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https://www.readbyqxmd.com/read/29223114/regional-conduction-velocity-calculation-from-clinical-multichannel-electrograms-in-human-atria
#1
Bhawna Verma, Tobias Oesterlein, Axel Loewe, Armin Luik, Claus Schmitt, Olaf Dössel
BACKGROUND: During atrial fibrillation, heterogeneities and anisotropies result in a chaotic propagation of the depolarization wavefront. The electrophysiological parameter called conduction velocity (CV) influences the propagation pattern over the atrium. We present a method that determines the regional CV for deformed catheter shapes, which result due to the catheter movement and changing wall contact. METHODS: The algorithm selects stable catheter positions, finds the local activation times (LAT), considers the wall contact and calculates all CV estimates within the area covered by the catheter...
November 26, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/29223104/improvement-of-relative-survival-in-elderly-patients-with-acute-myeloid-leukaemia-emerging-from-population-based-cancer-registries-in-switzerland-between-2001-and-2013
#2
Annatina Schnegg-Kaufmann, Anita Feller, Helen Baldomero, Alicia Rovo, Markus G Manz, Michael Gregor, Anna Efthymiou, Mario Bargetzi, Urs Hess, Olivier Spertini, Yves Chalandon, Jakob R Passweg, Georg Stussi, Volker Arndt, Nicolas Bonadies
Acute Myeloid Leukaemia (AML) is a rare and heterogeneous haematological malignancy with increasing incidence in the elderly. We performed a population-based, observational analysis of AML cases reported to the Cantonal Cancer Registries in Switzerland. Data was aggregated by the National Institute for Epidemiology and Cancer Registration and stratified for the two time periods 2001-2007 and 2008-2013. Overall, 2351 new AML cases were registered with a stable age-standardised incidence rate (3.0 [95 CI: 2.8-3...
December 6, 2017: Cancer Epidemiology
https://www.readbyqxmd.com/read/29223069/neuropsychological-and-clinical-heterogeneity-of-cognitive-impairment-in-patients-with-multiple-system-atrophy
#3
Lorena Broseghini Barcelos, Flávia Saad, Carla Giacominelli, Roberta Arb Saba, Patrícia Maria de Carvalho Aguiar, Sonia Maria Azevedo Silva, Vanderci Borges, Paulo Henrique Ferreira Bertolucci, Henrique Ballalai Ferraz
OBJECTIVE: We evaluated neuropsychological tests to compare cognitive impairment between two types of multiple system atrophy: predominant parkinsonism (MSA-P) and predominant cerebellar ataxia (MSA-C). PATIENTS AND METHODS: This cross-sectional study included 14 patients diagnosed with MSA: four with MSA-C and ten with MSA-P. Presence of motor symptoms was determined by using the Unified Rating MSA Scale (URMSAS). Non-motor symptoms were evaluated by the Short Form Health Survey (SF-36), Scales for Outcomes in Parkinson's disease Autonomic (SCOPA-AUT), Hospital Anxiety and Depression Scale (HADS), and Beck Depression Inventory (BDI)...
October 31, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29222992/inflammatory-chemokine-eotaxin-1-is-correlated-with-age-in-heroin-dependent-patients-under-methadone-maintenance-therapy
#4
Hsiang-Wei Kuo, Tung-Hsia Liu, Hsiao-Hui Tsou, Ya-Ting Hsu, Sheng-Chang Wang, Chiu-Ping Fang, Chia-Chen Liu, Andrew C H Chen, Yu-Li Liu
BACKGROUND: Degeneration of central neurons and fibers has been observed in postmortem brains of heroin dependent patients. However, there are no biomarkers to predict the severity of neurodegeneration related to heroin dependence. A correlation has been reported between inflammatory C-C motif chemokine ligand 11 (CCL11, or eotaxin-1) and neurodegeneration in Alzheimer's disease. METHODS: Three-hundred-forty-four heroin dependent, Taiwanese patients under methadone maintenance treatment (MMT) were included with clinical assessment and genomics information...
November 28, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/29222954/evaluation-of-motion-artifact-metrics-for-coronary-ct-angiography
#5
Hongfeng Ma, Eric Gros, Aniko Szabo, Scott G Baginski, Zachary R Laste, Naveen M Kulkarni, Darin Okerlund, Taly G Schmidt
PURPOSE: This study quantified the performance of coronary artery motion artifact metrics relative to human observer ratings. Motion artifact metrics have been used as part of motion correction and best-phase selection algorithms for Coronary Computed Tomography Angiography (CCTA). However, the lack of ground truth makes it difficult to validate how well the metrics quantify the level of motion artifact. This study investigated five motion artifact metrics, including two novel metrics, using a dynamic phantom, clinical CCTA images, and an observer study that provided ground truth motion artifact scores from a series of pairwise comparisons...
