Acumen Hypotension Prediction Index EV1000 Clinical Platform
Overview
The Acumen Hypotension Prediction Index (HPI) software is a pioneering technology developed by Edwards Lifesciences, designed to detect and help clinicians manage hemodynamic instability and predict the likelihood of hypotensive events. It operates on the HemoSphere Advanced Monitoring Platform, and previously on the EV1000 Clinical Platform. The software utilizes a machine-learning based algorithm that analyzes over 2.6 million features from a single arterial pressure waveform, comparing them against 133 million different waveforms to identify factors that predict hypotension up to 15 minutes before an event.
Key elements of the Acumen HPI software include the HPI Parameter, which displays a value from 0 to 100 indicating the likelihood of a hypotensive event; Smart Alerts and a Smart Trend screen that notify clinicians of potential trends toward hypotension; and a Relationship View screen. This Relationship View provides insights into the root cause of hypotension by visually arranging hemodynamic parameters related to preload, afterload, and contractility.
The Acumen HPI software aims to reduce the incidence and duration of intraoperative hypotension (IOH), which is strongly associated with risks of myocardial injury, acute kidney injury, and mortality. Studies have shown that using Acumen HPI software can significantly reduce the duration of IOH, with one study demonstrating a 57% reduction.
The software can be unlocked by either the minimally-invasive Acumen IQ sensor, which connects to an existing radial arterial line, or the noninvasive Acumen IQ cuff, providing continuous blood pressure and advanced hemodynamic parameters.
Reviewed by Pouyan Golshani, MD — Interventional Radiologist
Key Features
- HPI Parameter (0-100 likelihood score)
- Smart Alerts for trending hypotension
- Smart Trend screen
- Relationship View screen (preload, afterload, contractility insights)
- Machine learning-based algorithm for prediction
- Predicts hypotension up to 15 minutes in advance
- Continuous hemodynamic monitoring
- Non-invasive (Acumen IQ cuff) and minimally-invasive (Acumen IQ sensor) options
- Reduces duration of intraoperative hypotension
- Acumen Analytics software for retrospective data analysis
Use Cases
- Prevention of intraoperative hypotension (IOH)
- Management of hemodynamic instability in surgical patients
- Guidance for goal-directed hemodynamic therapy (GDHT)
- Monitoring in non-cardiac surgery
- Monitoring in cardiac surgery
- Patient monitoring in intensive care settings
What Physicians Need to Know
The Acumen HPI software is an adjunctive decision support tool intended to provide clinicians with physiological insight into a patient's likelihood of future hypotensive events and their potential causes (preload, afterload, contractility). It is crucial to review the patient's complete hemodynamic state and other clinical information before initiating any therapeutic decisions, as the HPI parameter should not be used exclusively to direct therapy.
The Acumen Hypotension Prediction Index software is integrated into the Edwards Lifesciences EV1000 Clinical Platform and is compatible with various Edwards advanced hemodynamic monitoring solutions, including the FloTrac IQ sensor, Acumen IQ sensor (for invasive arterial lines), and the non-invasive Acumen IQ cuff. It is also compatible with the HemoSphere advanced monitoring platform.
Details
| Category | Cardiology AI, Surgical AI, Triage & ER/ICU AI |
| Pricing | Contact-for-pricing |
| Deployment | Integrated with Edwards Lifesciences HemoSphere Advanced Monitoring Platform (and previously EV1000 Clinical Platform) via dedicated sensors (Acumen IQ cuff or sensor). |
| Compliance | |
| BAA Available | Unknown AI-estimated |
| HIPAA Compliant | Yes AI-estimated |
| FDA Status |
1 AI-estimated The Acumen Hypotension Prediction Index (HPI) software received a De Novo request from the U.S. FDA in March 2018, designated as an adjunctive predictive cardiovascular indicator. It also received 510(k) clearance (K183646) on May 21, 2019, for use with the EV1000 Clinical Platform and HemoSphere Advanced Monitoring Platform. Additionally, the Acumen HPI software with the noninvasive Acumen IQ finger cuff received U.S. FDA 510(k) clearance in June 2021. |
| Integrations | |
| EHR | Not specified |
| Specialties | Anesthesiology, Critical Care, Emergency Medicine |
What the Web Says
The Acumen Hypotension Prediction Index (HPI) software, used with the EV1000 Clinical Platform, is a machine learning-derived tool designed to predict and help clinicians manage intraoperative hypotension (IOH) in surgical patients. It analyzes arterial pressure waveforms to provide a likelihood of a hypotensive event (MAP < 65 mmHg for at least one minute) and offers insights into the potential root causes, such as preload, afterload, and contractility issues. Studies have shown that its use can significantly reduce the incidence, duration, and severity of IOH, potentially leading to improved patient outcomes.
Overall: PositiveStrengths
- Significantly reduces the incidence, duration, and severity of intraoperative hypotension.
- Provides early warning of impending hypotensive events, allowing for proactive intervention.
- Offers insights into the underlying physiological causes of hypotension (preload, afterload, contractility).
- Demonstrates superior predictive abilities compared to traditional hemodynamic parameters.
- Can improve compliance with goal-directed hemodynamic therapy algorithms.
- Compatible with Edwards' advanced hemodynamic monitoring solutions, including the EV1000 and HemoSphere platforms.
Limitations
- Requires an arterial line for monitoring in many cases, which is an invasive procedure.
- The HPI parameter itself should not be the sole basis for therapeutic decisions; clinicians must consider underlying physiology.
- Some Reddit users express skepticism or find the alerts can be overwhelming if not properly understood in the context of overall patient hemodynamics.
- Effectiveness is often shown in conjunction with a treatment protocol, not just the software alone.
- Limited information from independent tech reviewers, G2, or Capterra was found in the search results.
- Specific patient populations (e.g., those with significant cardiac valvular disease, atrial fibrillation, or on multiple vasoactive agents) may be excluded from studies.
Based on reviews from: Edwards Lifesciences, ClinicalTrials.gov, PubMed Central, ResearchGate, HT Medical Devices, Reddit, BD Learning Academy, PR Newswire, YouTube
Last updated: 2026-07-17
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