Surface Landmarks and C-length as Predictors of Depth of Right IJV Catheter Insertion: A TEE-Guided Study

NCT04274881 | Completed

• 1 other identifier: FMASU MS 301/2019
• Study Type: observational
• Target: 70
• Locations: 1 country
• Sites: 1

Brief Summary

The primary aim of this study is to derive a prediction rule to estimate the required length for placement of the CVC tip at the mid-point of the SVC from simple anatomical landmarks that are consistent with the known surface projections of the great veins. The accuracy of this rule will be examined using TEE and is intended for adult patients undergoing cannulation of the right IJV utilizing a middle approach. As a secondary aim, we will examine the performance of this suggested rule as contrasted with two other popular methods for estimation of the CVC length, the Peres formula and the C-length method.

Conditions

Catheterization, Central Venous; Echocardiography, Transesophageal; Anatomic Landmarks; Radiography

Keywords

Surface landmarks; C-length; Central venous catheterization; Internal jugular vein; Prediction; Accuracy

Outcome Measures

Primary Outcomes (2)

• Accuracy of surface landmarks for prediction of CVC depth required to place the CVC tip at the mid-SVC.

  Difference between actual length required to place the CVC tip at the mid-SVC as guided by TEE and the distance from the entry point to the surface point corresponding to the mid-SVC on the chest wall.

  Outcome will be assessed at completion of catheterization procedure

• Accuracy of C-length for prediction of CVC depth required to place the CVC tip at the mid-SVC.

  Difference between actual length required to place the CVC tip at the mid-SVC as guided by TEE and the C-length.

  Outcome will be assessed at completion of catheterization procedure

Interventions

Catheterization of internal jugular vein PROCEDURE

The right internal jugular vein will be cannulated under transesophageal echocardiographic (TEE) guidance in order to place the catheter tip in the mid-SVC. The length of the catheter required to place the tip at the mid-SVC as guided by TEE will be regressed on the C-length or on the distance from the entry point to the surface point corresponding to the mid-SVC on the chest wall in order to obtain a predictive equation. The accuracy of either equation will be assessed by estimation of the standard error of the estimate (SEest).

Also known as: Transesophageal echocardiography (to guide placement of central venous catheter tip at mid-SVC)

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Probability Sample

Study Population

Adult subjects of either sex who are scheduled for elective cardiac surgery in whom echocardiography is indicated or recommended will be eligible.

You may qualify if:

• Adult subjects (age 18 years or older).
• Elective cardiac surgery.
• Echocardiography is indicated or recommended.

You may not qualify if:

• Previous cardiothoracic or neck surgery.
• Previous radiotherapy on the neck or chest.
• Intra-thoracic or neck mass lesions.
• Deformity of the chest wall.
• Anomalies of the great vessels.
• Congenital heart disease.

Sponsors & Collaborators

• Ain Shams University: lead

Study Sites (1)

Ain Shams University Hospitals

Cairo, 11517, Egypt

Location

Study Officials

• Sameh M Hakim, MD

  Ain Shamd University, Faculty of Medicine, Department of Anesthesiology

  STUDY DIRECTOR

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Professor of Anesthesiology, Intensive Care and Pain Management

Study Record Dates

• First Submitted: February 16, 2020
• First Posted: February 18, 2020
• Study Start: October 1, 2019
• Primary Completion: September 1, 2020
• Study Completion: December 1, 2020
• Last Updated: May 1, 2025

Record last verified: 2025-04

Data Sharing

• IPD Sharing: Will not share

Locations

EG (1)