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1.
Arq Bras Cardiol ; 121(6): e20230817, 2024 Jun.
Artigo em Português, Inglês | MEDLINE | ID: mdl-39016414

RESUMO

BACKGROUND: Although there have been significant improvements in the treatment of heart failure (HF) in recent decades, its prognosis remains poor. Although there are many biomarkers that can help predict the prognosis of patients with HF, there is a need for simpler, cheaper, and more easily available biomarkers. OBJECTIVE: To evaluate the predictive value of pan-immune-inflammation value (PIV) in patients with acute decompensated HF. METHODS: We analyzed 409 patients with HF with reduced ejection fraction who were hospitalized for acute decompensated HF. Patients were divided into 3 groups according to tertiles of PIV: tertile 1 (PIV < 357.25), tertile 2 (PIV ≥ 357.25 and < 834.55), and tertile 3 (PIV ≥ 834.55). P values < 0.05 were considered statistically significant. Kaplan-Meier curves and Cox proportional hazards regression models were used to evaluate the association between PIV and all-cause mortality. The primary outcome was 5-year all-cause mortality, and the secondary outcomes were in-hospital 30 days,, 180-day, and 1-year all-cause mortality. RESULTS: We showed that higher PIV value was associated with both primary and secondary outcomes. The Kaplan-Meier curve showed that patients with higher PIV values had an increased risk of short- and long-term all-cause mortality (log-rank p < 0.001). In the multivariate analysis, PIV was identified as an independent predictor of long-term all-cause mortality in patients with acute decompensated HF, and we observed a 1.96-fold increase in the hazard of an event (odds ratio: 1.96, 95% confidence interval: 1.330 to 2.908, p = 0.001). CONCLUSIONS: Our study showed that the novel biomarker PIV can be used as a predictor of prognosis in patients with acute decompensated HF.


FUNDAMENTO: Embora tenha havido melhorias significativas no tratamento da insuficiência cardíaca (IC) nas últimas décadas, seu prognóstico permanece desfavorável. Embora existam muitos biomarcadores que podem ajudar a prever o prognóstico de pacientes com IC, há necessidade de biomarcadores mais simples, menos dispendiosos e mais facilmente disponíveis. OBJETIVO: Avaliar o valor preditivo do valor pan-imune-inflamatório (PIV, do inglês pan-immune-inflammation value) em pacientes com IC agudamente descompensada. MÉTODOS: Analisamos 409 pacientes com IC com fração de ejeção reduzida internados por IC aguda descompensada. Os pacientes foram divididos em 3 grupos de acordo com os tercis de PIV: tercil 1 (PIV < 357,25), tercil 2 (PIV ≥ 357,25 e < 834,55) e tercil 3 (PIV ≥ 834,55). Foram considerados estatisticamente significativos valores de p < 0,05. Curvas de Kaplan-Meier e modelos de regressão de riscos proporcionais de Cox foram utilizados para avaliar a associação entre PIV e mortalidade por todas as causas. O desfecho primário foi mortalidade por todas as causas em 5 anos, e o desfecho secundário compreendeu a mortalidade por todas as causas intra-hospitalar em 30 dias, em 180 dias e em 1 ano. RESULTADOS: Mostramos que valores mais elevados de PIV estavam associados a desfechos primários e secundários. A curva de Kaplan-Meier mostrou que pacientes com valores mais elevados de PIV apresentaram risco aumentado de mortalidade por todas as causas em curto e longo prazo (log-rank p < 0,001). Na análise multivariada, o PIV foi identificado como um preditor independente de mortalidade por todas as causas em longo prazo em pacientes com IC aguda descompensada, e observamos um aumento de 1,96 vezes no risco de um evento (razão de chances: 1,96; intervalo de confiança de 95%: 1,330 a 2,908; p = 0,001). CONCLUSÕES: Nosso estudo mostrou que o novo biomarcador PIV pode ser usado como preditor de prognóstico em pacientes com IC aguda descompensada.


