Low anaesthetic waste gas concentrations in postanaesthesia care unit
| Autor: | Nils Dennhardt, Robert Sümpelmann, Werner Klingler, Sebastian Heiderich, Wolfgang Koppert, Christian Thoben, Stefan Zimmermann, Terence Krauß |
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| Rok vydání: | 2018 |
| Předmět: |
Air Pollutants
Occupational 01 natural sciences Sevoflurane law.invention Pacu Waste gas 03 medical and health sciences 0302 clinical medicine 030202 anesthesiology law Germany Occupational Exposure Humans Medicine Prospective Studies biology business.industry Spectrum Analysis 010401 analytical chemistry Medical school Outcome measures biology.organism_classification 0104 chemical sciences Postanaesthesia care Anesthesiology and Pain Medicine Air Pollution Indoor Anesthesia Anesthetics Inhalation Ventilation (architecture) Observational study business Recovery Room medicine.drug |
| Zdroj: | European Journal of Anaesthesiology. 35:534-538 |
| ISSN: | 0265-0215 |
| DOI: | 10.1097/eja.0000000000000785 |
| Popis: | Background Volatile anaesthetics are a potential hazard during occupational exposure, pregnancy or in individuals with existing disposition to malignant hyperthermia. Anaesthetic waste gas concentration in postanaesthesia care units (PACU) has rarely been investigated. Objective(s) The current study aims to assess concentrations of volatile anaesthetics in relation to room size, number of patients and ventilator settings in different PACUs. Design A prospective observational study. Setting Two different PACUs of the Hannover Medical School (Hannover, Germany) were evaluated in this study. The rooms differed in dimensions, patient numbers and room ventilation settings. Patients During the observation period, sevoflurane anaesthesia was performed in 65 of 140 patients monitored in postanaesthesia unit one and in 42 of 70 patients monitored in postanaesthesia unit two. Main outcome measures Absolute trace gas room concentrations of sevoflurane measured with a compact, closed gas loop high-resolution ion mobility spectrometer. Results Traces of sevoflurane could be detected in 805 out of 970 samples. Maximum concentrations were 0.96 ± 0.20 ppm in postanaesthesia unit one, 0.82 ± 0.07 ppm in postanaesthesia unit two. Median concentration was 0.12 (0.34) ppm in postanaesthesia unit one and 0.11 (0.28) ppm in postanaesthesia unit two. Conclusion Low trace amounts of sevoflurane were detected in both PACUs equipped with controlled air exchange systems. Occupational exposure limits were not exceeded. |
| Databáze: | OpenAIRE |
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