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Sciatic block

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https://www.readbyqxmd.com/read/27902645/effect-of-nerve-stimulation-use-on-the-success-rate-of-ultrasound-guided-subsartorial-saphenous-nerve-block-a-randomized-controlled-trial
#1
Shaylyn H Montgomery, Colleen M Shamji, Grace S Yi, Cynthia H Yarnold, Stephen J Head, Scott C Bell, Stephan K W Schwarz
BACKGROUND AND OBJECTIVES: Ultrasound-guided subsartorial saphenous nerve block is commonly used to provide complete surgical anesthesia of the foot and ankle in combination with a popliteal sciatic nerve block. However, in part owing to its small caliber and absence of a prominent vascular landmark in the subsartorial plane distal to the adductor canal, the saphenous nerve is more difficult to reliably block than the sciatic nerve in the popliteal fossa. Although the saphenous nerve is a sensory nerve only, neurostimulation can be used to elicit a "tapping" sensation on the anteromedial aspect of the lower leg extending toward the medial malleolus...
November 29, 2016: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/27872858/17%C3%AE-estradiol-promotes-schwann-cell-proliferation-and-differentiation-accelerating-early-remyelination-in-a-mouse-peripheral-nerve-injury-model
#2
Yan Chen, Wenjie Guo, Liangzhi Xu, Wenjuan Li, Meng Cheng, Ying Hu, Wenming Xu
Estrogen induces oligodendrocyte remyelination in response to demyelination in the central nervous system. Our objective was to determine the effects of 17β-estradiol (E2) on Schwann cell function and peripheral nerve remyelination after injury. Adult male C57BL/6J mice were used to prepare the sciatic nerve transection injury model and were randomly categorized into control and E2 groups. To study myelination in vitro, dorsal root ganglion (DRG) explant culture was prepared using 13.5-day-old mouse embryos...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27871591/continuous-intra-articular-local-anesthetic-drug-instillation-versus-discontinuous-sciatic-nerve-block-after-total-knee-arthroplasty
#3
Johannes Cip, Hedwig Erb-Linzmeier, Peter Stadlbauer, Christian Bach, Arno Martin, Reinhard Germann
STUDY OBJECTIVE: Sciatic nerve block (SNB) is commonly used as adjunct to femoralis nerve block (FNB) to achieve high-quality pain relief after total knee arthroplasty (TKA). However, this combination is associated with considerable muscle weakness, foot drop and surgically related nerve injuries may be masked. The purpose of this study was to assess whether low risk continuous intra-articular anesthetic drug instillation is an adequate alternative to SNB when adding to FNB after TKA...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27871553/fascia-iliaca-block-associated-only-with-deep-sedation-in-high-risk-patients-taking-p2y12-receptor-inhibitors-for-intramedullary-femoral-fixation-in-intertrochanteric-hip-fracture-a-series-of-3-cases
#4
Carlos Rodrigues Almeida, Emília Milheiro Francisco, Vítor Pinho-Oliveira, José Pedro Assunção
OBJECTIVE: We present a series of 3 cases in which the impact in outcome was, first of all, related to the capacity to offer early and safer treatment to some hip fracture high-risk patients using a fascia iliaca block (FIB; ropivacaine 0,5% 20 cc and mepivacaine 1,3% 15 cc, given 30 minutes before incision) associated only with deep sedation, contributing to better practice and outcome. CASE REPORTS: All elderly patients were American Society of Anesthesiologists IV patients, under P2Y12 receptor inhibitors, suffering from an intertrochanteric fracture, and purposed for intramedullary femoral fixation (IMF)...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27833045/reciprocal-relationship-between-membrane-type-1-matrix-metalloproteinase-and-the-algesic-peptides-of-myelin-basic-protein-contributes-to-chronic-neuropathic-pain
#5
Sanghyun Hong, Albert G Remacle, Sergei A Shiryaev, Wonjun Choi, Swathi Hullugundi, Jennifer Dolkas, Mila Angert, Tasuku Nishihara, Tony L Yaksh, Alex Y Strongin, Veronica I Shubayev
Myelin basic protein (MBP) is an auto-antigen able to induce intractable pain from innocuous mechanical stimulation (mechanical allodynia). The mechanisms provoking this algesic MBP activity remain obscure. Our present study demonstrates that membrane type 1 matrix metalloproteinase (MT1-MMP/MMP-14) releases the algesic MBP peptides from the damaged myelin, which then reciprocally enhance the expression of MT1-MMP in nerve to sustain a state of allodynia. Specifically, MT1-MMP expression and activity in rat sciatic nerve gradually increased starting at day 3 after chronic constriction injury (CCI)...
