Arthritis, RheumatoidArthritisArthritis, ExperimentalCardiomyopathiesHeart DiseasesAmyloidosisArthritis, InfectiousSynovial MembraneHeart NeoplasmsAntirheumatic AgentsArthritis, JuvenileSynovial FluidRheumatoid FactorSarcoidosisArthritis, PsoriaticPericarditisJointsEchocardiographyChurg-Strauss SyndromeHypereosinophilic SyndromeElectrocardiographyArthritis, ReactiveMyocytes, CardiacSeverity of Illness IndexHeartSynovitisAmyloidosis, FamilialMyocarditisOsteoarthritisArrhythmias, CardiacMethotrexateScleroderma, SystemicMagnetic Resonance Imaging, CineMyotonic DystrophyTreatment OutcomeMuscular DystrophiesMuscular Dystrophy, Emery-DreifussMyocardiumBlood SedimentationChagas CardiomyopathyFabry DiseaseWegener GranulomatosisAtrioventricular BlockErdheim-Chester DiseaseCardiomyopathy, DilatedCardiac OutputPrednisoloneAutoantibodiesSulfasalazineMucopolysaccharidosesFatal OutcomeMetacarpophalangeal JointRheumatoid NoduleBiological MarkersGold Sodium ThiomalateTumor Necrosis Factor-alphaTime FactorsImmunoglobulin Light ChainsArthrographyLupus Erythematosus, SystemicFollow-Up StudiesPeptides, CyclicRheumatologyEchocardiography, DopplerRheumatic DiseasesHLA-DRB1 ChainsCase-Control StudiesMice, Inbred DBAImmunoglobulin GWrist JointProspective StudiesPericardial EffusionVentricular Function, LeftRetrospective StudiesHeart BlockMagnetic Resonance ImagingAmyloid Neuropathies, FamilialAntibodies, MonoclonalHeart VentriclesBehcet SyndromeMuscular Dystrophy, DuchenneFinger JointCardiac Surgical ProceduresPredictive Value of TestsBiopsyHLA-DR AntigensHLA-DR4 AntigenVentricular Dysfunction, LeftCells, CulturedCollagen Type IIDeath, Sudden, CardiacDisease ProgressionStroke VolumeCitrullineSpondylitis, AnkylosingHeart Valve DiseasesReceptors, Tumor Necrosis FactorPrognosisHeart Conduction SystemHeart Failure