Assuntos
Biomarcadores , Insuficiência Cardíaca , Humanos , Insuficiência Cardíaca/mortalidade , Insuficiência Cardíaca/imunologia , Insuficiência Cardíaca/fisiopatologia , Masculino , Feminino , Biomarcadores/sangue , Biomarcadores/análise , Idoso , Pessoa de Meia-Idade , Prognóstico , Doença Aguda , Fatores de Tempo , Estimativa de Kaplan-Meier , Volume Sistólico/fisiologia , Valor Preditivo dos Testes , Fatores de Risco , Inflamação/imunologia , Modelos de Riscos Proporcionais , Valores de Referência
2.
Anatol J Cardiol ; 2024 Jan 07.
Artigo em Inglês | MEDLINE | ID: mdl-38168008

RESUMO

BACKGROUND: Atrial fibrillation (AF) is the most prevalent cardiac arrhythmia worldwide and is associated with an increased risk of thromboembolism, ischemic stroke, impaired quality of life, and mortality. The latest research that shows the prevalence and incidence of AF patients in Türkiye was the Turkish Adults' Heart Disease and Risk Factors study, which included 3,450 patients and collected data until 2006/07.The Turkish Real Life Atrial Fibrillation in Clinical Practice (TRAFFIC) study is planned to present current prevalence data, reveal the reflection of new treatment and risk approaches in our country, and develop new prediction models in terms of outcomes. METHODS: The TRAFFIC study is a national, prospective, multicenter, observational registry. The study aims to collect data from at least 1900 patients diagnosed with atrial fibrillation, with the participation of 40 centers from Türkiye. The following data will be collected from patients: baseline demographic characteristics, medical history, vital signs, symptoms of AF, ECG and echocardiographic findings, CHADS2-VASC2 and HAS-BLED (1-year risk of major bleeding) risk scores, interventional treatments, antithrombotic and antiarrhythmic medications, or other medications used by the patients. For patients who use warfarin, international normalized ratio levels will be monitored. Follow-up data will be collected at 6, 12, 18, and 24 months. Primary endpoints are defined as systemic embolism or major safety endpoints (major bleeding, clinically relevant nonmajor bleeding, and minor bleeding as defined by the International Society on Thrombosis and Hemostasis). The main secondary endpoints include major adverse cardiovascular events (systemic embolism, myocardial infarction, and cardiovascular death), all-cause mortality, and hospitalizations due to all causes or specific reasons. RESULTS: The results of the 12-month follow-up of the study are planned to be shared by the end of 2023. CONCLUSION: The TRAFFIC study will reveal the prevalence and incidence, demographic characteristics, and risk profiles of AF patients in Türkiye. Additionally, it will provide insights into how current treatments are reflected in this population. Furthermore, risk prediction modeling and risk scoring can be conducted for patients with AF.

3.
Turk Kardiyol Dern Ars ; 52(1): 27-35, 2024 01.
Artigo em Inglês | MEDLINE | ID: mdl-38221832

RESUMO

OBJECTIVE: The aim of this study was to analyze the role of various ß-blockers in managing exercise-induced blood pressure escalations, referred to as exaggerated blood pressure response (eBPR). Despite the importance of this phenomenon, there is limited data on the efficacy of ß-blockers in controlling eBPR. METHOD: Our retrospective cohort for this study comprised 2,803 individuals who underwent treadmill tests from January 2016 to February 2018. A further subgroup analysis of 1,258 patients receiving ß-blocker treatment was performed to evaluate the influence of different ß-blockers on eBPR. RESULTS: The results demonstrated that ß-blockers play a significant role in mitigating the occurrence of eBPR (P = 0.026), irrespective of the specific type of ß-blocker. Additionally, no significant variance was observed in the development of eBPR among the different ß-blocker groups (P = 0.532 for systolic blood pressure (BP); P = 0.068 for diastolic BP). This finding remained consistent even among the 992 hypertensive patients, where no notable association was found between the type of ß-blocker and the development of eBPR (P = 0.736 for systolic BP; P = 0.349 for diastolic BP). It is noteworthy that patients using ß-blockers had unique clinical and demographic attributes. CONCLUSION: Our study suggests that ß-blockers can potentially deter the development of eBPR during physical activity, a benefit that is consistent across all types of ß-blockers. The study sheds light on prospective randomized studies on the use of eBPR as a new treatment target.


