Bloqueo TAP en analgesia post cirugía bariiátrica / TAP block and bariatric surgery analgesia

unio 25, 2017. No. 2730

Infiltración del plano transversus abdominis en banda gástrica laparoscópica: Un estudio piloto. Transversus abdominis plane infiltration for laparoscopic gastric banding: A pilot study. Jr GS1, Fitzgerald P1, Ahmad S1, Kim J1, Rahangdale R1, McCarthy R1. World J Gastrointest Surg. 2014 Feb 27;6(2):27-32. doi: 10.4240/wjgs.v6.i2.27. Abstract AIM: To estimate an effect size for the transversus abdominis plane (TAP) infiltration on quality of recovery in patients undergoing laparoscopic gastric band surgery. METHODS: The pilot study was a randomized, double blinded, placebo controlled trial. Patients undergoing laparoscopic gastric band surgery were randomized to receive a bilateral TAP infiltration with 20 mL of 0.5% ropivacaine or saline. The evaluated outcomes included quality of recovery-40 (QoR-40) at 24 h, postoperative opioid consumption and pain. Data was examined using the Mann-Whitney U test. RESULTS: Nineteen subjects were recruited. There was a positive trend favoring the TAP infiltration group in global QoR-40 scores at 24 h after surgery, median [interquartile range (IQR)] of 175.5 (170-189) compared to 170 (160-175) in the control group (P = 0.06). There also a positive trend toward a lower cumulative opioid consumption in the TAP infiltration group, median (IQR) of 7.5 (2.5-11.5) mg iv morphine equivalents compared to 13 (7-21.5) in the control group (P = 0.07). Correlation analysis (Spearman's Rho) demonstrated an inverse relationship between 24 h cumulative opioid consumption and global QoR-40 scores, -0.49 (P = 0.03). CONCLUSION: The use of multimodal analgesic techniques to reduce opioid related side effects is particularly desirable in morbidlyobese patients undergoing gastric reduction surgery. The TAP infiltration seems to have a clinically important effect in reducing postoperative opioid consumption and improve quality of recovery after laparoscopic gastric band surgery in morbid obese patients. Future studies to confirm the beneficial effects of the TAP infiltration in these patients are warranted. KEYWORDS: Gastric band; Infiltration; Pain; Recovery; Transversus abdominis plane PDF Factibilidad y eficacia analgésica del bloqueo del plano transverso del abdomen después de la laparoscopía de un solo puerto en pacientes con cirugía bariátrica. Feasibility and analgesic efficacy of the transversus abdominis plane block after single-port laparoscopy in patients having bariatric surgery. Wassef M1, Lee DY1, Levine JL1, Ross RE1, Guend H1, Vandepitte C1, Hadzic A1, Teixeira J1. J Pain Res. 2013 Nov 27;6:837-41. doi: 10.2147/JPR.S50561. eCollection 2013. Abstract PURPOSE: The transversus abdominis plane (TAP) block is a technique increasingly used for analgesia after surgery on the anterior abdominal wall. We undertook this study to determine the feasibility and analgesic efficacy of ultrasound-guided TAP blocks in morbidly obese patients. We describe the dermatomal spread of local anesthetic in TAP blocks administered, and test the hypothesis that TAP blocks decrease visual analog scale (VAS) scores. PATIENTS AND METHODS: After ethics committee approval and informed consent, 35 patients with body mass index >35 undergoing single-port sleeve gastrectomy (SPSG) were enrolled. All patients received balanced general anesthesia, followed by intravenous patient-controlled analgesia (IV-PCA; hydromorphone) postoperatively; all reported VAS >3 upon arrival to the recovery room. From the cohort of 35 patients having single-port laparoscopy (SPL), a sealed envelope method was used to randomly select ten patients to the TAP group and 25 patients to the control group. The ten patients in the TAP group received ultrasound-guided TAP blocks with 30 mL of 0.2% Ropivacaine injected bilaterally. The dermatomal distribution of the sensory block (by pinprick test) was recorded. VAS scores for the first 24 hours after surgery and opioid use were compared between the IV-PCA+TAP block and IV-PCA only groups. RESULTS: Sensory block ranged from T5-L1. Mean VAS pain scores decreased from 8 ± 2 to 4 ± 3 (P=0.04) within 30 minutes of TAP block administration. Compared with patients given IV-PCA only, significantly fewer patients who received TAP block had moderate or severe pain (VAS 4-10) after block administration at 6 hours and 12 hours post-surgery. However, cumulative consumption of hydromorphone at 24 hours after SPSG surgery was similar for both groups. CONCLUSION: Ultrasound-guided TAP blocks in morbidly obese patients are feasible and result in satisfactory analgesia following SPSG in the immediate postoperative period. KEYWORDS: analgesia; nerve blocks; postoperative pain; regional anesthesia; ultrasound PDF XIV Congreso Virtual Mexicano de Anestesiología 2017 Octubre 1-Diciembre 31, 2017 Información

Anestesiología y Medicina del Dolor 52 664 6848905 vwhizar@anestesia-dolor.org anestesia-dolor.org