Intravenous Ondansetron to Attenuate the Hypotensive, Bradycardic Response to Spinal Anesthesia in Healthy Parturients

Summary

The investigators hypothesize that given prophylactically, intravenous ondansetron will attenuate the drop in blood pressure and heart rate frequently seen after spinal anesthesia. Eighty-six American Society of Anesthesiologists (ASA) physical status I or II in preoperative patient assessment, parturients age of 18 to 45 years scheduled to undergo elective caesarean section will be enrolled. Patients will be randomized to 2 groups: the ondansetron group, receiving 8 mg intravenous ondansetron diluted in 10 mL of saline; or the placebo group, who were administered 10 mL of saline given 5 minutes prior to performing the spinal anesthetic. Investigational Pharmacy will randomize and dispense study drug. Baseline measurements of vital signs will be taken. Otherwise standard management will then be used: * Patients must be NPO for 8 hours * Pulse oximetry, EKG monitoring, noninvasive blood pressure at a minimum of every 3 minutes, more frequently if decided by the provider. * Standard lumbar puncture in a sitting position the L3-L4 or L4-L5 * Whitacre pencil-point, 25 gauge * Injectate: 2 mL of 0.75% hyperbaric bupivacaine, 100 mcg preservative free morphine, 20 mcg fentanyl * Immediately after completing the subarachnoid injection, patients will be laid supine with left lateral uterine displacement The sensory level of anesthesia will be assessed in the standard fashion every five minutes using ice. The motor component will tested using the Bromage scale for spinal anesthesia (0, no paralysis; 1, inability to lift the thigh \[only knee/feet\]; 2, inability to flex the knee \[only feet\]; 3, inability to move any joint in the legs).

