Jung-Hoon Park

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OBJECTIVE The purpose of this article is to investigate the incidence and management of esophageal rupture caused by balloon dilation in patients with benign esophageal strictures. MATERIALS AND METHODS Fluoroscopically guided esophageal balloon dilation was performed on 589 patients with benign esophageal strictures during an 18-year period. The(More)
OBJECTIVE The purpose of this article is to retrospectively evaluate the long-term clinical results of balloon dilation in the treatment of benign anastomotic strictures after esophagectomy and to identify factors associated with stricture recurrence. MATERIALS AND METHODS From January 1996 to June 2011, a total of 309 sessions of balloon dilation were(More)
BACKGROUND Self-expandable metallic stent placement is widely used to manage malignant gastroduodenal obstructions. However, there are difficulties in negotiating a guidewire (GW) and a stent delivery system (SDS). PURPOSE To investigate feasibility, usefulness, and safety of a guiding sheath for fluoroscopic stent placement in patients with malignant(More)
PURPOSE To present a well-defined protocol for balloon dilation for colorectal anastomotic strictures and evaluate clinical efficacy of the dilation in 42 patients. MATERIALS AND METHODS From October 1999 to June 2010, 42 patients (32 males and 10 females with mean age 52.1 years ± 16.3) with surgical colorectal anastomotic strictures who received(More)
To evaluate the clinical effectiveness of self-expandable metallic stents in seven patients with malignant gastroduodenal obstruction caused by inoperable hepatocellular carcinoma (HCC). Seven patients with gastroduodenal obstruction caused by advanced HCC underwent metallic stent placement from 2003 to 2010. These patients had total dysphagia (n = 5) or(More)
The epigenetic regulation of viral genes may be important for the life cycle of EBV. We determined the methylation status of three viral promoters (Wp, Cp, Qp) from EBV B-lymphoblastoid cell lines (LCLs) by pyrosequencing. Our pyrosequencing data showed that the CpG region of Wp was methylated, but the others were not. Interestingly, Wp methylation was(More)
OBJECTIVE The purpose of this article is to assess the technical feasibility and clinical effectiveness of the placement of partially covered self-expandable dual stents in patients with afferent loop syndrome. MATERIALS AND METHODS Data from 13 consecutive patients who had undergone partially covered dual stent placement for afferent loop syndrome after(More)
Evidence for the epigenetic regulation of hematopoietic stem cells (HSCs) is growing, but the genome-wide epigenetic signature of HSCs and its functional significance remain unclear. In this study, from a genome-wide comparison of CpG methylation in human CD34(+) and CD34(-) cells, we identified a characteristic undermethylation dip around the transcription(More)
PURPOSE To retrospectively evaluate the incidence, predictive factors, and interventional management of food impaction after expandable metallic stent placement in patients with obstruction of the esophagus or upper gastrointestinal tract caused by benign or malignant disease. MATERIALS AND METHODS Between March 1993 and March 2010, 1,360 patients (1,029(More)
To evaluate the clinical efficacy and safety of self-expandable metallic stent (SEMS) placement for malignant oesophageal strictures and their relationship with stent designs. Seven generations of SEMS were used to treat 645 consecutive patients with oesophageal strictures. Logistic regression models were constructed to identify predictive factors(More)