Total spinal anaesthesia.
D000005:Abdomen / Q000601:surgery; D000328:Adult; D000368:Aged; D000775:Anesthesia, Spinal; D001315:Australia; D001775:Blood Circulation; D004569:Electroencephalography; D005069:Evaluation Studies as Topic; D005260:Female; D006261:Headache / Q000209:etiology; D006801:Humans; D008161:Lumbosacral Region; D008297:Male; D008875:Middle Aged; D009132:Muscles / Q000502:physiology; D011183:Postoperative Complications; D013119:Spinal Cord Injuries / Q000209:etiology