- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04234906
Prevention of Post-Operative Cardiac Arrhythmias (POCA)
Multicenter Study for the Prevention of Post-Operative Cardiac Arrhythmias
Aim 1: Primary Prevention of Post-operative Cardiac Arrhythmias
- To evaluate the efficacy of dexmedetomidine vs. the combination of Magnesium Sulfate and dexmedetomidine for the prevention of post-operative cardiac arrhythmias in children and young adults undergoing open heart surgical repair for congenital or acquired heart disease using cardiopulmonary bypass. Dexmedetomidine is currently being administered to almost all patients after coming off cardiopulmonary bypass and in the CICU. For this aim, the investigator will be comparing dexmedetomidine administered alone or in combination with Magnesium Sulfate.
- To evaluate medication safety based on the frequency of Serious Adverse Events (SAEs) and Adverse Events (AEs)
Aim 2: Secondary treatment of those Patients that develop a clinically significant arrhythmia despite having received either Dexmedetomidine alone or Magnesium Sulfate with Dexmedetomidine at the time of cardiac surgery
- To evaluate the efficacy of intravenous (IV) Amiodarone vs. IV Procainamide for the control of postoperative cardiac arrhythmias developing after the failure of Stage 1, Preventative Trial. IV amiodarone and IV procainamide are standardly used treatment agents for the treatment of postoperative cardiac arrhythmias in this setting. The investigator will be assessing the comparative effectiveness of these agents in controlling post-operative cardiac arrhythmias.
- To evaluate antiarrhythmic medication safety based on the frequency of SAEs and AEs
Study Overview
Status
Intervention / Treatment
Detailed Description
Objective: Postoperative cardiac arrhythmias (POCA) are common in children undergoing congenital heart surgery using the heart-lung machine (cardiopulmonary bypass) and have been reported in 5-38% of patients. The occurrence of arrhythmias frequently delays the patient's postoperative recovery, prolongs Cardiac Intensive Care Unit (CICU) and hospital stay, increases costs for hospital care and increases postoperative morbidity and mortality.
Magnesium Sulfate has been one agent used to reduce the occurrence of postoperative arrhythmias. The investigators recently published a propensity-score matched study of the intra-operative administration of Magnesium Sulfate revealing that as many as one-third of pediatric patients at Children's National Hospital undergoing open-heart surgery using cardiopulmonary bypass have postoperative arrhythmias. The use of intraoperative Magnesium Sulfate was associated with a reduction in the occurrence of postoperative arrhythmias. However, despite the intraoperative use of Magnesium Sulfate there continued to be a fairly high residual occurrence rate of post-operative arrhythmias (total arrhythmia frequency -18%).
Dexmedetomidine has also been showed to reduce the occurrence of POCA and has become the preferred agent used for post-operative sedation and pain control. In several studies reported in the medical literature, dexmedetomidine has been found to decrease the occurrence of POCA, like Magnesium Sulfate.
In this IRB study, the investigator is proposing a clinical study to test if the investigator can further decrease the occurrence of postoperative arrhythmias. The investigator will be studying if Magnesium Sulfate administrated in conjunction with an intravenous anesthetic medication, known as dexmedetomidine, can further decrease the primary occurrence of post-operative arrhythmias. The investigator hypothesizes that the effect achieved with the simultaneous administration of Magnesium Sulfate and dexmedetomidine will be much greater than either medication used alone.
For those patients who fail preventative medical strategies and develop clinical significant post-operative arrhythmias in need of treatment, rescue arrhythmia treatment options include the use of potent anti-arrhythmic medications that can have very dramatic effects on the patient's heart rate and blood pressure (amiodarone or procainamide). Scant published data exists providing us with guidance on the comparative efficacy and safety of these agents in the postoperative cardiac surgical patient. The investigator will compare the efficacy and adverse effects of the two agents in treating clinically significant arrhythmias that occur despite trying to prevent their onset.
Study Type
Enrollment (Anticipated)
Phase
- Phase 4
Contacts and Locations
Study Contact
- Name: Jeffrey Moak
- Phone Number: 2024765707
- Email: JMOAK@childrensnational.org
Study Contact Backup
- Name: Robert Lowndes
- Phone Number: 202-476-4970
- Email: rlowndes@childrensnational.org
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- 1) Any infant, child, adolescent, or young adult with congenital or acquired heart disease undergoing open heart surgical repair using cardiopulmonary bypass is eligible to be enrolled in this trial.
- 2) No age, gender or ethnic group restrictions.
Exclusion Criteria:
- 1) Non-cardiopulmonary bypass repair of a congenital or acquired cardiac defect.
