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https://www.readbyqxmd.com/read/27932205/cold-induced-sympathetic-tone-modifies-the-impact-of-endothelium-dependent-vasodilation-in-the-finger-pulp
#1
Tone Kristin Bergersen, Maria Skytioti, Maja Elstad
OBJECTIVE: In thermoneutral and cold subjects, the sympathetic nervous system regulates skin blood flow by adjusting frequency of the tonic vasoconstrictor impulses. However, the way these thermoregulatory impulses influence the vascular endothelium is not well known. We studied how the sympathetic nervous system influences endothelium-dependent vasodilation (EDV) caused by shear stress in skin containing arteriovenous anastomoses (AVAs) and arterioles in healthy subjects. METHODS: Thirteen healthy subjects were exposed to thermoneutral (29°C) and cold (22°C) ambient temperatures on separate days...
November 30, 2016: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/27919594/clinical-audit-and-national-survey-on-the-assessment-of-collateral-circulation-before-radial-forearm-free-flap-harvest
#2
Anwer Abdullakutty, Mandeep S Bajwa, Sonum Patel, Jacob D'Souza
Controversy exists regarding the use of Duplex Ultrasound (DUS) in addition to the Modified Allen's Test (MAT) for the assessment of collateral circulation prior to elevation of the Radial Forearm Free Flap (RFFF). A survey amongst members of BAOMS Head & Neck Oncology Subspecialty Interest Group and a completed local audit was undertaken to assess the need for DUS. Data for the initial audit was collected retrospectively between 2010 and 2013. Both MAT and DUS was performed routinely during this period. The results of the survey and initial audit led to a change in practice and DUS was no longer requested...
November 2, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/27917559/prognostic-value-of-nerve-ultrasound-and-electrophysiological-findings-in-saturday-night-palsy
#3
Antonios Kerasnoudis, Panagiota Ntasiou, Efthymia Ntasiou
BACKGROUND AND PURPOSE: We report on the prognostic role of the cross-sectional area (CSA) enlargement and conduction block (CB) in radial neuropathy (Saturday night palsy [SNP]). METHODS: Reference CSA values were defined in 30 healthy subjects. Twenty-four patients with SNP underwent evaluation (Thessaloniki Hypesthesia Score [THS], Medical Research Council [MRC], ultrasound, electrophysiology). All patients were followed up 3 months after initial presentation...
December 5, 2016: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/27915136/dynamics-of-two-interacting-bubbles-in-a-nonspherical-ultrasound-field
#4
Jinfu Liang, Xun Wang, Jing Yang, Lunxun Gong
In this paper, we present and analyze a model of the oscillations of a pair of gas bubbles driven by nonspherical ultrasound. We derived our model based on the perturbation and potential flow theories and use it to study three cases of oscillation of two bubbles under driving ultrasound with different initial phases, different separation distances between the bubbles and different sound pressure amplitudes. For the driving ultrasound with different initial phases, we obtain the in-phase and anti-phase radial pulsations of the bubbles in incompressible liquid...
November 22, 2016: Ultrasonics
https://www.readbyqxmd.com/read/27915068/effects-of-the-pulsed-ultrasound-therapy-on-sensory-nerve-conduction-parameters-and-the-pain-threshold-perceptions-in-humans
#5
Othmar Schuhfried, Damir Vukanovic, Christian Kollmann, Karin Pieber, Tatjana Paternostro-Sluga
BACKGROUND: Therapeutic ultrasound is a often used clinical modality in the non-surgical treatment of entrapment neuropathies. To date the possible mechanism of action of pulsed ultrasound therapy on the peripheral nerve in the treatment of entrapment neuropathies is unclear. OBJECTIVE: To examine the effects of pulsed ultrasound therapy on peripheral nerve conduction parameters. DESIGN: A prospective, randomized, single blind, cross-over study...
November 30, 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/27904260/sonographic-identification-of-peripheral-nerves-in-the-forearm
#6
Saundra A Jackson, Charlotte Derr, Anthony De Lucia, Marvin Harris, Zuheily Closser, Branko Miladinovic, Rahul Mhaskar, Theresa Jorgensen, Lori Green
BACKGROUND: With the growing utilization of ultrasonography in emergency medicine combined with the concern over adequate pain management in the emergency department (ED), ultrasound guidance for peripheral nerve blockade in ED is an area of increasing interest. The medical literature has multiple reports supporting the use of ultrasound guidance in peripheral nerve blocks. However, to perform a peripheral nerve block, one must first be able to reliably identify the specific nerve before the procedure...
