Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine
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Growing evidence is showing the usefulness of lung ultrasound in patients with the 2019 new coronavirus disease (COVID-19). Severe acute respiratory syndrome coronavirus 2 has now spread in almost every country in the world. In this study, we share our experience and propose a standardized approach to optimize the use of lung ultrasound in patients with COVID-19. We focus on equipment, procedure, classification, and data sharing.
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Case Reports
Ultrasound-Guided Perineural Injection for Pronator Syndrome Caused by Median Nerve Entrapment.
Patients and physicians have increasingly sought minimally invasive procedures such as ultrasound-guided injection for the treatment of peripheral nerve entrapment syndromes. In this series, we assessed subjective outcome data in 14 patients who underwent ultrasound-guided perineural hydrodissection and steroid injection for pronator syndrome secondary to median nerve entrapment in the pronator tunnel. Excellent symptomatic relief (≥75% improvement) was achieved in 70% of nerves with 3-month follow-up data, with no significant change in symptoms between 3 and 6 months. These outcomes suggest that this technique could play a role in the management of pronator syndrome due to median nerve entrapment.
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Hypotension is common after induction of general anesthesia, and intraoperative hypotension is associated with postoperative end-organ injury such as acute kidney injury and myocardial ischemia. This study was designed to determine the utility of the carotid corrected flow time (cFT) and carotid artery peak blood flow velocity variation (ðVpeak ) for prediction of hypotension after induction of general anesthesia. ⋯ The cFT measured in the common carotid artery is a reasonable predictor of hypotension after induction of general anesthesia in American Society of Anesthesiologists physical status I and II patients. Further studies are required to identify its role in high-risk patients such as older groups and patients with cardiovascular diseases and also to identify interobserver and intraobserver variability of cFT and ðVpeak measurements.
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To document changes in the median nerve cross-sectional area (CSA) in the proximal carpal tunnel region after ultrasound (US)-guided carpal tunnel release (CTR). ⋯ To our knowledge, this investigation was the largest to date examining changes in the proximal median nerve CSA after US-guided CTR. Statistically significant reductions in the proximal median nerve CSA were observed within 6 to 10 weeks after ultrasound-guided CTR. These reductions were similar to those previously reported for open and endoscopic CTR and validate the ability of US-guided CTR to relieve median nerve compression.