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BACKGROUND: Pulmonary artery hypertension (PAH) is a chronic and progressive disease. Although current therapy has improved the disease prognosis, PAH has a poor survival rate. The key feature leading to disease progression and death is right ventricular (RV) failure. METHODS AND RESULTS: We assessed the role of trimetazidine, a fatty acid beta-oxidation (FAO) inhibitor, in right ventricular function, remodeling, and functional class in PAH patients, with a placebo-controlled double-blind, case-crossover trial. Twenty-seven PAH subjects were enrolled, randomized, and assigned to trimetazidine or placebo for three months and then reallocated to the other study arm. The primary endpoint was RV morphology and function change after three months of treatment. Secondary endpoints were the change in exercise capacity assessed by a 6 min walk test after three months of treatment and the change in pro-BNP and Galectin-3 plasma levels after three months. Trimetazidine use was safe and well-tolerated. After three months of treatment, patients in the trimetazidine group showed a small but significant reduction of RV diastolic area, and a substantial increase in the 6 min walk distance (418 vs. 438 mt, p = 0.023), without significant changes in biomarkers. CONCLUSIONS: A short course of trimetazidine is safe and well-tolerated on PAH patients, and it is associated with significant increases in the 6MWT and minor but significant improvement in RV remodeling. The therapeutic potential of this drug should be evaluated in larger clinical trials.
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ABSTRACT We describe a 60-year-old woman with post-myocardial infarction (MI) ventricular septal defect (VSD) and cardiogenic shock who was successfully stabilized with veno-arterial extracorporeal membrane oxygenation (VA-ECMO) as a bridge therapy for the surgical closure of her VSD. This case highlights the role of VA-ECMO in the management of post-MI VSD to improve the results of surgical repair and patient survival.
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We describe a 60-year-old woman with post-myocardial infarction (MI) ventricular septal defect (VSD) and cardiogenic shock who was successfully stabilized with veno-arterial extracorporeal membrane oxygenation (VA-ECMO) as a bridge therapy for the surgical closure of her VSD. This case highlights the role of VA-ECMO in the management of post-MI VSD to improve the results of surgical repair and patient survival.
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Oxigenação por Membrana Extracorpórea , Comunicação Interventricular , Humanos , Feminino , Pessoa de Meia-Idade , Choque Cardiogênico/etiologia , Choque Cardiogênico/cirurgia , Oxigenação por Membrana Extracorpórea/métodos , Comunicação Interventricular/cirurgia , Comunicação Interventricular/complicações , Miocárdio , Estudos RetrospectivosRESUMO
En la actualidad existen diferencias en la interpretación y cuantificación de los extrasístoles supraventriculares y ventriculares en el Holter de ritmo cardíaco y no existe siempre una misma definición e interpretación de lo que se denomina como "escaso", "ocasional", "frecuente" o "muy frecuente". El objetivo del presente trabajo ha sido revisar las evidencias actuales y sus fundamentos en relación a la cuantificación o carga de la extrasistolía supraventricular y ventricular en un Holter de ritmo cardíaco, lo que debiera contribuir a una mayor precisión y mejor interpretación de la información cuantitativa en la práctica clínica diaria con este examen. Se revisa en la literatura el concepto de carga de extrasístoles supraventriculares y ventriculares y su relación con eventos clínicos: fibrilación auricular y accidente cerebrovascular en el caso de la extrasistolía supraventricular y mortalidad post infarto y deterioro de la función ventricular en el caso de la extrasistolía ventricular. De esta manera se cuantifica en base a la evidencia la extrasistolía supraventricular y ventricular.
Considerable differences exist in the quantification and clinical significance of both supraventricular and ventricular extrasystoles found in Holter recordings. Usually extrasystoles were classified as rare, occasional, frequent and very frequent. Current publications were analyzed regarding the frequency and clinical significance or these arrhythmias, especially in in relation to prior myocardial infarction, ventricular dysfunction, atrial fibrillation and cerebro vascular events. Tables showing limits to define the severity of supraventricular and ventricular extrasystoles are included.
