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1.
Hypertension ; 81(2): 255-263, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38047358

RESUMO

BACKGROUND: Hypertensive disorders of pregnancy (HDP) are associated with long-term maternal risks for cardiovascular disease for reasons that remain incompletely understood. METHODS: The HCHS/SOL (Hispanic Community Health Study/Study of Latinos), a multi-center community-based cohort of Hispanic/Latino adults recruited 2008 to 2011, was used to evaluate the associations of history of de novo HDP (gestational hypertension, preeclampsia, eclampsia) with echocardiographic measures of cardiac structure and function in Hispanic/Latina women with ≥1 prior pregnancy and the proportion of association mediated by current hypertension (>140/90 mm Hg or antihypertensive therapy). RESULTS.: The study cohort included 5168 Hispanic/Latina women with an average age (SD) of 58.7 (9.7) years at time of echocardiogram. Prior de novo HDP was reported by 724 (14%) of the women studied and was associated with lower left ventricle (LV) ejection fraction -0.66 (95% confidence interval [CI], -1.21 to -0.11), higher LV relative wall thickness 0.09 (95% CI, 0-0.18), and 1.39 (95% CI, 1.02-1.89) higher risk of abnormal LV geometry after adjusting for blood pressure and other confounders. The proportion of the association mediated by current hypertension between HDP and LV ejection fraction was 0.09 (95% CI, 0.03-0.45), LV relative wall thickness was 0.28 (95% CI, 0.16-0.51), abnormal LV geometry was 0.14 (95% CI, 0.12-0.48), concentric left ventricular hypertrophy was 0.31 (95% CI, 0.19-0.86), and abnormal LV diastolic dysfunction was 0.58 (95% CI, 0.26-0.79). CONCLUSIONS.: In a large cohort of Hispanic/Latina women those with history of de novo HDP had detectable and measurable subclinical alterations in cardiac structure and both systolic and diastolic dysfunction that were only partially mediated by current hypertension.


Assuntos
Hipertensão Induzida pela Gravidez , Pré-Eclâmpsia , Disfunção Ventricular Esquerda , Feminino , Humanos , Pessoa de Meia-Idade , Gravidez , Pressão Sanguínea , Hispânico ou Latino , Hipertensão Induzida pela Gravidez/epidemiologia , Disfunção Ventricular Esquerda/diagnóstico por imagem , Disfunção Ventricular Esquerda/epidemiologia , Idoso
2.
Nurs Adm Q ; 48(1): 33-48, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38051208

RESUMO

Cedars-Sinai is a sixth continuous Magnet organization in Southern California that embodies inclusive leadership in support of diversity, equity, inclusion, and justice (DEIJ) principles. The organization adheres to a strategic model prioritizing staff sense of belonging, empowerment, engagement, curiosity, and creativity. Employing inclusive leadership, we have implemented strong programs of professional development and continuous learning, innovation, and research. This leadership and these programs have fostered a culture of inquiry, support evidence-driven practice, quality improvement, and staff engagement. Our organization is committed to creating a caring and healing environment that promotes performance. We believe in practicing loving-kindness toward ourselves and others as a core value. Executive leadership support has been a key element in our successful implementation of DEIJ strategies, including employee resource groups, Shared Leadership Councils, transition to practice programs, health equity research, and innovative solutions. These strategies have been shown to yield a significant return on investment.


Assuntos
Diversidade, Equidade, Inclusão , Emprego , Humanos , Empoderamento , Criatividade , Justiça Social , Liderança , Cultura Organizacional
3.
J Am Heart Assoc ; 12(23): e031970, 2023 Dec 05.
Artigo em Inglês | MEDLINE | ID: mdl-38052651

Assuntos
Médicos , Humanos , Frutas
5.
J Am Coll Cardiol ; 80(10): 1014-1022, 2022 09 06.
Artigo em Inglês | MEDLINE | ID: mdl-36049799

RESUMO

The Cardiovascular Disease in Women Committee of the American College of Cardiology convened a working group to develop a consensus regarding the continuing rise of mortality rates in young women aged 35 to 54 years. Heart disease mortality rates in young women continue to increase. Young women have increased mortality secondary to ischemic heart disease (IHD) compared with comparably aged men and similar mortality to that observed among older women. The authors reviewed the published evidence, including observational and mechanistic/translational data, and identified knowledge gaps pertaining to young women. This paper provides clinicians with pragmatic, evidence-based management strategies for young women at risk for IHD. Next-step research opportunities are outlined. This report presents highlights of the working group review and a summary of suggested research directions to advance the IHD field in the next decade.


