Implantable Cardiac Monitor to Detect Atrial Fibrillation in Patients With MINOCA

NCT ID: NCT05326828

Last Updated: 2024-10-30

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

60 participants

Study Classification

OBSERVATIONAL

Study Start Date

2022-05-24

Study Completion Date

2031-05-15

Brief Summary

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Myocardial infarction with non-obstructive coronary arteries (MINOCA) (i.e.\<50% stenoses) on coronary angiography) is an underappreciated clinical entity concerning 5-6% of patients with acute myocardial infarction. Approximately 50% of these patients remain without appropriate diagnosis and treatment.

The MINOCA study aims at systematically assessing the frequency of underlying pathologies of MINOCA and outcomes with a multidisciplinary etiologic work-up and follow-up of 5 years including, for the first time, an implantable cardiac monitor (ICM) to assess the frequency of atrial fibrillation as underlying cause for MINOCA.

Detailed Description

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Approximately 5-6% of patients with acute myocardial infarction (AMI) have myocardial infarction with non-obstructive coronary arteries (MINOCA) (i.e.\<50% stenoses) on coronary angiography and up to 50% of these patients remain without appropriate diagnosis and treatment. A multidisciplinary etiologic work-up of MINOCA has recently been proposed by international consensus documents. The present study aims for a structured scientific data collection from a full guideline-based work-up after MINOCA and follow-up of 5 years to assess clinical outcomes.

Untreated atrial fibrillation is a potentially neglected underlying cause of MINOCA. As implantable cardiac monitors (ICM) can detect atrial fibrillation with high accuracy, the aim of this study is, for the first time, to assess the occurrence of first diagnosed atrial fibrillation with the use of ICM in patients with MINOCA.

To allow for an all-comers data collection, patients with contraindication(s) to ICM implantation will be enrolled into the non-ICM group to assess the frequency of underlying causes of MINOCA and clinical outcomes throughout 5 years.

Conditions

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MINOCA Atrial Fibrillation

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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ICM group

Patients eligible for ICM implantation for screening of atrial fibrillation

CONFIRM Rx implantable cardiac rhythm monitor (Abbott)

Intervention Type DEVICE

Implantation of CONFIRM Rx ICM

Systematic etiologic work-up for underlying causes of MINOCA

Intervention Type DIAGNOSTIC_TEST

Intracoronary optical coherence tomography, cardiac magnetic resonance imaging, transesophageal echocardiography, vasospasm testing, thrombophilia screening, Holter ECG (only non-ICM group)

Non-ICM group

Patients ineligible for ICM implantation due to 1) refusal, 2) contraindication, or 3) clear underlying cause of MINOCA before ICM implantation.

Systematic etiologic work-up for underlying causes of MINOCA

Intervention Type DIAGNOSTIC_TEST

Intracoronary optical coherence tomography, cardiac magnetic resonance imaging, transesophageal echocardiography, vasospasm testing, thrombophilia screening, Holter ECG (only non-ICM group)

Interventions

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CONFIRM Rx implantable cardiac rhythm monitor (Abbott)

Implantation of CONFIRM Rx ICM

Intervention Type DEVICE

Systematic etiologic work-up for underlying causes of MINOCA

Intracoronary optical coherence tomography, cardiac magnetic resonance imaging, transesophageal echocardiography, vasospasm testing, thrombophilia screening, Holter ECG (only non-ICM group)

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

1. ≥18 years of age
2. Written informed consent
3. Acute myocardial infarction (AMI) type 1 in accordance with the 4th universal definition of myocardial infarction
4. Non-obstructive coronary arteries on angiography defined as the absence of coronary artery stenoses ≥50% in any potential infarct-related artery
5. No clinically overt specific cause for the acute presentation
6. Subendocardial or transmural late gadolinum enhancement (LGE) consistent with an ischemic etiology on cardiac magnetic resonance imaging (CMR)
7. No clear underlying cause of MINOCA and therefore increased probability of atrial fibrillation


1. ≥18 years of age
2. Written informed consent
3. AMI type 1 in accordance with the 4th universal definition of myocardial infarction
4. Non-obstructive coronary arteries on angiography defined as the absence of coronary artery stenoses ≥50% in any potential infarct-related artery
5. No clinically overt specific cause for the acute presentation
6. Subendocardial or transmural LGE consistent with an ischemic etiology on CMR

