Adequacy of Anesthesia solution

Our Adequacy of Anesthesia (AoA) solution consists of powerful parameters, devices, consumables and a digital analytics application that may help you in your goals to improve outcomes, save costs and improve workflow efficiency.

Clinical excellence

Unique clinical measurements support tailored anaesthesia delivery

Decision support

Tools to help optimise workflow and anaesthesia delivery

Optimise performance

Analytics to help support clinical, cost and sustainability goals

Anaesthesia delivery is a critical part of healthcare delivery

AoA consists of various unique parameters that provide continuous measurements to help you assess a patient’s response to inhaled and intravenous hypnotics, opioids, and other analgesic drugs as well as NMBAs during general anaesthesia.

Entropy monitoring

Entropy measures the activity of the brain and has been shown to reflect the different phases of anaesthesia. The use of Entropy in adults has been found to reduce the use of certain hypnotic drugs, therefore, helping anaesthesiologists to tailor anaesthetic drugs for each patient, helping avoid unnecessarily deep states of hypnosis, including burst suppression that has been associated with increased risk of delirium.1

With Entropy monitoring, it is possible to ensure faster emergence and recovery in the operating room. It is a tool for optimising the perioperative process and ensuring efficient patient flow.


Neuromuscular Transmission (NMT) monitoring

NMT is the transfer of an impulse between a nerve and a muscle in the neuromuscular junction. NMT can be blocked by neuromuscular blocking agents—drugs which cause transient muscle relaxation and prevent the patient from moving and breathing spontaneously.

Post-operative residual curarization (PORC) incidence in PACU is estimated to be up to 45% after a single shot muscle relaxation.2 Considering that about 230 million patients undergo a major surgery each year, about 100 patients per minute would suffer from discomfort, reduced ventilation capacity, double vision and a 4- to 5-times increased aspiration risk. Such residual effects have clinical consequences that can prolong hospitalization, particularly in vulnerable populations such as obese patients.

Surgical Pleth Index (SPI) monitoring

SPI is our proprietary parameter that reacts to haemodynamic responses caused by surgical stimuli and analgesic medications.3 By observing the SPI value and trend, clinicians can monitor real time adult patients’ responses to surgical stimuli and help optimise analgesia medications, saving valuable time and helping you optimise analgesia delivery.

Our algorithm uses two components of the photoplethysmographic signal when measured on GE Healthcare’s TruSignal™ SpO2 finger sensors only. Published literature suggests that SPI-guided anaesthesia may result in lower remifentanil consumption, more stable haemodynamics and lower incidence of unwanted events.4,5

Decision support tools to help optimise workflow and patient care

GE Healthcare’s CARESCAPE™ patient monitors provide the functionalities you need to help you seamlessly and easily deliver optimal anaesthesia and patient care.


BalanceView provides clear visualisation of the patient’s response to changes in anaesthesia conditions, which may help the anaesthesiologist to adjust the analgesic levels and optimise patient consciousness.

NMT Hookup Advisor™

NMT Hookup Advisor provides quantitative, automatic measurements of muscle response to stimulus and features enhanced workflow steps and tools to help align relaxation care flow.

Resources to help drive clinical excellence

Clinical View

Clinical View is a free resource for medical professionals intended to provide educational materials and clinical information that advances best practices for monitoring across the continuum of care.

Share your critical care expertise

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  1. 1. Daiello LA, et al., Postoperative Delirium and Postoperative Cognitive Dysfunction: Overlap and Divergence. Anesthesiology 131(3), 477-491 (Sep 2019).
  2. 2. Actual time may vary slightly due to hospital network and processing times.
  3. 3. SPI is not FDA cleared and is not available in the U.S.
  4. 4. Chen et al. Comparison of Surgical Stress Index-guided analgesia with standard clinical practice during routine general anaesthesia Anaesthesiology, V 112, No.5 2010.
  5. 5. Bergmann I. et al. Surgical pleth index-guided remifentanil administration reduces remifentanil and propofol consumption and shortens recovery times in outpatient anaesthesia. BJA 110 (4): 622-8 (2013).

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