| Autor: |
Bonnet, Jean-Luc, Ritter, Philippe, Pioger, Guy |
| Předmět: |
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| Zdroj: |
Pacing & Clinical Electrophysiology; Jan1998, Vol. 21 Issue 1, p4-10, 7p |
| Abstrakt: |
A rate responsive minute ventilation (VE) pacemaker was implanted in 49 patients (70.8 ± 40.0 years). A Chorus RM 7034 pacemaker was implanted in 43 patients and an Opus RM 4534 in six patients. Four sensor configurations were compared: atrial configuration (bipolar atrial lead) in 34 patients; ventricular configuration (bipolar ventricular lead) in 6 patients; unipolar configuration (double unipolar leads) in 6 patients; and floating configuration (VDD single-pass lead) in 3 patients. The patients carried out 57 exercise tests in all with cardiopulmonary recording (CPX). Real VE and oxygen consumption (VO2) were recorded by the CPX, the VE measured by the sensor (VE sensor) was recorded in the pacemaker memory. The mean correlation between VE and VE sensor was 0.90 ± 0.08 (P <0.001) and between VO2 and VE sensor was 0.86 ± 0.10 (P <0.001). The mean correlation between VE and VE sensor by configuration type were as follows: atrial configuration = 0.89 ± 0.08; ventricular configuration = 0.95 ± 0.05; unipolar configuration = 0.87 ± 0.14; and floating configuration = 0.88 ± 0.05. In conclusion, VE may be reliably measured using different electrode configurations. A study conducted in a larger population should allow one to conclude that uniploar electrodes can be used in VDDR, AAIR, VVIR, or DDDR modes to measure VE. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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