Predicting Severe Cardiac Arrhythmias in the Perioperative Period Using AI-ECG

NCT ID: NCT07348991

Last Updated: 2026-02-10

Basic Information

• Recruitment Status: NOT_YET_RECRUITING
• Total Enrollment: 300 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2026-12-31
• Study Completion Date: 2028-05-30

Brief Summary

During the preoperative examination, in addition to the standard examination recommended before high-risk cardiac surgeries, a digital single-lead ECG is recorded using portable CardioQUARK devices. This ECG is analyzed for time, amplitude, and frequency parameters-more than 200 parameters per cardiac cycle. Additionally, the available parameters of a standard 12-lead ECG recording are determined. All parameters of both single-lead and 12-lead ECGs will be included in a multivariate regression analysis to determine the optimal method for predicting atrial fibrillation, life-threatening cardiac arrhythmias, and conduction abnormalities in the perioperative period after high-risk cardiac procedures.

The study will include patients undergoing high-risk cardiac surgeries, such as those on the heart, aorta, esophagus, pancreas, liver, and lungs, as well as high-risk oncological surgeries. A partial analysis will also be performed depending on the type of intervention. Rhythm and conduction disturbances will be recorded during surgery, as well as in the postoperative period, using ECG monitors, 24-hour ECG monitoring, and repeated recordings of a standard ECG when complaints or signs of unstable hemodynamics arise

Detailed Description

In study, the investigators plan to identify single-channel and 12-lead ECG parameters that correlate significantly with the occurrence of atrial fibrillation and life-threatening cardiac arrhythmias and conduction disturbances in the perioperative period after high-risk cardiac interventions.

A prospective, non-randomized, observational, controlled, single-center study consisting of two consecutive stages is being conducted.

The first stage involves identifying single-channel and 12-lead ECG parameters that correlate significantly with the onset of atrial fibrillation and life-threatening cardiac arrhythmias and conduction disorders in the perioperative period after interventions with high cardiac risk. Participants who meet the inclusion criteria will undergo the following during preoperative preparation: recording of a digital single-channel ECG using the CardioQVARK software and hardware complex (CardioQVARK medical device (Electrocardiograph) issued by Roszdravnadzor (Federal Service for Surveillance in Healthcare) P3H 2024/22855, issued on June 5, 2024); a digital 12-lead ECG; an extended echocardiographic examination; and 24-hour Holter ECG monitoring.

The single-channel ECG will be recorded for 3 minutes at rest in a sitting position. The participants leans back against the back of the chair, legs uncrossed, arms resting on the knees or on the table. Standard lead I is recorded using the CardioQVARK software and hardware complex.

Next, the parameters of single-channel and 12-channel ECG are identified that have a reliable correlation with the occurrence of atrial fibrillation and life-threatening arrhythmias and conduction disorders in the perioperative period after interventions with high cardiac risk, followed by the creation of a machine learning model and/or or neural network analysis with deep learning support for predicting the occurrence of atrial fibrillation and life-threatening arrhythmias and conduction disorders.

The second stage will involve testing using a test sample of the algorithm, taking into account the ECG parameters which, according to the statistical analysis performed in the first stage, had the highest sensitivity and specificity in predicting the onset of atrial fibrillation and life-threatening cardiac arrhythmias and conductions disorders.

Conditions

Atrial Fibrillation; Atrioventricular Block, Second and Third Degree; Sinus Node Dysfunction; Ventricular Tachycardia (VT); Ventricular Fibrillation

Study Design

• Observational Model Type: COHORT
• Study Time Perspective: PROSPECTIVE

Study Groups

intervention group

patients meeting the inclusion criteria who are hospitalised for surgery with a high cardiovascular risk

digital single-channel ECG recording

Intervention Type: DIAGNOSTIC_TEST

A single-channel ECG will be recorded for 3 minutes while the patient is sitting at rest. The patient leans back against the chair, legs uncrossed, and arms resting on the knees or on the table. Standard lead I is recorded using the CardioQVARK software and hardware complex (CardioQVARK medical device (Electrocardiograph) issued by Roszdravnadzor (Federal Service for Surveillance in Healthcare) P3H 2024/22855, issued on June 5, 2024).

Interventions

digital single-channel ECG recording

A single-channel ECG will be recorded for 3 minutes while the patient is sitting at rest. The patient leans back against the chair, legs uncrossed, and arms resting on the knees or on the table. Standard lead I is recorded using the CardioQVARK software and hardware complex (CardioQVARK medical device (Electrocardiograph) issued by Roszdravnadzor (Federal Service for Surveillance in Healthcare) P3H 2024/22855, issued on June 5, 2024).

Intervention Type: DIAGNOSTIC_TEST

Eligibility Criteria

Inclusion Criteria

• Patients over 18 years of age;
• Scheduled surgery with high cardiac risk
• Informed consent was given to participate in the study

Exclusion Criteria

• Cancellation of the surgery for any reason;
• The patient's unwillingness to continue participating in the study;
• Poor quality of the ECG recording on a single-channel ECG monitor.

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

I.M. Sechenov First Moscow State Medical University

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Central Contacts

Peter Chomakhidze, Prof.

Role: CONTACT

chomakhidze_p_sh@staff.sechenov.ru

+79166740369

Ivan Kuznetsov, Dr.

Role: CONTACT

ivankuz1310@gmail.com

+79688487558

References

Paroxysms of atrial fibrillation during planned cardiac surgery under artificial circulation / E. P. Gulyaeva-Seltsovskaya, I. Dkhif, A. A. Mols [et al.] // Bulletin of the Smolensk State Medical Academy. - 2023. - Vol. 22, No. 4. - P. 100-106. - DOI 10.37903/vsgma.2023.4.14. - EDN MIIWSU

Reference Type: BACKGROUND

Chomakhidze P.Sh., Kurbanalieva N.K., Nebezhev A.A., Sedov V.P., Syrkin A.L. Modern aspects of preoperative examination in planned extracardiac interventions. Consilium Medicum. 2025;27(1): DOI: 10.26442/20751753.2025.1.203060 © CONSILIUM MEDICUM LLC, 2025

Reference Type: BACKGROUND

Other Identifiers

ChPSH1

Identifier Type: -

Identifier Source: org_study_id