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peripheral ultrasound

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https://www.readbyqxmd.com/read/28203193/recurrent-uveal-effusion-after-laser-iridotomy
#1
Hiroshi Sakai, Michiko Yonahara, Miyako Sakai
A 59-year-old woman was seen by an ophthalmologist for blurred vision, ocular pain, headache, and nausea. She was diagnosed with acute primary angle closure (APAC) and successfully treated with medications. Using ultrasound biomicroscopy (UBM), engorged episcleral vein was observed and small uveal effusion was diagnosed after laser peripheral iridotomy (LPI). The uveal effusion disappeared and was again diagnosed by UBM together with anterior segment inflammation with ocular pain. Iritis caused by LPI after APAC might be a cause of uveal effusion in this specific case...
January 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28186603/-prenatal-genetic-analysis-of-two-fetuses-with-miller-dieker-syndrome
#2
Shaobin Lin, Yanmin Luo, Jianzhu Wu, Baojiang Chen, Yuanjun Ji, Yi Zhou
OBJECTIVE: To perform molecular cytogenetic study on two fetuses with abnormal ultrasound findings and analyze their genotype-phenotype correlation. METHODS: G-banded karyotyping, single nucleotide polymorphism array (SNP array) and fluorescence in situ hybridization (FISH) were performed on amniotic fluid cells from both fetuses and peripheral blood samples from their parents. Results of SNP array were analyzed with bioinformatics software. RESULTS: G-banded karyotyping failed to detect any abnormalities in both fetuses and their parents...
February 10, 2017: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
https://www.readbyqxmd.com/read/28185241/safe-performance-of-peripheral-regional-anaesthesia-the-significance-of-ultrasound-guidance
#3
EDITORIAL
P Marhofer, G Fritsch
No abstract text is available yet for this article.
February 10, 2017: Anaesthesia
https://www.readbyqxmd.com/read/28184270/randomized-comparison-of-popliteal-sciatic-perineural-catheter-tip-migration-and-dislocation-in-a-cadaver-model-using-two-catheter-designs
#4
Lauren Steffel, Steven K Howard, Lindsay Borg, Edward R Mariano, Jody C Leng, T Edward Kim
BACKGROUND: New catheter-over-needle (CON) technology for continuous peripheral nerve blockade has emerged, but its effect on the risk of perineural catheter tip dislocation is unknown. Less flexible catheters may be more likely to migrate away from the nerve with simulated patient movement. In the present study, we evaluated catheter tip migration between CON catheters and traditional catheter-through-needle (CTN) catheters during ultrasound-guided short-axis in-plane (SAX-IP) insertion...
February 2017: Korean Journal of Anesthesiology
https://www.readbyqxmd.com/read/28178149/combination-of-general-anesthesia-and-peripheral-nerve-block-with-low-dose-ropivacaine-reduces-postoperative-pain-for-several-days-after-outpatient-arthroscopy-a-randomized-controlled-clinical-trial
#5
Benedikt Büttner, Ashham Mansur, José Hinz, Joachim Erlenwein, Martin Bauer, Ingo Bergmann
BACKGROUND: Effective methods for postoperative pain relief are an important concern in outpatient surgery. For arthroscopies we combine a single-shot peripheral nerve block using low-volume, low-concentration ropivacaine with general anesthesia. We hypothesized that the patients would have less postoperative pain and be more rapidly home ready than after general anesthesia alone. METHODS: Patients (American Society of Anesthesiologists I-III, 18-80 years old) scheduled for outpatient arthroscopy on the upper or lower extremity were randomized to have either a combination of peripheral nerve block and general anesthesia (NB + GA, study group) or general anesthesia alone (GA, control group)...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28177181/radial-endobronchial-ultrasound-for-the-diagnosis-of-peripheral-pulmonary-lesions-a-systematic-review-and-meta-analysis
#6
REVIEW
Muhammad S Ali, William Trick, Benjamin I Mba, Divyanshu Mohananey, Jaskaran Sethi, Ali I Musani
Tissue diagnosis of peripheral pulmonary lesions (PPLs) can be challenging. In the past, flexible bronchoscopy was commonly performed for this purpose but its diagnostic yield is suboptimal. This has led to the development of new bronchoscopic modalities such as radial endobronchial ultrasound (R-EBUS), electromagnetic navigation bronchoscopy (ENB) and virtual bronchoscopy (VB). We performed this meta-analysis using data from previously published R-EBUS studies, to determine its diagnostic yield and other performance characteristics...
