| Title |
Causes of suboptimal preoxygenation before tracheal intubation in elective and emergency abdominal surgery / |
| Authors |
Kauzonas, Evaldas ; Kalinauskaitė, Miglė ; Miškinytė, Sigutė ; Bubulytė, Silvija ; Kontrimavičiūtė, Eglė |
| DOI |
10.2478/prolas-2022-0055 |
| Full Text |
|
| Is Part of |
Proceedings of the Latvian Academy of Sciences. Section B, Natural, exact, and applied sciences.. Riga : Walter de Gruyter GmbH. 2022, vol. 76, no. 3, p. 361-365.. ISSN 1407-009X. eISSN 2255-890X |
| Keywords [eng] |
general anaesthesia ; end-tidal oxygen ; EtO2 |
| Abstract [eng] |
Optimal preoxygenation (PO) prior to tracheal intubation reduces the risk of arterial desaturationand prolongs the period of safe apnoea. The common methods of PO are mask ventilation with100% O2for 3–5 minutes or, alternatively, asking the patient to take eight deep breaths in aminute. Our study group conducted a prospective study to assess the impact of the most com-mon risk factors on PO and to compare the efficiency of PO in patients undergoing elective andemergency abdominal surgery without premedication. PO was performed using mask ventilationwith 6 l/min of 100% oxygen for 5 minutes. End-tidal oxygen (EtO2) was documented in 30-second increments. We found that optimal PO (EtO2> 90%) was not achieved by almost half ofthe patients (46%) and that this was more common in the elective surgery group. Effective POwas not impacted by any of the evaluated risk factors for suboptimal oxygenation. Despite thesefindings, we believe that the identification of potential risk factors is crucial in the pre-anaesthesiastage, given the benefits of optimal PO. |
| Published |
Riga : Walter de Gruyter GmbH |
| Type |
Journal article |
| Language |
English |
| Publication date |
2022 |
| CC license |
|
