Automatic jet ventilation in children anaesthetized by the T-piece circuit
| Autor: | Anis Baraka, Chakib Ayyoub, Musa Muallem, Gilbert Chidiac |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
business.industry
chemistry.chemical_element Injector Nitrous oxide respiratory system Oxygen law.invention chemistry.chemical_compound Jet ventilation Anesthesiology and Pain Medicine Volume (thermodynamics) chemistry law Anesthesia Pediatrics Perinatology and Child Health Ventilation (architecture) Medicine Solenoid valve business Tidal volume circulatory and respiratory physiology |
| Zdroj: | Pediatric Anesthesia. 4:169-172 |
| ISSN: | 1460-9592 1155-5645 |
| DOI: | 10.1111/j.1460-9592.1994.tb00154.x |
| Popis: | Summary Investigation was carried out in ten children aged between one month and six years, who were anaesthetized by the T-piece circuit. The volume of the reservoir tubing of the T-piece was 250 ml. Ventilation was controlled automatically by oxygen jets which were delivered via an injector attached to the reservoir tubing. The oxygen jets were regulated by an electronically-controlled solenoid valve. The children were ventilated by a tidal volume about 12 ml±kg−1 at a rate of 12-20 per min depending on their age, while the FGF varied between 3 and 6 l min−1 depending on their body weight. The resulting FIO2 ranged between 0.32 and 0.34 which was expected from the oxygen:nitrous oxide mixture (1:2), denoting no mixing of the oxygen jets with the anaesthetic mixture. The PAco2 was ventilation-dependent, and ranged between 4±6-5±3 kPa (35-41 mmHg). The results suggest that automatic jet ventilation facilitates controlled ventilation in children anaesthetized by the T-piece circuit, while maintaining the original simplicity of the T-piece. |
| Databáze: | OpenAIRE |
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