The effect of low flow anesthesia on hemodynamic and peripheral oxygenation parameters in obesity surgery

Abstract

To investigate the effects of low-flow anesthesia on hemodynamic parameters and recovery from anesthesia in obese individuals undergoing laparoscopic surgery. Methods: This randomized-controlled and prospective study included 44 obese patients who underwent laparoscopic sleeve gastrectomy operation. The patients were randomly allocated into 2 groups as low-flow and high-flow anesthesia. Further, the groups compared in terms of hemodynamic parameters, anesthesia recovery times, operation times, and arterial blood gas parameters. Results: The groups were similar with respect to demographic data. Heart rate, peripheral oxygen saturation, arterial blood pressure measurements, endtidal, and CO 2 , lactate levels measurements were similar Original Article in both groups during the entire procedure. There was also no statistically significant difference in terms of arterial blood gas parameters or anesthesia recovery periods. Conclusion: Low-flow anesthesia in laparoscopic obesity surgery seems to be safer compared to high-flow anesthesia in terms of the adequacy of tissue perfusion, depth of anesthesia, and postoperative recovery.

Effect of real-time oxygen consumption versus fixed flow-based low flow anesthesia on oxygenation and perfusion: a randomized, single-blind study

“…17 The effect of LFA on hemodynamics and recovery, even in obese individuals undergoing laparoscopic surgery, has been reassuring and safer regarding the adequacy of tissue perfusion. 18 Even hypotensive anesthesia with a low flow was not detrimental to oxidative stress as measured using ischemia-modified albumin and thiol/disulfide homeostasis. 19 Our study shows that VO 2 -based FGF adjustment and N 2 O can be used safely until 4 hours in patients with a body mass index of 18.5 to 29.9 kg/m 2 , and FGF of 500 mL/min can also be achieved.…”

The Effect of Low-Flow and Normal-Flow Desflurane Anesthesia on the Frontal QRS-T Angle in Patients Undergoing Rhinoplasty Operation: A Randomized Prospective Study

“…The effect of LFA on hemodynamic parameters was evaluated in many studies [3,[24][25][26]. It was found that LFA did not significantly change the hemodynamic parameters when compared to NFA.…”

Tempo de recuperação pós anestésica em pacientes obesos – Revisão de literatura

“…O tempo de recuperação dependerá de diversas variáveis, abrangendo a farmacodinâmica e farmacocinética dos agentes anestésicos utilizados, assim como a técnica anestésica e o tipo de procedimento cirúrgico. A anestesia de baixo fluxo decreta-se como qualquer técnica que empregue um fluxo de gás menor que a ventilação alveolar e, em obesos demonstrou resultados satisfatórios quando se diz a respeito do tempo de recuperação, preservação de calor e manutenção da umidade do sistema respiratório, ajudando a preservar as funções pulmonares, podendo assim ser utilizada com segurança em pacientes obesos 26,27,28 .…”