Anesthesia: Essays and Researches 2018 12(4):907-913
Background: Fresh gas flow (FGF) during volatile inhalational agent-based anesthesia is a concern for many reasons. Advancement in anesthesia workstation (WS) and monitoring of anesthesia gas concentrations has led to the feasibility of lower flow safely. However, the practice pattern is not yet well known. The information can help us in better protocol formation. Aim: The survey was aimed to know the prevailing practice pattern of FGF and volatile agent choices and compare them among anesthesiologists of different working setups and experiences. Materials and Methods: With approval, the present cross-sectional survey was conducted using SurveyMonkey® software from January 2018 to May 2018. Anesthesiologists working in different organizations across India were approached through E-mail and WhatsApp. Anonymous responses were collected, expressed in number and percentage scale, as well as compared using INSTAT software and appropriate tests; P < 0.05 was considered statistically significant. Results: A total of 251 (15.2%) responses were received and 249 were analyzed. Overall, 87% of respondents were using anesthesia WS and 71% were using nitrous oxide as balance gas. The FGF of <600 mL/min was highest with desflurane. Minimum alveolar concentration (MAC) monitoring was very poor in nonteaching (NT) hospitals as compared to teaching hospitals; P < 0.0001. The Boyle's machine was more common in use in NT hospitals as compared to medical colleges and corporate hospitals; P < 0.0001. Conclusion: Low-flow anesthesia (LFA) use is still suboptimal, and there are ample opportunities to increase and optimize the FGF used. The use of Boyle's machine is associated with higher flow use. MAC monitoring and LFA use are poor in NTs.
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