Assuntos
Doenças Cardiovasculares , Isquemia Miocárdica , Idoso , Feminino , Humanos , Masculino , Isquemia Miocárdica/epidemiologia , Fatores de Risco , Fatores Sexuais
7.
Maturitas ; 166: 14-20, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36027726

RESUMO

Dyslipidemia is an established risk factor for cardiovascular disease (CVD), which remains the leading cause of morbidity and mortality in women globally. The incidence of dyslipidemia increases over a woman's lifespan, with adverse changes around the time of menopause. Menopause, and the years leading up to the final menstrual period, is a time of estrogen fluctuation and ultimately estrogen deficiency, which has been associated with proatherogenic changes in the lipid profile. Independent of aging, menopausal status is associated with elevations in serum total cholesterol, LDL cholesterol, apolipoproteins, and triglycerides, and decreases in HDL cholesterol (HDL-C). Emerging research also suggests that after menopause there is a loss of functional HDL cardioprotective properties. Early initiation of menopausal hormone therapy (MHT) confers a favorable effect on lipid profile, though this does not translate into improved CVD outcomes and therefore guidelines do not indicate it for primary or secondary prevention of CVD. At the time of menopause, special consideration should be given to women with conditions more associated with CVD, including polycystic ovarian syndrome, premature menopause, early menopause, premature ovarian insufficiency, and familial hypercholesterolemia. Statins remain the mainstay of dyslipidemia therapy, though novel lipid-lowering agents are emerging. This review provides an overview of lipid alterations observed during the menopausal transition, summarizes the current evidence on the role of estrogen and progestogen on lipids, identifies special populations of women at especially high risk for lipid dysregulation at menopause, and describes approaches to the screening and treatment of midlife women.


Assuntos
Doenças Cardiovasculares , Dislipidemias , Menopausa Precoce , Feminino , Humanos , Menopausa , Estrogênios/uso terapêutico , Doenças Cardiovasculares/etiologia , Doenças Cardiovasculares/prevenção & controle , Doenças Cardiovasculares/epidemiologia , Triglicerídeos , Dislipidemias/complicações , Dislipidemias/tratamento farmacológico
8.
BMJ Open ; 12(5): e059994, 2022 05 24.
Artigo em Inglês | MEDLINE | ID: mdl-35613792

RESUMO

OBJECTIVES: We sought to understand the demographic and clinical factors associated with variations in longitudinal antibody response following completion of two-dose regiment of BNT162b2 vaccination. DESIGN: This study is a 10-month longitudinal cohort study of healthcare workers and serially measured anti-spike protein IgG (IgG-S) antibody levels using mixed linear models to examine their associations with participant characteristics. SETTING: A large, multisite academic medical centre in Southern California, USA. PARTICIPANTS: A total of 843 healthcare workers met inclusion criteria including completion of an initial two-dose course of BNT162b2 vaccination, complete clinical history and at least two blood samples for analysis. Patients had an average age of 45±13 years, were 70% female and 7% with prior SARS-CoV-2 infection. RESULTS: Vaccine-induced IgG-S levels remained in the positive range for 99.6% of individuals up to 10 months after initial two-dose vaccination. Prior SARS-CoV-2 infection was the primary correlate of sustained higher postvaccination IgG-S levels (partial R2=0.133), with a 1.74±0.11 SD higher IgG-S response (p<0.001). Female sex (beta 0.27±0.06, p<0.001), younger age (0.01±0.00, p<0.001) and absence of hypertension (0.17±0.08, p=0.003) were also associated with persistently higher IgG-S responses. Notably, prior SARS-CoV-2 infection augmented the associations of sex (-0.42 for male sex, p=0.08) and modified the associations of hypertension (1.17, p=0.001), such that infection-naïve individuals with hypertension had persistently lower IgG-S levels whereas prior infected individuals with hypertension exhibited higher IgG-S levels that remained augmented over time. CONCLUSIONS: While the IgG-S antibody response remains in the positive range for up to 10 months following initial mRNA vaccination in most adults, determinants of sustained higher antibody levels include prior SARS-CoV-2 infection, female sex, younger age and absence of hypertension. Certain determinants of the longitudinal antibody response appear significantly modified by prior infection status. These findings offer insights regarding factors that may influence the 'hybrid' immunity conferred by natural infection combined with vaccination.


