title: [Methodologic and clinical comparison of four different ergospirometry systems].
abstract: The clinician who uses cardio-pulmonary exercise testing (CPX) systems relies on the technical informations from the device producers. In this paper, the practicability, the accuracy and the safety of four different, available CPX systems are compared in the clinical area, using clinically orientated criteria. The exercise tests were performed in healthy subjects, in patients with cardiac and/or pulmonary disease as well as in young or old people. The comparison study showed, that there were partially large differences in device design and measurement accuracy. Furthermore, our investigation demonstrated that beneath repetitive calibrations of the CPX systems a frequent validation of the devices by means of a metabolic simulator is necessary. Problems in calibration can be caused by an inadequate performance or by unclean calibration gases. Problems in validation can be due to incompatibility of the CPX device and the validator. The comparison study of the four different systems showed that in the future standards for CPX testing should be defined.
authors.affiliation: Klinik III für Innere Medizin, Universität zu Köln.
authors.forename: U J
authors.initials: UJ
authors.lastname: Winter
authors.forename: J
authors.initials: J
authors.lastname: Fritsch
authors.forename: A K
authors.initials: AK
authors.lastname: Gitt
authors.forename: G
authors.initials: G
authors.lastname: Pothoff
authors.forename: P G
authors.initials: PG
authors.lastname: Berge
authors.forename: H H
authors.initials: HH
authors.lastname: Hilger
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015308:Anaerobic Threshold / Q000502:physiology; D001794:Blood Pressure / Q000502:physiology; D002138:Calibration; D002245:Carbon Dioxide / Q000502:physiology; D004867:Equipment Design; D005080:Exercise Test / Q000295:instrumentation*; D005260:Female; D006331:Heart Diseases / Q000175:diagnosis / Q000503:physiopathology; D006333:Heart Failure / Q000175:diagnosis / Q000503:physiopathology; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D008297:Male; D008838:Microcomputers; D008875:Middle Aged; D010100:Oxygen / Q000502:physiology; D011237:Predictive Value of Tests; D011659:Pulmonary Gas Exchange / Q000502:physiology; D012016:Reference Values; D015203:Reproducibility of Results; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013147:Spirometry / Q000295:instrumentation*
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen
vernacular_title: Methodischer und klinischer Vergleich von vier verschiedenen Ergospirometriesystemen.