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1.
Med Clin (Barc) ; 124(18): 686-9, 2005 May 14.
Article in English | MEDLINE | ID: mdl-15899162

ABSTRACT

BACKGROUND AND OBJECTIVE: Sarcoidosis is a systemic granulomatous disease of unknown etiology. Aims of this prospective study are to evaluate degree of impairment in pulmonary function tests (PFT), arterial blood gas analysis (ABG), respiratory muscle strength, exercise capacity and correlation of these parameters with radiological stages; to further evaluate the use of cardiopulmonary exercise testing in assessment of extent of pulmonary disease; and to discuss the pathophysiologic mechanisms of limitation in exercise capacity in patients with sarcoidosis. PATIENTS AND METHOD: 29 patients with sarcoidosis were grouped according to their radiological stages (stage I: group 1; stage II, group 2; stage III, group 3). Groups 1, 2 and 3 included 11, 13 and 5 patients, respectively. PFT, cardiopulmonary exercise testing and ABG were performed for each patient. RESULTS: Evaluation of all patients showed a significant decrement in exercise capacity. Patients in stage III had decreased diffusing capacity and exercise capacity. There was limitation in exercise capacity in stage I patients who had completely normal spirometry and diffusing capacity. We also found a correlation between radiological stages of the disease and exercise capacity, diffusing capacity and ABG. CONCLUSIONS: Exercise capacity is impaired also in early stages of sarcoidosis and it was found to be the earliest impaired physiological parameter in sarcoid patients. Exercise intolerance, having mutifactorial basis, is correlated with radiological stages. Circulatory impairment and impaired heart rate response to exercise have effects on limitation in exercise capacity. Especially in advanced radiological stages of disease, ventilatory and gas exchange impairment also seems to be effective on limiting exercise in patients with sarcoidosis.


Subject(s)
Sarcoidosis, Pulmonary/physiopathology , Aged , Exercise/physiology , Exercise Test , Female , Humans , Male , Middle Aged , Prospective Studies , Radiography , Respiratory Function Tests , Sarcoidosis, Pulmonary/diagnostic imaging
2.
Med. clín (Ed. impr.) ; 124(18): 686-689, mayo 2005. tab
Article in En | IBECS | ID: ibc-036602

ABSTRACT

FUNDAMENTO Y OBJETIVO: La sarcoidosis es una enfermedad sistémica granulomatosa de etiología desconocida. Los objetivos de este estudio prospectivo fueron evaluar el grado de deterioro delas pruebas funcionales respiratorias, la gasometría arterial, la fuerza de la musculatura respiratoria y la capacidad de ejercicio, así como la correlación de estos parámetros con los estadios radiológicos. Además, se decidió evaluar la utilización de las pruebas de ejercicio cardiorrespiratorio en la valoración de la extensión de la enfermedad pulmonar y, por último, discutir los mecanismos fisiopatológicos de limitación de la capacidad de ejercicio en los pacientes con sarcoidosis. PACIENTES Y MÉTODO: Se incluyó a 29 pacientes, que fueron agrupados según sus estadios radiológicos(estadio I, grupo 1; estadio II, grupo 2; estadio III, grupo 3). Los grupos 1, 2 y 3 incluyeron11, 13 y 5 pacientes, respectivamente. En cada paciente se realizaron pruebas de funcionalismo respiratorio, pruebas de ejercicio cardiorrespiratorio y gasometría arterial. RESULTADOS: Se observó una disminución significativa de la capacidad de ejercicio. Los pacientes del estadio III tenían una disminución de las capacidades de difusión y de ejercicio. Se observó una limitación de la capacidad de ejercicio en los pacientes del estadio I que, por otra parte, mostraron una capacidad de difusión y espirometría normales. También observamos una correlación entre los estadios radiológicos de la enfermedad y la capacidad de ejercicio, capacidad de difusión y gasometría arterial. CONCLUSIONES: La capacidad de ejercicio está deteriorada en los estadios iniciales de la sarcoidosis y éste fue el parámetro fisiológico más precozmente deteriorado en estos pacientes. La intolerancia al ejercicio, con una base multifactorial, se correlaciona con los estadios radiológicos. La afección circulatoria y la respuesta alterada de la frecuencia cardíaca al ejercicio tienen efectos sobre la limitación de la capacidad de ejercicio. Especialmente en los estadios radiológicos avanzados de la enfermedad, el deterioro ventilatorio y del intercambio gaseoso parecen tener asimismo influencia sobre la limitación del ejercicio en pacientes con sarcoidosis


BACKGROUND AND OBJECTIVE: Sarcoidosis is a systemic granulomatous disease of unknown etiology. Aims of this prospective study are to evaluate degree of impairment in pulmonary function tests (PFT), arterial blood gas analysis (ABG), respiratory muscle strength, exercise capacity and correlation of these parameters with radiological stages; to further evaluate the use of cardiopulmonary exercise testing in assessment of extent of pulmonary disease; and to discuss the pathophysiologic mechanisms of limitation in exercise capacity in patients with sarcoidosis. PATIENTS AND METHOD: 29 patients with sarcoidosis were grouped according to their radiological stages (stage I: group 1; stage II, group 2; stage III, group 3). Groups 1, 2 and 3 included 11,13 and 5 patients, respectively. PFT, cardiopulmonary exercise testing and ABG were performed or each patient. RESULTS: Evaluation of all patients showed a significant decrement in exercise capacity. Patients in stage III had decreased diffusing capacity and exercise capacity. There was limitation in exercise capacity in stage I patients who had completely normal spirometry and diffusing capacity. We also found a correlation between radiological stages of the disease and exercise capacity, diffusing capacity and ABG. CONCLUSIONS: Exercise capacity is impaired also in early stages of sarcoidosis and it was found to be the earliest impaired physiological parameter in sarcoid patients. Exercise intolerance, having mutifactorial basis, is correlated with radiological stages. Circulatory impairment and impaired heart rate response to exercise have effects on limitation in exercise capacity. Especially in advanced radiological stages of disease, ventilatory and gas exchange impairment also seems to be effective on limiting exercise in patients with sarcoidosis


Subject(s)
Humans , Sarcoidosis, Pulmonary/rehabilitation , Lung Volume Measurements/methods , Maximal Voluntary Ventilation , Prospective Studies , Blood Gas Analysis/methods , Respiratory Function Tests/methods
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