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Humanos , Eletrocardiografia Ambulatorial/métodos , Complexos Ventriculares Prematuros/diagnóstico , Monitorização Fisiológica/métodos , Arritmias Cardíacas/diagnóstico , Risco , Eletrocardiografia Ambulatorial/instrumentação , Monitorização Fisiológica/instrumentação , Infarto do MiocárdioRESUMO
The objective of this study was to assess the quality of life and psychological wellbeing of adults with congenital heart disease (CHD) in Chile, and to identify other associated factors. The study enrolled 68 patients aged between 18 and 72 (median 29), 35 being females. They completed a questionnaire, which included a quality of life assessment tool (the Medical Outcome Study 36-Item Short Form Health Survey), a number of psychological scales (the General Health Questionnaire, the Basic Psychological Needs Scales and the Beck Hopelessness Scale), a socioeconomic survey, and some clinical data. CHD patients reported worse scores in those scales assessing physical dimensions of quality of life (physical function (70.5), physical role functioning (64), vitality (65.3)), and general quality of life (58.6), than in emotional or social dimensions. Female gender was associated with lower scores in physical function (59.12 versus 82.66; p<0.01) and physical role functioning (53.68 versus 75; p<0.05); poverty was associated with worse results in physical function (61.92 versus 82.96; p<0.01), role physical (53.21 versus 79.63; p<0.01), vitality (60.89 versus 71.67; p<0.05), social role functioning (70.19 versus 82.87; p<0.05) and bodily pain (65.77 versus 81.2; p<0.05). Furthermore, we found that psychological scales had an association with quality of life, but clinical variables did not show significant correlations to any dimension. Poverty has an impact on the quality of life of CHD patients. This population only has a decrease in the quality of life physical dimensions, suggesting that quality of life depends on many different factors.
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Cardiopatias Congênitas/psicologia , Pobreza , Qualidade de Vida , Adolescente , Adulto , Idoso , Chile , Emoções , Feminino , Nível de Saúde , Inquéritos Epidemiológicos , Cardiopatias Congênitas/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Fatores Sexuais , Adulto JovemRESUMO
BACKGROUND: Cardiorespiratory fitness (CRF) is a powerful predictor of mortality. This study evaluated the predictive value of CRF for mortality in Chilean subjects without atherosclerotic disease compared with the Framingham, European Systematic Coronary Risk Evaluation (SCORE), and 2013 ACC/AHA risk scores and determined the incremental predictive value of CRF when added to these scores. HYPOTHESIS: CRF improves prediction of all-cause and cardiovascular disease (CVD)-related mortality of the standard international risk scores. METHODS: Cross-sectional study, which evaluated 4064 subjects between 2002 and 2016. Cardiovascular (CV) risk factors, anthropometric and biochemical parameters, and blood pressure were measured. CRF was determined by metabolic equivalents during maximum stress test. The Framingham, SCORE, and ACC/AHA risk scores were calculated for all subjects. After a median follow-up of 9 years, all-cause and CVD-related mortality were assessed. Receiver operating curves were built to determine mortality prediction for CRF, the risk scores, and CRF added to the scores. RESULTS: As of August 2016, 99 deaths were reported, 33 of which were CVD-related. All risk scores and CRF predicted CVD-related mortality, with CRF identified as the best predictor: CRF: C = 0.88 (95% CI: 0.82-0.93) vs Framingham: C = 0.68 (95% CI: 0.60-0.76), SCORE: C = 0.76 (95% CI: 0.70-0.83), and ACC/AHA: C = 0.79 (95% CI: 0.73-0.85). Predictive power of the three scores improved when CRF was added to the model, but this was only significant for the Framingham score. CONCLUSIONS: CRF is a good predictor of both, all-cause and CV mortality and a better predictor of CVD-related deaths than standard risk scores in this population.
