No significant changes occurred in haemodynamics and electrolytes, but there was a trend towards metabolic acidosis. Arterial blood gases should be monitored during and after PCNL in cases with prolonged irrigation time, repeated percutaneous interventions and patients having compromised renal function and metabolic status.

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Generalized hypoplasia of the larynx and trachea is a very rare condition with only one case reported in the literature. A pregnant woman presented for an emergency laparotomy under general anaesthesia. Endotracheal intubation with conventional sizes of tracheal tubes failed, despite a Cormack and Lehane grade I laryngoscopic view. Subsequent investigations demonstrated generalized hypoplasia of the larynx and trachea. In this report, successful anaesthetic management of this case is discussed along with other possible options.