Assuntos
Hipertensão , Humanos , Pressão Sanguínea/fisiologia , Estudos Transversais , Estudos Retrospectivos , Estudos Prospectivos , Hipertensão/tratamento farmacológico , Hipertensão/prevenção & controle , Exercício Físico/fisiologia , Teste de Esforço
4.
J Clin Lipidol ; 17(6): 732-742, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38072583

RESUMO

BACKGROUND AND AIMS: Familial hypercholesterolemia (FH) is a common inherited disease, leading to premature atherosclerotic cardiovascular disease (ASCVD) due to elevated low-density lipoprotein cholesterol (LDL-C) levels. Achieving LDL-C goals is extremely important for preventing the complications of this fatal disease. We evaluated the management of FH patients with ASCVD in cardiology practice. METHODS: We analyzed patients with ASCVD from the nationwide EPHESUS registry, which was conducted in 40 cardiology outpatient clinics, and compared those with and without FH. RESULTS: Of the 1482 consecutively enrolled patients with ASCVD, 618 (41.7%) had FH, among which 455 were categorized as 'Possible FH' and 163 as 'Probable or Definite FH'. Proposed LDL-C goals were not attained in more than 90% of the patients with FH. The proportion of those on statin therapy was 77% for possible and 91% for probable or definite FH, whereas 34.2 % and 59.4% were in use of high-intensity statins, respectively. None of the patients were on PCSK-9 inhibitors, and only 2 used ezetimibe. Adverse media coverage was the most common cause of statin discontinuation (32.5% in 'possible FH' and 45.7% in 'probable/definite FH'). The negative impact of media in the decision to stop lipid lowering therapy (LLT) was increasing with education level. CONCLUSIONS: In real life most of the FH patients with ASCVD are undertreated in cardiology practice regarding statin dosing and combined LLT. Drug discontinuation rates are notably high and are mostly media-related, and side effects very rarely cause cessation of LLT. Urgent measures are needed to increase the awareness of FH among healthcare providers and patients and to develop improved treatment strategies aimed at preventing the complications of FH.


Assuntos
Anticolesterolemiantes , Aterosclerose , Cardiologia , Inibidores de Hidroximetilglutaril-CoA Redutases , Hiperlipoproteinemia Tipo II , Humanos , LDL-Colesterol , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Prevenção Secundária , Hiperlipoproteinemia Tipo II/complicações , Hiperlipoproteinemia Tipo II/tratamento farmacológico , Aterosclerose/complicações , Aterosclerose/tratamento farmacológico , Aterosclerose/prevenção & controle , Sistema de Registros , Anticolesterolemiantes/uso terapêutico
5.
Anatol J Cardiol ; 27(9): 539-548, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37655737

RESUMO

BACKGROUND: Heart failure with preserved ejection fraction is a complex and heterogeneous clinical syndrome, poses significant diagnostic challenges. The HFA-PEFF [Heart Failure Association of ESC diagnostic algorithm, P (Pretest Assessment), E  (Echocardiographic and Natriuretic Peptide score), F1 (Functional testing in Case of Uncertainty), F2 (Final Aetiology)] and H2FPEF [Heavy (BMI>30 kg/m2), Hypertensive (use of ≥2 antihypertensive medications), atrial Fibrillation (paroxysmal or persistent), Pulmonary hypertension (Doppler Echocardiographic estimated Pulmonary Artery Systolic Pressure >35 mm Hg), Elderly (age >60 years), Filling pressure (Doppler Echocardiographic E/e' >9)] scoring systems were developed to aid in diagnosing heart failure with preserved ejection fraction. This study aimed to assess the concordance and clinical accuracy of these scoring systems in the 'A comPrehensive, ObservationaL registry of heart faiLure with mildly reduced and preserved ejection fractiON' cohort. METHODS: A comPrehensive, ObservationaL registry of heart faiLure with mildly reduced and preserved ejection fractiON study was conducted as a multicenter, cross-sectional, and observational study; to evaluate a group of Heart failure with mildly reduced ejection fraction and heart failure with preserved ejection fraction patients who were seen by cardiologists in 13 participating centers across 12 cities in Türkiye. RESULTS: The study enrolled 819 patients with heart failure with preserved ejection fraction, with high probability heart failure with preserved ejection fraction rates of 40% and 26% for HFA-PEFF and H2FPEF scorings, respectively. The concordance between the 2 scoring systems was found to be low (Kendall's taub correlation coefficient of 0.242, P < .001). The diagnostic performance of both scoring systems was evaluated, revealing differences in their approach and ability to accurately identify heart failure with preserved ejection fraction patients. CONCLUSION: The low concordance between the HFA-PEFF and H2FPEF scoring systems underscores the ongoing challenge of accurately diagnosing and managing patients with heart failure with preserved ejection fraction. Clinicians should be aware of the strengths and limitations of each scoring system and use them in conjunction with other clinical and laboratory findings to arrive at an accurate diagnosis. Future research should focus on identifying additional diagnostic factors, developing more accurate and comprehensive diagnostic algorithms, and investigating alternative methods of diagnosis or stratification of patients based on different clinical characteristics.


