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Radial nerve block

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https://www.readbyqxmd.com/read/29732596/ultrasound-guided-posterior-antebrachial-cutaneous-nerve-block-technical-description-and-block-distribution-in-healthy-volunteers
#1
John J Finneran, NavParkash Sandhu
The posterior antebrachial cutaneous nerve branches from the radial nerve proximal to the elbow and supplies sensation to the posterior aspect of the forearm. With a high-frequency linear transducer, the posterior antebrachial cutaneous nerve was identified in 8 healthy volunteers. Under aseptic conditions and with an ultrasound-guided in-plane technique, 1% lidocaine was injected circumferentially around the nerve. In each participant, the block was successful, and neither incidental blocks of other nerves nor any other complications were observed...
May 6, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29589414/comparison-of-axillary-nerve-block-duration-using-mepivacaine-in-non-insulin-diabetic-or-renal-insufficiency-patients-a-controlled-observational-matched-multicentre-trial
#2
Philippe Cuvillon, Melissa Casier, Christophe Demattei, Nathalie Bernard, Christophe Boisson, Nathalie Vialles, Joel Lhermite, Jacques Ripart, Xavier Capdevila
BACKGROUND: Although studies in diabetic patients demonstrated delayed recovery after long-acting local anesthetic, its effects with short-acting LA remains to be determined. Using mepivacaine, the authors evaluated the duration of axillary nerve blocks in diabetic (DP), renal failure (creatinine clearance < 30 ml.min-1) (RP) and healthy patients (HP). METHOD: We prospectively included consecutive patients aged 18-80 years, with DP (n=37), RP (n=32) and HP (n=48) scheduled for distal upper limb surgery...
March 27, 2018: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29576124/cutaneous-innervation-of-the-hand-clinical-testing-in-volunteers-shows-high-intra-and-inter-individual-variability
#3
M Keplinger, P Marhofer, B Moriggl, M Zeitlinger, S Muehleder-Matterey, D Marhofer
BACKGROUND: Many clinicians require a solid understanding of the anatomical areas supplied by specific peripheral nerves. Virtually all pertinent medical textbooks claim that the entire (palmar and dorsal) surface of the hand is supplied by three (median, radial, and ulnar) nerves and that each of these covers a well-defined area. This study was designed to evaluate the sensory-distribution pattern of peripheral nerves in the hand. METHODS: Twelve volunteers were enrolled and randomly allocated to have median, ulnar, or radial nerve blocks to each hand on three successive days...
April 2018: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29456706/comparison-of-single-and-triple-injection-methods-for-ultrasound-guided-interscalene-brachial-plexus-blockade
#4
Cun-Jin Wang, Ya-Li Ge, Ju Gao, Feng-Yun Long, Zhi-Hua Mi, Tian-Feng Huang, Xiang-Zhi Fang, Xiao-Ping Chen, Yu-Si Hua, Yang Zhang
Ultrasound-guided interscalene brachial plexus blockade (IBPB) has a relatively high success rate in shoulder surgery; however, whether multiple injections are superior to a single injection (SI) is currently unknown. In the present study, ultrasound-guided SI and triple-injection (TI) IBPBs were compared in a prospective randomized trial. A total of 111 patients undergoing arthroscopic shoulder surgery and presenting with an American Society of Anesthesiologists physical status grading of I-II were randomly allocated to receive IBPB with 15 ml of 1% ropivacaine as a SI or TI...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29405670/low-concentration-distal-nerve-blocks-with-0-125-levobupivacaine-versus-systemic-analgesia-for-ambulatory-trapeziectomy-performed-under-axillary-block-a-randomized-controlled-trial
#5
Mireia Rodríguez, FJavier González, Sergi Sabaté, Mercedes García, Claudia Lamas, Adrià Font, Marisa Moreno, Ignasi Proubasta, M Àngels Gil, M Victoria Moral, Rolf Hoffmann
BACKGROUND: Trapeziectomy is one of the most painful procedures in ambulatory surgery. This prospective randomized trial aimed to compare postoperative pain control using distal peripheral nerve blocks (dPNB) with a low concentration of a long-acting local anaesthetic versus conventional systemic analgesia. METHODS: Fifty-two patients undergoing trapeziectomy were randomized to receive levobupivacaine 0.125% 5ml on radial and median nerves at the elbow (dNB group), or not to receive these blocks (control group)...
