Document Detail

Low frequency oscillatory ventilation through the suction channel of a pediatric bronchoscope.
MedLine Citation:
PMID:  2705699     Owner:  NLM     Status:  MEDLINE    
To determine whether low frequency oscillatory ventilation (LFOV) may be safely applied through the suction channel of a pediatric fiberoptic bronchoscope, we devised a system using a combination of jet ventilation and constant air suction, both delivered with a single interface valve. The system was tested on an in vitro lung model and on rabbits. With tidal volumes of 12 mL, inadvertent increase in functional residual capacity (FRC) measured in the lung model was minimal. All rabbits experienced marked hypoventilation (PaCO2 62 +/- 2 torr) on introduction of the bronchoscope, which promptly improved with administration of LFOV (PaCO2 41 +/- 4 torr). That baseline FRC remained stable indicated that air trapping did not occur. We conclude that LFOV improves ventilation in rabbits during bronchoscopy without causing air trapping. A similar system might be applied during bronchoscopy in full-term and premature infants, thus facilitating safer and more complete visualization of their airways and preserving the possibility of obtaining samples by suction.
J Nutman; W A Carlo; R L Chatburn
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Annals of otology, rhinology, and laryngology     Volume:  98     ISSN:  0003-4894     ISO Abbreviation:  Ann. Otol. Rhinol. Laryngol.     Publication Date:  1989 Apr 
Date Detail:
Created Date:  1989-05-12     Completed Date:  1989-05-12     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0407300     Medline TA:  Ann Otol Rhinol Laryngol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  251-5     Citation Subset:  AIM; IM    
Department of Pediatrics, Rainbow Babies and Childrens Hospital, Cleveland.
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MeSH Terms
Bronchoscopy / methods*
Fiber Optic Technology
Functional Residual Capacity
Respiration, Artificial / instrumentation,  methods*

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