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J Clin Anesth. 2011 Feb;23(1):7-14. doi: 10.1016/j.jclinane.2010.05.008.

A meta-analysis on the clinical effectiveness of transversus abdominis plane block.

Author information

1
Department of Colorectal Surgery, Worthing Hospital, West Sussex BN112DH, UK. md0u812a@mac.com

Abstract

STUDY OBJECTIVE:

To study the efficacy of the transversus abdominal plane (TAP) block.

DESIGN:

Meta-analysis.

SETTING:

District general hospital.

PATIENTS:

86 patients in the TAP block group and 88 in the non-TAP block group.

MEASUREMENTS:

Statistical analyses were performed using Microsoft Excel 2007 for Windows XP. Hedges g statistic was used for the calculation of standardized mean differences (SMD). Binary data (nausea) were summarized as risk ratios (RR).

MAIN RESULTS:

Patients with TAP block required less morphine after 24 hours than those who did not have the block (random effects model: SMD -4.81, 95% CI [-7.45, -2.17], z = -3.57, P < 0.001). There was less time to first request of morphine in the non-TAP block group (random effects model: SMD 4.80, 95% CI [2.16, 7.43], z = 3.57, P < 0.001). Patients in the TAP block group had less pain up to 24 hours postoperatively. No statistical differences were found with respect to nausea.

CONCLUSIONS:

TAP block reduces the need for postoperative opioid use, it increases the time first request for further analgesia, it provides more effective pain relief, and it reduces opioid-associated side effects.

PMID:
21296242
DOI:
10.1016/j.jclinane.2010.05.008
[Indexed for MEDLINE]

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