Automatic event detection
Predefined rhythm events can be captured even when the patient is asymptomatic or unable to activate the monitor.
LIVE ECG STREAMING | ATTENDED SURVEILLANCE | PHYSICIAN-READY INFORMATION
Mobile Cardiac Telemetry Built for Modern Cardiology Practices
Mobile Cardiac Telemetry (MCT) is ambulatory ECG monitoring for cardiology and structural heart practices that need longer surveillance than a short Holter study, with computerized rhythm analysis and transmission of qualifying events while the study is active. Specialized Medical supports ordering physicians with LIVE ECG transmission when connectivity is available, 24/7 attended monitoring and patient support, physician-prescribed email/text/phone notifications, operational visibility, and physician-ready reporting. Practices can start with a no-risk pilot or request a demonstration to evaluate enrollment, hookup, notifications and reporting workflow.
LIVE MCT Capabilities for Physician Practices
- 1-30 Days of MonitoringPhysician-directed ambulatory monitoring window
- LIVE ECG TransmissionECG data transmitted during the prescribed study
- Automatic + Patient-Triggered EventsECG-triggered and patient-selected capture
- 24/7 Monitoring & SupportAttended surveillance and patient support around the clock
- Prescribed NotificationsEmail, text and/or phone per the ordering physician’s protocol
- Operational VisibilityBattery, electrodes, signal and connectivity status while the study is active
- Physician-Ready ReportsOrganized findings for review and signature
- $0 Capital EquipmentNo equipment purchase required to start monitoring
$0 Capital Equipment Investment — Complete Turnkey Cardiac Monitoring for Your Practice
Specialized Medical provides the monitoring equipment, technology, patient supplies, and operational support needed to offer Mobile Cardiac Telemetry without requiring the practice to purchase capital equipment.
Practices can evaluate and run MCT as a turnkey program: devices, Stay Connected connectivity, patient education materials, 24/7 monitoring support, and physician-ready reporting are supplied through Specialized Medical. This statement refers to capital equipment investment only. Per-test fees and other applicable contractual charges may apply under the practice agreement.
A Simple, Fast Office Workflow That Minimizes Staff Time
Specialized Medical is designed so clinical staff can run an effective MCT program with minimal administrative workload: pre-enroll ahead of the visit, complete a streamlined hookup and disconnect under normal conditions in under 10 minutes, then leave 24/7 monitoring, patient support, and technical assistance to our team.
- Pre-enroll ahead of the visit: Patients can be enrolled in the web portal days or weeks before their appointments so the office visit focuses on hookup and education.
- Under 10 minutes under normal conditions: The streamlined enroll, hookup, and disconnect process can be completed in under 10 minutes when the visit is prepared and connectivity is available.
- 24/7 monitoring and support: Specialized Medical provides attended monitoring, patient support, and technical assistance around the clock while the study is active.
- Physician-ready final reports: Reports are generated for physician review, interpretation, dating, and electronic signature.
- Simpler billing workflows: Collecting the necessary patient and insurance information in the portal helps support cleaner billing templates and fewer back-and-forth steps for the practice.
See the full Enroll → Hook Up → Disconnect practice workflow for operational detail.
Equipment and Technology Advantages Up Front
The S-Patch system is the hardware foundation of Specialized Medical’s LIVE MCT program—lightweight, ambulatory, and built for multi-day wear with operational visibility while the study is active.
- Lightweight S-Patch: approximately 0.6 ounces for comfortable ambulatory wear.
- Up to 30 days of monitoring: with appropriate battery management, including scheduled patch replacement and/or recharge steps when the prescribed period exceeds a single battery window.
- IP55 water-resistant design: suitable for normal daily activities when patients follow wear instructions.
- LIVE ECG viewing and monitoring: ECG data may transmit during the active study when connectivity is available, with attended surveillance and physician-prescribed notifications.
- Multi-carrier cellular connectivity: Stay Connected technology can use available pathways from major U.S. carriers, including AT&T, T-Mobile, and Verizon. Uninterrupted coverage is not guaranteed.
- One platform, four workflows: Holter, Long-Term Holter (extended Holter), Event Monitoring, and MCT on a single monitoring platform.
More operational detail is in the S-Patch LIVE monitoring section and on cardiac monitoring equipment.
What Is Mobile Cardiac Telemetry (MCT)?
