Comparison of unilateral spinal anesthesia and epidural anesthesia

INTERVENTION: Group A: After subarachnoid injection in Sitting position, patients are going to supine positions immediately and then Tilt to the surgical site (45 degrees). L2‐L3 and L3‐L4 space spinal Quinke G25 puncture spinal has done Approach midline. Then 3 cc Marcaine 0/5% is injected. Group B: Patients receive epidural anesthesia. In Sitting position the epidural catheter is threaded the Tuohy G17 needle through L2‐L3 or L3‐L4 space. Loss of resistance techniques used to find the space. Epidural test dose of lidocaine ml 3 2% + µ / ml 5 epinephrine injected into the epidural space to ensure the integrity. After injected 15ml Marcaine 0/5%, the patient is given into supine position. Intervention 1: Group A: After subarachnoid injection in Sitting position, patients are going to supine positions immediately and then Tilt to the surgical site (45 degrees). L2‐L3 and L3‐L4 space spinal Quinke G25 puncture spinal has done Approach midline. Then 3 cc Marcaine 0/5% is injected. Intervention 2: Group B: Patients receive epidural anesthesia. In Sitting position the epidural catheter is threaded the Tuohy G17 needle through L2‐L3 or L3‐L4 space. Loss of resistance techniques used to find the space. Epidural test dose of lidocaine ml 3 2% + µ / ml 5 epinephrine injected into the epidural space to ensure the integrity. After injected 15ml Marcaine 0/5%, the patient is given into supine position. Treatment ‐ Other CONDITION: Other complications of surgical and medical care, not elsewhere classified Spinal and epidural anesthesia. ; Other complications of surgical and medical care, not elsewhere classified PRIMARY OUTCOME: Arterial saturation oxygen. Timepoint: 12 month. Method of measurement: monitoring system. Backage. Timepoint: 12 month. Method of measurement: checklist. Blood pressure. Timepoint: 12 month. Method of measurement: manometer. Headache. Timepoint: 12 month. Method of measurement: checklist. Hearth rate. Timepoint: 12 month. Method of measurement: monitoring system. Nausea and vomiting. Timepoint: 12 month. Method of measurement: checklist. SECONDARY OUTCOME: Backache. Timepoint: 12month. Method of measurement: checklist. Headache. Timepoint: 12month. Method of measurement: checklist. Heart rate. Timepoint: 12month. Method of measurement: manometer. Hypotension. Timepoint: 12month. Method of measurement: manometer. Nausea and vomiting. Timepoint: 12month. Method of measurement: checklist. INCLUSION CRITERIA: INCLUSION CRITERIA:patient satisfactory; Elective unilateral spinal anesthesia or epidural anesthesia for unilateral below T10 sensory level surgeries; ASA Class1‐2(American Society of Anesthesiologists) Exclusion criteria: Patient refusal; Patient disability to remain calm in needle puncture; Increasing intra cranial pressure; Skin infection; Hypervolemia; Sensitive to local anesthesia drugs; Peripheral neuropathy; Nervous disorders; Sever hypotension; Cardiovascular disease; Hepatic disorders; Kidney failure