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1.
Circulation ; 149(22): 1708-1716, 2024 May 28.
Artigo em Inglês | MEDLINE | ID: mdl-38660793

RESUMO

BACKGROUND: Evaluation of the residual risk in patient with chronic coronary syndrome is challenging in daily practice. Several types of events (myocardial infarction, ischemic stroke, bleeding, and heart failure [HF]) may occur, and their impact on subsequent mortality is unclear in the era of modern evidence-based pharmacotherapy. METHODS: CORONOR (Suivi d'une cohorte de patients Coronariens stables en région Nord-pas-de-Calais) is a prospective multicenter cohort that enrolled 4184 consecutive unselected outpatients with chronic coronary syndrome. We analyzed the incidence, correlates, and impact of ischemic events (a composite of myocardial infarction and ischemic stroke), major bleeding (Bleeding Academic Research Consortium 3 or higher), and hospitalization for HF on subsequent patient mortality. RESULTS: During follow-up (median, 4.9 years), 677 patients (16.5%) died. The 5-year cumulative incidences (death as competing event) of ischemic events, major bleeding, and HF hospitalization were 6.3% (5.6%-7.1%), 3.1% (2.5%-3.6%), and 8.1% (7.3%-9%), respectively. Ischemic events, major bleeding, and HF hospitalization were each associated with all-cause mortality. Major bleeding and hospitalization for HF were associated with the highest mortality rates in the postevent period (42.4%/y and 34.7%/y, respectively) compared with incident ischemic events (13.1%/y). The age- and sex-adjusted hazard ratios for all-cause mortality were 3.57 (95% CI, 2.77-4.61), 9.88 (95% CI, 7.55-12.93), and 8.60 (95% CI, 7.15-10.35) for ischemic events, major bleeding, and hospitalization for HF, respectively (all P<0.001). CONCLUSIONS: Hospitalization for HF has become both the most frequent and one of the most ominous events among patients with chronic coronary syndrome. Although less frequent, major bleeding is strongly associated with worse patient survival. Secondary prevention should not be limited to preventing ischemic events. Minimizing bleeding and preventing HF may be at least as important.


Assuntos
Insuficiência Cardíaca , Hemorragia , Sistema de Registros , Humanos , Masculino , Feminino , Insuficiência Cardíaca/epidemiologia , Insuficiência Cardíaca/mortalidade , Idoso , Hemorragia/epidemiologia , Hemorragia/mortalidade , Incidência , Pessoa de Meia-Idade , Estudos Prospectivos , Prognóstico , Doença Crônica , Hospitalização , Infarto do Miocárdio/epidemiologia , Infarto do Miocárdio/mortalidade , Infarto do Miocárdio/diagnóstico , Fatores de Risco , Seguimentos
2.
Am Heart J ; 262: 140-147, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37100186

RESUMO

BACKGROUND: Severe aortic stenosis (AS) has been associated with bleeding. However, there is a lack of prospective assessment of bleeding events and their clinical significance in a large population of outpatients with variable degree of AS severity. OBJECTIVES: To assess the incidence, source, determinants, and prognostic impact of major bleeding in patients with variable degree of AS severity. METHODS: Between May 2016 and December 2017, consecutive outpatients were included. Major bleeding was defined as type ≥3 bleed using the Bleeding Academic Research Consortium definition. Cumulative incidence was calculated with death as the competing event. Data was censored at time of aortic valve replacement. RESULTS: Among 2,830 patients, 46 major bleeding events occurred (0.7%/year) during a median follow-up of 2.1 years (interquartile range: 1.4-2.7). Most frequent sites of bleeding were gastrointestinal (50%) and intracranial (30.4%). Major bleeding was significantly associated with all-cause mortality (hazard ratio: 5.93 (95% confidence interval 3.64-9.65); P < .001). AS severity was associated with major bleedings (P = .041). By multivariable analysis, severe AS was an independent determinant of major bleeding (hazard ratio vs mild AS: 3.59 [95% confidence interval 1.56-8.29]; P = .003). The increased risk of bleeding associated with severe AS was significantly exacerbated in patients using oral anticoagulation. CONCLUSION: In AS patients, major bleeding is rare but a strong independent predictor of death. AS severity is a determinant of bleeding events. Severe AS and oral anticoagulation should be identified as an association at very high risk of major bleeding.


Assuntos
Estenose da Valva Aórtica , Substituição da Valva Aórtica Transcateter , Humanos , Prognóstico , Incidência , Substituição da Valva Aórtica Transcateter/efeitos adversos , Fatores de Risco , Hemorragia/epidemiologia , Hemorragia/etiologia , Estenose da Valva Aórtica/complicações , Estenose da Valva Aórtica/epidemiologia , Estenose da Valva Aórtica/cirurgia , Valva Aórtica/cirurgia , Anticoagulantes/uso terapêutico , Resultado do Tratamento
3.
Respir Res ; 23(1): 284, 2022 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-36243869

RESUMO

BACKGROUND AND OBJECTIVE: The definition of pre-capillary pulmonary hypertension (PH) has been modified, with lowering of the mean pulmonary arterial pressure (mPAP) threshold from 25 to 20 mmHg and addition of a mandatory criterion of pulmonary vascular resistance (PVR) ≥ 2 Wood units (WU). Our objectives were: 1/ to estimate the proportion of patients reclassified as having pre-capillary PH when using the new 2022 ESC/ERS hemodynamic criteria (i.e. mPAP 21-24 mmHg and PVR ≥ 2 WU), and to describe their clinical characteristics and outcome; and 2/ to study the relationship between PVR and survival in patients with mPAP > 20 mmHg. METHODS: We retrospectively analyzed consecutive SSc patients included in our National Reference Center for a first right-heart catheterization between 2003 and 2018. The association between survival and PVR was studied using smoothing splines. RESULTS: We included 126 SSc patients with mPAP > 20 mmHg. Among them, 16 (13%) had a baseline mPAP value between 21 and 24 mmHg and PVR ≥ 2 mmHg and were reclassified as pre-capillary PH; 10 of which (62%) raised their mPAP ≥ 25 mmHg during follow-up. In patients with mPAP > 20 mmHg, we observed a linear relation between PVR and mortality for values < 6 WU. CONCLUSION: A significant proportion of SSc patients is reclassified as having pre-capillary PH with the new 2022 ESC/ERS hemodynamic definition. Lowering the PVR threshold from 3 to 2 WU captures patients at risk of raising their mPAP > 25 mmHg, with a possibly less severe disease.


