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Clinical epidemiology

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https://www.readbyqxmd.com/read/28724047/correlation-between-virulence-markers-of-helicobacter-pylori-in-the-oral-cavity-and-gastric-biopsies
#1
Myriam Lucrecia Medina, Marcelo Gabriel Medina, Luis Antonio Merino
BACKGROUND: The clinical outcome of Helicobacter pylori infection has been associated with virulence factors. The presence of these factors is useful as molecular markers in the identification of the high risk for developing severe gastric pathologies. OBJECTIVE: To correlate the presence of virulence markers cagA and bab2A of H. pylori in oral and gastric biopsy samples. METHODS: An observational, prospective, descriptive, and cross-sectional study was carried out between September 2011 and September 2012...
July 13, 2017: Arquivos de Gastroenterologia
https://www.readbyqxmd.com/read/28723686/population-based-study-on-the-epidemiology-of-m%C3%A3-ni%C3%A3-re-s-disease
#2
Saskia G Bruderer, Daniel Bodmer, Nadja A Stohler, Susan S Jick, Christoph R Meier
BACKGROUND AND OBJECTIVE: Ménière's disease (MD) is a disorder of the inner ear typically showing recurrent acute episodes of vertigo, hearing loss, and tinnitus. Epidemiologic studies on MD are scarce. We assessed the incidence rates (IRs) of MD and describe the characteristics of MD cases, comparing them to control patients without recorded evidence of MD. STUDY DESIGN: We conducted a retrospective population-based follow-up study and a nested case-control analysis using data from the UK-based Clinical Practice Research Datalink...
July 20, 2017: Audiology & Neuro-otology
https://www.readbyqxmd.com/read/28722637/schistosomiasis-in-european-travelers-and-migrants-analysis-of-14-years-tropnet-surveillance-data
#3
Tilman Lingscheid, Florian Kurth, Jan Clerinx, Stefania Marocco, Begoña Trevino, Mirjam Schunk, José Muñoz, Ida E Gjørup, Tomas Jelinek, Michel Develoux, Graham Fry, Thomas Jänisch, Matthias L Schmid, Olivier Bouchaud, Sabino Puente, Lorenzo Zammarchi, Kristine Mørch, Anders Björkman, Heli Siikamäki, Andreas Neumayr, Henrik Nielsen, Urban Hellgren, Malgorzata Paul, Guido Calleri, Pavel Kosina, Bjørn Myrvang, José M Ramos, Gudrun Just-Nübling, Anna Beltrame, José Saraiva da Cunha, Peter Kern, Laurence Rochat, August Stich, Peter Pongratz, Martin P Grobusch, Norbert Suttorp, Martin Witzenrath, Christoph Hatz, Thomas Zoller, TropNet Schistosomiasis Investigator Group
Schistosomiasis remains one of the most prevalent parasitic diseases worldwide and the infection is frequently found in travelers and migrants. The European Network for Tropical Medicine and Travel Health conducted a sentinel surveillance study on imported schistosomiasis between 1997 and 2010. This report summarizes epidemiological and clinical data from 1,465 cases of imported schistosomiasis. Direct pathogen detection and serology were the main diagnostic tools applied. Of these, 486 (33%) cases were identified among European travelers, 231 (16%) among long-term expatriates, and 748 (51%) among non-European immigrants...
May 30, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28722615/assessing-the-short-term-global-health-experience-a-cross-sectional-study-of-demographics-socioeconomic-factors-and-disease-prevalence
#4
Olivia Geen, Allison Pumputis, Cristina Kochi, Andrew Costa, Karl Stobbe
Interest in short-term global health experiences to underserviced populations has grown rapidly in the last few decades. However, there remains very little research on what participants can expect to encounter. At the same time, it has been suggested that in order for physicians and workers to provide safe and effective care, volunteers should have a basic understanding of local culture, health systems, epidemiology, and socioeconomic needs of the community before arriving. Our objective was to add to the limited literature on what short-term global health trips can expect to encounter through a cross-sectional study of patient demographics, socioeconomic markers, and the prevalence of diseases encountered on a short-term medical service trip to Lima, Peru...