Mobile Cardiac Telemetry is temporary ambulatory ECG monitoring with computerized rhythm analysis and transmission of ECG-triggered and patient-selected events to an attended surveillance center for up to 30 days when connectivity is available—supporting prescribed notifications, patient support, and physician-ready reporting without replacing emergency care.
Mobile Cardiac Telemetry is a temporary ambulatory ECG monitoring modality that combines ongoing computerized rhythm analysis with transmission of ECG-triggered and patient-selected events to an attended surveillance center. MCT may be worn for up to 30 days when the treating physician needs a longer monitoring window and the ability to review qualifying findings while the study is still active. MCT is also known as mobile cardiac outpatient telemetry (MCOT). MCT is not the same as inpatient telemetry and does not replace emergency evaluation.[1][2]
Specialized Medical supports cardiac monitoring services with LIVE ECG monitoring, prescribed notification protocols, operational visibility while the study is active, and physician-ready reporting.
Why Mobile Cardiac Telemetry Provides More Active Rhythm Surveillance
Unlike a short-duration Holter study, MCT can extend ambulatory monitoring for up to 30 days. Unlike a patient-activated event monitor alone, MCT can analyze rhythm data and identify predefined events even when the patient does not recognize symptoms or press a button. Qualifying findings may be presented during the active study according to the physician’s prescribed notification protocol, while patient-triggered symptoms can be matched to the corresponding ECG.[1][2]
Patient-triggered symptoms
Patients can log symptoms so the physician can compare the reported experience with the ECG at that time.
Active-study information
Qualifying findings may be presented while monitoring is still underway, according to the prescribed protocol.
Longer monitoring window
A 1-30 day monitoring period increases the opportunity to capture intermittent rhythm disturbances that may not occur during a short test.
Attended surveillance
ECG-triggered and patient-selected events are transmitted to an attended monitoring environment for analysis and documentation.
Evidence Supporting Mobile Cardiac Telemetry
Published evidence supports the use of ambulatory ECG monitoring for intermittent symptoms, asymptomatic arrhythmia detection, treatment-response assessment and selected post-procedure populations. Results below are study-specific findings, not guarantees that every patient or every MCT system will achieve the same result.
In a 17-center randomized study of 266 patients with syncope, presyncope or severe palpitations after a nondiagnostic 24-hour Holter study, a diagnosis was reached in 88% of patients assigned to MCOT compared with 75% assigned to a standard loop event monitor. Clinically significant arrhythmias were identified in 41% of the MCOT group compared with 15% of the loop-monitor group. These results apply to the studied population and should not be presented as a universal performance guarantee.[3]
A separate clinical series evaluated MCOT for palpitations, presyncope, syncope and antiarrhythmic-therapy assessment. The investigators reported clinically significant asymptomatic arrhythmias and found that 7 of 21 patients monitored for medication titration had dosage adjustments during outpatient monitoring. The treating physician, not the monitoring service, determines whether medication should be started, changed or stopped.[4]
CMS ambulatory ECG guidance [1]
Defines external mobile cardiovascular telemetry as concurrent computerized real-time analysis with ECG-triggered and patient-selected events transmitted to an attended surveillance center; may be worn up to 30 days.
CMS A59268 / L40244
ISHNE-HRS consensus [2]
AECG is used for palpitations, syncope, AF detection, therapy-response assessment and selected outpatient antiarrhythmic monitoring; technology selection should match symptom frequency and clinical need.
Heart Rhythm / Ann Noninvasive Electrocardiol, 2017
Rothman et al. randomized trial [3]
MCOT achieved higher diagnostic confirmation and higher clinically significant arrhythmia detection than a standard patient-activated loop recorder in the studied population.
PMID 17318994
Olson et al. clinical series [4]
MCOT identified asymptomatic arrhythmias and was used during outpatient medication titration; 7 of 21 medication-titration patients had dose adjustments.
PMID 17343724
Post-TAVR MCT study [5]
A standardized 30-day MCT program detected conduction abnormalities requiring pacemaker placement and new AF/flutter after TAVR.
