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Kim Sung Min,Lee Jun Ho,Chung Su Ryeun,Sung Kiick,Kim Wook Sung,Cho Yang Hyun 대한심장혈관흉부외과학회 2024 Journal of Chest Surgery (J Chest Surg) Vol.57 No.2
Background: Pericardial effusion (PE) is a serious condition in cancer patients, primarily arising from malignant dissemination. Pericardial window formation is a surgical intervention for refractory PE. However, the long-term outcomes and factors associated with postoperative survival remain unclear. Methods: We retrospectively analyzed data from 166 oncology patients who underwent pericardial window formation at Samsung Medical Center between 2011 and 2023. We analyzed survival and PE recurrence regarding surgical approach, cancer type, and cytopathological findings. To identify factors associated with survival, we utilized Cox proportional- hazards regression. Results: All patients had tumors documented in accordance with the American Joint Committee on Cancer staging manual, including lung (61.4%), breast (9.6%), gastrointestinal (9.0%), hematologic (3.6%), and other cancers (16.4%). Surgical approaches included mini-thoracotomy (67.5%) and thoracoscopy (32.5%). Postsurgical cytopathology confirmed malignancy in 94 cases (56.6%). Over a median follow-up duration of 50.0 months, 142 deaths and 16 PE recurrences occurred. The 1-year overall and PE recurrence-free survival rates were 31.4% and 28.6%, respectively. One-year survival rates were significantly higher for thoracoscopy recipients (43.7% vs. 25.6%, p=0.031) and patients with negative cytopathology results (45.1% vs. 20.6%, p<0.001). No significant survival difference was observed between lung cancer and other types (p=0.129). Multivariate analysis identified New York Heart Association class, cancer stage, and cytopathology as independent prognostic factors. Conclusion: This series is the largest to date concerning window formation among cancer patients with PE. Patients’ long-term survival after surgery was generally unfavorable. However, cases with negative cytopathology or earlier tumor stage demonstrated comparatively high survival rates.
Clinical Pearls of Venoarterial Extracorporeal Membrane Oxygenation for Cardiogenic Shock
최민석,Yang Hyun Cho,Kiick Sung 대한심장학회 2019 Korean Circulation Journal Vol.49 No.8
Extracorporeal membrane oxygenation (ECMO) is a technique that uses a pump to drain blood from a body, circulate blood through a membrane lung, and return the oxygenated blood back into the body. Venoarterial (VA) ECMO is a simplified version of the heart-lung machine that assists native pulmonary and/or cardiac function. VA ECMO is composed of a drainage cannula in the venous system and a return cannula in the arterial system. Because VA ECMO can increase tissue perfusion by increasing the arterial blood flow, it is used to treat medically refractory cardiogenic shock or cardiac arrest. VA ECMO has a distinct physiology that is referred to as differential flows. It can cause several complications such as left ventricular distension with pulmonary edema, distal limb ischemia, bleeding, and thromboembolism. Physicians who are using this technology should be knowledgeable on the prevention and management of these complications. We review the basic physiology of VA ECMO, the mechanism of complications, and the simple management of VA ECMO.