November 7, 2016: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/27824728/evidence-that-ldl-receptor-related-protein-1-acts-as-an-early-injury-detection-receptor-and-activates-c-jun-in-schwann-cells
#6
Andreas Flütsch, Kenneth Henry, Elisabetta Mantuano, Michael S Lam, Masataka Shibayama, Kazuhisa Takahashi, Steven L Gonias, Wendy M Campana
Schwann cells (SCs) detect injury to peripheral nerves and transform phenotypically to respond to injury and facilitate repair. Cell-signaling pathways and changes in gene expression that drive SC phenotypic transformation in injury have been described; however, the SC receptors that detect peripheral nervous system (PNS) injury have not been identified. LDL receptor-related protein 1 (LRP1) is a receptor for numerous ligands, including intracellular proteins released by injured cells and protein components of degenerated myelin...
December 14, 2016: Neuroreport
https://www.readbyqxmd.com/read/27816166/-perineural-dexmedetomidine-effects-on-sciatic-nerve-in-rat
#7
Abdulkadir Yektaş, Murat Çabalar, Mehmet Sar, Ayşin Alagöl, Duygu Sultan Çelik, Vildan Yayla, Deniz Tolga
The present study was designed to test the hypothesis that high dose dexmedetomidine would increase the duration of antinociception to a thermal stimulus in a rat model of sciatic nerve blockade without causing nerve damage. The rats were anesthetized with isoflurane. After electromyography (EMG) recordings, right sciatic nerves were explored and perineural injections were delivered: Group D (n=7), 40μgμgkg(-1) dexmedetomidine administration, Group II (n=6), (0.2mL) saline administration, Group III (n=2), only surgically exploration of the right sciatic nevre...
November 2, 2016: Revista Brasileira de Anestesiologia
https://www.readbyqxmd.com/read/27803817/ultrasound-guided-femoral-and-sciatic-nerve-blocks-for-repair-of-tibia-and-fibula-fractures-in-a-bennett-s-wallaby-macropus-rufogriseus
#8
Paolo Monticelli, Luis Campoy, Chiara Adami
Locoregional anesthetic techniques may be a very useful tool for the anesthetic management of wallabies with injuries of the pelvic limbs and may help to prevent capture myopathies resulting from stress and systemic opioids' administration. This report describes the use of ultrasound-guided femoral and sciatic nerve blocks in Bennett's wallaby (Macropus rufogriseus) referred for orthopaedic surgery. Ultrasound-guided femoral and sciatic nerve blocks were attempted at the femoral triangle and proximal thigh level, respectively...
2016: Case Reports in Anesthesiology
https://www.readbyqxmd.com/read/27792212/postoperative-analgesia-for-elective-total-knee-arthroplasty-under-subarachnoid-anesthesia-with-opioids-comparison-between-epidural-femoral-block-and-adductor-canal-block-techniques-with-and-without-perineural-adjuvants-a-prospective-randomized-clinical-trial
#9
José R Ortiz-Gómez, Marta Perepérez-Candel, José M Vázquez-Torres, José M Rodriguez-Del Río, Berta Torrón-Abad, Inocencia Fornet-Ruiz, Francisco J Palacio-Abizanda
BACKGROUND: Optimal control of acute postoperative pain and prevention of chronic persistent pain in total knee arthroplasty (TKA) remain a challenge. The main hypothesis was that nerve blocks improve postoperative analgesia especially if perineural adjuvants are added. METHODS: Immediate postoperative pain (24 h) was evaluated every hour in 639 patients using a verbal rating 11-point scale for patient self-reporting of pain (VRS-11). All patients received subarachnoid anesthesia and were randomly allocated in 8 groups: control group, epidural (EA) and single shots femoral (FNB) or adductor canal blocks (ACB), both with and without adjuvants: dexamethasone (+Dexa) or dexmedetomidine (+Dexm)...