October 2016: Journal of Emergencies, Trauma, and Shock
https://www.readbyqxmd.com/read/27902608/transient-ulnar-artery-compression-facilitates-transradial-access
#7
Zhi-Ming Zhou, Zhen-Xian Yan, Bin Nie, Yong-He Guo, Yu-Jie Zhou
BACKGROUND: Unsuccessful radial artery puncture is one of the important causes of transradial procedure failure. Ulnar artery compression made the radial artery pulse stronger. Whether it would make transradial access easier, however, is uncertain. METHODS: A prospective randomized controlled trial was conducted among 446 patients who planned for transradial cardiac catheterization. Patients were randomized to receiving either transient ulnar artery compression (UC) or standard treatment (standard) for half an hour prior to needle insertion (217 UC, 229 standard)...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27900711/lacertus-fibrosus-augmentation-for-distal-biceps-brachii-rupture-repair-surgical-technique
#8
M Fontana, A Trimarchi, A Colozza
BACKGROUND: Repair of distal biceps tendon ruptures has become widely accepted. Unfortunately, care of retracted-degenerated injuries remains a challenge for orthopedic surgeons. Complication rates appear to increase when surgery is performed in chronic cases compared to those operated acutely. Multiple techniques for chronic reconstruction with the use of grafts have been described. Recently Morrey, from the Mayo Clinic, proposed a direct anatomic repair of retracted distal biceps tendon ruptures in extreme flexion (60°-90°) to avoid grafting...
December 2016: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/27894283/small-lung-lesions-invisible-under-fluoroscopy-are-located-accurately-by-three-dimensional-localization-technique-on-chest-wall-surface-and-performed-bronchoscopy-procedures-to-increase-diagnostic-yields
#9
Chaosheng Deng, Xiaoming Cao, Dawen Wu, Haibo Ding, Ruixiong You, Qunlin Chen, Linying Chen, Xin Zhang, Qiaoxian Zhang, Yongquan Wu
BACKGROUND: Nowadays, small peripheral pulmonary lesions (PPLs) are frequently detected and the prognosis of lung cancer depends on the early diagnosis. Because of the high fee and requiring specialized training, many advanced techniques are not available in many developing countries and rural districts. METHODS: Three sets of opaque soft copper wires visible under the fluoroscopy (Flu) in the Flu-flexible bronchoscopy (FB) group (n = 24), which determined the three planes of the lesion, were respectively placed firmly on the surface of the chest wall with adhesive tape on the chest wall...
November 29, 2016: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/27870560/effect-of-prenatal-versus-postnatal-vitamin-d-deficiency-on-pulmonary-structure-and-function-in-mice
#10
Ammar Saadoon, Namasivayam Ambalavanan, Kurt Zinn, Ambika P Ashraf, Mark MacEwen, Teodora Nicola, Michelle V Fanucchi, William T Harris
Epidemiologic studies have linked gestational vitamin D deficiency to respiratory diseases, although mechanisms have not been defined. We hypothesized that antenatal vitamin D deficiency would impair airway development and alveolarization in a mouse model. We studied the effect of antenatal vitamin D deficiency by inducing vitamin D deficiency in pregnant mice and then compared lung development and function in their offspring to littermate controls. Postnatal vitamin D deficiency and sufficiency models from each group were also studied...
November 21, 2016: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/27865181/radial-artery-diameter-does-not-correlate-with-body-mass-index-a-duplex-ultrasound-analysis-of-1706-patients-undergoing-trans-radial-catheterization-at-three-experienced-radial-centers
#11
Surya Dharma, Sasko Kedev, Tejas Patel, Sunil V Rao, Olivier F Bertrand, Ian C Gilchrist
BACKGROUND: We examined whether the radial artery diameter is correlated with body mass index (BMI) in patients undergoing transradial catheterization. METHODS: 1706 patients undergoing trans-radial catheterization at three experienced, high-volume, radial centers were analyzed. Radial and ulnar artery diameters were determined by ultrasound in the distal third of the forearm one day post procedure. Pearson correlation test was used to measure the relationship between continuous variables...
November 11, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27842902/pseudoaneurysm-after-transpedal-arterial-access-for-evaluation-and-treatment-of-peripheral-arterial-disease
#12
Apurva Patel, Roosha Parikh, Yili Huang, Michael Liou, Justin Ratcliffe, Olivier F Bertrand, Joseph Puma, Tak W Kwan
BACKGROUND: There has been an increasing use of transpedal arterial access (TPA) for evaluation and treatment of peripheral arterial disease (PAD) over a transfemoral approach (TFA). TPA, it is expected to be associated with better patient comfort, less recovery time and possibly less access site complications compared to standard TFA. Access site complications and pseudoaneurysm (PSA) associated with the TPA have not been previously reported. OBJECTIVE: Here we report a series of pedal artery PSA related to access site complicating TPA catheterization...
October 17, 2016: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/27832420/disruption-of-bioresorbable-vascular-scaffold-struts-due-to-loss-of-radial-integrity-insights-from-optical-coherence-tomography
#13
Ana Rita Ramalho, João Silva Marques, Guilherme Mariano Pêgo
Strut disruption of bioresorbable vascular scaffold is a known potential concern, although uncommon when adequate lesion preparation is achieved and nominal size of the scaffold is respected. It is usually difficult to detect with angiography and/or intravascular ultrasound. Three-dimensional reconstructions of optical coherence tomography facilitates understanding of complex luminal anatomy and configuration of stent struts, providing evaluation of stent integrity immediately after deployment and therefore optimization of the complex revascularization procedure...
