An unusual case of subcutaneous emphysema.
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A case is presented of a healthy 69-year-old woman who underwent elective laparoscopic cholecystectomy under general anaesthesia. As surgery proceeded she developed hypercapnia (arterial blood PaCO2 = 100 mmHg) and a related respiratory acidosis (arterial blood pH 7.07). The cause was attributed to subcutaneous insufflation and absorption of CO2, directly related to the surgical pneumoperitoneum.