- 2) Significant pre-operative arrhythmia history
- 3) Past history of adverse effect to any of the study medication agents
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Sequential Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Stage 1, Group 1 - Dexmedetomidine
Dexmedetomidine: 1 mcg/kg administered at end of cardiopulmonary bypass, followed by a 0.5 mcg/kg/h infusion for 72 h postoperatively or ready for extubation prior to 72 hour time period
|
Dexmedetomidine: 1 mcg/kg administered over 20 min peri-intubation period, followed by a 0.5 mcg/kg/h infusion for 72 h postoperatively or ready for extubation prior to 72 hour time period
Other Names:
|
Active Comparator: Stage 1, Group 2- Magnesium
Magnesium Sulfate (50 mg/kg) bolus administered at the time of Aortic Cross Clamp Release, with continued administration for 72 hours postoperatively at a dose of 30 mg/kg/day.
|
Magnesium Sulfate (50 mg/kg) bolus administered at the time of Aortic Cross Clamp Release, with continued administration for 72 hours postoperatively at a dose of 30 mg/kg/day
|
Active Comparator: Stage 2, AMIODARONE
AMIODARONE I V Amiodarone 2.5 mg/kg administered over 30 minutes Second 2.5 mg/kg dose if needed over 30 minutes Continuous Intravenous Infusion 10-15 mg/kg/24 hours
|
I V Amiodarone 2.5 mg/kg administered over 30 minutes Second 2.5 mg/kg dose if needed over 30 minutes Continuous Intravenous Infusion 10-15 mg/kg/24 hours
|
Active Comparator: Stage 2, PROCAINAMIDE
PROCAINAMIDE IV Procainamide 10-15 mg/kg administered over 45 minutes Continuous Intravenous Infusion 20-50 mcg/kg/min
|
IV Procainamide 10-15 mg/kg administered over 45 minutes Continuous Intravenous Infusion 20-50 mcg/kg/min
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Incidence of Post-Operative Cardiac Arrhythmias
Time Frame: 3 years
|
The investigator will determine the incidence of cardiac arrhythmia in the two study groups (dexmedetomidine and magnesium sulfate).
Statistical analysis will be performed to determine whether a statistical difference is detected between the two study groups.
The occurrence of cardiac arrhythmias will be determined from continuous cardiac telemetry.
|
3 years
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Percent of Treatment Success Following IV Amiodarone or Procainamide Administration for Post-Operative Cardiac Arrhythmias.
Time Frame: 3 years
|
The investigator will determine treatment success (as measured by the composite of complete or partial arrhythmia control) following the administration of either IV amiodarone or procainamide administration.
Percent of treatment success will be determined by the composite success group divided by all given administered each anti-arrhythmic agent.
Statistical analysis will be performed to determine whether a statistical difference is detected between the two study groups.
Arrhythmia control will be determined from continuous cardiac telemetry.
|
3 years
|
Incidence of Adverse Effects following IV Amiodarone or Procainamide Administration
Time Frame: 3 years
|
The investigator will determine the incidence of adverse effects (hypotension, bradycardia, or low cardiac output) following the administration of either IV amiodarone or procainamide.
Statistical analysis will be performed to determine whether a statistical difference is detected between the two study groups.
|
3 years
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Jeffrey Moak, Children's National Research Institute
Publications and helpful links
General Publications
- Rekawek J, Kansy A, Miszczak-Knecht M, Manowska M, Bieganowska K, Brzezinska-Paszke M, Szymaniak E, Turska-Kmiec A, Maruszewski P, Burczynski P, Kawalec W. Risk factors for cardiac arrhythmias in children with congenital heart disease after surgical intervention in the early postoperative period. J Thorac Cardiovasc Surg. 2007 Apr;133(4):900-4. doi: 10.1016/j.jtcvs.2006.12.011.
- Hoffman TM, Bush DM, Wernovsky G, Cohen MI, Wieand TS, Gaynor JW, Spray TL, Rhodes LA. Postoperative junctional ectopic tachycardia in children: incidence, risk factors, and treatment. Ann Thorac Surg. 2002 Nov;74(5):1607-11. doi: 10.1016/s0003-4975(02)04014-6.
- Dodge-Khatami A, Miller OI, Anderson RH, Goldman AP, Gil-Jaurena JM, Elliott MJ, Tsang VT, De Leval MR. Surgical substrates of postoperative junctional ectopic tachycardia in congenital heart defects. J Thorac Cardiovasc Surg. 2002 Apr;123(4):624-30. doi: 10.1067/mtc.2002.121046.
- Cecchin F, Johnsrude CL, Perry JC, Friedman RA. Effect of age and surgical technique on symptomatic arrhythmias after the Fontan procedure. Am J Cardiol. 1995 Aug 15;76(5):386-91. doi: 10.1016/s0002-9149(99)80106-4.