November 10, 2016: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/27832231/radial-probe-ebus-for-the-diagnosis-of-peripheral-pulmonary-lesions
#14
Marcia Jacomelli, Sergio Eduardo Demarzo, Paulo Francisco Guerreiro Cardoso, Addy Lidvina Mejia Palomino, Viviane Rossi Figueiredo
Objective: Conventional bronchoscopy has a low diagnostic yield for peripheral pulmonary lesions. Radial-probe EBUS employs a rotating ultrasound transducer at the end of a probe that is passed through the working channel of the bronchoscope. Radial-probe EBUS facilitates the localization of peripheral pulmonary nodules, thus increasing the diagnostic yield. The objective of this study was to present our initial experience using radial-probe EBUS in the diagnosis of peripheral pulmonary lesions at a tertiary hospital...
July 2016: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/27831815/localization-of-peripheral-pulmonary-lesions-using-a-method-of-combining-analysis-of-chest-computed-tomographic-imaging-with-radial-probe-endobronchial-ultrasound-imaging
#15
Pichapong Tunsupon, Kassem Harris
No abstract text is available yet for this article.
November 2016: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/27831802/reply-localization-of-peripheral-pulmonary-lesions-using-a-method-of-combining-analysis-of-chest-computed-tomographic-imaging-with-radial-probe-endobronchial-ultrasound-imaging
#16
Alexander C Chen
No abstract text is available yet for this article.
November 2016: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/27829723/radial-artery-pseudoaneurysm-a-rare-complication-after-a-single-arterial-puncture-for-blood-gas-analysis
#17
Kajal Nitin Patel, Shruti P Gandhi, Harsh C Sutariya
With a reported incidence of 0.048%, radial artery pseudoaneurysm (PA) is a rare but serious complication of arterial cannulation. We report a case of PA developing after a single puncture of the right radial artery for arterial blood-gas analysis diagnosed by Doppler ultrasound in young male patient. The development of PA after puncture of radial artery for continuous blood pressure monitoring and serial blood-gas analysis has been reported in the past; however, to the best of our knowledge, there is only one case report of development of PA after a single arterial puncture for blood-gas analysis is reported in the past...
October 2016: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/27815334/effect-of-long-term-administration-of-nicorandil-on-endothelial-function-of-the-radial-artery-in-patients-with-angina-undergoing-transradial-percutaneous-coronary-intervention
#18
Yanming Fan, Xianghua Fu, Yanbo Wang, Wei Li, Xile Bi, Liye Wei, Yuyang Xiao, Shiru Bai
We evaluated the effect of long-term administration of nicorandil on endothelial function of the radial artery in patients with angina undergoing elective transradial coronary intervention (TRI). A total of 127 patients were randomly assigned to nicorandil (standard medication plus nicorandil 5 mg twice daily, n = 64) or control group (standard medication except nicorandil, n = 63) immediately after TRI procedure. Radial artery diameter (RAD), flow-mediated dilation (FMD), and nitroglycerin-mediated dilation (NMD) of radial artery were measured 1 day before TRI as well as 1 day and 3 months after TRI by Ultrasound-Doppler...
November 4, 2016: Angiology
https://www.readbyqxmd.com/read/27812747/wave-intensity-analysis-in-mice-age-related-changes-in-wia-peaks-and-correlation-with-cardiac-indexes
#19
Nicole Di Lascio, Claudia Kusmic, Francesco Stea, Francesco Faita
Mouse models are increasingly employed in the comprehension of cardiovascular disease. Wave Intensity Analysis (WIA) can provide information about the interaction between the vascular and the cardiac system. We investigate age-associated changes in WIA-derived parameters in mice and correlate them with biomarkers of cardiac function. Sixteen wild-type male mice were imaged with high-resolution ultrasound (US) at 8 weeks (T 0) and 25 weeks (T 1) of age. Carotid pulse wave velocity (PWV) was calculated from US images using the diameter-velocity loop and employed to evaluate WIA...
November 3, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27809899/prenatal-sonographic-diagnosis-of-fetal-valproate-syndrome-a-case-report
#20
Norihiko Kikuchi, Satoshi Ohira, Ryoichi Asaka, Kyoko Tanaka, Akiko Takatsu, Tanri Shiozawa
BACKGROUND: Prenatal exposure of mother to valproate (VPA) causes teratogenic effects in the fetus, namely fetal valproate syndrome (FVS). We report a case of fetal valproate syndrome rarely diagnosed by prenatal sonographic examination. CASE PRESENTATION: Our patient was a female infant who was born to a 27-year-old nulliparous Japanese woman with epilepsy. The mother was diagnosed with infantile epilepsy at 1 year of age and had been using three antiepileptic drugs, including valproate, but preconceptional counseling was not performed...
November 3, 2016: Journal of Medical Case Reports
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