NCT02522364

Brief Summary

Postoperative atrial fibrillation and atrial flutter (POAF) is the most common complication after cardiac surgery requiring intervention or prolonged hospital stay. POAF is associated with higher mortality and higher risk of thromboembolic events. However, It is yet unknown whether a now event of postoperative atrial fibrillation is an indication of a chronic arrhythmic disease - a tendency towards developing recurrent atrial fibrillation or merely a response to the stress of surgery with not recurrence. This distinction is critical to determine the appropriate therapy. Since recurred events of atrial fibrillation (Paroxysmal atrial fibrillation) are associated with long term risk for stroke and thromboembolic evens patients with PAF are treated with long term anticoagulation. Missing the long term recurrence of arrhythmia may result in under-treatment and pose a significant risk of stroke. Bio-Monitor is a subcutaneous implanted device that automatically detects arrhythmias and stores electrocardiogram (ECG) recordings. It will enable the detection of atrial fibrillation over a period of years and allow correct diagnosis and appropriate treatment. The purpose of the study is to study the long term behavior of POAF, determine the likelihood of developing paroxysmal atrial fibrillation in patients with POAF and to define the risk factors for this eventuality

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
150

participants targeted

Target at P50-P75 for not_applicable atrial-fibrillation

Timeline
Completed

Started Aug 2015

Typical duration for not_applicable atrial-fibrillation

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 28, 2015

Completed
4 days until next milestone

Study Start

First participant enrolled

August 1, 2015

Completed
12 days until next milestone

First Posted

Study publicly available on registry

August 13, 2015

Completed
2.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2017

Completed
2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2019

Completed
Last Updated

October 19, 2017

Status Verified

October 1, 2017

Enrollment Period

2.3 years

First QC Date

July 28, 2015

Last Update Submit

October 18, 2017

Conditions

Keywords

Postoperative atrial fibrillationDysfunction Following Cardiac Surgery

Outcome Measures

Primary Outcomes (8)

  • Atrial fibrillation event

    Documented Atrial fibrillation of more the 5 minutes duration

    2 years

  • MACCE

    A composite of all -cause mortality, CT/MRI proven stroke, CT proven systemic embolism

    2 years

  • Implantation of permanent pacemaker

    2 years

  • Implantation of ICD

    Implantation of ICD following documented ventricular arrhythmia

    2 years

  • Pocket hematoma

    The development of a hematoma in the BioMonitor insertion site

    30 days

  • Pocket site infection

    The development of a Pocket site infection in the BioMonitor insertion site

    2 years

  • Device extraction

    2 years

  • Major bleeding

    A composite of the following events: i. Bleeding resulting in a decrease in hemoglobin of ≥2 g/dL or over a 24-hour period ii. Bleeding leading to a transfusion of 2 or more units of packed red blood cells iii. Bleeding that occurs in a critical site (intracranial, intraspinal, intraocular, pericardial, intra-articular, intramuscular with compartment syndrome or retroperitoneal) iv. Bleeding that leads to death.

    2 years

Secondary Outcomes (5)

  • All -cause mortality

    2 years

  • CT/MRI proven stroke

    2 years

  • Rapid AF requiring hospitalization

    2 years

  • Initiation of long term anti-coagulation therapy

    2 years

  • Initiation of long term anti-arrhythmic therapy

    2 years

Study Arms (2)

BioMonitor

ACTIVE COMPARATOR

Participants randomized for this arm will be implanted with a BioMonitor device an implantable loop recorder inserted under the skin in the region of the thorax. It continuously records heart rhythm for a period of up to 7 years. The device will be interrogated at 1 month intervals. All arrhythmic events and conductive disturbances will be noted. In addition will be followed as specified in the standard arm

Device: BioMonitor device

Standard

ACTIVE COMPARATOR

Participants randomized for this arm will be followed by biannual office visits initialing clinical evaluation, review of clinical events, review and update of medical therapy. Participants will undergo ECG holter examination at 3 and 6 months after discharge

