"Hypotension Probability Indicator" in TAVI/MitraClip for Hypotension Management

NCT ID: NCT06347211

Last Updated: 2025-01-14

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

100 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-01-10

Study Completion Date

2024-12-10

Brief Summary

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The study will investigate whether the use of Goal Directed Hemodynamic Therapy implemented with the HPI algorithm using a treatment algorithm will reduce the incidence of hypotension and improve treatment of hypotension.

Detailed Description

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The perioperative period is characterized by hemodynamic instability. Intraoperative hypotension (IOH) can be caused by anesthesia drugs, surgical manipulations, hypovolemia or inhibition of the sympathetic nervous system and impairment of baroreflex regulatory mechanisms. In a retrospective analysis performed at the Cleveland Clinic, the risk for acute kidney injury(AKI) and myocardial injury (MI) increased when mean arterial pressure (MAP) was less than 55 mmHg. Further, even short durations of intraoperative hypotension were associated with AKI and MI. Salmasi and coll analyzed whether associations based on relative thresholds were stronger than those based on absolute thresholds regarding blood pressure. They found that there were no clinically important interactions between preoperative blood pressures and the relationship between hypotension and MI or AKI at intraoperative mean arterial blood pressures less than 65 mmHg. Absolute and relative thresholds had comparable ability to discriminate patients with MI or AKI from those without it. The authors concluded that anesthetic management can thus be based on intraoperative pressures without regard to preoperative pressure. In a retrospective cohort study Sun and coll conclude that an increased risk of postoperative stage I AKI occurs when intraoperative MAP was less than 60 mmHg for more than 20 min and less than 55 mmHg for more than 10 min.

Hence it is fundamental for the management of any hemodynamically unstable patient the rapid assessment of the factors that determine the cardiovascular collapse, followed by prompt treatment and, ultimately, reversal of the responsible process. Recently a Hypotension Probability Indicator (HPI) algorithm has been developed from Edwards Lifesciences using continuous invasively-measured arterial waveforms to predict hypotension with high accuracy minutes before blood pressure actually decreases. The HPI algorithm can be integrated with a goal-directed hemodynamic treatment (GDHT) to achieve hemodynamic optimization by increasing global blood flow and prevent organ failure. The HPI index, combined with a hypotension management protocol, has shown efficacy in reducing hypotension during surgical procedures. Its effectiveness has been demonstrated in ICU patients with Covid-19. Studies in cardiac surgery cases have been conducted, with ongoing research in cardiac surgery patients (HYPE2 and HPI Care Trial). Maintaining stable arterial pressure and avoiding intraoperative hypotension are crucial during TAVI or MitraClip procedures, achieved through monitored anesthesia care (MAC) or general anesthesia. Based on recent publications and Pinsky's work, a hypotension management protocol integrating GDHT with the HPI algorithm has been developed for TAVI or MitraClip patients.

Conditions

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Hypotension During Surgery Prevention of Hypotension

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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HPI + GDHT treatment

HPI + GDHT using Acumen IQ and Hemosphere monitor with HPI algorithm incorporated following our protocol for hemodynamic treatment (fluids,vasopressors and inotropes).

Group Type ACTIVE_COMPARATOR

Acumen IQ sensor with Hemosphere monitor incorporating the HPI algorithm

Intervention Type DEVICE

Hemosphere monitoring and requires the use of a AcumenIQ sensor connected to an arterial line (Edwards Lifesciences Corp., Irvine, CA, USA). The sensor has a splitter which enables the splitting of the arterial blood pressure signal to facilitate a blood pressure signal on both the anesthesia machine monitor (standard care) and the HemoSphere monitor (study).

In the intervention arm we asked the anesthesiologist and anesthesia nurse to use the study treatment flowchart. If the HPI alarm goes off, which entails both a sound and a flickering light, we ask the anesthesiologist to act upon this alarm immediately. Use of the study treatment flowchart ensures that the anesthesiologist has to think about the underlying cause. The HemoSphere with HPI software has a second screen with variables that provide information about the underlying cause of the predicted hypotension.

Control

Conventional treatment with invasive blood pressure monitoring. Administration of fluids and/or vasopressors are guided by standard hemodynamic parameters at the discretion of the attending physician.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Acumen IQ sensor with Hemosphere monitor incorporating the HPI algorithm

Hemosphere monitoring and requires the use of a AcumenIQ sensor connected to an arterial line (Edwards Lifesciences Corp., Irvine, CA, USA). The sensor has a splitter which enables the splitting of the arterial blood pressure signal to facilitate a blood pressure signal on both the anesthesia machine monitor (standard care) and the HemoSphere monitor (study).

