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Alberto Pilotto, Simone Dini, Nicola Veronese, Julia Daragjati, Manuela Miolo, Monica M Mion, Andrea Fontana, Mario Lo Storto, Martina Zaninotto, Giada Bragato, Alberto Cella, Paolo Carraro, Filomena Addante, Massimiliano Copetti, Mario Plebani
BACKGROUND: To evaluate the prognostic accuracy of pro-ADM (adrenomedullin) in comparison with and in addition to the Multidimensional Prognostic Index (MPI), a validated predictive tool for mortality derived from a Comprehensive Geriatric Assessment (CGA), to predict one-month mortality risk in older patients hospitalized with community-acquired pneumonia (CAP). METHODS: All patients aged 65 years and older, consecutively admitted to an acute geriatric ward with a diagnosis of CAP from February to July 2012...
March 15, 2018: Panminerva Medica
Giuseppe Pasqualetti, Valeria Calsolaro, Sara Bernardini, Giuseppe Linsalata, Renato Bigazzi, Nadia Caraccio, Fabio Monzani
Introduction: Although the association between low FT3 and poor outcome has been extensively reported in literature, the degree of peripheral thyroxin deiodination and its relationship with frailty and survival in hospitalized older patients has not been fully established yet. The aim of the current study was to evaluate the possible correlation between FT3/FT4 ratio reduction, an indirect marker of thyroxin deiodination impairment, and frailty status and survival in hospitalized older patients...
March 12, 2018: Journal of Clinical Endocrinology and Metabolism
Eun Song Song, Somy Yoon, Joo Hyun Cho, Eun Mi Yang, Hwa Jin Cho, Young Youn Choi, Jae Sook Ma, Gwang Hyeon Eom, Young Kuk Cho
BACKGROUND: Kawasaki disease (KD) is known as systemic vasculitis, and more than half of the patients with KD have myocarditis, which can induce ventricular dysfunction. In this study, we evaluate left ventricular (LV) dysfunction in patients with KD based on the myocardial performance index (MPI) using pulse Doppler (PD) and tissue Doppler imaging (TDI), from the acute to convalescent phases. METHODS: We retrospectively studied 89 children diagnosed with KD from January 2010 to August 2012...
March 12, 2018: World Journal of Pediatrics: WJP
Asma Deeb, Abdulla Al Amoodi
We report a 4 years girl with congenital disorders of glycosylation (CDG) type Ib due to a novel homozygous mutation in MPI gene. She presented with diazoxide-responsive hyperinsulinemic hypoglycemia. CDG should be considered in unexplained hypoglycemia particularly in consanguineous families. Diagnosis enables monitoring/prevention of disease comorbidities and early effective treatment.
March 2018: Clinical Case Reports
M E Rodríguez-Almaraz, I Herraiz, P I Gómez-Arriaga, P Vallejo, E Gonzalo-Gil, A Usategui, E A López-Jiménez, A Galindo, M Galindo
OBJECTIVE: To evaluate the usefulness of the uterine artery mean pulsatility index (mPI-UtA) and the sFlt-1/PlGF ratio in women with systemic lupus erythematosus (SLE) or antiphospholipid syndrome (APS) for the prediction of placental dysfunction-related adverse outcomes (AO), namely pre-eclampsia (PE) and intrauterine growth restriction (IUGR), and for differential diagnosis between PE and SLE flares. STUDY DESIGN: Observational prospective cohort study of 57 pregnant women with SLE or APS...
January 2018: Pregnancy Hypertension
Nicole Stichling, Maarit Suomalainen, Justin W Flatt, Markus Schmid, Martin Pacesa, Silvio Hemmi, Wolfgang Jungraithmayr, Mareike D Maler, Marina A Freudenberg, Andreas Plückthun, Tobias May, Mario Köster, György Fejer, Urs F Greber
Macrophages are a diverse group of phagocytic cells acting in host protection against stress, injury, and pathogens. Here, we show that the scavenger receptor SR-A6 is an entry receptor for human adenoviruses in murine alveolar macrophage-like MPI cells, and important for production of type I interferon. Scavenger receptors contribute to the clearance of endogenous proteins, lipoproteins and pathogens. Knockout of SR-A6 in MPI cells, anti-SR-A6 antibody or the soluble extracellular SR-A6 domain reduced adenovirus type-C5 (HAdV-C5) binding and transduction...
