RESUMO
BACKGROUND: Right ventricle (RV) dilatation and dysfunction are established criteria for intervention in severe tricuspid regurgitation (TR); however thresholds to support intervention are lacking. New measures of RV function such as RV shortening (RVS) and effective RV ejection fraction (eRVEF) may be earlier markers of RV dysfunction. PURPOSE: to compare the prognostic impact of different parameters of RV function and to describe cut-off values of RV size/function and TR severity of poor prognosis. METHODS: Consecutive patients evaluated in the Heart Valve Clinic with significant TR (severe, massive or torrential TR) undergoing a CMR study were included. In addition to parameters of biventricular volume and function, RVS and eRVEF were assessed. A combined endpoint of hospital admission due to right heart failure and cardiovascular mortality was defined. RESULTS: 75 patients were included (age 75 ± 8 years, female 75%). During a median follow-up of 3 years (IQR: 1.4-3.9 years), 39% experienced the endpoint. Cut-off values of worse prognosis were: RVS ≥ -14%, eRVEF ≤34%, RVEF ≤58%, RV-EDV ≥100 ml/m2, TR regurgitant fraction (TRF) ≥40% and TR volume ≥ 42 ml. RVS and eRVEF identified higher rates of RV dysfunction than RVEF. After adjustment for age and LVEF, both eRVEF ≤34% (HR: 5.29 [2.25-12.4]) and RVS ≥ -14% (HR: 3.46 [1.13-9.17]) were significantly associated with outcomes. Among all parameters of RV function, eRVEF was the strongest predictor of outcomes, incremental to RVEF (ΔC-statistic 0.139 [0.040-0.237], p = 0.005). Patients with eRVEF ≤34% and RV-EDV ≥100 ml/m2 or eRVEF ≤34% and TRF ≥40% had the worst prognosis (p < 0.01 for both). CONCLUSION: RVS and eRVEF identify higher rates of RV dysfunction beyond RVEF. Among all measures, eRVEF held the strongest association with outcomes, incremental to RVEF.
Assuntos
Insuficiência da Valva Tricúspide , Disfunção Ventricular Direita , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Espectroscopia de Ressonância Magnética , Volume Sistólico , Sístole , Insuficiência da Valva Tricúspide/diagnóstico por imagem , Insuficiência da Valva Tricúspide/epidemiologia , Disfunção Ventricular Direita/diagnóstico por imagem , Função Ventricular DireitaAssuntos
Coartação Aórtica/cirurgia , Previsões , Complicações Pós-Operatórias/epidemiologia , Stents/efeitos adversos , Procedimentos Cirúrgicos Vasculares/efeitos adversos , Adolescente , Coartação Aórtica/diagnóstico , Criança , Pré-Escolar , Feminino , Seguimentos , Humanos , Incidência , Masculino , Complicações Pós-Operatórias/diagnóstico , Complicações Pós-Operatórias/etiologia , Espanha/epidemiologia , Tomografia Computadorizada por Raios X , Resultado do TratamentoRESUMO
A booster dose of Haemophilus influenzae type b-Neisseria meningitidis serogroup C conjugate (Hib-MenC-TT) vaccine simultaneously administered with measles, mumps, and rubella (MMR) vaccine in 13- to 14-month-old Spanish toddlers, primed with 3 doses of a combined Diphteria-Tetanus-Acellular Pertusis DTPa-Hib-containing vaccine and a MenC-CRM197 conjugate vaccine, had a good reactogenicity profile and induced similar Hib and MenC booster responses and MMR seropositivity rates as the vaccines given alone.
