PMID: 14622315Nov 19, 2003Paper

Comparison of impedance minute ventilation and direct measured minute ventilation in a rate adaptive pacemaker

Pacing and Clinical Electrophysiology : PACE
Ron SimonJaswinder Gill

Abstract

Respiration rate (RR) and minute ventilation (MV) provide important clinical information on the state of the patient. This study evaluated the accuracy of determining these using a pacemaker impedance sensor. In 20 patients who were previously implanted with a Guidant PULSAR MAX group of pacemakers, the telemetered impedance sensor waveform was recorded simultaneously with direct volume respiration waveforms as measured by a pneumatometer. Patients underwent 30 minutes of breathing tests while supine and standing, and a 10-minute ergonometer bicycle exercise test at a workload of 50 W. Breathing tests included regular and rapid-shallow breathing sequences. RR was determined by a computerized algorithm, from impedance and respiration signals. The mean RR by impedance was 21.3 +/- 7.7 breaths/min, by direct volume was 21.1 +/- 7.6 breaths/min, range 7-66, the mean difference of RR measured by the impedance sensor, as compared with the true measurement, being 0.2 +/- 2.1 breaths/min. During the entire exercise, the mean correlation coefficient between impedance (iMV) and direct measured MV was 0.96 +/- 0.03, slope 0.13 +/- 0.05 L/Omega and range 0.07-0.26 L/Omega. Bland-Altman limits of agreement were +/- 4.6 L/min for MV versus i...Continue Reading

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Citations

Nov 3, 2012·Journal of Electrocardiology·Sachin NayyarPrashanthan Sanders
Jul 6, 2010·Journal of Pharmacological and Toxicological Methods·Kenneth KearneyPhilip Atterson
Jun 24, 2010·Journal of Pharmacological and Toxicological Methods·S AuthierL B Moon
Oct 27, 2015·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·Emanuela Marcelli, Laura Cercenelli
Jun 24, 2009·Pacing and Clinical Electrophysiology : PACE·Christer GottfridssonNils Edvardsson
Oct 14, 2006·Pacing and Clinical Electrophysiology : PACE·Alaa ShalabyJoerg Neuzner
Oct 8, 2008·IEEE Transactions on Bio-medical Engineering·Marie GuéguinGuy Carrault
Jul 6, 2004·Journal of the American College of Cardiology·Anil-Martin SinhaChristoph Stellbrink
Sep 7, 2006·Cardiovascular Engineering·G C BiniG Corbucci
Jun 19, 2015·Physiological Measurement·J KirchnerM Arnold

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