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https://www.readbyqxmd.com/read/28430317/treatment-of-central-venous-in-stent-restenosis-with-repeat-stent-deployment-in-hemodialysis-patients
#1
James Ronald, Bradley Davis, Carlos J Guevara, Waleska M Pabon-Ramos, Tony P Smith, Charles Y Kim
PURPOSE: To report patency rates for stent deployment for treatment of in-stent stenosis of the central veins of the chest in hemodialysis patients. MATERIALS AND METHODS: A retrospective analysis was performed on 29 patients who underwent 35 secondary percutaneous transluminal stent (PTS) deployments for in-stent stenosis within the central veins that were refractory to angioplasty and ipsilateral to a functioning hemodialysis access (in-stent PTS group). For comparison, patency data were acquired for 47 patients who underwent 78 successful percutaneous transluminal angioplasty (PTA) procedures for in-stent stenosis (in-stent PTA group) and 55 patients who underwent 55 stent deployments within native central vein stenosis refractory to angioplasty (native vein PTS group)...
April 20, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28427410/long-term-follow-up-after-stereotactic-radiosurgery-of-intracanalicular-acoustic-neurinoma
#2
Daniel Rueß, Lea Pöhlmann, Stefan Grau, Christina Hamisch, Alexandra Hellerbach, Harald Treuer, Martin Kocher, Maximilian I Ruge
BACKGROUND: The management of solely intracanalicular acoustic neurinoma (iAN) includes observation, microsurgical resection and radiation therapy. Treatment goals are long-term tumor control, hearing preservation and concurrently low side-effects. Stereotactic radiosurgery (SRS) has evolved as an alternative first-line treatment for small AN. Here we report about the long-term follow-up of a unique cohort of patients with iAN after LINAC or Cyberknife® based SRS. METHODS: In this single center retrospective analysis, we included all patients with iAN who underwent single session LINAC or Cyberknife® based SRS between 1993 and 2015, and who had a minimum follow-up period of six weeks...
April 21, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28424224/novel-strategies-to-reduce-femoropopliteal-restenosis-low-dose-paclitaxel-coated-balloons-and-paclitaxel-coated-balloons-plus-stenting
#3
Andrew M Goldsweig, Herbert D Aronow
Peripheral artery disease (PAD) affects more than 200 million individuals worldwide, and those with exertional leg discomfort, rest pain, and tissue or limb loss have significantly impaired functional status and quality of life. Despite their lower associated risk of repeat revascularization, open surgical procedures have been largely supplanted by endovascular intervention for symptomatic PAD given the lower associated morbidity and mortality. Although standalone plain-old percutaneous transluminal angioplasty (PTA) was previously the standard endovascular strategy for these patients, high procedural failure and restenosis rates led to the development of new therapeutic technologies...
April 19, 2017: Circulation
https://www.readbyqxmd.com/read/28424223/low-dose-paclitaxel-coated-versus-uncoated-percutaneous-transluminal-balloon-angioplasty-for-femoropopliteal-peripheral-artery-disease-1-year-results-of-the-illumenate-european-randomized-clinical-trial
#4
Henrik Schroeder, Martin Werner, Dirk-Roelfs Meyer, Peter Reimer, Karsten Krüger, Michael R Jaff, Marianne Brodmann
Background -Numerous studies have reported favorable outcomes using drug-coated balloons (DCBs) for treatment of symptomatic peripheral artery disease (PAD) of the superficial femoral and popliteal arteries. However, the treatment effect compared to an uncoated balloon has differed greatly amongst the randomized trials with better outcomes observed with higher-dose DCBs. This European trial was designed to assess the safety and effectiveness of a next-generation low dose (2 µg/mm(2) surface dose of paclitaxel) DCB...
April 19, 2017: Circulation
https://www.readbyqxmd.com/read/28423868/genetic-parameters-of-calving-ease-using-sire-maternal-grandsire-model-in-korean-holsteins
#5
Mahboob Alam, Choi Tae-Jeong, Choy Yun-Ho, Lee Jae-Gu, Kwang-Hyeon Cho, Chang Gwon Dang, Jae Gwan Choi, Mi Na Park, Seung Soo Lee
Objective: Calving ease (CE) is a complex reproductive trait of economic importance in dairy cattle. This study was aimed to investigate the genetic merits of CE for Holsteins in Korea. Methods: A total of 297,614 field records of CE, from 2000 to 2015, from first parity Holstein heifers were recorded initially. After necessary data pruning such as age at first calving (18-42 mo), gestation length, and presence of sire information, final datasets for CE consisted of 147,526 and 132,080 records for service sire calving ease (SCE) and daughter calving ease (DCE) evaluations, respectively...
