Analgesic and Respiratory Outcomes in Patients Receiving Continuous Bilateral Erector Spinae Plane Block Compared to Continuous Preperitoneal Catheter Wound Infusion After Upper Abdominal Surgery

Analgesic and Respiratory Outcomes in Patients Receiving Continuous Bilateral Erector Spinae Plane Block Compared to Continuous Preperitoneal Catheter Wound Infusion After Upper Abdominal Surgery: a Randomized Double-blind Study

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.

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.