Assuntos
Hipertensão Pulmonar , Escleroderma Sistêmico , Hemodinâmica , Humanos , Hipertensão Pulmonar/diagnóstico , Estudos Retrospectivos , Escleroderma Sistêmico/diagnóstico , Resistência Vascular
4.
Eur Radiol ; 32(7): 4574-4586, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35286410

RESUMO

BACKGROUND: In the stratification of potential causes of PH, current guidelines recommend performing V/Q lung scintigraphy to screen for CTEPH. The recognition of CTEPH is based on the identification of lung segments or sub-segments without perfusion but preserved ventilation. The presence of mismatched perfusion defects has also been described in a small proportion of idiopathic pulmonary arterial hypertension (PAH) and pulmonary veno-occlusive disease and/or pulmonary capillary hemangiomatosis (PVOD/PCH). Dual-energy CT lung perfusion changes have not been specifically investigated in these two entities. PURPOSE: To compare dual-energy CT (DECT) perfusion characteristics in PAH and PVOD/PCH, with specific interest in PE-type perfusion defects. MATERIALS AND METHODS: Sixty-three patients with idiopathic or heritable PAH (group A; n = 51) and PVOD/PCH (group B; n = 12) were investigated with DECT angiography with reconstruction of morphologic and perfusion images. RESULTS: The number of patients with abnormal perfusion did not differ between group A (35/51; 68.6%) and group B (6/12; 50%) (p = 0.31) nor did the mean number of segments with abnormal perfusion per patient (group A: 17.9 ± 4.9; group B: 18.3 ± 4.1; p = 0.91). The most frequent finding was the presence of patchy defects in group A (15/35; 42.9%) and a variable association of perfusion abnormalities in group B (4/6; 66.7%). The median percentage of segments with PE-type defects per patient was significantly higher in group B than in group A (p = 0.041). Two types of PE-type defects were depicted in 8 patients (group A: 5/51; 9.8%; group B: 3/12; 25%), superimposed on PH-related lung abnormalities (7/8) or normal lung (1/8). The iodine concentration was significantly lower in patients with abnormal perfusion (p < 0.001) but did not differ between groups. CONCLUSION: Perfusion abnormalities did not differ between the two groups at the exception of a higher median percentage of segments with PE-type defects in patients with PVOD/PCH. KEY POINTS: • Patchy perfusion defect was the most frequent pattern in PAH. • A variable association of perfusion abnormalities was seen in PVOD/PCH. • Lobular and PE-type perfusion defects larger than a sub-segment were depicted in both PAH and PVOD/PCH patients.


Assuntos
Hemangioma Capilar , Hipertensão Pulmonar , Hipertensão Arterial Pulmonar , Pneumopatia Veno-Oclusiva , Hipertensão Pulmonar Primária Familiar/complicações , Hemangioma Capilar/complicações , Hemangioma Capilar/diagnóstico por imagem , Humanos , Pulmão , Perfusão , Pneumopatia Veno-Oclusiva/complicações , Pneumopatia Veno-Oclusiva/diagnóstico por imagem , Tomografia Computadorizada por Raios X/métodos
5.
J Hepatol ; 73(1): 130-139, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-32145258

RESUMO

BACKGROUND & AIMS: Long-term outcomes in portopulmonary hypertension (PoPH) are poorly studied in the current era of pulmonary hypertension management. We analysed the effect of pulmonary arterial hypertension (PAH)-targeted therapies, survival and predictors of death in a large contemporary cohort of patients with PoPH. METHODS: Data from patients with PoPH consecutively enrolled in the French Pulmonary Hypertension Registry between 2007 and 2017 were collected. The effect of initial treatment strategies on functional class, exercise capacity and cardiopulmonary haemodynamics were analysed. Survival and its association with PAH- and hepatic-related characteristics were also examined. RESULTS: Six hundred and thirty-seven patients (mean age 55 ± 10 years; 58% male) were included. Fifty-seven percent had mild cirrhosis, i.e. Child-Pugh stage A. The median model for end-stage liver disease (MELD) score was 11 (IQR 9-15). Most patients (n = 474; 74%) were initiated on monotherapy, either with a phosphodiesterase-5 inhibitor (n = 336) or with an endothelin-receptor antagonist (n = 128); 95 (15%) were initiated on double oral combination therapy and 5 (1%) on triple therapy. After a median treatment time of 4.5 months, there were significant improvements in functional class (p <0.001), 6-minute walk distance (6MWD) (p <0.0001) and pulmonary vascular resistance (p <0.0001). Overall survival rates were 84%, 69% and 51% at 1, 3 and 5 years, respectively. Baseline 6MWD, sex, age and MELD score or Child-Pugh stage were identified as independent prognostic factors. Survival from PoPH diagnosis was significantly better in the subgroup of patients who underwent liver transplantation (92%, 83% and 81% at 1, 3 and 5 years, respectively). CONCLUSION: Survival of patients with PoPH is strongly associated with the severity of liver disease. Patients who underwent liver transplantation had the best long-term outcomes. LAY SUMMARY: Portopulmonary hypertension is defined by the presence of pulmonary arterial hypertension in the context of chronic liver disease and is characterized by progressive shortness of breath and exercise limitation. The presence of severe pulmonary arterial hypertension in liver transplant candidates represents a contraindication for such a surgery; however, treatments targeting pulmonary arterial hypertension are efficacious, allowing for safe transplantation and conferring good survival outcomes in those who undergo liver transplantation.


