NCT05969886

Brief Summary

Post-induction hypotension (PIH) is a common occurrence during the period from induction of general anesthesia to initiation of incision. PIH has been identified as an independent risk factor for postoperative major complications. Identifying high-risk patients for PIH could potentially help prevent its occurrence. Several risk factors associated with PIH have been identified, including patient conditions and use of specific anesthetic agents. Ventricular-arterial coupling (VAC) is evaluated using the ratio Ea/Ees and represents the interaction between the left ventricle (LV) and the arterial system. It reflects how changes in LV contractility (Ees) and changes in arterial load (Ea) work together to maintain optimal LV performance. A study aims to investigate the relationship between preoperative Ea/Ees ratio and the incidence of PIH (defined as MAP \< 65 mmHg).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
405

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jul 2023

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 3, 2023

Completed
21 days until next milestone

First Submitted

Initial submission to the registry

July 24, 2023

Completed
8 days until next milestone

First Posted

Study publicly available on registry

August 1, 2023

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 20, 2024

Completed
20 days until next milestone

Study Completion

Last participant's last visit for all outcomes

December 10, 2024

Completed
Last Updated

December 30, 2024

Status Verified

December 1, 2024

Enrollment Period

1.4 years

First QC Date

July 24, 2023

Last Update Submit

December 26, 2024

Conditions

Keywords

Ventricular-Arterial Coupling (VAC)Ea/Ees ratioPost-induction hypotension (PIH)Risk factors for PIH

Outcome Measures

Primary Outcomes (1)

  • Prediction

    Investigate the predictive value of the Ea/Ees ratio (along with echocardiographic variables) on PIH.

    from induction of anesthesia to incision initiation

Secondary Outcomes (1)

  • Incidence

    from induction of anesthesia to incision initiation

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Patients with American Society of Anesthesiologists (ASA) physical status 1 - 4 who underwent elective surgery

You may qualify if:

  • Patients ≥ 18 years old.
  • Patients with ASA (American Society of Anesthesiologists) physical status 1 - 4.
  • Elective surgery.
  • Preoperative transthoracic echocardiography was performed within 48 hours before surgery. The values of Ees and Ea were determined by the method of Chen.
  • Patients consented to participate in the study.
  • Patients scheduled for surgery undergoing standard general anesthesia (protocol: see below) with endotracheal intubation.
  • Patients were hemodynamically stable until the preoperative period.

You may not qualify if:

  • Cardiac and obstetric surgery.
  • Allergy to any anesthetic drug.
  • Arrhythmia.
  • Severe valvular heart disease.
  • Severe pre-existing lung disease.
  • Mean pulmonary arterial pressure (PAPm ≥ 40 mmHg).
  • Anticipation of difficult airway management.
  • Hypotension occurs during the induction of anesthesia due to suspected anaphylaxis.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Medical Centre Ho Chi Minh

Ho Chi Minh City, Vietnam

Location

Related Publications (13)

  • Yoshimura M, Shiramoto H, Koga M, Morimoto Y. Preoperative echocardiography predictive analytics for postinduction hypotension prediction. PLoS One. 2022 Nov 28;17(11):e0278140. doi: 10.1371/journal.pone.0278140. eCollection 2022.

  • Maheshwari K, Turan A, Mao G, Yang D, Niazi AK, Agarwal D, Sessler DI, Kurz A. The association of hypotension during non-cardiac surgery, before and after skin incision, with postoperative acute kidney injury: a retrospective cohort analysis. Anaesthesia. 2018 Oct;73(10):1223-1228. doi: 10.1111/anae.14416. Epub 2018 Aug 24.

  • Sudfeld S, Brechnitz S, Wagner JY, Reese PC, Pinnschmidt HO, Reuter DA, Saugel B. Post-induction hypotension and early intraoperative hypotension associated with general anaesthesia. Br J Anaesth. 2017 Jul 1;119(1):57-64. doi: 10.1093/bja/aex127.

  • Chen B, Pang QY, An R, Liu HL. A systematic review of risk factors for postinduction hypotension in surgical patients undergoing general anesthesia. Eur Rev Med Pharmacol Sci. 2021 Nov;25(22):7044-7050. doi: 10.26355/eurrev_202111_27255.