April 19, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28419915/enhanced-imaging-of-lipid-rich-nanoparticles-embedded-in-methylcellulose-films-for-transmission-electron-microscopy-using-mixtures-of-heavy-metals
#6
Jalal Asadi, Sophie Ferguson, Hussain Raja, Christian Hacker, Phedra Marius, Richard Ward, Christos Pliotas, James Naismith, John Lucocq
Synthetic and naturally occurring lipid-rich nanoparticles are of wide ranging importance in biomedicine. They include liposomes, bicelles, nanodiscs, exosomes and virus particles. The quantitative study of these particles requires methods for high-resolution visualization of the whole population. One powerful imaging method is cryo-EM of vitrified samples, but this is technically demanding, requires specialized equipment, provides low contrast and does not reveal all particles present in a population. Another approach is classical negative stain-EM, which is more accessible but is difficult to standardize for larger lipidic structures, which are prone to artifacts of structure collapse and contrast variability...
April 10, 2017: Micron: the International Research and Review Journal for Microscopy
https://www.readbyqxmd.com/read/28415914/sealing-of-the-round-and-oval-window-niches-with-triamcinolone-soaked-fascia-as-salvage-surgical-therapy-in-sudden-sensorineural-hearing-loss
#7
Benjamin Loader, Rudolf Seemann, Claudia Atteneder, Elisabeth Sterrer, Peter Franz, Claudia Lill
CONCLUSIONS: Triamcinolone-soaked fascia seems to show better hearing improvement when added to tympanotomy for sudden idiopathic sensorineural hearing loss (SSHL), compared to fascia round window occlusion without triamcinolone. OBJECTIVES: To analyse if adding triamcinolone to sealing the round and oval window niches with fascia results in improved audiological outcome for acute SNHL. METHODS: Fifty-three patients (27m:43 ± 12 years, 26f:45 ± 14 years) with acute SSHL ≥50dB over 3 frequencies, who failed primary therapy, underwent transcanal tympanotomy...
April 18, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28415162/value-of-doppler-evaluation-of-physically-abnormal-fistula-hemodynamic-guidelines-and-access-outcomes
#8
Seong Cho, Yu-Ji Lee, Sung-Rok Kim
Background/Aims: The strategy of access care at out center involves the use of ultrasound (USG) in case of physical examination (PE) abnormality. USG determines the need of angiography. This study investigated the possible association between the need for percutaneous transluminal angioplasty (PTA) and hemodynamic parameters of USG. The study also assessed the effects of this monitoring strategy on outcomes in comparison with a historical control. Methods: A retrospective study of the medical records of 127 patients (65 PTA, 62 non-PTA) was conducted...
April 18, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28411244/long-term-follow-up-of-the-padi-trial-percutaneous-transluminal-angioplasty-versus-drug-eluting-stents-for-infrapopliteal-lesions-in-critical-limb-ischemia
#9
Marlon I Spreen, Jasper M Martens, Bob Knippenberg, Lukas C van Dijk, Jean-Paul P M de Vries, Jan Albert Vos, Gert Jan de Borst, Evert-Jan P A Vonken, Okker D Bijlstra, Jan J Wever, Randolph G Statius van Eps, Willem P Th M Mali, Hendrik van Overhagen
BACKGROUND: Clinical outcomes reported after treatment of infrapopliteal lesions with drug-eluting stents (DESs) have been more favorable compared with percutaneous transluminal angioplasty with a bailout bare metal stent (PTA-BMS) through midterm follow-up in patients with critical limb ischemia. In the present study, long-term results of treatment of infrapopliteal lesions with DESs are presented. METHODS AND RESULTS: Adults with critical limb ischemia (Rutherford category ≥4) and infrapopliteal lesions were randomized to receive PTA-BMS or DESs with paclitaxel...
