Clinical features of Neonatal Cardiomyopathy | Abstract

Sakurai K1, Nakano M1, Masumori C1, Mizuno M1, Aso K1

1Department of Pediatrics, St. Marianna University School of Medicine, Kawasaki, Kanagawa 216-8511, Japan

Corresponding Author: Kenzo Sakurai, MD, PhD

Address: Department of Pediatrics, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa 216-8511, Japan; Phone: +81-44-977-8111, Fax: +81-44-975-0509; E-mail:

Received date: 23 October 2019; Accepted date: 08 November 2019; Published date: 16 November 2019


Background: Neonatal cardiomyopathy is a rare disease that ranges from being asymptomatic to abruptly lethal and is not well characterized [1]. We investigated the clinical features of five neonates with cardiomyopathy in our hospital to determine key clinical characteristics.

Methods: We retrospectively reviewed the records of five newborns who were diagnosed with cardiomyopathy between January 2000 and December 2018. The primary evaluation included reasons for diagnosis, underlying diseases, therapy, and turning point.

Results: Patients with hypertrophic cardiomyopathy (HCM) or left ventricular noncompaction (LVNC) were diagnosed on the basis of cardiac murmur, while the patient with dilated cardiomyopathy (DCM) was diagnosed on the basis of sucking failure. Underlying diseases included Noonan syndrome and LEOPARD syndrome. All patients had received β-blockers, and those with DCM and LVNC were also administered diuretics and angiotensin-converting enzyme inhibitors. The two patients with HCM underwent follow-up as out-patients. One patient with HCM died at 3 years old because of arrhythmia. The patient with DCM died due to heart failure 38 days after birth. The patient with LVNC exhibited severe heart failure after birth, requiring follow-up while considering heart transplantation.

Conclusion: Noonan syndrome and LEOPARD syndrome, which is RAS/MAPK-related diseases, should be considered in patients diagnosed HCM. Because heart failure progresses rapidly in patients with neonatal DCM and those with LVNC, planned therapy should include consideration of heart transplantation.

Citation: Sakurai K, Nakano M, Masumori C, Mizuno M, Aso K. Clinical features of neonatal cardiomyopathy. Asp Biomed Clin Case Rep. 2019 Nov 15;2(3):115-19.

Copyright © 2019 Sakurai K, Nakano M, Masumori C, Mizuno M, Aso K. This is an open-access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium provided the original work is properly cited.

Keywords: Neonate; Hypertrophic Cardiomyopathy; Dilated Cardiomyopathy; Left Ventricular; Noncompaction; RAS/MAPK



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