ALTA FREQUENZA DEI MICRO ULTRASUONI NEGLI ACCESSI VASCOLARI DEI BAMBINI, STUDIO DI FATTIBILITA'

Anche se è uno studio di fattibilità, e si dovranno compiere ulteriori studi, questa metodica può essere promettente per gli "spessori cutanei" quando sono esigui... aspettiamo i risultati!!!


Paediatr Anaesth. 2013 Feb 28. doi: 10.1111/pan.12131. [Epub ahead of print]

High-frequency micro-ultrasound for vascular access in young children - a feasibility study by the High-frequencyUltraSound in Kids studY (HUSKY) group.

Latham GJ, Veneracion ML, Joffe DC, Bosenberg AT, Flack SH, Low DK.

Source

Department of Anesthesiology and Pain Medicine, Seattle Children's Hospital, University of Washington School of Medicine, Seattle, WA, USA.

Abstract

BACKGROUND:

Cannulation of small arteries and veins in young children can be challenging. Although anesthesiologists frequently use ultrasoundfor placement of central venous lines and nerve blocks, its use for cannulation of small, peripheral vessels is less helpful. Ultrasound systems (7-15 MHz) currently used in clinical practice focus poorly at the sub-10-mm space and thus lack the resolution to allow accurate ultrasound-guidedcannulation of small vessels. High-frequency micro-ultrasound (HFMU) is a new technology that allows higher resolution (15-50 MHz) compared with conventional ultrasound. Limited human studies have been performed thus far with HFMU, and none have been performed in young children or for vascular access.

METHODS:

This study was conducted to determine the feasibility of using HFMU to visualize and cannulate peripheral arteries and central veins in children under the age of 6 years old. The diameter of radial and ulnar arteries was also measured.

RESULTS:

The anesthesiologists involved in this study found the 50 MHz HFMU probe useful for cannulation of peripheral arteries, especially in the youngest children. The higher-frequency probes were less helpful for internal jugular vein cannulation because it was not always possible to view the carotid artery while cannulating the vein.

CONCLUSIONS:

The experience gained in this feasibility study suggests that HFMU could be a valuable addition to our armamentarium for difficult vascular access in the future.

© 2013 Blackwell Publishing Ltd.

PMID:

 

23445349

 

[PubMed - as supplied by publisher]