Publications by authors named "Sunpyo Lee"
Objective: Percutaneous gastrostomy (PG) is a common procedure that enables long-term enteral nutrition. However, data on the durability of individual tube types are insufficient. We conducted this study to compare the longevities and features of different PG tube types.
View Article and Find Full Text PDFBackground/aims: We aimed to investigate whether the current indications for curative endoscopic resection (ER) of gastric cancer (GC) can be applied to GC caused by adenoma. Additionally, we attempted to identify factors predictive of lesions subsequently found in addition to the expanded indications for ER.
Methods: We retrospectively analyzed 342 patients diagnosed with GC caused by adenoma who underwent ER at a single tertiary center between February 2011 and December 2014.
Background/aims: We used three-dimensional (3D) printing technology to create a new biopsy simulator for the stomach and investigated its efficacy and realism in endoscopic biopsy training.
Methods: A novel stomach biopsy simulator, with 10 biopsy sites, was produced using a 3D printer. We enrolled 26 participants, including 10 residents, six first-year fellows, five second-year fellows, and five faculty members.
Background: Endoscopic submucosal dissection (ESD) for early gastric cancer (EGC) meeting the expanded indication is considered investigational. We aimed to compare long-term outcomes of ESD and surgery for EGC in the expanded indication based on each criterion.
Methods: This study included 1823 consecutive EGC patients meeting expanded indication conditions and treated at a tertiary referral center: 916 and 907 patients underwent surgery or ESD, respectively.
Background: Although extragastric recurrence after endoscopic resection of early gastric cancer is rare, it is important because of its potentially fatal outcomes. We investigated the patterns of extragastric recurrence after endoscopic resection and evaluated the role of abdominal computed tomography in surveillance.
Methods: Between July 1994 and June 2014, 4915 patients underwent endoscopic resection of early gastric cancer.
Background: Postoperative anastomotic bleeding (PAB) is relatively rare; however, it can be lethal if not treated immediately. The aim of our study was to investigate the clinical features of PAB and the efficacy of endoscopic hemostasis (EH) for PAB.
Methods: Between January 2004 and May 2013, 16,591 patients underwent gastrectomy for gastric cancer at Asan Medical Center.
Objectives: There is limited data on whether scoring systems can be used to predict clinical outcomes in patients with upper gastrointestinal bleeding due to Mallory-Weiss syndrome (MWS). We aimed to evaluate whether the Glasgow-Blatchford score (GBS) could be effective in predicting clinical outcomes of bleeding MWS and to investigate the predictive ability of the Forrest classification for rebleeding and assess the effective endoscopic modalities for bleeding control in MWS.
Methods: From January 2004 to December 2012 168 patients were diagnosed with MWS in the Asan Medical Center Emergency Department.
The coexistence of an epithelial lesion and a subepithelial lesion is uncommon. In almost all such cases, the coexistence of these lesions appears to be incidental. It is also extremely rare to encounter a neoplasm in the surface epithelium that overlies a benign mesenchymal tumor in the esophagus.
View Article and Find Full Text PDFA 52-year-old man was presented with a huge left testicular mass and palpable cervical lymphadenopathy with retroperitoneal lymph node enlargement on an abdominal computed tomography. A left radical orchiectomy and an ultrasound-guided neck node biopsy were performed. A pathological examination revealed spermatocytic seminoma with extensive rhabdomyosarcomatous transformation, a condition known to be highly resistant to platinum-based chemotherapy.
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