March 9, 2018: PLoS Pathogens
Szu-Ying Tsai, Shan-Ying Wang, Yu-Chien Shiau, Yen-Wen Wu
Hypertrophic cardiomyopathy (HCM) is an often under-diagnosed cause of left ventricular hypertrophy (LVH). It affects 1/500 of the population, is the most commonly inherited cardiovascular disorder, and can present in apical, concentric, or septal forms. Although most patients are asymptomatic, sudden cardiac death can be the initial presentation of HCM. By retrospectively enrolling patients suspected of having three different types of HCM in the absence of epicardial coronary stenosis, we aimed to examine systolic and diastolic dysfunction and perfusion abnormalities using both Doppler echocardiography and state-of-the-art gated single-photon emission computerized tomography (SPECT) myocardial perfusion imaging (MPI) with a cadmium-zinc-telluride camera and thallium-201...
March 8, 2018: Scientific Reports
Carlos D Davila, James E Udelson
Among all patients referred for stress myocardial perfusion imaging (MPI), a substantial proportion in contemporary practice cannot exercise. Another group of patients are those who are thought to be able to achieve an adequate workload with treadmill (or bicycle) exercise but do not achieve at least 85% of maximum predicted heart rate without developing symptoms. There has been substantial interest and literature on the adjunctive use of vasodilator stress during the same visit to generate best-quality results for patients who do not exercise adequately...
March 2018: JACC. Cardiovascular Imaging
Tsukasa Nakamura, Kazunori D Yamada, Kentaro Tomii, Kazutaka Katoh
Summary: We report an update for the MAFFT multiple sequence alignment program to enable parallel calculation of large numbers of sequences. The G-INS-1 option of MAFFT was recently reported to have higher accuracy than other methods for large data, but this method has been impractical for most largescale analyses, due to the requirement of large computational resources. We introduce a scalable variant, G-large-INS-1, that has equivalent accuracy to G-INS-1 and is applicable to 50,000 or more sequences...
March 1, 2018: Bioinformatics
Shinro Matsuo, Kenichi Nakajima, Yasuchika Takeishi, Tsunehiko Nishimura
BACKGROUND: The purpose of this study is to test the hypothesis that a normal myocardial perfusion imaging (MPI) study in chronic kidney disease (CKD) can provide benign prognostic information for the prediction of major cardiovascular events. METHODS: The study group consisted of 431 CKD patients (males, 64%; mean age, 72 ± 11 years) with normal SPECT imaging. Based on SPECT image and QGS data, 331 had a summed stress score of 3 or less, a summed difference score of 1 or less and normal cardiac function (males; end-systolic volume (ESV) ≤ 60 ml, females; ESV ≤ 40 ml, males, ejection fraction (EF) ≥ 49%; females, EF ≥ 50%)...
March 3, 2018: European Journal of Nuclear Medicine and Molecular Imaging
S Yokota, J P Ottervanger, M Mouden, M J de Boer, P L Jager, J R Timmer
PURPOSE: Normal myocardial perfusion imaging (MPI) is associated with excellent prognosis. However, in patients with persisting symptoms, it may be difficult to determine the patients in whom invasive angiography is justified to rule out false negative MPI. We evaluated predictors for severe stenosis at invasive angiography in patients with persisting symptoms after normal MPI. METHODS: 229 consecutive patients with normal MPI, without previous bypass surgery, underwent invasive angiography within 6 months...
March 2, 2018: Netherlands Heart Journal
B Julie He, Brian J Malm, Michelle Carino, Mehran M Sadeghi
BACKGROUND: Myocardial perfusion imaging (MPI) often employs attenuation-correction computed tomography (CTAC) to reduce attenuation artifacts and improve specificity. While there is no specific guideline on how they should be reported, incidental noncardiac findings identified on these scans may be clinically significant. The prevalence of these findings in veterans is not currently known. In addition, variability in reporting these findings may depend on the interpreting physician's specialty...
February 28, 2018: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
Mouaz H Al-Mallah, Thomas N B Pascual, Mathew Mercuri, João V Vitola, Ganesan Karthikeyan, Nathan Better, Maurizio Dondi, Diana Paez, Andrew J Einstein
BACKGROUND: There is growing concern about radiation exposure from nuclear myocardial perfusion imaging (MPI), particularly among younger patients who are more prone to develop untoward effects of ionizing radiation, and hence US and European professional society guidelines recommend age as a consideration in weighing radiation risk from MPI. We aimed to determine how patient radiation doses from MPI vary across age groups in a large contemporary international cohort. METHODS: Data were collected as part of a global cross-sectional study of centers performing MPI coordinated by the International Atomic Energy Agency (IAEA)...
February 16, 2018: International Journal of Cardiology
Jei-Yie Huang, Ruoh-Fang Yen, Wen-Chung Lee, Chun-Kai Huang, Pei-Ying Hsu, Mei-Fang Cheng, Ching-Chu Lu, Yen-Hung Lin, Kuo-Liong Chien, Yen-Wen Wu
BACKGROUND: The benefits of attenuation correction (AC) in technetium-99m myocardial perfusion imaging (MPI) have been well established. However, the value of thallium (Tl-201) AC and routine computed tomography AC (CTAC) were less well established. The aims of this study were to evaluate the diagnostic performance of thallium (Tl-201) MPI with additional CTAC and to determine which participants would benefit most. METHODS AND RESULTS: A total of 108 consecutive patients who underwent Tl-201 MPI and received coronary angiography within 3 months were enrolled...
