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Jackson, Mississippi 39216


This study attempts to learn about the effectiveness of a modification to the Transversus Abdominis Plane (TAP) block that works by anaesthetizing the sensory afferents of the abdominal wall postoperatively using ultrasound guidance. The investigators want to see if regional blocks placed by the surgeon intraoperatively to assure regional anesthetic spread in the appropriate plane could reduce error and improve postoperative recovery.

Study summary:

This study is a prospective, randomized blinded study that investigates the efficacy of a transversus abdominis plane block under direct view. In this pilot study involving gynecologic patients undergoing open (abdominal wall incision either vertically or horizontally) hysterectomy or other related gynecologic surgery, the investigators will use ropivacaine versus saline for the placebo control group, which in both groups involves injection of agent directly into the appropriate fascial layers prior to abdominal wall closure. Efficacy is to be assessed via measurement of pain scores, nausea and vomiting, and opioid consumption in both participant groups. The number of dermatomes which are blocked in both participant groups during the first 24 hours following surgery will be recorded.


Inclusion Criteria: - Age≥18 years old and not pregnant - Must be able to provide informed consent - functional understanding of English - Undergoes exploratory laparotomy with midline abdominal incision Exclusion Criteria: - History of substance abuse - History of chronic pain syndrome - Daily opioid use for more than 1 month - Patients considered to have chorioamnionitis at the time of cesarean surgery as determined by the attending physician - Prior abdominal surgery involving mesh or placement of an ostomy site as this may disrupt the plane in which the anesthetic may spread - Allergy to local anesthetics - History of cardiac arrhythmias or cardiac abnormalities - History of seizure disorder - Liver disease



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Location Contact:

Jackson, Mississippi 39216
United States

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Site Status: N/A

Data Source: ClinicalTrials.gov

Date Processed: March 16, 2018

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