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https://www.readbyqxmd.com/read/28681803/molecular-biology-of-group-a-streptococcus-and-its-implications-in-vaccine-strategies
#1
REVIEW
N K Brahmadathan
Infections due to Streptococcus pyogenes and their complications are a problem of major concern in many countries, including India. Primary prophylaxis with benzathine penicillin is the key to control and prevent sequelae such as acute rheumatic fever and rheumatic heart disease (RF/RHD) or post-streptococcal glomerulonephritis (PSGN). Non-compliance to prophylaxis due to fear of injection and anaphylaxis is major issues in RF/RHD control in India and leads to continued high prevalence of infection and post-streptococcal sequelae...
April 2017: Indian Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28673022/secondary-prevention-for-screening-detected-rheumatic-heart-disease-opportunities-to-improve-adherence
#2
Daniel Engelman, Maureen Ah Kee, Reapi L Mataika, Joseph H Kado, Samantha M Colquhoun, Jim Tulloch, Andrew C Steer
Background: Secondary prevention is an effective treatment for rheumatic heart disease (RHD), but ensuring high adherence to prophylaxis over many years is challenging and requires understanding of local factors. Methods: Participants were young people diagnosed with RHD through echocardiographic screening in Fiji. We used a structured interview to evaluate the following: health seeking behaviours; attitudes, practice, barriers and potential improvement strategies for adherence to antibiotic prophylaxis; and adolescent-friendly qualities of the health service...
April 1, 2017: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28617789/adequate-adherence-to-benzathine-penicillin-secondary-prophylaxis-following-the-diagnosis-of-rheumatic-heart-disease-by-echocardiographic-screening
#3
Nicola Culliford-Semmens, Elizabeth Tilton, Rachel Webb, Diana Lennon, Belinda Paku, John Malcolm, Sandi French, Nikki Blair, Nigel Wilson
AIMS: The primary aim of this study was to determine adherence to benzathine penicillin (BPG) for individuals diagnosed with rheumatic heart disease (RHD) by echocardiographic screening between 2007-2012. METHODS: BPG records were obtained for 57 patients, median age 12 at time of diagnosis. A 'days at risk' analysis was undertaken. Annual adherence was calculated for each individual. A comparison with the Wellington region's Rheumatic Fever 2013 adherence data was undertaken...
June 16, 2017: New Zealand Medical Journal
https://www.readbyqxmd.com/read/28589389/-safety-and-efficacy-of-off-label-use-of-biologic-therapies-in-patients-with-inflammatory-rheumatic-diseases-refractory-to-standard-of-care-therapy-data-from-a%C3%A2-nationwide-german-registry-graid2
#4
F Proft, H Schulze-Koops, M Grunke, E Schrezenmeier, F Halleck, J Henes, L Unger, E Schmidt, C Fiehn, A Jacobi, C Iking-Konert, C Kneitz, R E Schmidt, B Bannert, R E Voll, R Fischer-Betz, I Kötter, H P Tony, J Holle, M Aringer, A Erler, F Behrens, G R Burmester, T Dörner
BACKGROUND: The German Registry of Autoimmune Diseases 2 (GRAID2) is a retrospective, non-interventional, multicenter registry study collecting data from patients with inflammatory, mainly rheumatic diseases refractory to standard of care therapy and treated with an off-label biologic therapy. The retrospective documentation comprised case history, diagnosis, course of disease (including safety and global efficacy). The objective was to evaluate the global clinical outcome and safety of off-label biologic therapy in clinical practice...
June 6, 2017: Zeitschrift Für Rheumatologie
https://www.readbyqxmd.com/read/28589057/treatment-of-sydenham-s-chorea-a-review-of-the-current-evidence
#5
REVIEW
Shannon L Dean, Harvey S Singer
BACKGROUND: Sydenham's chorea (SC), the neurologic manifestation of rheumatic fever, remains the most prevalent form of chorea in children. Suggested treatments of chorea in SC include prophylactic penicillin, symptomatic (antipsychotic and anticonvulsant) medications, and immunomodulatory therapy (steroids, intravenous immunoglobulin (IVIG), and plasma exchange). In this manuscript, we undertook a systematic review of the published literature to examine the data supporting these therapeutic recommendations...
