Anaesthesia in sickle-cell states: a plea for simplicity.

505 patients with various haemoglobinopathies were given a general anaesthetic between January 1970 and February 1972. One patient with haemoglobin SC disease and one patient with sickle-cell trait (HbAS) died postoperatively. Four other patients who were sickling positive, but whose genotypes were unknown, died, one from sickle-cell crisis precipitated by haemorrhage.A simple anaesthetic technique together with good postoperative care can provide safe general anaesthesia for patients with sickle-cell states. A plea is made for simplicity in the anaesthetic management of these patients.