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Ulnar nerve block

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https://www.readbyqxmd.com/read/29786115/effects-of-cardiac-output-on-the-onset-of-rocuronium-induced-neuromuscular-block-in-elderly-patients
#1
Naoki Shiraishi, Mayu Aono, Yasuhito Kameyama, Mai Yamamoto, Osamu Kitajima, Takahiro Suzuki
PURPOSE: The aim of this study was to elucidate the relationship between the onset of rocuronium-induced neuromuscular block and arterial pressure-based cardiac output (CO) in elderly patients. METHODS: Forty elderly patients aged 65-83 years were enrolled in this study. After induction of anesthesia, contractions of the adductor pollicis muscle to ulnar nerve train-of-four stimulation were acceleromyographically evaluated and 1 mg/kg rocuronium was administered following CO measurement...
May 21, 2018: Journal of Anesthesia
https://www.readbyqxmd.com/read/29778971/infraclavicular-and-supraclavicular-approaches-to-brachial-plexus-for-ambulatory-elbow-surgery-a-randomized-controlled-observer-blinded-trial
#2
Shalini Dhir, Brigid Brown, Peter Mack, Yves Bureau, Janice Yu, Douglas Ross
STUDY OBJECTIVE: To compare the effectiveness of supraclavicular and infraclavicular approaches to brachial plexus block for elbow surgery. DESIGN: Prospective, parallel arm, observer-blinded, randomized controlled trial. SETTING: This study occurred in a designated block room at St. Joseph's hospital, a large academic tertiary hospital in London, Canada. PATIENTS: 150 adult ASA class I-III patients undergoing elective ambulatory elbow surgery...
May 17, 2018: Journal of Clinical Anesthesia
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
#3
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
#4
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/29557852/cooperative-hand-movements-effect-of-a-reduced-afference-on-the-neural-coupling-mechanism
#5
Felix A Thomas, Volker Dietz, Thiemo Scharfenberger, Miriam Schrafl-Altermatt
The aim of this study was to evaluate the influence of unilateral reduction of afferent input on the 'neural coupling' mechanism during cooperative hand movements. This 'neural coupling' is reflected in the task-specific appearance of contralateral reflex responses in forearm muscles to unilateral arm nerve stimulation. Sensory input from the right hand was reduced by ischemic nerve block at the right wrist. Ipsilateral and contralateral reflex responses elicited by stimulation of the ulnar nerve either at the left or the right wrist proximal to the nerve block were recorded in forearm extensors during the performance of cooperative hand movements...
May 23, 2018: Neuroreport
https://www.readbyqxmd.com/read/29553516/a-simple-non-invasive-method-for-temporary-knockdown-of-upper-limb-proprioception
#6
Jacey L Janz Vernoski, Jack R Bjorkland, Talia J Kramer, Steven T Oczak, Alexandra L Borstad
Proprioception may be the least well measured of all contributors to the neural control of movement. New precise, reliable measures of proprioception are needed for clinical diagnosis of impairment, and to measure outcomes of proprioceptive training. The purpose of this simple, non-invasive method is to temporarily knockdown upper limb proprioception in healthy adults, to an extent that would be useful in the development and testing of upper limb proprioception measures. Knockdown models have two main advantages over studying humans with impaired proprioception: participant availability and the ability to control the extent of impairment across participants...
March 3, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29517147/ulnar-nerve-conduction-block-using-surface-kilohertz-frequency-alternating-current-a-feasibility-study
#7
Shmuel Springer, Zvi Kozol, Zvi Reznic
The aim of this study was to test the effects of kilohertz frequency alternating current (KHFAC) surface stimulation applied to the ulnar nerve on force and myoelectrical activity of the abductor digiti minimi (ADM) muscle. Eighteen healthy volunteers (age: 27.6 ± 7.9 years; 10 males, 8 females) were included in the study. Each subject participated in one session during which a biphasic 7 kHz rectangular pulse was delivered above the medial epicondyle of the humerus to induce ulnar nerve blocking. ADM electromyographic (EMG) activity and contraction force were measured before (Pre), immediately after, and following 5 and 10 min post stimulation (post 1, post 2)...
March 8, 2018: Artificial Organs
https://www.readbyqxmd.com/read/29486876/bias-limits-of-agreement-and-percent-errors-between-acceleromyography-and-mechanomyography-in-anesthetized-dogs
#8
D M Sakai, M Romano, C T Tseng, A Flanders, M Martin-Flores
This study compared measurements of neuromuscular function with mechanomyography (MMG) and acceleromyography (AMG) in nine anesthetized dogs receiving 0.1mg/kg vecuronium intravenously. Train-of-four (TOF) stimulation was applied to each ulnar nerve every 15s. The resulting amplitude of the first twitch (T1) and the TOF ratio were measured with both monitors. The baseline TOF ratio (prior to vecuronium), onset time (time of injection to T1<5%), recovery index (time between T1 values of 25% and 75%) and duration of neuromuscular block (injection to TOF 0...
