ASSESSMENT OF THE HEMODYNAMIC AND RESPIRATORY EFFECTS OF LOW FLOW GENERAL ANESTHESIA IN LAPAROSCOPIC CHOLECYSTECTOMY SURGERY

Dr. AKM Faizul Hoque*, Dr. Ashfaqul Islam, Dr. Dabasis Kumar, Dr. Farida Khan, Dr. Jeevan Pacchad, Dr. Ranjan Kumar Nath

ABSTRACT

Low flow anesthesia technique was first introduced by by Foldes in 1952 now it is going popularity across the globe due to availability of modern anesthetic machine, pollution free and economical. This study was designed to find any difference between high flow and low general anesthesia using halothane as an anesthetic during laparoscopic cholecystectomy in adult. Observe and compare the hemodynamic and respiratory effects under high flow general anesthesia and low flow general anesthesia in laparoscopic cholecystectomy. Materials and Method: a prospective randomized single-blind comparative study total 68 patients of 25 - 40 years old ASA I/ II scheduled for laparoscopic cholecystectomy enrolled. The patients were randomly allocated into two equal groups by an online based software generated randomization divided the patients into two equal group assigned; high flow general anesthesia (6L/minute, group A n=17) and Low flow general anesthesia (3L/minutes, group A n=17) technique. A standardized checking of anesthetic machine fitted with a leak-proof circle breathing system with CO2 absorber and absorbent and calibration of vaporizer were carried before induction for every cases. During surgery heart rate, blood pressure percentage of hemoglobin saturated with oxygen (SpO2) and end tidal carbon dioxide (EtCO2) were carefully recorded. ABG analysis was done after intubation and immediate before extubation. Recovery time after extubation were also recorded. Conclusions: There were no difference between high-flow anesthesia and low -flow halothane anesthesia technique on the hemodynamics, oxygen saturation and ETCO2 level. pulmonary functions are comparable to high-flow halothane anesthesia in patients undergoing laparoscopic cholecystectomy.

Keywords: SpO2, EtCO2.