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https://www.readbyqxmd.com/read/28538960/diagnostic-accuracy-of-computed-tomography-derived-fractional-flow-reserve-a-systematic-review
#1
Christopher M Cook, Ricardo Petraco, Matthew J Shun-Shin, Yousif Ahmad, Sukhjinder Nijjer, Rasha Al-Lamee, Yuetsu Kikuta, Yasutsugu Shiono, Jamil Mayet, Darrel P Francis, Sayan Sen, Justin E Davies
Importance: Computed tomography-derived fractional flow reserve (FFR-CT) is a novel, noninvasive test for myocardial ischemia. Clinicians using FFR-CT must be able to interpret individual FFR-CT results to determine subsequent patient care. Objective: To provide clinicians a means of interpreting individual FFR-CT results with respect to the range of invasive FFRs that this interpretation might likely represent. Evidence Review: We performed a systematic review in accordance with guidelines from the Preferred Reporting Items for Systematic Reviews and Meta-Analyses...
May 24, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/28538580/what-s-new-in-cleft-palate-and-velopharyngeal-dysfunction-management
#2
Sanjay Naran, Matthew Ford, Joseph E Losee
LEARNING OBJECTIVES: After studying this article, the participant should be able to: 1. Have a clear understanding of the evolution of concepts of velopharyngeal dysfunction, especially as it relates to patients with a cleft palate. 2. Explain the subjective and objective evaluation of speech in children with velopharyngeal dysfunction. 3. On the basis of these diagnostic findings, be able to classify types of velopharyngeal dysfunction. 4. Develop a safe, evidence-based, patient-customized treatment plan for velopharyngeal dysfunction founded on objective considerations...
June 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28538566/predicting-thrombosis-formation-in-1-mm-diameter-arterial-anastomoses-with-transit-time-ultrasound-technology
#3
Gabrielle Shaughness, Collin Blackburn, Alberto Ballestín, Yelena Akelina, Jeffrey A Ascherman
BACKGROUND: Thrombosis is a common source of failure in anastomoses, flaps, and vascular grafts. Ensuring vessel patency is critical to the success of microvascular procedures. Any tool that can accurately predict the patency of an anastomosis intraoperatively would enable the surgeon to detect and correct flow restrictions while the patient is still in the operating room. METHODS: The authors used transit-time ultrasound technology in this pilot study to investigate whether a minimal cutoff value for quantitative postoperative blood flow (in milliliters per minute) could be established that would reliably predict sustained vessel patency at 24 hours postoperatively...
June 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28538448/ultrasonography-for-preoperative-diagnosis-of-retroperitoneal-fibrosis
#4
Sheng-Jiang Chen, Ling Qin, Yu-Juan Xie, Jian-Ping Zhu, Qiang Zhang, Mei Chen
This study aimed to assess the application of ultrasonography for preoperative diagnosis of retroperitoneal fibrosis (RPF). A total of 51 patients with clinically suspected RPF underwent transabdominal ultrasonography and ultrasound-guided histopathologic biopsy (tAU-UGHB). Retroperitoneal fibrosis was diagnosed in 35 patients; of these, 31 cases (88.6%) received a diagnosis using tAU-UGHB. The ultrasonographic images mainly showed solid, irregular isoechoic masses, which were present behind the retroperitoneum and surrounded the abdominal aorta, inferior vena cava, and ureters and had clear borders with the encapsulated structures...