February 8, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28174191/augmentation-of-muscle-blood-flow-by-ultrasound-cavitation-is-mediated-by-atp-and-purinergic-signaling
#7
J Todd Belcik, Brian P Davidson, Aris Xie, Melinda D Wu, Mrinal Yadava, Yue Qi, Sherry Liang, Chae Ryung Chon, Azzdine Y Ammi, Joshua Field, Leanne Harmann, William M Chilian, Joel Linden, Jonathan R Lindner
BACKGROUND: - Augmentation of tissue blood flow by therapeutic ultrasound is thought to rely on convective shear. Microbubble contrast agents that undergo ultrasound-mediated cavitation markedly amplify these effects. We hypothesized that purinergic signalling is responsible for shear-dependent increases in muscle perfusion during therapeutic cavitation. METHODS: -Unilateral exposure of the proximal hindlimb of mice (with or without ischemia produced by iliac ligation) to therapeutic ultrasound (1...
February 7, 2017: Circulation
https://www.readbyqxmd.com/read/28168804/review-of-axillary-lesions-emphasising-some-distinctive-imaging-and-pathology-findings
#8
REVIEW
Amber Gupta, Cecily Metcalf, Donna Taylor
The axilla is often included on mammography, ultrasound (US), CT and MRI. Axillary masses can arise from any of the tissue components present in this region including breast parenchyma. Aetiologies include: lymphadenopathy due to inflammation, malignancy and degenerative causes; soft tissue tumours such as haemangioma, lymphangioma, peripheral nerve sheath tumours and lipomas; post-surgical complications such as seroma, lymphocoele and haematoma; lesions arising in accessory breast tissue such as fibroadenoma and carcinoma...
February 7, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28166067/ultrasound-guided-femoral-nerve-block-to-provide-analgesia-for-positioning-patients-with-femur-fracture-before-subarachnoid-block-comparison-with-intravenous-fentanyl
#9
S Ranjit, B B Pradhan
Background Positioning patients with fractured femur for subarachnoid block is painful. Intravenous analgesics or peripheral nerve block like femoral nerve block or fascia iliaca compartment block are some of the available techniques to reduce pain. We compared the efficacy of femoral nerve block and intravenous fentanyl in providing effective analgesia before positioning for subarachnoid block. Objective This study was designed to compare between ultrasound guided femoral nerve block with lignocaine and intravenous fentanyl in providing effective analgesia before positioning patient with femur fracture in sitting position for subarachnoid block...
April 2016: Kathmandu University Medical Journal (KUMJ)
https://www.readbyqxmd.com/read/28165578/a-randomized-study-of-training-with-large-versus-small-vessel-size-on-successful-ultrasound-guided-peripheral-venous-access
#10
Joshua Davis, Timothy Faust, Azeem Tajani, Amanda Bates, Jenna Jarriel, Arthur Au, Jason Matthew Fields
PURPOSE: Our objective was to investigate whether training on phantoms with smaller or larger vessels would improve success rate in novice medical students learning this skill. METHODS: Medical students who participated in a voluntary, extracurricular ultrasound training day were asked to participate in the study as part of their procedural training. They were given a standardized education and demonstration of how to use ultrasound to place a peripheral intravenous (IV) catheter...
