Obesity Surgery

, Volume 28, Issue 11, pp 3374–3379 | Cite as

Laparoscopic-Guided Transversus Abdominis Plane (TAP) Block as Part of Multimodal Analgesia in Laparoscopic Roux-en-Y Gastric Bypass Within an Enhanced Recovery After Surgery (ERAS) Program: a Prospective Randomized Clinical Trial

  • Jaime Ruiz-TovarEmail author
  • Alejandro Garcia
  • Carlos Ferrigni
  • Juan Gonzalez
  • Cesar Levano-Linares
  • Montiel Jimenez-Fuertes
  • Carolina Llavero
  • Manuel Duran
Original Contributions



Despite the ultrasound guidance of transversus abdominis plane (TAP) blocks has allowed greater precision of needle placement in the desired tissue plane, visualization of the abdominal wall muscles can be hindered by morbid obesity and could lead to failed regional anesthesia. The aim of this study was to assess the feasibility and effect of laparoscopic-guided TAP block in patients undergoing Roux-en-Y gastric bypass and to compare it with port-site infiltration.

Patients and Methods

A prospective randomized clinical trial was performed. Patients were randomized into two groups: patients undergoing laparoscopic-guided TAP (TAP-lap) and patients undergoing port-site infiltration (PSI). Pain quantification as measured by visual analogic scale (VAS) and morphine needs during the first 24 h were evaluated.


One hundred and forty patients were included, 70 in each group. The mean operation time was 83.3 + 15.6 min in TAP-lap and 80.5 + 14.4 min in PSI (NS). The mean postoperative pain, as measured by VAS, 24 h after surgery was 16.8 + 11.2 mm in PSI and 10 + 8.1 mm in TAP-lap (p = 0.001). Morphine rescues were necessary in 13.2% in PSI and 2.9% in TAP-lap (p = 0.026). The mean hospital stay was 2.1 + 1.2 days in TAP-lap and 2.9 + 1.3 days in PSI (p = 0.019). Hospital discharge during the first 48 h after surgery was possible in 52.9% of the patients in PSI and 71% in TAP-lap (OR 4.75; 95% CI 2.1–10.8; p = 0.029).


Laparoscopic-guided TAP block can reduce postoperative pain, opioid needs, and hospital stay, when compared with port-site infiltration with the same anesthetic drug, without increasing operation time.

Trial Registration Identifier: NCT03203070


Transversus abdominis plane block Laparoscopy Roux-en-Y gastric bypass Postoperative pain 


Compliance with Ethical Standards

Conflict of Interest

The authors declare that they have no conflict of interest.

Statement of Informed Consent

Informed consent was obtained from all individual participants included in the study.

Statement of Human Rights

All procedures performed in this study were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Centro de Excelencia para el Estudio y Tratamiento de la ObesidadValladolidSpain
  2. 2.Department of Surgery, Bariatric Surgery UnitUniversity Hospital Rey Juan CarlosMadridSpain
  3. 3.Obesity UnitGarcilaso ClinicMadridSpain

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