February 5, 2018: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29366667/anatomical-characterization-of-the-brachial-plexus-in-dog-cadavers-and-comparison-of-three-blind-techniques-for-blockade
#6
Alicia Skelding, Alexander Valverde, Melissa Sinclair, Jeffrey Thomason, Noel Moens
OBJECTIVES: To describe the ventral spinal nerve rami contribution to the formation of the brachial plexus (BP), and to compare ease of performing and nerve staining between three blind techniques for BP blockade in dogs. STUDY DESIGN: Prospective, randomized, blind study. ANIMALS: A total of 18 dog cadavers weighing 28.2 ± 9.7 kg (mean ± standard deviation). METHODS: Dogs were randomly assigned to two of three BP treatments: traditional approach (TA), perpendicular approach (PA), and axillary approach (AA)...
March 2018: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/29242645/retinal-angiogenesis-regulates-astrocytic-differentiation-in-neonatal-mouse-retinas-by-oxygen-dependent-mechanisms
#7
Li-Juan Duan, Sarah J Pan, Thomas N Sato, Guo-Hua Fong
In mice, retinal vascular and astrocyte networks begin to develop at birth, expanding radially from the optic nerve head (ONH) towards the retinal periphery. The retinal vasculature grows towards the periphery ahead of differentiated astrocytes, but behind astrocytic progenitor cells (APCs) and immature astrocytes. Endothelial cell specific Vegfr-2 disruption in newborn mice not only blocked retinal vascular development but also suppressed astrocytic differentiation, reducing the abundance of differentiated astrocytes while causing the accumulation of precursors...
December 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29148009/preoperative-ultrasound-for-runoff-venous-decompression-of-peripheral-nerves-for-arteriovenous-access-related-pain-in-the-upper-limb
#8
Hiroaki Matsuda, Yoshinari Oka, Ryuichi Yoshida, Yuki Katsura, Hidemi Takeuchi, Yasuo Fujimoto, Shigeko Takatsu, Masashi Miyazaki
INTRODUCTION: Arteriovenous access (AVA)-related pain treated successfully with runoff-venous decompression of the causative nerve, following ultrasound (US)-assisted preoperative evaluation, has never been reported. CASE PRESENTATION: A 57-year-old man suffering from constant exhausting pains along the outflow cephalic vein of the radiocephalic arteriovenous fistula at the wrist and the antecubital fossa, was treated surgically after the diagnosis of AVA-related pain derived from cephalic vein compression on two peripheral cutaneous nerves, the superficial radial nerve (SRN) and the lateral antebrachial cutaneous nerve (LACN)...
November 9, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/29114414/comparison-between-the-two-injection-technique-and-the-four-injection-technique-in-axillary-brachial-plexus-block-with-articaine
#9
Aysun Ertikin, Güldeniz Argun, Mesut Mısırlıoğlu, Murat Aydın, Murat Arıkan, Nihal Kadıoğulları
Objective: In this study, we aimed to compare axillary brachial plexus block using the two-injection and four-injection techniques assisted with ultrasonography (USG) and nerve stimulator in patients operated for carpal tunnel syndrome with articaine. To evaluate which technique is more effective, we compared the onset time, effectiveness, and duration of block procedures, patient satisfaction, adverse effect of the drug, and complication rates of the motor and sensory blocks. Methods: Sixty patients were randomly divided into two groups...