PMID 38388248
How MCT Differs From Holter and Event Monitoring
The correct monitoring test depends on the physician’s clinical objective, symptom frequency, required monitoring duration and need for information during the active study. Longer duration alone does not make Long-Term Holter (also called extended Holter) a substitute for MCT when attended surveillance and presentation of qualifying findings during the study are desired.
| Consideration | Holter | Long-Term Holter | Event | MCT |
|---|---|---|---|---|
| Typical duration | 24-48 hours | 3-14 days | Up to 30 days | Up to 30 days |
| Recording approach | Continuous ECG recording | Continuous ECG recording | Patient-triggered and/or auto-triggered event capture | Continuous computerized analysis with ECG-triggered and patient-selected events |
| When clinical findings are generally presented | After final report | After final report | During the test when qualifying findings meet the prescribed protocol | During the test when qualifying findings meet the prescribed protocol |
| Specialized Medical LIVE operational visibility | Yes for LIVE version | Yes for LIVE version | Yes | Yes |
| Best-fit question | What occurred during a short, defined window? | What occurred during a longer continuous-recording window? | Can intermittent symptoms/events be captured over time? | Can intermittent and asymptomatic findings be actively surveilled and presented during the study? |
Operational visibility means Specialized Medical can monitor device and transmission status. Clinical surveillance means qualifying ECG findings may be presented during the test. All LIVE test types can have operational visibility, while MCT and Cardiac Event Monitoring have active-study clinical notification workflows. Compare also with Holter monitoring and Long-Term Holter monitoring.
When Physicians May Consider Mobile Cardiac Telemetry
MCT may be considered when symptoms or suspected arrhythmias are intermittent, when a short monitoring period has been nondiagnostic, when automatic detection of asymptomatic events is important, or when the physician needs qualifying findings presented during an active ambulatory study. Patient selection, monitoring duration and notification parameters remain physician decisions and must follow payer and institutional requirements.[1][2]
- Unexplained palpitations, dizziness, presyncope or syncope when an arrhythmic cause is suspected
- Suspected paroxysmal atrial fibrillation or atrial flutter, including asymptomatic episodes
- Intermittent bradycardia, pauses, atrioventricular block or tachyarrhythmia
- Symptoms occurring less frequently than the useful window of a short Holter study
- Evaluation of arrhythmia burden or symptom-rhythm correlation
- Assessment of response to physician-directed medication changes or arrhythmia procedures
- Selected patients after ablation, cardiac procedures or TAVR
- Selected patients with embolic events or cryptogenic stroke when occult AF is suspected, subject to guideline and payer requirements
Clinically Important Rhythm Findings MCT May Capture
Depending on the patient, device configuration, signal quality and physician-prescribed parameters, MCT may record and present findings such as atrial fibrillation or flutter, supraventricular tachycardia, ventricular tachycardia or wide-complex tachycardia, significant bradycardia, pauses, atrioventricular block, premature atrial or ventricular beats, and symptom-correlated sinus rhythm. The treating physician interprets the ECG and determines clinical significance.
Atrial rhythms
Atrial fibrillation, atrial flutter, atrial tachycardia and other supraventricular rhythms.
Ventricular rhythms
Ventricular tachycardia, wide-complex tachycardia and ventricular ectopy.
Slow rhythms and conduction
Bradycardia, pauses, second-degree or high-grade AV block and complete heart block.
Symptom correlation
Palpitations, dizziness, shortness of breath, chest discomfort, presyncope or syncope correlated with ECG.
Asymptomatic findings
Automatically detected rhythm events that occur without a patient-reported symptom.
Specialized Medical records, detects, identifies, captures, and presents qualifying ECG findings for physician review. The monitoring system does not independently diagnose, treat, prevent, or guarantee avoidance of hospitalization, stroke, sudden death, or pacemaker implantation.
Evaluating Treatment Response During an Active MCT Study
Because qualifying findings can be reviewed while monitoring is still underway, a treating physician may use MCT information when evaluating the response to a medication initiation, dosage change, discontinuation or other rhythm-management strategy. When clinically appropriate, the physician may change therapy during the monitoring period and observe subsequent ECG patterns. Published evidence and expert consensus support ambulatory ECG monitoring for treatment-response assessment and selected outpatient antiarrhythmic monitoring.[2][4]
MCT does not replace a 12-lead ECG, laboratory testing, QT assessment, inpatient observation or any drug-specific monitoring required by labeling, guidelines or institutional protocol. Certain antiarrhythmic medications must be initiated in a monitored inpatient setting. All medication decisions belong to the treating clinician.
