565 HBV-related HCC patients with LLV (detectable but HBV DNA ≤ 2000 IU/mL) at the time of HCC diagnosis were analyzed. Based on patterns of HBV DNA levels during follow-up, patients were categorized into three groups: maintained virologic remission (MVR), LLV, and flare.
Background: The previous studies demonstrated aggressive clinicopathologic features of papillary early gastric cancer (EGC). This raised concerns about the appropriateness of current Japanese guidelines that recommend the same endoscopic submucosal dissection (ESD) criteria for papillary EGC as for well-differentiated (WD) or moderately differentiated (MD) EGCs.
Methods: This study included 4140 patients who underwent ESD for differentiated-type EGC (87 papillary EGCs and 4259 WD or MD EGCs).