Sang On Lee

OBJECTIVES: Aortic arch reconstruction of interrupted aortic arch remains challenging, and subsequent problems, including arch and airway stenosis, may occur. Thus, we investigated midterm results of an augmentation technique using autologous vascular patch. METHODS: This retrospective study included 24 patients who underwent arch reconstruction with an autologous vascular patch for interrupted aortic arch with biventricular physiology from 2006 to 2018. The median age and body weight at operati

BACKGROUND: Coronary artery bypass grafting (CABG) is being offered increasingly frequently to octogenarians. However, old age is known to be an independent risk factor in CABG. The aim of this study was to compare the outcomes of off-pump coronary artery bypass (OPCAB) between octogenarians and septuagenarians. METHODS: We retrospectively reviewed the data of 1,289 consecutive patients aged ≥70 years who underwent OPCAB at a single institution between 2001 and 2016. We compared the outcomes of

최근 들어 예약 O2O 서비스, 국내.외 OTA(Online Travel Agency) 서비스로 인한 비즈니스 환경 변화로 숙박업 분야에서도 신속한 대처능력을 요구하고 있다. 이같은 상황에서 소규모 숙박업체들은 대형 호텔에 상응하는 기능을 갖춘 가볍고 효율적인 시스템 구축이 필수 불가결하다. 이를 위하여 마이크로 서비스 아키텍쳐(MSA)를 채용한 클라우드 기반의 서비스(SaaS)를 제공하는 방법을 제안한다. 전체 서비스에 영향을 주지 않으면서 지속적인 개선을 가능하게 함으로써 빠른 비즈니스 환경변화에 적합한 구현방법이다. 분리되어 있는 외부예약관리와 객실판매관리를 하나의 서비스에 통합하여 초과예약(오버부킹) 문제와 객실 재고 비동기 문제를 해결한다. 그 결과 예약정보수집의 정확도가 향상되었고 재고관리 부분에서의 효율성을 보였다.

BACKGROUND: Air embolism (AE) is a rare but potentially fatal complication of intestinal endoscopy (IE). CASE SUMMARY: Herein, we report the case of an 18-year-old woman who underwent a successful Kasai portoenterostomy (KPE) for biliary atresia but died of AE during intraoperative IE for stone removal at the portoenterostomy site. Our review of the English literature identified only four similar cases of fatal AE during IE in patients undergoing KPE. The common clinical setting in the five pati

We report the case of a female patient who underwent late reoperation following endocarditis surgery. The patient first underwent surgery at 22 years of age for endocarditis with aortic and tricuspid insufficiency. She underwent aortic root replacement with a homograft and tricuspid valve replacement with a tissue valve. Coronary artery bypass using the internal thoracic artery and ligation of the left main coronary artery were performed. Ten years later, failure of the homograft and the tricusp

Objectives Postoperative pulmonary vein stenosis (PVS) is an uncommon but potentially serious complication following pediatric heart transplantation. This study aimed to determine the prevalence of PVS and identify donor- and recipient-related predictors. Methods We retrospectively reviewed pediatric patients (<18 years) who underwent heart transplantation at a single center between 2003 and 2024. PVS was defined as a ≥ 4 mmHg Doppler gradient across any pulmonary vein on echocardiography