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IVC Ultrasonography Versus Plethysmographic Variability Index for Prediction of General Anesthesia Induction Hypotension

NCT04238234 · Status: UNKNOWN · Type: OBSERVATIONAL · Enrollment: 90

Last updated 2021-10-06

No results posted yet for this study

Summary

This thesis aims to evaluate the ability of preoperative plethysmographic variability index to predict post-induction hypotension in comparison with ultrasound measurements of inferior vena cava (IVC) diameter.

Conditions

  • Hypotension on Induction

Interventions

DEVICE

IVC Ultrasonography

Ultrasound measurements will be performed using a curved transducer set to abdominal mode (1-5 MHz; Acuson x300; Siemens Healthcare, Seoul, Korea). IVC variation will be assessed using ultrasound in the long-axis (sagittal) view. IVC diameter will be measured 1 cm distal to its junction with hepatic vein either by 2-D or M modes via a subcostal approach according to the methodology described by the American Society of Echocardiography . A two-dimensional image of the IVC as it enters the right atrium will be first obtained.

DEVICE

Plethysmographic variability index (PVI) and perfusion index readings (PI)

The PVI and PI will be recorded in the supine position by an anaesthesiologist who was not involved in the further intraoperative monitoring of the patient using Masimo SET ("MightySat 9900, Masimo Corporation, Irvine, CA, USA). PVI (%) is a measure of the dynamic change in PI that occurs during one or more complete respiratory cycles, calculated as: PVI= \[(PImax-PImin)/PImax\] x100

Sponsors & Collaborators

  • Cairo University

    lead OTHER

Principal Investigators

  • Bassant abdelhamid, M.D. · Cairo University

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2021-08-05
Primary Completion
2021-10-30
Completion
2021-11-01

Countries

  • Egypt

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04238234 on ClinicalTrials.gov