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Aptidão Cardiorrespiratória/fisiologia , Doenças Cardiovasculares/terapia , Medição de Risco/métodos , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/fisiopatologia , Causas de Morte/tendências , Chile/epidemiologia , Estudos Transversais , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Padrões de Referência , Fatores de Risco , Taxa de Sobrevida/tendênciasRESUMO
Several lifestyle and sociodemographic factors are associated with blood pressure (BP). The authors conducted a retrospective study of 4870 subjects from the National Health Survey 2009 in Chile to identify exposure factors associated with increasing BP levels. Subjects with isolated urinary excretion of sodium (n = 2873), potassium, and creatinine were included to estimate daily salt intake and urinary sodium/potassium (Na/K) ratio. Hypertension was defined according to European guidelines 2018 and American guidelines ACC/AHA 2017. Proportional odds models were developed to analyze education level, sedentarism, smoking, alcohol intake, estimated urinary Na/K ratio, estimated daily salt intake, and body mass index (BMI) as factors associated with increasing BP levels (from high-normal BP to hypertension). Logistic regression models were checked for overdispersion. Mean age and BMI of the population were 42 years old and 27 kg/m2 , respectively; 19% had low education level and 27% had hypertension according to European guidelines, whereas 47% according to ACC/AHA criteria. Mean estimated urinary Na/K ratio was 4 ± 2, and mean salt consumption was 10 ± 2 g/day. Estimated urinary Na/K ratio (OR, 1.11; 95% CI, 1.01-1.21), BMI (OR, 1.10; 95% CI, 1.07-1.13), estimated daily salt intake (OR, 1.10; 95% CI, 1.03-1.17), and alcohol intake (OR, 1.03; 95% CI, 1.01-1.05) were significantly associated with hypertension. This study highlights that a healthy diet and weight control should be important components of BP management plans, and it suggests that public policies should include close monitoring of these factors to reduce hypertension prevalence and improve its management in a Latino population.
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Hipertensão , Potássio , Sódio , Adulto , Pressão Sanguínea , Índice de Massa Corporal , Chile/epidemiologia , Estudos Transversais , Inquéritos Epidemiológicos , Humanos , Hipertensão/epidemiologia , Hipertensão/urina , Potássio/urina , Estudos Retrospectivos , Sódio/urinaRESUMO
BACKGROUND: Seventy four percent of Chileans replaced the traditional dinner for the consumption of "five o'clock tea" (5CT), a mealtime that includes bread and is simliar to western breakfast. The latter favors the intake of unhealthy foods. AIM: To study whether the consumption of "5CT", instead of dinner, could be a risk factor for the development of metabolic syndrome (MetSyn). MATERIAL AND METHODS: Anthropometric parameters, mean blood pressure, lipid profile, thyroid stimulating hormone and fasting glucose were measured in 489 subjects aged 39 ± 12 years (33% women) who attended a primary cardiovascular prevention (CV) program. A 24-hour recall and usual meal times were registered during a dietary interview. To determine the association between the consumption of "5CT" or dinner and the probability of presenting two or more components of MetSyn, we built an odds proportional model adjusted by age and sex. In addition, severity for MetSyn was calculated. RESULTS: Nineteen percent of participants had MetSyn and 39%, two or more MetSyn components. Those who consumed "5CT" instead of dinner, had 54% more probability of having 2 or more MetSyn components (Odds ratio = 1.54, confidence intervals 1.032.32, p = 0.04). Participants who included processed carbohydrates in their last meal had a higher probability of having components of MetSyn. This probability decreased among participants who ate dinner with a low proportion of refined carbohydrates. CONCLUSIONS: Subjects who eat "5CT", instead of dinner as the last meal, have a higher cardiometabolic risk and MetSyn severity.
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Dieta/efeitos adversos , Comportamento Alimentar/fisiologia , Refeições/fisiologia , Síndrome Metabólica/etiologia , Chá/metabolismo , Adulto , Fatores Etários , Chile , Estudos Transversais , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Medição de Risco , Fatores de Risco , Índice de Gravidade de Doença , Fatores Sexuais , Inquéritos e QuestionáriosRESUMO