Assuntos
COVID-19 , Hipertensão , Centros Médicos Acadêmicos , Adulto , Anticorpos Antivirais , Formação de Anticorpos , Vacina BNT162 , COVID-19/epidemiologia , COVID-19/prevenção & controle , Vacinas contra COVID-19 , Estudos de Coortes , Demografia , Feminino , Pessoal de Saúde , Humanos , Imunoglobulina G , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , SARS-CoV-2 , Vacinação
9.
J Am Heart Assoc ; 11(8): e024229, 2022 04 19.
Artigo em Inglês | MEDLINE | ID: mdl-35435011

RESUMO

Background Team-based models of cardio-obstetrics care have been developed to address the increasing rate of maternal mortality from cardiovascular diseases. Cardiovascular clinician and trainee knowledge and comfort with this topic, and the extent of implementation of an interdisciplinary approach to cardio-obstetrics, are unknown. Methods and Results We aimed to assess the current state of cardio-obstetrics knowledge, practices, and services provided by US cardiovascular clinicians and trainees. A survey developed in conjunction with the American College of Cardiology was circulated to a representative sample of cardiologists (N=311), cardiovascular team members (N=51), and fellows in training (N=139) from June 18, 2020, to July 29, 2020. Knowledge and attitudes about the provision of cardiovascular care to pregnant patients and the prevalence and composition of cardio-obstetrics teams were assessed. The widest knowledge gaps on the care of pregnant compared with nonpregnant patients were reported for medication safety (42%), acute coronary syndromes (39%), aortopathies (40%), and valvular heart disease (30%). Most respondents (76%) lack access to a dedicated cardio-obstetrics team, and only 29% of practicing cardiologists received cardio-obstetrics didactics during training. One third of fellows in training reported seeing pregnant women 0 to 1 time per year, and 12% of fellows in training report formal training in cardio-obstetrics. Conclusions Formalized training in cardio-obstetrics is uncommon, and limited access to multidisciplinary cardio-obstetrics teams and large knowledge gaps exist among cardiovascular clinicians. Augmentation of cardio-obstetrics education across career stages is needed to reduce these deficits. These survey results are an initial step toward developing a standard expectation for clinicians' training in cardio-obstetrics.


Assuntos
Cardiologistas , Cardiologia , Doenças Cardiovasculares , Obstetrícia , Cardiologia/educação , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/terapia , Feminino , Humanos , Mortalidade Materna , Gravidez , Estados Unidos
10.
Circ Res ; 130(4): 652-672, 2022 02 18.
Artigo em Inglês | MEDLINE | ID: mdl-35175837

RESUMO

Beyond conventional risk factors for cardiovascular disease, women face an additional burden of sex-specific risk factors. Key stages of a woman's reproductive history may influence or reveal short- and long-term cardiometabolic and cardiovascular trajectories. Early and late menarche, polycystic ovary syndrome, infertility, adverse pregnancy outcomes (eg, hypertensive disorders of pregnancy, gestational diabetes, preterm delivery, and intrauterine growth restriction), and absence of breastfeeding are all associated with increased future cardiovascular disease risk. The menopause transition additionally represents a period of accelerated cardiovascular disease risk, with timing (eg, premature menopause), mechanism, and symptoms of menopause, as well as treatment of menopause symptoms, each contributing to this risk. Differences in conventional cardiovascular disease risk factors appear to explain some, but not all, of the observed associations between reproductive history and later-life cardiovascular disease; further research is needed to elucidate hormonal effects and unique sex-specific disease mechanisms. A history of reproductive risk factors represents an opportunity for comprehensive risk factor screening, refinement of cardiovascular disease risk assessment, and implementation of primordial and primary prevention to optimize long-term cardiometabolic health in women.


