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Ultrasound block

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https://www.readbyqxmd.com/read/28427411/tendon-motion-tracking-in-an-ultrasound-image-sequence-using-optical-flow-based-block-matching
#1
Bo-I Chuang, Jian-Han Hsu, Li-Chieh Kuo, I-Ming Jou, Fong-Chin Su, Yung-Nien Sun
BACKGROUND: Tendon motion, which is commonly observed using ultrasound imaging, is one of the most important features used in tendinopathy diagnosis. However, speckle noise and out-of-plane issues make the tracking process difficult. Manual tracking is usually time consuming and often yields inconsistent results between users. METHODS: To automatically track tendon motion in ultrasound images, we developed a new method that combines the advantages of optical flow and multi-kernel block matching...
April 20, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28425388/lower-bound-on-estimation-variance-of-the-ultrasonic-attenuation-coefficient-using-the-spectral-difference-reference-phantom-method
#2
Kayvan Samimi, Tomy Varghese
Ultrasonic attenuation is one of the primary parameters of interest in Quantitative Ultrasound (QUS). Non-invasive monitoring of tissue attenuation can provide valuable diagnostic and prognostic information to the physician. The Reference Phantom Method (RPM) was introduced as a way of mitigating some of the system-related effects and biases to facilitate clinical QUS applications. In this paper, under the assumption of diffuse scattering, a probabilistic model of the backscattered signal spectrum is used to derive a theoretical lower bound on the estimation variance of the attenuation coefficient using the Spectral-Difference RPM...
May 2017: Ultrasonic Imaging
https://www.readbyqxmd.com/read/28423126/chronic-atrial-fibrillation-ablation-with-harmonic-scalpel-during-mitral-valve-surgery
#3
Alexandre Visconti Brick, Domingo M Braile
Objective: To evaluate surgical treatment of chronic atrial fibrillation with ultrasound in patients with mitral valve disease, considering preoperative clinical characteristics of patients undergoing surgical procedure and follow-up in the immediate postoperative period, in hospital and up to 60 months after discharge. Methods: We studied 100 patients with chronic atrial fibrillation and mitral valve disease who underwent surgical treatment using ultrasound ablation...
January 2017: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28422871/ultrasound-versus-fluoroscopy-guided-medial-branch-block-for-the-treatment-of-lower-lumbar-facet-joint-pain-a-retrospective-comparative-study
#4
Seung Hoon Han, Ki Deok Park, Kyoung Rai Cho, Yongbum Park
The aim of this study was to compare the mid-term effects and benefits of ultrasound (US)-guided and fluoroscopy (FL)-guided medial branch blocks (MBBs) for chronic lower lumbar facet joint pain through pain relief, functional improvement, and injection efficiency evaluation.Patients with chronic lumbar facet joint pain who received US (n = 68) or FL-guided MBBs (n = 78) were included in this retrospective study. All procedures were performed under FL or US guidance. Complication frequency, therapeutic effects, functional improvement, and the injection efficiency of MBBs were compared at 1, 3, and 6 months after the last injection...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28421316/comparison-of-the-coracoid-and-retroclavicular-approaches-for-ultrasound-guided-infraclavicular-brachial-plexus-block
#5
Nilgun Kavrut Ozturk, Ali Sait Kavakli
PURPOSE: This prospective randomized study compared the coracoid and retroclavicular approaches to ultrasound-guided infraclavicular brachial plexus block (IBPB) in terms of needle tip and shaft visibility and quality of block. We hypothesized that the retroclavicular approach would increase needle tip and shaft visibility and decrease the number of needle passes compared to the coracoid approach. METHODS: A total of 100 adult patients who received IBPB block for upper limb surgery were randomized into two groups: a coracoid approach group (group C) and a retroclavicular approach group (group R)...
April 18, 2017: Journal of Anesthesia
https://www.readbyqxmd.com/read/28420906/comparison-of-ultrasound-and-ultrasound-plus-nerve-stimulator-guidance-axillary-plexus-block
#6
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
#7
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/28413429/falling-under-the-umbrella-cells-a-single-institutional-experience-and-literature-review-of-urothelial-carcinoma-presenting-as-a-primary-pancreatic-mass-on-endoscopic-ultrasound-guided-fine-needle-aspiration
#8
Michael Chambers, Konrad Krall, Shantel Hébert-Magee
Metastases to the pancreas are much less common than primary pancreatic lesions, and there are few reports in the literature of metastatic urothelial carcinoma (UC) found in the pancreas. We report two cases of metastatic UC mimicking a primary pancreatic lesion. Two female patients, aged 48 and 83 years, presented with isolated pancreatic lesions causing obstructive jaundice suspicious for pancreatic adenocarcinoma and underwent endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) with rapid on-site evaluation (ROSE)...
