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Regional nerve block

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https://www.readbyqxmd.com/read/28447862/high-reliability-microcontroller-nerve-stimulator-for-assistance-in-regional-anaesthesia-procedures
#1
Carlos A Ferri, Antonio A F Quevedo
In the last decades, the use of nerve stimulators to aid in regional anaesthesia has been shown to benefit the patient since it allows a better location of the nerve plexus, leading to correct positioning of the needle through which the anaesthetic is applied. However, most of the nerve stimulators available in the market for this purpose do not have the minimum recommended features for a good stimulator, and this can lead to risks to the patient. Thus, this study aims to develop an equipment, using embedded electronics, which meets all the characteristics, for a successful blockade...
April 27, 2017: Journal of Medical Engineering & Technology
https://www.readbyqxmd.com/read/28430691/continuous-peripheral-nerve-blocks-and-alternative-regional-analgesic-modalities-clarification-regarding-relative-superiority
#2
Brian M Ilfeld
No abstract text is available yet for this article.
April 19, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28420906/comparison-of-ultrasound-and-ultrasound-plus-nerve-stimulator-guidance-axillary-plexus-block
#3
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/28416174/-ultrasound-guided-quadratus-lumborum-block-for-analgesia-after-cesarean-delivery-case-series
#4
Ilana Sebbag, Fatemah Qasem, Shalini Dhir
INTRODUCTION: The majority of women having planned cesarean section receive spinal anesthesia for the procedure. Typically, spinal opioids are administered during the same time as a component of multimodal analgesia to provide pain relief in the 16-24h period postoperatively. The quadratus lumborum block is a regional analgesic technique that blocks T5-L1 nerve branches and has an evolving role in postoperative analgesia for lower abdominal surgeries and may be a potential alternative to spinal opioids...
April 14, 2017: Revista Brasileira de Anestesiologia
https://www.readbyqxmd.com/read/28412715/non-centralized-and-functionally-localized-nervous-system-of-ophiuroids-evidence-from-topical-anesthetic-experiments
#5
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/28396932/comparison-of-analgaesia-with-lumbar-epidurals-and-lumbar-plexus-nerve-blocks-in-patients-receiving-multimodal-analgaesics-following-primary-total-hip-arthroplasty-a-retrospective-analysis
#6
N Robert Harvey, Bethany J Wolf, Eric D Bolin, Sylvia H Wilson
PURPOSE: Significant post-operative pain occurs after hip arthroplasty. In a prior study, lumbar plexus nerve blocks provided comparable analgaesia to lumbar epidurals; however, multimodal analgaesics were not used consistently. METHODS: This study assessed a randomly selected cohort of 48 patients undergoing primary hip arthroplasty who received a regional anaesthesia technique for post-operative pain. Twenty-four patients with lumbar epidurals and 24 with single-injection lumbar plexus nerve blocks were reviewed using electronic medical records...
April 11, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28396863/real-time-ultrasound-mri-fusion-for-suprasacral-parallel-shift-approach-to-lumbosacral-plexus-blockade-and-analysis-of-injectate-spread-an-exploratory-randomized-controlled-trial
#7
Jennie Maria Christin Strid, Erik Morre Pedersen, Sinan Naseer Hussain Al-Karradi, Mathias Alrø Fichtner Bendtsen, Siska Bjørn, Mette Dam, Morten Daugaard, Martin Sejr Hansen, Katrine Danker Linnet, Jens Børglum, Kjeld Søballe, Thomas Fichtner Bendtsen
Fused real-time ultrasound and magnetic resonance imaging (MRI) may be used to improve the accuracy of advanced image guided procedures. However, its use in regional anesthesia is practically nonexistent. In this randomized controlled crossover trial, we aim to explore effectiveness, procedure-related outcomes, injectate spread analyzed by MRI, and safety of ultrasound/MRI fusion versus ultrasound guided Suprasacral Parallel Shift (SSPS) technique for lumbosacral plexus blockade. Twenty-six healthy subjects aged 21-36 years received two SSPS blocks (20 mL 2% lidocaine-epinephrine [1 : 200,000] added 1 mL diluted contrast) guided by ultrasound/MRI fusion versus ultrasound...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28394849/inhibition-of-voltage-gated-na-channels-by-bupivacaine-is-enhanced-by-the-adjuvants-buprenorphine-ketamine-and-clonidine
#8
Carsten Stoetzer, Christine Martell, Jeanne de la Roche, Andreas Leffler
BACKGROUND AND OBJECTIVES: Regional anesthesia includes application of local anesthetics (LAs) into the vicinity of peripheral nerves. Prolongation or improvement of nerve blocks with LAs can be accomplished by coapplication with adjuvants, including buprenorphine, ketamine, and clonidine. While the mechanisms mediating prolonged or improved LA-induced effects by adjuvants are poorly understood, we hypothesized that they are likely to increase LA-induced block of voltage-gated Na channels...
