Volume 58, Issue 1 pp. 84-89
Clinical Research

Predictors of early left ventricular systolic dysfunction in duchenne muscular dystrophy patients

Raphael Henrique Déa Cirino MD

Corresponding Author

Raphael Henrique Déa Cirino MD

Cardiology Division, Hospital de Clínicas, Universidade Federal do Paraná, Curitiba, Rua General Carneiro, 181–12 º andar Curitiba, 80060-900 Paraná, Brazil

Correspondence to: R.H. Déa Cirino; e-mail: [email protected]Search for more papers by this author
Rosana Herminia Scola MD, PhD

Rosana Herminia Scola MD, PhD

Neuromuscular Service, Neurology Division, Hospital de Clínicas, Universidade Federal do Paraná, Curitiba, Paraná, Brazil

Department of Internal Medicine, Hospital de Clínicas, Universidade Federal do Paraná, Curitiba, Paraná, Brazil

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Renata Dal-Prá Ducci MD, PhD

Renata Dal-Prá Ducci MD, PhD

Neuromuscular Service, Neurology Division, Hospital de Clínicas, Universidade Federal do Paraná, Curitiba, Paraná, Brazil

Department of Internal Medicine, Hospital de Clínicas, Universidade Federal do Paraná, Curitiba, Paraná, Brazil

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Ana Cristina Camarozano Wermelinger MD, PhD

Ana Cristina Camarozano Wermelinger MD, PhD

Cardiology Division, Hospital de Clínicas, Universidade Federal do Paraná, Curitiba, Rua General Carneiro, 181–12 º andar Curitiba, 80060-900 Paraná, Brazil

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Claudia Suemi Kamoi Kay MD

Claudia Suemi Kamoi Kay MD

Neuromuscular Service, Neurology Division, Hospital de Clínicas, Universidade Federal do Paraná, Curitiba, Paraná, Brazil

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Paulo José Lorenzoni MD, PhD

Paulo José Lorenzoni MD, PhD

Neuromuscular Service, Neurology Division, Hospital de Clínicas, Universidade Federal do Paraná, Curitiba, Paraná, Brazil

Department of Internal Medicine, Hospital de Clínicas, Universidade Federal do Paraná, Curitiba, Paraná, Brazil

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Lineu Cesar Werneck MD, PhD

Lineu Cesar Werneck MD, PhD

Neuromuscular Service, Neurology Division, Hospital de Clínicas, Universidade Federal do Paraná, Curitiba, Paraná, Brazil

Department of Internal Medicine, Hospital de Clínicas, Universidade Federal do Paraná, Curitiba, Paraná, Brazil

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Eliane Ribeiro Carmes MD, MSc

Eliane Ribeiro Carmes MD, MSc

Department of Internal Medicine, Hospital de Clínicas, Universidade Federal do Paraná, Curitiba, Paraná, Brazil

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Claudio Leinig Pereira Da Cunha MD, PhD

Claudio Leinig Pereira Da Cunha MD, PhD

Cardiology Division, Hospital de Clínicas, Universidade Federal do Paraná, Curitiba, Rua General Carneiro, 181–12 º andar Curitiba, 80060-900 Paraná, Brazil

Department of Internal Medicine, Hospital de Clínicas, Universidade Federal do Paraná, Curitiba, Paraná, Brazil

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First published: 14 February 2018
Citations: 6

Conflicts of Interest: None of the authors have any conflict of interest to disclose.

ABSTRACT

Introduction: Early detection of left ventricular systolic dysfunction (LVSD) is important for therapeutic strategies for Duchenne muscular dystrophy (DMD) patients. We analyzed myocardial strain using echocardiography for early detection of LVSD and determined the predictors of early LVSD. Methods: This investigation was a cross-sectional study of 40 DMD patients with normal left ventricular ejection fraction. Global longitudinal strain (GLS) was used to analyze subtle disturbances in longitudinal contraction of the myocardium. Patients were determined to have early LVSD (GLS > –18) or normal left ventricular systolic function (GLS ≤ –18). Results: Patients who had early LVSD were older and had a higher frequency of corticosteroid therapy and of mutations in exons 45, 46, 47, 48, 49, 50, and 52. Discussion: Myocardial strain measurements are useful for the early diagnosis of LVSD in DMD patients. Older age, use of corticosteroids, and mutations within the “hot-spot” region of the DMD gene are associated with early LVSD. Muscle Nerve 58: 84–89, 2018

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