Subject: carboxyhemoglobin
Subject: inspired oxygen fraction
Subject: general anesthesia
Year: 2017
Type: Article
Title: Carboxyhemoglobin changes in relation to inspired oxygen fraction during general anesthesia
Author: Aleksandra Gavrilovska Brzanov
Author: Maja Slaninka Miceska
Author: Biljana Kuzmanovska
Author: Maja Mojsova-Mijovska
Author: Nikola Brzanov
Author: Dimce Slaveski
Abstract: Introduction: Measurement of carboxyhemoglobin could be a new method for evaluation of the severity of inflammatory airway disease, acute organ dysfunction,or stress by surgery and anesthesia. To use this measurement during mechanical ventilation, it is important to clarify the effects of factors that interfere with carboxyhemoglobin levels. The aim of our study was to investigate the perioperative changes of carboxyhemoglobin to inspired oxygen fraction during general anesthesia and mechanical ventilation. Our second aim was to evaluate the effect of preoxygenation on the level of carboxyhemoglobin. Methods: The study included 30 patients scheduled for urologic surgery under general endotracheal anesthesia, aged 18–60 years, divided into two groups. The study group comprised patients who were smoking cigarettes or tobacco pipe, while the control group included non-smokers. In both groups carboxyhemoglobin levels were determined preoperatively, after preoxygenation, and one hour after induction in anesthesia. Results: carboxyhemoglobin levels were decreased after preoxygenation in both groups. One hour after induction in anesthesia under mechanical ventilation with inhaled fraction of a mixture of O2 (50%) and air (50%) the average values of carboxyhemoglobin between the two groups were different. The average values of carboxyhemoglobin between the two groups in all three time points were statistically significantly different (p=0.00). Conclusion: Changes in carboxyhemoglobin concentrations in arterial blood occur during general anesthesia and mechanical ventilation, although these amplitudes are small when compared to carbon monoxide intoxication. It is likely that organ perfusion and functions are affected by these monoxide gas mediators during surgery
Publisher: Journal of Serbian Association of Anesthesiologists and Intensivists
Relation: SERBIAN JOURNAL OF ANESTHESIA AND INTENSIVE THERAPY
Identifier: oai:repository.ukim.mk:20.500.12188/8446
Identifier: 2466-488X
Identifier: http://hdl.handle.net/20.500.12188/8446
