Photoplethysmography Detects Changes in Vascular Tone

NCT ID: NCT02854852

Last Updated: 2018-10-03

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

Total Enrollment

50 participants

Study Classification

OBSERVATIONAL

Study Start Date

2017-03-15

Study Completion Date

2018-01-30

Brief Summary

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Changes in the vascular tone of anesthetized patients is common and cause hemodynamic problems. The monitoring of such changes in vascular resistance using simple and non-invasive tools is lacking. The present study was designed to determine if photoplethysmography can detect changes in the systemic vascular resistance using Doppler as the reference method.

Detailed Description

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This is a prospective and observational study designed to test the reliability of photoplethysmography to diagnose changes in the vascular resistance during anesthesia. The investigators will studied 50 mechanically ventilated patients undergoing general anesthesia. Photoplethysmography will be continuously recorded in the right thumb during anesthesia. Duplex color and power Doppler will measure flow in the radial artery of the right hand.The contour analysis of both, photoplethysmogram and radial artery flow will be analyzed, correlated and compared using the Bland-Altman plot.

Conditions

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Vascular Diseases

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

PROSPECTIVE

Study Groups

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Patients undergoing general anesthesia

Patients ASA 1-3, undergoing different types of general anesthesia, in supine position, with standard or advanced hemodynamic monitoring.

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Written Inform Consent
* Programmed surgery
* Supine position

Exclusion Criteria

* Emergency surgery
* Peripheral vascular diseases
Minimum Eligible Age

20 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Hospital Privado de Comunidad de Mar del Plata

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Gerardo Tusman, MD

Role: PRINCIPAL_INVESTIGATOR

Study Principal Investigato

Locations

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Hospital Privado de Comunidad

Mar del Plata, Buenos Aires, Argentina

Site Status

Countries

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Argentina

Other Identifiers

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359/16

Identifier Type: -

Identifier Source: org_study_id

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