Exclusion Criteria

1. Known atrial fibrillation or atrial flutter
2. History of atrial fibrillation or atrial flutter ablation
3. Known coronary artery disease
4. Previous MI
5. Previous percutaneous coronary intervention (PCI)
6. Previous coronary artery bypass grafting (CABG)
7. Contraindications to CMR (i.e. non-MR-compatible implantable cardiac device, glomerular filtration rate (GFR) \<30 ml/min)
8. Contraindications to ICM implantation
9. Clear underlying cause of MINOCA before ICM implantation


1. Known coronary artery disease
2. Previous MI
3. Previous PCI
4. Previous CABG
5. Contraindications to CMR (i.e. non-MR-compatible implantable cardiac device, GFR \<30 ml/min)
Minimum Eligible Age

18 Years

Maximum Eligible Age

85 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University Hospital, Zürich

OTHER

Sponsor Role collaborator

Bangerter-Rhyner Stiftung

UNKNOWN

Sponsor Role collaborator

Abbott

INDUSTRY

Sponsor Role collaborator

Insel Gruppe AG, University Hospital Bern

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Lorenz Räber, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Bern University Hospital Inselspital

Locations

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Bern University Hospital Inselspital

Bern, , Switzerland

Site Status RECRUITING

University Hospital Zurich USZ

Zurich, , Switzerland

Site Status RECRUITING

Countries

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Switzerland

Central Contacts

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Lorenz Räber, MD, PhD

Role: CONTACT

+41 31 632 50 00

Sarah Bär, MD

Role: CONTACT

Facility Contacts

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Lorenz Räber, MD, PhD

Role: primary

+41 31 632 09 29

Sarah Bär, MD

Role: backup

+41 31 632 21 11

Barbara Stähli, MD

Role: primary

+41 43 253 05 97

References

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Agewall S, Beltrame JF, Reynolds HR, Niessner A, Rosano G, Caforio AL, De Caterina R, Zimarino M, Roffi M, Kjeldsen K, Atar D, Kaski JC, Sechtem U, Tornvall P; WG on Cardiovascular Pharmacotherapy. ESC working group position paper on myocardial infarction with non-obstructive coronary arteries. Eur Heart J. 2017 Jan 14;38(3):143-153. doi: 10.1093/eurheartj/ehw149. No abstract available.

Reference Type BACKGROUND
PMID: 28158518 (View on PubMed)

Tamis-Holland JE, Jneid H, Reynolds HR, Agewall S, Brilakis ES, Brown TM, Lerman A, Cushman M, Kumbhani DJ, Arslanian-Engoren C, Bolger AF, Beltrame JF; American Heart Association Interventional Cardiovascular Care Committee of the Council on Clinical Cardiology; Council on Cardiovascular and Stroke Nursing; Council on Epidemiology and Prevention; and Council on Quality of Care and Outcomes Research. Contemporary Diagnosis and Management of Patients With Myocardial Infarction in the Absence of Obstructive Coronary Artery Disease: A Scientific Statement From the American Heart Association. Circulation. 2019 Apr 30;139(18):e891-e908. doi: 10.1161/CIR.0000000000000670.

Reference Type BACKGROUND
PMID: 30913893 (View on PubMed)

Diederichsen SZ, Haugan KJ, Kronborg C, Graff C, Hojberg S, Kober L, Krieger D, Holst AG, Nielsen JB, Brandes A, Svendsen JH. Comprehensive Evaluation of Rhythm Monitoring Strategies in Screening for Atrial Fibrillation: Insights From Patients at Risk Monitored Long Term With an Implantable Loop Recorder. Circulation. 2020 May 12;141(19):1510-1522. doi: 10.1161/CIRCULATIONAHA.119.044407. Epub 2020 Mar 2.

Reference Type BACKGROUND
PMID: 32114796 (View on PubMed)

Hindricks G, Potpara T, Dagres N, Arbelo E, Bax JJ, Blomstrom-Lundqvist C, Boriani G, Castella M, Dan GA, Dilaveris PE, Fauchier L, Filippatos G, Kalman JM, La Meir M, Lane DA, Lebeau JP, Lettino M, Lip GYH, Pinto FJ, Thomas GN, Valgimigli M, Van Gelder IC, Van Putte BP, Watkins CL; ESC Scientific Document Group. 2020 ESC Guidelines for the diagnosis and management of atrial fibrillation developed in collaboration with the European Association for Cardio-Thoracic Surgery (EACTS): The Task Force for the diagnosis and management of atrial fibrillation of the European Society of Cardiology (ESC) Developed with the special contribution of the European Heart Rhythm Association (EHRA) of the ESC. Eur Heart J. 2021 Feb 1;42(5):373-498. doi: 10.1093/eurheartj/ehaa612. No abstract available.

