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  • Title: [Necessity to control endexpiratory CO2-concentration during laparoscopic sterilisation under general anaesthesia with controlled ventilation (author's transl)].
    Author: Voigt E.
    Journal: Anaesthesist; 1978 May; 27(5):219-22. PubMed ID: 149508.
    Abstract:
    During laparoscopy and intraabdominal insufflation of CO2 cardio-respiratory accidents following increased PaCO2 are possible. The continuous measurement of endexpiratory CO2-concentration by infrared absorption spectrometry is a simple method for controlling the level of ventilation. Respiratory acidosis under controlled artificial ventilation during laparoscopy can thus be avoided. Endexpiratory CO2 concentrations were measured in 8 patients who underwent laparoscopy with CO2 insufflation for the performance of sterilization. The CO2 concentrations rose during the first 10 minutes of insufflation, then remained constant. The endexpiratory CO2 then returned to the original levels within 6 minutes after deflation. Cardiovascular disturbances and hypoxia can occur in conjunction with CO2 insufflation and can be avoided by monitoring the endexpiratory CO2 concentrations by infrared absorption spectrometry.
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