Exercise-Induced Intraventricular Obstruction in a Child with Near Syncope and ...

• Author(s): Lopes, A ; Cotrim, C ; Martins, JD ; Pinto, MF
• Date: 2011
• Persistent ID: http://hdl.handle.net/10400.17/1211
• Origin: Repositório do Centro Hospitalar de Lisboa Central, EPE
• Subject(s): Dor no Peito; Angiografia Coronária; Diagnóstico Diferencial; Ecocardiografia sob Stress; Electrocardiografia em Ambulatório; Exercício; Estudos de Follow-Up; Contracção do Miocárdio; Síncope; Obstrução do Fluxo Ventricular Externo
• Document Type: Article
• Language: English

Description

We report the case of a 10-year-old girl with two episodes of light-headedness and chest pain during exercise. She had an unremarkable clinical record, physical examination, ECG, and echocardiogram. Noninvasive ischemia tests were positive, but coronary angiography was normal. Exercise stress echocardiogram revealed an exercise-induced intra-left-ventricular obstruction with a peak gradient of 78 mmHg and replicated her symptoms. After starting beta-blocker therapy her clinical status improved and no residual obstruction was detected. The authors review this unsuspected clinical condition, seldom reported in the adult population and, to our knowledge, never before in a child.