December 9, 2017: Medical Physics
https://www.readbyqxmd.com/read/29222875/the-incidence-and-outcomes-of-delayed-response-to-cardiac-resynchronization-therapy
#6
Kebei Li, Zhiyong Qian, Xiaofeng Hou, Yao Wang, Yuanhao Qiu, Yufeng Sheng, Xuesong Qian, Yong Zhou, Jiangang Zou
BACKGROUND: The incidence and clinical outcomes of delayed response to cardiac resynchronization therapy (CRT) have not been well clarified. We aimed to observe the incidence and prognosis of delayed response and to identify its possible mechanisms. METHODS: A total of 115 CRT patients were retrospectively analyzed in our study. Patients who met the enrollment criteria were divided into 2 groups: group A, conventional responders who showed response at 1-year follow-up, and group B, delayed responders who showed response after 1-year follow-up...
December 9, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29222872/comparison-of-therapeutic-effects-of-egfr-tyrosine-kinase-inhibitors-on-19del-and-l858r-mutations-in-advanced-lung-adenocarcinoma-and-effect-on-cellular-immune-function
#7
Juan Zhou, Suqin Ben
BACKGROUND: We compared the therapeutic effect of EGFR-tyrosine kinase inhibitors (TKIs) on 19Del and L858R mutations in advanced lung adenocarcinoma on cellular immune function and explored the factors influencing the curative effect and prognosis. METHODS: Clinical efficacy in the selected 71 patients with lung adenocarcinoma, including 52 patients with 19Del and L858R mutations and 19 wild type patients treated with EGFR-TKIs was retrospectively analyzed. The response rate (RR), disease control rate (DCR), progression-free survival (PFS), overall survival (OS), and cellular immune function were analyzed...
December 9, 2017: Thoracic Cancer
https://www.readbyqxmd.com/read/29222861/zero-fluoroscopy-permanent-pacemaker-implantation-using-ensite-navx-system-clinical-viability-or-fanciful-technique
#8
Ping Guo, Jie Qiu, Yan Wang, Guangzhi Chen, Riccardo Proietti, Al-Selmi Fadhle, Chunxia Zhao, Dao Wen Wang
BACKGROUND: Fluoroscopy is the imaging modality routinely used for cardiac device implantation and electrophysiological procedures. Due to the rising concern regarding the harmful effects of radiation exposure to both the patients and operation staffs, novel 3D mapping systems have been developed and implemented in electrophysiological procedure for the navigation of catheters inside the heart chambers. Their applicability in cardiac device implantation has been rarely reported. Our aim is to evaluate the feasibility and safety of permanent pacemaker implantation without fluoroscopy...
December 9, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29222833/association-between-measures-of-treatment-quality-and-disease-progression-in-prostate-cancer-radiotherapy-an-exploratory-analysis-from-the-trog-03-04-radar-trial
#9
Marco Marcello, Martin A Ebert, Annette Haworth, Allison Steigler, Angel Kennedy, Max Bulsara, Rachel Kearvell, David J Joseph, James W Denham
INTRODUCTION: Quality assurance methods are incorporated into multicentre radiotherapy clinical trials for ensuring consistent application of trial protocol and quantifying treatment uncertainties. The study's purpose was to determine whether post-treatment disease progression is associated with measures of the quality of radiotherapy treatment. METHODS: The TROG 03.04 RADAR trial tested the impact of androgen deprivation on prostate cancer patients receiving dose-escalated external beam radiation therapy...
December 8, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/29222825/outcome-of-sonography-based-minimally-invasive-surgery-for-deep-infiltrating-endometriosis-of-the-ureter-and-urinary-bladder-a-retrospective-cohort-study
#10
Gernot Hudelist, Ayman Tammaa, Kristine Aas-Eng, Lisa Kirchner, Nadja Fritzer, Zoltan Nemeth, Michael Lamche
INTRODUCTION: To evaluate the accuracy of transvaginal sonography for preoperative detection of bladder endometriosis and surgical outcomes regarding fertility and pain symptoms of women with urinary tract endometriosis. MATERIAL AND METHODS: Retrospective cohort study of consecutive patients with urinary tract endometriosis undergoing laparoscopic partial cystectomy and/or ureterolysis/decompression, ureteric resection and end-to-end anastomosis or ureteroneocystostomy for ureteral stenosis and hydronephrosis...
