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ISSN 0185-3252 (Print)
Revista de la Asociación Médica del Centro Médico ABC

2017, Number 4

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An Med Asoc Med Hosp ABC 2017; 62 (4)

Comparison between mechanical ventilation with and without positive end-expiratory pressure and the gradient of carbon dioxide in laparoscopy

Chávez VJV, Juárez PJS, Licona OS

Language: Spanish
References: 14
Page: 251-255
PDF size: 221.52 Kb.


ABSTRACT

Background: The use of positive end-expiratory pressure during mechanical ventilation in laparoscopic surgery contributes to the decrease of the gradient end-tidal carbon dioxide (EtCO2 )-arterial blood pressure of carbon dioxide (PaCO2 ). Objective: We compared the values of the difference between EtCO2 and PaCO2 using mechanical ventilation with and without positive end-expiratory pressure (PEEP) in patients undergoing elective laparoscopic surgery. Material and methods: A comparative, longitudinal study was conducted, which included a total of 22 patients scheduled for laparoscopic cholecystectomy, who were divided randomly into two groups: 1, mechanical ventilation with volume control 6.6 mL/kg, with 8 cmH2 O of PEEP; 2, mechanical ventilation with volume control 6.6 mL/kg. The tidal volume delivered, average breathing rate, PaCO2 , EtCO2 , and pneumoperitoneum pressure were evaluated. Statistical analysis was performed with the Mann-Whitney U test through the SPSS program version 22. Results: No statistically significant difference was found in the EtCO2 and PaCO2 gradient in the groups that used PEEP against those who did not use it. Conclusions: There are likely no significant differences in the gap between EtCO2 and PaCO2 when using mechanical ventilation by volume control with or without PEEP. The value of PaCO2 may be lower than that of EtCO2 .


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