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1.
Echocardiography ; 41(6): e15848, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38814015

RESUMO

PURPOSE: Assessment of aortic stenosis (AS) is based on aortic valve (AV) gradients and calculation of aortic valve area (AVA). These parameters are influenced by flow and dependent on geometric assumptions. The dimensionless index (DI), the ratio of the LVOT time-velocity integral to that of the AV jet, is simple to perform, and is less susceptible to error but has only been examined in small selected groups of AS patients. The objective of this study was to assess the DI and prognosis in a large cohort. METHODS: All subjects who underwent echocardiography with an assessment of the AV that included DI were included. Association between AV parameters including mean gradient, AVA, DI and AV resistance and mortality and cardiovascular hospitalizations was examined. RESULTS: A total of 9393 patients (mean age 71 ± 16 years; 53% male) were included. 731 (7.7%) patients had DI less than .25. Increasing age and a diagnosis of heart failure were significantly associated with lower DI. Subjects with low DI had significantly lower ventricular function, a higher incidence of mitral and tricuspid regurgitation, worse diastolic function and more elevated pulmonary pressures. Decreasing DI was associated with significantly decreased survival and event-free survival which remained highly significant on multivariate analysis. CONCLUSIONS: In a large population of patients with AV disease, decreased DI, was associated with increased mortality and decreased event-free survival. The easily obtained DI identifies a broad range of AS subjects with worse prognosis and should be integrated into the assessment of these complex patients.


Assuntos
Estenose da Valva Aórtica , Humanos , Masculino , Feminino , Idoso , Prognóstico , Estenose da Valva Aórtica/fisiopatologia , Estenose da Valva Aórtica/diagnóstico por imagem , Valva Aórtica/diagnóstico por imagem , Valva Aórtica/fisiopatologia , Ecocardiografia/métodos , Taxa de Sobrevida , Valvopatia Aórtica/fisiopatologia , Valvopatia Aórtica/complicações , Reprodutibilidade dos Testes , Índice de Gravidade de Doença , Estudos Retrospectivos
2.
Cardiology ; 148(3): 278-286, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37080172

RESUMO

INTRODUCTION: Tricuspid regurgitation (TR) is a common finding which appears to be associated with a worse prognosis. There are conflicting data regarding the prognostic impact of mild TR. We examined the clinical characteristics and echocardiographic properties of subjects with TR and its impact on clinical outcome with particular emphasis on subjects with mild TR. METHODS: Consecutive echocardiography examinations during 5 years were evaluated for TR severity and outcome including mortality and cardiovascular hospitalizations. RESULTS: The study included 21,429 subjects; 45% of the subjects had mild TR, 15% had moderate TR, and 6.5% had severe TR. Primary organic TR was evident in 7% of the subjects, a percentage that increased with increasing TR severity. TR severity was incrementally associated with older subjects with an increasing number of comorbidities and echocardiographic abnormalities. 29% of the subjects died at a median follow-up duration of 8.7 years. Increasing severity of TR was independently and incrementally associated with mortality. Subjects with mild TR had a 25% increased mortality rate compared to subjects with minimal TR (HR 1.25, 95% CI: 1.12-1.39, p < 0.001) after adjustment for significant clinical parameters. TR severity was also an independent incrementally graded predictor of cardiovascular hospitalization and mortality (mild TR: HR 1.23, 95% CI: 1.12-1.34, p < 0.001). CONCLUSIONS: TR is associated with older and sicker patients with numerous comorbidities. TR severity is a predictor of a worse clinical outcome. Mild TR was independently associated with decreased survival. TR should be considered a marker of a disease burden with a poor prognosis.


Assuntos
Insuficiência da Valva Tricúspide , Humanos , Insuficiência da Valva Tricúspide/diagnóstico por imagem , Estudos Retrospectivos , Ecocardiografia , Prognóstico , Comorbidade , Índice de Gravidade de Doença
3.
Echocardiography ; 40(7): 608-614, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-37232516

RESUMO

BACKGROUND: Left ventricular ejection fraction (EF) is the most commonly used echocardiographic measurement of LV systolic function. Myocardial contraction fraction (MCF) may be a more accurate assessment of LV systolic function than EF. Limited data are available regarding the prognostic value of MCF compared to EF in a population referred for echocardiography. OBJECTIVES: To assess whether MCF was predictive of all-cause mortality in a population referred for echocardiography. METHODS: All consecutive subjects undergoing echocardiography in a university-affiliated laboratory during a 5-year period were retrieved for analysis. MCF was calculated by dividing LV stroke volume (LV end diastolic volume-LV end systolic volume) by LV myocardial volume and multiplied by 100. All cause mortality was the primary endpoint. Multivariate Cox proportional hazards regression analysis was used to evaluate independent variables associated with survival. RESULTS: 18,149 continuous subjects (median age 60 years, 53% male) were included. Median MCF in the cohort was 52% (interquartile range 40-64) while median EF was 64% (56-69). Any reduction in MCF from a value of 60 was significantly associated with survival on multivariable analysis. When echo parameters including EF, e:e', elevated TR gradient and significant MR were added to the model, MCF less than 50% remained significantly associated with mortality. MCF was also independently associated with both death and cardiovascular hospitalization. The AUC for MCF was .66 (95% confidence interval (CI): .65-.67) while for EF the AUC was only .58 (95% CI: .57-.59), a statistically significant difference (p < .0001). CONCLUSIONS: Reduced MCF is independently associated with mortality in a large population referred for echocardiography.


