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Gazzetta Medica Italiana Archivio per le Scienze Mediche 2013 January-February;172(1-2):21-4

language: English

Low flow anesthesia change intraoperative hemodynamic and respiratory parameters during general anesthesia

Taghavi Gilani M. 1, Bameshki A. 1, Ghoryani H. 1, Nami S. R. 1, Khashayar P. 2

1 Department of Anesthesia and Intensive Care, Mashhad University of Medical Sciences, Mashhad, Iran;
2 Endocrinology and Metabolism Research Center, Tehran University of Medical Sciences, Tehran, Iran


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Aim: While high flow systems with rates higher than 6 lit are more popular among anesthesiologists, its common use is limited because of its high cost and the high risk of complications such as environmental pollution. The aim of the present study was to evaluate the incidence of certain complications following the application of low flow systems.
Methods: The prospective study was conducted on pregnant women undergoing elective cesarean section between January 2008 and January 2009. Parameters such as ECG, heart rate, SpO2, NIBP, temperature, EtCO2 and iCO2 were monitored throughout the operation time. At first 8lit O2 was used and then anesthesia was induced with thiopental and succinylcholine. Mothers were then intubated. The O2 and N2O flow was reduced by 2 lits every five minutes.
Results: Following the intubation process, the changes recorded in the blood pressure and heart rate values were significant. As for, SpO2, EtCO2 and temperature, the changes were not statistically significant.
Conclusion: Low flow rate can be used in the presence of capnograph and fresh sodalime.

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