June 12, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28722612/the-epidemiology-of-scabies-and-impetigo-in-relation-to-demographic-and-residential-characteristics-baseline-findings-from-the-skin-health-intervention-fiji-trial
#5
Lucia Romani, Margot J Whitfeld, Josefa Koroivueta, Mike Kama, Handan Wand, Lisi Tikoduadua, Meciusela Tuicakau, Aminiasi Koroi, Raijieli Ritova, Ross Andrews, John M Kaldor, Andrew C Steer
Scabies and associated impetigo are under-recognised causes of morbidity in many developing countries. To strengthen the evidence base for scabies control we undertook a trial of mass treatment for scabies. We report on the occurrence and predictors of scabies and impetigo in participants at baseline. Participants were recruited in six island communities and were examined for the presence of scabies and impetigo. In addition to descriptive analyses, logistic regression models were fit to assess the association between demographic variables and outcome of interest...
July 17, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28722607/mucosal-leishmaniasis-a-retrospective-study-of-327-cases-from-an-endemic-area-of-leishmania-viannia-braziliensis
#6
Carolina Cincurá, Clara Mônica F de Lima, Paulo R L Machado, Jamary Oliveira-Filho, Marshall J Glesby, Marcus M Lessa, Edgar M Carvalho
Mucosal leishmaniasis (ML) is observed only in about 3% of patients with American tegumentary leishmaniasis (ATL) but has a high potential for destructive, disfiguring, and disabling sequelae. Prior reports of clinical and epidemiologic features of ML are limited by small numbers of cases. In this study, we evaluated changes in the demographic features and clinical presentation of ML in an endemic area of Leishmania braziliensis transmission over a period of 20 years. The charts of 327 patients with ML diagnosed between 1995 and 2014 were reviewed...
July 10, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28722600/ocular-gnathostomiasis-update-of-earlier-survey
#7
Yukifumi Nawa, Masahide Yoshikawa, Kittisak Sawanyawisuth, Verajit Chotmongkol, Sandra Fernández Figueiras, Maria Benavides, Sylvia Paz Diaz Camacho
Ocular gnathostomiasis is rather a rare food-borne zoonosis caused by infection with the larvae of several species of genus Gnathostoma and is a representative ocular larva migrans syndrome. In our previous literature survey, we found 73 cases of ocular gnathostomiasis reported up to and including 2009, though additional sporadic cases have been reported in Asia and the Americas since that report. Here, we review 10 additional cases reported since 2010, and also update current findings regarding epidemiological and clinical features in affected patients...
June 12, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28722592/a-cluster-of-symptomatic-and-asymptomatic-infections-of-severe-fever-with-thrombocytopenia-syndrome-caused-by-person-to-person-transmission
#8
Deyu Huang, Yueping Jiang, Xiaoping Liu, Bo Wang, Junming Shi, Zhan Su, Hui Wang, Ting Wang, Shuang Tang, Hanyun Liu, Zhihong Hu, Fei Deng, Shu Shen
Severe fever with thrombocytopenia syndrome virus (SFTSV) is a novel phlebovirus that was identified to be the etiological pathogen of the emerging infectious disease, severe fever with thrombocytopenia syndrome (SFTS). SFTSV could be transmitted through tick bite. Transmission of SFTSV among humans has also been reported mainly through direct blood contact. In July 2014, a cluster of six suspected SFTS cases occurred in Shandong Province, China. In this cluster, both symptomatic and asymptomatic persons were included...
May 30, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28722577/risk-factors-for-norovirus-gastroenteritis-among-nicaraguan-children
#9
Joann F Gruber, Natalie M Bowman, Sylvia Becker-Dreps, Yaoska Reyes, Connor Belson, Kenan C Michaels, Filemon Bucardo
Norovirus is a leading cause of pediatric gastroenteritis. Understanding norovirus epidemiology is essential for reducing disease burden. We conducted a case-control study to describe the distribution, clinical features, and risk factors of norovirus gastroenteritis among children < 5 years of age in León, Nicaragua. Cases were children testing positive for norovirus and controls were children living in the cases' communities. Study staff interviewed mothers of enrolled cases and controls to obtain detailed exposure information including food, water, and sanitation sources; recent exposures; household characteristics; and handwashing practices...
