A 17-year-old boy underwent elective nasal surgery under general anaesthesia at Linksfield Park Clinic. During the operation he suffered a hypertensive crisis, subsequent bradycardia and cardiac arrest, leading to prolonged cerebral hypoxia and permanent vegetative state. His parents sued the clinic and the anaesthetist, alleging negligent administration of drugs (notably propranolol in conjunction with cocaine), failure to foresee and prevent cardiac arrest, and negligent resuscitation including delay caused by an allegedly defective defibrillator and lack of training. The High Court separated liability from quantum, found no negligence proved, and dismissed the claim. Leave to appeal was granted.