January 31, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28164672/circulating-endothelial-progenitor-cells-were-increased-in-patients-with-thin-cap-fibroatheroma
#11
Qiang Tan, Qingsheng Wang, Shuangyue Zhang, Ximing Qi, Yang Li
BACKGROUND: We used virtual histology-intravascular ultrasound (VH-IVUS) to evaluate the relationship between circulating endothelial progenitor cells (EPC) and thin-cap fibroatheroma (TCFA). METHODS: This study included 52 patients with unstable angina who underwent coronary angiography and IVUS examination. Patients were divided into a TCFA group (n = 21) or a non-TCFA group (n = 31) based on VH-IVUS performance. Before angiography, peripheral blood levels of EPC were measured by flow cytometry...
November 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28163172/endovascular-management-of-para-prosthetic-aortocaval-fistula-case-report-and-systematic-review-of-the-literature
#12
Claudio Bianchini Massoni, Giulia Rossi, Tiziano Tecchio, Paolo Perini, Antonio Freyrie
The aim of this article is to report a case of asymptomatic para-anastomotic aortocaval fistula (ACF) treated by endovascular aortic repair, and to review data of the literature on arteriovenous fistulae (AVF) secondary to abdominal aortic surgery. A 78-year-old male complained of worsening pain in the right lower limb since 2 months. He presented a history of right femoro-popliteal bypass for peripheral arterial occlusive disease and elective surgical treatment for a non-ruptured infrarenal aortic aneurysm (Dacron tube graft)...
February 2, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28161919/cysts-of-the-iris-pigment-epithelium-what-is-new-and-interesting-the-2016-jose-rizal-international-medal-lecture
#13
REVIEW
Jerry A Shields, Carol L Shields
PURPOSE: Cysts of the iris pigment epithelium (IPE) can involve the pupillary margin, midzone, or peripheral location or can be free-floating in the aqueous or vitreous or lodged in the anterior chamber angle. Avariant of IPE cyst, known as iris flocculi, can be a marker for systemic thoracic aneurysm. DESIGN: Review of IPE cysts and description of new observations of the lesions. METHODS: Review of IPE cysts. RESULTS: Lesions in 672 eyes were classified as of the pupillary margin (n = 49; 7%), midzone (n = 188; 28%), peripheral (n = 424; 63%), or dislodged/free-floating (n = 11; 2%)...
January 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/28160364/peripheral-nerve-stimulation-of-brachial-plexus-nerve-roots-and-supra-scapular-nerve-for-chronic-refractory-neuropathic-pain-of-the-upper-limb
#14
Bénédicte Bouche, Marie Manfiotto, Philippe Rigoard, Jean Lemarie, Véronique Dix-Neuf, Michel Lanteri-Minet, Denys Fontaine
OBJECTIVES: We report the outcome of a consecutive series of 26 patients suffering from chronic medically-refractory neuropathic pain of the upper limb (including 16 patients with complex regional pain syndrome), topographically limited, treated by brachial plexus (BP) nerve roots or supra-scapular nerve (SSN) peripheral nerve stimulation (PNS). MATERIALS AND METHODS: The technique consisted in ultrasound-guided percutaneous implantation of a cylindrical lead (Pisces-Quad, Medtronic) close to the SSN or the cervical nerve roots within the BP, depending on the pain topography...
February 3, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28159810/impaired-peripheral-vasodilation-during-graded-systemic-hypoxia-in-healthy-older-adults-role-of-the-sympathoadrenal-system
#15
Jennifer C Richards, Anne R Crecelius, Dennis G Larson, Gary J Luckasen, Frank A Dinenno
Systemic hypoxia is a physiological and pathophysiological stress that activates the sympathoadrenal system and, in young adults, leads to peripheral vasodilation. We tested the hypothesis that peripheral vasodilation to graded systemic hypoxia is impaired in older healthy adults and that this age-associated impairment is due to attenuated β-adrenergic mediated vasodilation and elevated α-adrenergic vasoconstriction. Forearm blood flow was measured (Doppler ultrasound) and vascular conductance (FVC) was calculated in 12 young (24±1 yrs) and 10 older (63±2 yrs) adults to determine the local dilatory responses to graded hypoxia (90, 85, and 80% O2 saturations) in control conditions, following local intra-arterial blockade of β-receptors (propranolol), and combined blockade of α+β receptors (phentolamine + propranolol)...
