Liposomal Bupivacaine vs Ropivacaine for TAPBs

After induction of anesthesia, bilateral TAPB was performed under ultrasound guidance. The patients in the bupivacaine liposome group were injected with bupivacaine liposome 133mg(10ml+ 10ml 0.9% normal saline mixed into 20ml)/ point (two points in total).

Patients in ropivacaine group were given 0.25% ropivacaine 20ml/ point (two points in total).