Arch Argent Pediatr 2015;113(6):e317-e322 / e317Presentación de casos clínicos RESUMEN El síndrome bronquial obstructivo recurrente o sibilante recurrente constituye uno de los motivos de consulta más frecuentes en pediatría. Entre los diagnósticos etiológicos diferenciales, se encuentran las cardiopatías congénitas. En esta presentación, se describe el caso de un niño de 4 años derivado a nuestra Institución para valoración cardiológica por presentar sibilancias recurrentes. Se trató de un caso de estenosis mitral congénita grave secundaria a arcada mitral. La arcada mitral es una cardiopatía congénita infrecuente. Constituye una variante de obstrucción al tracto de entrada del ventrículo izquierdo, que afecta el aparato subvalvular mitral y genera hipertensión pulmonar retrograda poscapilar y edema intersticial. El diagnóstico se realizó mediante la evaluación clínica, electrocardiográfica, radiológica y, fundamentalmente, ecocardiográfica. Se efectuó una corrección quirúrgica exitosa con remoción completa de la obstrucción mitral. Palabras clave: broncoespasmo, lactante, sibilancias recurrentes, cardiopatías congénitas, estenosis mitral.
ABSTRACTRecurrent wheezing is a very common clinical ailment throughout infancy and childhood. The most common diagnosis in children with wheezing is asthma. However, some other causes should be considered in the differential diagnosis such as a congenital cardiac defect. We present a case of a four year old boy presenting with recurrent wheezing who was referred to our institution for cardiac evaluation. Severe mitral stenosis secondary to an anomalous mitral arcade was diagnosed by physical examination, chest X-ray, electrocardiogram and mainly transthoracic and transesophageal echocardiography. Anomalous mitral arcade is a rare congenital malformation of the mitral tensor apparatus which comprises the chordae tendineae and papillary muscles. This abnormal anatomy leads Arcada mitral, causa silente de sibilancias recurrentes en la infancia. Caso clínico Anomalous mitral arcade: a disguised and silent lesion leading to a recurrent wheezing in children. A case report to increased filling pressure of the left ventricle, a retrograde post capillary pulmonary hypertension and interstitial aedema. The patient was referred to cardiac surgery and underwent a successful procedure with complete removal of the obstructive mitral lesion.
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