October 28, 2016: Minerva Anestesiologica
https://www.readbyqxmd.com/read/27790556/efficacy-of-sciatic-nerve-block-for-pain-management-in-below-knee-orthopaedic-surgery
#10
Subhadra Arun Sinha, Sandeep Champalal Mutha, Deepak Sadashiv Phalgune
INTRODUCTION: Perioperative pain management is an integral part of anaesthesia and patients are most satisfied if there is minimal or no pain after surgery. Sciatic nerve block provides postoperative pain relief after below knee surgery and knee surgery. Many studies with different approaches for sciatic nerve block have been conducted to demonstrate the efficacy of sciatic nerve block with different local anaesthetic drugs over the past decade. AIM: To study the efficacy of single-shot sciatic nerve block for postoperative pain management in below knee orthopaedic surgery...
September 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27788593/paraquat-induces-peripheral-myelin-disruption-and-locomotor-defects-crosstalk-with-lxr-and-wnt-pathways
#11
Mehdi Hichor, Nirmal Kumar Sampathkumar, Julia Montanaro, Didier Borderie, Patrice X Petit, Victor Gorgievski, Eleni T Tzavara, Assaad Antoine Eid, Frederic Charbonnier, Julien Grenier, Charbel Massaad
AIMS: Paraquat (PQT), a redox-active herbicide, is a free radical producing molecule, causing damages particularly to the nervous system thus employed as an animal model for Parkinson's disease. However, its impact on peripheral nerve demyelination is still unknown. Our aim is to decipher the influence of PQT-induced ROS production on peripheral myelin. RESULTS: We report that PQT provokes severe locomotor and sensory defects in mice. PQT elicited an oxidative stress in the nerve, resulting in an increase of lipid peroxidation and protein carbonylation despite the induction of Nrf2-dependant antioxidant defenses...
October 27, 2016: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/27773221/3d-ultrasound-estimation-of-the-effective-volume-for-popliteal-block-at-the-level-of-division
#12
X Sala-Blanch, J Franco, R Bergé, R Marín, A M López, M Agustí
: Local anaesthetic injection between the tibial and commmon peroneal nerves within connective tissue sheath results in a predictable diffusion and allows for a reduction in the volume needed to achieve a consistent sciatic popliteal block. Using 3D ultrasound volumetric acquisition, we quantified the visible volume in contact with the nerve along a 5cm segment. METHODS: We included 20 consecutive patients scheduled for bunion surgery. Ultrasound guided popliteal block was performed using a posterior, out of plane approach at the level of división of the sciatic nerve...
October 20, 2016: Revista Española de Anestesiología y Reanimación
https://www.readbyqxmd.com/read/27746570/cold-bupivacaine-versus-magnesium-sulfate-added-to-room-temperature-bupivacaine-in-sonar-guided-femoral-and-sciatic-nerve-block-in-arthroscopic-anterior-cruciate-ligament-reconstruction-surgery
#13
Ashraf Elsayed Alzeftawy, Ahmad Ali El-Daba
BACKGROUND: Cooling of local anesthetic potentiates its action and increases its duration. Magnesium sulfate (MgSo4) added to local anesthetic prolongs the duration of anesthesia and postoperative analgesia with minimal side effects. AIM: The aim of this prospective, randomized, double-blind study was to compare the effect of cold to 4°C bupivacaine 0.5% and Mg added to normal temperature (20-25°C) bupivacaine 0.5% during sonar-guided combined femoral and sciatic nerve blocks on the onset of sensory and motor block, intraoperative anesthesia, duration of sensory and motor block, and postoperative analgesia in arthroscopic anterior cruciate ligament (ACL) reconstruction surgery...
September 2016: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/27746528/lower-limb-surgeries-under-combined-femoral-and-sciatic-nerve-block
#14
Lipsy Bansal, Joginder Pal Attri, Pawan Verma
INTRODUCTION: Peripheral nerve blocks are gaining popularity for many infraumblical surgeries with the development of new techniques such as ultrasound and peripheral nerve stimulator. It provides stable hemodynamic, better, and prolonged postoperative analgesia. This study was carried out to see the effectiveness of combined femoral and sciatic nerve block with ropivacaine alone and by adding fentanyl. MATERIALS AND METHODS: The study was carried out on 100 patients scheduled for lower limb surgeries and were randomly divided into two groups of 50 each...