Assuntos
Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/fisiopatologia , Complicações Cardiovasculares na Gravidez/epidemiologia , Complicações Cardiovasculares na Gravidez/fisiopatologia , Resultado da Gravidez/epidemiologia , Reprodução/fisiologia , Doenças Cardiovasculares/diagnóstico , Feminino , Humanos , Gravidez , Complicações Cardiovasculares na Gravidez/diagnóstico , Fatores de Risco
11.
BMC Infect Dis ; 22(1): 178, 2022 Feb 23.
Artigo em Inglês | MEDLINE | ID: mdl-35197000

RESUMO

BACKGROUND: Seasonal and regional surges in COVID-19 have imposed substantial strain on healthcare systems. Whereas sharp inclines in hospital volume were accompanied by overt increases in case fatality rates during the very early phases of the pandemic, the relative impact during later phases of the pandemic are less clear. We sought to characterize how the 2020 winter surge in COVID-19 volumes impacted case fatality in an adequately-resourced health system. METHODS: We performed a retrospective cohort study of all adult diagnosed with COVID-19 in a large academic healthcare system between August 25, 2020 to May 8, 2021, using multivariable logistic regression to examine case fatality rates across 3 sequential time periods around the 2020 winter surge: pre-surge, surge, and post-surge. Subgroup analyses of patients admitted to the hospital and those receiving ICU-level care were also performed. Additionally, we used multivariable logistic regression to examine risk factors for mortality during the surge period. RESULTS: We studied 7388 patients (aged 52.8 ± 19.6 years, 48% male) who received outpatient or inpatient care for COVID-19 during the study period. Patients treated during surge (N = 6372) compared to the pre-surge (N = 536) period had 2.64 greater odds (95% CI 1.46-5.27) of mortality after adjusting for sociodemographic and clinical factors. Adjusted mortality risk returned to pre-surge levels during the post-surge period. Notably, first-encounter patient-level measures of illness severity appeared higher during surge compared to non-surge periods. CONCLUSIONS: We observed excess mortality risk during a recent winter COVID-19 surge that was not explained by conventional risk factors or easily measurable variables, although recovered rapidly in the setting of targeted facility resources. These findings point to how complex interrelations of population- and patient-level pandemic factors can profoundly augment health system strain and drive dynamic, if short-lived, changes in outcomes.


Assuntos
COVID-19 , Adulto , Idoso , Feminino , Mortalidade Hospitalar , Hospitais , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , SARS-CoV-2 , Estações do Ano
12.
J Am Coll Cardiol ; 77(14): 1799-1812, 2021 04 13.
Artigo em Inglês | MEDLINE | ID: mdl-33832606

RESUMO

Acquired cardiovascular conditions are a leading cause of maternal morbidity and mortality. A growing number of pregnant women have acquired and heritable cardiovascular conditions and cardiovascular risk factors. As the average age of childbearing women increases, the prevalence of acute coronary syndromes, cardiomyopathy, and other cardiovascular complications in pregnancy are also expected to increase. This document, the third of a 5-part series, aims to provide practical guidance on the management of such conditions encompassing pre-conception through acute management and considerations for delivery.


Assuntos
Doenças Cardiovasculares , Complicações Cardiovasculares na Gravidez , Risco Ajustado/métodos , Doenças Cardiovasculares/classificação , Doenças Cardiovasculares/fisiopatologia , Doenças Cardiovasculares/terapia , Feminino , Fatores de Risco de Doenças Cardíacas , Humanos , Administração dos Cuidados ao Paciente/métodos , Período Periparto , Guias de Prática Clínica como Assunto , Gravidez , Complicações Cardiovasculares na Gravidez/classificação , Complicações Cardiovasculares na Gravidez/fisiopatologia , Complicações Cardiovasculares na Gravidez/terapia
13.
Nurse Lead ; 19(2): 170-178, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32922217

RESUMO

A multispecialty nursing team plays a crucial role in key decision making, education, prevention, screening, assessment, diagnosis, management, data collection and dissemination of best practices during the novel coronavirus disease (COVID-19) pandemic. Using examples from a large, tertiary medical center in Los Angeles, this paper highlights contributions made by multispecialty nursing specialties to optimize health and safety for patients and frontline health care workers. Recognizing nurses' ongoing critical role encourages and informs further collaboration and serves as a catalyst to innovation for a healthier tomorrow. The result of the COVID-19 pandemic will be felt for years to come.

