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Article

Long-Term Prognosis of Different Subtypes of Left Ventricular Noncompaction Cardiomyopathy Patients: A Retrospective Study in China

1
Department of Cardiology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
2
Medical Research Center, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
*
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
J. Cardiovasc. Dev. Dis. 2023, 10(9), 369; https://doi.org/10.3390/jcdd10090369
Submission received: 2 July 2023 / Revised: 20 July 2023 / Accepted: 18 August 2023 / Published: 28 August 2023
(This article belongs to the Special Issue Risk Factors, Diagnosis, and Treatment of Cardiovascular Disease)

Abstract

Left ventricular noncompaction (LVNC) is a heterogeneous cardiomyopathy that can be classified into different subtypes based on morphologic and functional features. However, the prognosis of the dilated and isolated subtypes of non-pediatric LVNC remains unknown. We retrospectively studied 101 patients with LVNC diagnosed at Peking Union Medical College Hospital from 2006 to 2022 using the Jenni criteria of transthoracic echocardiography. The patients were grouped into those with dilated LVNC (n = 64) or isolated LVNC (n = 37), and 88 patients (54 with dilated LVNC and 34 with isolated LVNC) were followed up successfully. The primary outcome was major adverse cardiovascular events (a composite of cardiovascular mortality, heart failure, severe ventricular arrhythmia, and systolic embolism). The median follow-up time was 5.24 years. The incidence of major adverse cardiovascular events was 43.2%; patients with dilated LVNC had a higher risk (adjusted hazard ratio, 4.43; 95% confidence interval, 1.24–15.81; p = 0.02) than those with isolated LVNC. None of the isolated LVNC patients had cardiovascular deaths or severe ventricular arrhythmias. The risk of systemic embolism was similar between patients with dilated and isolated LVNC. Our findings indicate that transthoracic echocardiography is a useful tool for classifying LVNC into subtypes with distinct clinical outcomes. Dilated LVNC is associated with a poor prognosis, while the isolated subtype is probably a physiological condition.
Keywords: left ventricular noncompaction (LVNC); transthoracic echocardiography; prognosis; cardiac dilation left ventricular noncompaction (LVNC); transthoracic echocardiography; prognosis; cardiac dilation

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MDPI and ACS Style

Gao, S.; Zhang, S.; Wang, Z.; Wu, M.; Gu, C.; Bai, R.; Liu, M.; Tian, Z.; Zhang, S. Long-Term Prognosis of Different Subtypes of Left Ventricular Noncompaction Cardiomyopathy Patients: A Retrospective Study in China. J. Cardiovasc. Dev. Dis. 2023, 10, 369. https://doi.org/10.3390/jcdd10090369

AMA Style

Gao S, Zhang S, Wang Z, Wu M, Gu C, Bai R, Liu M, Tian Z, Zhang S. Long-Term Prognosis of Different Subtypes of Left Ventricular Noncompaction Cardiomyopathy Patients: A Retrospective Study in China. Journal of Cardiovascular Development and Disease. 2023; 10(9):369. https://doi.org/10.3390/jcdd10090369

Chicago/Turabian Style

Gao, Shiqi, Shuyuan Zhang, Zeyuan Wang, Ming Wu, Chengying Gu, Ruilian Bai, Meixi Liu, Zhuang Tian, and Shuyang Zhang. 2023. "Long-Term Prognosis of Different Subtypes of Left Ventricular Noncompaction Cardiomyopathy Patients: A Retrospective Study in China" Journal of Cardiovascular Development and Disease 10, no. 9: 369. https://doi.org/10.3390/jcdd10090369

APA Style

Gao, S., Zhang, S., Wang, Z., Wu, M., Gu, C., Bai, R., Liu, M., Tian, Z., & Zhang, S. (2023). Long-Term Prognosis of Different Subtypes of Left Ventricular Noncompaction Cardiomyopathy Patients: A Retrospective Study in China. Journal of Cardiovascular Development and Disease, 10(9), 369. https://doi.org/10.3390/jcdd10090369

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