In the past nerve stimulation was considered the standard tool for anesthesiologists to locate the peripheral nerve for nerve blocks. However, with the recent introduction of ultrasound (US) technology for regional anesthesia, the use of nerve stimulation has become a rarity nowadays. There is a growing interest by most anesthesiologists in using US for nerve blocks because of its simplicity and accuracy. US is now available in most hospitals practicing regional anesthesia and is a popular tool for performance of nerve blocks. Although nerve stimulation became a rarity, however the use of it is now limited to identify small nerve structures, such as greater auricular nerve and medial antebrachial cutaneous nerve of the forearm. However, in this review article we discuss the role of ultrasonography for greater auricular and antebrachial cutaneous nerve blocks, which could replace nerve stimulation technique. We look at the available literature on the role of US for the performance of uncommon nerve blocks and its benefits.
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http://dx.doi.org/10.4103/1658-354X.87269 | DOI Listing |
BMJ Open
December 2024
Department of Anesthesiology, Sichuan Province Orthopedic Hospital, Chengdu, Sichuan, China
Introduction: Alleviating postoperative pain from developmental dysplasia of the hip (DDH) surgery is beneficial for paediatric patients. The most commonly used anaesthetic approach currently is general anaesthesia combined with regional nerve blocks. Existing research primarily focuses on studies comparing regional nerve blocks with placebo controls, or studies comparing two different regional nerve blocking techniques.
View Article and Find Full Text PDFAnesth Analg
February 2025
Department of Anesthesiology, First People's Hospital Zigong, Sichuan, China.
J Perioper Pract
January 2025
Department of Anaesthesiology and Intensive Care, Nizam's Institute of Medical Sciences, Hyderabad, India.
Introduction: Patient positioning for spinal anaesthesia in patients with femur fracture is extremely painful and various methods have been tried to reduce mobilisation pain.
Aim: To compare the analgesic efficacy of intravenous dexmedetomidine, ketamine and femoral nerve block in patients posted for fractured femur for alleviating the positional pain before spinal anaesthesia.
Materials And Methods: A total of 75 patients (25 per group) of American Society of Anaesthetists Grade I-III patients of age group 18-80 years with fractured femur scheduled for elective surgery.
J Med Ultrasound
November 2024
Department of Anesthesiology, Ibra Hospital, Ibra, Oman.
Background: It is very well known that the supraclavicular nerve (SCN) which occupies the inferior part of the superficial cervical plexus basically originates from the ventral rami of C2-C4, then travels caudally into the investing layer of the deep cervical fascia (IL-DCF) alternatively termed the "prevertebral fascia."
Methods: This cadaveric study (a total of 6 soft-embalmed cadavers and bilateral dissections, i.e.
Adv Mater
January 2025
State Key Laboratory of Organic Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.
To reduce carbon footprint and human dependence on fossil fuels, the field of bio-based polymers has undergone explosive growth in recent years. Among them, bio-based elastomers have gained tremendous attention for their inherent softness, high strain, and resilience. In this review, the recent progress of representative bio-based elastomers derived from molecular building blocks and biopolymers are recapitulated, with an emphasis on molecular design, synthesis approaches, and mechanical performance.
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