Abdominal Cancer Surgery
Conditions
Brief summary
We aim to compare the postoperative analgesic and respiratory outcomes in patients receiving continuous bupivacaine infusion via bilateral erector spinae catheters versus preperitoneal catheters in upper abdominal surgeries.
Interventions
An ultrasound linear probe is going to be placed in a longitudinal orientation 3 cm lateral to the T6 spinous process corresponding to the T5 transverse process. . Local infiltration with 2% of lignocaine at the site of needle insertion is going to be administered. Using in plane approach an 18 G Tuohy needle will be inserted in caudal-cephalad direction, until the tip is deep to erector spinae muscle, as evidenced by visible hydro-dissection below the muscle plane, and on injection of 5 ml of normal saline.
Towards the end of surgery, a multiholed 15-cm Anesthesia catheter will be placed in the preperitoneal space (the subfascial space between the peritoneum and posterior fascia) under direct vision and to be tunneled via the rectus sheath to the skin, rolled out and exiting laterally and stabilized with an adhesive tape on skin.
Sponsors
Study design
Eligibility
Inclusion criteria
* ASA physical status I-II, weighing 50-90 Kg with Body Mass Index (BMI) 18.5- 29.9 kg/m2
Exclusion criteria
* ASA physical status ≥III, pregnancy, body mass index \>30 kg/m2, preoperative opioid consumption, patient's refusal and contraindications of the use of spirometry or either of the truncal blocks under the study including; respiratory, cardiac, neurological, mental or coagulation disorders.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Total Morphine consumption | 48 hours |