April 7, 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28394848/a-new-step-toward-evidence-of-in-vivo-perineural-dexamethasone-safety-an-animal-study
#9
Philippe Marty, Mehdi Bennis, Benjamin Legaillard, Etienne Cavaignac, Fabrice Ferre, Julie Lebon, Anne Brouchet, Vincent Minville
BACKGROUND AND OBJECTIVES: The aim of this study was to analyze histological nerve toxicity of perineural dexamethasone administration in combination with ropivacaine on mice. Efficacy of perineural dexamethasone in combination with regional anesthesia is clearly demonstrated. However, the safety of this procedure is still a matter of debate. METHODS: A sciatic nerve block was performed on 90 mice. Five groups, each containing 18 mice assigned randomly, were used in these experiments: the sham group (isotonic saline solution), R group (perineural ropivacaine), D group (perineural dexamethasone), RDPN group (perineural ropivacaine and perineural dexamethasone), and the RDS group (perineural ropivacaine and systemic dexamethasone)...
April 7, 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28388831/estrogen-signaling-is-necessary-for-exercise-mediated-enhancement-of-motoneuron-participation-in-axon-regeneration-after-peripheral-nerve-injury-in-mice
#10
Melina C Acosta, Patricia A Copley, Jamie R Harrell, Jennifer C Wilhelm
Thousands of people each year suffer from peripheral nerve injury. Treatment options are limited, and recovery is often incomplete. Treadmill exercise can enhance nerve regeneration; however, this appears to occur in a sex-dependent manner. Females respond best to short duration, high speed interval training; whereas, males respond best to slower, continuous training. Previous studies have shown a role for testosterone in this process, but the role of estrogen is unknown. To evaluate the role of estrogen signaling in treadmill exercise, we blocked estrogen receptor (ER) signaling during treadmill exercise in males and female wild type mice...
April 7, 2017: Developmental Neurobiology
https://www.readbyqxmd.com/read/28387892/anesthesia-and-analgesia-in-breast-surgery-the-benefits-of-peripheral-nerve-block
#11
L Calì Cassi, F Biffoli, D Francesconi, G Petrella, O Buonomo
Breast surgery is frequently associated with postoperative pain, nausea and vomiting, that result in increased patient's suffering, prolongation of hospital stays and related costs. Thoracic paravertebral nerve block (TPVB) is a viable option to the classic multimodal analgesia in breast surgery as it enhances surgical anesthesia and postoperative analgesia. In this review, we report the results of a number of studies on the role of TPVB in breast surgery. This technique is associated with a superior control of the pain, a reduction in opioids consumption after surgery, a decrease in postoperative nausea and vomiting, and an overall decrease in length of hospital stay...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28371877/comprehensive-analysis-of-13-897-consecutive-regional-anesthetics-at-an-ambulatory-surgery-center
#12
Randall J Malchow, Rajnish K Gupta, Yaping Shi, Matthew S Shotwell, Lisa M Jaeger, Clifford Bowens
Objective.:  The authors investigated a wide range of perioperative outcome measures in the context of a robust regional anesthesia practice. Design.:  Comprehensive review of a prospectively collected six-year database. Setting.:  Freestanding, academic ambulatory surgery center. Subjects.:  There were 13,897 consecutive regional anesthetics in 10,338 patients. Methods.:  We investigated patient satisfaction, postoperative nausea and vomiting (PONV), postoperative pain, catheter analgesia, and complications...
March 24, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28370691/anatomical-description-of-the-sciatic-nerve-block-at-the-subgluteal-region-in-a-neonatal-cadaver-population
#13
Adrienne A Acar, Adrian T Bösenberg, Albert-Neels van Schoor
INTRODUCTION: Sciatic nerve blocks provide intraoperative and prolonged postoperative pain management after lower limb surgery (posterior knee, foot, skin graft surgery). Accurate needle placement requires sound anatomical knowledge. Anatomical studies on children are uncommon; most have been performed on adult cadavers. We studied the location of the sciatic nerve at the gluteal level in neonatal cadavers to establish useful anatomical landmarks. METHODS: We identified the sciatic nerve in the gluteal and thigh region of 20 neonatal cadavers...
April 3, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28367293/thoracic-interfascial-nerve-block-for-breast-surgery-in-a-pregnant-woman-a-case-report
#14
Boohwi Hong, Seok-Hwa Yoon, Ann Misun Youn, Bum June Kim, Seunghyun Song, Yeomyung Yoon
Regional anesthesia for non-obstetric surgery in parturients is a method to decrease patient and fetal risk during general anesthesia. Thoracic interfascial nerve block can be used as an analgesic technique for surgical procedures of the thorax. The Pecs II block is an interfascial block that targets not only the medial and lateral pectoral nerves, but also the lateral cutaneous branch of the intercostal nerve. Pecto-intercostal fascial block (PIFB) targets the anterior cutaneous branch of the intercostal nerve...
