title: [Effect of stepwise hypervolemic versus isovolemic hemodilution in patients with intermittent claudication on muscle oxygen pressure during exercise].
abstract: In patients with intermittent claudication and concomitant high hematocrit values a stepwise hypervolemic hemodilution versus isovolemic hemodilution (intravenous infusion of 500ml 10% hydroxyethylstarch solution (HES)(mean molecular weight 200.000/substitution degree 50%) or vensection and subsequent infusion of 10% HES (200/0.5)) were performed intraindividually. Measurements of muscle tissue oxygen pressure (pO2) values using a standardized pedalergometric exercise test as well as the pain free walking distance using a standardized treadmill were performed. Optimal results of muscle tissue oxygen pressure (pO2) behaviour after pedalergometric exercise test as well as muscular performance on the treadmill were found using isovolemic hemodilution at an average hematocrit value of 40.60%. In contrast, hypervolemic hemodilution at a comparable hematocrit level (40.50%) induced a "retarded reactive hyperoxia" and only a moderate increase of painfree walking distance.
authors.affiliation: Abteilung für Angiologie, Universitätsklinikums, Frankfurt am Main.
authors.forename: H G
authors.initials: HG
authors.lastname: Höffkes
authors.forename: K
authors.initials: K
authors.lastname: Saeger-Lorenz
authors.forename: A M
authors.initials: AM
authors.lastname: Ehrly
mesh_terms: D000328:Adult; D000368:Aged; D001157:Arterial Occlusive Diseases / Q000503:physiopathology / Q000628:therapy*; D001809:Blood Viscosity / Q000502:physiology; D001810:Blood Volume / Q000502:physiology; D005080:Exercise Test / Q000379:methods*; D006438:Hemodilution / Q000379:methods*; D006801:Humans; D007383:Intermittent Claudication / Q000503:physiopathology / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D009132:Muscles / Q000378:metabolism*; D010101:Oxygen Consumption / Q000502:physiology*
vernacular_title: Einfluss einer stufenweisen hypervolämischen versus isovolämischen Hämodilution bei Patienten mit Claudicatio intermittens auf den Muskelgewebesauerstoffdruck unter Belastungsbedingungen.