Assuntos
Disfunção Ventricular Esquerda , Função Ventricular Esquerda , Humanos , Masculino , Pessoa de Meia-Idade , Feminino , Volume Sistólico , Ecocardiografia , Contração Miocárdica , Miocárdio , Prognóstico
4.
Eur Heart J ; 43(41): 4362-4373, 2022 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-35900838

RESUMO

AIMS: To investigate the impact of patiromer on the serum potassium level and its ability to enable specified target doses of renin-angiotensin-aldosterone system inhibitor (RAASi) use in patients with heart failure and reduced ejection fraction (HFrEF). METHODS AND RESULTS: A total of 1642 patients with HFrEF and current or a history of RAASi-related hyperkalemia were screened and 1195 were enrolled in the run-in phase with patiromer and optimization of the RAASi therapy [≥50% recommended dose of angiotensin-converting enzyme inhibitor/angiotensin receptor blocker/angiotensin receptor-neprilysin inhibitor, and 50 mg of mineralocorticoid receptor antagonist (MRA) spironolactone or eplerenone]. Specified target doses of the RAASi therapy were achieved in 878 (84.6%) patients; 439 were randomized to patiromer and 439 to placebo. All patients, physicians, and outcome assessors were blinded to treatment assignment. The primary endpoint was between-group difference in the adjusted mean change in serum potassium. Five hierarchical secondary endpoints were assessed. At the end of treatment, the median (interquartile range) duration of follow-up was 27 (13-43) weeks, the adjusted mean change in potassium was +0.03 mmol/l in the patiromer group and +0.13 mmol/l in the placebo group [difference in the adjusted mean change between patiromer and placebo: -0.10 mmol/l (95% confidence interval, CI -0.13, 0.07); P < 0.001]. Risk of hyperkalemia >5.5 mmol/l [hazard ratio (HR) 0.63; 95% CI 0.45, 0.87; P = 0.006), reduction of MRA dose (HR 0.62; 95% CI 0.45, 0.87; P = 0.006), and total adjusted hyperkalemia events/100 person-years (77.7 vs. 118.2; HR 0.66; 95% CI 0.53, 0.81; P < 0.001) were lower with patiromer. Hyperkalemia-related morbidity-adjusted events (win ratio 1.53, P < 0.001) and total RAASi use score (win ratio 1.25, P = 0.048) favored the patiromer arm. Adverse events were similar between groups. CONCLUSION: Concurrent use of patiromer and high-dose MRAs reduces the risk of recurrent hyperkalemia (ClinicalTrials.gov: NCT03888066).


Assuntos
Insuficiência Cardíaca , Hiperpotassemia , Humanos , Hiperpotassemia/tratamento farmacológico , Hiperpotassemia/complicações , Insuficiência Cardíaca/complicações , Insuficiência Cardíaca/tratamento farmacológico , Volume Sistólico , Antagonistas de Receptores de Mineralocorticoides/efeitos adversos , Sistema Renina-Angiotensina , Potássio
5.
Eur J Clin Invest ; 52(1): e13655, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34293203

RESUMO

BACKGROUND: Increased weight measured by body mass index is associated with better clinical outcomes in heart failure (HF). The effect of specific components of body mass on outcome is limited. We evaluated the impact of fat-free mass and fat mass on mortality and cardiovascular hospitalization in a large real-world cohort of patients with chronic HF. METHODS: Body measurements were assessed in patients with chronic HF. Fat-free mass, fat mass and waist circumference were calculated based on specifically derived formulas. RESULTS: The cohort included 6328 HF patients. Mean follow-up was 744 days. Increased body composition indices including body mass index, fat-free mass index and fat mass index, per cent body fat and waist circumference were associated with better survival. Cox regression analysis after adjustment for other significant parameters demonstrated that these indices were all associated with improved survival. The strongest association was seen with fat-free mass index with a graded increase in survival; lowest death in the highest quartile compared to reference second quartile (hazard ratio 0.79, 95% confidence interval 0.67-0.93, P < .01). There was no interaction with sex or HF type. Analysis of the clinical outcome of death and cardiovascular hospitalization demonstrated that a worse prognosis was in the lowest quartile of all the indices. A sensitivity analysis, analysing these indices as continuous parameters using restricted cubic splines, demonstrated a clear continuous association between these indices and increased survival in both sexes. CONCLUSIONS: Body mass including fat-free mass and fat mass was associated with improved survival in patients with HF.