14.
Can J Cardiol ; 37(1): 86-93, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-32376344

RESUMO

BACKGROUND: There is limited evidence on the influence of sex on the decision to implant a cardiac resynchronization therapy device with pacemaker (CRT-P) or defibrillator (CRT-D) and the existence of sex-dependent differences in complications that may affect this decision. METHODS: All patients undergoing de novo CRT implantation (2004-2014) in the United States National Inpatient Sample were included and stratified by device type (CRT-P and CRT-D). Multivariable logistic regression models were conducted to assess the association of female sex with receipt of CRT-D and periprocedural complications. RESULTS: Out of 400,823 weighted CRT procedural records, the overall percentages of women undergoing CRT-P and CRT-D implantations were 41.5% and 27.8%, respectively, and these percentages increased compared with men over the study period. Women were less likely to receive CRT-D (odds ratio 0.66, 95% confidence interval 0.64-0.67), and this trend remained stable throughout the study period (P = 0.06). Furthermore, compared with men, women were associated with increased odds of procedure-related complications (bleeding, thoracic, and cardiac) in the CRT-D group but not in the CRT-P group. Factors such as atrial fibrillation, malignancies, renal failure, advanced age (> 60 years), and admission to nonurban/small hospitals favoured the receipt of CRT-P over CRT-D, whereas history of ischemic heart disease, cardiac arrest ,or ventricular arrhythmias favoured the receipt of CRT-D over CRT-P. CONCLUSIONS: Women were associated with persistently reduced odds of receipt of CRT-D compared with men over an 11-year period. This study identifies important factors that predict the choice of CRT device offered to patients in the United States.


Assuntos
Desfibriladores Implantáveis/estatística & dados numéricos , Disparidades em Assistência à Saúde , Marca-Passo Artificial/estatística & dados numéricos , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Terapia de Ressincronização Cardíaca/efeitos adversos , Bases de Dados Factuais , Feminino , Cardiopatias/epidemiologia , Número de Leitos em Hospital/estatística & dados numéricos , Hospitais Urbanos/estatística & dados numéricos , Humanos , Masculino , Medicare/estatística & dados numéricos , Pessoa de Meia-Idade , Neoplasias/epidemiologia , Insuficiência Renal/epidemiologia , Distribuição por Sexo , Fatores Sexuais , Estados Unidos/epidemiologia
15.
Int J Cardiol ; 316: 1-6, 2020 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-32320779

RESUMO

BACKGROUND: Up to two-thirds of patients with obstructive coronary artery disease (CAD) have silent ischemia (SI), which predicts an adverse prognosis and can be a treatment target in obstructive CAD. Over 50% of women with ischemia and no obstructive CAD have coronary microvascular dysfunction (CMD), which is associated with adverse cardiovascular outcomes. We aimed to investigate the prevalence of SI in CMD in order to consider it as a potential treatment target. METHODS: 36 women with CMD by coronary reactivity testing and 16 age matched reference subjects underwent 24-h 12-lead ambulatory ECG monitoring (Mortara Instruments) after anti-ischemia medication withdrawal. Ambulatory ECG recordings were reviewed by two-physician consensus masked to subject status for SI measured by evidence of ≥1 minute horizontal or downsloping ST segment depression ≥1.0 mm, measured 80 ms from the J point. RESULTS: Demographics, resting heart rate, and systolic blood pressure were similar between CMD and reference subjects. Thirty-nine percent of CMD women had a total of 26 SI episodes vs. 0 episodes in the reference group (p = 0.002). Among these women 13/14 (93%) had SI, and few episodes (3/26, 12%) were symptomatic. Mean HR at the onset of SI was 96 ±â€¯13 bpm and increased to 117 ±â€¯16 bpm during the ischemic episodes. 87% reported symptoms that were not associated with ST depressions. CONCLUSIONS: Ambulatory ischemia is prevalent in women with CMD, with a majority being SI, while most reported symptoms were not accompanied by ambulatory ischemia. Clinical trials evaluating anti-ischemic medications should be considered in the CMD population.


