EFFECT OF ANAESTHETIC TECHNIQUE ON BLOOD LOSS IN TERMINATION OF PREGNANCY

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Abstract
Seventy-five patients were anaesthetized for termination of pregnancy by suction curettage using four methods of anaesthesia. Blood loss was measured with a haemoglobin dilution technique. The patients' opinion of the anaesthetic was recorded. Blood loss was unacceptably high with thiopentone, nitrous oxide and oxygen with trichloro-ethylene compared with the other three techniques which were: diazepam/pentazocine, paracervical block with incremental doses of methohexitone, thiopentone, suxa-methonium and hyperventilation with nitrous oxide and oxygen, and ketamine with paracervical block. Postoperative side effects occurred least frequently in association with the diazepam/pentazocine technique.

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