Clinical Research Directory

Standard Ultrasound Guidance vs. New Needle-steering Device in Subclavian Venous Catheterization

Up to two-thirds of intensive care unit patients require central venous catheterization for which ultrasound-guided placement is now recommended. In this context, the team performed a prospective randomized simulation trial on a mannequin ("reduced torso model"), to compare the standard ultrasound guidance technique with an ultrasound-guided technique assisted by a new needle-steering device. The preliminary results show a statistically significant improvement in subclavian venipuncture (shorter success time, fewer multiple skin punctures, fewer punctures of the posterior wall of the subclavian vein and needle redirection, greater comfort) and argue for a clinical trial to test the performance of this new device in situation with intensive care unit patients. The hypothesis is that the needle-steering device will result in a better success rate of subclavian venous cannulation, at first puncture, compared with the conventional ultrasound-guided technique.

Pulse Study: Peripheral Use of Low-dose Vasopressors for Safety and Efficacy in the Intensive Care Unit

Using medications to increase blood pressure, called vasopressors, is invaluable in treating patients who have difficulty maintaining stable blood pressure. Vasopressors are usually infused through a central venous catheter (CVC), which is a flexible tube placed in the large vein of the neck, arm or groin. CVCs require a skilled clinician and often with an ultrasound to prevent complications such as a collapsed lung or bleeding. Alternatively, the infusion of vasopressors through a peripheral venous catheter (PVC), a thin tube placed in the smaller veins of the arm or hand has been avoided due to the risk of extravasation, which is the leakage of fluid to surrounding tissues. This can lead to potential tissue death requiring surgery. However, emerging research shows the safety of infusing vasopressors through a PVC, referred to as peripheral vasopressors. There is a growing interest in peripheral vasopressors for two main reasons: to expedite vasopressor initiation in patients with refractory shock and to avoid CVC placement and its potential complications. However, a standardized protocol for administration is lacking and many clinicians still avoid peripheral vasopressors due to lack of high-quality evidence. The investigators will examine the effectiveness of implementing a peripheral vasopressor protocol by conducting a feasibility study and assessing outcomes such as the safety of peripheral vasopressors and the acceptability rate of healthcare providers. By conducting this study, the investigators aim to provide the framework to conduct larger, multi-center trials and to provide high-quality data for the future use of a standardized peripheral vasopressor protocol.

Open Surgical, Modified Seldinger's and US Techniques for Jugular Central Line Insertion in Infants

The aim of this study was to compare the three approaches: open technique, modified Seldinger's technique and closed ultrasound-guided Central venous catheterization insertion for central line insertion in infancy as regards safety, success of cannulation, technique time, and preservation of the patency of the internal jugular vein.

Evaluation of Central Jugular Vein Catheter Lumen Holder Design and Ergonomic Use

The aim of this study was to evaluate the design and ergonomic use of central jugular vein catheter lumen holder.