| Ultrasonido: Entendiendo y aprendiendo el lenguaje básico |
Ultrasound: Basic understanding and learning the language.
Ihnatsenka B, Boezaart AP.
Department of Anesthesiology, Division of Acute Pain Medicine and Regional Anesthesia.
Int J Shoulder Surg. 2010 Jul;4(3):55-62.
Abstract
Ultrasound (US) use has rapidly entered the field of acute pain medicine and regional anesthesia and interventional pain medicine over the last decade, and it may even become the standard of practice. The advantages of US guidance over conventional techniques include the ability to both view the targeted structure and visualize, in real time, the distribution of the injected medication, and the capacity to control its distribution by readjusting the needle position, if needed. US guidance should plausibly improve the success rate of the procedures, their safety and speed. This article provides basic information on musculoskeletal US techniques, with an emphasis on the principles and practical aspects. We stress that for the best use of US, one should venture beyond the "pattern recognition" mode to the more advanced systematic approach and use US as a tool to visualize structures beyond the skin (sonoanatomy mode). We discuss the sonographic appearance of different tissues, introduce the reader to commonly used US-related terminology, cover basic machine "knobology" and fundamentals of US probe selection and manipulation. At the end, we discuss US-guided needle advancement. We only briefly touch on topics dealing with physics, artifacts, or sonopathology, which are available elsewhere in the medical literature.
http://www.internationalshoulderjournal.org/text.asp?2010/4/3/55/76960
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| Bloqueo del nervio cutáneo femoral lateral guiado con ultrasonido en meralgia parestética |
Ultrasound-guided Lateral Femoral Cutaneous Nerve Block in Meralgia Paresthetica.
Kim JE, Lee SG, Kim EJ, Min BW, Ban JS, Lee JH.
Department of Anesthesiology and Pain Medicine, Daegu Fatima Hospital, Daegu, Korea.
Korean J Pain. 2011 Jun;24(2):115-8. Epub 2011 Jun 3.
Abstract
Meralgia paresthetica is a rarely encountered sensory mononeuropathy characterized by paresthesia, pain or sensory impairment along the distribution of the lateral femoral cutaneous nerve (LFCN) caused by entrapment or compression of the nerve as it crossed the anterior superior iliac spine and runs beneath the inguinal ligament. There is great variability regarding the area where the nerve pierces the inguinal ligament, which makes it difficult to perform blind anesthetic blocks. Ultrasound has developed into a powerful tool for the visualization of peripheral nerves including very small nerves such as accessory and sural nerves. The LFCN can be located successfully, and local anesthetic solution distribution around the nerve can be observed with ultrasound guidance. Our successfully performed ultrasound-guided blockade of the LFCN in meralgia paresthetica suggests that this technique is a safe way to increase the success rate.
http://pdf.medrang.co.kr/paper/pdf/Jkp/Jkp024-02-10.pdf
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3111560/pdf/kjpain-24-115.pdf
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