Cardiac; Dysrhythmia, PostoperativePhase 4POCANCT04234906
Prevention of Post-Operative Cardiac Arrhythmias
A Phase 4 study testing Dexmedetomidine, Magnesium Sulfate and Amiodarone in people with Cardiac; Dysrhythmia, Postoperative and Congenital Heart Surgery, run by Jeffrey Moak.
Trial summary
Aim 1: Primary Prevention of Post-operative Cardiac Arrhythmias 1. 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… Read more about this study
- Who is it for?
- Ages Up to 35 yearsHealthy volunteers can take part
- Conditions the study is for
- Cardiac; Dysrhythmia, Postoperative, Congenital Heart Surgery
- What is being tested?
- Dexmedetomidine, Magnesium Sulfate and Amiodarone
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 870 participants
- Where
- No sites listed yet
- Study dates
- Jan 2023to Aug 2023
- Phase
- Phase 4
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages Up to 35 years
- All sexes
- Healthy volunteers accepted
- Child, Adult
Who may be able to join
- 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.
Who cannot join
- 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
Trial locations and contacts
No sites are listed yet.
About this study
Official title: 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)
Read more
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
Read the 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.
- Being tested
- Dexmedetomidine, Magnesium Sulfate, Amiodarone, Procainamide
- Keywords
- Magnesium Sulfate, Dexedetomidine, anti-arrhythmic medications
- Medical subject headings
- Arrhythmias, Cardiac
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
DexmedetomidineDrug
Also called Precedex
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
Magnesium SulfateDrug
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
AmiodaroneDrug
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
ProcainamideDrug
Also called Pronestyl
IV Procainamide 10-15 mg/kg administered over 45 minutes Continuous Intravenous Infusion 20-50 mcg/kg/min
| Study group | Role | What they receive |
|---|---|---|
| Stage 1, Group 1 - Dexmedetomidine | Active comparator | 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 Receives: Drug: Dexmedetomidine |
| Stage 1, Group 2- Magnesium | Active comparator | 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. Receives: Drug: Magnesium Sulfate |
| Stage 2, AMIODARONE | Active comparator | 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 Receives: Drug: Amiodarone |
| Stage 2, PROCAINAMIDE | Active comparator | PROCAINAMIDE IV Procainamide 10-15 mg/kg administered over 45 minutes Continuous Intravenous Infusion 20-50 mcg/kg/min Receives: Drug: Procainamide |
What is being measured
The primary outcome is the main question the study is designed to answer.
Incidence of Post-Operative Cardiac Arrhythmias
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.
Measured: 3 years
Secondary outcomes (2)
Percent of Treatment Success Following IV Amiodarone or Procainamide Administration for Post-Operative Cardiac Arrhythmias.
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.
Measured: 3 years
Incidence of Adverse Effects following IV Amiodarone or Procainamide Administration
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.
Measured: 3 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted21 Jan 2020
- Study startJan 2023 (estimated)
- Primary completionApr 2023 (estimated)
- Study completionAug 2023 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (26)Papers the sponsor has linked to this study.
- Other trials for Cardiac; Dysrhythmia, PostoperativeStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 4
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Sequential
- Model description
- Two staged, prospective randomized clinical trial: Stage 1 targets prevention of post-operative arrhythmias. Stage 2 allows for re-randomization to secondary treatment for those subjects failing Stage 1, i.e. those patients that develop and require treatment of clinically significant post-operative cardiac arrhythmias with antiarrhythmic medication.
- Masking
- None (open label)
- Enrolment
- 870 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Jeffrey Moak
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor-investigator, Jeffrey Moak, Children's National Research Institute
- Investigators
- Jeffrey Moak, Principal investigator, Children's National Research Institute
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04234906
- Sponsor's protocol ID
- Pro00013067
- Acronym
- POCA
- Status last verified
- Dec 2021
- First submitted
- 6 Jan 2020
- Last updated
- 15 Mar 2022
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- No
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.
PubMed 17382623Hoffman 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.
PubMed 12440616Dodge-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.
PubMed 11986588Cecchin 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.
PubMed 7639165Pfammatter 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.
PubMed 11828284Moak 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.
PubMed 23662635He 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.