October 2017: Turkish Journal of Anaesthesiology and Reanimation
https://www.readbyqxmd.com/read/29096351/a-case-report-of-an-isolated-fracture-through-the-radial-bicipital-tuberosity
#10
Kanta Imao, Hitoshi Miwa, Kazutoshi Watanabe, Norio Imai, Naoto Endo
INTRODUCTION: Generally, anatomical reduction of shaft fractures through operative treatment is necessary to restore the anatomical relationship of the forearm bones. However, a number of nerves and vessels are located in the proximal radius, which complicates surgery. In this study, we aimed to reduce postoperative complications by using a posterior approach. PRESENTATION OF CASE: We describe an isolated fracture through the radial bicipital tuberosity in a 69-year-old man caused by direct blunt force and our management of the fracture...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28934784/sonographic-guidance-for-supraclavicular-brachial-plexus-blocks-single-vs-double-injection-cluster-approach
#11
Jung Ju Choi, Hyun Jeong Kwak, Wol Seon Jung, Seung Hyun Chung, Mi Geum Lee
BACKGROUND: The cluster approach for supraclavicular brachial plexus block (SC-BPB) can be easily performed but may result in asymmetric local anesthetic (LA) spread. The authors hypothesized that the use of a cluster approach in each of the 2 planes would achieve better 3-dimensional LA distribution than the traditional single cluster approach. OBJECTIVES: The purpose of the present study was to compare a double injection (DI) in 2 planes (one injection in each plane) with the traditional single injection (SI) cluster approach for ultrasound-guided SC-BPB...
September 2017: Pain Physician
https://www.readbyqxmd.com/read/28884374/-eyeball-test-of-thermographic-patterns-for-predicting-a-successful-lateral-infraclavicular-block
#12
Asger M Andreasen, Karen E Linnet, Semera Asghar, Christian Rothe, Charlotte V Rosenstock, Kai H W Lange, Lars H Lundstrøm
PURPOSE: Increased distal skin temperature can be used to predict the success of lateral infraclavicular (LIC) block. We hypothesized that an "eyeball test" of specific infrared thermographic patterns after LIC block could be used to determine block success. METHODS: In this observational study, five observers trained in four distinct thermographic patterns independently evaluated thermographic images of the hands of 40 patients at baseline and at one-minute intervals for 30 min after a LIC block...
November 2017: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
https://www.readbyqxmd.com/read/28871408/evaluation-of-the-relationship-between-the-topographical-anatomy-in-the-axillary-region-of-the-brachial-plexus-and-the-body-mass-index
#13
Omur Ozturk, Aysu Hayriye Tezcan, Ali Bilge, Hakan Ateş, Hatice Yagmurdur, Mesut Erbas
To investigate the topographic anatomy of the median, musculocutaneous, radial and ulnar nerves with respect to the axillary artery and to seek whether these configurations are associated with baseline descriptive data including age, gender, and body-mass index. This cross-sectional trial was carried out on 199 patients (85 women, 114 men; average age: 46.78 ± 15.45 years) in the department of anaesthesiology and reanimation of a tertiary care center. Topographic anatomy of the median, musculocutaneous, radial and ulnar nerves was assessed with ultrasonography...
September 4, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28831314/surgery-averted-using-a-novel-minimally-invasive-approach-to-treat-very-severe-radial-artery-spasm
#14
Anthony A Cochet, Daniel A Bellin
A 42-year-old male admitted with a non-ST elevation myocardial infarction was referred for invasive angiographic assessment. Based on preprocedural assessment, the right radial artery approach was selected. Despite possessing none of the consensus risk factors for radial artery spasm, in addition to receiving standard arterial spasm prophylaxis and conscious sedation, the patient suffered very severe radial artery spasm with initial catheter placement, resulting in entrapment of a 5 Fr pigtail catheter within the left ventricle...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28740768/fmri-after-phalloplasty-with-nerve-anastomosis-in-a-trans-man-patient
#15
Roberto Doria-Medina, Åsa Carlsson, Emma H Jönsson, Lars Jönsson, Andri Thorarinsson, Mattias Lidén, Gennaro Selvaggi
We report on a case of a trans-man patient, who underwent penile reconstruction with the use of a radial forearm flap, urethroplasty, vaginectomy and scrotoplasty, insertion of testicle implants, and penile erection implants, similar to previously described methods. One of the requirements for an ideal phalloplasty is the preservation of erogenous sensitivity, which is often demanded by the patients for fulfilling their sexual well-being. For the first time known to us, we use a functional magnetic resonance imaging following radial forearm flap phalloplasty with nerve anastomosis to assess the cortical activation after clitoral stimulation...