Assuntos
Tecido Adiposo , Índice de Massa Corporal , Insuficiência Cardíaca/mortalidade , Idoso , Idoso de 80 Anos ou mais , Doença Crônica , Estudos de Coortes , Feminino , Insuficiência Cardíaca/terapia , Hospitalização , Humanos , Masculino , Pessoa de Meia-Idade
6.
Isr Med Assoc J ; 24(3): 140-143, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35347924

RESUMO

BACKGROUND: Cancer patients with heart failure (HF) and severe mitral regurgitation (MR) are often considered to be at risk for surgical mitral valve repair/replacement. Severe MR inducing symptomatic HF may prevent delivery of potentially cardiotoxic chemotherapy and complicate fluid management with other cancer treatments. OBJECTIVES: To evaluate the outcome of percutaneous mitral valve repair (PMVR) in oncology patients with HF and significant MR. METHODS: Our study comprised 145 patients who underwent PMVR, MitraClip, at Hadassah Medical Center between August 2015 and September 2019, including 28 patients who had active or history of cancer. Data from 28 cancer patients were compared to 117 no-cancer patients from the cohort. RESULTS: There was no significant difference in the mean age of cancer patients and no-cancer patients (76 vs. 80 years, P = 0.16); 67% of the patients had secondary (functional) MR. Among cancer patients, 21 had solid tumor and 7 had hematologic malignancies. Nine patients (32%) had active malignancy at the time of PMVR. The mean short-term risk score of the patients was similar in the two groups, as were both 30-day and 1-year mortality rates (7% vs. 4%, P = 0.52) and (29% vs. 16%, P = 0.13), respectively. CONCLUSIONS: PMVR in cancer patients is associated with similar 30-day and 1-year survival rate compared with patients without cancer. PMVR should be considered for cancer patients presenting with HF and severe MR and despite their malignancy. This approach may allow cancer patients to safely receive planned oncological treatment.


Assuntos
Insuficiência Cardíaca , Implante de Prótese de Valva Cardíaca , Insuficiência da Valva Mitral , Neoplasias , Insuficiência Cardíaca/terapia , Implante de Prótese de Valva Cardíaca/efeitos adversos , Humanos , Valva Mitral/cirurgia , Insuficiência da Valva Mitral/complicações , Insuficiência da Valva Mitral/cirurgia , Neoplasias/complicações , Resultado do Tratamento
7.
Isr Med Assoc J ; 24(7): 475-479, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35819218

RESUMO

BACKGROUND: Advanced heart failure (HF) carries a high rate of recurrent HF hospitalizations and a very high mortality rate. Mechanical devices and heart transplantation are limited to a select few. Dialysis may be a good alternative for advanced HF patients with volume overload despite maximal pharmacological therapy. OBJECTIVES: To assess the net clinical outcome of peritoneal dialysis or hemodialysis in patients with advanced HF. METHODS: We analyzed all advanced HF patients who were referred for dialysis due to volume overload in our institution. Patients were followed for complications, HF hospitalizations, and survival. RESULTS: We assessed 35 patients; 10 (29%) underwent peritoneal dialysis and 25 (71%) underwent hemodialysis; 71% were male; median (interquartile range) age was 74 (67-78) years. Estimated glomerular filtration rate was 20 (13-32) ml/min per 1.73 m2. New York Heart Association functional capacity was III. Median follow-up time was 719 days (interquartile range 658-780). One-year mortality rate was 8/35 (23%) and overall mortality rate was 16/35 (46%). Three patients (9%) died during the first year due to line or peritoneal dialysis related sepsis, and 6 (17%) died during the entire follow-up. The median number of HF hospitalizations was significantly reduced during the year on dialysis compared to the year prior to dialysis (0.0 [0.0-1.0] vs. 2.0 [0.0-3.0], P < 0.001). CONCLUSIONS: Dialysis is reasonably safe and significantly reduced HF hospitalization in advanced HF patients. Dialysis could be a good alternative for advanced HF patients with intractable volume overload.


Assuntos
Insuficiência Cardíaca , Diálise Peritoneal , Desequilíbrio Hidroeletrolítico , Idoso , Feminino , Taxa de Filtração Glomerular , Insuficiência Cardíaca/complicações , Insuficiência Cardíaca/terapia , Hospitalização , Humanos , Masculino , Diálise Renal
8.
Eur J Clin Invest ; 51(2): e13373, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-32780431

RESUMO

INTRODUCTION: Heart failure (HF) and cancer are medical conditions with a rising prevalence resulting in increased co-occurrence. We assessed the impact of cancer on clinical outcome in patients with HF and the prognostic impact of specific types of cancers on different HF subpopulations. METHODS: All patients with HF were evaluated for the occurrence of malignant neoplasm at a health maintenance organization and were followed for cardiac-related hospitalizations and death. RESULTS: The study cohort included 7106 HF patients, 1564 of them (22%) had a diagnosis of malignant neoplasm. HF patients with concomitant cancer were older, had more comorbidities and were more likely to have NYHA class III/IV (42% vs. 37%, P < .01), compared with patients with no malignancy. The overall 2-year mortality rate of the entire HF cohort was 23.2%. Survival rate by Kaplan-Meier analysis demonstrated that the presence of a malignancy was directly associated with reduced survival: 67.2 ± 1.2% vs 79.5 ± 0.5%, P < .001. Malignancy was associated with an increase in mortality with a hazard ratio (HR) of 1.36, 95% confidence interval (CI) 1.21-1.54, P < .001. The strongest impact of malignancy on outcomes was related to age; among patients <70 years old, the increase in the risk of mortality was the highest with a HR of 2.07, 95% CI 1.54-2.80, P < .001. CONCLUSIONS: Malignancy is common among patients with HF. Patients with concomitant HF and malignancies have poor outcomes, and the impact of cancer on outcome is stronger among young patients.