- Pfammatter JP, Wagner B, Berdat P, Bachmann DC, Pavlovic M, Pfenninger J, Carrel T. Procedural factors associated with early postoperative arrhythmias after repair of congenital heart defects. J Thorac Cardiovasc Surg. 2002 Feb;123(2):258-62. doi: 10.1067/mtc.2002.119701.
- Moak JP, Arias P, Kaltman JR, Cheng Y, McCarter R, Hanumanthaiah S, Martin GR, Jonas RA. Postoperative junctional ectopic tachycardia: risk factors for occurrence in the modern surgical era. Pacing Clin Electrophysiol. 2013 Sep;36(9):1156-68. doi: 10.1111/pace.12163. Epub 2013 May 10.
- He D, Aggarwal N, Zurakowski D, Jonas RA, Berul CI, Hanumanthaiah S, Moak JP. Lower risk of postoperative arrhythmias in congenital heart surgery following intraoperative administration of magnesium. J Thorac Cardiovasc Surg. 2018 Aug;156(2):763-770.e1. doi: 10.1016/j.jtcvs.2018.04.044. Epub 2018 Apr 18.
- He D, Sznycer-Taub N, Cheng Y, McCarter R, Jonas RA, Hanumanthaiah S, Moak JP. Magnesium Lowers the Incidence of Postoperative Junctional Ectopic Tachycardia in Congenital Heart Surgical Patients: Is There a Relationship to Surgical Procedure Complexity? Pediatr Cardiol. 2015 Aug;36(6):1179-85. doi: 10.1007/s00246-015-1141-5. Epub 2015 Mar 12.
- Lapsa J, Clark B, Chen YI, Moak JP. Incidence and risk factors for development of post-operative bradyarrhythmias following congenital and acquired cardiac disease repair in pediatric patients. Poster at APS, Baltimore, MD, 2019.
- El Amrousy DM, Elshmaa NS, El-Kashlan M, Hassan S, Elsanosy M, Hablas N, Elrifaey S, El-Feky W. Efficacy of Prophylactic Dexmedetomidine in Preventing Postoperative Junctional Ectopic Tachycardia After Pediatric Cardiac Surgery. J Am Heart Assoc. 2017 Mar 1;6(3):e004780. doi: 10.1161/JAHA.116.004780.
- Chrysostomou C, Sanchez-de-Toledo J, Wearden P, Jooste EH, Lichtenstein SE, Callahan PM, Suresh T, O'Malley E, Shiderly D, Haney J, Yoshida M, Orr R, Munoz R, Morell VO. Perioperative use of dexmedetomidine is associated with decreased incidence of ventricular and supraventricular tachyarrhythmias after congenital cardiac operations. Ann Thorac Surg. 2011 Sep;92(3):964-72; discussion 972. doi: 10.1016/j.athoracsur.2011.04.099.
- Chang PM, Silka MJ, Moromisato DY, Bar-Cohen Y. Amiodarone versus procainamide for the acute treatment of recurrent supraventricular tachycardia in pediatric patients. Circ Arrhythm Electrophysiol. 2010 Apr;3(2):134-40. doi: 10.1161/CIRCEP.109.901629. Epub 2010 Mar 1.
- Jian W, Su L, Yiwu L. The effects of magnesium prime solution on magnesium levels and potassium loss in open heart surgery. Anesth Analg. 2003 Jun;96(6):1617-1620. doi: 10.1213/01.ANE.0000065444.21593.23.
- Manrique AM, Arroyo M, Lin Y, El Khoudary SR, Colvin E, Lichtenstein S, Chrysostomou C, Orr R, Jooste E, Davis P, Wearden P, Morell V, Munoz R. Magnesium supplementation during cardiopulmonary bypass to prevent junctional ectopic tachycardia after pediatric cardiac surgery: a randomized controlled study. J Thorac Cardiovasc Surg. 2010 Jan;139(1):162-169.e2. doi: 10.1016/j.jtcvs.2009.07.064. Epub 2009 Oct 12.
- Dittrich S, Germanakis J, Dahnert I, Stiller B, Dittrich H, Vogel M, Lange PE. Randomised trial on the influence of continuous magnesium infusion on arrhythmias following cardiopulmonary bypass surgery for congenital heart disease. Intensive Care Med. 2003 Jul;29(7):1141-4. doi: 10.1007/s00134-003-1802-3. Epub 2003 May 28.
- Lee HY, Ghimire S, Kim EY. Magnesium supplementation reduces postoperative arrhythmias after cardiopulmonary bypass in pediatrics: a metaanalysis of randomized controlled trials. Pediatr Cardiol. 2013 Aug;34(6):1396-403. doi: 10.1007/s00246-013-0658-8. Epub 2013 Feb 27.
