The Relation Between Common Carotid Artery Diameter and Central Venous Pressure for Assessment of Intravascular Fluid Status After Major Surgeries: An Observational Study

Beni-Suef University

Status: Unknown

Conditions: Fluid Resuscitation Monitoring Non-invasively

Treatments: Diagnostic Test: common carotid artery diameter measurement

Study type: Observational

Funder types: Other

Identifiers

NCT04018443

FM-BSU REC: 007/2019

Details and patient eligibility

About

Recently, bedside ultrasound has become an important tool for the simple and non-invasive hemodynamic assessment of critically ill patients. This applies not only to echocardiography but also to ultrasound of large extra-thoracic veins. The sonography can provide real time assessment of the vascular system and hemodynamic status at the bedside.

To our knowledge, there is one report about the association between sonographically assessed carotid artery diameter and intravascular volume, which raised recommendation for further studies including the interplay between carotid geometry and intravascular fluid status.

Aim of the study:

The aim of this work is to evaluate the accuracy of noninvasive techniques for assessment of intravascular volume status by Sonographic assessment of both the common carotid artery diameter (CCA) and the central venous pressure (CVP) in response to a bolus of crystalloid solution infusion and to find the correlation between CCA diameter and CVP as the primary outcome in adults patients after major surgeries who needs close assessment and maintenance of the intravascular volume status.

Enrollment: 60 estimated patients

Sex: All

Ages: 20 to 60 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. Male and female patients (age 20-60 years).
2. ASA physical status I and II
3. Patients who are able to breathe spontaneously and lie supine.
4. Patients who have CVP catheter (subclavian or internal jugular vein).

Exclusion criteria

1. History of carotid artery surgery
2. Significant cardiac disease (cardiomyopathy and/or moderate to severe valvular heart lesion).
3. Significant hepatic disease (Child-Pugh score B or C ).
4. Renal failure.
5. Obesity: BMI ˃ 30 kg/m2
6. Need for mechanical ventilation.
7. Pregnancy.
8. Unstable vital signs during the process of sonography (e.g. the patients on vasoactive drugs)

Trial design

60 participants in 1 patient group

patients admitted ti surgical ICU after major surgery

Description:

patient admitted to surgical ICU after major surgery for post-operative close monitoring, assessment and resuscitation of the intravascular volume status

Treatment:

Diagnostic Test: common carotid artery diameter measurement