During endoscopic surgery the position of patient is

The reverse Trendelenburg position is one in which a person is lying supine with the head elevated higher than the rest of the body and the feet suppoed with a foot board. It is the opposite of the Trendelenburg position, in which a person is placed in a supine position with the foot of the bed raised about 30 to 45 degrees. Reverse trendelenburg position improves endoscopic field of view and reduces intraoperative blood loss compared to other positions. It also helps to achieve an effective level of epidural or spinal anesthesia, prevent pulmonary aspiration due to vomiting. In lithotomy position, the patient lies on his back, the legs are flexed in the hip (90 degrees) and abducted (30 degrees) in the hip. The knees are bent 70 to 90 degrees, the lower legs are suppoed on padded leg shells.This position of the patient is needed for examinations or operations in urology, gynecology or proctology. The lithotomy position is also used as a common position for childbih.