The guidelines define the minimum requirements needed to diagnose RHD in individuals without a clear history of acute rheumatic fever (ARF), and will have important global and national implications.
Diagnosis is conducted with an ultrasound of the heart's valves and chambers, known as an echocardiogram, but currently no guidelines are available to define what is normal on echocardiography.
In the absence of definitive guidance, physicians reporting on echocardiograms make decisions based on their clinical experience, and missing the disease at an early stage can have devastating consequences.
"The new evidence-based guidelines clearly define not only what is considered to be a definite and a borderline case of RHD but also what is considered normal in children," said Dr Bo Reményi, Menzies School of Health Research, Darwin, Australia. "The aim of the guidelines is to maximise pick-up of minor degrees of RHD, while preventing over-diagnosis."
The World Heart Federation echocardiographic criteria for RHD have been developed and formulated on the basis of the best available evidence.
"The use of the guidelines should enable rapid identification of RHD patients who do not have a history of ARF," said Prof Jonathan Carapetis, a co-author of the guidelines and Director of the Menzies School of Health Research in Darwin, Australia.
Dr Nigel Wilson a co-author and Paediatric Cardiologist from the Starship Children's Hospital, Auckland New Zealand commented that "the guidelines should also allow for consistent echocardiographic reporting of RHD worldwide, which will in turn help us to get a better understanding of the number of people that are truly affected by this disease."Three categories have been defined on the basis of assessment by 2D, continuous-wave, and color-Doppler echocardiography: 'definite RHD', 'borderline RHD', and 'normal'. Four subcategories of 'definite RHD' and three subcategories of 'borderline RHD' exist, to reflect the various disease patterns.
RHD is a substantial global health problem that can result in irreversible heart damage and premature death. It occurs predominately in developing countries and is also common in poorer populations in middle-income countries (e.g. Brazil, India) and some indigenous populations in wealthy countries (Australia, New Zealand). RHD will continue to be a global problem unless current prevention initiatives are expanded and sustained.
Previous estimates state that more than 15 million people have RHD and that 350,000 people die each year while many more are left disabled.
Developing the Guidelines
An international advisory group of experts in RHD screening and echocardiographic manifestations of RHD was formed in 2009. Under the auspices of the World Heart Federation, this group of 21 investigators from six continents combined their clinical experience with detailed systematic literature review to developed evidence-based echocardiographic diagnostic guidelines for RHD.
The guideline co-authors include Drs Bo Reményi, Nigel Wilson, Andrew Steer, Beatriz Ferreira, Joseph Kado, Krishna Kumar, John Lawrenson, Graeme Maguire, Eloi Marijon, Mariana Mirabel, Ana Olga Mocumbi, Cleonice Mota, John Paar, Anita Saxena, Janet Scheel, John Stirling, Satupaitea Viali, Vijayalakshmi I. Balekundri, Gavin Wheaton, Liesl Zühlke and Jonathan Carapetis.
About the World Heart Federation
The World Heart Federation is dedicated to leading the global fight against heart disease and stroke with a focus on low- and middle-income countries via a united community of more than 200 member organizations. With its members, the World Heart Federation works to build global commitment to addressing cardiovascular health at the policy level, generates and exchanges ideas, shares best practice, advances scientific knowledge and promotes knowledge transfer to tackle cardiovascular disease – the world's number one killer. It is a growing membership organization that brings together the strength of medical societies and heart foundations from more than 100 countries. Through our collective efforts we can help people all over the world to lead longer and better heart-healthy lives. http://www.worldheart.org.
RHD at the World Congress of Cardiology
RHD will be a major topic at the upcoming World Congress of Cardiology Scientific Sessions (WCC) meeting in Dubai, April 18, 2012. The WCC is the official congress of the World Heart Federation and is held every two years. Through the Congress the World Heart Federation offers an international stage for the latest developments in science and public outreach in the field of cardiovascular health. The WCC places emphasis on the complementary nature of science and public outreach and strives to spread the message that through individual, community and patient-care interventions, the growing epidemic of cardiovascular diseases can be prevented. For more information, please visit http://www.worldcardiocongress.org
Further reports about: > Carapetis > Cardiology > Federation > Health Research > Heart > acute rheumatic fever > cardiovascular disease > cardiovascular health > devastating consequences > echocardiographic criteria > health services > middle-income countries > national implications > vascular disease > vascular health
Unique brain 'fingerprint' can predict drug effectiveness
11.07.2018 | McGill University
Direct conversion of non-neuronal cells into nerve cells
03.07.2018 | Universitätsmedizin der Johannes Gutenberg-Universität Mainz
For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.
To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...
For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.
Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...
Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.
A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...
Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.
"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....
Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.
Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...
13.07.2018 | Event News
12.07.2018 | Event News
03.07.2018 | Event News
17.07.2018 | Information Technology
17.07.2018 | Materials Sciences
17.07.2018 | Power and Electrical Engineering