Comparison of Hemodynamic Effect Between the Spinal Anesthesia and Saddle Block Using Levobupivacaine During Transurethral Resection of the Prostate in Cardiac Elderly Patients

12.5 mg of 0.5% hyperbaric levobupivacaine (2.5 ml) was given at the level of L4-5 interspaces after the free flow confirming of the cerebrospinal fluid (CSF), immediately positioned supine with one pillow supporting the head and shoulders

12.5 mg of 0.5% hyperbaric levobupivacaine (2.5 ml) was given at the level of L4-5 interspaces after the free flow confirming of the cerebrospinal fluid (CSF), placed in the sitting position for ten minutes and then supine with one pillow supporting the head and shoulders