MCT for Post-Procedure and Post-TAVR Rhythm Surveillance
MCT may be used in selected patients after arrhythmia procedures or transcatheter aortic valve replacement when the treating team wants extended ambulatory surveillance and active-study notification of qualifying findings. Specialized Medical’s MCT system may support selected post-TAVR pathways because it combines attended LIVE ECG monitoring, physician-prescribed notification of qualifying arrhythmias, proactive patient support and Stay Connected multi-carrier technology designed to help maintain transmission as patients recover at home, including in many rural areas. After TAVR, the system may identify delayed high-grade AV block, complete heart block, bradycardia, pauses and new atrial fibrillation or flutter. This supports post-discharge rhythm surveillance during a clinically significant recovery period when ordered by the structural heart team. Patient selection and monitoring duration remain under the direction of the structural heart team. More detail is in this section and on the post-TAVR cardiac monitoring page.[1][5]
LIVE MCT Monitoring Built Around the S-Patch System
Specialized Medical combines LIVE ECG transmission with attended clinical surveillance and operational monitoring while the study is active and connectivity is available. The S-Patch cardiac monitoring system is designed for ambulatory wear while the monitoring team maintains visibility into battery status, electrode contact, ECG signal quality, Bluetooth communication, cellular connectivity, patient connection and successful data transmission. When an operational problem is detected, Specialized Medical can proactively contact the patient to help restore the study.
LIVE ECG transmission
ECG data may be transmitted while the study is active and connectivity is available. Qualifying findings may be reviewed during the monitoring period—rather than only after the final report—helping practices avoid end-of-study-only review delays when connectivity is available. Notifications are delivered by email, text and/or phone according to the ordering physician’s selected protocol. Specialized Medical provides 24/7 attended monitoring and patient support. Mobile Cardiac Telemetry does not replace emergency medical services.
Prescribed notification protocol
Notification thresholds, recipients and escalation methods follow the ordering physician’s selected protocol.
Operational visibility
Battery, electrodes, signal quality, Bluetooth, cellular connection, patient connection and transmission status are monitored.
Proactive patient outreach
When a technical or connection problem is identified, the patient can be contacted for troubleshooting and support.
Stay Connected multi-carrier technology
The platform can use available cellular pathways from major U.S. carriers to help maintain connection across urban, suburban and many rural environments. If transmission is interrupted, operational monitoring can identify the issue so the patient can be contacted. Uninterrupted coverage is not guaranteed.
Digital symptom logging
Patient-entered symptoms are time-linked to ECG data and displayed with symptomatic versus asymptomatic context.
Physician-ready reports
Reports organize relevant ECG findings for review, interpretation, dating and electronic signature.
Practice support
Specialized Medical supports enrollment, supplies, patient education, monitoring, technical support, reporting and billing templates.
Device specifications:
- S-Patch weight: 0.6 oz
- Minimum battery duration: 10 days
- Water resistance: IP55
- Supports monitoring periods up to 30 days
- One monitoring platform supports Holter, Long-Term Holter, Event and MCT workflows
For a physician-ordered study longer than the single-patch battery window, Specialized Medical supports continued monitoring through scheduled patch replacement and/or recharge steps so the prescribed period can extend up to 30 days.
Compare cardiac monitoring equipment options used across Specialized Medical services.
Patient Symptom Logging and Experience
Patients can enter symptoms digitally during the test. The symptom time is associated with the ECG timeline so the final report can clearly show whether a finding was symptomatic or asymptomatic. This removes reliance on a separate handwritten diary and supports more efficient physician review.
The S-Patch is designed for ambulatory wear during normal daily activities. Specialized Medical provides patient education and technical support so the study has the best opportunity to be completed successfully.
Emergency symptoms
Patients with chest pain, severe shortness of breath, fainting, stroke symptoms, or other urgent symptoms should follow their physician’s instructions and seek emergency assistance — call 911 — rather than waiting for a monitoring call.
A Turnkey MCT Workflow for the Physician Practice
The core practice workflow is Enroll in Web Portal → Hook Up → Disconnect. Patients may be pre-enrolled days or weeks before the visit, and under normal operating conditions the office steps can be completed in under 10 minutes. Specialized Medical then carries 24/7 monitoring, patient support, and technical assistance so staff time stays focused on patient care and physician interpretation.
