Content continues after advertisement

Ultrasound-Guided Vascular Catheterization

Clinician's Brief (Capsule)

Internal Medicine

|July 2014

Sign in to Print/View PDF

An ultrasound-guided technique to achieve jugular vein catheterization in a cardiac arrest dog model was evaluated. Obtaining vascular access in an emergency situation is critical. However, access in hypotensive or hypovolemic patients can be challenging, and unsuccessful attempts often produce hematomas. Studies of ultrasound-guided vascular access in humans have realized a higher success rate and fewer complications.

Cardiac arrest was induced in 9 walker hounds. One of 3 randomly assigned operators attempted to place a jugular catheter with ultrasound guidance; 27 attempts were made. Simulated hematomas were created in 9 patients by injecting 5–15 mL of blood in SC tissue around the vein. Alcohol was applied to all catheterization sites and proved sufficient for obtaining an ultrasound image. Mean time to vascular access without a hematoma was 1.9 minutes and 4.3 minutes with a hematoma. Perceived difficulty in placing the jugular catheter was the same; however, individuals did perceive the initial catheterization attempts to be more difficult. This learning curve was shallow, thus showing that individuals can easily learn the ultrasound-guided technique. Keeping the vessel and catheter tip in the same plane as the ultrasound probe was important. The authors concluded that further studies are required to evaluate the ultrasound-guided technique.

Commentary

Ultrasonography has become popular in emergency and critical care as a diagnostic tool for identifying and sampling cavitary fluid/air accumulation and anatomic organ changes in the critically ill and injured patient and as an instrument to facilitate nonsurgical, interventional techniques (eg, obtaining vascular access, administering nerve blocks). This study suggested that using ultrasonography to guide jugular vein catheterization may reduce failure rates when percutaneously obtaining IV access. For veterinarians who use ultrasonography regularly, the technique can be practiced on recently deceased patients, thus potentially improving its implementation on live patients. This technique may be useful for veterinary technicians who work in states that do not permit them to perform surgical cut-down procedures for vascular access.—Elke Rudloff, DVM, DACVECC

Source

Evaluation of ultrasound-guided vascular access in dogs. Chamberlin SC, Sullivan LA, Morley PS, Boscan P. JVECC 23:498-503, 2013.

For global readers, a calculator to convert laboratory values, dosages, and other measurements to SI units can be found here.

All Clinician's Brief content is reviewed for accuracy at the time of publication. Previously published content may not reflect recent developments in research and practice.

Material from Clinician's Brief may not be reproduced, distributed, or used in whole or in part without prior permission of Educational Concepts, LLC. For questions or inquiries please contact us.

Podcasts

Clinician's Brief:
The Podcast
Listen as host Alyssa Watson, DVM, talks with the authors of your favorite Clinician’s Brief articles. Dig deeper and explore the conversations behind the content here.
Clinician's Brief provides relevant diagnostic and treatment information for small animal practitioners. It has been ranked the #1 most essential publication by small animal veterinarians for 9 years.*

*2007-2017 PERQ and Essential Media Studies

© 2023 Educational Concepts, L.L.C. dba Brief Media ™ All Rights Reserved. Terms & Conditions | DMCA Copyright | Privacy Policy | Acceptable Use Policy