Background:
TAP block is a method to provide postoperative analgesia in lower abdominal surgery. With this work we evaluated the postoperative analgesic efficacy of ultrasound-guided TAP block in patients undergoing cesarean delivery using the Phannenstiel incision.

Materials and methods:
We developed a prospective and randomized clinical study in which 30 patients undergoing caesarean section, elective or emergency, were randomly divided into two groups. Both groups received 0.5% hyperbaric bupivacaine anesthesia and fentanyl. One group underwent ultrasound guided TAP block, while the other group did not receive a block. An attempt was made to assess the need for rescue analgesia; compare times to the performance of analgesic rescues; and compare the scores of postoperative pain to movement and at rest, using the Numerical Scale, at the first and second hour after the conclusion of the procedure between both groups.

Results:
Compared to the control group, the TAP block reduced the need for postoperative analgesic rescues (72% vs. 32%) and the numerical scale scores in the pain assessment. Median (min.- max.) At hour: at rest 0 (0-5) vs 0 (0-1) and at movement 2 (0-7) vs 0 (0-2) and at two hours postoperatively: at rest 3 (0-10) vs 0 (0-6) and at movement 5 (0-10) vs 3 (0-9) (p <0.001).

Conclusions:
Regional anesthesia techniques (such as TAP Block) have a potential that still needs to be developed. The ultrasound guided TAP block, as part of a multimodal analgesic regimen, provided superior analgesia than a standard intravenous analgesic regimen after performing a cesarean section.régimen de analgesia endovenosa estándar tras la realización de una cesárea.


01 / Blocking of the abdominal transverse plane (tap block) guided by ecography after the cesarea.