摘要:

The differential arrangement of two pneumotachographs in a gas blow-by system, upstream and downstream from the patient connection port, permits accurate measurement of the tracheal air flow without introduction of flowmeter dead-space. The method does not require but will accept a constant background gas flow rate and permits humidification and easy switching of the inhalant gases. The admissible background flow rates limiting measurement errors below 5% in the range of tidal volumes relevant for newborns for two sizes of commercially available pneumotachographs were found to be 0–3 L/min and 0–12 L/min, respectively. The lack of restrictions imposed on the properties of the background flow source makes the differential system especially suitable for measurement of ventilation and pulmonary mechanics in spontaneously breathing or mechanically ventilated newborn infants.

ISSN:0090-3493    

出版商:OVID    

年代:1981

数据来源: OVID

摘要:

The authors report a case of tracheal injury after tracheostomy with subsequent prolonged endobronchial intubation and ventilation in a quadriplegic patient. A soft silastic endotracheal prosthesis was specially constructed to replace the endobronchial tubes which achieved satisfactory air seal without an inflatable cuff, and without further trauma to the tracheal stump. The low airflow resistance of the prosthesis probably contributed to the later establishment of satisfactory ventilation by phrenic pacing.

ISSN:0090-3493    

出版商:OVID    

年代:1981

数据来源: OVID

ISSN:0090-3493    

出版商:OVID    

年代:1981

数据来源: OVID

ISSN:0090-3493    

出版商:OVID    

年代:1981

数据来源: OVID