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Perfusion Index-derived Parameters as Predictors Post-induction Hypotension.

NCT04217226 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 93

Last updated 2020-07-30

No results posted yet for this study

Summary

The perfusion index (PI) is a numerical value for the ratio between pulsatile and non-pulsatile blood flow measured by a special pulse oximeter. PI represents the baseline sympathetic tone which is assumed one of the factors contributing for hypotension. Patients with low PI were reported by Mahendale and Rajasekhar to show greater hypotension after induction of anesthesia. This was explained by the high sympathetic tone in these patients which is suddenly masked by propofol administration leading to profound hypotension.

This study aims to evaluate the ability of preoperative plethysmographic variability index, perfusion index and the Dicrotic Plethysmography to predict post-induction hypotension.

Conditions

Interventions

DEVICE

Perfusion index derived parameters

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). This device allows bluetooth radio for transfer of parameter data to a smart device. The device will be applied on the index finger of the dominant hand of each patient. It will be applied on the hand that neither contains the venous line nor the blood pressure cuff. Three measurements of PVI and PI on one minute interval will be recorded. We will use the average of these readings. Dicpleth is defined as the ratio of the height of the dicrotic notch to the height of the systolic peak, measured at end-expiratory time.

Sponsors & Collaborators

  • Cairo University

    lead OTHER

Principal Investigators

  • Bassant abdelhamid, M.D. · Cairo University

Eligibility

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

Timeline & Regulatory

Start
2020-01-20
Primary Completion
2020-06-05
Completion
2020-07-28

Countries

  • Egypt

Study Locations

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Entities

Diseases

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 NCT04217226 on ClinicalTrials.gov