Hunting down Compensated Shock
Moving from Stability Monitoring to Efficiency Monitoring.
Aranga detects hemodynamic instability up to 4 hours before the crash.
Standard monitors see 120/80. We see the metabolic cost.
Aranga Biodynamics Ltd • 9 Patents Pending
The Helen Engine
Proprietary Hemodynamic Surveillance
A revolutionary approach to patient monitoring that reveals what traditional systems cannot see.
Effort, Not Output
We measure the effort of the heart, not just the output. Our technology reveals how hard the cardiovascular system is working to maintain stability.
4+ Hour Lead Time
Detect deterioration trends up to 4 hours before traditional vital sign changes. Time to intervene, not react.
Intelligent Classification
Our proprietary analysis distinguishes dangerous states from safe compensatory responses. Not all high readings are equal.
Military Heritage
Defense-grade acoustic signal processing and target tracking adapted for clinical care. Proven technology for detecting subtle signals in noise.
Aranga vs Traditional Vitals: Detection Timeline
From Deep Sea to Deep Physiology
Military-grade signal processing, adapted for the most critical mission: saving lives.
Anti-Submarine Warfare
Passive Sonar Processing
The Challenge: Detect a quiet submarine hiding in ocean noise before it becomes a threat.
The Signal: Subtle changes in “acoustic signature” patterns that reveal position and intent.
The Method: Track faint signatures over time, correlate multiple sensors, detect before breach.
“Hunt the submarine before it fires.”
Hemodynamic Surveillance
Perfusion Cost Analysis
The Challenge: Detect compensated shock hiding behind normal vital signs before the patient crashes.
The Signal: Subtle changes in “metabolic cost” that reveal physiological strain.
The Method: Track efficiency patterns over time, correlate multiple vitals, detect before crash.
“Hunt the instability before it kills.”
We treat the patient like a “Quiet Submarine”—detecting the “acoustic signature” (Metabolic Cost) before they emit an active signal (Hypotension).
The same algorithms that protect naval fleets now protect your patients.
A Three-Layer Defense System
Protected by nine pending patents, Aranga is the only hemodynamic system that integrates metabolic physics, deterministic governance, and cultural safety constraints.
The Physics Engine
Standard monitors measure status (Blood Pressure, Heart Rate, Respiratory Rate etc). Aranga measures effort. Our Perfusion Cost Analysis™ quantifies the metabolic energy required to maintain stability—detecting the "Walking Wounded" before they crash.
The Governance Engine
Decision support systems must have strong governance guardrails. Safety requires "Hard Veto." Multiple inference models monitor the patient—if any single model detects a critical threat, it locks into RED ALERT. A stable heart rate can never mask a fatal blood pressure.
The Cultural Safety Layer
Medicine is not just biology—it is ethics, law, and geography. The External Constraint Interface allows health districts to inject specific protocols directly into the decision logic, ensuring care is equitable and culturally safe.
The Complete Cardiovascular Governance System
Aranga isn't just a shock monitor—it's a multi-disease safety net with the architectural breadth to manage the entire patient journey from admission to discharge.
Shock States
4-Hour Pre-AlertHypovolemic Shock
Hemorrhage & Dehydration
Detects rapid rise in metabolic cost as the body compensates to maintain pressure during blood or fluid loss.
Septic Shock
Distributive Failure
Arterial Stiffness Analysis distinguishes "Warm Shock" (vasodilation) from other shock types.
Cardiogenic Shock
Pump Failure
Detects when heart rate compensation is failing, triggering Hard Veto even when other vital signs appear stable.
Occult Shock
The Walking Wounded
Detects instability in patients with normal blood pressure who are silently burning through physiological reserves.
Signal Intelligence
5 Patents PendingChange-Point Detection
CUSUM Analysis
Detects slow sustained drift patterns before threshold breaches. A heart rate drifting 75→85→95 over 6 hours triggers detection even though no single value is alarming.
Trajectory Integration
Track-Before-Detect
Validates vital sign patterns against expected clinical trajectories. Accumulates "energy" along velocity vectors to detect momentum-based deterioration.
Syndrome Detection
Stealth Signatures
Detects syndrome patterns across multiple vitals simultaneously. Individual vitals may be borderline, but the combination reveals deterioration.
Coupling Assessment
Physiological Coherence
Monitors natural correlations between vital signs. Loss of coupling (decoherence) indicates autonomic failure before vital signs change.
Temporal Synchronization
Unified Reference Frame
Heart rate arrives every minute, lactate every 6 hours, vasopressor boluses unpredictably. Our proprietary system creates a unified temporal reference for precise event correlation.