2017: CytoJournal
https://www.readbyqxmd.com/read/28413286/transversus-abdominis-plane-catheters-for-postoperative-pain-relief-in-pediatric-patients
#9
Sumitra G Bakshi, Jeson R Doctor, Bhakti D Trivedi, Sajid S Qureshi
Regional techniques provides excellent post operative pain relief in pediatric patients. Transversus abdominis plane (TAP) block is a newer regional technique available. Though there is emerging evidence proving the efficacy of TAP blocks, there is limited literature on use of TAP catheters in pediatric patients. TAP catheters were placed in two children following laparotomy with transverse incisions and in both epidural was avoided, with good post operative pain relief. Ultrasound guidance was used in one child, while in the other the catheter was placed under direct vision after dissection of the plane between transversus abdominis and internal oblique...
January 2017: Journal of Anaesthesiology, Clinical Pharmacology
https://www.readbyqxmd.com/read/28408712/peritoneal-dialysis-catheter-surgery-using-transversus-abdominis-plane-block
#10
Dean Markić, Božidar Vujičić, Mladen Ivanovski, Kristian Krpina, Antun Gršković, Dražen Rahelić, Nino Rubinić, Željko Župan, Hrvoje Lasić, Mauro Materljan, Sanjin Rački
♦Background: Peritoneal dialysis (PD) catheter surgery can be performed using regional anesthesia. We present our PD catheter placement and extraction experience using ultrasound-guided transversus abdominis plane (TAP) block. ♦ Methods: In the present study, we analyzed 74 patients from our center with end-stage renal disease (ESRD) who underwent PD catheter placement (60 patients) and removal (14 patients) using a TAP block between June 2011 and December 2015. ♦ Results: The TAP block was successful for 55/60 (91...
April 13, 2017: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/28405040/a-dose-finding-randomised-controlled-trial-of-magnesium-sulphate-as-an-adjuvant-in-ultrasound-guided-supraclavicular-brachial-plexus-block
#11
Versha Verma, Shelly Rana, Sudarshan Kumar Chaudhary, Jai Singh, Ravinder Kumar Verma, Saloni Sood
BACKGROUND AND AIM: Magnesium sulphate (MgSO4) has been used as an adjuvant in brachial plexus block with encouraging results; however, there is no consensus regarding its optimal dose. Thereby, we compared the efficacy of two doses of MgSO4 as an adjuvant in ultrasound (USG) guided supraclavicular brachial plexus block. METHODS: Ninety patients, aged 20-60 years, belonging to American Society of Anesthesiologists physical status 1 or 2, were given USG-guided supraclavicular block...
March 2017: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/28404008/surgery-versus-conservative-management-for-recurrent-and-ongoing-left-sided-diverticulitis-direct-trial-an-open-label-multicentre-randomised-controlled-trial
#12
Bryan J M van de Wall, Marguerite A W Stam, Werner A Draaisma, R Stellato, Willem A Bemelman, Marja A Boermeester, Ivo A M J Broeders, Eric J Belgers, Boudewijn R Toorenvliet, Hubert A Prins, Esther C J Consten
BACKGROUND: Patients with recurrent or persisting complaints after an episode of left-sided diverticulitis are managed with either conservative measures or elective sigmoidectomy. To date, there are no data from randomised trials. We aimed to establish which treatment leads to a better quality of life for patients with diverticulitis. METHODS: We did an open-label, multicentre, randomised controlled trial (DIRECT trial) in 24 teaching and two academic hospitals in the Netherlands...
January 2017: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28403412/reduced-hemidiaphragmatic-paresis-with-extrafascial-compared-with-conventional-intrafascial-tip-placement-for-continuous-interscalene-brachial-plexus-block-a-randomized-controlled-double-blind-trial
#13
E Albrecht, I Bathory, N Fournier, A Jacot-Guillarmod, A Farron, R Brull
Background.: The incidence of hemidiaphragmatic paresis with continuous interscalene brachial plexus block (CISB) can approach 100%. We tested the hypothesis that extrafascial placement of the catheter tip reduces the rate of hemidiaphragmatic paresis compared with intrafascial tip placement for CISB while providing effective analgesia. Methods.: Seventy patients undergoing elective major shoulder surgery under general anaesthesia were randomized to receive an ultrasound-guided CISB plexus block for analgesia with the catheter tip placed either within (intrafascial group) or immediately outside (extrafascial group) the brachial plexus sheath midway between the levels of C5 and C6...