  • Tarao K, Daimon M, Son K, Nakanishi K, Nakao T, Suwazono Y, Isono S. Risk factors including preoperative echocardiographic parameters for post-induction hypotension in general anesthesia. J Cardiol. 2021 Sep;78(3):230-236. doi: 10.1016/j.jjcc.2021.03.010. Epub 2021 Apr 8.

  • Monge Garcia MI, Santos A. Understanding ventriculo-arterial coupling. Ann Transl Med. 2020 Jun;8(12):795. doi: 10.21037/atm.2020.04.10.

  • Guinot PG, Andrei S, Longrois D. Ventriculo-arterial coupling: from physiological concept to clinical application in peri-operative care and ICUs. Eur J Anaesthesiol Intensive Care. 2022 Aug 3;1(2):e004. doi: 10.1097/EA9.0000000000000004. eCollection 2022 Apr.

  • Aktas Yildirim S, Sarikaya ZT, Dogan L, Ulugol H, Gucyetmez B, Toraman F. Arterial Elastance: A Predictor of Hypotension Due to Anesthesia Induction. J Clin Med. 2023 Apr 27;12(9):3155. doi: 10.3390/jcm12093155.

  • Chen CH, Fetics B, Nevo E, Rochitte CE, Chiou KR, Ding PA, Kawaguchi M, Kass DA. Noninvasive single-beat determination of left ventricular end-systolic elastance in humans. J Am Coll Cardiol. 2001 Dec;38(7):2028-34. doi: 10.1016/s0735-1097(01)01651-5.

  • Mitchell C, Rahko PS, Blauwet LA, Canaday B, Finstuen JA, Foster MC, Horton K, Ogunyankin KO, Palma RA, Velazquez EJ. Guidelines for Performing a Comprehensive Transthoracic Echocardiographic Examination in Adults: Recommendations from the American Society of Echocardiography. J Am Soc Echocardiogr. 2019 Jan;32(1):1-64. doi: 10.1016/j.echo.2018.06.004. Epub 2018 Oct 1. No abstract available.

  • Cho JY, Kim KH. Evaluation of Arterial Stiffness by Echocardiography: Methodological Aspects. Chonnam Med J. 2016 May;52(2):101-6. doi: 10.4068/cmj.2016.52.2.101. Epub 2016 May 20.

  • Liu N, Chazot T, Genty A, Landais A, Restoux A, McGee K, Laloe PA, Trillat B, Barvais L, Fischler M. Titration of propofol for anesthetic induction and maintenance guided by the bispectral index: closed-loop versus manual control: a prospective, randomized, multicenter study. Anesthesiology. 2006 Apr;104(4):686-95. doi: 10.1097/00000542-200604000-00012.

  • Avidan MS, Zhang L, Burnside BA, Finkel KJ, Searleman AC, Selvidge JA, Saager L, Turner MS, Rao S, Bottros M, Hantler C, Jacobsohn E, Evers AS. Anesthesia awareness and the bispectral index. N Engl J Med. 2008 Mar 13;358(11):1097-108. doi: 10.1056/NEJMoa0707361.

Study Officials

  • Khoi M Le, Assoc.Prof

    University Medical Center

    STUDY DIRECTOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 24, 2023

First Posted

August 1, 2023

Study Start

July 3, 2023

Primary Completion

November 20, 2024

Study Completion

December 10, 2024

Last Updated

December 30, 2024

Record last verified: 2024-12

Data Sharing

IPD Sharing
Will share

Yes, there is a plan to make individual participant data (IPD) available. The de-identified dataset underlying the findings of this study will be shared upon reasonable request. Researchers can request access by contacting chinh.lh@umc.edu.vn. Requests will be reviewed to ensure compliance with ethical and legal standards.

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR
Time Frame
After publication of the study. Indefinitely
Access Criteria
"Data will be shared upon reasonable request, with approval based on the researcher's qualifications and the purpose of the request." Access will only be granted to academic or non-commercial researchers who meet the conditions outlined in the Data Use Agreement.

Locations