PubMed 29778339He 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.
PubMed 25762470Lapsa 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.
PubMed 28249845Chrysostomou 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.
PubMed 21871284Chang 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.
PubMed 20194798Jian 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.
PubMed 12760983Manrique 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.
PubMed 19819469Dittrich 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.
PubMed 12774159
Study at a glance
From the registry record, last updated by the sponsor on 15 Mar 2022. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Multicenter Study for the Prevention of Post-Operative Cardiac Arrhythmias
- ClinicalTrials.gov ID
- NCT04234906
- Acronym / sponsor ID
- POCA / Pro00013067
- Keywords
- Magnesium Sulfate, Dexedetomidine, anti-arrhythmic medications
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 870 participants (estimated)
- Lead sponsor
- Jeffrey MoakUniversity, hospital or other
- Study start
- Jan 2023 (estimated)
- Primary completion
- Apr 2023 (estimated)
- Study completion
- Aug 2023 (estimated)
- First posted
- 21 Jan 2020 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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
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 design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Sequential
- Masking
- None (open label)
- Number of arms
- 4
- Model description
- Two staged, prospective randomized clinical trial: Stage 1 targets prevention of post-operative arrhythmias. Stage 2 allows for re-randomization to secondary treatment for those subjects failing Stage 1, i.e. those patients that develop and require treatment of clinically significant post-operative cardiac arrhythmias with antiarrhythmic medication.
| Arm | Type | Receives |
|---|---|---|
| Stage 1, Group 1 - Dexmedetomidine | Active comparator | Drug: DexmedetomidineDexmedetomidine: 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 |
| Stage 1, Group 2- Magnesium | Active comparator | Drug: Magnesium SulfateMagnesium 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. |
| Stage 2, AMIODARONE | Active comparator | Drug: AmiodaroneAMIODARONE 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 |
| Stage 2, PROCAINAMIDE | Active comparator | Drug: ProcainamidePROCAINAMIDE IV Procainamide 10-15 mg/kg administered over 45 minutes Continuous Intravenous Infusion 20-50 mcg/kg/min |
Who may qualify
- Ages
- Up to 35 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult
Key inclusion criteria (2 listed)
- 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.
Key exclusion criteria (3 listed)
- 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
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| DexmedetomidineAlso: PrecedexDexmedetomidine: 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 | Drug | Stage 1, Group 1 - Dexmedetomidine |
| Magnesium SulfateMagnesium 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 | Drug | Stage 1, Group 2- Magnesium |
| AmiodaroneI 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 | Drug | Stage 2, AMIODARONE |
| ProcainamideAlso: PronestylIV Procainamide 10-15 mg/kg administered over 45 minutes Continuous Intravenous Infusion 20-50 mcg/kg/min | Drug | Stage 2, PROCAINAMIDE |
Primary outcome
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.
2 secondary outcomes
Percent of Treatment Success Following IV Amiodarone or Procainamide Administration for Post-Operative Cardiac Arrhythmias.
Time frame: 3 years
Incidence of Adverse Effects following IV Amiodarone or Procainamide Administration
Time frame: 3 years
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 15 Mar 2022.
- Background: PubMed 17382623Rekawek 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.
- Background: PubMed 12440616Hoffman 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.
- Background: PubMed 11986588Dodge-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.
- Background: PubMed 7639165Cecchin 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.
- Background: PubMed 11828284Pfammatter 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.
- Background: PubMed 23662635Moak 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.
- Background: PubMed 29778339He 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.
- Background: PubMed 25762470He 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.
- BackgroundLapsa 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.
- Background: PubMed 28249845El 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.
- Background: PubMed 21871284Chrysostomou 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.
- Background: PubMed 20194798Chang 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.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Jeffrey Moak principal investigator
Children's National Research Institute
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Dexmedetomidine, Magnesium Sulfate and Amiodarone in people with Cardiac; Dysrhythmia, Postoperative and Congenital Heart Surgery, run by Jeffrey Moak.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 15 Mar 2022. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Jeffrey Moak (2024765707, JMOAK@childrensnational.org), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Incidence of Post-Operative Cardiac Arrhythmias (time frame: 3 years). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04234906, which also lists 26 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Mar 2022.