June 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28538414/clinical-predictors-for-the-manifestation-of-late-gadolinium-enhancement-after-acute-myocardial-infarction
#5
Nadine Abanador-Kamper, Lars Kamper, Marc Vorpahl, Hilmar Brinkmann, Vasiliki Karamani, Patrick Haage, Melchior Seyfarth
Despite prompt revascularization, some patients with acute myocardial infarction (AMI) develop myocardial scars, which can be visualized by late gadolinium enhancement (LGE) in cardiovascular magnetic resonance imaging (CMR). Our goal was to identify angiographic findings that were predictive for scar development in patients after reperfused AMI.We examined 136 patients after first ST-elevated myocardial infarction by CMR after a median of 4 days (range: 2-7). Patients with manifestation of LGE were matched to patients without LGE by means of age and gender...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28538376/value-of-superb-microvascular-imaging-ultrasonography-in-the-diagnosis-of-carpal-tunnel-syndrome-compared-with-color-doppler-and-power-doppler
#6
Jie Chen, Li Chen, Lei Wu, Rui Wang, Ji-Bin Liu, Bing Hu, Li-Xin Jiang
The aim of this study was to compare the value of superb microvascular imaging (SMI) in carpal tunnel syndrome (CTS) with that of color Doppler ultrasonography (CDUS) and power Doppler ultrasonography (PDUS).Fifty patients with symptomatic CTS and 25 healthy volunteers were enrolled. The cross-sectional area (CSA), CDUS score, PDUS score, and SMI score of the median nerve (MN) at the carpal tunnel were recorded. The value of different ultrasonography (US) diagnostic strategies was calculated.The blood flow display ratio in the MN of the healthy volunteers had no statistical difference between CDUS, PDUS, and SMI (20%, 32%, and 48%, respectively, P >...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28538271/pulmonary-transplant-salvage-using-ultrasound-assisted-thrombolysis-of-subacute-occlusive-main-pulmonary-artery-embolus
#7
John R Spratt, Prashant Shrestha, Gabriel Loor, Jagadish M Patil, Marshall I Hertz, Gosta B Pettersson, Michael S Rosenberg
A 53-year-old woman who underwent bilateral lung transplantation 14 months before presented with 2 to 3 weeks of severe exertional dyspnea. Workup revealed a complete embolic occlusion of her left main pulmonary artery related to a femoral deep venous thrombosis. The occlusion did not respond to systemic anticoagulation, and a trial of catheter-directed thrombolysis was pursued. Flow to the left lower lobe was restored after 2 days of thromobolytic therapy. The patient is alive and well at more than 1 year of follow-up...
May 19, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28538221/retinal-microvasculature-in-nonproliferative-diabetic-retinopathy-automated-quantitative-optical-coherence-tomography-angiography-assessment
#8
Marco Lupidi, Gabriel Coscas, Florence Coscas, Tito Fiore, Elisa Spaccini, Daniela Fruttini, Carlo Cagini
PURPOSE: To perform a qualitative and quantitative assessment of the foveal microvasculature in eyes with diabetic maculopathy using optical coherence tomography angiography (OCT-A). METHODS: Retrospective case series of 48 eyes with diabetic maculopathy and 47 healthy eyes evaluated by Spectralis OCT-A. Perifoveal arcade disruptions, linear vascular dilations, microaneurysms, intraretinal microvascular abnormalities and flow-void areas were qualitatively analyzed on OCT angiograms both for the superficial (SCP) and deep (DCP) capillary plexuses...
May 25, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28538000/revascularization-for-patients-with-diabetes-mellitus-and-stable-ischemic-heart-disease-an-update
#9
G B John Mancini, Michael Farkouh, Subodh Verma
PURPOSE OF REVIEW: To provide an update on the management of patients with diabetes mellitus and requiring coronary revascularization. RECENT FINDINGS: Evidence continues to show that patients with diabetes mellitus and ischemic heart disease represent a very high-risk group of patients. Choice of stent appears important for minimizing target lesion and target vessel adverse events with everolimus eluting stents having the best performance, particularly in patients being treated with insulin...
May 19, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28537997/where-are-we-heading-with-fluid-responsiveness-research
#10
Simon T Vistisen, Peter Juhl-Olsen
PURPOSE OF REVIEW: Fluid responsiveness prediction is not always possible with well established dynamic approaches such as passive leg raising or pulse pressure variation in the ICU. The purpose of the present review is to summarize emerging alternative techniques for fluid responsiveness prediction in adult critically ill patients and discuss their methodology and applicability. In addition, the future role of fluid responsiveness prediction in the ICU is discussed. RECENT FINDINGS: Several new dynamic techniques have been investigated and they all contribute to the applicability of fluid responsiveness techniques...
