Holter ECG Analytics

AI analysis for 1- to 3-lead Holter recordings.

Cardiolyse analyses 1- to 3-channel Holter recordings beat by beat. It counts every beat, classifies rhythms and ectopic beats, flags tachycardia and bradycardia runs, measures intervals and scores signal quality — across the full recording.

Healthcare professional attaching colored electrodes to a man's bare chest connected to a portable heart monitor device clipped to his belt in a medical office.
3-lead Holter · every beat analysed
1–3 leads
Single- to 3-channel Holter recordings
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Rhythm and beat findings classified
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Intervals measured: P-wave, PR/PQ, QRS, QT
Per beat
Signal-quality and confidence scoring

Hours of signal in. A structured Holter read out.

Each 1- to 3-lead recording is processed from start to finish. Results come back as counts, findings, events and measurements that a qualified healthcare professional can review and confirm.

Beat detection
QRS detection
Total beat count across the full recording.
Beat detection
Normal sinus rhythm (NSR)
Baseline sinus rhythm identification.
1st-degree AV block
Prolonged AV conduction detection.
Premature atrial contraction (PAC)
Ectopic atrial beat detection.
Pause
Sinus pause detection.
Atrial fibrillation (AFib)
Irregular atrial rhythm detection.
Premature ventricular contraction (PVC)
Ectopic ventricular beat detection.
Tachy-brady pattern
Alternating tachycardia and bradycardia episodes.
Rate-based events
QRS detection
Total beat count across the full recording.
Bradycardia run
Bradycardia episode · rate below configured threshold
Heart rate summary
HR min / max / average
Summary heart rate statistics across the recording.
Interval analysis
P-wave duration
Atrial depolarisation duration.
PR / PQ interval
Atrioventricular conduction time.
QRS duration
Ventricular depolarisation duration.
QT interval
Ventricular depolarisation and repolarisation duration.
Signal quality
Artifact / noise detection
Identification of non-physiological signal segments.
Beat quality / signal quality score
Per-beat confidence scoring.

Every beat counted. Every run flagged.

Long recordings capture the full picture. The analysis walks the whole signal, labels each beat and marks the stretches that meet event criteria — while noisy segments are identified rather than counted as rhythm.

Graph showing heart rate trend and ECG signal with labeled examples of tachycardia, bradycardia, ectopic beats (PVC ventricular, PAC atrial), pause, and artifact/noise, with color-coded boxes explaining each condition and a schematic ECG lead II tracing illustrating these abnormalities.

From a Holter recording to a structured result.

Doctor holding a tablet displaying an ECG report with heart rate and measurements, showing detailed heart activity with red gridlines and interpretation notes on the screen.
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Record

The patient wears a 1- to 3-lead Holter recorder or ECG patch for the monitoring period your service defines.

Upload

Recordings reach Cardiolyse through the REST API, a direct device integration or an upload. Paper and PDF ECGs can be digitised first.

Analyse

Beats are detected and classified, rate-based events flagged, intervals measured and signal quality scored across the full recording.

Results

Findings return as structured data and a report, ready for review by a qualified healthcare professional in your own system.

Built for Holter services and device partners.

Designed to sit behind recorders, patches and monitoring services, so analysis happens in the background and results land where your team already works.

1–3 lead ECG
Single-, 2- and 3-channel Holter recordings
Ambulatory recorders and ECG patches
Proprietary vendor formats
Device-agnostic digital signal input
Structured Holter read
Beat count and beat classification
Rhythm findings and rate-based events
HR min / max / average and intervals
Artifact segments and per-beat quality score
JSON via REST API and PDF report
API-first
EU-hosted managed service
OEM and white-label options
Batch processing of recordings

For teams that analyse long ECG recordings at scale.

Holter and remote-monitoring providers
Give every recording a consistent first analysis, so reviewers start from counted beats, flagged events and measured intervals.
Recorder, patch and wearable makers
Add beat-level Holter analytics for 1- to 3-lead devices through one API, under your brand.
Clinical studies and research groups
Analyse ambulatory ECG data with the same criteria across every participant and site, with results as structured data.

Holter ECG analytics, answered.

Which Holter recordings can Cardiolyse analyse?

Holter ECG analytics is built for 1- to 3-lead recordings — single-channel patches and 2- or 3-channel Holter recorders. For 12-lead resting ECGs, see Resting ECG Analytics.

What does the analysis detect?

It counts beats (QRS detection) and identifies normal sinus rhythm, atrial fibrillation, 1st-degree AV block, premature ventricular and atrial contractions, tachy-brady patterns and sinus pauses. It also measures P-wave duration, PR/PQ, QRS and QT intervals and summarises heart rate.

How does it handle noise and poor signal?

Artifact and noise detection identifies non-physiological signal segments, and every beat receives a quality and confidence score, so unreliable stretches are visible instead of being counted as rhythm.

How are results delivered?

As structured JSON through the REST API and as a PDF report, so they can be shown in your own platform or monitoring service. Results support qualified healthcare professionals, who review and confirm the findings.

Can we test it on our own recordings?

Yes. Send us a small set of anonymised 1- to 3-lead recordings and we will walk you through the results. Contact us to set it up.