Assuntos
Insuficiência Cardíaca/epidemiologia , Hospitalização/estatística & dados numéricos , Mortalidade , Neoplasias/epidemiologia , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Assistência Ambulatorial , Comorbidade , Feminino , Humanos , Estimativa de Kaplan-Meier , Masculino , Prevalência , Modelos de Riscos Proporcionais
9.
Catheter Cardiovasc Interv ; 97(6): E868-E874, 2021 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-32865879

RESUMO

INTRODUCTION: Percutaneous mitral valve repair (PMVR), such as MitraClip, is performed on high-risk patients and involves hemodynamic alternations that may cause acute kidney injury (AKI). We aimed to evaluate the incidence of AKI, predictors for developing AKI and the correlation with mortality after MitraClip. METHODS: We performed a retrospective analysis of collected data from patients who underwent PMVR in two tertiary medical centers in Israel to identify factors associated with AKI. RESULTS: The study population included 163 patients. The median age was 77 years; 60.7% of patients were male. The median eGFR significantly decreased post-procedure from 49 (35-72) to 47.8 (31-65.5) ml/min/1.73 m2 (p < .001). Forty-seven patients (29%) developed AKI. None of the patients who developed AKI required hemodialysis. Predictors of AKI included: baseline eGFR ≤30 ml/min/1.73 m2 , severity of residual MR, TMPG>5 mmHg, diuretic use, and re-do procedures. Among the patients who developed AKI there was an improvement in kidney function during follow-up, and creatinine levels significantly decreased from a peak mean creatinine of 179.5 (143-252) mmol/l to 136 (92-174) mmol/l (p < .001). However, 19% (9 out of 47) of patients experienced partial recovery and their creatinine level, when compared to their baseline, remained elevated. One-year survival showed a trend for increased mortality among patients who developed AKI (86.2% vs. 80.9%, p = .4), and patients who developed AKI that persisted had increased 1-year mortality compared with patients that had recovered their kidney function (86.8% vs. 55.6%, p = .01). CONCLUSION: The incidence of AKI after MitraClip is high. AKI is reversible in most patients; however, the persistence of kidney injury is associated with increased 1-year mortality.


Assuntos
Injúria Renal Aguda , Insuficiência da Valva Mitral , Injúria Renal Aguda/diagnóstico , Injúria Renal Aguda/epidemiologia , Injúria Renal Aguda/etiologia , Idoso , Humanos , Masculino , Valva Mitral/diagnóstico por imagem , Valva Mitral/cirurgia , Insuficiência da Valva Mitral/diagnóstico por imagem , Insuficiência da Valva Mitral/cirurgia , Estudos Retrospectivos , Resultado do Tratamento
10.
J Clin Periodontol ; 47(3): 268-288, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-32011025

RESUMO

BACKGROUND: In Europe cardiovascular disease (CVD) is responsible for 3.9 million deaths (45% of deaths), being ischaemic heart disease, stroke, hypertension (leading to heart failure) the major cause of these CVD related deaths. Periodontitis is also a chronic non-communicable disease (NCD) with a high prevalence, being severe periodontitis, affecting 11.2% of the world's population, the sixth most common human disease. MATERIAL AND METHODS: There is now a significant body of evidence to support independent associations between severe periodontitis and several NCDs, in particular CVD. In 2012 a joint workshop was held between the European Federation of Periodontology (EFP) and the American Academy of Periodontology to review the literature relating periodontitis and systemic diseases, including CVD. In the last five years important new scientific information has emerged providing important emerging evidence to support these associations RESULTS AND CONCLUSIONS: The present review reports the proceedings of the workshop jointly organised by the EFP and the World Heart Federation (WHF), which has updated the existing epidemiological evidence for significant associations between periodontitis and CVD, the mechanistic links and the impact of periodontal therapy on cardiovascular and surrogate outcomes. This review has also focused on the potential risk and complications of periodontal therapy in patients on anti thrombotic therapy and has made recommendations for dentists, physicians and for patients visiting both the dental and medical practices.


Assuntos
Doenças Cardiovasculares/epidemiologia , Doenças Periodontais , Periodontite/complicações , Periodontite/epidemiologia , Periodontite/terapia , Consenso , Europa (Continente)/epidemiologia , Humanos , Periodontia
11.
J Electrocardiol ; 59: 122-125, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32062381

RESUMO

INTRODUCTION: Cardiac involvement is a leading cause of morbidity and mortality in primary light chain (AL) amyloidosis. The electrocardiographic spatial QRS-T angle reflects changes in the direction of the repolarization sequence and is a powerful predictor of outcome in patients with heart failure. We examined the significance of the frontal QRS-T angle in predicting the clinical outcome in patients with AL cardiac amyloidosis. METHODS: Forty-three consecutive patients with cardiac involvement of AL amyloidosis were studied. Patients were followed for survival. RESULTS: Patient median age was 62 years, 56% were males. After a median follow up of 56 months, 16 out of 43 patients had died (37%). The median QRS-T angle was 102° (interquartile range 35-148). QRS-T angle>102° was associated with increased prevalence of lambda free light chain disease and the presence of a pleural effusion. It was also associated with increased interventricular septum thickness, smaller left ventricle end-diastolic diameter, echocardiographic myocardial sparkling texture, pericardial effusion, elevated NT-Pro-BNP and increased restrictive physiology evident by increased E/A and E/e`. A QRS-T angle>102° was a significant predictor of increased mortality by Kaplan-Meier survival analysis (71.6 ± 11.1% vs. 45.7 ± 11.1%, P = .02). A QRS-T angle>102° was an independent predictor of mortality by Cox regression analysis (HR 3.00, 95% CI 1.01-8.89, P < .05). CONCLUSIONS: The QRS-T angle is associated with indices of advanced amyloid disease and is an independent predictor of survival.