February 3, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28151818/the-effect-of-fixation-technique-on-continuous-interscalene-nerve-block-catheter-success-a-randomized-double-blind-trial
#16
David B Auyong, David Asher Cantor, Cynthia Green, Neil A Hanson
BACKGROUND: Continuous peripheral nerve blocks offer advantages over single-injection blocks, including extended analgesia and reduction in opioid consumption. These benefits require that the perineural catheter remain intact for the duration of the planned local anesthetic infusion. Mechanical displacement of catheters, leaking, and consequent failure are known complications. The aim of this study was to evaluate continuous perineural catheter tip-to-nerve apposition in vivo over 48 hours comparing 2 different simple fixation strategies...
March 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28149581/recent-advances-in-diagnostic-bronchoscopy
#17
REVIEW
Philip G Ong, Labib G Debiane, Roberto F Casal
The field of diagnostic bronchoscopy has been revolutionized in the last decade primarily with the advent of endobronchial ultrasound (EBUS) but also with the addition of multiple different techniques for "guided-bronchoscopy". These advances have had a substantial impact in the management of lung cancer with bronchoscopy now providing both diagnosis and mediastinal staging in a single procedure. EBUS has, in fact, become the first choice for staging of the mediastinum over cervical mediastinoscopy (CM). Although EBUS is now a well-established technique, there are continuous efforts from the scientific community to improve its diagnostic performance, and these will be reviewed in this manuscript...
December 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28144062/role-of-radial-endobronchial-ultrasound-guided-transbronchial-needle-aspiration-in-the-diagnosis-of-pulmonary-nodules-case-report-and-literature-review
#18
Sahajal Dhooria, Inderpaul Singh Sehgal, Nalini Gupta, Ashutosh Nath Aggarwal, Digambar Behera, Ritesh Agarwal
The diagnosis of pulmonary nodules can be made using several methods including computed tomography (CT)-guided fine-needle aspiration (FNA), radial endobronchial ultrasound (EBUS)-guided sampling techniques (transbronchial lung biopsy [TBLB], transbronchial brush, bronchoalveolar lavage, or transbronchial needle aspiration [TBNA]), or occasionally with convex probe (CP) EBUS-TBNA. While CT-guided FNA is associated with a high (25%) rate of pneumothorax, the CP-EBUS cannot reach lesions beyond the interlobar region...
January 2017: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/28144060/radial-endobronchial-ultrasound-for-the-diagnosis-of-bronchoscopically-invisible-lesions-first-case-series-from-india
#19
Kedar Ravi Hibare, Rajiv Goyal, Chetan Nemani, Rao Avinash, Bajpai Ram, Batra Ullas
BACKGROUND: A peripheral, bronchoscopically invisible pulmonary lesion is a diagnostic challenge. Transthoracic needle aspiration has long been the investigation of choice but runs the risk of pneumothorax (up to 44%). Newer technologies like radial endobronchial ultrasound (R-EBUS) offer a safer approach. We present our results of R-EBUS in the diagnosis of bronchoscopically invisible lesions. This is the first large case series from India. AIMS: (1) To determine the yield of R-EBUS for the diagnosis of bronchoscopically invisible lesions...
January 2017: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/28142366/benign-peripheral-nerve-sheath-tumor-in-a-distance-runner
#20
Laura E Stanley, David J Berkoff
A 31-year-old female runner presented to physical therapy via direct access with an 8-month history of atraumatic left lateral calf pain. Following 1 month of physical therapy, the patient was referred to an orthopaedic sports medicine physician. Ultrasound imaging revealed a 2-cm hypoechoic mass with well-defined margins in the left proximal lateral soleus, while Doppler ultrasound demonstrated increased color flow surrounding the mass. Magnetic resonance imaging findings were consistent with a nerve sheath tumor, and ultrasound-guided tissue biopsy determined the mass to be a benign peripheral nerve sheath tumor...
February 2017: Journal of Orthopaedic and Sports Physical Therapy
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