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- Title
STUDY OF MINUTE VENTILATION REQUIREMENT FOR LAPAROSCOPIC CHOLECYSTECTOMY.
- Authors
Marhatta, Moda Nath
- Abstract
This Study was curried out aiming to identify the appropriate minute ventilation (MV) required to maintain normocapnia during laparoscopic cholecystectomy with pneumoperitonium by comparing the effects of different MV on blood gas status, so that the complication and morbidity of the laparoscopic procedure could be minimised. For this purpose 48 adult patients undergoing laparoscopic cholecystectomy in the Tribhuvan University Teaching Hospital were randomly divided into three equal groups: A. B & C. Each of the group got different minute ventilation during pneumoperitonium. Group A got 120 ml/kg & group B got 140 ml/kg & group c got 160 ml/kg. But before and after the pneumoperitonium the MV was same (120 ml/kg) for all the groups. In the study 81.25% of the patients were from ASA status I and 18.75% from ASA status II. Female were 72.9% and male were 27.1%. Age of the patients ranged from 19 to 68 years among the groups. lntraoperatively arterial blood sample was taken for gas analysis and partial pressure of carbondioxide was recorded (PaCo2) before, during and after pneumoperitonium from all three groups of patients. PaCo2, results were statistically analysed and compared between the groups. PaCO2 increased significantly in group A (0.0025) and group B (p=0.0075) after initiation of pneumoperitonium. In both the groups A & B the values of PaCO2, were within normal physiological range. Unlike group A, group B bas not crossed the ideal value of PaCO2 (40 mmHg) towards hypercapnia. But in group C, PaCO2 decreased significantly (p=0.0000). PaCO2 also has decreased successively with increase of respiratory rate during pneumoperitonium.
- Subjects
VENTILATION; LAPAROSCOPY; CHOLECYSTECTOMY; BLOOD gases; DISEASES
- Publication
Journal of the Nepal Medical Association, 2004, Vol 43, Issue 151, p1
- ISSN
0028-2715
- Publication type
Article
- DOI
10.31729/jnma.601