- Enroll in Web Portal: Enter patient, insurance and prescribing information in the secure physician portal (including ahead of the appointment when preferred) and confirm the notification protocol. Capturing this information early also helps simplify billing workflows.
- Hook Up: Apply the monitor in the office, confirm connection and educate the patient on wear instructions and symptom logging. ECG data can transmit during the active study when connectivity is available—there is no manual upload step for LIVE MCT transmission.
- Disconnect: At the end of the prescribed monitoring period, the patient removes the monitor as instructed by the practice. Devices are returned through the practice’s Specialized Medical supply workflow for processing and reuse, and the final physician-ready report is prepared for interpretation and electronic signature.
Operational detail that supports the summary:
- Physician order and protocolSelect the indication, monitoring duration, notification thresholds, recipients and escalation instructions (email, text and/or phone).
- Patient enrollmentEnter patient, insurance and prescribing information in the secure portal.
- Office hookup and educationApply the monitor correctly, confirm connection and explain symptom logging and wear instructions.
- 24/7 LIVE monitoring and supportSpecialized Medical provides attended monitoring and patient support around the clock while the study is active and connectivity is available.
- Qualifying notificationsPresent qualifying findings according to the prescribed email, text and/or phone protocol.
- Disconnect, return and final reportingComplete disconnect and device return/reuse handling, then provide the final physician-ready report for review, interpretation, signature and clinical filing.
Selected post-discharge pathways are covered on the Post-TAVR cardiac monitoring page.
CPT Codes Commonly Associated With Mobile Cardiac Telemetry
Mobile Cardiac Telemetry services may involve CPT 93228 for the professional component and CPT 93229 for the technical component. Which entity may report each component depends on the services performed, contractual arrangement, payer requirements, and applicable billing rules. Coverage, prior authorization, frequency, documentation, and reimbursement vary by payer and plan. This information does not guarantee coverage, payment, or profitability.[1]
A Local Coverage Determination or billing article is not a universal national rule. Medical necessity, prior authorization, frequency, and documentation requirements vary by payer, plan, and Medicare Administrative Contractor jurisdiction. Confirm requirements with each payer before ordering.
Author, Clinical Review and References
Editorial review
Last updated: October 30, 2026
Reviewed by Specialized Medical for service, workflow, and technical accuracy. This page provides general information for healthcare professionals and does not replace clinical judgment, payer requirements, emergency services, or institutional protocols.
Editorial policy
Specialized Medical publishes monitoring-service and technology information for healthcare professionals. Content is reviewed for clinical accuracy before publication. Corrections or questions may be directed to Contact Specialized Medical or 1-855-SPEC-MED (1-855-773-2633). Specialized Medical is a cardiac monitoring service and technology provider; it does not replace physician judgment, emergency care, payer policy or institutional protocols.
References
- CMS Billing and Coding: Ambulatory Electrocardiograph (AECG) Monitoring, A59268; Temporary Nontherapeutic Ambulatory Cardiac Monitoring Devices, L40244
- Steinberg JS, et al. 2017 ISHNE-HRS expert consensus statement on ambulatory ECG and external cardiac monitoring/telemetry. Ann Noninvasive Electrocardiol. 2017;22:e12447. PMCID: PMC6931745
- Rothman SA, et al. The diagnosis of cardiac arrhythmias: a prospective multi-center randomized study comparing mobile cardiac outpatient telemetry versus standard loop event monitoring. J Cardiovasc Electrophysiol. 2007;18(3):241-247. PMID: 17318994
- Olson JA, et al. Utility of mobile cardiac outpatient telemetry for the diagnosis of palpitations, presyncope, syncope, and the assessment of therapy efficacy. J Cardiovasc Electrophysiol. 2007;18(5):473-477. PMID: 17343724
- Beccarino N, et al. The utility and impact of outpatient telemetry monitoring in post-transcatheter aortic valve replacement patients. Cardiovasc Revasc Med. 2024;64:15-20. PMID: 38388248
For the full program overview, see cardiac monitoring services.
Start a No-Risk MCT Pilot
A physician practice can request a demonstration or begin a small no-risk pilot program. The evaluation should review patient enrollment, hookup, LIVE ECG transmission, notification protocols, operational support, symptom logging, reporting, physician interpretation workflow and billing support.