2017: Tremor and Other Hyperkinetic Movements
https://www.readbyqxmd.com/read/28562621/adherence-to-secondary-prophylaxis-for-rheumatic-heart-disease-is-underestimated-by-register-data
#6
Jessica Langloh de Dassel, Marea Therese Fittock, Sagen Cheyenne Wilks, Jane Elizabeth Poole, Jonathan Rhys Carapetis, Anna P Ralph
OBJECTIVE: In high-burden Australian states and territories, registers of patients with acute rheumatic fever and rheumatic heart disease are maintained for patient management, monitoring of system performance and research. Data validation was undertaken for the Australian Northern Territory Rheumatic Heart Disease Register to determine quality and impact of data cleaning on reporting against key performance indicators: overall adherence, and proportion of patients receiving ≥80% of scheduled penicillin doses for secondary prophylaxis...
2017: PloS One
https://www.readbyqxmd.com/read/28559267/a-penicillin-dried-blood-spot-assay-for-use-in-patients-receiving-intramuscular-benzathine-penicillin-g-and-other-penicillin-preparations-to-prevent-rheumatic-fever
#7
Madhu Page-Sharp, Jonathan Coward, Brioni R Moore, Sam Salman, Lewis Marshall, Timothy M E Davis, Kevin T Batty, Laurens Manning
Background: Rheumatic heart disease (RHD) remains an important global health challenge. Benzathine penicillin (BPG) is recommended every 3-4 weeks as secondary prophylaxis to prevent recurrent episodes of acute rheumatic fever and subsequent RHD. Following intramuscular injection, BPG is hydrolysed to penicillin G (benzylpenicillin). However, little is known of the pharmacokinetics (PK) of BPG in paediatric populations at high risk of RHD or the pharmacokinetic-pharmacodynamic relationship between penicillin exposure and clinically relevant outcomes...
May 30, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28554544/immuno-nephelometric-determination-of-group-streptococcal-anti-streptolysin-o-titres-asot-from-dried-blood-spots-method-for-validating-a-new-assay
#8
John Joseph, Neil Kent, Asha Bowen, Julie Hart, Meru Sheel, Robert Wardrop, Sam Abbs, Scott Bazely, Monika Rybak
This study was designed to determine the sensitivity and reproducibility of recovering anti-streptolysin O titres (ASOT) from dried blood spot (DBS) samples, a methodologic subcomponent of the penicillin pharmacokinetic studies in children receiving secondary prophylaxis with intramuscular benzathine penicillin for acute rheumatic fever.
May 26, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/28528779/atypical-articular-presentations-in-indian-children-with-rheumatic-fever
#9
Euden Bhutia, Dinesh Kumar, Mohan Kundal, Sunil Kishore, Atul Juneja
BACKGROUND: The objective of the study was to describe the clinical characteristics of atypical articular presentations during the initial outbreak and recurrence in patients with acute rheumatic fever (ARF) in the paediatric age group. METHODS: This was a retrospective, observational study conducted between January 2012 and December 2014 on all suspected cases of acute rheumatic fever (ARF) fulfilling either WHO 2004 or Australian guidelines with atypical articular manifestations ie, presence of at least one of the following features: duration of symptoms more than three weeks; monoarthritis/arthralgia; involvement of small joints of hand and feet and/or cervical spine and/or hip joint; and, not responding to salicylates in one week...
April 24, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28285457/group-a-streptococcus-acute-rheumatic-fever-and-rheumatic-heart-disease-epidemiology-and-clinical-considerations
#10
REVIEW
Liesl J Zühlke, Andrea Beaton, Mark E Engel, Christopher T Hugo-Hamman, Ganesan Karthikeyan, Judith M Katzenellenbogen, Ntobeko Ntusi, Anna P Ralph, Anita Saxena, Pierre R Smeesters, David Watkins, Peter Zilla, Jonathan Carapetis
Early recognition of group A streptococcal pharyngitis and appropriate management with benzathine penicillin using local clinical prediction rules together with validated rapi-strep testing when available should be incorporated in primary health care. A directed approach to the differential diagnosis of acute rheumatic fever now includes the concept of low-risk versus medium-to-high risk populations. Initiation of secondary prophylaxis and the establishment of early medium to long-term care plans is a key aspect of the management of ARF...
