Rahe-Meyer, N. and Solomon, C. and Vial, S. and Gruber, M. and Weilbach, C. and Piepenbrock, S. and Winterhalter, M. (2009) Comparison of breathing tube connectors during invasive bronchial procedures. ANAESTHESIA, 64 (6). pp. 666-673. ISSN 0003-2409, 1365-2044
Full text not available from this repository. (Request a copy)Abstract
Bronchoscopy and bronchial suctioning during intra-operative artificial ventilation often causes leakage from the ventilation circuit with a decrease in ventilatory parameters and possible work-place contamination with anaesthetic gases. Different connectors have been developed to reduce gas leakage. We evaluated the following connectors : VBM 2 mm, 3 mm and 5 mm, Bodai Suction-Safe, Bodai Bronch-Safe and Bodai Trach-Safe, as well as the BE 105-7, BE 105-8 and SH 7-45. Invasive bronchial instruments (catheters, bronchoscopes and bronchial blockers) with 1.67-7.33 mm diameter were used. Pressure-controlled ventilation was performed on a test lung using a ventilator. Sevoflurane concentration in the room was measured 0.2 and 1.5 m from the connector using a photo-acoustic infrared-spectroscope. The VBM connectors caused the least gas leak and ensured stability of ventilation parameters even at peak pressures when combined with smaller instruments. With instruments > 6 mm, BE 105-7, BE 105-8 and SH 7-45 connectors performed best. The Bodai connectors showed a reduced ability to prevent leakage and to keep ventilatory parameters stable. All connectors, excluding the Bodai Trach-Safe, prevented exposure to anaesthetic gases beyond the current safety recommendations when combined with the fitting instruments. The connectors showed different ranges of tightness, equivalent to different ranges of compatibility with the instruments used.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | POSITIVE-PRESSURE VENTILATION; OCCUPATIONAL-EXPOSURE; NITROUS-OXIDE; PEDIATRIC ANESTHESIA; SEVOFLURANE; PERSONNEL; CONTAMINATION; BRONCHOSCOPY; RECRUITMENT; SURGERY; |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Anästhesiologie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Sep 2020 08:44 |
| Last Modified: | 14 Sep 2020 08:44 |
| URI: | https://pred.uni-regensburg.de/id/eprint/28833 |
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