July 10, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28722566/molecular-epidemiology-of-staphylococcus-aureus-skin-and-soft-tissue-infections-in-the-lao-people-s-democratic-republic
#10
Alicia D Yeap, Kate Woods, David A B Dance, Bruno Pichon, Sayaphet Rattanavong, Viengmon Davong, Rattanaphone Phetsouvanh, Paul N Newton, Nandini Shetty, Angela M Kearns
This is the first report of the molecular epidemiology of Staphylococcus aureus from skin and soft tissue infections (SSTI) in Laos. We selected a random sample of 96 S. aureus SSTI isolates received by the Microbiology Laboratory, Mahosot Hospital, Vientiane, between July 2012 and June 2014, including representation from seven referral hospitals. Isolates underwent susceptibility testing by Clinical and Laboratory Standards Institute methods, spa typing and DNA microarray analysis, with whole genome sequencing for rare lineages...
May 30, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28721974/hepatitis-c-virus-infection-and-risk-of-osteoporosis-a-meta-analysis
#11
REVIEW
Karn Wijarnpreecha, Charat Thongprayoon, Panadeekarn Panjawatanan, Parkpoom Phatharacharukul, Patompong Ungprasert
BACKGROUND/AIMS: Hepatitis C virus (HCV) infection is one of the most common infections worldwide. Several epidemiologic studies have suggested that patients with HCV infection might be at an increased risk of osteoporosis. However, the data on this relationship remains inconclusive. This meta-analysis was conducted with the aim to summarize all available evidence. MATERIALS AND METHODS: A literature search was performed using MEDLINE and EMBASE databases from inception to June 2016...
July 2017: Saudi Journal of Gastroenterology: Official Journal of the Saudi Gastroenterology Association
https://www.readbyqxmd.com/read/28721935/prevalence-of-eye-disease-and-visual-impairment-in-%C3%A3-le-de-la-gonave-ha%C3%A3-ti
#12
B Tousignant, J Brûlé
Epidemiological data describing the prevalence of blindness and visual impairment in Haiti are sparse. The Haitian National Committee for the Prevention of Blindness (CNPC) estimates the prevalence of blindness at 1 %. Other regional data estimate moderate and severe visual impairment at 5% and 22%, respectively. IRIS Mundial (IM) is a non-governmental organization collaborating with the CNPC to develop eye care infrastructure in Haiti. To estimate the prevalence and causes of blindness and visual impairment on the Haitian island of Gonâve, to assist in planning of relevant eye care infrastructure...
July 19, 2017: Médecine et Santé Tropicales
https://www.readbyqxmd.com/read/28721887/external-beam-radiation-therapy-with-a-brachytherapy-boost-versus-radical-prostatectomy-in-gleason-pattern-5-prostate-cancer-a-population-based-cohort-study
#13
Chenyang Wang, Amar U Kishan, Mitchell Kamrava, Michael L Steinberg, Christopher R King
PURPOSE: Patients with prostate cancer (PCa) containing Gleason pattern (GP) 5 disease experience a greater and earlier incidence of prostate cancer-specific mortality (PCSM) than general PCa patients. This affords the statistical power to compare PCSM outcomes among different treatment modalities even when restricting the analysis to patients treated in the modern era. The purpose of the present study was to compare the survival outcomes among patients with GP 5 PCa on needle core biopsy or transurethral resection of the prostate who underwent extremely dose-escalated radiation therapy (RT; exemplified by external beam RT with a brachytherapy boost [EBRT + BT]) versus radical prostatectomy (RP) in the modern era...
August 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28721667/molar-incisor-hypomineralisation-mih-training-manual-for-clinical-field-surveys-and-practice
#14
A Ghanim, M J Silva, M E C Elfrink, N A Lygidakis, R J Mariño, K L Weerheijm, D J Manton
BACKGROUND: Despite clear assessment criteria, studies of molar incisor hypomineralisation (MIH) and hypomineralised second primary molars (HSPM) are marked by inconsistency in outcome measurements. This has detracted from meaningful comparisons between studies and limited interpretation. AIM: To provide a comprehensive manual as a companion to assist researchers in planning epidemiological studies of MIH and HSPM, with particular reference to outcome measurement...
July 18, 2017: European Archives of Paediatric Dentistry: Official Journal of the European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28721538/-methamphetamine-epidemiology-clinical-importance-and-sequelae-of-abuse
#15
N Arnaud, T Thomasius
Methamphetamine (also known as meth and crystal meth) is a highly psychoactive synthetic amphetamine type stimulant, which falls under the German Federal Narcotics Law. The substance is similar to other stimulants but has distinct features with respect to psychoactive effects, clinical symptoms, user characteristics and short and long-term consequences including substance-induced problems and comorbidities. The consumption and misuse of crystal meth is still limited to certain regions in Germany; however, the substance causes significant clinical and public health concerns in the affected regions and beyond due to the associated high potential for misuse and dependence, neurotoxic and neurodegenerative effects as well as many other severe health risks...
