RX-1 Rhythm Express Remote Cardiac Monitoring System

by VivaQuant  · Based in United States → — Next-Level Remote Cardiac Monitoring for Enhanced Diagnostics and Patient Comfort.
Cardiology
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Available via subscription, fee-for-service, or split-bill models.
Regulatory Status Disclosed

Overview

The RX-1 Rhythm Express Remote Cardiac Monitoring System, also known as the RX-1 mini, is a portable, battery-powered, patch-style device designed for continuous ECG monitoring in adult patients weighing over 10 kg. It functions in three modes: Mobile Cardiac Telemetry (MCT), Event Recorder (ER), and Wireless Holter (WH), typically worn for 1 day to 4 weeks as prescribed by a physician.

A key differentiator is VivaQuant’s proprietary Multi-Domain Signal Processing (MDSP™) technology, which employs wavelet-based analytics and AI to remove up to 95% of noise from ambulatory ECGs without distorting morphology. This results in superior ECG clarity, improved arrhythmia detection accuracy, and reduced variability of cardiac interval measurements, even in noisy environments.

The device captures 2-channel ECGs via standard electrodes and incorporates a cellular modem for near real-time, secure data transmission to a cloud-based platform. Clinicians in a US-based monitoring center review the incoming data and provide event notifications within 20 minutes and comprehensive summary reports within 24-48 hours.

Key features include an extended battery life of up to 5 days on a single charge, a water-resistant (IP64) design allowing for showering, and a compact, comfortable form factor to enhance patient compliance. Patients can also manually trigger recordings for symptom correlation.

The Rhythm Express system is intended for patients with or at risk of cardiac disease, those demonstrating intermittent symptoms indicative of cardiac disease, and for monitoring non-life-threatening arrhythmias (e.g., atrial fibrillation, atrial flutter, PACs, PSVT), bradyarrhythmias, and intermittent bundle branch block. It is also used for evaluating arrhythmias associated with co-morbid conditions, symptoms like dizziness or syncope, palpitations, outpatient monitoring of antiarrhythmic therapy, and for arrhythmia evaluation in sleep-disordered breathing or stroke/TIA etiology.

Reviewed by Pouyan Golshani, MD — Interventional Radiologist

Key Features

  • Proprietary Multi-Domain Signal Processing (MDSPu2122) technology for noise suppression
  • AI-enabled advanced signal processing for arrhythmia detection
  • Continuous 2-channel ECG monitoring
  • Mobile Cardiac Telemetry (MCT), Event Recorder (ER), and Wireless Holter (WH) modes
  • Extended battery life (up to 5 days on a single charge)
  • Water-resistant (IP64) and compact design
  • Built-in cellular connectivity for near real-time data transmission
  • Automated arrhythmia detection and patient-triggered event recording
  • Secure cloud-based data platform with NSA-level encryption
  • 24/7/365 US-based monitoring center oversight

Use Cases

  • Monitoring patients with or at risk of cardiac disease
  • Evaluating intermittent symptoms indicative of cardiac disease (e.g., dizziness, syncope, dyspnea, palpitations)
  • Detecting and characterizing non-life-threatening arrhythmias (e.g., Afib, atrial flutter, PACs, PSVT)
  • Assessing bradyarrhythmias and intermittent bundle branch block
  • Outpatient monitoring of antiarrhythmic therapy effects
  • Arrhythmia evaluation for sleep-disordered breathing or stroke/TIA etiology

