HAEMODYNAMIC CHANGES FOLLOWING SPINAL ANAESTHESIA: A COMPARISON IN PATIENTS UNDERGOING TURP BETWEEN PRELOADING WITH CRYSTALLOIDS AND COLLOIDS

Spinal anesthesia consists of temporary interruption of nerve transmission within the subarachnoid space produced by injection of a local anesthetic solution into cerebrospinal fluid. Used widely, safely and successfully for more than 100 years, spinal anesthesia has many potential advantages over general anesthesia, especially for operations involving the lower abdomen,the perineum and the lower extremities. The advantages claimed with spinal analgesia for such operation include reduced blood loss and better operating conditions , minimal effect of arterial oxygen and carbon dioxide tensions of the patient , preference by surgical and nursing staff and a generally comfortable recovery. The technique can permit early detection of complications such as TUR syndrome and bladder perforation.[1,2].In our study conducted in the Department of Anaesthesiology,SKIMS on 80 male patients aged 45-75 years,undergoing TURP surgery under spinal anaesthesia,we studied the haemodynamic changes after the spinal anaesthetic and compared haemodynamic response and hypotension between patients preloaded with crystalloids and those preloaded with colloids.We found no significant difference between the groups.