September 2016: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/27739618/stimulating-trpv1-externalization-and-synthesis-in-dorsal-root-ganglion-neurons-contributes-to-pge2-potentiation-of-trpv1-activity-and-nociceptor-sensitization
#15
W Ma, B St-Jacques, U Rudakou, Y N Kim
BACKGROUND: Persistent peripheral sensitization contributes to chronic pain. Plasticity of nociceptive dorsal root ganglion (DRG) neurons (nociceptors) induced by pro-inflammatory mediators contributes to sensitization. Prostaglandin E2 (PGE2) enriched in injured tissues is known not only directly to sensitize DRG neurons, but also to potentiate sensitizing effects of other pain mediators such as capsaicin and its receptor transient receptor potential vanilloid-1 (TRPV1). It remains unknown whether PGE2 potentiates TRPV1 activity by stimulating its synthesis, cell surface and axonal trafficking in DRG neurons...
October 14, 2016: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/27707556/adductor-canal-block-and-lateral-approach-of-sciatic-nerve-block-at-the-midthigh-level
#16
Yasuhiro Morimoto, Tatsunori Haruoka
No abstract text is available yet for this article.
October 1, 2016: Acta Anaesthesiologica Taiwanica: Official Journal of the Taiwan Society of Anesthesiologists
https://www.readbyqxmd.com/read/27687448/the-effect-of-obesity-on-the-anatomical-relationship-of-the-popliteal-artery-and-tibial-nerve-in-the-proximal-and-distal-popliteal-fossa-relevance-to-popliteal-sciatic-nerve-block-and-a-traceback-technique-using-the-popliteal-artery
#17
Glenn E Woodworth, Jason Trujillo, Erik Foss, Michael Semenza
STUDY OBJECTIVE: To determine the effect of body mass index (BMI) on the relationship of the popliteal artery to the sciatic and tibial nerves in the popliteal fossa. DESIGN: Prospective, observational study. SETTING: University medical center. SUBJECTS: One hundred patients scheduled for magnetic resonance imaging scans of the knee. MEASUREMENTS: BMI was recorded and magnetic resonance imaging scans were assessed at 3 different measurement points along the femur for the distance and angle between the popliteal artery and tibial nerve, or sciatic nerve if the sciatic nerve had not bifurcated at the measurement point...
November 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27682287/postoperative-pain-relief-and-functional-outcome-following-total-knee-arthroplasty-a-prospective-comparative-audit-of-three-analgesic-regimes
#18
A Rajeev, N Tumia, K Karn, S Kashyap, D Mayne
Pain control plays a key role in joint-replacement -surgery. As a surgeon the challenge is to reduce pain to an acceptable level in the post-operative period. The aim of the study was to assess the efficacy of bolus -local anaesthesia, infusion in to the surgical site and nerve blocks with femoral nerve catheter and its functional outcome. A prospective audit of 114 patients undergoing total knee arthroplasty were carried out.The patients were divided in to three groups : Group 1 (n = 27) received a bolus injection of 20 ml 0...
August 2016: Acta Orthopaedica Belgica
https://www.readbyqxmd.com/read/27677086/-comparison-of-ultrasound-guided-femoral-and-sciatic-nerve-block-versus-epidural-anaesthesia-for-orthopaedic-surgery-in-dogs
#19
Mareike Arnholz, Stephan Hungerbühler, Clarissa Weil, Alexandra F Schütter, Karl Rohn, Julia Tünsmeyer, Sabine B R Kästner
OBJECTIVE: Comparison of ultrasound-guided femoral and sciatic nerve block versus epidural anaesthesia with bupivacaine and morphine for orthopaedic surgery of the pelvic limb in dogs with respect to analgesic effectiveness, clinical utility and side effects. MATERIAL AND METHODS: The study included 22 dogs (American Society of Anesthesiologists, ASA grades I and II) undergoing orthopaedic surgery distal to the mid-femoral bone. The study was designed as a randomized, prospective, blinded clinical trial...
September 27, 2016: Tierärztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
https://www.readbyqxmd.com/read/27662064/necrotizing-fasciitis-as-a-complication-of-a-continuous-sciatic-nerve-catheter-using-the-lateral-popliteal-approach
#20
Daltry Dott, Christopher Canlas, Christopher Sobey, William Obremskey, Andrew Brian Thomson
OBJECTIVE: Necrotizing fasciitis is an infection of the soft tissue that is characterized by rapidly spreading inflammation and subsequent necrosis. It is a rare complication of peripheral nerve blocks. We report a rare case of necrotizing fasciitis after placement of a peripheral nerve catheter. CASE REPORT: A 58-year-old woman presented for an elective right second metatarsal resection and received a sciatic nerve catheter for postoperative pain control. On postoperative day 7, clinical examination and imaging supported the diagnosis of necrotizing fasciitis...
November 2016: Regional Anesthesia and Pain Medicine
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