The present stratified randomized study aimed to compare the analgesic efficacy and safety profile of ESPB and TAPB used for postoperative pain management in obese and morbidly obese women undergoing CS.

The present stratified randomized study aimed to compare the analgesic efficacy and safety profile of ESPB and TAPB used for postoperative pain management in obese and morbidly obese women undergoing CS. The present study will include ASA I-II women scheduled for elective CS under intrathecal anesthesia. Patients will be excluded if they had local infection, bleeding disorder or known allergy to any of the study medications. This study defines obesity as body mass index (BMI) ≥ 30 kg/m2 while morbid obesity is defined as BMI ≥ 40 kg/m2 assessed in the last pre-pregnancy visit (Sagi-Dain et al., 2021). The study will include normal weight women (n=86), obese women (n=86) and morbidly obese women (n=86).

Inclusion Criteria:

• ASA I-II women scheduled for elective CS under intrathecal anesthesia.

Exclusion Criteria:

• had local infection, bleeding disorder or known allergy to any of the study medications