Assuntos
Antagonistas dos Receptores de Endotelina/uso terapêutico , Hipertensão Portal , Cirrose Hepática , Inibidores da Fosfodiesterase 5/uso terapêutico , Hipertensão Arterial Pulmonar , Sistema Cardiovascular/fisiopatologia , Tolerância ao Exercício , Feminino , França/epidemiologia , Estado Funcional , Humanos , Hipertensão Portal/diagnóstico , Hipertensão Portal/mortalidade , Hipertensão Portal/fisiopatologia , Cirrose Hepática/diagnóstico , Cirrose Hepática/fisiopatologia , Cirrose Hepática/cirurgia , Transplante de Fígado/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Avaliação de Resultados em Cuidados de Saúde , Administração dos Cuidados ao Paciente/métodos , Prognóstico , Hipertensão Arterial Pulmonar/mortalidade , Hipertensão Arterial Pulmonar/fisiopatologia , Hipertensão Arterial Pulmonar/terapia , Índice de Gravidade de Doença , Análise de Sobrevida
6.
Int J Mol Sci ; 20(21)2019 Nov 05.
Artigo em Inglês | MEDLINE | ID: mdl-31694153

RESUMO

Abdominal aortic aneurysm (AAA) is a progressive vascular disease responsible for 1-4% of the deaths in elderly men. This study aimed to characterize specific microRNA (miRNA) expression in aneurysmal smooth muscle cells (SMCs) and macrophages in order to identify circulating miRNAs associated with AAA. We screened 850 miRNAs in aneurysmal SMCs, M1 and M2 macrophages, and in control SMCs isolated by micro-dissection from aortic biopsies using microarray analysis. In all, 92 miRNAs were detected and 10 miRNAs were selected for validation by qRT-PCR in isolated cells (n = 5), whole control and aneurysmal aorta biopsies (n = 13), and plasma from patients (n = 24) undergoing AAA (over 50 mm) repair matched to patients (n = 18) with peripheral arterial disease (PAD) with atherosclerosis but not AAA. Seven miRNAs were modulated similarly in all aneurysmal cells. The Let-7f was downregulated in aneurysmal cells compared to control SMCs with a significant lower expression in M1 compared to M2 macrophages (0.1 fold, p = 0.03), correlated with a significant downregulation in whole aneurysmal aorta compared to control aorta (0.2 fold, p = 0.03). Significant levels of circulating let-7f (p = 0.048) were found in AAA patients compared to PAD patients with no significant correlation with aortic diameter (R2 = 0.03). Our study underlines the utility of profiling isolated aneurysmal cells to identify other miRNAs for which the modulation of expression might be masked when the whole aorta is used. The results highlight let-7f as a new potential biomarker for AAA.


Assuntos
Aneurisma da Aorta Abdominal/sangue , MicroRNA Circulante/sangue , MicroRNAs/sangue , Transcriptoma , Idoso , Aneurisma da Aorta Abdominal/genética , Aneurisma da Aorta Abdominal/patologia , Biomarcadores/sangue , MicroRNA Circulante/genética , Regulação para Baixo , Humanos , Macrófagos/metabolismo , Macrófagos/patologia , MicroRNAs/genética , Pessoa de Meia-Idade , Miócitos de Músculo Liso/metabolismo , Miócitos de Músculo Liso/patologia
7.
J Card Fail ; 24(12): 815-822, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30296582

RESUMO

BACKGROUND: We lack recent data on the incidence, correlates, and prognosis associated with heart failure (HF) development in patients with stable coronary artery disease (CAD). Here, we analyzed HF development in a contemporary population of outpatients with stable CAD. METHODS AND RESULTS: Of 4184 unselected outpatients with stable CAD (ie, myocardial infarction [MI] and/or coronary revascularization >1 year earlier) included in the multicenter CORONOR registry, we identified 3871 patients with no history of hospitalization for HF at inclusion and followed 3785 (98%) of them for 5 years. During follow-up, 211 patients were hospitalized for HF (5-year cumulative incidence 5.7%) and 163 patients had incident MIs. Independent predictors of hospitalization for HF were older age, lower left ventricular ejection fraction (LVEF), atrial fibrillation, higher body mass index, diabetes mellitus, history of hypertension, angina at inclusion, and multivessel CAD. Most hospitalizations for HF (62.6%) occurred in patients with LVEF ≥50% at inclusion, and most (92.4%) were not preceded by an incident MI. Hospitalization for HF was a powerful predictor of mortality (adjusted hazard ratio 5.97, 95% confidence interval 4.55-7.83; P < .0001). After hospitalization for HF, mortality rates were similar in patients with LVEFs ≥50% and <50% at hospitalization. CONCLUSIONS: Outpatients with stable CAD were frequently hospitalized for HF, and HF was associated with high mortality. Most HF hospitalizations were associated with preserved LVEF at inclusion and were not preceded by an incident MI.