February 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28230706/first-presentation-acute-rheumatic-fever-is-preventable-in-a-community-setting-a-school-based-intervention
#11
Diana Lennon, Philippa Anderson, Melissa Kerdemelidis, Elizabeth Farrell, Suzanne Crengle Mahi, Teuila Percival, David Jansen, Joanna Stewart
BACKGROUND: Robust evidence is lacking for community initiatives to prevent first presentation acute rheumatic fever (ARF) by group A streptococcal (GAS) pharyngitis treatment. METHODS: We measured the effect of introducing a sore throat clinic program on first presentation ARF into 61 year 1-8 schools with students aged 5-13years (population ~ 25,000) in Auckland, New Zealand. The study period was 2010-2016. A generalized linear mixed model investigated ARF rate changes before and after the staggered introduction of school clinics...
February 22, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28163427/rheumatic-heart-disease-screening-current-concepts-and-challenges
#12
REVIEW
Scott Dougherty, Maziar Khorsandi, Philip Herbst
Rheumatic heart disease (RHD) is a disease of poverty, is almost entirely preventable, and is the most common cardiovascular disease worldwide in those under 25 years. RHD is caused by acute rheumatic fever (ARF) which typically results in cumulative valvular lesions that may present clinically after a number of years of subclinical disease. Therapeutic interventions, therefore, typically focus on preventing subsequent ARF episodes (with penicillin prophylaxis). However, not all patients with ARF develop symptoms and not all symptomatic cases present to a physician or are correctly diagnosed...
January 2017: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/28093988/adherence-to-secondary-prophylaxis-for-acute-rheumatic-fever-and-rheumatic-heart-disease-a-systematic-review
#13
Priya Minaxi Kevat, Benjamin M Reeves, Alan R Ruben, Ronny Gunnarsson
BACKGROUND: Optimal delivery of regular benzathine penicillin G (BPG) injections prescribed as secondary prophylaxis for acute rheumatic fever (ARF) and rheumatic heart disease (RHD) is vital to preventing disease morbidity and cardiac sequelae in affected pediatric and young adult populations. However, poor uptake of secondary prophylaxis remains a significant challenge to ARF/RHD control programs. OBJECTIVE: In order to facilitate better understanding of this challenge and thereby identify means to improve service delivery, this systematic literature review explored rates of adherence and factors associated with adherence to secondary prophylaxis for ARF and RHD worldwide...
January 16, 2017: Current Cardiology Reviews
https://www.readbyqxmd.com/read/28061759/rheumatic-heart-disease-in-uganda-predictors-of-morbidity-and-mortality-one-year-after-presentation
#14
Emmy Okello, Chris T Longenecker, Andrea Beaton, Moses R Kamya, Peter Lwabi
BACKGROUND: Rheumatic heart disease (RHD), the long-term consequence of rheumatic fever, accounts for most cardiovascular morbidity and mortality among young adults in developing countries. However, data on contemporary outcomes from resource constrained areas are limited. METHODS: A prospective cohort study of participants aged 5-60 years with established RHD was conducted in Kampala, Uganda, in which clinical exam, echocardiography, electrocardiography (ECG), and laboratory evaluation were done every 3 months and every 4-week benzathine penicillin prophylaxis was prescribed...
January 7, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/27801390/a-review-of-acute-rheumatic-fever-and-rheumatic-heart-disease-research-in-malaysia
#15
L C Hung, R Nadia
A total of 39 titles related to rheumatic fever or rheumatic heart disease in Malaysia were found with online literature search dating back to their inceptions and through 2014. Additional publications from conference journals were included. Nine papers were selected based on clinical relevance and future research implications. There were no population-based studies on the incidence or prevalence of ARF or RHD. In the 1980s, the incidence of admission due to ARF ranged from 2 to 21.1 per 100 000 paediatric admission per year...
