Comparison of Ultrasound Guided Thoracic Erector Spinae Plane Block, Thoracic Paravertebral and Thoracic Epidural for Pain Management after Nephrectomy

INTERVENTION: Thoracic Epidural Block ultrasound guided erector spinae block US guided Thoracic Paravertebral Block CONDITION: ; Urological and Genital Diseases ; Anaesthesia Anaesthesia Urological and Genital Diseases PRIMARY OUTCOME: ? Total opioid consumption in the first day after surgery. SECONDARY OUTCOME: ? Complications occurrence (hypotension, pneumothorax, Local Anesthetic Systemic Toxicity (LAST), Failure). ? Time to first rescue analgesic demand after surgery ? Visual Analogue score (VAS). INCLUSION CRITERIA: Patients of both sex ASA physical activity I, II aged 18 years or older admitted for elective nephrectomy surgery