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Ultrasonographic techniques

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2 papers 0 to 25 followers
By Scott Bentley Rural GP Anaesthetist & Medical Officer in Aeromedical Retrieval Medicine
Yoshinobu Nakayama, Yuko Inagaki, Yasufumi Nakajima, Daniel I Sessler, Nobuhiro Mukai, Satoru Ogawa, Toshiki Mizobe, Teiji Sawa
BACKGROUND: The main cause of unsuccessful peripheral radial artery catheterization using traditional palpation is imprecisely locating the arterial center. The authors evaluated factors causing disparities between the arterial centers determined by palpation versus ultrasound. The authors applied them to create and test a novel catheterization training program. METHODS: The arterial central axis was determined by ultrasound and palpation in 350 adults. Potential independent predictors of disparity included sex, body mass index, pulse pressure, transverse arterial diameter, subcutaneous arterial depth, chronic hypertension, and experience as an anesthesiologist (less than 3 vs...
October 2016: Anesthesiology
M S Kristensen, W H Teoh, S S Rudolph
Inability to identify the cricothyroid membrane by inspection and palpation contributes substantially to the high failure rate of cricothyrotomy. This narrative review summarizes the current evidence for application of airway ultrasonography for identification of the cricothyroid membrane compared with the clinical techniques. We identified the best-documented techniques for bedside use, their success rates, and the necessary training for airway-ultrasound-naïve clinicians. After a short but structured training, the cricothyroid membrane can be identified using ultrasound in difficult patients by previously airway-ultrasound naïve anaesthetists with double the success rate of palpation...
September 2016: British Journal of Anaesthesia
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