Assuntos
Doença da Artéria Coronariana/epidemiologia , Insuficiência Cardíaca/terapia , Hospitalização/tendências , Infarto do Miocárdio/epidemiologia , Pacientes Ambulatoriais , Sistema de Registros , Medição de Risco/métodos , Idoso , Doença da Artéria Coronariana/complicações , Doença da Artéria Coronariana/terapia , Feminino , Seguimentos , França/epidemiologia , Insuficiência Cardíaca/complicações , Insuficiência Cardíaca/epidemiologia , Humanos , Incidência , Masculino , Infarto do Miocárdio/etiologia , Infarto do Miocárdio/terapia , Revascularização Miocárdica , Prognóstico , Estudos Retrospectivos , Fatores de Risco , Taxa de Sobrevida/tendências , Fatores de Tempo
8.
Eur Radiol ; 28(12): 5100-5110, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29846802

RESUMO

OBJECTIVES: To evaluate the concordance between DECT perfusion and ventilation/perfusion (V/Q) scintigraphy in diagnosing chronic thromboembolic pulmonary hypertension (CTEPH). METHODS: Eighty patients underwent V/Q scintigraphy and DECT perfusion on a 2nd- and 3rd-generation dual-source CT system. The imaging criteria for diagnosing CTEPH relied on at least one segmental triangular perfusion defect on DECT perfusion studies and V/Q mismatch on scintigraphy examinations. RESULTS: Based on multidisciplinary expert decisions that did not include DECT perfusion, 36 patients were diagnosed with CTEPH and 44 patients with other aetiologies of PH. On DECT perfusion studies, there were 35 true positives, 6 false positives and 1 false negative (sensitivity 0.97, specificity 0.86, PPV 0.85, NPV 0.97). On V/Q scans, there were 35 true positives and 1 false negative (sensitivity 0.97, specificity 1, PPV 1, NPV 0.98). There was excellent agreement between CT perfusion and scintigraphy in diagnosing CTEPH (kappa value 0.80). Combined information from DECT perfusion and CT angiographic images enabled correct reclassification of the 6 false positives and the unique false negative case of DECT perfusion. CONCLUSION: There is excellent agreement between DECT perfusion and V/Q scintigraphy in diagnosing CTEPH. The diagnostic accuracy of DECT perfusion is reinforced by the morpho-functional analysis of data sets. KEY POINTS: • Chronic thromboembolic pulmonary hypertension (CTEPH) is potentially curable by surgery. • The triage of patients with pulmonary hypertension currently relies on scintigraphy. • Dual-energy CT (DECT) can provide standard diagnostic information and lung perfusion from a single acquisition. • There is excellent agreement between DECT perfusion and scintigraphy in separating CTEPH and non-CTEPH patients.


Assuntos
Hipertensão Pulmonar/diagnóstico por imagem , Embolia Pulmonar/diagnóstico por imagem , Tomografia Computadorizada por Raios X/métodos , Cintilografia de Ventilação/Perfusão/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Doença Crônica , Angiografia por Tomografia Computadorizada/métodos , Feminino , Humanos , Pulmão/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Imagem de Perfusão/métodos , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Relação Ventilação-Perfusão , Adulto Jovem
9.
BMC Infect Dis ; 18(1): 85, 2018 02 21.
Artigo em Inglês | MEDLINE | ID: mdl-29466956

RESUMO

BACKGROUND: Right-sided infective endocarditis (RSIE) is an uncommon diagnosis accounting for less than 10% of cases of infective endocarditis. Optimal management for severely ill patients with RSIE remains challenging because few studies reported on management and outcome. The goal of our study was to determine outcome and associated prognostic factors in a population of ICU patients with a diagnosis of definite, active and severe RSIE. METHODS: We performed a retrospective study in 10 French ICUs between January 2002 and December 2012. Main outcome was mortality at 30 days after ICU admission. Significant variables associated with 30-days mortality in the bivariate analysis were included in a logistic regression analysis. RESULTS: A total of 37 patients were studied. Mean age was 47.9 ± 18.4 years. Mean SAPS II, SOFA score and Charlson comorbidity index were 32.4 ± 17.4, 6.3 ± 4.4 and 3.1 ± 3.4, respectively. Causative pathogens, identified in 34 patients, were mainly staphylococci (n = 29). The source of endocarditis was a catheter related infection in 10 patients, intravenous drug abuse in 8 patients, cutaneous in 7 patients, urinary tract related in one patient and has an unknown origin in 7 patients. Vegetation size was higher than 20 mm for 14 patients. Valve tricuspid regurgitation was classified as severe in 11 patients. All patients received initial appropriate antimicrobial therapy. Aminoglycosides were delivered in combination with ß-lactam antibiotics or vancomycin in 22 patients. Surgical procedure was performed in 14 patients. Eight patients (21.6%) died within 30 days following ICU admission. One independent prognostic factor was identified: use of aminoglycosides was associated with improved outcome (OR = 0.1; 95%CI = 0.0017-0.650; p = 0.007). CONCLUSION: Mortality of patients with RSIE needing ICU admission is high. Aminoglycosides used in combination with ß-lactam or vancomycin could reduce 30 days mortality.