Assuntos
Doença da Artéria Coronariana , Isquemia Miocárdica , Sistema Nervoso Autônomo , Doença da Artéria Coronariana/diagnóstico , Doença da Artéria Coronariana/epidemiologia , Eletrocardiografia , Eletrocardiografia Ambulatorial , Feminino , Humanos , Isquemia Miocárdica/diagnóstico , Isquemia Miocárdica/epidemiologia
16.
Clin Cardiol ; 43(6): 553-559, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32304143

RESUMO

Adverse pregnancy outcomes including hypertensive disorders of pregnancy and gestational diabetes are significant causes of maternal mortality. There is substantial evidence of an association between adverse events during pregnancy and long-term maternal cardiovascular risk. It is therefore important to understand the role of risk modification prior to, during, and after pregnancy to reduce adverse outcomes. These efforts include risk assessment, routine screening for cardiovascular risk factors, and potential pharmacotherapeutic risk reduction. In this manuscript, we aim to highlight the current evidence in the areas of cardiovascular risk assessment and risk modification, and the role for potential risk reduction therapies before, during, and after pregnancy.


Assuntos
Doenças Cardiovasculares/prevenção & controle , Complicações Cardiovasculares na Gravidez/prevenção & controle , Feminino , Humanos , Gravidez , Resultado da Gravidez , Fatores de Risco
18.
J Womens Health (Larchmt) ; 28(11): 1522-1528, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-31390299

RESUMO

Background: Spontaneous preterm delivery (sPTD) is associated with a twofold increased risk of future maternal cardiovascular disease. We hypothesized that women with sPTD would demonstrate greater vascular dysfunction postpartum compared to women with term delivery. Materials and Methods: In a case-controlled, matched pilot study, we enrolled 20 women with sPTD (gestation ≤34 weeks), and 20 term control women (gestation ≥39 weeks) were matched for age (±5 years), parity, ethnicity, and route of delivery. Vascular function, serum lipids, C-reactive protein, and interleukin-6 were completed within 24-72 hours postpartum. Statistical analysis included paired t-tests based on match and mixed effects linear regression models and adjusted for potential confounders. Results: The mean age for sPTD and term controls was 33 ± 6 years and 32 ± 6 years, respectively. Women with sPTD had significantly lower augmentation index-75 (24.1% ± 16.1% vs. 39.9% ± 15.2%, p = 0.001) and central pulse pressure (29.1 ± 5.4 mmHg vs. 34.6 ± 4.7 mmHg, p = 0.004), but no difference in pulse wave velocity (5.1 ± 1.6 m/s vs. 5.6 ± 1.5 m/s, p = 0.12) compared to controls. Women with sPTD had significantly lower high-density lipoprotein cholesterol (59.4 ± 12.5 mg/dL vs. 67.6 ± 13.1 mg/dL, p = 0.035) compared to controls. Analysis of chorioamnionitis and magnesium sulfate did not alter the results. Conclusions: Women with sPTD have signs of lower smooth muscle tone in the early postpartum period compared to women with term delivery. Further research is required to understand mechanistic pathways in sPTD and future maternal cardiovascular disease risk.


Assuntos
Doença da Artéria Coronariana/epidemiologia , Lipídeos/sangue , Nascimento Prematuro/epidemiologia , Adulto , Estudos de Casos e Controles , Feminino , Humanos , Projetos Piloto , Gravidez , Estudos Prospectivos , Análise de Onda de Pulso , Fatores de Risco
19.
Int J Cardiol ; 276: 8-13, 2019 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-30293664