May 22, 2017: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/28537908/increased-expression-of-irf8-in-tumor-cells-inhibits-the-generation-of-th17-cells-and-predicts-unfavorable-survival-of-diffuse-large-b-cell-lymphoma-patients
#11
Weijie Zhong, Xin Xu, Zhigang Zhu, Qinghua Du, Hong Du, Li Yang, Yanying Ling, Huabao Xiong, Qingshan Li
The immunological pathogenesis of diffuse large B cell lymphoma (DLBCL) remains elusive. Searching for new prognostic markers of DLBCL is a crucial focal point for clinical scientists. The aim of the present study was to examine the prognostic value of interferon regulatory factor 8 (IRF8) expression and its effect on the development of Th17 cells in the tumor microenvironment of DLBCL patients. Flow cytometry, immunohistochemistry, and quantitative real-time PCR were used to detect the distribution of Th17 cells and related cytokines and IRF8 in tumor tissues from DLBCL patients...
May 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28537895/interaction-of-glycosphingolipids-gd3-and-gd2-with-growth-factor-receptors-maintains-breast-cancer-stem-cell-phenotype
#12
Yuh-Jin Liang, Chen-Yu Wang, I-An Wang, Yi-Wen Chen, Li-Tzu Li, Chuang-Yu Lin, Ming-Yi Ho, Tsung-Lung Chou, Ya-Hui Wang, Shih-Pin Chiou, Yu-Ju Lin, John Yu
Many studies have suggested that disialogangliosides, GD2 and GD3, are involved in the development of various tumor types. However, the functional relationships between ganglioside expression and cancer development or aggressiveness are not fully described. GD3 is upregulated in approximately half of all invasive ductal breast carcinoma cases, and enhanced expression of GD3 synthase (GD3S, alpha-N-acetylneuraminide alpha-2,8-sialyltransferase) in estrogen receptor-negative breast tumors, was shown to correlate with reduced overall patient survival...
May 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28537696/electron-microscopic-changes-of-detrusor-in-benign-enlargement-of-prostate-and-its-clinical-correlation
#13
Sher Singh Yadav, Rohit Bhattar, Lokesh Sharma, Gautam Banga, Trilok Chandra Sadasukhi
AIMS: To study the ultra structural changes in bladder musculature in cases of BPE and their clinical relevance. MATERIAL AND METHODS: In this descriptive longitudinal, controlled, observational study patients were enrolled into three groups, group 1, group 2A and group 2B. Control group (group-1) consisted of age matched normal male patients, who underwent surveillance or diagnostic cystoscopy for microscopic hematuria or irritative symptoms. Case group (group-2) comprised of patients with BPE, undergoing TURP...
May 23, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28535665/l1-cell-adhesion-molecule-promotes-migration-and-invasion-via-jnk-activation-in-extrahepatic-cholangiocarcinoma-cells-with-activating-kras-mutation
#14
Haejung Kim, Haein Hwang, Hansoo Lee, Hyo Jeong Hong
Extrahepatic cholangiocarcinoma (ECC), a malignant tumor of biliary origin, has a poor prognosis with limited treatment options. The KRAS oncogene is the most commonly mutated gene in ECC and one of the factors that predicts a poor prognosis and low survival rate. L1 cell adhesion molecule (L1CAM) is expressed in ECC cells and acts as an independent poor prognostic factor in predicting patient survival. In this study we investigate the functional significance of L1CAM in ECC cells with activating KRAS mutation...
May 24, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/28535525/expanded-hemodialysis-a-new-therapy-for-a-new-class-of-membranes
#15
Claudio Ronco, Gaetano La Manna
A wide spectrum of molecules is retained in end-stage kidney disease, normally defined as uremic toxins. These solutes have different molecular weights and radii. Current dialysis membranes and techniques only remove solutes in the range of 50-15,000 Da, with limited or no capability to remove solutes in the middle to high molecular weight range (up to 50,000 Da). Improved removal has been obtained with high cut-off (HCO) membranes, with albumin loss representing a limitation to their practical application...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28535514/mir-129-5p-inhibits-proliferation-and-invasion-of-chondrosarcoma-cells-by-regulating-sox4-wnt-%C3%AE-catenin-signaling-pathway
#16
Peng Zhang, Jifeng Li, Yuze Song, Xiao Wang
BACKGROUND/AIMS: Recently, microRNAs (miRNA) have been identified as novel regulators in Chondrosarcoma (CHS). This study was aimed to identify the roles of miR-129-5p-5p in regulation of SOX4 and Wnt/β-catenin signaling pathway, as well as cell proliferation and apoptosis in chondrosarcomas. MATERIALS AND METHODS: Tissue samples were obtained from chondrosarcoma patients. Immunohistochemistry, real-time quantitative RT-PCR (RT-qPCR) and western blot analysis were performed to detect the expressions of miR-129-5p and SOX4...