Assuntos
Endocardite/diagnóstico , Adulto , Idoso , Aminoglicosídeos/uso terapêutico , Antibacterianos/uso terapêutico , Bacteriocinas/isolamento & purificação , Infecções Relacionadas a Cateter/complicações , Endocardite/tratamento farmacológico , Endocardite/etiologia , Endocardite/mortalidade , Feminino , Hospitalização , Humanos , Unidades de Terapia Intensiva , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos , Abuso de Substâncias por Via Intravenosa/complicações , Análise de Sobrevida , Resultado do Tratamento , Vancomicina/uso terapêutico
10.
Eur Radiol ; 27(4): 1631-1639, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-27480438

RESUMO

PURPOSE: To compare lung perfusion in PAH and pCTEPH on dual-energy CT (DECT) examinations. MATERIALS AND METHODS: Thirty-one patients with PAH (group 1; n = 19) and pCTEPH (group 2; n = 12) underwent a dual-energy chest CTA with reconstruction of diagnostic and perfusion images. Perfusion alterations were analysed at a segmental level. V/Q scintigraphy was available in 22 patients (group 1: 13/19; group 2: 9/12). RESULTS: CT perfusion was abnormal in 52.6 % of group 1 patients and in 100 % of group 2 patients (p = 0.0051). The patterns of perfusion alteration significantly differed between the two groups (p < 0.0001): (1) in group 1, 96.6 % of segments with abnormal perfusion showed patchy defects; (2) in group 2, the most frequent abnormalities consisted of patchy (58.5 %) and PE-type (37.5 %) defects. Paired comparison of CT perfusion and scintigraphy showed concordant findings in 76.9 % of group 1 (10/13) and 100 % of group 2 (9/9) patients, with a predominant or an exclusive patchy pattern in group 1 and a mixed pattern of abnormalities in group 2. CONCLUSION: Lung perfusion alterations at DECT are less frequent and more homogeneous in PAH than in pCTEPH, with a high level of concordant findings with V/Q scintigraphy. KEY POINTS: • Depiction of chronic pulmonary embolism exclusively located on peripheral arteries is difficult. • The main differential diagnosis of pCTEPH is PAH. • The pattern of DECT perfusion changes can help differentiate PAH and pCETPH. • In PAH, almost all segments with abnormal perfusion showed patchy defects. • In pCTEPH, patchy and PE-type defects were the most frequent abnormalities.


Assuntos
Hipertensão Pulmonar/diagnóstico por imagem , Embolia Pulmonar/diagnóstico por imagem , Adulto , Idoso , Idoso de 80 Anos ou mais , Angiografia/métodos , Doença Crônica , Diagnóstico Diferencial , Feminino , Humanos , Hipertensão Pulmonar/etiologia , Masculino , Pessoa de Meia-Idade , Imagem de Perfusão/métodos , Embolia Pulmonar/complicações , Tomografia Computadorizada por Raios X/métodos , Adulto Jovem
11.
Eur Radiol ; 26(11): 4011-4020, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26976297

RESUMO

PURPOSE: To evaluate the impact of CT perfusion imaging on the detection of peripheral chronic pulmonary embolisms (CPE). MATERIALS AND METHODS: 62 patients underwent a dual-energy chest CT angiographic examination with (a) reconstruction of diagnostic and perfusion images; (b) enabling depiction of vascular features of peripheral CPE on diagnostic images and perfusion defects (20 segments/patient; total: 1240 segments examined). The interpretation of diagnostic images was of two types: (a) standard (i.e., based on cross-sectional images alone) or (b) detailed (i.e., based on cross-sectional images and MIPs). RESULTS: The segment-based analysis showed (a) 1179 segments analyzable on both imaging modalities and 61 segments rated as nonanalyzable on perfusion images; (b) the percentage of diseased segments was increased by 7.2 % when perfusion imaging was compared to the detailed reading of diagnostic images, and by 26.6 % when compared to the standard reading of images. At a patient level, the extent of peripheral CPE was higher on perfusion imaging, with a greater impact when compared to the standard reading of diagnostic images (number of patients with a greater number of diseased segments: n = 45; 72.6 % of the study population). CONCLUSION: Perfusion imaging allows recognition of a greater extent of peripheral CPE compared to diagnostic imaging. KEY POINTS: • Dual-energy computed tomography generates standard diagnostic imaging and lung perfusion analysis. • Depiction of CPE on central arteries relies on standard diagnostic imaging. • Detection of peripheral CPE is improved by perfusion imaging.


Assuntos
Angiografia por Tomografia Computadorizada/métodos , Artéria Pulmonar/diagnóstico por imagem , Embolia Pulmonar/diagnóstico por imagem , Adulto , Idoso , Idoso de 80 Anos ou mais , Doença Crônica , Estudos Transversais , Feminino , Humanos , Pulmão/irrigação sanguínea , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Sensibilidade e Especificidade , Adulto Jovem
12.
Cardiology ; 134(1): 11-8, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26795761

RESUMO

BACKGROUND: Clopidogrel use as single antiplatelet therapy (SAPT) has never been evaluated in stable coronary artery disease (CAD) outpatients either as compared to placebo or aspirin. METHODS: We therefore studied 2,823 outpatients included in a prospective registry. The patients were divided into 2 groups according to their antiplatelet therapy regimen: patients treated with clopidogrel were compared with those treated with aspirin alone. RESULTS: The mean time since CAD diagnosis was 7.9 years. Altogether, 776 (27.5%) patients received clopidogrel as SAPT. Factors independently associated with clopidogrel use were prior aortic or peripheral intervention, drug-eluting stent implantation, stroke, carotid endarterectomy and time since CAD diagnosis. Clopidogrel tended to be used in higher-risk patients: composite of cardiovascular death, myocardial infarction or stroke at 5.8 versus 4.2% (p = 0.056). However, after propensity score matching, similar event rates were observed between the groups: 5.9% when treated with clopidogrel versus 4.4% with aspirin (p = 0.207). The rate of bleeding was also similar between the groups. CONCLUSIONS: Our study shows that a significant proportion of stable CAD patients are treated with clopidogrel as SAPT in modern practice. Several correlates of such an attitude were identified. Our results suggest that this strategy is not beneficial as compared to aspirin alone in terms of ischaemic or bleeding events.


