Cardiac Pre-Screening Wing
Not a diagnosis. Does not replace clinicians. Escalates on red flags.
The Problem
Low-risk cardiac symptoms lead to excessive ECGs, echoes, referrals.
When This Service Applies
Palpitations
Intermittent palpitations without syncope or chest pain
Chest Discomfort
Atypical chest discomfort, normal vitals, no radiation
Fatigue
Generalized fatigue with normal exam findings
Input Sources
Wearable ECG
Continuous rhythm monitoring
Digital Stethoscope
Heart sound analysis
Vitals
HR, BP, SpO₂ trends
Symptoms
Structured questionnaire
How Signals Are Processed
Motion artifacts, electrical interference, and poor contact signals are automatically filtered out.
Each signal receives a confidence score. Low-quality inputs trigger abstention.
Engine Output
No immediate test required
Continue monitoring. Escalate if symptoms worsen or new red flags appear.
Test Minimization Impact
Reduction Metrics
Cost Savings
Clinical Workflow Integration
Patient Presents
Symptoms reported, vitals captured
Input Collection
Wearable data, audio, vitals synced
Signal Validation
Quality checks, noise filtering
Risk Assessment
Engine processes, generates risk band
Recommendation
Rule-out, minimal panel, or escalate
Clinician Review
Override available, decision logged
Safety Triggers & Escalation
- ⚠Chest pain with radiation
- ⚠Syncope or near-syncope
- ⚠Severe dyspnoea
- ⚠Abnormal vitals (HR <40 or >150)
- ⚠Hemodynamic instability
- →Age >65 with new symptoms
- →Family history of sudden cardiac death
- →Known cardiac disease
- →Multiple risk factors
Real-World Applications
Primary Care Triage
Screen low-risk chest discomfort before ordering ECGs
Emergency Department
Rapid risk stratification for non-urgent cardiac complaints
Telemedicine
Remote cardiac assessment using wearable data
Pre-Operative Screening
Cardiac risk assessment before non-cardiac surgery
Technical Specifications
- • Sampling rate: 250Hz
- • Noise floor: -40dB
- • Frequency range: 0.5-40Hz
- • Artifact rejection: Auto
- • Arrhythmia classifier: v2.1.3
- • Murmur detector: v1.8.2
- • Risk calculator: v3.0.1
- • Confidence threshold: 75%
- • Processing time: <2s
- • Accuracy: 87% (validated)
- • Sensitivity: 92%
- • Specificity: 84%
Integration & Deployment
API Endpoints
Deployment Options
How This Service Fits the Engine
This service operates within Live Corp's Test-Minimization Engine and follows the same abstain-when-uncertain and escalation rules.