Renal & Fluid Management
Zero False PositivesAcute Kidney Injury
False Alarm Prevention
Hemodynamic Decoupling correctly identifies patients as stable despite abnormal renal markers.
Fluid Overload
Pulmonary Edema Prevention
Vascular Stiffness Interlock VETOES fluid administration in volume-intolerant patients to prevent drowning the lungs.
Dialysis Optimization
Dry Weight Estimation
Uses perfusion curve inflection point to determine optimal dry weight during dialysis with precision.
Complex & Comorbid Scenarios
Edge Case CoverageOpioid Suppression
Sedation-Proof Surveillance
Detects deterioration even when heart rate and respiratory drive are chemically suppressed by pain medication.
Iatrogenic Prevention
Doctor-Caused Harm
Nash Consensus Governance prevents unsafe interventions like giving fluids to heart failure patients.
Cultural Constraints
Ethical Care Boundaries
Constraint Injection Interface loads religious and ethical protocols like bloodless medicine thresholds.
The Aranga Spectrum
The only system with the architectural breadth to manage the entire patient journey.
Sepsis
Renal Failure
Fluid Overload
Dialysis
Sedation
Remote Care
Aranga isn't just a monitor—it's a Safety Net for the entire hospital.
Stressed Across Three Global Datasets
We didn't just test this in a lab. We validated across distinct international datasets to prove scale, fidelity, and diversity.
MIMIC-IV
United States
Validated on the largest US critical care dataset to prove statistical significance.
VitalDB
Korea
Validated on surgical waveform data to prove the "Vascular Stiffness" physics.
MUSIC
Multi-center
Validated to ensure algorithms work across different demographics and hospital protocols.
Real World Performance
Retrospective analysis of 17,370 ED patients from MIMIC-IV validation dataset. These cases illustrate how Aranga would have provided earlier, more accurate clinical decision support.
Silent Pump Failure
Outcome: Patient had EF 25% on subsequent echo. Aranga detected cardiac pump inefficiency 3 hours before NZEWS threshold breach, while BP remained stable at 118/72. Earlier detection would have enabled faster cardiology consultation and treatment initiation.
Warm Shock Signature
Outcome: Blood cultures positive for E. coli. Aranga identified distributive shock pattern 5 hours before hypotension, which would have enabled earlier antibiotic administration.
Physics Veto
Outcome: Physics engine confirmed cardiac efficiency was maintained despite elevated HR. Alert would have been suppressed, avoiding unnecessary intervention and reducing alarm fatigue for clinical staff.
70% Phenotype Accuracy
Clinical Value: Even at 70% accuracy, phenotype classification would enable targeted initial workup. Clinicians could prioritize likely diagnoses while maintaining appropriate differential, potentially reducing time-to-treatment and unnecessary testing.
BNP Override
Integration Value: When lab results become available, Aranga incorporates biomarkers to refine phenotype classification. BNP elevation shifted confidence from distributive to cardiogenic, which would have redirected clinical workup appropriately.
The “Lag Time” Trap
A 78-year-old female presents with “general malaise” and poor oral intake. Triage vitals are deceptively reassuring.
Outcome: Because NZEWS was 0, the patient sat for 4 hours with inadequate renal perfusion. Aranga identified the Resistive Phenotype at minute zero. A simple liter of saline in the waiting room would have prevented the 5-day admission — early fluid resuscitation could have preserved kidney function.
Validation Summary
Results from retrospective analysis of MIMIC-IV emergency department cohort. Prospective validation studies in progress.
Safety for Every Phenotype
“Aranga” means to rise in te reo Māori. We built a system that works for everyone—not just the populations overrepresented in training data.
Vascular Diversity Calibration
Calibrated across diverse patient populations. Our Stiffness Interlock ensures accurate readings for patients with varying vascular profiles.
Rheumatic Heart Disease
Patients with RHD have different vascular characteristics. Aranga's physics engine adapts to these phenotypes rather than assuming Western baselines.
Indigenous Health Equity
Standard AI is biased toward Western datasets. Aranga is validated across diverse demographics to ensure equitable care for all populations.
Cultural Protocol Injection
The External Constraint Interface loads religious and ethical protocols—from bloodless medicine thresholds to cultural care boundaries.
Whether your patient is in a metro ICU or a remote rural clinic, Aranga delivers equitable, legally compliant, and culturally safe hemodynamic governance.
Validated on 40,000+ patients across 3 continents. Universal Physics. Universal Physiology.
Command Console
The Aranga Interface
Purpose-built for high-stakes clinical environments. Clear signals, zero noise.
Ready to Learn More?
Download our clinical whitepaper with the full technical specification, or request a retrospective audit of your patient data.
For engineers and clinical directors who want the p-values.