Assuntos
Aspirina , Doença da Artéria Coronariana , Hemorragia , Infarto do Miocárdio , Acidente Vascular Cerebral , Ticlopidina/análogos & derivados , Idoso , Aspirina/administração & dosagem , Aspirina/efeitos adversos , Clopidogrel , Doença da Artéria Coronariana/diagnóstico , Doença da Artéria Coronariana/epidemiologia , Doença da Artéria Coronariana/terapia , Stents Farmacológicos/estatística & dados numéricos , Procedimentos Endovasculares/instrumentação , Procedimentos Endovasculares/métodos , Procedimentos Endovasculares/estatística & dados numéricos , Feminino , França/epidemiologia , Hemorragia/induzido quimicamente , Hemorragia/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/epidemiologia , Infarto do Miocárdio/etiologia , Avaliação de Processos e Resultados em Cuidados de Saúde , Pacientes Ambulatoriais/estatística & dados numéricos , Inibidores da Agregação Plaquetária/administração & dosagem , Inibidores da Agregação Plaquetária/efeitos adversos , Prevalência , Prognóstico , Sistema de Registros/estatística & dados numéricos , Acidente Vascular Cerebral/epidemiologia , Acidente Vascular Cerebral/etiologia , Ticlopidina/administração & dosagem , Ticlopidina/efeitos adversos
14.
Int J Mol Sci ; 16(5): 11276-93, 2015 May 18.
Artigo em Inglês | MEDLINE | ID: mdl-25993295

RESUMO

Abdominal aortic aneurysm (AAA) is an inflammatory disease associated with marked changes in the cellular composition of the aortic wall. This study aims to identify microRNA (miRNA) expression in aneurysmal inflammatory cells isolated by laser microdissection from human tissue samples. The distribution of inflammatory cells (neutrophils, B and T lymphocytes, mast cells) was evaluated in human AAA biopsies. We observed in half of the samples that adventitial tertiary lymphoid organs (ATLOs) with a thickness from 0.5 to 2 mm were located exclusively in the adventitia. Out of the 850 miRNA that were screened by microarray in isolated ATLOs (n = 2), 164 miRNAs were detected in ATLOs. The three miRNAs (miR-15a-3p, miR-30a-5p and miR-489-3p) with the highest expression levels were chosen and their expression quantified by RT-PCR in isolated ATLOs (n = 4), M1 (n = 2) and M2 macrophages (n = 2) and entire aneurysmal biopsies (n = 3). Except for the miR-30a-5p, a similar modulation was found in ATLOs and the two subtypes of macrophages. The modulated miRNAs were then evaluated in the plasma of AAA patients for their potential as AAA biomarkers. Our data emphasize the potential of miR-15a-3p and miR-30a-5p as biomarkers of AAA but also as triggers of ATLO evolution. Further investigations will be required to evaluate their targets in order to better understand AAA pathophysiology.


Assuntos
Túnica Adventícia/metabolismo , Aneurisma da Aorta Abdominal/patologia , MicroRNAs/metabolismo , Túnica Adventícia/fisiopatologia , Idoso , Aorta/metabolismo , Aorta/patologia , Aneurisma da Aorta Abdominal/complicações , Aneurisma da Aorta Abdominal/genética , Biomarcadores/metabolismo , Doença das Coronárias/etiologia , Feminino , Humanos , Linfócitos/citologia , Linfócitos/metabolismo , Masculino , MicroRNAs/isolamento & purificação , Pessoa de Meia-Idade , Doença Arterial Periférica/genética , Doença Arterial Periférica/patologia , Reação em Cadeia da Polimerase em Tempo Real , Fatores de Risco
15.
Circulation ; 127(15): 1597-608, 2013 Apr 16.
Artigo em Inglês | MEDLINE | ID: mdl-23487435

RESUMO

BACKGROUND: To assess the prevalence, determinants, and prognosis value of right ventricular (RV) ejection fraction (EF) impairment in organic mitral regurgitation. METHODS AND RESULTS: Two hundred eight patients (62±12 years, 138 males) with chronic organic mitral regurgitation referred to surgery underwent an echocardiography and biventricular radionuclide angiography with regional function assessment. Mean RV EF was 40.4±10.2%, ranging from 10% to 65%. RV EF was severely impaired (≤35%) in 63 patients (30%), and biventricular impairment (left ventricular EF<60% and RV EF≤35%) was found in 34 patients (16%). Pathophysiologic correlates of RV EF were left ventricular septal function (ß=0.42, P<0.0001), left ventricular end-diastolic diameter index (ß=-0.22, P=0.002), and pulmonary artery systolic pressure (ß=-0.14, P=0.047). Mitral effective regurgitant orifice size (n=84) influenced RV EF (ß=-0.28, P=0.012). In 68 patients examined after surgery, RV EF increased strongly (27.5±4.3-37.9±7.3, P<0.0001) in patients with depressed RV EF, whereas it did not change in others (P=0.91). RV EF ≤35% impaired 10-year cardiovascular survival (71.6±8.4% versus 89.8±3.7%, P=0.037). Biventricular impairment dramatically reduced 10-year cardiovascular survival (51.9±15.3% versus 90.3±3.2%, P<0.0001; hazard ratio, 5.2; P<0.0001) even after adjustment for known predictors (hazard ratio, 4.6; P=0.004). Biventricular impairment reduced also 10-year overall survival (34.8±13.0% versus 72.6±4.5%, P=0.003; hazard ratio, 2.5; P=0.005) even after adjustment for known predictors (P=0.048). CONCLUSIONS: In patients with organic mitral regurgitation referred to surgery, RV function impairment is frequent (30%) and depends weakly on pulmonary artery systolic pressure but mainly on left ventricular remodeling and septal function. RV function is a predictor of postoperative cardiovascular survival, whereas biventricular impairment is a powerful predictor of both cardiovascular and overall survival.


