title: Malfunction of the Expiratory Valve During Spontaneous Ventilation.
abstract: The integrity of inspiratory and expiratory unidirectional valves is very important in the normal functioning of an anesthetic circle breathing system. We describe our experience of an emergency manipulation of a ceramic valve disk of a circle breathing system (Dräger Fabius GS, Dräger Medical Inc) that altered its characteristics and led to rebreathing only during spontaneous ventilation.
authors.forename: Byrappa
authors.initials: B
authors.lastname: Vinay
authors.forename: Kadarapura Nanjundaiah Gopala
authors.initials: KN
authors.lastname: Krishna
authors.forename: Manohar
authors.initials: M
authors.lastname: Nitin
mesh_terms: D004868:Equipment Failure; D006407:Hematoma, Epidural, Cranial / Q000601:surgery; D006801:Humans; D007431:Intraoperative Complications; D008297:Male; D012123:Pulmonary Ventilation; D012121:Respiration, Artificial / Q000295:instrumentation*; D013701:Temporal Bone / Q000601:surgery; D055815:Young Adult