Assuntos
Fibrilação Atrial , Insuficiência Cardíaca , Idoso , Humanos , Pessoa de Meia-Idade , Estudos Transversais , Volume Sistólico , Insuficiência Cardíaca/diagnóstico por imagem , Anti-Hipertensivos
6.
Anatol J Cardiol ; 27(2): 78-87, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36747449

RESUMO

BACKGROUND: The recent 2019 European Society of Cardiology/European Atherosclerosis Society practice guidelines introduced a new risk categorization for patients with diabetes. We aimed to compare the implications of the 2016 and 2019 European Society of Cardiology/European Atherosclerosis Society guidelines with regard to the lipid-lowering treatment use, low-density lipoprotein cholesterol goal attainment rates, and the estimated proportion of patients who would be at goal in an ideal setting. METHODS: Patients with diabetes were classified into 4 risk categories according to 2019 European Society of Cardiology/European Atherosclerosis Society dyslipidemia guidelines from the database of EPHESUS (cross-sectional, observational, countrywide registry of cardiology outpatient clinics) study. The use of lipid-lowering treatment and low-density lipoprotein cholesterol goal attainment rates were then compared according to previous and new guidelines. RESULTS: This analysis included a total of 873 diabetic adults. Half of the study population (53.8%) were on lipid-lowering treatment and almost one-fifth (19.1%) were on high-intensity statins. While low-density lipoprotein cholesterol goal was achieved in 19.5% and 7.5% of patients, 87.4% and 69.6% would be on target if their lipid-lowering treatment was intensified according to 2016 and 2019 European Society of Cardiology/European Atherosclerosis Society lipid guidelines, respectively. The new target <55 mg/dL could only be achieved in 2.2% and 8.1% of very high-risk primary prevention and secondary prevention patients, respectively. CONCLUSION: The control of dyslipidemia was extremely poor among patients with diabetes. The use of lipid-lowering treatment was not at the desired level, and high-intensity lipid-lowering treatment use was even lower. Our simulation model showed that the high-dose statin plus ezetimibe therapy would improve goal attainment; however, it would not be possible to get goals with this treatment in more than one-third of the patients.


Assuntos
Aterosclerose , Cardiologia , Diabetes Mellitus , Dislipidemias , Inibidores de Hidroximetilglutaril-CoA Redutases , Adulto , Humanos , Objetivos , Estudos Transversais , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , LDL-Colesterol , Aterosclerose/complicações , Diabetes Mellitus/tratamento farmacológico , Dislipidemias/tratamento farmacológico , Dislipidemias/complicações , Percepção
7.
Kardiologiia ; 63(1): 48-53, 2023 Jan 31.
Artigo em Inglês | MEDLINE | ID: mdl-36749201

RESUMO

Aim    The aim of this study was to investigate the relationship between left atrial (LA) abnormalities and ambulatory blood pressure variability (BPV) in heart failure with preserved ejection fraction (HFpEF) patients.Material and methods    In this single-center, prospective study, we included 187 patients with HFpEF. Eighteen patients with poor image quality were excluded from the study. BPV was evaluated using 24-h ambulatory blood pressure (BP) monitoring. The standard deviation of systolic BP (SBP-SD) was calculated to assess BPV. The patients were classified into two groups according to median SBP-SD (10.5 mm Hg).Results    Overall, 169 HFpEF patients (69.2% women, mean age 69.2±11 yrs) were evaluated. There were 98 patients (57.9%) with a SBP-SD greater than 10.5 mm Hg. Patients with higher SPB-SD had significantly higher left atrial stiffness (LASt) and lower LA reservoir strain (LASr) than those with low SPB-SD. LASt was correlated with 24 hr SBP-SD in both sinus rhythm (r= 0.35, p= 0.015) and atrial fibrillation patients (r= 0.32, p= 0.005). There were significant correlations between night-time SBP-SD and LASr (r=-0.23, p=0.045) in HFpEF with sinus rhythm. For all HFpEF patients, multiple regression analyses showed that 24-hr SBP-SD was correlated with LASt (coeff.=0.40, 95%CI= 0.52-5.25, P= 0.017).Conclusions    High BPV is associated with impaired LA function, especially for LASt and LASr. This study may provide insight for larger multicenter studies to evaluate the effects on outcomes in HFpEF.