RESUMEN: Introducción: La vía clásica del sistema renina-angiotensina (SRA) está activado en pacientes con hipertensión arterial pulmonar (HAP). Previamente, hemos encontrado que en la disfunción ventricular post infarto al miocardio experimental la activación del eje clásico del SRA, dado por la enzima convertidora de angiotensina I (ECA) y angiotensina (Ang ) II se correlaciona negativamente con el eje paralelo del SRA dado por la ECA homóloga (ECA2) y el péptido vasoactivo y cardioprotector Ang-(1-9). Resultados preclínicos muestran la eficacia de la administración de Ang-(1-9) en el tratamiento del remodelamiento cardiovascular patológico. Hasta la fecha no existen antecedentes de los niveles circulantes de Ang-(1-9) en pacientes con hipertensión arterial pulmonar comparados con sujetos sanos. Objetivo: Determinar los niveles circulantes del péptido vasoactivo y cardiprotector Ang-(1-9) en pacientes con HAP y compararlos con sujetos sanos pareados por edad y sexo. Métodos: Estudio comparativo transversal en pacientes con HAP (grupo I, OMS) con presión de arteria pulmonar media (mPAP) ≥25 mmHg bajo tratamiento con furosemida (40%), espironolactona (53%), Acenocumarol/Warfarina (47%), Bosentan/Ambrisentan (27%), Sildenafil (80%), iloprost (7%) y digoxina (13%). Los sujetos controles correspondieron a sujetos asintomáticos sanos sin enfermedad cardiovascular, cardiopatía estructural ni pulmonar (n=14). En todos los pacientes se determinó mPAP, proBNP, resistencia vascular pulmonar (RVP, WU), presión capilar pulmonar (PCP, mmHg), gasto cardíaco (L/min), capacidad funcional por test de caminata 6 minutos (TC6M), cambio del área fraccional del ventrículo derecho VD (FAC, %). Se utilizó prueba t de Student y programa estadístico SPSS10.0. Un valor de p < 0,05 fue considerado como estadísticamente significativo. Resultados: Los pacientes ingresados al estudio mostraron: etiología de la HAP, idiopática (86,7%), VIH (13,3%), capacidad funcional I (6,2%), II (68,3) y III (25%) y promedio mPAP 51,3±1,9. Pacientes con HAP (grupo I, OMS) versus sujetos sanos mostraron disminución significativa de FAC, actividad plasmática de la ECA2 y niveles circulantes de Ang-(1-9). En la vía clásica del RAAS pacientes con HAP mostraron mayor actividad plasmática de ECA y niveles circulantes e Ag II. Correlaciones significativas se encontraron entre niveles de Ang-(1-9) y mPAP (r = -0.701, p < 0,001) y Ang-(1-9) vs FAC (r = 0.549, p < 0,01). Conclusiones: En pacientes con HAP (grupo I, OMS), los niveles circulantes de Ang-(1-9) están significativamente disminuidos y se asocian inversamente con la PAP, severidad del remodelamiento y disfunción del ventrículo derecho. El uso terapéutico de Ang-(1-9) como agente vasodilatador y cardioprotector podría ser relevante y potencialmente útil, desde una perspectiva clínica, en la HAP. Ang-(1-9) podría reducir la PAP y mejorar el remodelamiento vascular y del ventrículo derecho en la HAP. Por lo tanto, este péptido podría ser útil como blanco terapéutico en la HAP.
ABSTRACTS: Classic renin-angiotensis pathway (RAP) is activated in patients with pulmonary artery hypertension (PAH). We have previously shown that in patients with post myocardial infarction systolic dysfunction the activation of RAP mediated by angiotensin converting enzyme (ACE) and angiotensin II (Ang II) is inversely correlated with the parallel RAP axis mediated by homologous ACE (ACE2) and by the vasoactive and cardioprotective peptide Ang-(1-9). Pre clinical studies show that administration of Ang-(1-9) leads to a favorable ventricular remodelling. At present there is no information regarding levels of Ang-(1-9) in PAH patients compared to healthy subjects. Methods: 16 PAH patients (WHO group 1), with mean PA pressure > 25mmHg being treated with furosemide (40%), Bosentan/Ambrisentan (27%), Sildenafil (80%), iloprost (7%) were compared with healthy subjects (n=14). mPAP, pro BNP, pulmonary vascular resistance (Wu), pulmonary capillary pressure (PCP mmHg), cardiac output (L/min), functional capacity (6 min walking test) (6mWT), and changes in right ventricular fractional area (RV FA), were measured in all subjects. Results: In HAP subjects, the eiotology of PAH was unknown in 87%, or HIV (13%). Functional class was I (6.2 %), II (68.3%) or III (25%). Mean PAP was 51.3±1.9. Compared to healthy subjects, PAH patients had significantly lower RV FA, ACE2 and Ang-(19) levels. Also they had greater ACE plasma activity and AngII circulating levels. Significant correlations were found between Ang-(1-9) and mPAP (-0.701, p < 0,001) and between Ang-(1-9) and RV FA (r = 0.549, p < 0,01). Conclusion: group I PAH subjects, circulating levels of Ang-(1-9) are significantly lower than in healthy subjects and are inversely related to PAP, severity of ventricular remodeling and right ventricular dysfunction. The use of Ang-(1-9) as a vasodilator and cardioprotector agent could be clinically useful in PAH subjects.