Isolated noncompaction of the myocardium.

Noncompaction of the myocardium (NCM) is a rare congenital heart defect. It was first described 15 years ago, and few cases are published. The purpose of this study is to describe a NCM case. Clinical findings and imaging test results of a 37-year-old female patient with isolated NCM are presented. The patient complained of palpitations; her physical examination revealed extrasystoles, and her 12-lead electrocardiogram showed ventricular bigeminy. Three-dimensional Doppler echocardiography revealed numerous prominent trabeculations with deep intertrabecular recesses with blood flow which communicated with the ventricular cavity, which were more intense in the septal apical region. Cardiac magnetic resonance imaging corroborated the echocardiographic findings. The clinical presentation and the patients laboratory test results confirmed the diagnosis of isolated NCM. The knowledge of the echocardiographic findings of this disease enables an early diagnosis and a more adequate treatment.

Forma isolada do miocárdio não-compactado / Isolated noncompaction of the myocardium

Miocárdio não-compactado (MNC) é uma cardiopatia congênita com incidência rara, sendo o seu primeiro relato feito há 15 anos e com poucos casos publicados. O objetivo deste artigo é descrever um caso de MNC. É apresentada descrição dos achados clínicos e dos exames complementares de imagem de uma paciente com 37 anos, portadora de MNC de forma isolada. A paciente queixava-se de palpitações, apresentava extra-sístoles no exame clínico e, no eletrocardiograma de 12 derivações, bigeminismo ventricular. Realizou ecocardiograma Doppler tridimensional que revelou a presença de numerosas e proeminentes trabéculas com recessos intertrabeculares profundos com fluxo de sangue que se comunicavam com a cavidade ventricular e que se acentuavam na região septo-apical. A ressonância nuclear magnética de coração corroborou os achados do ecocardiograma. A clínica e os resultados dos exames complementares dessa paciente confirmaram o diagnóstico de MNC de forma isolada. O conhecimento de achados ecocardiográficos dessa doença permite um diagnóstico precoce e tratamento mais adequado.

Noncompacted myocardium (NCM) is a rare congenital heart disease, first reported 15 years ago and with only a few published cases. In this paper, we report the main clinical findings and the complementary exams that suports NCM diagnostic. Discretion of anamnesis and physical examination, together with characteristic image complementary exams findings of symptomatic NCM. (Case report). The clinical assessment and the electrocardiogram at the admission found bigeminism ventricular. A tridimensional Doppler echocardiogram was performed and showed numerous and prominent myocardium trabeculations and deep intertrabecular recess filled with blood that communicate with the ventricular cavity, more present in the septal-apical area. Magnetic resonance imaging supported the echocardiographic findings and ruled out the presence of others cardiac malformations. The clinical and imaging complementary exams filled out the touchstones that support isolated NCM diagnose. Is important to know that suggestive NCM findings permits an earlier diagnostic and treatment.