In the intervention arm we asked the anesthesiologist and anesthesia nurse to use the study treatment flowchart. If the HPI alarm goes off, which entails both a sound and a flickering light, we ask the anesthesiologist to act upon this alarm immediately. Use of the study treatment flowchart ensures that the anesthesiologist has to think about the underlying cause. The HemoSphere with HPI software has a second screen with variables that provide information about the underlying cause of the predicted hypotension.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Age \>18 years
* Will be monitored intraoperatively for \>1 hour or will receive general anesthesia for \>1 hour
* Will undergo intraoperative monitoring with invasive arterial pressure measurement
* Mean arterial pressure (MAP) target will be ≥ 65 mmHg intraoperatively
* Will sign written informed consent preoperatively
* Will undergo TAVI or Mitral Clip under general anesthesia or monitored anesthesia care (MAC) and sedation
* American Society of Anesthesiologists (ASA) Physical Status ≤ 4

Exclusion Criteria

* Target for MAP different from 65 mmHg
* Severe hypotension preoperatively MAP \<65 mmHg
* Severe heart failure (e.g., Left Ventricular Ejection Fraction\<20%)
* Patients needing or will need mechanical circulatory support postoperatively (e.g., intra-aortic pump)
* Urgent surgery
* Patients with severe pulmonary hypertension (preexisting or detected intraoperatively)
* Patients with hemodynamic instability requiring extracorporeal circulation support
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Attikon Hospital

OTHER

Sponsor Role lead

Responsible Party

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Milionis Orestis

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Tatiana Sidiropoulou, MD,PhD

Role: PRINCIPAL_INVESTIGATOR

Attikon Hospital

Locations

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Attikon Hospital

Athens, Athens, Greece

Site Status

Countries

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Greece

References

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Walsh M, Devereaux PJ, Garg AX, Kurz A, Turan A, Rodseth RN, Cywinski J, Thabane L, Sessler DI. Relationship between intraoperative mean arterial pressure and clinical outcomes after noncardiac surgery: toward an empirical definition of hypotension. Anesthesiology. 2013 Sep;119(3):507-15. doi: 10.1097/ALN.0b013e3182a10e26.

Reference Type BACKGROUND
PMID: 23835589 (View on PubMed)

Salmasi V, Maheshwari K, Yang D, Mascha EJ, Singh A, Sessler DI, Kurz A. Relationship between Intraoperative Hypotension, Defined by Either Reduction from Baseline or Absolute Thresholds, and Acute Kidney and Myocardial Injury after Noncardiac Surgery: A Retrospective Cohort Analysis. Anesthesiology. 2017 Jan;126(1):47-65. doi: 10.1097/ALN.0000000000001432.

Reference Type BACKGROUND
PMID: 27792044 (View on PubMed)

Sun LY, Wijeysundera DN, Tait GA, Beattie WS. Association of intraoperative hypotension with acute kidney injury after elective noncardiac surgery. Anesthesiology. 2015 Sep;123(3):515-23. doi: 10.1097/ALN.0000000000000765.

Reference Type BACKGROUND
PMID: 26181335 (View on PubMed)

Hatib F, Jian Z, Buddi S, Lee C, Settels J, Sibert K, Rinehart J, Cannesson M. Machine-learning Algorithm to Predict Hypotension Based on High-fidelity Arterial Pressure Waveform Analysis. Anesthesiology. 2018 Oct;129(4):663-674. doi: 10.1097/ALN.0000000000002300.

Reference Type BACKGROUND
PMID: 29894315 (View on PubMed)

Davies SJ, Vistisen ST, Jian Z, Hatib F, Scheeren TWL. Ability of an Arterial Waveform Analysis-Derived Hypotension Prediction Index to Predict Future Hypotensive Events in Surgical Patients. Anesth Analg. 2020 Feb;130(2):352-359. doi: 10.1213/ANE.0000000000004121.

Reference Type BACKGROUND
PMID: 30896602 (View on PubMed)

Wijnberge M, Geerts BF, Hol L, Lemmers N, Mulder MP, Berge P, Schenk J, Terwindt LE, Hollmann MW, Vlaar AP, Veelo DP. Effect of a Machine Learning-Derived Early Warning System for Intraoperative Hypotension vs Standard Care on Depth and Duration of Intraoperative Hypotension During Elective Noncardiac Surgery: The HYPE Randomized Clinical Trial. JAMA. 2020 Mar 17;323(11):1052-1060. doi: 10.1001/jama.2020.0592.

