Comparison of Surgical Rectus Sheath Block and Intrathecal Morphine
Summary
Pain is the main obstacle in delaying postoperative recovery and leads to prolonged hospital stay. Administration of intrathecal morphine during spinal anaesthesia can provide effective pain control. However, it is associated with significant side effects including nausea, vomiting and itchiness. Also, it is not suitable in all patients, for example, those with morphine allergy, or severe respiratory disease. Surgical rectus sheath block involves injection of local anaesthetic agents into the rectus sheath space before closure of the wound. It has been shown to provide adequate pain control with less systemic side effects. The aim of the study is to evaluate the effectiveness of surgical rectus sheath block and intrathecal morphine in post-Caesarean section pain control.
Timeline
- Start
- 2014-09
- Primary completion
- 2016-01
- Completion
- 2016-06
Outcome
Mixed primary results
paper MAIN OUTCOME MEASURES: Morphine consumption and mean resting pain intensity numerical rating scale at 12 and 24 hours were the primary outcome variables. PMID 22686512 ↗
paper Morphine requirements were significantly less in the bupivacaine group, 19.0 mg/woman, compared with 24.0 mg/woman in the placebo group PMID 22686512 ↗
paper Over the whole first postoperative 24 hours, there were no differences in either morphine requirement or pain intensity between groups. PMID 22686512 ↗
Publications
- Background Uchiyama A, Nakano S, Ueyama H, Nishimura M, Tashiro C. Low dose intrathecal morphine and pain relief following caesarean section. Int J Obstet Anesth. 1994 Apr;3(2):87-91. doi: 10.1016/0959-289x(94)90175-9.
- Background Dahl JB, Jeppesen IS, Jorgensen H, Wetterslev J, Moiniche S. Intraoperative and postoperative analgesic efficacy and adverse effects of intrathecal opioids in patients undergoing cesarean section with spinal anesthesia: a qualitative and quantitative systematic review of randomized controlled trials. Anesthesiology. 1999 Dec;91(6):1919-27. doi: 10.1097/00000542-199912000-00045. No abstract available.
- Background Sawi W, Choy YC. A comparative study of post operative analgesia, side effects profile and patient satisfaction using intrathecal fentanyl with and without morphine 0.1 mg in caesarean section. Middle East J Anaesthesiol. 2013 Feb;22(1):21-6.
- Background Rozen WM, Tran TM, Ashton MW, Barrington MJ, Ivanusic JJ, Taylor GI. Refining the course of the thoracolumbar nerves: a new understanding of the innervation of the anterior abdominal wall. Clin Anat. 2008 May;21(4):325-33. doi: 10.1002/ca.20621.
- Results Willschke H, Bosenberg A, Marhofer P, Johnston S, Kettner SC, Wanzel O, Kapral S. Ultrasonography-guided rectus sheath block in paediatric anaesthesia--a new approach to an old technique. Br J Anaesth. 2006 Aug;97(2):244-9. doi: 10.1093/bja/ael143. Epub 2006 Jun 23.
- Results Niklasson B, Borjesson A, Carmnes UB, Segerdahl M, Ohman SG, Blanck A. Intraoperative injection of bupivacaine-adrenaline close to the fascia reduces morphine requirements after cesarean section: a randomized controlled trial. Acta Obstet Gynecol Scand. 2012 Dec;91(12):1433-9. doi: 10.1111/j.1600-0412.2012.01480.x. Epub 2012 Nov 1.
- Results Crosbie EJ, Massiah NS, Achiampong JY, Dolling S, Slade RJ. The surgical rectus sheath block for post-operative analgesia: a modern approach to an established technique. Eur J Obstet Gynecol Reprod Biol. 2012 Feb;160(2):196-200. doi: 10.1016/j.ejogrb.2011.10.015. Epub 2011 Nov 21.
Drugs
| Evaluation | Drug | Modality | Dose | Route |
|---|---|---|---|---|
| Subject | Bupivacaine | Other / unclassified | 2.5 mg/ml | Other |
| Subject | Bupivacaine | Other / unclassified | 40 ml | Other |
| Comparator | Morphine | Other / unclassified | 0.1 mg | Intrathecal |
Indications
No indication recorded.