K Hinkson-LaCorbiniere1, K T Johnny1, S Kinthala2. 1. Department of Anaesthesiology and Surgical Intensive Care, Queen Elizabeth Hospital, Martindales Road, Bridgetown, Barbados. 2. Department of Anaesthesiology and Surgical Intensive Care, Queen Elizabeth Hospital, Martindales Road, Bridgetown, Barbados. sudhakarkinthalaresearch@yahoo.co.uk.