[6 minute walking test as stress test for patients treated by intermittent self-ventilation].
BACKGROUND
Until now there are no data about the exercise capacity of patients with chronic ventilatory pump failure before and during IPPV.


METHODS
55 patients with chronic ventilatory failure-20 patients before IPPV, 35 patients during mechanical ventilation with a mean of 16.5 months-were studied by the six-minute walking test. Eight patients were sampled in a follow-up study before and during IPPV with a mean of 2 months.


RESULTS
The median walking distance was reduced to 273 in. The exercise capacity of the follow-up patients was not improved. The arterial pO2 during exercise fell markedly, arterial pCO2 increased only moderate.


CONCLUSIONS
The exercise capacity of patients with chronic ventilatory failure is markedly reduced. Because of the significant oxygen desaturation on exercise we may frequently indicate ambulatory oxygen therapy.
Wehgartner-Winkler
S
S
Zentralkrankenhaus Gauting.
Bullemer
F
F
Marx
U
U
Heindl
S
S
Karg
O
O
D000328:Adult; D000368:Aged; D002245:Carbon Dioxide / Q000097:blood; D005080:Exercise Test; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007385:Intermittent Positive-Pressure Ventilation; D008173:Lung Diseases, Obstructive / Q000209:etiology / Q000503:physiopathology / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D010100:Oxygen / Q000097:blood; D012131:Respiratory Insufficiency / Q000209:etiology / Q000503:physiopathology / Q000628:therapy*; D016138:Walking / Q000502:physiology
D002245:Carbon Dioxide; D010100:Oxygen
Der Sechs-Minuten-Gehtest als Belastungsuntersuchung für ISB-Patienten.