Assuntos
Fibrilação Atrial , Insuficiência Cardíaca , Humanos , Feminino , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Masculino , Volume Sistólico , Estudos Prospectivos , Pressão Sanguínea , Função do Átrio Esquerdo/fisiologia , Monitorização Ambulatorial da Pressão Arterial
10.
Prehosp Disaster Med ; 37(5): 698-700, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35851434

RESUMO

The coronavirus disease 2019 (COVID-19) pandemic has affected millions of people around the globe and vaccines against the disease have started to develop. Side effects of the vaccine have been reported in the literature, including myocarditis, which has a very low incidence and with a good prognosis. This case report aims to present two medical students' vaccine-induced myocarditis cases after the first doses of BNT162b2.These patients were young males with no previous medical history and both of them had good recovery after the disease. Both of them had their vaccine very recently before the event. These cases show that myocarditis can be seen after the first dose as well.Global vaccination is the most effective prevention method against COVID-19. Considering the fact that morbidities after the disease occur more than the side effects of the vaccine, they are still the best option against the current pandemic.


Assuntos
COVID-19 , Vacinas contra Influenza , Influenza Humana , Miocardite , Vacina BNT162 , COVID-19/prevenção & controle , Humanos , Influenza Humana/epidemiologia , Masculino , Miocardite/induzido quimicamente
12.
Acta Cardiol ; 77(1): 37-44, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34218753

RESUMO

BACKGROUND: Data on the clinical course and outcomes of COVID-19 disease among patients with a history of heart failure (HF) are scarce. Therefore, the aim of this study was to assess the clinical characteristics, prognostic biomarkers and in-hospital outcomes of patients with a history of HF hospitalised with confirmed COVID-19. METHODS: A total of 8321 consecutive patients hospitalised with suspected COVID-19 disease were screened. Furthermore, 3849 patients with laboratory-confirmed SARS-CoV-2 infection were included in the study. Two hundred and forty COVID-19 patients with a history of HF and 240 without HF paired with PSM were evaluated. RESULTS: Mean age was 72.7 ± 9.90 years, and 64.6% were men. Oxygen saturation, systolic and diastolic blood pressure at admission were significantly lower and heart rate was significantly higher in patients with a history of HF compared to those without. Patients with HF, compared to those without, had significantly higher leukocyte count, D-dimer, CRP, procalcitonin, hsTnI, lactate and lower albumin and lymphocyte. Compared with patients without HF, those with previous HF had a longer length of stay at ICU (6.22 d vs. 3.71 d; p < 0.001), increased risk of mechanical ventilation (42.1% vs. 15.4%; p < 0.001), in-hospital death (39.2% vs. 15.4%; p < 0.001) and composite outcomes (52.9% vs. 17.1%; p < 0.001). CONCLUSION: History of HF is associated with a higher risk of mechanical ventilation, cardiogenic shock, mortality and longer ICU stay in patients hospitalised for COVID-19, therefore the diagnosis of HF alone is important for predicting clinical outcomes.


Assuntos
COVID-19 , Insuficiência Cardíaca , Idoso , Idoso de 80 Anos ou mais , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/epidemiologia , Insuficiência Cardíaca/terapia , Mortalidade Hospitalar , Hospitalização , Hospitais , Humanos , Masculino , Pessoa de Meia-Idade , Pontuação de Propensão , SARS-CoV-2
16.
Turk J Med Sci ; 51(5): 2437-2444, 2021 10 21.
Artigo em Inglês | MEDLINE | ID: mdl-33992041