May 25, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28535506/long-noncoding-rna-afap1-as1-promoted-tumor-growth-and-invasion-in-cholangiocarcinoma
#17
Xu Lu, Chuang Zhou, Renfeng Li, Yilei Deng, Longshuan Zhao, Wenlong Zhai
BACKGROUND: Long non-coding RNAs (lncRNAs) have been shown to play important roles in a wide range of pathophysiological processes, including cancer progression. Our previous study has shown that AFAP1-AS1 was upregulated and acted as an oncogene in hepatocellular carcinoma. However, the expression and biological functions of lncRNA AFAP1-AS1 in intrahepatic cholangiocarcinoma (CCA) remains largely unknown. METHODS: The expression level of AFAP1-AS1 was measured in 56 pairs of human cholangiocarcinoma tumor tissues and corresponding adjacent normal bile duct tissues...
May 25, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28535287/a-flow-cytometry-based-screen-identifies-mbnl1-modulators-that-rescue-splicing-defects-in-myotonic-dystrophy-type-i
#18
Fan Zhang, Nicole E Bodycombe, Keith M Haskell, Yumei L Sun, Eric T Wang, Carl A Morris, Lyn H Jones, Lauren D Wood, Mathew T Pletcher
Myotonic Dystrophy Type 1 (DM1) is a rare genetic disease caused by expansion of CTG trinucleotide repeats ((CTG)exp) in the 3' untranslated region of the DMPK gene. The repeat transcripts sequester the RNA binding protein Muscleblind-like protein 1 (MBNL1) and hamper its normal function in pre-mRNA splicing. Overexpressing exogenous MBNL1 in the DM1 mouse model has been shown to rescue the splicing defects and reverse myotonia. Although a viable therapeutic strategy, pharmacological modulators of MBNL1 expression have not been identified...
May 23, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28535190/concomitant-repair-for-mild-aortic-insufficiency-and-continuous-flow-left-ventricular-assist-devices
#19
Shinichi Fukuhara, Hirohisa Ikegami, Antonio R Polanco, Jeremy J Song, Jiho Han, Koji Takeda, Paul A Kurlansky, Hiroo Takayama, Yoshifumi Naka
OBJECTIVES: Aortic insufficiency (AI) after continuous-flow left ventricular assist device (CF-LVAD) implantation has become a highly relevant subject. However, management of pre-existing mild AI is unknown. We examined the fate of pre-existing mild AI during CF-LVAD support. METHODS: From March 2004 to October 2015, 446 consecutive patients received CF-LVAD. Of these, 56 (12.6%) patients with pre-existing mild AI were identified. Outcomes were compared between patients who underwent repair [ n  = 41 (73...
May 23, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28534989/enhanced-cancer-stem-cell-properties-of-a-mitotically-quiescent-subpopulation-of-p75ntr-positive-cells-in-esophageal-squamous-cell-carcinoma
#20
Hirofumi Kojima, Tomoyuki Okumura, Tetsuji Yamaguchi, Takeshi Miwa, Yutaka Shimada, Takuya Nagata
Mitotically quiescent cancer stem cells (CSCs) possess higher malignant potential than other CSCs, indicating their higher contribution to therapeutic resistance than that of other CSCs. In esophageal squamous cell carcinoma (ESCC), p75 neurotrophin receptor (p75NTR) is expressed in a candidate CSC population showing high tumorigenicity and chemoresistance. In the present study, we isolated and characterized quiescent CSCs population in ESCC based on p75NTR expression and cell cycle status. Expression of p75NTR and Ki-67 in ESCC cell lines (KYSE cells) and surgically resected ESCC specimens was detected by performing immunocytochemical analysis...
May 16, 2017: International Journal of Oncology
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