Acumen IQ sensor unlocks the ability to predict hypotensive events* and provides insight into the root cause of hypotension (preload, afterload, and /or contractility) with Acumen Hypotension Prediction Index (HPI) software. This next generation sensor is built on the foundation of the Edwards Lifesciences FloTrac sensor.

Unlocks Acumen
HPI software

Acumen IQ sensor unlocks this first-of-its-kind technology designed to help predict future hypotensive events*.

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Attaches to any
radial line

Acumen IQ sensor attaches to any existing radial arterial line and automatically calculates key parameters every 20 seconds.

Enables individualized
patient care

Acumen IQ sensor is part of an advanced hemodynamic family of solutions that help guide individualized treatment decisions.

A hypotensive event is defined as MAP <65 mmHg for a duration of at least one minute.

Features of Acumen IQ sensor

Acumen IQ sensor is available on the HemoSphere advanced monitoring platform. This sensor unlocks Acumen HPI software and enables you to proactively optimize perfusion using continuous blood pressure and advanced hemodynamic parameters. This first-of-its-kind predictive decision support software detects the likelihood of a patient trending towards a hypotensive event* before the event occurs, and provides you with insights to understand the root cause and inform a potential course of action for your patient.

Acumen IQ sensor attaches to any existing radial arterial line and automatically calculates key parameters every 20 seconds, reflecting rapid physiologic changes in surgical and nonsurgical patients in intensive care settings.

Acumen IQ sensor

Advanced hemodynamic parameters

  • Hypotension Prediction Index (HPI)
  • Contractility: Systolic Slope (dP/dt)
  • Afterload: Dynamic arterial elastance (Eadyn)
  • Stroke Volume (SV)
  • Stroke Volume Variation (SVV)
  • Mean Arterial Pressure (MAP)
  • Cardiac Index (CI)
  • Systemic Vascular Resistance (SVR)
  • Pulse Pressure Variation (PPV)
A hypotensive event is defined as MAP <65 mmHg for a duration of at least one minute.

Clinical application

Manage perfusion

Maintaining necessary peripheral perfusion requires adequate peripheral blood pressure and adequate cardiac output. Acumen IQ sensor offers advanced hemodynamic parameters and continuous blood pressure to help you monitor perfusion, and access to the Acumen HPI software which provides you insight to determine the root cause of instability.

Acumen IQ sensor and Acumen HPI software

Risk of hypotension

Research findings have revealed strong association between intraoperative hypotension (IOH) and elevated risk of both acute kidney injury (AKI) and myocardial injury after noncardiac surgery (MINS).2,4,5

Acumen HPI software is effective in detecting hemodynamic instability and substantially reducing the amount of intraoperative hypotension when used in surgical patients who require intraoperative hemodynamic monitoring during noncardiac surgery.1

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IOH is common2,3

88% of patients continuously monitored with an arterial line still experienced hypotension, defined as MAP <65 mmHg, for at least 1 min.4
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IOH has elevated risks

Prolonged exposures below mean arterial pressure (MAP) thresholds of 65 mmHg are associated with increased risk of mortality, myocardial injury, and AKI after noncardiac surgery.2,5
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IOH can
be reduced

Acumen HPI software has demonstrated a reduction* in the duration of IOH by 57%.1
Single arm, multicenter, prospective-to-historical control where patients received arterial line monitoring.

Manage volume

Dynamic and flow-based parameters are more informative than conventional parameters in determining fluid responsiveness and may help guide individualized volume administration in patients and avoid excessive or insufficient administration.

Continuous access to pressure and flow parameters allows you to evaluate hemodynamic instability and guide appropriate treatment. When managing perfusion, stroke volume can be optimized using the patient’s own Frank-Starling curve.

Frank-Starling relationship between preload and stroke volume (SV)

Acumen intelligent decision support suite

The Acumen intelligent decision support suite offers predictive decision support for the management of a hypotension.

Acumen IQ sensor**
Acumen IQ sensor unlocks the Acumen HPI software and automatically updates advanced parameters every 20 seconds, reflecting rapid physiological changes in patients.
Acumen IQ sensor (minimally-invasive)
Surgical and nonsurgical patient use
Acumen HPI software
Acumen HPI software provides you with information regarding the likelihood of a patient trending towards a hypotensive event, and provides you with insights to understand the root cause and inform a potential course of action.
Learn more >>
Acumen HPI software
Acumen Analytics software
Acumen Analytics software enables you to retrospectively view and analyze hemodynamic parameters, including mean arterial pressure, providing you insights into the frequency, duration and prevalence of intraoperative hypotension in your practice.
Learn more >>
Acumen Analytics software

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With a long-term commitment to improving the quality of care for surgical and critical care patients through education, Edwards clinical education meets you no matter where you are in the learning process — with a continuum of resources and tools that continuously support you as you solve the clinical challenges facing you today, and in the future.

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  1. U.S. Food and Drug Administration. 2021. K203224 510k Summary, Acumen Hypotension Prediction Index, viewed August 24, 2021. cdrh_docs/pdf20/K203224.pdf.
  2. Salmasi, V., Maheshwari, K., Yang, G., Mascha, E.J., Singh, A., Sessler, D.I., & Kurz, A. (2017). Relationship between intraoperative hypotension, defined by either reduction from baseline or absolute thresholds, and acute kidney injury and myocardial injury. Anesthesiology, 126(1), 47-65.
  3. Bijker JB, et al. Incidence of intraoperative hypotension as a function of the chosen definition: literature definitions applied to a retrospective cohort using automated data collection. Anesthesiology. 2007;107(2):213-220.
  4. Shah, N., Mentz, G., Kheterpal, S. The incidence of intraoperative hypotension in moderate to high risk patients undergoing non-cardiac surgery: A retrospective multicenter observational analysis. Journal of Clinical Anesthesia. 2020;66:1-12
  5. Wesselink EM, et al. Intraoperative hypotension and the risk of postoperative adverse outcomes: a systematic review. Br J Anaesth. 2018;121(4):706-721. 42 studies’ noncardiac surgery patient number ranged from 40 to 152,445, with a median of 1,523 patients (inter-quartile range 261-17,739).

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