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자료유형
학술저널
저자정보
Jeong Eun Ahn (Seoul National University Children’s Hospital) Susan Taejung Kim (Seoul National University Children's Hospital) Hye Won Kwon (Seoul National University Children’s Hospital) Sang Yun Lee (Seoul National University Children's Hospital) Gi Beom Kim (Seoul National University Children’s Hospital) Jae Gun Kwak (Seoul National University Children’s Hospital) Woong Han Kim (Seoul National University Children’s Hospital) Mi Kyoung Song (Seoul National University Children’s Hospital) Eun Jung Bae (Seoul National University Children’s Hospital)
저널정보
대한심장학회 Korean Circulation Journal Korean Circulation Journal Vol.52 No.12
발행연도
2022.12
수록면
865 - 875 (11page)
DOI
https://doi.org/10.4070/kcj.2022.0143

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Background and Objectives: Cardiac resynchronization therapy (CRT) is an effective treatment for heart failure. However, in pediatric and congenital heart disease (CHD) patients, current adult indications cannot be directly applied because of heterogeneity in anatomy and diagnosis. Therefore, CRT responses and clinical outcomes in these patients were investigated to derive possible candidates for CRT. Methods: This study retrospectively analyzed 16 pediatric and CHD patients who underwent CRT implantation at a single center in early (0.7±0.2 year) and late (4.7±0.3 years) follow-up period after CRT. Results: The median age at CRT implantation was 2.5 (0.3–37.2) years, and median follow-up duration was 6.3 (0.1–13.6) years. Thirteen had non-transvenous CRT. Two had congenital complete atrioventricular (AV) block with previous right ventricular pacing, 5 had dilated cardiomyopathy (DCM) with left bundle branch block, and 9 had CHD. The mean ejection fraction of the systemic ventricle increased from 28.1±10.0% to 44.3±21.0% (p=0.003) in early and 51.8±16.3% (p=0.012) in late outcome. The mean functional class improved from 3.1±0.9 to 1.8±1.1 after CRT (p=0.003). Twelve patients (75%) showed improvement in ventricular function or functional class after CRT. Proportion of responders differed between patients without CHD (2/2 patients with complete AV block and 5/5 with DCM, 100%) and those with CHD (5/9, 56%), although statistical significance was not reached (p=0.088). Conclusions: CRT improved ventricular function and functional status according to the underlying condition in pediatric and CHD patients. However, further large and longer-term studies are needed to establish the guideline for the patient selection of CRT in these patients.

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