Reference Type BACKGROUND
PMID: 32860505 (View on PubMed)

Smilowitz NR, Mahajan AM, Roe MT, Hellkamp AS, Chiswell K, Gulati M, Reynolds HR. Mortality of Myocardial Infarction by Sex, Age, and Obstructive Coronary Artery Disease Status in the ACTION Registry-GWTG (Acute Coronary Treatment and Intervention Outcomes Network Registry-Get With the Guidelines). Circ Cardiovasc Qual Outcomes. 2017 Dec;10(12):e003443. doi: 10.1161/CIRCOUTCOMES.116.003443.

Reference Type BACKGROUND
PMID: 29246884 (View on PubMed)

Pasupathy S, Air T, Dreyer RP, Tavella R, Beltrame JF. Systematic review of patients presenting with suspected myocardial infarction and nonobstructive coronary arteries. Circulation. 2015 Mar 10;131(10):861-70. doi: 10.1161/CIRCULATIONAHA.114.011201. Epub 2015 Jan 13.

Reference Type BACKGROUND
PMID: 25587100 (View on PubMed)

Barr PR, Harrison W, Smyth D, Flynn C, Lee M, Kerr AJ. Myocardial Infarction Without Obstructive Coronary Artery Disease is Not a Benign Condition (ANZACS-QI 10). Heart Lung Circ. 2018 Feb;27(2):165-174. doi: 10.1016/j.hlc.2017.02.023. Epub 2017 Mar 30.

Reference Type BACKGROUND
PMID: 28408093 (View on PubMed)

Safdar B, Spatz ES, Dreyer RP, Beltrame JF, Lichtman JH, Spertus JA, Reynolds HR, Geda M, Bueno H, Dziura JD, Krumholz HM, D'Onofrio G. Presentation, Clinical Profile, and Prognosis of Young Patients With Myocardial Infarction With Nonobstructive Coronary Arteries (MINOCA): Results From the VIRGO Study. J Am Heart Assoc. 2018 Jun 28;7(13):e009174. doi: 10.1161/JAHA.118.009174.

Reference Type BACKGROUND
PMID: 29954744 (View on PubMed)

Montenegro Sa F, Ruivo C, Santos LG, Antunes A, Saraiva F, Soares F, Morais J. Myocardial infarction with nonobstructive coronary arteries: a single-center retrospective study. Coron Artery Dis. 2018 Sep;29(6):511-515. doi: 10.1097/MCA.0000000000000619.

Reference Type BACKGROUND
PMID: 29608443 (View on PubMed)

Abdu FA, Liu L, Mohammed AQ, Luo Y, Xu S, Auckle R, Xu Y, Che W. Myocardial infarction with non-obstructive coronary arteries (MINOCA) in Chinese patients: Clinical features, treatment and 1 year follow-up. Int J Cardiol. 2019 Jul 15;287:27-31. doi: 10.1016/j.ijcard.2019.02.036. Epub 2019 Feb 20.

Reference Type BACKGROUND
PMID: 30826195 (View on PubMed)

Reynolds HR, Maehara A, Kwong RY, Sedlak T, Saw J, Smilowitz NR, Mahmud E, Wei J, Marzo K, Matsumura M, Seno A, Hausvater A, Giesler C, Jhalani N, Toma C, Har B, Thomas D, Mehta LS, Trost J, Mehta PK, Ahmed B, Bainey KR, Xia Y, Shah B, Attubato M, Bangalore S, Razzouk L, Ali ZA, Merz NB, Park K, Hada E, Zhong H, Hochman JS. Coronary Optical Coherence Tomography and Cardiac Magnetic Resonance Imaging to Determine Underlying Causes of Myocardial Infarction With Nonobstructive Coronary Arteries in Women. Circulation. 2021 Feb 16;143(7):624-640. doi: 10.1161/CIRCULATIONAHA.120.052008. Epub 2020 Nov 14.

Reference Type BACKGROUND
PMID: 33191769 (View on PubMed)

Other Identifiers

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2022-D0009

Identifier Type: -

Identifier Source: org_study_id

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