Other: Standard

Interventions

Implantation of a BioMonitor device and continuously monitoring heart rhythm for study duration

BioMonitor

Clinical and intermittent electrocardiographic follow-up of patients

Standard

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Newly documented POAF of more than 5 minute duration
  • cardiac surgery during index hospitalization, including (CABG, valvular replacement or repair, a combination) without Maze procedure
  • CHA2DS2-VASc≥2
  • Sinus rhythm at the time of BioMonitor implantation or definite intention to cardiovert prior to discharge
  • Signed Informed Consent

You may not qualify if:

  • History of atrial fibrillation/flutter prior to cardiac surgery
  • Contraindication for anticoagulation therapy
  • Dual chamber pacemaker or ICD implanted or planned
  • Active systemic infection
  • Another (non-AF) indication for long term anticoagulation
  • Maze procedure
  • Inability to attend scheduled, periodic office visits for follow-up
  • Pregnancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Sheba Medical Center

Ramat Gan, 52621, Israel

RECRUITING

Related Publications (13)

  • Aranki SF, Shaw DP, Adams DH, Rizzo RJ, Couper GS, VanderVliet M, Collins JJ Jr, Cohn LH, Burstin HR. Predictors of atrial fibrillation after coronary artery surgery. Current trends and impact on hospital resources. Circulation. 1996 Aug 1;94(3):390-7. doi: 10.1161/01.cir.94.3.390.

  • Mitchell LB; CCS Atrial Fibrillation Guidelines Committee. Canadian Cardiovascular Society atrial fibrillation guidelines 2010: prevention and treatment of atrial fibrillation following cardiac surgery. Can J Cardiol. 2011 Jan-Feb;27(1):91-7. doi: 10.1016/j.cjca.2010.11.005.

  • Maisel WH, Rawn JD, Stevenson WG. Atrial fibrillation after cardiac surgery. Ann Intern Med. 2001 Dec 18;135(12):1061-73. doi: 10.7326/0003-4819-135-12-200112180-00010.

  • Creswell LL, Schuessler RB, Rosenbloom M, Cox JL. Hazards of postoperative atrial arrhythmias. Ann Thorac Surg. 1993 Sep;56(3):539-49. doi: 10.1016/0003-4975(93)90894-n.

  • European Heart Rhythm Association; European Association for Cardio-Thoracic Surgery; Camm AJ, Kirchhof P, Lip GY, Schotten U, Savelieva I, Ernst S, Van Gelder IC, Al-Attar N, Hindricks G, Prendergast B, Heidbuchel H, Alfieri O, Angelini A, Atar D, Colonna P, De Caterina R, De Sutter J, Goette A, Gorenek B, Heldal M, Hohloser SH, Kolh P, Le Heuzey JY, Ponikowski P, Rutten FH. Guidelines for the management of atrial fibrillation: the Task Force for the Management of Atrial Fibrillation of the European Society of Cardiology (ESC). Eur Heart J. 2010 Oct;31(19):2369-429. doi: 10.1093/eurheartj/ehq278. Epub 2010 Aug 29. No abstract available.

  • January CT, Wann LS, Alpert JS, Calkins H, Cigarroa JE, Cleveland JC Jr, Conti JB, Ellinor PT, Ezekowitz MD, Field ME, Murray KT, Sacco RL, Stevenson WG, Tchou PJ, Tracy CM, Yancy CW; ACC/AHA Task Force Members. 2014 AHA/ACC/HRS guideline for the management of patients with atrial fibrillation: executive summary: a report of the American College of Cardiology/American Heart Association Task Force on practice guidelines and the Heart Rhythm Society. Circulation. 2014 Dec 2;130(23):2071-104. doi: 10.1161/CIR.0000000000000040. Epub 2014 Mar 28. No abstract available.