- Dorman BH, Sade RM, Burnette JS, Wiles HB, Pinosky ML, Reeves ST, Bond BR, Spinale FG. Magnesium supplementation in the prevention of arrhythmias in pediatric patients undergoing surgery for congenital heart defects. Am Heart J. 2000 Mar;139(3):522-8. doi: 10.1016/s0002-8703(00)90097-8.
- Verma YS, Chauhan S, Gharde P, Lakshmy R, Kiran U. Role of magnesium in the prevention of postoperative arrhythmias in neonates and infants undergoing arterial switch operation. Interact Cardiovasc Thorac Surg. 2010 Nov;11(5):573-6. doi: 10.1510/icvts.2010.239830. Epub 2010 Aug 5.
- Fairley JL, Zhang L, Glassford NJ, Bellomo R. Magnesium status and magnesium therapy in cardiac surgery: A systematic review and meta-analysis focusing on arrhythmia prevention. J Crit Care. 2017 Dec;42:69-77. doi: 10.1016/j.jcrc.2017.05.038. Epub 2017 Jun 21.
- Li X, Zhang C, Dai D, Liu H, Ge S. Efficacy of dexmedetomidine in prevention of junctional ectopic tachycardia and acute kidney injury after pediatric cardiac surgery: A meta-analysis. Congenit Heart Dis. 2018 Sep;13(5):799-807. doi: 10.1111/chd.12674. Epub 2018 Sep 27.
- Gautam NK, Turiy Y, Srinivasan C. Preincision Initiation of Dexmedetomidine Maximally Reduces the Risk of Junctional Ectopic Tachycardia in Children Undergoing Ventricular Septal Defect Repairs. J Cardiothorac Vasc Anesth. 2017 Dec;31(6):1960-1965. doi: 10.1053/j.jvca.2017.04.010. Epub 2017 Apr 10.
- Mahmoud AB, Tantawy AE, Kouatli AA, Baslaim GM. Propranolol: a new indication for an old drug in preventing postoperative junctional ectopic tachycardia after surgical repair of tetralogy of Fallot. Interact Cardiovasc Thorac Surg. 2008 Apr;7(2):184-7. doi: 10.1510/icvts.2007.160945. Epub 2007 Dec 18.
- Shuplock JM, Smith AH, Owen J, Van Driest SL, Marshall M, Saville B, Xu M, Radbill AE, Fish FA, Kannankeril PJ. Association between perioperative dexmedetomidine and arrhythmias after surgery for congenital heart disease. Circ Arrhythm Electrophysiol. 2015 Jun;8(3):643-50. doi: 10.1161/CIRCEP.114.002301. Epub 2015 Apr 15.
- Amrousy DE, Elshehaby W, Feky WE, Elshmaa NS. Safety and Efficacy of Prophylactic Amiodarone in Preventing Early Junctional Ectopic Tachycardia (JET) in Children After Cardiac Surgery and Determination of Its Risk Factor. Pediatr Cardiol. 2016 Apr;37(4):734-9. doi: 10.1007/s00246-016-1343-5. Epub 2016 Jan 27.
- Lakatos E. Sample sizes based on the log-rank statistic in complex clinical trials. Biometrics. 1988 Mar;44(1):229-41. Erratum In: Biometrics 1988 Sep;44(3):923.
- Lakatos E. Designing complex group sequential survival trials. Stat Med. 2002 Jul 30;21(14):1969-89. doi: 10.1002/sim.1193.
Study record dates
Study Major Dates
Study Start (Anticipated)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Pathologic Processes
- Heart Diseases
- Cardiovascular Diseases
- Arrhythmias, Cardiac
- Physiological Effects of Drugs
- Adrenergic Agents
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Anti-Arrhythmia Agents
- Vasodilator Agents
- Central Nervous System Depressants
- Peripheral Nervous System Agents
- Enzyme Inhibitors
- Analgesics
- Sensory System Agents
- Anesthetics
- Analgesics, Non-Narcotic
- Adrenergic alpha-2 Receptor Agonists
- Adrenergic alpha-Agonists
- Adrenergic Agonists
- Membrane Transport Modulators
- Hypnotics and Sedatives
- Cytochrome P-450 CYP3A Inhibitors
- Cytochrome P-450 Enzyme Inhibitors
- Anticonvulsants
- Voltage-Gated Sodium Channel Blockers
- Sodium Channel Blockers
- Cytochrome P-450 CYP2D6 Inhibitors
- Calcium-Regulating Hormones and Agents
- Reproductive Control Agents
- Calcium Channel Blockers
- Tocolytic Agents
- Cytochrome P-450 CYP1A2 Inhibitors
- Cytochrome P-450 CYP2C9 Inhibitors
- Potassium Channel Blockers
- Dexmedetomidine
- Magnesium Sulfate
- Amiodarone
- Procainamide
Other Study ID Numbers
- Pro00013067
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
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