Assuntos
Amiloidose , Amiloidose de Cadeia Leve de Imunoglobulina , Amiloidose/diagnóstico , Eletrocardiografia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico
12.
Isr Med Assoc J ; 22(1): 8-12, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31927798

RESUMO

BACKGROUND: Heart failure centers with specialized nurse-supervised management programs have been proposed to improve prognosis. The Heart Failure Center in Beit Shemesh, Israel, is located within a large primary care facility. The specialist team supervised the managememt of patients both within the frame of the center and while they were hospitalized. OBJECTIVES: To evaluate the health services utilization by heart failure patients treated at a heart failure center and their clinical outcome. METHODS: In this retrospective study, we compared the clinical outcome of patients treated at a heart failure center to patients who received the standard care in 2013-2014. The clinical outcome included primary care visits, emergency room visits, hospitalizations, and death. RESULTS: The study comprised 430 heart failure patients; 82 were treated at the heart failure center and 348 under standard care. At baseline, no significant differences were seen in clinical parameters between the groups. Healthcare utilization was higher among the study group. No significant changes in healthcare utilization were found. During follow-up, patients treated in a heart failure center were more likely to get recommended heart failure medications. Mortality was significantly lower in patients treated in the heart failure center compared with those receiving standard care 3.6% vs. 24%, respectively (P = 0.001), hazard ratio 0.19, 95% confidence interval 0.06-0.62, P = 0.005. CONCLUSIONS: Joint management of heart failure by primary clinics and a specialized community heart failure center reduced mortality. There was no decrease in healthcare utilizations among heart failure center patients, despite the reduction in mortality.


Assuntos
Centros Comunitários de Saúde/estatística & dados numéricos , Insuficiência Cardíaca/terapia , Idoso , Serviço Hospitalar de Emergência/estatística & dados numéricos , Feminino , Insuficiência Cardíaca/mortalidade , Hospitalização/estatística & dados numéricos , Humanos , Masculino , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Atenção Primária à Saúde/estatística & dados numéricos , Estudos Retrospectivos
13.
Circulation ; 137(10): 1015-1023, 2018 03 06.
Artigo em Inglês | MEDLINE | ID: mdl-29191938

RESUMO

BACKGROUND: Identification of people with hypertrophic cardiomyopathy (HCM) who are at risk of sudden cardiac death (SCD) and require a prophylactic implantable cardioverter defibrillator is challenging. In 2014, the European Society of Cardiology proposed a new risk stratification method based on a risk prediction model (HCM Risk-SCD) that estimates the 5-year risk of SCD. The aim was to externally validate the 2014 European Society of Cardiology recommendations in a geographically diverse cohort of patients recruited from the United States, Europe, the Middle East, and Asia. METHODS: This was an observational, retrospective, longitudinal cohort study. RESULTS: The cohort consisted of 3703 patients. Seventy three (2%) patients reached the SCD end point within 5 years of follow-up (5-year incidence, 2.4% [95% confidence interval {CI}, 1.9-3.0]). The validation study revealed a calibration slope of 1.02 (95% CI, 0.93-1.12), C-index of 0.70 (95% CI, 0.68-0.72), and D-statistic of 1.17 (95% CI, 1.05-1.29). In a complete case analysis (n= 2147; 44 SCD end points at 5 years), patients with a predicted 5-year risk of <4% (n=1524; 71%) had an observed 5-year SCD incidence of 1.4% (95% CI, 0.8-2.2); patients with a predicted risk of ≥6% (n=297; 14%) had an observed SCD incidence of 8.9% (95% CI, 5.96-13.1) at 5 years. For every 13 (297/23) implantable cardioverter defibrillator implantations in patients with an estimated 5-year SCD risk ≥6%, 1 patient can potentially be saved from SCD. CONCLUSIONS: This study confirms that the HCM Risk-SCD model provides accurate prognostic information that can be used to target implantable cardioverter defibrillator therapy in patients at the highest risk of SCD.


