Determining collateral ventilation during bronchoscopy: unanswered questions

Determining collateral ventilation during bronchoscopy: unanswered questions.

In their recent review, Shah et al made an excellent presentation of the latest perspectives of lung volume reduction with endobronchial valves, emphasising the importance of collateral ventilation (CV) and fissure analysis on selecting proper candidates, as shown in the VENT studies. 3 The authors described representative cases of patients with positive and negative CV using the Chartis system...

Automatic ventilation during bronchoscopy.

Sir,—The recent paper (Bennetts, 1977) describing the use of the Bird Mark 2 Ventilator and the jet injection technique for bronchoscopy states, ".. . there is dilution with air by as much as 50%". In his original paper describing the injection technique, Sanders (1967) demonstrated entrainment volumes in the region of 5 : 1 with adult bronchoscopes. Recent measurements in our laboratory using ...

Alveolar ventilation during bronchoscopy.

30 33 34 39 eFrom the Department of Medicine, University of Manitoba, and the Clinical Investigation Unit of the Winnipeg General Hospital.

Ventilation during bronchoscopy.

FOR BRONCHOSCOPY in the past, various techniques have been used for anaesthesia: ( 1 ) Bronchoseopy without anaesthesia can be used only on infants or moribund patients, mainly for the purpose of providing tracheobronchial toilet. Special techniques of restraint must be used. A thorough diagnostic examination of the tracheobronchial tree is not possible. (2) Bronchoscopy with local anaesthesia ...

E-Learning: some unanswered questions