Year : 2014  |  Volume : 8  |  Issue : 2  |  Page : 229-232

Ultrasound guided rectus sheath blockade compared to peri-operative local anesthetic infiltration in infants undergoing supraumbilical pyloromyotomy

1 Department of Anesthesia, Aberdeen Royal Infirmary, Scotland, United Kingdom
2 Royal Aberdeen Children's Hospital, Aberdeeen, AB25 2ZN, Scotland, United Kingdom

Correspondence Address:
Graham A. M. Wilson
Department of Anesthesia, Royal Aberdeen Children's Hospital, Westburn Road, Aberdeeen, AB25 2ZG, Scotland
United Kingdom
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1658-354X.130725

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Background: Provision of appropriate analgesia for supraumbilical pyloromyotomy in infants is limited by concerns about sensitivity to opioids and other medication groups, due to immature metabolism. Local anesthetic infiltration and ultrasound guided rectus sheath blockade are two techniques commonly employed to provide perioperative analgesia. The aim of this review was to compare the quality of post-operative analgesia afforded by these two techniques. Materials and Methods: A retrospective chart analysis of hospital records of all patients who underwent supraumbilical pyloromyotomy at a tertiary pediatric hospital between March 2009 and February 2011. Analysis of the anesthetic technique employed and post-operative acetaminophen requirements were performed. Additional information as to time to first post-operative feed, any complications and time of discharge from the hospital were collected by reviewing the post-operative nursing notes. Results: A total of 30 patients underwent supraumbilical pyloromyotomy during this period. A total of 18 received local anesthetic infiltration at the end of the procedure and 12 patients underwent ultrasound guided pre-incisional rectus sheath block for post-operative analgesia. Patients who had post-operative local anesthetic infiltration had a median (range) of 2 (1-3) doses of acetaminophen in the first 24 h. In the group of patients who received a rectus sheath block, the median (range) number of doses of acetaminophen in the first 24 h was also 2 (1-3). There were no differences in time to first feed and time to hospital discharge between the groups. The volume of local anesthetic administered was significantly smaller in the group receiving analgesia via rectus sheath block. Conclusion: Local anesthetic infiltration and pre-incisional ultrasound guided rectus sheath block provide similar degrees of post-operative analgesia. There were no differences between the two groups in time for first post-operative feed and time to hospital discharge.

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