[Changes in cardiopulmonary capacity after pacemaker implantation in the elderly].
Elderly patients often suffer from several diseases. A combination of heart failure and low heart rate causes a decrease of cardiopulmonary capacity in the elderly. Analysis of gas exchange during exercise allows to determine cardiopulmonary capacity. Twenty-one patients older than 70 years were examined by spioergometry, before and 1 week after implantation of a pacemaker. Blood pressure, breath-frequency, oxygen-uptake, carbon dioxide emission, and respiratory quotient were measured. One week after implantation of a pacemaker system, there was an improvement of cardiopulmonary capacity and oxygen uptake at the moment of aerobic-anaerobic exchange. An additional positive effect was seen in elderly patients after implanting a system with rate-response stimulation (VVIR). Elderly patients with bradycardia profit from the implantation of a pacemaker system. Rate-response stimulation seems to be more effective in increasing cardiopulmonary capacity in the elderly.
Abteilung für Pneumologie und Kardiologie, DRK-Krankenhaus Mark Brandenburg, Akademisches Lehrkrankenhaus der Freien Universität Berlin.
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S
Thalhofer
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P
Dorow
D000368:Aged; D000369:Aged, 80 and over; D001919:Bradycardia / Q000503:physiopathology / Q000628:therapy*; D002302:Cardiac Output / Q000502:physiology*; D005080:Exercise Test; D005260:Female; D006333:Heart Failure / Q000503:physiopathology / Q000628:therapy*; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D008297:Male; D010100:Oxygen / Q000097:blood*; D010138:Pacemaker, Artificial; D013147:Spirometry
D010100:Oxygen
Verhalten der kardio-pulmonalen Belastbarkeit nach Schrittmacherimplantation im Alter.