July 18, 2017: Der Nervenarzt
https://www.readbyqxmd.com/read/28721497/normoalbuminuric-diabetic-kidney-disease
#16
REVIEW
Chao Chen, Chang Wang, Chun Hu, Yachun Han, Li Zhao, Xuejing Zhu, Li Xiao, Lin Sun
Diabetic kidney disease (DKD) is one of the primary causes of end-stage renal disease (ESRD). Early diagnosis is very important in preventing the development of DKD. Urinary albumin excretion rate (UAER) and glomerular filtration rate (GFR) are widely accepted as criteria for the diagnosis and clinical grading of DKD, and microalbuminuria has been recommended as the first clinical sign of DKD. The natural history of DKD has been divided into three stages: normoalbuminuria, microalbuminuria, and macroalbuminuria...
July 18, 2017: Frontiers of Medicine
https://www.readbyqxmd.com/read/28721427/prevalence-of-frailty-in-nursing-home-residents-according-to-various-diagnostic-tools
#17
F Buckinx, J-Y Reginster, S Gillain, J Petermans, T Brunois, O Bruyère
BACKGROUND: Although the theoretical foundations of frailty are well established in the literature, it remains an evolving concept lacking any unique definition or diagnostic criteria for use in clinical practice and epidemiological research. No consensus exists about the accurate prevalence rates of frailty. The various operational definitions of frailty can at least partly explain such discrepancies. OBJECTIVE: To compare the prevalence of frailty, measured with different diagnostic tools, among elderly nursing home residents...
2017: Journal of Frailty & Aging
https://www.readbyqxmd.com/read/28721320/detection-of-chronic-kidney-disease-by-using-different-equations-of-glomerular-filtration-rate-in-patients-with-type-2-diabetes-mellitus-a-cross-sectional-analysis
#18
Sojib Bin Zaman
Introduction Chronic kidney disease (CKD) is a global threat due to its high mortality. It is essential to know the actual magnitude of diabetic CKD to design a specific management program. However, there is limited knowledge regarding the most suitable equation to measure CKD in patients with Type 2 diabetes mellitus (T2DM). This paper aimed to analyze estimated glomerular filtration rate (eGFR) based on different equations to detect the CKD among T2DM.  Methods A hospital-based cross-sectional study was carried out, and a clinical registry was used to collect 4,042 T2DM patients from a large district hospital in Northeast Thailand...
June 14, 2017: Curēus
https://www.readbyqxmd.com/read/28721177/antiretroviral-therapy-outcomes-among-hiv-infected-clients-in-gweru-city-zimbabwe-2006-2011-a-cohort-analysis
#19
Gerald Shambira, Notion Tafara Gombe, Casey Daniel Hall, Meeyoung Mattie Park, Joseph Asamoah Frimpong
The government of Zimbabwe began providing antiretroviral therapy (ART) to People Living with HIV/AIDS (PLHIV) in public institutions in 2004. In Midlands province two clinics constituted the most active HIV care service points, with patients being followed up through a comprehensive patient monitoring and tracking system which captured specific patient variables and outcomes over time. The data from 2006 to 2011 were subjected to analysis to answer specific research questions and this case study is based on that analysis...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28721077/food-protein-induced-enterocolitis-syndrome-a-review-of-the-literature-with-focus-on-clinical-management
#20
REVIEW
Marine Michelet, Dominique Schluckebier, Laetitia-Marie Petit, Jean-Christoph Caubet
Food protein-induced enterocolitis syndrome (FPIES) is a potentially severe presentation of non-IgE-mediated gastrointestinal food allergy (non-IgE-GI-FA) with heterogeneous clinical manifestations. Acute FPIES is typically characterized by profuse vomiting and lethargy, occurring classically 1-4 hours after ingestion of the offending food. When continuously exposed to the incriminated food, a chronic form has been described with persistent vomiting, diarrhea, and/or failure to thrive. Although affecting mainly infants, FPIES has also been described in adults...
2017: Journal of Asthma and Allergy
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