April 14, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28401964/water-and-catalytic-isomerization-of-linear-allylic-alcohols-by-rucp-h2o-%C3%AE%C2%BAo-pta-2-pta-1-3-5-triaza-7-phosphaadamantane
#10
Franco Scalambra, Manuel Serrano-Ruiz, Antonio Romerosa
A new water soluble complex [RuCp(H2O-κO)(PTA)2](+) (1) (PTA = 1,3,5-triaza-7-phosphaadamantane) has been synthesized and fully characterized by NMR and IR. The crystal structure of 1(CF3SO3)·3.5H2O was characterized by single crystal X-ray determination. The catalytic activity of this complex was evaluated for the isomerisation of linear allylic alcohols from 3-buten-2-ol to 1-octen-3-ol into the correspondent ketones under both an inert atmosphere and in air, using as solvents: water, the substrate, mixtures of water/substrate, MeOH and mixtures of MeOH/water...
April 12, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28401160/posttransplant-anemia-as-a-prognostic-factor-of-mortality-in-kidney-transplant-recipients
#11
Maria Majernikova, Jaroslav Rosenberger, Lucia Prihodova, Miriam Jarcuskova, Robert Roland, Johan W Groothoff, Jitse P van Dijk
Background. Findings on the association between posttransplant anemia (PTA) and mortality in posttransplant patients are scarce. This study explored whether PTA shortly after kidney transplantation (KT) predicts mortality at up to 10 years' follow-up, stratified for chronic kidney disease (CKD) stages. Methods. PTA was divided into 3 categories according to the hemoglobin (Hb) value: severe (Hb < 10 g/dl), mild (10.0 g/dl ≤ Hb < 11.9 g/dl), or no PTA (Hb ≥ 12 g/dl). CKD stages were estimated using the CKD-EPI formula and divided into 2 groups: CKD1-2 and CKD3-5...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28400330/metabolomics-driven-approach-to-solving-a-coa-imbalance-for-improved-1-butanol-production-in-escherichia-coli
#12
Toshiyuki Ohtake, Sammy Pontrelli, Walter A Laviña, James C Liao, Sastia P Putri, Eiichiro Fukusaki
High titer 1-butanol production in Escherichia coli has previously been achieved by overexpression of a modified clostridial 1-butanol production pathway and subsequent deletion of native fermentation pathways. This strategy couples growth with production as 1-butanol pathway offers the only available terminal electron acceptors required for growth in anaerobic conditions. With further inclusion of other well-established metabolic engineering principles, a titer of 15g/L has been obtained. In achieving this titer, many currently existing strategies have been exhausted, and 1-butanol toxicity level has been surpassed...
April 8, 2017: Metabolic Engineering
https://www.readbyqxmd.com/read/28397567/framingham-risk-score-as-a-prognostic-predictor-of-sudden-sensorineural-hearing-loss-a-preliminary-study
#13
Young-Soo Chang, Ji Eun Choi, Jungmin Ahn, Nam-Gyu Ryu, Il Joon Moon, Sung Hwa Hong, Yang-Sun Cho, Won-Ho Chung
OBJECTIVES/HYPOTHESIS: Predicting the prognosis of idiopathic sudden sensorineural hearing loss (ISSHL) remains challenging. This investigation aimed to apply Framingham Risk Scores (FRS) to assess the combination of prognostic factors following ISSHL and investigate the predictive role of FRS in patients with multiple comorbidities including hypertension, diabetes, and hyperlipidemia. STUDY DESIGN: Retrospective study. METHODS: Twenty-one patients presenting with unilateral idiopathic sudden sensorineural hearing loss and multiple comorbidities were surveyed...
May 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/28395416/-application-of-percutaneous-angiojet-thrombectomy-in-patients-with-acute-symptomatic-portal-and-superior-mesenteric-venous-thrombosis
#14
J H Song, X He, W S Lou, L Chen, G P Chen, H B Su, W Y Shi, T Wang, B X Zhao, J P Gu
Objective: To evaluate the clinical value of percutaneous AngioJet thrombectomy in treatment of acute symptomatic portal and superior mesenteric venous thrombosis venous thrombosis (PVMVT) . Method: From January 2014 to January 2016, a total of 8 patients in Nanjing First Hospital with PVMVT verified by color Doppler ultrasound and computed tomographic angiography (CTA) were analyzed retrospectively. Under ultrasound guidance , the branch of the right portal vein(PV) was punctured with a micropuncture set and a 4-F infusion catheter was advanced to the superior mesenteric vein(SMV)...
