[Dependence of nocturnal bronchial obstruction on sleep position].
Patients with bronchial obstructions often have problems to stay asleep at night. The interaction between sleep position and bronchial obstructions has not been investigated until now. A total of 20 patients was included in this study. All patients were recorded one night in our sleep laboratory with a parallel recording of lung sounds using a commercial Pulmotrack 1010 system. The bronchial obstructions were lower in lateral position than in supine position for both tracheal and chest sounds (p = 0,083 and p = 0,036; n.s.). This effect seemed to be especially high in patients with many obstruction episodes. From our results we can conclude that there is a small dependence of bronchial obstructions from sleep position. Further investigations are needed to verify this result.
Gross
V
V
Philipps-Universität Marburg, 35033 Marburg, Deutschland. grossv@mailer.uni-marburg.de
Reinke
C
C
Penzel
T
T
Becker
H F
HF
Vogelmeier
C F
CF
D000328:Adult; D000368:Aged; D004867:Equipment Design; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017286:Polysomnography / Q000295:instrumentation*; D011187:Posture / Q000502:physiology*; D012135:Respiratory Sounds / Q000502:physiology*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D020181:Sleep Apnea, Obstructive / Q000503:physiopathology*; D014159:Transducers