March 2018: Veterinary Journal
https://www.readbyqxmd.com/read/29456706/comparison-of-single-and-triple-injection-methods-for-ultrasound-guided-interscalene-brachial-plexus-blockade
#9
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/29366667/anatomical-characterization-of-the-brachial-plexus-in-dog-cadavers-and-comparison-of-three-blind-techniques-for-blockade
#10
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/29274823/change-in-the-temporal-coordination-of-the-finger-joints-with-ulnar-nerve-block-during-different-power-grips-analyzed-with-a-sensor-glove
#11
N J Wachter, M Mentzel, C Häderer, G D Krischak, J Gülke
Ulnar nerve injuries can cause deficient hand movement patterns. Their assessment is important for diagnosis and rehabilitation in hand surgery cases. The purpose of this study was to quantify the changes in temporal coordination of the finger joints during different power grips with an ulnar nerve block by means of a sensor glove. In 21 healthy subjects, the onset and end of the active flexion of the 14 finger joints when gripping objects of different diameters was recorded by a sensor glove. The measurement was repeated after an ulnar nerve block was applied in a standardized setting...
February 2018: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/29114414/comparison-between-the-two-injection-technique-and-the-four-injection-technique-in-axillary-brachial-plexus-block-with-articaine
#12
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/29091318/early-electrophysiological-findings-in-acute-inflammatory-demyelinating-polyradiculoneuropathy-variant-of-guillain-barre-syndrome-in-the-pakistani-population-a-comparison-with-global-data
#13
Ahmad Wali, Dureshahwar Kanwar, Safoora A Khan, Sara Khan
Acute inflammatory demyelinating polyradiculoneuropathy (AIDP) and acute motor axonal neuropathy are the most common variants of Guillian-Barre syndrome documented in the Asian population. However, the variability of early neurophysiologic findings in the Asian population compared to western data has not been documented. Eighty-seven cases of AIDP were retrospectively reviewed for their demographic, clinical, electrophysiological, and laboratory data. Mean age of subjects was 31 ± 8 years with males more commonly affected...
December 2017: Journal of the Peripheral Nervous System: JPNS
https://www.readbyqxmd.com/read/29042158/predictive-value-of-metacarpophalangeal-stabilization-tests-for-simulated-ulnar-nerve-lesion-measured-by-a-sensor-glove
#14
Nikolaus Johannes Wachter, Martin Mentzel, Gert D Krischak, Joachim Gülke
STUDY DESIGN: A within-subject research design was used in this study. The difference of the range of motion (ROM) with and without ulnar nerve block was analyzed. INTRODUCTION: For the clinical evaluation of the functional effects of ulnar nerve palsy at the hand the relevance of clinical tests is in discussion. PURPOSE OF THE STUDY: The aim of the study was to evaluate the predictive value of 2 clinical tests for a simulated ulnar nerve lesion by motion analysis with a sensor glove...
October 14, 2017: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/28953616/effects-of-methylprednisolone-on-the-duration-of-rocuronium-induced-neuromuscular-block-a-randomized-double-blind-trial
#15
RANDOMIZED CONTROLLED TRIAL
Weilian Geng, Yuyan Nie, Shaoqiang Huang
BACKGROUND: We aim to investigate whether intraoperative use of methylprednisolone could affect the duration of rocuronium-induced neuromuscular blockade. METHODS: A double blind, randomized, placebo-controlled trial was conducted. A total of 136 patients underwent gynecologic laparoscopic surgery were randomly divided into 3 groups: pregroup, receiving intravenous injection of methylprednisolone (40 mg) 30 minutes before induction of anesthesia; postgroup, receiving intravenous injection of methylprednisolone (40 mg) immediately after induction of anesthesia and intubation; and control group, receiving intravenous injection of normal saline...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28934784/sonographic-guidance-for-supraclavicular-brachial-plexus-blocks-single-vs-double-injection-cluster-approach
#16
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/28930949/the-blocking-flap-for-ulnar-nerve-instability-after-in-situ-release-technique-and-a-grading-system-of-ulnar-nerve-instability-to-guide-treatment
#17
Peter Tang
In situ ulnar nerve release has been gaining popularity as a simple, effective, and low-morbidity procedure for the treatment of cubital tunnel syndrome. One concern with the technique is how to manage the unstable ulnar nerve after release. It is unclear how much nerve subluxation will lead to problems and surprisingly there is no grading system to assess ulnar nerve instability. I propose such a grading system, as well as a new technique to stabilize the unstable ulnar nerve. The blocking flap technique consists of raising a rectangular flap off the flexor/pronator fascia and attaching it to the posterior subcutaneous flap so that it blocks the nerve from subluxation/dislocation...
December 2017: Techniques in Hand & Upper Extremity Surgery
https://www.readbyqxmd.com/read/28884374/-eyeball-test-of-thermographic-patterns-for-predicting-a-successful-lateral-infraclavicular-block
#18
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
#19
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/28701627/impact-of-keyboard-typing-on-the-morphological-changes-of-the-median-nerve
#20
RANDOMIZED CONTROLLED TRIAL
Ping Yeap Loh, Wen Liang Yeoh, Hiroki Nakashima, Satoshi Muraki
OBJECTIVES: The primary objective was to investigate the effects of continuous typing on median nerve changes at the carpal tunnel region at two different keyboard slopes (0° and 20°). The secondary objective was to investigate the differences in wrist kinematics and the changes in wrist anthropometric measurements when typing at the two different keyboard slopes. METHODS: Fifteen healthy right-handed young men were recruited. A randomized sequence of the conditions (control, typing I, and typing II) was assigned to each participant...
September 28, 2017: Journal of Occupational Health
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