Publication date: Available online 18 April 2018
Source:Revista Española de Medicina Nuclear e Imagen Molecular
Author(s): M.V. Gomez, B.C. Lorente Castro, P. Jané, L. García-Zoghby, A. Martínez-Lorca, J.A. Pérez
IntroducciónEl bloqueo completo de rama izquierda inducido por el ejercicio (BCRI-IE) es un fenómeno poco frecuente y de significado incierto. El propósito del presente trabajo ha sido describir las características gammagráficas y el valor pronóstico de dicho hallazgo.Material y métodoSe han revisado las características de 1.885 pacientes que habían acudido a nuestro servicio a realizarse una ergometría-GATED SPECT para diagnóstico de cardiopatía isquémica. Siete de ellos presentaron BCRI-IE en la prueba de esfuerzo. Se realizó coronariografía a 4 de los 7 pacientes. Estos pacientes se han seguido durante un tiempo medio de 30±8 meses. Se investigó la aparición de eventos cardiovasculares mayores.ResultadosLa prevalencia del BCRI-IE fue del 0,37%. Seis de los 7 pacientes eran mujeres. La perfusión y la función miocárdicas fueron normales en 3 pacientes. Tres pacientes presentaron defectos fijos de la perfusión y uno un defecto reversible. Dos de estos pacientes presentaron una FEVI moderada-severamente deprimida. Las coronarias fueron normales en los 4 pacientes con defectos de la perfusión.ConclusionesLa prevalencia del BCRI-IE entre los pacientes que acudieron a realizarse una ergometría con estudio de perfusión miocárdica fue muy baja. El hallazgo fue mucho más frecuente en mujeres. En nuestra serie 2 pacientes presentaron cardiopatía estructural de origen no isquémico pero ninguno fue diagnosticado de enfermedad coronaria. En nuestra serie la presencia de BCRI-IE no se asoció a un mayor riesgo de eventos cardiovasculares mayores.IntroductionExercise-induced left bundle branch block (EI-LBBB) is a rare circumstance of unknown significance. The purpose of this paper is to describe the scintigraphic features and the prognostic value of this finding.Material and methodsWe reviewed the features of 1,885 patients who had visited our department to undergo GATED-SPECT ergometry to diagnose ischaemic heart disease. Seven patients showed EI-LBBB throughout the exercise testing. Coronary angiography was performed in 4 of them. Patients were followed-up over an average period of time of 30±8 months. The onset of major cardiovascular events was recorded during the follow-up period.ResultsThe prevalence of EI-LBBB was 0.37%. Six out of 7 patients were women. Myocardial function and perfusion were normal in 3 patients. Three patients had fixed perfusion defects and one patient had a reversible defect. Two out of the 4 patients showing perfusion defects presented a moderate-severe decrease of the left ventricular ejection fraction. None of the 4 patients with perfusion defects were found to have coronary disease on coronary angiography.ConclusionsThe prevalence of EI-LBBB among the patients that came to undergo GATED-SPECT ergometry was very low. The finding was more frequent in women. In our series, 2 patients presented non-ischaemic structural heart disease, but no patient was diagnosed with coronary artery disease. In our patients the presence of EI-LBBB did not relate to a greater risk of experiencing a major cardiovascular event.
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Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5 Άγιος Νικόλαος
Κρήτη 72100
00302841026182
00306932607174
alsfakia@gmail.com
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! # Ola via Alexandros G.Sfakianakis on Inoreader
Η λίστα ιστολογίων μου
Πέμπτη 19 Απριλίου 2018
Bloqueo de rama izquierda inducido por el ejercicio en la ergometría isotópica. Hallazgos y valor pronóstico
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