  • Kowey PR, Stebbins D, Igidbashian L, Goldman SM, Sutter FP, Rials SJ, Marinchak RA. Clinical outcome of patients who develop PAF after CABG surgery. Pacing Clin Electrophysiol. 2001 Feb;24(2):191-3. doi: 10.1046/j.1460-9592.2001.00191.x.

  • Lee JK, Klein GJ, Krahn AD, Yee R, Zarnke K, Simpson C, Skanes A, Spindler B. Rate-control versus conversion strategy in postoperative atrial fibrillation: a prospective, randomized pilot study. Am Heart J. 2000 Dec;140(6):871-7. doi: 10.1067/mhj.2000.111104.

  • Pillarisetti J, Patel A, Bommana S, Guda R, Falbe J, Zorn GT, Muehlebach G, Vacek J, Sue Min Lai, Lakkireddy D. Atrial fibrillation following open heart surgery: long-term incidence and prognosis. J Interv Card Electrophysiol. 2014 Jan;39(1):69-75. doi: 10.1007/s10840-013-9830-6. Epub 2013 Nov 29.

  • Ahlsson A, Fengsrud E, Bodin L, Englund A. Postoperative atrial fibrillation in patients undergoing aortocoronary bypass surgery carries an eightfold risk of future atrial fibrillation and a doubled cardiovascular mortality. Eur J Cardiothorac Surg. 2010 Jun;37(6):1353-9. doi: 10.1016/j.ejcts.2009.12.033.

  • Authors/Task Force members; Windecker S, Kolh P, Alfonso F, Collet JP, Cremer J, Falk V, Filippatos G, Hamm C, Head SJ, Juni P, Kappetein AP, Kastrati A, Knuuti J, Landmesser U, Laufer G, Neumann FJ, Richter DJ, Schauerte P, Sousa Uva M, Stefanini GG, Taggart DP, Torracca L, Valgimigli M, Wijns W, Witkowski A. 2014 ESC/EACTS Guidelines on myocardial revascularization: The Task Force on Myocardial Revascularization of the European Society of Cardiology (ESC) and the European Association for Cardio-Thoracic Surgery (EACTS)Developed with the special contribution of the European Association of Percutaneous Cardiovascular Interventions (EAPCI). Eur Heart J. 2014 Oct 1;35(37):2541-619. doi: 10.1093/eurheartj/ehu278. Epub 2014 Aug 29. No abstract available.

  • Lee SH, Kang DR, Uhm JS, Shim J, Sung JH, Kim JY, Pak HN, Lee MH, Joung B. New-onset atrial fibrillation predicts long-term newly developed atrial fibrillation after coronary artery bypass graft. Am Heart J. 2014 Apr;167(4):593-600.e1. doi: 10.1016/j.ahj.2013.12.010. Epub 2014 Jan 4.

  • Lubitz SA, Yin X, Rienstra M, Schnabel RB, Walkey AJ, Magnani JW, Rahman F, McManus DD, Tadros TM, Levy D, Vasan RS, Larson MG, Ellinor PT, Benjamin EJ. Long-term outcomes of secondary atrial fibrillation in the community: the Framingham Heart Study. Circulation. 2015 May 12;131(19):1648-55. doi: 10.1161/CIRCULATIONAHA.114.014058. Epub 2015 Mar 13.

MeSH Terms

Conditions

Atrial Fibrillation

Condition Hierarchy (Ancestors)

Arrhythmias, CardiacHeart DiseasesCardiovascular DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Michael Glikson, MD

    Sheba Medical Center

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
PARALLEL
Sponsor Type
OTHER GOV
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Director of Davidai Arrhythmia Center, Leviev Heart Center, Sheba Medical Center

Study Record Dates

First Submitted

July 28, 2015

First Posted

August 13, 2015

Study Start

August 1, 2015

Primary Completion

December 1, 2017

Study Completion

December 1, 2019

Last Updated

October 19, 2017

Record last verified: 2017-10

Locations