Assuntos
Cardiologia , Cardiomiopatia Hipertrófica/epidemiologia , Morte Súbita Cardíaca/prevenção & controle , Cardiomiopatia Hipertrófica/complicações , Cardiomiopatia Hipertrófica/diagnóstico , Estudos de Coortes , Morte Súbita Cardíaca/etiologia , Desfibriladores Implantáveis/estatística & dados numéricos , Europa (Continente)/epidemiologia , Seguimentos , Humanos , Incidência , Guias de Prática Clínica como Assunto , Prognóstico , Projetos de Pesquisa , Estudos Retrospectivos , Risco , Sociedades Médicas
14.
Cell Physiol Biochem ; 53(3): 550-572, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31529928

RESUMO

BACKGROUND/AIMS: Atherosclerosis underlies the majority of cardiovascular events, consequent to non-resolving inflammation. Considerable evidence implicates autophagy dysfunction at the core of this inflammatory condition, but the basis of this dysfunction is not fully understood. METHODS: Using an in vitro model of lipid-laden macrophages, activity-based probes and high-throughput techniques, we studied the role of the cysteine proteases cathepsins in autophagy. RESULTS: We showed that cathepsin activity is suppressed by oxidized lipids and that cathepsin has an indispensable role in the autophagy-lysosomal degradation pathway. Accordingly, loss of cathepsin function resulted in autophagy derangement. Shotgun proteomics confirmed autophagy dysfunction and unveiled a pivotal role of cathepsin L in a putative cathepsin degradation network. At the physiological level, cathepsin inhibition resulted in mitochondrial stress, which translated into impaired oxidative metabolism, excessive production of reactive oxygen species and activation of the cellular stress response, driven by ATF4-CHOP transcription factors. In addition, transcriptomic analysis of these cells uncovered some genetic similarities with the inflammatory macrophage phenotype (a.k.a M1 macrophages) and increased expression of inflammatory cytokines. CONCLUSION: Our data highlight the importance of cathepsins for mitochondrial quality control mechanisms and amelioration of vascular inflammation.


Assuntos
Anti-Inflamatórios/farmacologia , Catepsina B/metabolismo , Catepsina L/metabolismo , Catepsinas/metabolismo , Macrófagos/metabolismo , Animais , Autofagia/efeitos dos fármacos , Células da Medula Óssea/citologia , Catepsina B/antagonistas & inibidores , Catepsina L/antagonistas & inibidores , Células Cultivadas , Colesterol/metabolismo , Humanos , Macrófagos/efeitos dos fármacos , Masculino , Espectrometria de Massas , Camundongos , Camundongos Knockout , Mitocôndrias/efeitos dos fármacos , Mitocôndrias/metabolismo , Dinâmica Mitocondrial , Estresse Oxidativo/efeitos dos fármacos , Proteômica/métodos , Células RAW 264.7 , Espécies Reativas de Oxigênio/metabolismo
15.
J Card Fail ; 24(1): 3-8, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-29158065

RESUMO

BACKGROUND: Acute myocarditis carries a variable prognosis. We evaluated the morbidity and mortality rates in patients with acute myocarditis and admission electrocardiographic predictors of outcome. METHODS AND RESULTS: Patients admitted to a tertiary hospital with a clinical diagnosis of acute myocarditis were evaluated; 193 patients were included. Median follow-up was 5.7 years, 82% were male, and overal median age was 30 years (range 21-39). The most common clinical presentations were chest pain (77%) and fever (53%). The 30-day survival rate was 98.9%. Overall survival during follow-up was 94.3%. The most common abnormalities observed on electrocardiography were T-wave changes (36%) and ST-segment changes (32%). Less frequent changes included abnormal T-wave axis (>105° or < -15°; 16%), abnormal QRS axis (12%), QTc >460 ms (11%), and QRS interval ≥120 ms (5%). Wide QRS-T angle (≥100°) was demonstrated in 13% of the patients and was associated with an increased mortality rate compared with patients with a narrow QRS-T angle (20% vs 4%; P = .007). The rate of heart failure among patients with a wide QRS-T angle was significantly higher (36% vs 10%; P = .001). Cox regression analysis demonstrated that a wide QRS-T angle (≥100°) was a significant independent predictor of heart failure (hazard ratio [HR] 3.20, 95% confidence interval [CI] 1.35-7.59; P < .01) and of the combined end point of death or heart failure (HR 2.56, 95% CI 1.14-5.75; P < .05). CONCLUSIONS: QRS-T angle is a predictor of increased morbidity and mortality in acute myocarditis.


Assuntos
Eletrocardiografia/mortalidade , Miocardite/mortalidade , Miocardite/fisiopatologia , Doença Aguda , Adulto , Eletrocardiografia/tendências , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Morbidade/tendências , Mortalidade/tendências , Miocardite/diagnóstico , Valor Preditivo dos Testes , Estudos Retrospectivos , Adulto Jovem
16.
Catheter Cardiovasc Interv ; 92(3): 574-582, 2018 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-29602220

RESUMO

OBJECTIVES: To evaluate the role mitral regurgitation (MR) etiology and severity play in outcomes for patients undergoing transcatheter aortic valve replacement (TAVR). BACKGROUND: Multiple prior studies have investigated the influence of MR severity on outcomes for patients undergoing TAVR. Less has been published regarding the effects of MR etiology on outcomes, including its impact on heart failure hospitalization. METHODS: Two hundred and seventy patients undergoing TAVR at 2 hospitals were enrolled. Each patient had a baseline and follow-up (within 30 days of TAVR) echocardiogram that was analyzed. MR was graded as none, mild, moderate, or severe, as well as functional or degenerative. We compared patient outcomes, including death and heart failure hospitalization, among none-mild MR, moderate-severe functional MR, and moderate-severe degenerative MR groups. RESULTS: Two hundred and seventy patients underwent TAVR, reducing mean aortic valve gradients from 45 ± 15 mm Hg to 9 ± 4 mm Hg. On multivariable analysis, only patients with moderate-severe degenerative MR had decreased survival free of death or CHF hospitalization compared to those with none-mild MR (P = .011). Subanalysis showed patients with moderate-severe degenerative MR were more likely to be hospitalized for heart failure at 2 years compared to those with moderate-severe functional MR (P = .02). Patients with moderate-severe degenerative MR were also less likely to have improvement in MR severity at follow up (P = .01). CONCLUSIONS: Special consideration should be given to patients with moderate-severe degenerative MR undergoing TAVR. As transcatheter approaches for mitral valve repair and replacement continue to evolve, moderate-severe degenerative MR patients may benefit from consideration of double valve intervention.


