IV Ketorolac on Platelet Function Post-Cesarean Delivery

Summary

Cesarean delivery has become the most common surgical procedure in the US. Non-steroidal anti-inflammatory drugs (NSAIDs) have been shown to improve the quality of post-cesarean analgesia and markedly reduce opioid consumption. The effect of NSAIDs on healthy volunteers results in inhibition of platelet aggregation and prolonged bleeding time. However, in the obstetric population, the presence and degree of platelet inhibition after NSAID exposure is less clear. The investigators plan to use Platelet Aggregometry and Thromboelastography (TEG) to evaluate the effect of ketorolac on platelets.

Timeline

Start

2021-01-18

Primary completion

2022-02-03

Completion

2024-03-30

Publications

• Background Blackburn A, Stevens JD, Wheatley RG, Madej TH, Hunter D. Balanced analgesia with intravenous ketorolac and patient-controlled morphine following lower abdominal surgery. J Clin Anesth. 1995 Mar;7(2):103-8. doi: 10.1016/0952-8180(94)00040-b.
• Background Diemunsch P, Alt M, Diemunsch AM, Treisser A. Post cesarean analgesia with ketorolac tromethamine and uterine atonia. Eur J Obstet Gynecol Reprod Biol. 1997 Apr;72(2):205-6. doi: 10.1016/s0301-2115(96)02682-6. No abstract available.
• Background Pavy TJ, Paech MJ, Evans SF. The effect of intravenous ketorolac on opioid requirement and pain after cesarean delivery. Anesth Analg. 2001 Apr;92(4):1010-4. doi: 10.1097/00000539-200104000-00038.
• Background Lowder JL, Shackelford DP, Holbert D, Beste TM. A randomized, controlled trial to compare ketorolac tromethamine versus placebo after cesarean section to reduce pain and narcotic usage. Am J Obstet Gynecol. 2003 Dec;189(6):1559-62; discussion 1562. doi: 10.1016/j.ajog.2003.08.014.
• Background El-Tahan MR, Warda OM, Yasseen AM, Attallah MM, Matter MK. A randomized study of the effects of preoperative ketorolac on general anaesthesia for caesarean section. Int J Obstet Anesth. 2007 Jul;16(3):214-20. doi: 10.1016/j.ijoa.2007.01.012. Epub 2007 Apr 24.
• Background Elhakim M, Fathy A, Amine H, Saeed A, Mekawy M. Effect of i.v. tenoxicam during caesarean delivery on platelet activity. Acta Anaesthesiol Scand. 2000 May;44(5):555-9. doi: 10.1034/j.1399-6576.2000.00512.x.
• Background Gobble RM, Hoang HLT, Kachniarz B, Orgill DP. Ketorolac does not increase perioperative bleeding: a meta-analysis of randomized controlled trials. Plast Reconstr Surg. 2014 Mar;133(3):741-755. doi: 10.1097/01.prs.0000438459.60474.b5.

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