Assuntos
Ventrículos do Coração/fisiopatologia , Insuficiência da Valva Mitral/fisiopatologia , Volume Sistólico , Disfunção Ventricular Esquerda/fisiopatologia , Disfunção Ventricular Direita/fisiopatologia , Idoso , Doenças Cardiovasculares/mortalidade , Feminino , Seguimentos , Ventrículos do Coração/diagnóstico por imagem , Mortalidade Hospitalar , Humanos , Hipertensão Pulmonar/etiologia , Hipertensão Pulmonar/fisiopatologia , Masculino , Pessoa de Meia-Idade , Valva Mitral/patologia , Insuficiência da Valva Mitral/diagnóstico por imagem , Insuficiência da Valva Mitral/cirurgia , Prevalência , Prognóstico , Ventriculografia com Radionuclídeos , Taxa de Sobrevida , Sístole , Ultrassonografia , Disfunção Ventricular Esquerda/diagnóstico por imagem , Disfunção Ventricular Direita/diagnóstico por imagem
16.
Am Heart J ; 168(4): 479-86, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25262257

RESUMO

BACKGROUND: The prevalence and correlates of dual-antiplatelet therapy (DAPT) use in stable coronary artery disease (CAD) are unknown. In addition, whether prolonged DAPT may impact prognosis in stable CAD has not been studied in real-life conditions. METHODS: We studied 3,691 patients included in a prospective registry on stable CAD. The patients were divided in 2 groups according to their antiplatelet therapy regimen at inclusion: patients treated with DAPT were compared with those treated with single-antiplatelet therapy (SAPT). The primary outcome was a composite of cardiovascular death, myocardial infarction, or stroke. RESULTS: Altogether, 868 (24%) patients received DAPT. Factors positively associated with DAPT use were persistent angina at inclusion, body mass index, myocardial infarction since 1 to 3 years, myocardial revascularization since 1 to 3 years, multivessel CAD, prior drug-eluting stent implantation, and prior aortic or peripheral intervention. Factors negatively associated with DAPT use were age, prior coronary bypass, and left ventricular ejection fraction. The rate of the primary outcome at 2 years was similar whether patients were treated with SAPT (4.6%) or DAPT (5.5%) (P = .301). Similar rates were also observed after propensity score matching: 5.7% when treated with SAPT versus 5.5% when treated with DAPT (P = .886). The rate of bleeding was similar between groups. CONCLUSIONS: Our study shows that a significant proportion of stable CAD patients are treated with DAPT in modern practice. Several correlates of DAPT were identified. Although no increase in bleeding was observed, our results do not support the prescription of prolonged DAPT.


Assuntos
Doença da Artéria Coronariana/tratamento farmacológico , Infarto do Miocárdio/epidemiologia , Inibidores da Agregação Plaquetária/uso terapêutico , Antagonistas do Receptor Purinérgico P2Y/uso terapêutico , Sistema de Registros , Acidente Vascular Cerebral/epidemiologia , Idoso , Aspirina/uso terapêutico , Doença da Artéria Coronariana/complicações , Quimioterapia Combinada , Feminino , Seguimentos , França/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/etiologia , Prevalência , Prognóstico , Estudos Prospectivos , Acidente Vascular Cerebral/etiologia , Taxa de Sobrevida/tendências , Fatores de Tempo
17.
Arterioscler Thromb Vasc Biol ; 33(2): 431-8, 2013 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-23241402

RESUMO

OBJECTIVE: Abdominal aortic aneurysms (AAAs), dilations of the infrarenal aorta, are characterized by inflammation and oxidative stress. We previously showed increased levels of peroxiredoxin-1 (PRDX-1) in macrophages cultured from AAA patients. The purpose of the study was to determine which subpopulation of macrophages is present in AAAs and is involved in upregulation of PRDX-1 in aneurysmal disease. METHODS AND RESULTS: This study used immunohistochemistry with antibodies against CD68 and mannose receptor (MR) to determine the subtype of macrophages in AAA tissue samples (n=33); laser capture microdissection to isolate each subtype; and quantitative-reverse transcriptase-polymerase chain reaction, Western blot, and ELISA to assess PRDX-1 mRNA and PRDX-1protein levels in both types. Proinflammatory CD68(+)MR(-) macrophages predominated in adventitial tissue, whereas the intraluminal thrombus contained CD68(+)MR(+) macrophages. The presence of lipids and iron-containing deposits confirmed their phagocytic phenotype. Laser capture microdissection-isolated CD68(+)MR(-) and CD68(+)MR(+) macrophages, characterized by quantitative-reverse transcriptase-polymerase chain reaction (TNF, IL1B, MRC1, and CCL18) and Western blot (stabilin and hemoglobin), validated the microdissected subtypes. PRDX-1 expression was colocalized with CD68(+)MR(-) macrophages. PRDX-1 mRNA and PRDX-1 protein were both more abundant in CD68(+)MR(-) than CD68(+)MR(+) macrophages in AAA. CONCLUSIONS: These findings suggest that the proteins or mRNAs expressed by the proinflammatory CD68(+)MR(-) macrophages may contribute to aneurysmal pathology.