Frequently Asked Questions
Mobile Cardiac Telemetry is an ambulatory ECG monitoring service that uses computerized rhythm analysis and transmits ECG-triggered and patient-selected events to an attended surveillance center. It can be prescribed for up to 30 days. Specialized Medical’s workflow adds LIVE ECG transmission, physician-prescribed notifications, operational visibility while the study is active, patient support and physician-ready reporting.
MCT may be prescribed for a monitoring episode of up to 30 consecutive days. The treating physician selects the appropriate duration based on the clinical question, symptom frequency, patient risk and payer requirements. A longer period is not automatically necessary for every patient.
Holter monitoring records continuously for a shorter defined period, and clinical findings are generally presented after the final report. MCT can continue for up to 30 days and supports attended surveillance, automatic event detection and presentation of qualifying findings during the active study according to the physician’s notification protocol.
Event Monitoring focuses on patient-triggered and selected auto-triggered ECG events over an extended period. MCT adds concurrent computerized rhythm analysis and attended surveillance. That distinction can be important when asymptomatic arrhythmias are suspected or when the physician wants a more active clinical-notification workflow.
Specialized Medical provides 24/7 attended monitoring and patient support during an MCT study. Qualifying findings are presented by email, text and/or phone according to the ordering physician’s selected protocol, which sets notification thresholds, recipients and escalation methods. MCT does not replace emergency care. Patients with urgent symptoms should call 911.
Practices receive operational support after enrollment and hookup, including LIVE monitoring support, qualifying notifications per protocol, proactive patient outreach when connection issues are detected, and physician-ready reports organized for review, interpretation, dating and electronic signature.
Yes. MCT can automatically capture predefined rhythm events even when the patient does not recognize symptoms or press a button. Published clinical experience has reported clinically important asymptomatic arrhythmias during MCOT monitoring. The treating physician interprets each ECG and determines its significance.
Mobile Cardiac Telemetry services may involve CPT 93228 for the professional component and CPT 93229 for the technical component. Which entity may report each component depends on the services performed, contractual arrangement, payer requirements, and applicable billing rules. Coverage, prior authorization, frequency, documentation, and reimbursement vary by payer and plan. This information does not guarantee coverage, payment, or profitability.
No. MCT is an ambulatory monitoring service for appropriately selected patients. It is not intended to replace inpatient telemetry, emergency evaluation or immediate treatment for patients with unstable or potentially life-threatening conditions. The treating physician determines the appropriate care setting.
Yes, in selected patients. Specialized Medical’s MCT workflow combines attended LIVE ECG transmission, physician-prescribed notification of qualifying arrhythmias, proactive patient support and Stay Connected multi-carrier technology that helps maintain transmission when connectivity is available. It may identify delayed high-grade AV block, complete heart block, bradycardia, pauses and new atrial fibrillation or flutter after discharge. Patient selection and monitoring duration are determined by the structural heart team.
Specialized Medical’s Stay Connected multi-carrier technology uses available cellular pathways from major U.S. networks to help patients remain connected across urban, suburban and many rural areas. If a connection or transmission problem is detected, Specialized Medical can proactively contact the patient to help restore the study. Actual performance depends on available network coverage, building conditions and local factors, so uninterrupted coverage is not guaranteed.
A physician practice can request a demonstration or begin a small no-risk pilot program. The evaluation should review patient enrollment, hookup, LIVE ECG transmission, notification protocols, operational support, symptom logging, reporting, physician interpretation workflow and billing support.
Start a No-Risk MCT Pilot
Tell us about your practice, and a Specialized Medical representative will contact you regarding an MCT demonstration or pilot program.
Prefer to talk? Speak With a Cardiac Monitoring Specialist — 1-855-SPEC-MED (1-855-773-2633)
Specialized Medical provides diagnostic ambulatory monitoring. The system is not a replacement for emergency medical services. Patients with urgent symptoms should call 911 or follow emergency instructions rather than waiting for a monitoring call.
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Related Cardiac Monitoring Resources
Diagnostic Service Disclaimer: Specialized Medical provides ambulatory cardiac monitoring services and diagnostic information for review by qualified healthcare providers. The service does not replace physician judgment, emergency medical services, or instructions to call 911 when urgent symptoms occur.