Outcomes of Concomitant Maze Procedure in Tricuspid Repair for Severe Tricuspid Regurgitation
Park Ilkun,Chung Suryeun,Cho Yang Hyun,Sung Kiick,Kim Wook Sung,Song Kyungsub,Ahn Joong Hyun,Jeon Chang Seok,Park Pyo Won,Jeong Dong Seop 대한의학회 2024 Journal of Korean medical science Vol.39 No.15
Background: We aimed to analyze the impact of concomitant Maze procedure on the clinical and rhythm outcomes, and echocardiographic parameters in tricuspid repair for patients with severe tricuspid regurgitation (TR) and persistent atrial fibrillation (AF). Methods: Patients who had severe TR and persistent AF and underwent tricuspid valve (TV) repair were included in the study. Both primary TR and secondary TR were included in the current study. The study population was stratified according to Maze procedure. The primary outcome was major adverse cardiovascular and cerebrovascular event (MACCE) at 15 years postsurgery. Propensity-score matching analyses was performed to adjust baseline differences. Results: Three hundred seventy-one patients who underwent tricuspid repair for severe TR and persistent AF from 1994 to 2021 were included, and 198 patients (53.4%) underwent concomitant Maze procedure. The maze group showed 10-year sinus rhythm (SR) restoration rate of 55%. In the matched cohort, the maze group showed a lower cumulative incidence of cardiac death (4.6% vs. 14.4%, P = 0.131), readmission for heart failure (8.1% vs. 22.2%, P = 0.073), and MACCE (21.1% vs. 42.1%, P = 0.029) at 15 years compared to the non-maze group. Left atrial (LA) diameter significantly decreased in the maze group at 5 years (53.3 vs. 59.6 mm, P < 0.001) after surgery compared to preoperative level, and there was a significant difference in the change of LA diameter over time between the two groups (P = 0.013). Conclusion: The Maze procedure during TV repair in patients with severe TR and persistent AF showed acceptable SR rates and lower MACCE rates compared to those without the procedure, while also promoting LA reverse remodeling.
Hyoung Woo Chang,Yang Hyun Cho,Suhyun Cho,Kiick Sung,Pyo Won Park 대한중환자의학회 2015 Acute and Critical Care Vol.30 No.4
We report a case of successful heart transplantation after 67 days of support with venoarterial extracorporeal membrane oxygenation (ECMO) in a patient who underwent surgery for type A aortic dissection and myocardial infarction complicated by irreversible myocardial damage and a deep sternal wound infection. During ECMO support, left heart vent and distal limb perfusion were performed. Mediastinitis was treated with mediastinal washout and irrigation. Multiple complications from peripheral ECMO were successfully managed.
Heo MuHyung,Kim Myoung Young,Lee Jun Ho,Chung Su Ryeun,Sung Kiick,Kim Wook Sung,Cho Yang Hyun 대한흉부외과학회 2023 Journal of Chest Surgery (J Chest Surg) Vol.56 No.3
Background: The survival benefit of coronary artery bypass grafting (CABG) using the bilateral internal thoracic arteries (BITA) is well known; however, the role of BITA in concomitant aortic valve replacement (AVR) and CABG has not been studied. Methods: We retrospectively reviewed patients who underwent concomitant AVR and CABG. Cases not using an internal thoracic artery and less than 2 bypass grafts were excluded. We enrolled 114 patients in this study. The mean follow-up duration was 61.5±43.5 months. Results: Forty patients (35.1%) underwent CABG with a single internal thoracic artery (SITA) and 74 patients (64.9%) underwent CABG with BITA. The preoperative clinical characteristics were not significantly different between the 2 groups, with the exception of a higher prevalence of atrial fibrillation in the SITA group. Postoperative mortality and morbidity were not significantly higher in the BITA group than in the SITA group. In the univariable analysis, the survival of the BITA group was similar to that of the SITA group (p=0.157). Multivariable analysis showed that only mean age was a predictor of death (p=0.042), but using BITA was not an independent predictor (p=0.094). In low-risk patients whose preoperative ejection fraction was >45%, the survival of the BITA group was significantly better than that of the SITA group (p=0.043). Conclusion: BITA use in concomitant AVR and CABG showed no difference in mortality compared to using SITA. Although its impact on long-term survival was inconclusive, BITA use can be considered for low-risk patients.