Reference Type BACKGROUND
PMID: 32065827 (View on PubMed)

Schneck E, Schulte D, Habig L, Ruhrmann S, Edinger F, Markmann M, Habicher M, Rickert M, Koch C, Sander M. Hypotension Prediction Index based protocolized haemodynamic management reduces the incidence and duration of intraoperative hypotension in primary total hip arthroplasty: a single centre feasibility randomised blinded prospective interventional trial. J Clin Monit Comput. 2020 Dec;34(6):1149-1158. doi: 10.1007/s10877-019-00433-6. Epub 2019 Nov 29.

Reference Type BACKGROUND
PMID: 31784852 (View on PubMed)

Tsoumpa M, Kyttari A, Matiatou S, Tzoufi M, Griva P, Pikoulis E, Riga M, Matsota P, Sidiropoulou T. The Use of the Hypotension Prediction Index Integrated in an Algorithm of Goal Directed Hemodynamic Treatment during Moderate and High-Risk Surgery. J Clin Med. 2021 Dec 15;10(24):5884. doi: 10.3390/jcm10245884.

Reference Type BACKGROUND
PMID: 34945177 (View on PubMed)

Murabito P, Astuto M, Sanfilippo F, La Via L, Vasile F, Basile F, Cappellani A, Longhitano L, Distefano A, Li Volti G. Proactive Management of Intraoperative Hypotension Reduces Biomarkers of Organ Injury and Oxidative Stress during Elective Non-Cardiac Surgery: A Pilot Randomized Controlled Trial. J Clin Med. 2022 Jan 13;11(2):392. doi: 10.3390/jcm11020392.

Reference Type BACKGROUND
PMID: 35054083 (View on PubMed)

Maheshwari K, Shimada T, Yang D, Khanna S, Cywinski JB, Irefin SA, Ayad S, Turan A, Ruetzler K, Qiu Y, Saha P, Mascha EJ, Sessler DI. Hypotension Prediction Index for Prevention of Hypotension during Moderate- to High-risk Noncardiac Surgery. Anesthesiology. 2020 Dec 1;133(6):1214-1222. doi: 10.1097/ALN.0000000000003557.

Reference Type BACKGROUND
PMID: 32960954 (View on PubMed)

van der Ven WH, Terwindt LE, Risvanoglu N, Ie ELK, Wijnberge M, Veelo DP, Geerts BF, Vlaar APJ, van der Ster BJP. Performance of a machine-learning algorithm to predict hypotension in mechanically ventilated patients with COVID-19 admitted to the intensive care unit: a cohort study. J Clin Monit Comput. 2022 Oct;36(5):1397-1405. doi: 10.1007/s10877-021-00778-x. Epub 2021 Nov 13.

Reference Type BACKGROUND
PMID: 34775533 (View on PubMed)

Shin B, Maler SA, Reddy K, Fleming NW. Use of the Hypotension Prediction Index During Cardiac Surgery. J Cardiothorac Vasc Anesth. 2021 Jun;35(6):1769-1775. doi: 10.1053/j.jvca.2020.12.025. Epub 2020 Dec 21.

Reference Type BACKGROUND
PMID: 33446404 (View on PubMed)

Pinsky, M.R. (2005). Protocolized Cardiovascular Management Based on Ventricular-arterial Coupling. In: Pinsky, M.R., Payen, D. (eds) Functional Hemodynamic Monitoring. Update in Intensive Care and Emergency Medicine, vol 42. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-26900-2_28

Reference Type BACKGROUND

Luo D, Wan X, Liu J, Tong T. Optimally estimating the sample mean from the sample size, median, mid-range, and/or mid-quartile range. Stat Methods Med Res. 2018 Jun;27(6):1785-1805. doi: 10.1177/0962280216669183. Epub 2016 Sep 27.

Reference Type BACKGROUND
PMID: 27683581 (View on PubMed)

Wan X, Wang W, Liu J, Tong T. Estimating the sample mean and standard deviation from the sample size, median, range and/or interquartile range. BMC Med Res Methodol. 2014 Dec 19;14:135. doi: 10.1186/1471-2288-14-135.

Reference Type BACKGROUND
PMID: 25524443 (View on PubMed)

Other Identifiers

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Attikon Hospital

Identifier Type: -

Identifier Source: org_study_id

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