April 4, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28393052/comparison-of-temporalis-fascia-and-full-thickness-cartilage-palisades-in-type-i-underlay-tympanoplasty-for-large-subtotal-perforations
#15
Pradeep Pradhan, Abhimanyu Anant, Vellore-Pattabhiram Venkatachalam
INTRODUCTION: To demonstrate surgical techniques and to compare the anatomical and functional outcomes between temporalis fascia and cartilage palisade grafting in type-I underlay tympanoplasty in patients with large/subtotal perforation. MATERIALS AND METHODS: Temporalis fascia and cartilage palisade grafting were conducted in Group A and Group B, respectively, each containing 30 patients with large/subtotal perforations. Pure tone audiogram (PTA) and speech reception thresholds (SRT) were performed preoperatively and at each postoperative visit; i...
March 2017: Iranian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28393000/clinical-experience-with-ultrasound-guided-angioplasty-for-vascular-access
#16
Seong Cho, Yu-Ji Lee, Sung-Rok Kim
BACKGROUND: The use of ultrasound guided percutaneous transluminal angioplasty (UG-PTA), which use ultrasound as an imaging modality, is an evolving strategy. But, in Korea, this method is rarely used. We report our experiences with UG-PTA with respect to technical success rates and complication rates compared to conventional PTA (C-PTA), performed between 2010 and 2015 at Samsung Changwon Hospital, Korea. METHODS: In our series, 53 cases of UG-PTA and 90 cases of C-PTA were reviewed, respectively...
March 2017: Kidney Research and Clinical Practice
https://www.readbyqxmd.com/read/28392693/sustained-release-of-anticancer-agent-phytic-acid-from-its-chitosan-coated-magnetic-nanoparticles-for-drug-delivery-system
#17
Farahnaz Barahuie, Dena Dorniani, Bullo Saifullah, Sivapragasam Gothai, Mohd Zobir Hussein, Ashok Kumar Pandurangan, Palanisamy Arulselvan, Mohd Esa Norhaizan
Chitosan (CS) iron oxide magnetic nanoparticles (MNPs) were coated with phytic acid (PTA) to form phytic acid-chitosan-iron oxide nanocomposite (PTA-CS-MNP). The obtained nanocomposite and nanocarrier were characterized by powder X-ray diffraction, Fourier transform infrared spectroscopy, vibrating sample magnetometry, transmission electron microscopy, and thermogravimetric and differential thermogravimetric analyses. Fourier transform infrared spectra and thermal analysis of MNPs and PTA-CS-MNP nanocomposite confirmed the binding of CS on the surface of MNPs and the loading of PTA in the PTA-CS-MNP nanocomposite...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28390607/endoscopic-middle-ear-exploration-in-pediatric-patients-with-conductive-hearing-loss
#18
John M Carter, Stephen R Hoff
OBJECTIVE: To describe our indications, findings, and outcomes for transcanal endoscopic middle ear exploration in pediatric patients with conductive hearing loss of unknown etiology, without effusions. METHODS: Prospective case series for all pediatric patients undergoing totally endoscopic transcanal middle ear exploration between April 2012 and October 2015 at a pediatric tertiary care referral hospital. Demographic data, operative findings, and hearing results were reviewed...
May 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28388853/psychometrically-equivalent-bisyllabic-words-for-speech-recognition-threshold-testing-in-vietnamese
#19
Richard W Harris, David L McPherson, Claire M Hanson, Dennis L Eggett
OBJECTIVE: This study identified, digitally recorded, edited and evaluated 89 bisyllabic Vietnamese words with the goal of identifying homogeneous words that could be used to measure the speech recognition threshold (SRT) in native talkers of Vietnamese. DESIGN: Native male and female talker productions of 89 Vietnamese bisyllabic words were recorded, edited and then presented at intensities ranging from -10 to 20 dBHL. Logistic regression was used to identify the best words for measuring the SRT...
April 7, 2017: International Journal of Audiology
https://www.readbyqxmd.com/read/28388214/pta-scale-for-children-aged-4-to-7-years-selecting-developmentally-valid-and-reliable-items
#20
Suncica Lah, Pamela David, Hayley Donohue, Adrienne Epps, Robyn Tate, Naomi Brookes
The aim of this study was to select developmentally valid and reliable items for inclusion in criterion-referenced (pass > 90%) posttraumatic amnesia (PTA) scale for children aged 4 to 7 years in a prospective cohort study. Fifty-two typically developing children (26 male/26 female) aged 4 to 7 years were administered a set of 10 items (5 orientation, 5 memory) over 3-4 days. The total score obtained on the set of 10 items had poor developmental validity and test-retest reliability. Nevertheless, individual item analysis identified five items (three orientation and two memory items) that were consistently passed by >90% of the children on each day of testing...
April 7, 2017: Applied Neuropsychology. Child
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