Patients will be placed in the sitting position, leaning forward. After skin disinfection using chlorhexidine solution, target spinous processes of T1- T5 will be identified and at parasagittal plan at 2.5 cm, skin wheel will be raised using 1% lidocaine. A 20-gauge, bevel needle will be advanced until the transverse process is located. The depth from skin to transverse process will be marked/identified by needle marking. The needle will be withdrawn 1-2 cm and angled down (walked off the transverse process). The needle will be re-advanced 1cm past the initial marking. After negative aspiration, 4-5 ml of 0.25% bupivacaine will be slowly injected. The same procedure will be repeated at each level from T2 to T6 ensuring total dose of bupivacaine does not exceed the maximum dose recommended. [13]