December 8, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/29222809/effect-of-abutment-height-on-interproximal-implant-bone-level-in-the-early-healing-a-randomized-clinical-trial
#11
Juan Blanco, Alexandre Pico, Leticia Caneiro, Lourdes Nóvoa, Pilar Batalla, Pablo Martín-Lancharro
OBJECTIVE: The aim of this randomized clinical trial was to compare the effect on the interproximal implant bone loss (IBL) of two different heights (1 and 3 mm) of definitive abutments placed at bone level implants with a platform switched design. MATERIAL AND METHODS: Twenty-two patients received forty-four implants (6.5-10 mm length and 3.5-4 mm diameter) to replace at least two adjacent missing teeth, one bridge set to each patient-two implants per bridge...
December 8, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29222766/electrical-velocimetry-for-non-invasive-monitoring-of-the-closure-of-the-ductus-arteriosus-in-preterm-infants
#12
Ana Rodríguez Sánchez de la Blanca, M Sánchez Luna, N González Pacheco, M Arriaga Redondo, N Navarro Patiño
Closure of a patent ductus arteriosus (PDA) in preterm infants modifies cardiac output and induces adaptive changes in the hemodynamic situation. The present study aims to analyze those changes, through a non-invasive cardiac output monitor based on blood electrical velocimetry, in preterm babies. A prospective observational study of preterm infants with a gestational age of less than 28 weeks, and a hemodynamic significant PDA, requires intravenous ibuprofen or surgical closure. All patients were monitored with electrical velocimetry before treatment and through the following 72 h...
December 8, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/29222705/tai-chi-and-qigong-for-cancer-related-symptoms-and-quality-of-life-a-systematic-review-and-meta-analysis
#13
REVIEW
Peter M Wayne, M S Lee, J Novakowski, K Osypiuk, J Ligibel, L E Carlson, R Song
PURPOSE: This study aims to summarize and critically evaluate the effects of Tai Chi and Qigong (TCQ) mind-body exercises on symptoms and quality of life (QOL) in cancer survivors. METHODS: A systematic search in four electronic databases targeted randomized and non-randomized clinical studies evaluating TCQ for fatigue, sleep difficulty, depression, pain, and QOL in cancer patients, published through August 2016. Meta-analysis was used to estimate effect sizes (ES, Hedges' g) and publication bias for randomized controlled trials (RCTs)...
December 8, 2017: Journal of Cancer Survivorship: Research and Practice
https://www.readbyqxmd.com/read/29222690/risk-factor-of-contralateral-radiculopathy-following-microendoscopy-assisted-minimally-invasive-transforaminal-lumbar-interbody-fusion
#14
Yang Yang, Zhong-Yu Liu, Liang-Ming Zhang, Jian-Wen Dong, Pei-Gen Xie, Rui-Qiang Chen, Bu Yang, Chang Liu, Bin Liu, Li-Min Rong
PURPOSE: Microendoscopy-assisted minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF) is an advantageous method for treating lumbar degenerative disease; however, some patients show contralateral radiculopathy postoperatively. This study aims to investigate its risk factor. METHODS: A total of 130 cases who underwent microendoscopy-assisted MIS-TLIF at L4-5 level were divided into symptomatic and asymptomatic groups according to the presence of postoperative contralateral radiculopathy...
December 8, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29222628/one-year-clinical-effectiveness-comparison-of-prasugrel-with-ticagrelor-results-from-a-retrospective-observational-study-using-an-integrated-claims-database
#15
Mark B Effron, Kavita V Nair, Cliff Molife, Stuart Y Keller, Robert L Page, Jason C Simeone, Brian Murphy, Beth L Nordstrom, Yajun Zhu, Patrick L McCollam, George W Vetrovec
BACKGROUND: No direct comparisons of ticagrelor and prasugrel with 1-year clinical follow-up have been reported. OBJECTIVES: Our objective was to compare 1-year clinical outcomes among patients with acute coronary syndrome (ACS) managed with percutaneous coronary intervention (PCI) and treated with either ticagrelor or prasugrel in a real-world setting. METHODS: This retrospective study included patients from a payer database who were aged ≥18 years and had ACS managed with PCI with no history of transient ischemic attack (TIA)/stroke...