Timeline

Start

2009-11

Primary completion

2011-06

Completion

2011-06

Publications

• Background Hawkins JL. Anesthesia-related maternal mortality. Clin Obstet Gynecol. 2003 Sep;46(3):679-87. doi: 10.1097/00003081-200309000-00020. No abstract available.
• Background Mhyre JM, Riesner MN, Polley LS, Naughton NN. A series of anesthesia-related maternal deaths in Michigan, 1985-2003. Anesthesiology. 2007 Jun;106(6):1096-104. doi: 10.1097/01.anes.0000267592.34626.6b.
• Background Lee LA, Posner KL, Domino KB, Caplan RA, Cheney FW. Injuries associated with regional anesthesia in the 1980s and 1990s: a closed claims analysis. Anesthesiology. 2004 Jul;101(1):143-52. doi: 10.1097/00000542-200407000-00023.
• Background Liu SS, McDonald SB. Current issues in spinal anesthesia. Anesthesiology. 2001 May;94(5):888-906. doi: 10.1097/00000542-200105000-00030. No abstract available.
• Background Jackson R, Reid JA, Thorburn J. Volume preloading is not essential to prevent spinal-induced hypotension at caesarean section. Br J Anaesth. 1995 Sep;75(3):262-5. doi: 10.1093/bja/75.3.262.
• Background Kinsella SM, Lohmann G. Supine hypotensive syndrome. Obstet Gynecol. 1994 May;83(5 Pt 1):774-88.
• Background Rout CC, Rocke DA. Prevention of hypotension following spinal anesthesia for cesarean section. Int Anesthesiol Clin. 1994 Spring;32(2):117-35. No abstract available.
• Background Mathru M, Rao TL, Kartha RK, Shanmugham M, Jacobs HK. Intravenous albumin administration for prevention of spinal hypotension during cesarean section. Anesth Analg. 1980 Sep;59(9):655-8.
• Background Dahlgren G, Granath F, Pregner K, Rosblad PG, Wessel H, Irestedt L. Colloid vs. crystalloid preloading to prevent maternal hypotension during spinal anesthesia for elective cesarean section. Acta Anaesthesiol Scand. 2005 Sep;49(8):1200-6. doi: 10.1111/j.1399-6576.2005.00730.x.
• Background Ueyama H, He YL, Tanigami H, Mashimo T, Yoshiya I. Effects of crystalloid and colloid preload on blood volume in the parturient undergoing spinal anesthesia for elective Cesarean section. Anesthesiology. 1999 Dec;91(6):1571-6. doi: 10.1097/00000542-199912000-00006.
• Background Riley ET, Cohen SE, Rubenstein AJ, Flanagan B. Prevention of hypotension after spinal anesthesia for cesarean section: six percent hetastarch versus lactated Ringer's solution. Anesth Analg. 1995 Oct;81(4):838-42. doi: 10.1097/00000539-199510000-00031.
• Background Campagna JA, Carter C. Clinical relevance of the Bezold-Jarisch reflex. Anesthesiology. 2003 May;98(5):1250-60. doi: 10.1097/00000542-200305000-00030. No abstract available.
• Background Villalon CM, Centurion D. Cardiovascular responses produced by 5-hydroxytriptamine:a pharmacological update on the receptors/mechanisms involved and therapeutic implications. Naunyn Schmiedebergs Arch Pharmacol. 2007 Oct;376(1-2):45-63. doi: 10.1007/s00210-007-0179-1. Epub 2007 Aug 17.
• Background Veelken R, Sawin LL, DiBona GF. Epicardial serotonin receptors in circulatory control in conscious Sprague-Dawley rats. Am J Physiol. 1990 Feb;258(2 Pt 2):H466-72. doi: 10.1152/ajpheart.1990.258.2.H466.
• Background Owczuk R, Wenski W, Polak-Krzeminska A, Twardowski P, Arszulowicz R, Dylczyk-Sommer A, Wujtewicz MA, Sawicka W, Morzuch E, Smietanski M, Wujtewicz M. Ondansetron given intravenously attenuates arterial blood pressure drop due to spinal anesthesia: a double-blind, placebo-controlled study. Reg Anesth Pain Med. 2008 Jul-Aug;33(4):332-9. doi: 10.1016/j.rapm.2008.01.010.
• Background Martinek RM. Witnessed asystole during spinal anesthesia treated with atropine and ondansetron: a case report. Can J Anaesth. 2004 Mar;51(3):226-30. doi: 10.1007/BF03019100.
• Background FDA Prescribing Information. Web retrieved 7/8/2009 .http://www.fda.org
• Background Tucker ML, Jackson MR, Scales MD, Spurling NW, Tweats DJ, Capel-Edwards K. Ondansetron: pre-clinical safety evaluation. Eur J Cancer Clin Oncol. 1989;25 Suppl 1:S79-93.
• Background Einarson A, Maltepe C, Navioz Y, Kennedy D, Tan MP, Koren G. The safety of ondansetron for nausea and vomiting of pregnancy: a prospective comparative study. BJOG. 2004 Sep;111(9):940-3. doi: 10.1111/j.1471-0528.2004.00236.x.
• Background Sullivan CA, Johnson CA, Roach H, Martin RW, Stewart DK, Morrison JC. A pilot study of intravenous ondansetron for hyperemesis gravidarum. Am J Obstet Gynecol. 1996 May;174(5):1565-8. doi: 10.1016/s0002-9378(96)70607-5.
• Background Kuscu NK, Koyuncu F. Hyperemesis gravidarum: current concepts and management. Postgrad Med J. 2002 Feb;78(916):76-9. doi: 10.1136/pmj.78.916.76.
• Background Asker C, Norstedt Wikner B, Kallen B. Use of antiemetic drugs during pregnancy in Sweden. Eur J Clin Pharmacol. 2005 Dec;61(12):899-906. doi: 10.1007/s00228-005-0055-1. Epub 2005 Nov 18.
• Background Phillips TW Jr, Broussard DM, Sumrall WD 3rd, Hart SR. Intraoperative oxygen administration does not reduce the incidence or severity of nausea or vomiting associated with neuraxial anesthesia for cesarean delivery. Anesth Analg. 2007 Oct;105(4):1113-7, table of contents. doi: 10.1213/01.ane.0000278626.54116.0e.
• Background Siddik-Sayyid SM, Aouad MT, Taha SK, Azar MS, Hakki MA, Kaddoum RN, Nasr VG, Yazbek VG, Baraka AS. Does ondansetron or granisetron prevent subarachnoid morphine-induced pruritus after cesarean delivery? Anesth Analg. 2007 Feb;104(2):421-4. doi: 10.1213/01.ane.0000253668.10453.de.
• Background Yeh HM, Chen LK, Lin CJ, Chan WH, Chen YP, Lin CS, Sun WZ, Wang MJ, Tsai SK. Prophylactic intravenous ondansetron reduces the incidence of intrathecal morphine-induced pruritus in patients undergoing cesarean delivery. Anesth Analg. 2000 Jul;91(1):172-5. doi: 10.1097/00000539-200007000-00032.
• Background Yazigi A, Chalhoub V, Madi-Jebara S, Haddad F, Hayek G. Prophylactic ondansetron is effective in the treatment of nausea and vomiting but not on pruritus after cesarean delivery with intrathecal sufentanil-morphine. J Clin Anesth. 2002 May;14(3):183-6. doi: 10.1016/s0952-8180(01)00381-6.
• Background Sarvela PJ, Halonen PM, Soikkeli AI, Kainu JP, Korttila KT. Ondansetron and tropisetron do not prevent intraspinal morphine- and fentanyl-induced pruritus in elective cesarean delivery. Acta Anaesthesiol Scand. 2006 Feb;50(2):239-44. doi: 10.1111/j.1399-6576.2006.00934.x.
• Background Abouleish EI, Rashid S, Haque S, Giezentanner A, Joynton P, Chuang AZ. Ondansetron versus placebo for the control of nausea and vomiting during Caesarean section under spinal anaesthesia. Anaesthesia. 1999 May;54(5):479-82. doi: 10.1046/j.1365-2044.1999.00798.x.
• Background George RB, Allen TK, Habib AS. Serotonin receptor antagonists for the prevention and treatment of pruritus, nausea, and vomiting in women undergoing cesarean delivery with intrathecal morphine: a systematic review and meta-analysis. Anesth Analg. 2009 Jul;109(1):174-82. doi: 10.1213/ane.0b013e3181a45a6b.
• Background Tang J, Wang B, White PF, Watcha MF, Qi J, Wender RH. The effect of timing of ondansetron administration on its efficacy, cost-effectiveness, and cost-benefit as a prophylactic antiemetic in the ambulatory setting. Anesth Analg. 1998 Feb;86(2):274-82. doi: 10.1097/00000539-199802000-00010.
• Terkawi AS, Tiouririne M, Mehta SH, Hackworth JM, Tsang S, Durieux ME. Ondansetron Does Not Attenuate Hemodynamic Changes in Patients Undergoing Elective Cesarean Delivery Using Subarachnoid Anesthesia: A Double-Blind, Placebo-Controlled, Randomized Trial. Reg Anesth Pain Med. 2015 Jul-Aug;40(4):344-8. doi: 10.1097/AAP.0000000000000274.

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