April 2017: Korean Journal of Anesthesiology
https://www.readbyqxmd.com/read/28362032/randomized-comparative-study-of-the-effectiveness-of-three-different-techniques-of-interscalene-brachial-plexus-block-using-0-5-ropivacaine-for-shoulder-arthroscopy
#15
Michał Kolny, Michał J Stasiowski, Marek Zuber, Radosław Marciniak, Ewa Chabierska, Aleksandra Pluta, Przemysław Jałowiecki, Tomasz Byrczek
BACKGROUND: Interscalene brachial plexus block is an effective regional anesthesia technique for shoulder surgeries. The superiority of the popular ultrasound-guided blocks over peripheral nerve stimulator-confirmed blocks remains unclear. In this study the efficacy of these different block techniques was compared. METHODS: This prospective, randomized, clinical study included 109 patients (ASA grades I-III) who receive 20 mL 0.5% ropivacaine with ultrasound-guided blocks (U group), peripheral nerve stimulator-confirmed blocks (N group), or ultrasound-guided and peripheral nerve stimulator-confirmed blocks (dual guidance; NU group) for elective shoulder arthroscopy...
2017: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/28361032/radiographic-and-computed-tomography-monitoring-of-a-fractured-needle-fragment-in-the-mandibular-branch
#16
Maria Isabel de Oliveira E Britto Villalobos, Thaisa Cristina Gomes Ferreira Leite, Samila Gonçalves Barra, Daniela Teresa Pinto da Cunha Werneche, Flavio Ricardo Manzi, Claudia Assunção E Alves Cardoso
Some complications can arise with the usage of local anesthesia for dental procedures, including the fracture of needles in the patient. This is a rare incident, usually caused by the patient's sudden movements during anesthetic block. Its complications are not common, but can include pain, trismus, inflammation in the region, difficulty in swallowing, and migration of the object, which is the least common but has the ability to cause more serious damage to the patient. This report describes a case in which, after the fracture of the anesthetic needle used during alveolar nerve block for exodontia of the left mandibular third molar, the fragment moved significantly in the first 2 months, before stabilizing after the third month of radiographic monitoring...
March 2017: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28353306/anatomical-variations-of-the-sternal-angle-and-anomalies-of-adult-human-sterna-from-the-galloway-osteological-collection-at-makerere-university-anatomy-department
#17
Gonzaga Gonza Kirum, Ian Munabi, John Kukiriza, Gerald Tumusiime, Mesach Kange, Charles Ibingira, William Buwembo
BACKGROUND: Anatomical variations of the sternal angle and anomalies of the sternum are unique happenings of major clinical significance.It is known that misplaced sternal angles may lead to inaccurate counting of ribs and create challenges with intercostal nerve blocks and needle thoracostomies. Sternal foramina may pose a great hazard during sternal puncture, due to inadvertent cardiac or great vessel injury. These sternal variations and anomalies are rarely reported among Africans...
March 29, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/28353077/role-of-orexin-a-in-hypertension-and-obesity
#18
REVIEW
Imperatore Roberta, Palomba Letizia, Cristino Luigia
PURPOSE OF REVIEW: Hypertension is one of the most challenging health problems inducing cerebrovascular disease and high percentage of death when associated with diabetes, dyslipidemias, and obesity. Orexin/hypocretin is a peptide expressed by a small number of neurons of the dorsolateral hypothalamus, a brain feeding and autonomic "fight-or-flight" regulatory center. According to this function, orexin has been demonstrated to evoke cardiovascular responses, heart rate, hypertension, hyperarousal, hyperphagia, and obesity...
April 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/28326977/effects-of-buprenorphine-added-to-bupivacaine-infraorbital-nerve-blocks-on-isoflurane-minimum-alveolar-concentration-using-a-model-for-acute-dental-oral-surgical-pain-in-dogs
#19
Lindsey B C Snyder, Christopher J Snyder, Scott Hetzel
Bupivacaine appears to have a duration of action longer than previously reported. Results of this study demonstrate that the addition of buprenorphrine may enhance the analgesic duration of effect for bupivacaine regional nerve blocks. In addition, the use of bupivacaine alone may have analgesia that exceeds 24 hours in many cases. Although not statistically significant based on sample size, 50% of dogs receiving the bupivacaine/buprenorphine regional anesthetic block demonstrated a decreased anesthetic requirement 48 hours postadministration when compared to 25% of dogs receiving the bupivacaine anesthetic...
June 2016: Journal of Veterinary Dentistry
https://www.readbyqxmd.com/read/28306578/selective-low-volume-nerve-block-for-the-open-surgical-fixation-of-a-midshaft-clavicle-fracture-in-a-conscious-high-risk-patient-a-case-report
#20
Carlos I Salvadores de Arzuaga, José M Naya Sieiro, Oscar Salmeron Zafra, Miguel A González Posada, Esther Marquez Martínez
We report a case of successful intraoperative management using only low-volume regional anesthesia for the open surgical fixation of a traumatic clavicle fracture in a conscious 69-year-old man with severe chronic obstructive pulmonary disease. To avoid general anesthesia, we provided low-volume C5 and C6 nerve root blocks along with a superficial cervical plexus block using only 9 mL of anesthetic solution to avoid the often encountered complications of higher volume injections. Throughout the procedure, the patient remained comfortable and cooperative with stable hemodynamics and respiration...
March 16, 2017: A & A Case Reports
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