February 26, 2018: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
Katsuyuki Sekii, Chizuko Yaguchi, Hiroaki Itoh
OBJECTIVE: Few studies have correlated the placental vasculature with fetal cardiac function other than umbilical artery Doppler assessment in low-risk pregnancies. We assessed the contribution of the placental vasculature to fetal echocardiographic parameters using histopathological and morphometric analyses of placental resistance arteries. STUDY DESIGN: Thirty-four low-risk singleton term pregnancies were assessed, including 24 thrombosis-negative cases (no/minimal gross and histological placental abnormalities) and 10 thrombosis-positive cases (histologically identified chorionic plate/stem vessel thrombosis)...
February 14, 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
R S Driessen, P G Raijmakers, I Danad, W J Stuijfzand, S P Schumacher, J A Leipsic, J K Min, J Knuuti, A A Lammertsma, A C van Rossum, N van Royen, S R Underwood, P Knaapen
PURPOSE: Traditionally, interpretation of myocardial perfusion imaging (MPI) is based on visual assessment. Computer-based automated analysis might be a simple alternative obviating the need for extensive reading experience. Therefore, the aim of the present study was to compare the diagnostic performance of automated analysis with that of expert visual reading for the detection of obstructive coronary artery disease (CAD). METHODS: 206 Patients (64% men, age 58...
February 22, 2018: European Journal of Nuclear Medicine and Molecular Imaging
Michael Gerhard Kaul, Johannes Salamon, Tobias Knopp, Harald Ittrich, Gerhard Adam, Horst Weller, Caroline Jung
Magnetic particle imaging (MPI) is a new imaging technology. It is a potential candidate to be used for angiographic purposes, to study perfusion and cell migration. The aim of this work was to measure velocities of the flowing blood in the inferior vena cava of mice using MPI and to evaluate it in comparison with magnetic resonance imaging (MRI). A phantom mimicking the flow within the inferior vena cava with velocities of up to 21 cm/s was used for the evaluation of the applied analysis techniques. Time-density and distance-density analysis for bolus tracking were performed to calculate flow velocities...
February 21, 2018: Physics in Medicine and Biology
Lily D Yan, Jonas Mwale, Samantha Straitz, Godfrey Biemba, Zulfiqar Bhutta, Julia F Ross, Lawrence Myananyanda, Mary Nambao, Paul Ngwakum, Eleonora Genovese, Bowen Banda, Nadia Akseer, Kojo Yeboah-Antwi, Peter Rockers, Davidson H Hamer
OBJECTIVE: To assess how quality and availability of reproductive, maternal, neonatal (RMNH) services vary by district wealth and urban/rural status in Zambia. METHODS: We conducted a retrospective analysis of data from the Millennium Development Goal Acceleration Initiative baseline assessment of 117 health facilities in 9 districts. Quality was assessed through a composite score of 23 individual RMNH indicators, ranging from 0 to 1. Availability was evaluated by density of providers and facilities...
February 19, 2018: Tropical Medicine & International Health: TM & IH
Ling Du, Nathaniel Mikle, Zhenhua Zou, Yuanyuan Huang, Zheng Shi, Lifen Jiang, Heather R McCarthy, Junyi Liang, Yiqi Luo
Quantifying the ecological patterns of loss of ecosystem function in extreme drought is important to understand the carbon exchange between the land and atmosphere. Rain-use efficiency [RUE; gross primary production (GPP)/precipitation] acts as a typical indicator of ecosystem function. In this study, a novel method based on maximum rain-use efficiency (RUE max ) was developed to detect losses of ecosystem function globally. Three global GPP datasets from the MODIS remote sensing data (MOD17), ground upscaling FLUXNET observations (MPI-BGC), and process-based model simulations (BESS), and a global gridded precipitation product (CRU) were used to develop annual global RUE datasets for 2001-2011...
February 14, 2018: Science of the Total Environment
David C Levin, Laurence Parker, Ethan J Halpern, Vijay M Rao
OBJECTIVE: Previously published reports have shown that coronary CT angiography (CCTA) is a more efficient method of diagnosis than myocardial perfusion imaging (MPI) and stress echocardiography for patients presenting to emergency departments (EDs) with acute chest pain. In light of this evidence, the objective of this study was to examine recent trends in the use of these techniques in EDs. MATERIALS AND METHODS: The nationwide Medicare Part B databases for 2006-2015 were the data source...
February 15, 2018: AJR. American Journal of Roentgenology
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