HeartMate 3 Implantation via Only Left Thoracotomy: A Case Report
Jang Mi Young,Lee Jun Ho,Chung Su Ryeun,Sung Kiick,Kim Wook Sung,Cho Yang Hyun 대한흉부외과학회 2023 Journal of Chest Surgery (J Chest Surg) Vol.56 No.3
Median sternotomy is a standard surgical technique used for left ventricular assist device (LVAD) implantation. However, if sternotomy has a prohibitive surgical risk, LVAD implantation can be performed through only left thoracotomy. We managed a patient with endstage heart failure who had recently undergone coronary artery bypass grafting (CABG) elsewhere. The patient also had a deep sternal wound infection and bacteremia. Because of refractory cardiogenic shock, we performed extracorporeal membrane oxygenation (ECMO). After multiple mediastinal washouts and omental flap placement, ECMO was converted to extracorporeal LVAD (from the left ventricular apex to the descending aorta) through a left thoracotomy. The extracorporeal LVAD was maintained for 18 days and replaced by the HeartMate 3 LVAD. The patient was discharged in good condition 115 days after CABG.
Clinical Characteristics of Marfan Syndrome in Korea
A Young Lim,Ju Sun Song,Eun Kyoung Kim,장신이,Tae-Young Chung,Seung-Hyuk Choi,Kiick Sung,June Huh,I-Seok Kang,Yeon Hyeon Choe,Chang-Seok Ki,Duk-Kyung Kim 대한심장학회 2016 Korean Circulation Journal Vol.46 No.6
Background and Objectives: Marfan syndrome (MFS) is a connective tissue disorder with autosomal dominant inheritance and a highly variable clinical spectrum. However, there are limited data available on the clinical features of Korean patients with MFS. The aim of the present study was to describe the clinical characteristics and outcomes of Korean patients with MFS. Subjects and Methods: We included all patients who were diagnosed with MFS between January 1995 and May 2015 at a single tertiary medical center. Patients with an MFS-related disorder including MASS phenotype (myopia, mitral valve prolapse, borderline and nonprogressive aortic root dilatation, skeletal findings, and striae), mitral valve prolapse syndrome, and ectopia lentis syndrome were excluded. A total of 343 Korean patients aged ≥15 years who satisfied the revised Ghent nosology were included. Results: The mean patient age at diagnosis was 35.9±12.6 years and 172 (50.1%) patients were male. Median follow-up duration was 52.8 months. A total of 303 patients (88.6%) had aortic root dilatation with Z score ≥2 or aortic root dissection. Ectopia lentis was relatively less common (163 patients, 55.1%) and systemic score ≥7 was found in 217 patients (73.8%). Among 219 probands, a family history of MFS was present in 97 patients (44.5%) and sporadic cases in 121 patients (55.5%). Among the 157 probands who underwent genetic analysis, 141 (89.8%) had an FBN1 mutation associated with aortic root aneurysm/dissection. Aortic dissection (AD) or intramural hematoma (IMH) was identified in 110 patients (32.1%). Among the 221 patients without AD or IMH, descending aortic aneurysms were identified in 19 patients (8.6%). Two hundred thirteen patients (62%) underwent cardiovascular surgery of any type. Eight patients died during follow-up. Conclusion: We described the clinical characteristics and outcomes of Korean MFS patients. Cardiovascular manifestations were commonly detected and FBN1 mutation was present in approximately 90% of patients. In contrast, ectopia lentis was identified in approximately half of patients. Our findings will be informative for the evaluation of patients with MFS.
재발성 연골염에 동반된 빠르게 크기가 증가하는 상행대동맥류 1예
장하성 ( Haseong Chang ),김동욱 ( Dongwuk Kim ),김주원 ( Juwon Kim ),이대근 ( Daegeun Lee ),성기익 ( Kiick Sung ),김덕경 ( Duk-kyung Kim ) 대한내과학회 2016 대한내과학회지 Vol.91 No.3
Here we describe a case of rapidly expanding ascending aortic aneurysm in a patient with relapsing polychondritis. To prevent aneurysm rupture, the patient underwent emergent surgical repair. Silent inflammation can progress in the aorta wall, even in asymptomatic patients with mild disease activity under immunosuppressive treatment, leading to the rapid growth of aortic aneurysms. Close monitoring with routine imaging is needed once a patient with relapsing polychondritis is diagnosed with an aortic aneurysm. (Korean J Med 2016;91:292-295)