The use of external event monitoring (web-loop) in the elucidation of symptoms associated with arrhythmias in a general population.

OBJECTIVE: To correlate arrhythmic symptoms with the presence of significant arrhythmias through the external event monitoring (web-loop). METHODS: Between January and December 2011, the web-loop was connected to 112 patients (46% of them were women, mean age 52±21 years old). Specific arrhythmic symptoms were defined as palpitations, pre-syncope and syncope observed during the monitoring. Supraventricular tachycardia, atrial flutter or fibrillation, ventricular tachycardia, pauses greater than 2 seconds or advanced atrioventricular block were classified as significant arrhythmia. The association between symptoms and significant arrhythmias were analyzed. RESULTS: The web-loop recorded arrhythmic symptoms in 74 (66%) patients. Of these, in only 14 (19%) patients the association between symptoms and significant cardiac arrhythmia was detected. Moreover, significant arrhythmia was found in 11 (9.8%) asymptomatic patients. There was no association between presence of major symptoms and significant cardiac arrhythmia (OR=0.57, CI95%: 0.21-1.57; p=0.23). CONCLUSION: We found no association between major symptoms and significant cardiac arrhythmia in patients submitted to event recorder monitoring. Event loop recorder was useful to elucidate cases of palpitations and syncope in symptomatic patients.

The use of external event monitoring (web-loop) in the elucidation of symptoms associated with arrhythmias in a general population / Utilização do monitor de eventos externo (web-loop) na identificação de sintomas associados a arritmias cardíacas em uma população geral

Objective To correlate arrhythmic symptoms with the presence of significant arrhythmias through the external event monitoring (web-loop). Methods Between January and December 2011, the web-loop was connected to 112 patients (46% of them were women, mean age 52±21 years old). Specific arrhythmic symptoms were defined as palpitations, pre-syncope and syncope observed during the monitoring. Supraventricular tachycardia, atrial flutter or fibrillation, ventricular tachycardia, pauses greater than 2 seconds or advanced atrioventricular block were classified as significant arrhythmia. The association between symptoms and significant arrhythmias were analyzed. Results The web-loop recorded arrhythmic symptoms in 74 (66%) patients. Of these, in only 14 (19%) patients the association between symptoms and significant cardiac arrhythmia was detected. Moreover, significant arrhythmia was found in 11 (9.8%) asymptomatic patients. There was no association between presence of major symptoms and significant cardiac arrhythmia (OR=0.57, CI95%: 0.21-1.57; p=0.23). Conclusion We found no association between major symptoms and significant cardiac arrhythmia in patients submitted to event recorder monitoring. Event loop recorder was useful to elucidate cases of palpitations and syncope in symptomatic patients. .

Objetivo Correlacionar sintomas arrítmicos com a presença de arritmias significativas por meio do monitor de eventos externo (web-loop). Métodos Entre janeiro e dezembro de 2011, o web-loop foi instalado em 112 pacientes (46% mulheres, 52±21 anos). Sintomas específicos foram definidos como palpitação, pré-síncope e síncope, presentes durante a monitorização. Arritmia significativa foi definida como taquicardia paroxística supraventricular, flutter e fibrilação atrial, taquicardia ventricular, pausas superiores a 2 segundos ou bloqueio atrioventricular avançado. A associação entre presença de sintomas e arritmias significativas foi avaliada. Resultados O monitor de eventos registrou sintomas específicos em 74 (66%) pacientes, entretanto a associação entre sintomas específicos e arritmia significativa foi observada em apenas 14 (19%) deles. Em 11 pacientes (9,8%), foi detectada arritmia significativa na ausência de sintomas. Não houve associação entre a presença de sintomas e a detecção de arritmia significativa (OR=0,57, IC95%: 0,21-1,57; p=0,23). Conclusão Em pacientes monitorizados pelo web-loop, não houve associação entre a presença de sintomas específicos e a detecção de arritmias significativas. O monitor de eventos pode ter importância na elucidação de sintomas de palpitações e síncope dos pacientes. .

Avaliação da etiologia da síncope e pré-síncope em pacientes com extra-sístoles ventriculares de via de saída do ventrículo direito sem cardiopatia aparente / Evaluation of etiology of syncope and near-syncope in pacients with premature beats originating in the right ventricular outflow tract without apparent cardiopathy

Pacientes com extrassístoles ventriculares de via de saída de ventrículo direito, freqüentemente relatam síncopes e pré-síncopes, sem que se observe correlação destes sintomas com alterações eletrocardiográficas. O objetivo deste estudo foi investigar a prevalência de síncope vasovagal neste grupo de pacientes, pela realização do teste de inclinação. Os pacientes foram divididos em 4 grupos: com palpitações, síncopes, pré-síncopes e assintomáticos. A positividade do teste de inclinação nos pacientes com síncope e pré-síncopes foi significativamente maior quando comparada aos pacientes com palpitações e assintomáticos / Patients with premature beats originating in the right ventricular outflow tract, often refer syncope and near syncope, but frequently no correlation is observed between symptoms and arrythmia in the ambulatorial electrocardiogram. The aim of this study was to evaluate the prevalence of vasovagal syncope in these patients with tilt-table-test. The patients were divided in 4 groups: palpitations, syncope, near-syncope and assyntomatics. Positive response to tilt-table-test was significatly highter in pacients with syncope and near-syncope when compared to those with palpitation and assyntomatics...