June 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28651779/-randomized-prospective-study-of-three-different-techniques-for-ultrasound-guided-axillary-brachial-plexus-block
#16
Leonardo Henirque Cunha Ferraro, Alexandre Takeda, Paulo César Castello Branco de Sousa, Fernanda Moreira Gomes Mehlmann, Jorge Kiyoshi Mitsunaga Junior, Luiz Fernando Dos Reis Falcão
INTRODUCTION: Randomized prospective study comparing two perivascular techniques with the perineural technique for ultrasound-guided axillary brachial plexus block (US-ABPB). The primary objective was to verify if these perivascular techniques are noninferior to the perineural technique. METHOD: 240 patients were randomized to receive the techniques: below the artery (BA), around the artery (AA) or perineural (PN). The anesthetic volume used was 40mL of 0.375% bupivacaine...
June 23, 2017: Revista Brasileira de Anestesiologia
https://www.readbyqxmd.com/read/28439432/posterior-interosseous-nerve-palsy-caused-by-a-ganglion-conservative-treatment-with-ultrasound-guided-needle-aspiration
#17
Yasuhiro Seki
Posterior interosseous nerve palsy caused by a ganglion is not common and most previous patients were treated with excisional surgery. We treated a case conservatively with needle aspiration using ultrasonography, after a nerve conduction study. A 77-year-old man presented with impaired active finger extension of the left metacarpophalangeal joints. The nerve conduction study revealed conduction block of the left radial nerve near the elbow. Ultrasonography demonstrated a hypoechoic mass anterior to the radial neck compressing the posterior interosseous nerve...
March 2017: Journal of Ultrasonography
https://www.readbyqxmd.com/read/28420906/comparison-of-ultrasound-and-ultrasound-plus-nerve-stimulator-guidance-axillary-plexus-block
#18
Gokhan Demirelli, Semih Baskan, Isil Karabeyoglu, Ismail Aytac, Dilsen Hatice Ornek, Alper Erdogmus, Mustafa Baydar
OBJECTIVE: To evaluate the characteristics of axillary plexus blockade applied using ultrasound only and using ultrasound together with nerve stimulator in patients undergoing planned forearm, wrist or hand surgery. METHODS: This randomised, prospective, double-blinded, single-centre study was conducted at Ankara Numune Training and Research Hospital, Ankara, Turkey, from November 2014 to August 2015, and comprised patients undergoing forearm, wrist or hand surgery...
April 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28412715/non-centralized-and-functionally-localized-nervous-system-of-ophiuroids-evidence-from-topical-anesthetic-experiments
#19
Yoshiya Matsuzaka, Eiki Sato, Takeshi Kano, Hitoshi Aonuma, Akio Ishiguro
Ophiuroids locomote along the seafloor by coordinated rhythmic movements of multi-segmented arms. The mechanisms by which such coordinated movements are achieved are a focus of interest from the standpoints of neurobiology and robotics, because ophiuroids appear to lack a central nervous system that could exert centralized control over five arms. To explore the underlying mechanism of arm coordination, we examined the effects of selective anesthesia to various parts of the body of ophiuroids on locomotion. We observed the following: (1) anesthesia of the circumoral nerve ring completely blocked the initiation of locomotion; however, initiation of single arm movement, such as occurs during the retrieval of food, was unaffected, indicating that the inability to initiate locomotion was not due to the spread of the anesthetic agent...
April 15, 2017: Biology Open
https://www.readbyqxmd.com/read/28267068/sensory-distribution-of-the-lateral-cutaneous-nerve-of-forearm-after-ultrasound-guided-block-potential-implications-for-thumb-base-surgery
#20
Christopher S Hasenkam, Gregory A Hoy, Paul F Soeding
Surgery of the wrist and hand commonly involves regional anesthesia of the median nerve and superficial radial nerve within the forearm. In this sonographic study, the contribution of the lateral cutaneous nerve of forearm (LCNF) to thumb cutaneous sensation was studied. Patients scheduled for thumb suspension arthroplasty (n = 35) were examined by ultrasound, with LCNF, median nerve, and superficial radial nerve identified. A single nerve was then injected with local anesthetic, and the area of cutaneous sensory loss mapped at 15 minutes...
July 2017: Regional Anesthesia and Pain Medicine
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