December 8, 2017: American Journal of Cardiovascular Drugs: Drugs, Devices, and Other Interventions
https://www.readbyqxmd.com/read/29222592/circadian-dependence-of-manual-thrombus-aspiration-benefit-in-patients-with-st-segment-elevation-myocardial-infarction-undergoing-primary-percutaneous-coronary-intervention
#16
Stephane Fournier, Olivier Muller, Umberto Benedetto, Marco Roffi, Thomas Pilgrim, Franz R Eberli, Hans Rickli, Dragana Radovanovic, Paul Erne, Stéphane Cook, Stéphane Noble, Rachel Fesselet, Andrea Zuffi, Sophie Degrauwe, PierGiorgio Masci, Stephan Windecker, Eric Eeckhout, Juan F Iglesias
BACKGROUND: The clinical benefit of manual thrombus aspiration (TA) during primary percutaneous coronary intervention (PPCI) in patients with ST-segment elevation myocardial infarction (STEMI) remains uncertain. This study assessed the impact of circadian rhythms on the effectiveness of manual TA. METHODS AND RESULTS: We conducted an observational study of patients enrolled in the Acute Myocardial Infarction in Switzerland Plus registry. STEMI patients undergoing PPCI with (TA group) or without (PCI-alone group) manual TA were divided based on time-of-day symptom onset: group 1 (00:00-05:59), group 2 (06:00-11:59), group 3 (12:00-17:59) and group 4 (18:00-23:59)...
December 8, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/29222552/animal-models-of-retinal-vein-occlusion
#17
Meiaad Khayat, Noemi Lois, Michael Williams, Alan W Stitt
Purpose: To provide a comprehensive and current review on the available experimental animal models of retinal vein occlusion (RVO) and to identify their strengths and limitations with the purpose of helping researchers to plan preclinical studies on RVO. Methods: A systematic review of the literature on experimental animal models of RVO was undertaken. Medline, SCOPUS, and Web of Science databases were searched. Studies published between January 1, 1965, and March 31, 2017, and that met the inclusion criteria were reviewed...
December 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29222472/long-noncoding-rna-hotair-modulates-mir-206-mediated-bcl-w-signaling-to-facilitate-cell-proliferation-in-breast-cancer
#18
Wei Ding, Jin Ren, Hui Ren, Dan Wang
LncRNA HOX transcript antisense RNA (HOTAIR) is involved in lots of cancers. The pro-survival protein Bcl-w is frequently found in cancer development. However, the effect of HOTAIR on Bcl-w in breast cancer is not well documented. In this study, we first evaluated the correlation between HOTAIR level and Bcl-w expression in clinical breast cancer tissues. We observed that the expression levels of Bcl-w were much higher in the breast cancer samples than that in their paired noncancerous tissues. Moreover, the levels of HOTAIR were positively associated with those of Bcl-w in clinical breast cancer samples...
December 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29222450/elevation-of-autophagy-markers-in-sj%C3%A3-gren-syndrome-dry-eye
#19
Yong-Soo Byun, Hyun Jung Lee, Soojung Shin, So-Hyang Chung
Autophagy is known to be implicated in the pathogenesis of Sjögren syndrome (SS), but evidences are limited. We aimed to examine the levels of autophagy markers in tear film and conjunctival epithelial cells from SS dry eye patients, and analyze their correlations with clinical features. Patients with SS dry eye exhibited lower Schirmer values, lower tear breakup time, and higher ocular staining scores. In tears, ATG5 and LC3B-II/I levels were significantly higher in SS dry eye. ATG5 and LC3B-II mRNA in the conjunctiva were also elevated in SS dry eye compared with non-SS dry eye...
December 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29222436/weekly-self-measurement-of-fev1-and-pef-and-its-impact-on-acq-asthma-control-questionnaire-scores-12-week-observational-study-with-76-patients
#20
Christoph Ulrich Werner, Klaus Linde, Julia Schäffner, Constanze Storr, Antonius Schneider
The "Asthma Control Questionnaire" (ACQ) is a very common questionnaire for assessing asthma control. This study compares different ACQ versions in a self-monitoring program over a 12-week period combining them with patients' self-measurements of peak expiratory flow (PEF) and forced expiratory volume in one second (FEV1). The objective was to test the feasibility of FEV1-self-measurements and to compare ACQ versions regarding possible additional information given by lung function. In this prospective multicenter observational study 100 adult asthma patients, recruited at six family practices and two pulmologists' private practices in Germany, completed the ACQ weekly, performing self-measurements of PEF and FEV1...
December 8, 2017: NPJ Primary Care Respiratory Medicine
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