Assuntos
Estenose da Valva Aórtica/cirurgia , Valva Aórtica/cirurgia , Insuficiência Cardíaca/etiologia , Insuficiência da Valva Mitral/fisiopatologia , Valva Mitral/fisiopatologia , Substituição da Valva Aórtica Transcateter/efeitos adversos , Idoso , Idoso de 80 Anos ou mais , Valva Aórtica/fisiopatologia , Estenose da Valva Aórtica/complicações , Estenose da Valva Aórtica/mortalidade , Estenose da Valva Aórtica/fisiopatologia , Feminino , Georgia , Insuficiência Cardíaca/mortalidade , Insuficiência Cardíaca/fisiopatologia , Insuficiência Cardíaca/terapia , Hemodinâmica , Humanos , Israel , Masculino , Valva Mitral/diagnóstico por imagem , Insuficiência da Valva Mitral/complicações , Insuficiência da Valva Mitral/mortalidade , Readmissão do Paciente , Recuperação de Função Fisiológica , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Índice de Gravidade de Doença , Fatores de Tempo , Substituição da Valva Aórtica Transcateter/mortalidade , Resultado do Tratamento
17.
Isr Med Assoc J ; 19(4): 225-230, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28480675

RESUMO

BACKGROUND: The treatment of patients hospitalized with heart failure (HHF) and ambulatory chronic heart failure (CHF) differs in various countries. OBJECTIVES: To evaluate the management and outcomes of patients with HFF and CHF in Israel compared to those in other European countries who were included in the ESC-HF Long-Term Registry. METHODS: From May 2011 to April 2013, heart failure patients - 467 Israelis and 11,973 from other countries - were evaluated. The Israeli patients included 178 with HHF and 289 with CHF. One year outcomes, including all-cause and cardiovascular mortality as well as HHF, were evaluated. RESULTS: The HHF Israeli patients were older than their CHF Israeli counterparts, had more co-morbidities, included more women, and were treated less frequently with medications suggested by European guidelines. The Israeli HHF patients had similar all-cause 1 year mortality rates compared to HHF patients from other participating countries, but their cardiovascular (CV) mortality was lower, while a significantly higher rate of all-cause and HHF was noted. The Israeli CHF patients were older, suffered from more co-morbidities and had prior cardio-electronic implantable devices. In addition, they had higher mortality rates, especially non-CV, and were more frequently hospitalized, compared to CHF patients from other countries. CONCLUSIONS: The Israeli patients with heart failure differed in their baseline characteristics and the therapeutic approach. Despite high usage of treatments recommended by official guidelines, especially among CHF patients, mortality, particularly in HHF patients, remained high.


Assuntos
Assistência Ambulatorial , Insuficiência Cardíaca , Hospitalização/estatística & dados numéricos , Administração dos Cuidados ao Paciente , Antagonistas Adrenérgicos beta/uso terapêutico , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Assistência Ambulatorial/métodos , Assistência Ambulatorial/estatística & dados numéricos , Inibidores da Enzima Conversora de Angiotensina/uso terapêutico , Europa (Continente)/epidemiologia , Feminino , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/epidemiologia , Insuficiência Cardíaca/mortalidade , Insuficiência Cardíaca/terapia , Humanos , Israel/epidemiologia , Masculino , Pessoa de Meia-Idade , Mortalidade , Multimorbidade , Administração dos Cuidados ao Paciente/métodos , Administração dos Cuidados ao Paciente/estatística & dados numéricos , Sistema de Registros/estatística & dados numéricos , Fatores Sexuais
18.
Isr Med Assoc J ; 15(3): 180-5, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23662385

RESUMO

Acute myocarditis is one of the most challenging diseases to diagnose and treat in cardiology. The true incidence of the disease is unknown. Viral infection is the most common etiology. Modern techniques have improved the ability to diagnose specific viral pathogens in the myocardium. Currently, parvovirus B19 and adenoviruses are most frequently identified in endomyocardial biopsies. Most patients will recover without sequelae, but a subset of patients will progress to chronic inflammatory and dilated cardiomyopathy. The pathogenesis includes direct viral myocardial damage as well as autoimmune reaction against cardiac epitopes. The clinical manifestations of acute myocarditis vary widely--from asymptomatic changes on electrocardiogram to fulminant heart failure, arrhythmias and sudden cardiac death. Magnetic resonance imaging is emerging as an important tool for the diagnosis and follow-up of patients, and for guidance of endomyocardial biopsy. In the setting of acute myocarditis endomyocardial biopsy is required for the evaluation of patients with a clinical scenario suggestive of giant cell myocarditis and of those who deteriorate despite supportive treatment. Treatment of acute myocarditis is still mainly supportive, except for giant cell myocarditis where immunotherapy has been shown to improve survival. Immunotherapy and specific antiviral treatment have yet to demonstrate definitive clinical efficacy in ongoing clinical trials. This review will focus on the clinical manifestations, the diagnostic approach to the patient with clinically suspected acute myocarditis, and an evidence-based treatment strategy for the acute and chronic form of the disease.