What Physicians Need to Know

ECG/EKG Analysis Capability
The RX-1 Rhythm Express utilizes patented MultiDomain Signal Processing (MDSPu2122) wavelet-based analytics to remove up to 95% of noise from ambulatory ECGs, providing superb ECG clarity without distorting morphology. It offers automated ECG analysis software for extracting ECG intervals (including QT), performing beat-to-beat analytics, and generating comprehensive reports. The device captures 2-channel ECGs and provides enhanced P-wave visibility for a more comprehensive view of cardiac activity.
Arrhythmia Detection Accuracy
The system employs embedded artificial intelligence and advanced wavelet-based analytics to identify arrhythmias quickly and accurately, even in noisy environments, setting a new standard for arrhythmia reporting accuracy. It is designed to detect non-life-threatening arrhythmias such as supraventricular tachycardias (e.g., atrial fibrillation, atrial flutter, PACs, PSVT), ventricular ectopy, bradyarrhythmias, and intermittent bundle branch block. Its diagnostic accuracy is stated to meet or exceed traditional Holter monitors.
Cardiac Monitoring Integration
The RX-1 mini communicates continuously recorded ECG data to the cloud using a built-in cellular connection, enabling near real-time data transmission without patient intervention. A cloud-based provider portal allows clinicians to access patient reports, manage devices and tests, set notification parameters, and view customizable dashboards. The system offers robust EHR interfacing capabilities through an integration partner that has completed over 9000 EHR integrations across more than 90 systems.
AHA/ACC Guideline Alignment
The RX-1 mini device is FDA-cleared, meeting necessary regulatory requirements for cardiac monitoring devices. Its Quality Management System is certified by the British Standards Institution (BSI) to the Medical Device Single Audit Program (MDSAP), which is equivalent to ISO 13485 certification, ensuring high standards in device manufacturing and service delivery.
Real-Time Alert Capability
The system provides near real-time event detection, with critical events identified by a 24/7/365 US-based monitoring center and reported to the designated physician according to predetermined notification protocols. While it communicates events to the monitoring center within one to seven minutes (assuming cell service), the RX-1 mini is not intended to sound alarms or function as an emergency medical response system for life-threatening arrhythmias requiring inpatient monitoring.
Physician Tip

Leverage the RX-1 Rhythm Express for its superior noise suppression and high-clarity 2-channel ECGs, which enhance arrhythmia detection accuracy, particularly for conditions like Afib and PVCs. Utilize the comprehensive reports and the 24/7 monitoring center for efficient patient management and timely notification of critical, non-life-threatening events. Remember that while it offers near real-time data transmission, it is not designed for immediate life-support or emergency alarming for acute, life-threatening arrhythmias requiring inpatient care. Integrate the system with existing EHRs to streamline workflows and improve data accessibility.

The RX-1 Rhythm Express offers strong integration capabilities, including a cloud-based provider portal and established EHR interfacing through an experienced partner. This facilitates seamless data flow into existing health system records, enhancing clinical workflow efficiency and data management for practices.

Details

Category Cardiology AI, Wearables & Remote Monitoring (RPM)
Pricing Available via subscription, fee-for-service, or split-bill models.
  • Subscription: fixed monthly fee per device, clinic bills globally; Fee for Service: per-test fee, aligns costs with volume, clinic bills globally; Split Bill: clinic bills professional fee, VivaQuant bills technical fee
DeploymentWearable device for patients, cloud-based platform for data management and review.
Compliance
BAA AvailableUnknown AI-estimated
HIPAA CompliantUnknown AI-estimated
FDA Status 1 AI-estimated

The RX-1 Rhythm Express Remote Cardiac Monitoring System received FDA 510(k) clearance (K200833) on September 2, 2020. It is intended for patients greater than 10 kg who have or are at risk of cardiac disease and require continuous cardiac monitoring.
Integrations
EHR Not specified
Specialties Cardiology

