Publications by authors named "Jae-Hun Chung"

Purpose: Since 1995, the Korean Gastric Cancer Association (KGCA) has been periodically conducting nationwide surveys on patients with surgically treated gastric cancer. This study details the results of the survey conducted in 2023.

Materials And Methods: The survey was conducted from March to December 2024 using a standardized case report form.

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Endoscopic submucosal dissection (ESD) plays a pivotal role in treating early gastric cancer (EGC). Some patients require additional gastrectomy because of non-curative ESD. This study aimed to analyze the clinical factors associated with non-curative ESD and to re-evaluate the role of ESD according to its indication criteria.

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  • * Researchers are investigating how to use the M13 bacteriophage to organize metal nanoparticles into helical structures, leveraging its self-assembly properties during a special 3D printing process.
  • * The study highlights critical external factors, such as nanoparticle shape and the ratio of bacteriophage to nanoparticles, that significantly impact the creation of these helical nanostructures and their qualities.
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Background: This study aimed to evaluate the clinical outcomes and efficacy of enhanced recovery after surgery (ERAS) protocol in patients undergoing distal gastrectomy for gastric cancer (GC).

Methods: Patients were randomly assigned to the ERAS group (EG) and the conventional care group (CG) by stratified randomization according to age and sex. The primary endpoint was adjusted postoperative hospital stay, calculated using discharge criteria developed to evaluate recovery.

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  • - The study developed a new animal model using 22 adult Lewis rats to investigate abdominal aortic aneurysms by creating and repairing mechanical injuries in the aorta.
  • - After 6 weeks, 60% of the rats showed changes in their aneurysms, while after 9 weeks, 88% demonstrated significant growth, with the aorta’s size increasing by 119% and 133% respectively.
  • - Microscopic analysis revealed damage to key aorta components, suggesting that this model closely resembles human AAAs and could be useful for future treatment research.
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  • - This study investigates Petersen's hernia, which can occur after specific types of stomach surgeries, and compares two methods for preventing bowel obstruction caused by this hernia: the conventional defect closure method and the newer mesenteric fixation method.
  • - Conducted as a randomized controlled trial in Korea, the research includes patients with diagnosed gastric cancer who have undergone certain types of surgical anastomosis and aims to determine the effectiveness of each method in preventing bowel obstruction over a three-year period.
  • - Results from this trial are expected to provide valuable insights on the efficacy and safety of the mesenteric fixation method, potentially establishing it as a superior technique for closing Petersen's defects.
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Rationale: Small bowel diaphragm disease (SBDD) is a rare case, caused by long-term administration of nonsteroidal anti-inflammatory drugs (NSAIDs). The circumferential diaphragm in the lumen of small bowel causing mechanical obstruction is the characteristic finding.

Patient Concerns: A 74-year-old male was transferred to Pusan National University Yangsan Hospital (PNUYH) due to abdominal pain lasting for 2 months.

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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 trauma.

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Securing an appropriate proximal resection margin (PRM) is crucial for oncological safety in treating gastric cancer. This study investigated the clinicopathological characteristics of patients with incomplete PRM length of <2 cm in early gastric cancer. Clinicopathological data of 1,493 patients who underwent subtotal gastrectomy for early gastric cancer in 2012 to 2021 were retrospectively reviewed.

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  • Endoscopic removal of foreign bodies (FBs) in children is common, particularly with coins being the most frequently swallowed item.
  • A study analyzed 424 procedures and found the average patient age was 4.1 years, with FBs mainly located in the esophagus and stomach.
  • The use of retrieval nets for gastric FBs significantly reduced the procedure time for low-weight children compared to forceps.
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Duodenal stump leakage (DSL) is a serious complication after gastrectomy. In this study, we developed a novel prevention technique using a falciform ligament patch (FLP) to prevent DSL among high-risk patients after gastrectomy. From January 2019 to July 2021, 14 patients who were judged to be at high risk for DSL during preoperative examinations or surgery were included in this retrospective study, and the FLP was applied to the duodenal stump.

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Background: The goal of this study was to identify the clinical outcomes of uncut Roux-en-Y reconstruction in patients who underwent totally laparoscopic distal gastrectomy (TLDG) over 3-year follow-up.

