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Vol. 39. Issue 9.
Pages 400-404 (September 2003)
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Vol. 39. Issue 9.
Pages 400-404 (September 2003)
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Evaluación de la tolerancia al ejercicio en pacientes con schistosomiasis crónica sin evidencias clínicas de compromiso cardiopulmonar tratados con praziquantel
Exercise Tolerance in Patients Treated With Praziquantel for Chronic Schistosomiasis With No Signs of Cardiopulmonary Impairment
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8435
M. Montes de Ocaa,
Corresponding author
jgloyo@telcel.net.ve

Correspondencia: CS 5150. P.O. Box 025323. Miami, FL, 33102–5323. EE.UU
, M.A. Sáncheza, C. Tálamoa, B. de Noyab, J.M. Lópeza
a Servicio de Neumología y Cirugía de Tórax. Hospital Universitario de Caracas. Universidad Central de Venezuela. Caracas. Venezuela
b Consulta de Schistosomiasis. Instituto de Medicina Tropical. Universidad Central de Venezuela. Caracas. Venezuela
Related content
Arch Bronconeumol. 2003;39:53410.1016/S0300-2896(03)75449-0
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Objetivo

El propósito del estudio es evaluar si la prueba de esfuerzo progresiva en cicloergómetro (PECP) puede detectar anormalidades funcionales mínimas que indiquen compromiso del lecho vascular pulmonar, en pacientes con schistosomiasis crónica sin evidencias clínicas de compromiso cardiopulmonar tratados con praziquantel.

Pacientes Y Método

Se estudió a 9 pacientes (38 ± 18 años) y a 10 controles (32 ± 14 años). Ambos grupos fueron evaluados con espirometría y PECP para determinar el consumo de O2 máximo, la frecuencia cardíaca, la ventilación minuto y el intercambio gaseoso. Se realizó un ecocardiograma a los pacientes para descartar la presencia de cardiopatías asociadas.

Resultados

Los pacientes tenían una función pulmonar similar al grupo control. En la PECP se observó una discreta disminución del consumo de O2 máximo y de la reserva de la frecuencia cardíaca para el esfuerzo realizado, con respuesta respiratoria normal. No se observaron anormalidades ecocardiográficas que indicasen la presencia de enfermedad vascular pulmonar oclusiva.

Conclusiones

Los resultados indican que estos pacientes tienen una función pulmonar en reposo normal. Sin embargo, la tolerancia al ejercicio presenta una discreta disminución, hecho probablemente secundario a desentrenamiento físico. Los datos durante el esfuerzo hacen improbable la existencia de enfermedad vascular pulmonar oclusiva en estos pacientes. Posiblemente estas anormalidades se presenten en estadios más avanzados de la enfermedad o en aquellos pacientes que no han recibido tempranamente tratamiento médico.

Palabras clave:
Pruebas de esfuerzo
Schistosomiasis crónica
Capacidad de esfuerzo
Objective

The purpose of this study was to evaluate whether a progressive cycle ergometer test (PCET) can detect minimal functional abnormalities that might indicate compromise of the pulmonary vascular bed in patients treated with praziquantel for chronic schistosomiasis who have no clinical signs of cardiopulmonary impairment.

Patients And Method

We studied 9 patients (whose mean (SD) age was 38 (18) years and 10 control subjects aged 32 (14) years. Both groups were evaluated by spirometry and a PCET to determine maximum oxygen consumption, heart rate, minute ventilation and gas exchange. Echocardiograms were used to rule out the presence of associated heart disease.

Results

Lung function was similar among patients and controls. Slight decreases in maximum oxygen consumption and heart rate reserve were observed with effort during the PCET, with normal respiratory response. No echocardiographic abnormalities that might indicate the presence of pulmonary vascular occlusive disease were observed.

Conclusions

The results showed that the resting lung function is normal in these patients. However, there was a slight decrease in exercise tolerance, probably related to physical detraining. The data obtained during exercise indicated that pulmonary vascular occlusive disease is unlikely in these patients. Abnormalities may appear in later stages of the disease or in patients who do not receive early medical treatment.

Key words:
Stress test
Chronic schistosomiasis
Exercise capacity
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Copyright © 2003. Sociedad Española de Neumología y Cirugía Torácica
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