RESUMO

BACKGROUND: In a prior trial of late sodium channel inhibition (ranolazine) among symptomatic subjects without obstructive coronary artery disease (CAD) and limited myocardial perfusion reserve index (MPRI), we observed no improvement in angina or MPRI, overall. Here we describe the clinical characteristics and myocardial perfusion responses of a pre-defined subgroup who had coronary flow reserve (CFR) assessed invasively. METHODS: Symptomatic patients without obstructive CAD and limited MPRI in a randomized, double-blind, crossover trial of ranolazine vs. placebo were subjects of this prespecified substudy. Because we had previously observed that adverse outcomes and beneficial treatment responses occurred in those with lower CFR, patients were subgrouped by CFR <2.5 vs ≥2.5. Symptoms were assessed using the Seattle Angina Questionnaire and the SAQ-7, and left-ventricular volume and MPRI were assessed by magnetic resonance imaging (MRI). Coronary angiograms, CFR, and MRI data were analyzed by core labs masked to treatment and patient characteristics. RESULTS: During qualifying coronary angiography, 81 patients (mean age 55 years, 98% women) had invasively determined CFR 2.69 ±â€¯0.65 (mean ±â€¯SD; range 1.4-5.5); 43% (n = 35) had CFR <2.5. Demographic and symptomatic findings did not differ comparing CFR subgroups. Those with low CFR had improved angina (p = 0.04) and midventricular MPRI (p = 0.03) with ranolazine vs placebo. Among patients with low CFR, reduced left-ventricular end-diastolic volume predicted a beneficial angina response. CONCLUSIONS: Symptomatic patients with CFR <2.5 and no obstructive CAD had improved angina and myocardial perfusion with ranolazine, supporting the hypothesis that the late sodium channel is important in management of coronary microvascular dysfunction. TRIAL REGISTRATION: clinicaltrials.gov Identifier NCT01342029.


Assuntos
Angina Pectoris/tratamento farmacológico , Doença da Artéria Coronariana/tratamento farmacológico , Isquemia Miocárdica/tratamento farmacológico , Imagem de Perfusão do Miocárdio/tendências , Ranolazina/administração & dosagem , Bloqueadores dos Canais de Sódio/administração & dosagem , Adulto , Idoso , Angina Pectoris/diagnóstico por imagem , Angina Pectoris/epidemiologia , Angiografia Coronária/tendências , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/epidemiologia , Circulação Coronária/efeitos dos fármacos , Circulação Coronária/fisiologia , Estudos Cross-Over , Método Duplo-Cego , Feminino , Humanos , Microcirculação/efeitos dos fármacos , Microcirculação/fisiologia , Pessoa de Meia-Idade , Isquemia Miocárdica/diagnóstico por imagem , Isquemia Miocárdica/epidemiologia , Índice de Gravidade de Doença
20.
Circulation ; 137(8): 865-871, 2018 02 20.
Artigo em Inglês | MEDLINE | ID: mdl-29459472

RESUMO

Cardiovascular disease (CVD) risk factors are well established. However, little is known about a woman's cardiovascular response to pregnancy, which appears to be an early marker of future maternal CVD risk. Spontaneous preterm delivery (sPTD) has been associated with a ≤3-fold increased risk of maternal CVD death later in life compared with having a term delivery. This review focuses on 3 key areas to critically assess the association of sPTD and future maternal CVD risk: (1) CVD risk factors, (2) inflammatory biomarkers of interest, and (3) specific forms of vascular dysfunction, such as endothelial function and arterial stiffness, and mechanisms by which each may be linked to sPTD. The association of sPTD with subsequent future maternal CVD risk suggests that a woman's abnormal response to pregnancy may serve as her first physiological stress test. These findings suggest that future research is needed to understand why women with sPTD may be at risk for CVD to implement effective interventions earlier in a woman's life.


Assuntos
Trabalho de Parto Prematuro , Complicações Cardiovasculares na Gravidez , Endotélio Vascular/metabolismo , Endotélio Vascular/fisiopatologia , Feminino , Humanos , Trabalho de Parto Prematuro/etiologia , Trabalho de Parto Prematuro/metabolismo , Trabalho de Parto Prematuro/fisiopatologia , Gravidez , Complicações Cardiovasculares na Gravidez/metabolismo , Complicações Cardiovasculares na Gravidez/fisiopatologia , Fatores de Risco , Rigidez Vascular
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