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Press & Coverage

FDA
FDA 510(k) clearance for medical device RX-1 Rhythm Express Remote Cardiac Monitoring System
The RX-1 Rhythm Express Remote Cardiac Monitoring System received FDA 510(k) clearance as a Class II medical device in February 2019.
2019-02
FDA
RX-1 Rhythm Express Remote Cardiac Monitoring System 510(k) Premarket Notification K200833
A 510(k) premarket notification for the RX-1 Rhythm Express Remote Cardiac Monitoring System was reviewed by the FDA in September 2020, detailing its function as a continuous ECG monitor for arrhythmia detection.
2020-09
unknown
Mobile Cardiac Telemetry Systems Market Size, Forecast to 2034
The RX-1 Rhythm Express Remote Cardiac Monitoring System is mentioned in a market report on mobile cardiac telemetry systems, highlighting its FDA approval and continuous cardiac activity monitoring capabilities.
2026-06
Physician AI Tools
RX-1 Rhythm Express Remote Cardiac Monitoring System vs VX1+
This comparison highlights the RX-1 Rhythm Express as an FDA-cleared, patch-style wearable for continuous ECG monitoring with AI-enabled arrhythmia detection and noise suppression.
unknown
Physician AI Tools
RX-1 Rhythm Express Remote Cardiac Monitoring System vs Tempus ECG-Low EF
A comparison article positions the RX-1 Rhythm Express as a continuous ECG monitoring system for arrhythmia detection in an ambulatory setting, ideal for Mobile Cardiac Telemetry, Event Recording, or Holter monitoring.
unknown
Slowtwitch Forum
ECG from wearables - Slowtwitch Forum
The RX-1 Rhythm Express Remote Cardiac Monitoring System is mentioned in a forum discussion about ECG from wearables, noting its ability to capture two-channel ECGs and detect arrhythmias.
2023-08
Physician AI Tools
HealthCCSng vs RX-1 Rhythm Express Remote Cardiac Monitoring System
This comparison highlights the RX-1 Rhythm Express's proprietary MDSPu2122 technology for superior noise suppression and AI-enabled arrhythmia detection in a wearable device.
unknown
FDA
510(k) Premarket Notification - FDA (K241179)
A July 2025 FDA document references the RX-1 Rhythm Express Remote Cardiac Monitoring System (K200833) as a predicate device for the RX-1 mini Rhythm Express Remote Cardiac Monitoring System (K241179).
2025-07

Videos

Product demos, reviews, and walkthroughs for RX-1 Rhythm Express Remote Cardiac Monitoring System.

View all on YouTube

Frequently Asked Questions

The RX-1's AI utilizes embedded algorithms to detect arrhythmias and compress ECG data, providing automated interpretations. While it aims for diagnostic accuracy comparable to or exceeding traditional Holter monitors, clinical judgment and experience are crucial for interpreting the data, as the system does not provide definitive diagnostic statements.
The RX-1 mini is FDA-cleared, meeting necessary regulatory requirements for cardiac monitoring devices. The system uses a secure, private cellular connection for data transmission to a monitoring center, where clinicians review the information.
The RX-1's embedded algorithm processes ECG data to detect arrhythmias, but the system itself does not provide interpretive or diagnostic statements. While AI in general can have limitations with rare arrhythmias or diverse populations, the RX-1 emphasizes that clinical judgment is used to check and interpret the data, and it's not intended as a sole diagnostic tool.
The RX-1 mini differentiates itself by utilizing advanced algorithms and high-fidelity signal processing for diagnostic accuracy that meets or exceeds traditional Holter monitors, with enhanced P-wave visibility. It offers continuous ECG monitoring in mobile cardiac telemetry, event recorder, and wireless Holter modes.
Specific pricing for the RX-1 Rhythm Express system is not publicly detailed, but remote cardiac monitoring systems generally operate on models like per-patient-per-month subscriptions or flat fees. Reimbursement for remote cardiac monitoring services typically falls under existing CPT codes, with recent Medicare updates increasing reimbursement rates for some codes.
The RX-1 system is designed to continuously monitor ECG and automatically deliver recorded cardiac activity to a server for review by a medical professional. While specific integration details are not provided, the company offers 24/7 support for assistance with the device.
The RX-1's embedded algorithm processes ECG to detect arrhythmias, and the system communicates events to a monitoring center for review by clinicians. While AI generally aims to reduce false positives and alert fatigue, the RX-1 system itself does not sound alarms and relies on human review of the transmitted data.

Compare RX-1 Rhythm Express Remote Cardiac Monitoring System

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RX-1 Rhythm Express Remote Cardiac Monitoring System vs syngo Dynamics
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Tool A, RX-1 Rhythm Express, focuses on remote, continuous ECG monitoring for arrhythmia detection using a wearable patch. In contrast, Tool B, syngo Dynamics, is a comprehensive enterprise…
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RX-1 Rhythm Express Remote Cardiac Monitoring System vs EchoNext
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These two tools are adjacent in their comparability, both focusing on cardiac diagnostics but with distinct approaches. RX-1 Rhythm Express is a wearable device for continuous ECG monitoring…
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While both are FDA-cleared remote patient monitoring tools utilizing AI and cloud platforms, their primary focus areas differ significantly. The RX-1 Rhythm Express is specifically designed for continuous,…
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Suggest an Edit → | Last Verified: 2026-04-19 | First Added: 2026-04-19
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