June 2016: Medical Journal of Malaysia
https://www.readbyqxmd.com/read/27663649/throat-culture-positivity-rate-and-antibiotic-susceptibility-pattern-of-beta-hemolytic-streptococci-in-children-on-secondary-prophylaxis-for-rheumatic-heart-disease
#16
Nigus Zegeye, Daniel Asrat, Yimtubezinash Woldeamanuel, Abebe Habte, Etsegenet Gedlu, Tone Tønjum, Abraham Aseffa
BACKGROUND: Among children diagnosed to have chronic rheumatic valvular heart disease (RHD) in Ethiopia, many have been observed to develop recurrence of rheumatic fever (RF) despite secondary prophylaxis. This study determined the throat culture positivity rate and drug susceptibility pattern of beta hemolytic streptococci (BHS) isolated from children attending a specialized cardiac clinic in Ethiopia. METHODS: Throat swabs were collected from 233 children receiving benzathine penicillin injection as secondary prophylaxis for RHD and cultured...
September 23, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27581750/sharing-success-understanding-barriers-and-enablers-to-secondary-prophylaxis-delivery-for-rheumatic-fever-and-rheumatic-heart-disease
#17
Jennifer Chamberlain-Salaun, Jane Mills, Priya M Kevat, Marc G W Rémond, Graeme P Maguire
BACKGROUND: Rheumatic fever (RF) and rheumatic heart disease (RHD) cause considerable morbidity and mortality amongst Australian Aboriginal and Torres Strait Islander populations. Secondary antibiotic prophylaxis in the form of 4-weekly benzathine penicillin injections is the mainstay of control programs. Evidence suggests, however, that delivery rates of such prophylaxis are poor. METHODS: This qualitative study used semi-structured interviews with patients, parents/care givers and health professionals, to explore the enablers of and barriers to the uptake of secondary prophylaxis...
August 31, 2016: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/27520996/post-streptococcal-reactive-arthritis-where-are-we-now
#18
Himanshu Pathak, Tarnya Marshall
A 35-year-old man presented with polyarthritis and constitutional symptoms, and a recent history of multiple tick bites and skin rash on trekking holiday. He did not respond to oral doxycycline and cephalexine for presumed Lyme's disease. Further investigation confirmed strongly positive streptococcal serology. There was absence of clinical or echocardiography evidence of heart involvement and immunological screening for inflammatory arthritis was negative. In the absence of other major Jones criteria for acute rheumatic fever, besides polyarthritis and the serological evidence of a recent streptococcal infection, a diagnosis of post-streptococcal reactive arthritis (PSRA) was also made...
August 12, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27465618/preliminary-consultation-on-preferred-product-characteristics-of-benzathine-penicillin-g-for-secondary-prophylaxis-of-rheumatic-fever
#19
Rosemary Wyber, Ben J Boyd, Samantha Colquhoun, Bart J Currie, Mark Engel, Joseph Kado, Ganesan Karthikeyan, Mark Sullivan, Anita Saxena, Meru Sheel, Andrew Steer, Joseph Mucumbitsi, Liesl Zühlke, Jonathan Carapetis
Rheumatic fever is caused by an abnormal immune reaction to group A streptococcal infection. Secondary prophylaxis with antibiotics is recommended for people after their initial episode of rheumatic fever to prevent recurrent group A streptococcal infections, recurrences of rheumatic fever and progression to rheumatic heart disease. This secondary prophylaxis must be maintained for at least a decade after the last episode of rheumatic fever. Benzathine penicillin G is the first line antibiotic for secondary prophylaxis, delivered intramuscularly every 2 to 4 weeks...
October 2016: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/27209549/predictors-of-recurrence-in-sydenham-s-chorea-clinical-observation-from-a-single-center
#20
Esra Gurkas, Zeynep S Karalok, Birce D Taskin, Ummu Aydogmus, Alev Guven, Aydan Degerliyurt, Omer Bektas, Cahide Yilmaz
OBJECTIVE: Sydenham's chorea is the most common cause of acquired chorea in children and is the major manifestation for acute rheumatic fever. Despite being known as a benign, self-limiting condition, recurrences and persistence of symptoms can be seen. In this study, we aimed to evaluate retrospectively the clinical and laboratory features of patients with Sydenham's chorea and the rate and the course of recurrences, and to assess the risk of recurrences. METHODS: The study was a retrospective study conducted in a tertiary hospital...
October 2016: Brain & Development
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