Chronotropic incompetence in Chagas disease: effectiveness of blended sensor (volume/minute and accelerometer)

Autor: Antonio da Silva Menezes Junior, Aline Pereira da Silva, Giovana Gurian Batista Profahl, Catarine Ottobeli, Jutay Fernando Silva Louzeiro
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Brazilian Journal of Cardiovascular Surgery, Vol 30, Iss 3, Pp 311-315 (2015)
Druh dokumentu: article
ISSN: 1678-9741
DOI: 10.5935/1678-9741.20150035
Popis: AbstractIntroduction:Technological progress of pacemakers has allowed the association of two or more sensors in one heart rate system response. The accelerometer sensor measures the intensity of the activity; it has a relatively rapid response to the beginning of it, however, it may present insufficient response to less strenuous or of less impact exercise. The minute ventilation sensor changes the pacing rate in response to changes in respiratory frequency in relation to tidal volume, allowing responses to situations of emotional stress and low impact exercises.Objective:To evaluate the cardiorespiratory response of the accelerometer with respect to the blended sensor (BS=accelerometer sensor+minute ventilation sensor) to exercise in chagasic patients undergoing cardiopulmonary exercise test.Methods:This was a prospective, observational, randomized, cross-sectional study. Patients who met the inclusion criteria were selected. The maximum heart rate of the sensor was programmed by age (220-age). The results were analyzed through t test with paired samples (P
Databáze: Directory of Open Access Journals