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A Clinical Trial of the Use of Remote Heart Rhythm Monitoring With a Smartphone After Cardiac Surgery

Remote Heart Rhythm Monitoring Using Photoplethysmography-based Smartphone Technology for the Early Detection of Atrial Fibrillation and Adverse Events After Cardiac Surgery

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05509517
Acronym
SURGICAL-AF 2
Enrollment
450
Registered
2022-08-22
Start date
2021-11-02
Completion date
2023-09-04
Last updated
2023-11-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Arrhythmia, Atrial Fibrillation, Atrial Fibrillation and Flutter, Postoperative Complications

Keywords

Atrial Fibrillation, Digital Health, Artificial Intelligence, Cardiac Surgery, Postoperative atrial fibrillation (POAF)

Brief summary

The objective of the study is to evaluate the clinical consequences following the detection of postoperative atrial fibrillation or flutter (POAF) using a remote heart rhythm monitoring strategy with a photoplethysmography based smartphone technology in the early postoperative period after discharge.

Detailed description

A predefined subgroup analysis of the outcomes described below will be performed in the following subgroups: * Subjects not on anticoagulation drug therapy (for a planned duration of \>45 days) at discharge. * Subjects with no history of AF prior to surgery and no POAF lasting \>24h in hospital. * Subjects with a CHADSVASC score ≥ 4 or a CHADSVASC score ≥ 2 with at least one additional risk factor associated with the risk of developing POAF. additional risk factors include: * chronic obstructive pulmonary disease * sleep apnea * impaired renal function * left atrial enlargement * elevated body mass index * combined CABG with valve repair or replacement

Interventions

DIAGNOSTIC_TESTPhotoplethysmography based smartphone application for heart rhythm analysis (FibriCheck™)

Heart Rhythm assessment using the FibriCheck™ application with the patient's proprietary smartphone, three times daily, from discharge until follow-up consultation (day 21-91 after discharge).

Sponsors

Universitaire Ziekenhuizen KU Leuven
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Subject underwent any of (including a combination of) the following surgical procedures during index hospitalization. (coronary artery bypass graft, surgical repair or replacement of a cardiac valve) * Subject provides informed consent * Subject understands and agrees to comply with planned study procedures. * Subject is able to perform heart rhythm measurement using the FibriCheck application at home.

Exclusion criteria

* Pacemaker dependent heart rhythm * Permanent AF/Aflutter or AF/Aflutter present at the time of inclusion * Insufficient cognitive or comprehensive level of Dutch to participate to the trial. * No smartphone available at home.

Design outcomes

Primary

MeasureTime frameDescription
Proportion of participants with any of the following therapeutic interventions (composite 4-point endpoint)91 daysAny of the following therapeutic interventions: * Initiation or unplanned continuation of anticoagulation drug therapy resulting from arrhythmia detection * Initiation or increase in dose regimen of anti-arrhythmic drug therapy (Vaughan-williams class 1 or 3) * Cardioversion * Cardiac implantable electronic device (CIED) implantation
Time to detection of a postoperative adverse event91 daysPrespecified postoperative adverse events: 1.1. Acute respiratory insufficiency 1.2. Pleural effusion 1.3. Pneumonia 1.4. Pulmonary Embolism 1.5. Pneumothorax 1.6. Atelectasis, leading to respiratory insufficiency 2.1. Acute myocardial infarction 2.2. Symptomatic arrhythmia 2.3. Pericardial effusion 2.4. Pericarditis 2.5. Endocarditis 2.6. Systemic embolism 2.7. Cardiogenic shock 3.1. Acute stoke including cerebrovascular accident (CVA) and transient ischemic attack (TIA) 4.1. Renal failure, defined as: \>50% increase in serum creatinine or initiation of renal replacement therapy 4.2. Urinary tract infection, requiring antibiotic treatment 5\. Wound related complications requiring surgical intervention or antibiotic treatment. 6\. Sepsis 7\. Other unplanned hospitalisations will be classified by the research team as 'postoperative adverse event' or 'unrelated to the cardiac surgery procedure'. Such events will be reported with the study results.

Secondary

MeasureTime frameDescription
Post-operative atrial fibrillation (POAF) detection rate91 days
Time to POAF detection91 days
POAF detection rate in subjects with an indication for anticoagulation91 days
Time to primary endpoint (primary outcome 1)91 days
The EQ-5D-5L questionnaire score evolution between inclusion and follow-up consultation91 daysEQ-5D-5L is a EuroQol five-dimension scale questionnaire. The participant rates his or her own level of impairment across dimensions (mobility, self-care, usual activities, pain/discomfort, and anxiety/depression) from 1 to 5 and global health rating on a visual analogue scale (EQ-VAS) from 1 to 100.
Number of mayor adverse cardiac outcomes (All-cause death, Ischemic stroke, Myocardial infarction, Systemic embolism)Two yearsHierarchical secondary outcomes (will be analysed if the primary outcome is positive)
Number of mayor adverse cardiac outcomes (secondary outcome 9) with addition of cardiovascular hospitalisationsTwo yearsHierarchical secondary outcomes (will be analysed if the primary outcome is positive)
Detection rate of POAF lasting more than 6 hours91 days
Proportion of participants with initiation or unplanned continuation of anticoagulation drug therapy resulting from arrhythmia detection91 days

Countries

Belgium

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026