Assuntos
Antígenos CD/análise , Antígenos de Diferenciação Mielomonocítica/análise , Aorta Abdominal/enzimologia , Aneurisma da Aorta Abdominal/enzimologia , Mediadores da Inflamação/análise , Macrófagos/enzimologia , Peroxirredoxinas/metabolismo , Aorta Abdominal/imunologia , Aorta Abdominal/patologia , Aneurisma da Aorta Abdominal/genética , Aneurisma da Aorta Abdominal/imunologia , Aneurisma da Aorta Abdominal/patologia , Biomarcadores/análise , Western Blotting , Células Cultivadas , Ensaio de Imunoadsorção Enzimática , Regulação Enzimológica da Expressão Gênica , Humanos , Imuno-Histoquímica , Microdissecção e Captura a Laser , Macrófagos/imunologia , Macrófagos/patologia , Metaloproteinase 9 da Matriz/genética , Metaloproteinase 9 da Matriz/metabolismo , Peroxirredoxinas/genética , RNA Mensageiro/metabolismo , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Regulação para Cima
19.
Pharmacoecon Open ; 8(1): 19-30, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37606866

RESUMO

INTRODUCTION: The efficacy and safety of empagliflozin in the treatment of heart failure with preserved ejection fraction (HFpEF) were demonstrated in the EMPEROR-Preserved trial, which showed a 21% reduction in combined risks of cardiovascular death or HF hospitalization [hazard ratio (HR) 0.79; 95% confidence interval (CI) 0.69-0.90, p < 0.001] and a 27% reduction in the total number of HF hospitalizations (HR 0.73; 95% CI 0.61-0.88, p < 0.001) compared with placebo. On the basis of these results, the present study aimed to assess the cost-effectiveness of empagliflozin + standard of care (SoC) compared with SoC alone in the treatment of HFpEF. METHODS: A published Markov model was adapted to compare the health and economic outcomes in France, considering a collective perspective, in patients treated with empagliflozin in addition to SoC versus patients treated by SoC alone. The model simulated the intention-to-treat (ITT) population of the trial, transitioning between four mutually exclusive health states representing the quartiles of the Kansas City Cardiomyopathy Questionnaire-Clinical Summary Score (KCCQ-CSS). For each arm, the model estimated (over a lifetime time horizon) the economics and the health outcomes (HF hospitalizations avoided, and life years and quality-adjusted life years (QALYs) gained) to calculate the incremental cost-effectiveness ratios (ICERs). The resources used were derived by pairing the FREnch Survey on HF (FRESH) cohort data to French health insurance claims data, and the utilities were derived on the basis of the EQ-5D-5L questionnaire valued on the French tariff. Both economic and health outcomes were discounted at a 2.5% annual rate. RESULTS: The model predicted that treatment of HFpEF patients with empagliflozin would prevent, for 1000 patients treated, 74 HF hospitalizations and 15 deaths attributable to cardiovascular events, resulting on average in a gain of 1 month in overall survival (7.24 versus 7.16 years with placebo) and 0.11 QALYs (6.14 versus 6.03 with placebo). Empagliflozin costs were partially offset by the cost savings from avoided hospitalizations. The ICERs were €18,597 per life year gained and €13,980 per QALY gained. The sensitivity analyses conducted showed that empagliflozin has a 65% probability to be cost-effective under the €25,000/QALY threshold. CONCLUSIONS: The base-case results showed that empagliflozin is a cost-effective strategy for management of HFpEF, in addition to the impact on public health by preventing HF-hospitalizations and deaths in France. Sensitivity analyses suggest that 65% of simulations are under the €25,000/QALY threshold.

20.
ESC Heart Fail ; 2024 May 23.
Artigo em Inglês | MEDLINE | ID: mdl-38783593

RESUMO

AIMS: Reducing sodium intake is necessary for patients with chronic heart failure (CHF). Salt substitutes (saltSubs) have become increasingly popular as recommendations by healthcare professionals (HCPs) as well as options for patients and their caregivers. However, their consumption is generally potassium based and remains poorly evaluated in CHF management. Their impact on guideline-directed medical therapies (GDMTs) also remains unknown. The primary objective of this study was to provide a description and estimate of HCP recommendations and reported use of saltSubs in France. Secondary objectives were to identify if there was an association between these recommendations by HCPs and the use of GDMTs. METHODS AND RESULTS: A nationwide, questionnaire-based, cross-sectional, epidemiological study was conducted from September 2020 to July 2021. Data collection included baseline characteristics, the use and recommendations of saltSubs, and the use of GDMTs, which included (i) angiotensin-converting enzyme inhibitors (ACEis) and angiotensin receptor blockers (ARBs) or angiotensin receptor-neprilysin inhibitors (ARNis), (ii) mineralocorticoid receptor antagonists (MRAs), and/or (iii) beta-blockers (BBs). In total, 13% of HCPs advised saltSubs and 17% of patients and 22% of caregivers reported their consumption. CHF patients advised to take saltSubs did not differ in terms of left ventricular ejection fraction (EF) <40%, ischaemic origin, and New York Heart Association III-IV class, but were more recently hospitalized for acute HF (P = 0.004). HCPs who recommended saltSubs to patients were more likely to advise an anti-diabetic diet (P < 0.001), cholesterol-lowering diet (P < 0.001), and exercise (P = 0.018). In the overall population, ACEi/ARB/ARNi use was less frequent in case of saltSub recommendations (74% vs. 82%, P = 0.012). The concomitant prescription of none, one, two, or three GDMTs was less favourable in case of saltSub recommendations (P = 0.046). There was no significant difference for the presence of MRA (56% vs. 58%) and/or BB (78% vs. 82%). The under-prescription of ACEi/ARB/ARNi was found when patients had EF < 40% (P = 0.029) and/or EF ≥ 40% (P = 0.043). In the subgroup with left ventricular EF ≥ 40%, we found a higher thiazide use (P = 0.014) and a less frequent use of low EF GDMTs (P = 0.044) in case of being recommended saltSubs. CONCLUSIONS: Beyond the well-established risk for hyperkalaemia, our preliminary results suggest a potentially negative impact of saltSubs on GDMT use, especially for ACEis/ARBs/ARNis in CHF management. saltSub recommendations and their availability from open sale outlets should be considered to avoid possible misuse or deference from GDMTs in the future. Informed advice to consumers should also be considered from HCPs or pharmacists.

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