Assuntos
Antivirais/uso terapêutico , Cardiomiopatia Dilatada , Imunoterapia/métodos , Miocardite , Miocárdio , Viroses , Doença Aguda , Adenoviridae/isolamento & purificação , Biópsia , Cardiomiopatia Dilatada/etiologia , Cardiomiopatia Dilatada/imunologia , Cardiomiopatia Dilatada/prevenção & controle , Ensaios Clínicos como Assunto , Morte Súbita Cardíaca/patologia , Morte Súbita Cardíaca/prevenção & controle , Progressão da Doença , Eletrocardiografia , Prática Clínica Baseada em Evidências , Insuficiência Cardíaca/etiologia , Humanos , Imageamento por Ressonância Magnética , Miocardite/diagnóstico , Miocardite/mortalidade , Miocardite/fisiopatologia , Miocardite/terapia , Miocardite/virologia , Miocárdio/imunologia , Miocárdio/patologia , Parvovirus B19 Humano/isolamento & purificação , Viroses/complicações , Viroses/diagnóstico
19.
Am J Cardiol ; 187: 119-126, 2023 01 15.
Artigo em Inglês | MEDLINE | ID: mdl-36459734

RESUMO

A hyperdynamic heart is defined as a left ventricular (LV) with an ejection fraction (EF) above the normal range. Is this favorable? We looked at the diastolic properties of subjects with a hyperdynamic heart and its impact on outcome. Consecutive echocardiography examinations during 5 years were evaluated by EF subgroups, including a hyperdynamic heart (EF >70%). All examinations with significant LV hypertrophy or valve disease were excluded. The study included 16,994 subjects. A total of 720 subjects (4.2%) had a hyperdynamic heart. Subjects with a hyperdynamic heart were older, more likely to be women, and more likely to have hypertension, diabetes, and obesity. A total of 20% of patients had a diagnosis of heart failure. This group had a higher heart rate, smaller ventricular size, and the highest relative wall thickness. All indexes of diastolic dysfunction were significantly more prevalent in the hyperdynamic group. This included a higher LV mass, larger left atrial volume, reduced relaxation (smaller mitral e'), longer deceleration time, and higher LV end-diastolic pressures (high mitral E/e' ratio) and peak tricuspid regurgitation gradient. Diastolic dysfunction, defined by an abnormal functional or structural parameter, was present in 78% of the subjects. Survival was significantly lower in the group with a hyperdynamic heart. The Cox regression analysis after adjustment demonstrated reduced survival during a median 9-year follow-up in the hyperdynamic group compared with those with a normal EF (hazard ratio 1.56, 95% confidence interval 1.38 to 1.76, p <0.001). In conclusion, subjects with a hyperdynamic systolic function have increased prevalence of diastolic dysfunction and reduced survival. A hyperdynamic heart is not a normally functioning heart.


Assuntos
Insuficiência Cardíaca , Disfunção Ventricular Esquerda , Humanos , Feminino , Masculino , Função Ventricular Esquerda/fisiologia , Ecocardiografia , Diástole , Ventrículos do Coração/diagnóstico por imagem , Volume Sistólico/fisiologia
20.
J Geriatr Cardiol ; 20(10): 748-755, 2023 Oct 28.
Artigo em Inglês | MEDLINE | ID: mdl-37970225

RESUMO

BACKGROUND: Chronic mitral regurgitation (MR) is a volume overload state that causes dilatation of the left sided cardiac chambers. The presence of significant dilatation is considered an indication for mitral valve intervention, however, aging may affect left ventricular (LV) remodeling independently of valvular disease. The objective of this study was to examine age-related changes in cardiac remodeling in a broad population of patients with chronic MR. METHODS: Consecutive subjects that underwent echocardiography examinations recorded in the echocardiography database of a university-affiliated laboratory were retrieved. Subjects were categorized into none/mild, moderate or severe MR. For purposes of analysis of differences with aging, the population was divided into groups above and below 70 years of age and standard echocardiographic measurements were compared between the groups. RESULTS: A total of 3492 subjects with at least moderate MR (mean age: 76 years, 52% female) were included in the study and compared to 18,250 subjects with none or mild MR. Older patients had significantly smaller LV end-diastolic diameters and volumes and significantly larger left atrial (LA) volumes when compared to the younger group. LA volume index increased in both age groups as MR severity increased, while LV end-diastolic volume increased with increasing MR only in the younger population. CONCLUSIONS: Cardiac remodeling in chronic MR is significantly influenced by age. Guideline based recommendations of timing of mitral valve interventions in asymptomatic MR patients, based on assessment of LA and LV remodeling, may need to take age into account.

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