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Inicio Medicina Clínica (English Edition) Diagnostic and prognostic efficiency of 24-hour Holter monitoring in patients wi...
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Vol. 147. Issue 4.
Pages 148-150 (August 2016)
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Vol. 147. Issue 4.
Pages 148-150 (August 2016)
Brief report
Diagnostic and prognostic efficiency of 24-hour Holter monitoring in patients with syncope
Rendimiento diagnóstico y pronóstico del registro Holter de 24horas en pacientes con síncope
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Cayetana Barbeito-Caamañoa, Gabriel Sánchez-Fernándeza, Alberto Bouzas-Mosqueraa,
Corresponding author
, Francisco J. Broullónb, Nemesio Álvarez-Garcíaa, José Manuel Vázquez-Rodrígueza
a Servicio de Cardiología, Complexo Hospitalario Universitario A Coruña, Instituto de Investigación Biomédica de A Coruña (INIBIC), A Coruña, Spain
b Departamento de Tecnologías de la Información, Complexo Hospitalario Universitario A Coruña, Instituto de Investigación Biomédica de A Coruña (INIBIC), A Coruña, Spain
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Tables (2)
Table 1. Baseline characteristics of patients.
Table 2. 24h Holter-ECG results.
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Abstract
Background and objective

Syncope is a common condition and complex to diagnose. The yield of the 24h-Holter ECG in this context has not been clearly defined. The aim of this study was to evaluate its diagnostic and prognostic capacity in these patients.

Patients and method

Retrospective study of 6006 consecutive patients sent to our unit for 24h-Holter ECG monitoring for syncope. We registered the diagnostic findings and abnormal findings potentially related to an arrhythmic cause of syncope. The prognostic endpoint was a combination of death or the need for device implantation (pacemaker or defibrillator) within one year.

Results

242 patients (4%) presented diagnostic findings and 472 (7.9%) had some abnormal findings. In 328 cases device implantation was necessary within one year, but up to 66% of these patients did not have any relevant findings on the Holter monitoring. A total of 564 patients presented the combined event, including 36.8% of patients with diagnostic findings and 8.2% without them.

Conclusions

24h-Holter ECG monitoring presents a limited diagnostic and prognostic yield in unselected patients with syncope.

Keywords:
Syncope
Holter
Diagnosis
Mortality
Pacemaker
Defibrillator
Resumen
Antecedentes y objetivo

El síncope es una entidad frecuente y con un diagnóstico complejo. El rendimiento del Holter-ECG 24h en este contexto no está bien definido. Nuestro objetivo fue evaluar su capacidad diagnóstica y pronóstica en estos pacientes.

Pacientes y método

Estudio retrospectivo de 6.006 pacientes consecutivos remitidos a nuestra unidad para la realización de Holter-ECG 24h por síncope. Se registraron los hallazgos diagnósticos y aquellos hallazgos anormales potencialmente relacionados con una causa arrítmica de síncope. El objetivo pronóstico fue un combinado de muerte o necesidad de implante de dispositivo (marcapasos o desfibrilador implantable) a un año.

Resultados

En total, 242 pacientes (4%) presentaron hallazgos diagnósticos y 472 (7,9%) tuvieron algún hallazgo anormal. En 328 casos fue necesario el implante de un dispositivo a un año, pero hasta un 66% de estos enfermos no tenían ningún hallazgo relevante en el Holter. Un total de 564 pacientes presentaron el episodio combinado, incluyendo el 36,8% de pacientes con hallazgos diagnósticos y el 8,2% sin hallazgos diagnósticos.

Conclusiones

El Holter-ECG 24h presenta un rendimiento diagnóstico y pronóstico limitados en pacientes no seleccionados con síncope.

Palabras clave:
Síncope
Holter
Diagnóstico
Mortalidad
Marcapasos
Desfibrilador

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