US-guided Thoracic Spinal Epidural Anesthesia VS GA for Abdominal and Breast Surgeries

ultrasound guided thoracic segmental spinal anesthesia at the level of T10 interlaminar space , patients will be in sitting position, spinal needle is then introduced through the epidural needle not more than 0.5 cm beyond the Dura matter. 2cc of heavy Marcaine plus 25 ug fentanyl are injected through the spinal needle.