Methods: From January 2016 to December 2017, 269 patients who underwent TLDG were enrolled in the study and analyzed retrospectively. They were classified into two groups according to the reconstruction method: uncut Roux-en-Y reconstruction (uncut RY) (n = 154) and Billroth II with Braun anastomosis (B-II/Braun) (n = 115).

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Gastrostomy with concurrent laparoscopic Nissen fundoplication (LNF) is often performed as a laparoscopic gastrostomy (LG) by surgeons. Since 2014, we started performing percutaneous endoscopic gastrostomy (PEG) as gastrostomy with LNF. This study aims to compare the outcomes of LG and PEG with LNF.

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BACKGROUND Use of steatotic livers is a known risk factor for increased primary nonfunction after liver transplantation. This study investigated the efficacy and clinical outcome of simple weight reduction of steatosis for donors undergoing living-donor liver transplantation (LDLT). MATERIAL AND METHODS We defined two groups: the reduction group, which included donors with >30% macrovesicular steatosis and body mass index (BMI) >25 kg/m², and the conventional group, which included donors with.

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We reviewed our experience with the management of intussusception presenting as a complication of laparoscopic gastrectomy (LG) and studied the feasibility of a laparoscopic intervention to treat or prevent this condition. We retrospectively analyzed the data of 12 patients diagnosed with intussusception, following gastrectomy, from 2008 to 2017, including clinical manifestations, incidence, post-LG time-interval before diagnosis, and treatment. Totally, 12/2300 gastrectomy patients (0.

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A 46-year-old woman visited our hospital presenting throat pain and globus sensation. The symptoms occurred seven days after eating raw perch and mullet. An endoscopy under sedation showed a fluke-with an approximate length of 4.

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A tunable process for polydimethylsiloxane (PDMS) nanoslit fabrication is developed for nanofluidic applications. A microcontact printing (μCP) of a laterally spreading self-assembled hexadecanethiol (HDT) layer, combined with in situ curing of a sliding SU-8 droplet, enables precise and independent tuning of a nanoslit-mold width and height using a single μCP master mold. The SU-8 nanoslit-mold is replicated using a hard-soft composite PDMS to prevent channel collapse at low (<0.

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InP quantum dots of 3 nm in diameter have been prepared using a dehalosilylation reaction and passivated with ZnSe to enhance photoluminescence by 6.8 times. Core-shell InP@ZnSe quantum dots dispersed in n-hexane have then been investigated using time-resolved spectroscopy to understand their photoluminescence dynamics.

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Both spectra of transient absorption (lambda(max) = 390 nm) and luminescence (lambda(max) = 590 nm) for the (4)T(1) state of Mn(2+) in ZnS nanoparticles shift to long wavelengths by 40 nm and broaden by 1.7 times as the state becomes banded. The (4)T(1) band of capping Mn(2+) in ZnS nanoparticles decays on the time scale of 0.

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Eosinophilic myocarditis usually results from myocardial damage as a result of drugs or parasites, and is generally associated with increased peripheral eosinophil count. This form of myocarditis is difficult to diagnose clinically. A 25 year-old previously healthy woman was transferred from a local clinic because of hypotension and dyspnea with sudden cardiogenic shock after a three day history of gastrointestinal illness.

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Cases of acute myocardial infarction (AMI) that occur during pregnancy or postpartum are rarely reported. Ergot derivatives are known to induce the spasmodic contraction of coronary arteries. Administration of ergot derivatives can cause AMI, even in normal healthy people.

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Common complications of Henoch-Schönlein purpura (HSP) that lead to surgical intervention include intussusception, perforation, necrosis, and massive gastrointestinal bleeding. Acute appendicitis is rarely seen as a complication of HSP. A seven-year-old boy was admitted for arthralgia, abdominal pain, hematochezia, melena, and purpuric rash on the lower extremities.

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Objective: To evaluate the efficacy of CellSlidetrade mark (CS) method in liquid-based gynecologic cytology.

Methods: We compared 1221 specimens prepared by both CS and conventional techniques to evaluate specimen adequacy and cytologic diagnoses. Sensitivity and specificity of these techniques were analyzed in 54 cases using the available histological data.

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