April 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28403100/delayed-bilateral-vocal-cord-paresis-after-a-continuous-interscalene-brachial-plexus-block-and-endotracheal-intubation-a-lesson-why-we-should-use-low-concentrated-local-anesthetics-for-continuous-blocks
#14
Hee-Sun Park, Ha-Jung Kim, Young-Jin Ro, Hong-Seuk Yang, Won-Uk Koh
RATIONALE: Recurrent laryngeal nerve block is an uncommon complication that can occur after an interscalene brachial plexus block (ISB), which may lead to vocal cord palsy or paresis. However, if the recurrent laryngeal nerve is blocked in patients with a preexisting contralateral vocal cord palsy following neck surgery, this may lead to devastating acute respiratory failure. Thus, ISB is contraindicated in patients with contralateral vocal cord lesion. To the best of our knowledge, there are no reports of bilateral vocal cord paresis, which occurred after a continuous ISB and endotracheal intubation in a patient with no history of vocal cord injury or surgery of the neck...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28399532/metastatic-pituitary-carcinoma-to-cervical-lymph-node-diagnosis-by-fine-needle-aspiration-and-review-of-the-literature
#15
Huiying Wang, Jiancong Liang, William H Yong, Peggy Sullivan
BACKGROUND: Pituitary carcinomas are rare neoplasms whose designation requires demonstration of metastatic disease. No specific morphologic features can reliably distinguish pituitary carcinomas from pituitary adenomas, rendering the diagnosis particularly challenging. Furthermore, as reports of pituitary carcinoma on fine needle aspiration (FNA) biopsy are exceedingly rare in the literature, the cytological features of pituitary carcinoma are poorly characterized. CASE REPORT: Here we describe a case of pituitary carcinoma in a 67-year-old woman with history of recurrent adrenocorticotropic hormone (ACTH)-producing pituitary adenoma who presented with a persistent left cervical nodule for 2 years...
April 12, 2017: Acta Cytologica
https://www.readbyqxmd.com/read/28399044/red-meat-consumption-and-cardiovascular-target-organ-damage-from-the-strong-heart-study
#16
Bernhard Haring, Wenyu Wang, Amanda Fretts, Daichi Shimbo, Elisa T Lee, Barbara V Howard, Mary J Roman, Richard B Devereux
OBJECTIVE: The aim of this study was to investigate whether red meat consumption is related to changes in left ventricular mass (LVM), left atrial diameter and carotid atherosclerosis in American Indians. METHODS: We prospectively analyzed echocardiographic and carotid ultrasound data of 1090 adults aged 40 years and older enrolled in the Strong Heart Family Study who were free of cardiovascular disease at baseline - 535 (49%) were hypertensive and 555 (51%) participants were nonhypertensive...
April 10, 2017: Journal of Hypertension
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
#17
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/28390284/well-balanced-system-for-coronary-calcium-detection-and-volume-measurement-in-a-low-resolution-intravascular-ultrasound-videos
#18
Sumit K Banchhor, Narendra D Londhe, Tadashi Araki, Luca Saba, Petia Radeva, John R Laird, Jasjit S Suri
BACKGROUND: Accurate and fast quantitative assessment of calcium volume is required during the planning of percutaneous coronary interventions procedures. Low resolution in intravascular ultrasound (IVUS) coronary videos poses a threat to calcium detection causing over-estimation in volume measurement. We introduce a correction block that counter-balances the bias introduced during the calcium detection process. METHOD: Nineteen patients image dataset (around 40,090 frames), IRB approved, were collected using 40MHz IVUS catheter (Atlantis® SR Pro, Boston Scientific®, pullback speed of 0...
March 30, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28389063/a-novel-transperitoneal-abdominal-wall-nerve-block-for-postoperative-pain-in-laparoscopic-colorectal-surgery
#19
Jun Nagata, Jun Watanabe, Yusuke Sawatsubashi, Masaki Akiyama, Koichi Arase, Noritaka Minagawa, Takayuki Torigoe, Kotaro Hamada, Yoshifumi Nakayama, Keiji Hirata
BACKGROUND: Although the laparoscopic approach reduces pain associated with abdominal surgery, postoperative pain remains a problem. Ultrasound-guided rectus sheath block and transversus abdominis plane block have become increasingly popular means of providing analgesia for laparoscopic surgery. METHODS: Ninety patients were enrolled in this study. A laparoscopic puncture needle was inserted via the port, and levobupivacaine was injected into the correct plane through the peritoneum...
April 4, 2017: Asian Journal of Surgery
https://www.readbyqxmd.com/read/28386682/-update-in-neuroanesthesiology-key-publications
#20
V-S Eckle, G Schneider
One of the aims of the Scientific Working Group Neuroanesthesia (WAKNA) of the German Society of Anesthesiology and Intensive Care Medicine is to disseminate new findings in the field of neuroscience and neuroanesthesia and to propagate novel therapeutic and diagnostic options into clinical practice. Once a year, the WAKNA displays and discusses recent noteworthy publications from the past 12 months at the German Anesthesia Meeting. In 2016, a new pharmacologic strategy with dexmedetomidine to prevent postoperative pain after craniotomy, the impact of the widely used anesthetic drug propofol on GABA receptor surface expression, a study highlighting the ultrasound-guided detection of increased intracranial pressure, and an article showing the interactions of neuromuscular blocking drugs on the BIS neuromonitoring were presented...
April 6, 2017: Der Anaesthesist
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