RESUMO

Background/aim: It is known that the presence of fragmented QRS (fQRS) on electrocardiography (ECG) is associated with cardiovascular events. The aim of this study was the evaluation of fQRS formation and its relationship with the left ventricular hypertrophy (LVH) parameters in acromegaly patients. Materials and methods: In total, 47 previously diagnosed with non-hypertensive acromegaly patients and 48 control subjects were included in the study. ECG and transthoracic echocardiography (TTE) were performed for each participant. Acromegaly patients were divided into two groups according to the fQRS formation on the ECG. Left ventricular wall thicknesses, and left atrial diameter (LAD), left ventricular mass (LVM), left ventricular mass index (LVMi), and relative wall thickness (RWT) were obtained. Results: In control group 5 (10.4%) and in acromegaly group 17 (36.2%) patients had fQRS on ECG (p = 0.003). LAD [36.0 (34.0­38.0) vs. 38.0 (35.0­41.0) mm, p < 0.001], LVM [155.27 ± 27.00 vs. 173.0 (153.0­235.0) g, p < 0.001], LVMi [83.12 ± 13.19 vs. 92.0 (83.0­118.0) g/m², p < 0.001] and RWT [0.39 ± 0.03 vs. 0.43 (0.41­0.45), p = 0.001] were significantly higher in patients with acromegaly. Disease duration was significantly higher (11.59 ± 1.3 vs. 8.2 ± 1.8 years, p < 0.001) in the fQRS (+) group. LAD [41.0 (39.0­42.5) vs. 37.0 (34.7­38.0) mm, p < 0.001], LVM [219.0 (160.5­254.5) vs. 164.0 (153.0­188.0) g, p = 0.017], LVMi [117.0 (92.5­128.5) vs. 86.0 (82.0­100.2) g/m², p = 0.013] and RWT [0.44 (0.42­0.49) vs. 0.43 (0.40­0.44), p = 0.037] were significantly higher in fQSR (+) acromegaly patients. In multivariate logistic regression analysis, disease duration (odds ratio: 10.05, 95% CI: 1.099­92.012, p = 0.041) and LAD (odds ratio: 2.19, 95% CI: 1.030­4.660, p = 0.042) were found to be the independent predictors of fQRS formation. Conclusion: The results of our study revealed that fQRS (+) acromegaly patients had increased LVH parameters compared to fQRS (-) patients.


Assuntos
Acromegalia/diagnóstico por imagem , Ventrículos do Coração/diagnóstico por imagem , Hipertrofia Ventricular Esquerda/diagnóstico por imagem , Acromegalia/complicações , Adulto , Idoso , Ecocardiografia , Eletrocardiografia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
19.
J Stroke Cerebrovasc Dis ; 30(5): 105706, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33690030

RESUMO

BACKGROUND: Heart and brain interaction is a well-known entity in heart failure (HF) and left ventricular systolic dysfunction poses an increased risk for stroke and cognitive impairment. Transcranial Doppler (TCD) provides valuable information on cerebral blood flow velocities (CBFV). However, less is known about CBFV in HF patients with reduced EF. So, we aimed to evaluate CBFV by means of TCD in patients with HF and reduced ejection fraction (HFrEF). METHODS: This study included 46 HFrEF patients (mean age 65.2±11 years, mean EF 20.1±3.8%) who underwent to TCD examination. In addition, 26 healthy individuals with sinus rhythm and EF >50% were included in the study as a control group. Peak systolic, mean and end diastolic flow velocities of the both right and left middle cerebral artery (RMCA and LMCA) were analyzed. In subgroup analysis, HFrEF patients compared according to rhythm. Correlation analyses was performed in HFrEF group between EF and TCD velocities. RESULTS: The average of RMCA and LMCA peak systolic and mean flow velocities were significantly lower in HF patients than those in control group (76,06±23,7 cm/s and 48,49±16,4 cm/s in HF group vs 87,84±14,5 cm/s and 56,41±10,7 cm/s in control group, p=0,025 and p=0,016, respectively, for RMCA and 75,1±22,3 cm/s and 47,57±14.8 cm/s in HF group vs 88,73±17,7 cm/s and 57,15±12,4 cm/s in control group, p=0,009 and p=0,007, respectively, for LMCA). The average mean flow velocity of RMCA and LMCA was significantly lower in HFrEF patients with AF than HFrEF patients with sinus rhythm. (P=0.04 and P= 0.03, respectively) In correlation analysis, EF was significantly positively correlated with both LMCA and RMCA flow velocities in HFrEF group. CONCLUSION: This study showed that HFrEF patients have lower CBFV as compared to healthy controls and HFrEF patients with AF rhythm have lower CBFV compared to HFrEF with sinus rhythm which might be one of the explanations of the adverse interaction between heart and brain in HFrEF.


Assuntos
Circulação Cerebrovascular , Insuficiência Cardíaca/diagnóstico por imagem , Artéria Cerebral Média/diagnóstico por imagem , Volume Sistólico , Ultrassonografia Doppler Transcraniana , Função Ventricular Esquerda , Idoso , Fibrilação Atrial/diagnóstico , Fibrilação Atrial/fisiopatologia , Velocidade do Fluxo Sanguíneo , Feminino , Insuficiência Cardíaca/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Artéria Cerebral Média/fisiopatologia , Valor Preditivo dos Testes , Estudos Retrospectivos
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