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1.
J Am Soc Echocardiogr ; 37(5): 518-529, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38467311

RESUMO

BACKGROUND: The etiology and significance of coronary artery tortuosity (TCA) among patients with spontaneous coronary artery dissection (SCAD) are unknown. The aim of this prospective imaging cohort study was to report echocardiographic findings and evaluate whether TCA correlates with cardiac anatomy and function among patients with SCAD. Comorbidities including fibromuscular dysplasia (FMD) and outcomes were also assessed. METHODS: TCA was determined on coronary angiography performed during the diagnosis of SCAD, and cardiac structure and function were evaluated using prospective comprehensive echocardiography. RESULTS: Among 116 patients with SCAD, the mean age at echocardiography was 50.8 ± 8.8 years, a median of 10.9 months after SCAD. Sixty-two patients (53.4%) had FMD, 41 (35.3%) had histories of hypertension, and 17 (14.8%) were hypertensive during echocardiography. Most patients (n = 78 [69%]) had normal left ventricular geometry with normal median ejection fraction (61%; interquartile range, 56% to 64%) and normal global longitudinal strain (-22.2%; interquartile range, -24.0% to -19.9%). Fifteen patients (13.4%) had diastolic dysfunction that was associated with hypertension at the time of echocardiography. Patients with TCA (n = 96 [82.8%]) were older (mean age, 52.1 ± 8.0 vs 44.7 ± 9.9 years; P < .001) with a higher prevalence of FMD (59.4% vs 25%, P = .007) but a similar prevalence of hypertension (35% vs 35%, P > .99) compared with patients without TCA. Across the age range (31.5 to 66.9 years), each decade of age was associated with an approximately 0.89-unit increase in coronary tortuosity score (P < .0001). Echocardiographic parameters were not significantly different between the two groups. Median follow-up duration was 4.4 years (95% CI, 3.8 to 5.2 years). The Kaplan-Meier 3-year SCAD recurrence rate was 9.4% (95% CI, 3.7% to 14.8%). There were no deaths. CONCLUSIONS: The majority of patients with SCAD had normal or near normal echocardiographic results, including global longitudinal strain, with no differences according to TCA. However, patients with SCAD with TCA were older, with a higher prevalence of FMD.


Assuntos
Anomalias dos Vasos Coronários , Vasos Coronários , Ecocardiografia , Displasia Fibromuscular , Doenças Vasculares , Doenças Vasculares/congênito , Humanos , Feminino , Masculino , Displasia Fibromuscular/complicações , Displasia Fibromuscular/diagnóstico , Displasia Fibromuscular/epidemiologia , Displasia Fibromuscular/fisiopatologia , Pessoa de Meia-Idade , Anomalias dos Vasos Coronários/epidemiologia , Anomalias dos Vasos Coronários/complicações , Anomalias dos Vasos Coronários/diagnóstico , Anomalias dos Vasos Coronários/fisiopatologia , Ecocardiografia/métodos , Estudos Prospectivos , Doenças Vasculares/epidemiologia , Doenças Vasculares/fisiopatologia , Doenças Vasculares/diagnóstico , Doenças Vasculares/complicações , Vasos Coronários/diagnóstico por imagem , Angiografia Coronária/métodos , Adulto , Deformação Longitudinal Global
2.
J Am Coll Cardiol ; 83(4): 530-545, 2024 Jan 30.
Artigo em Inglês | MEDLINE | ID: mdl-38267114

RESUMO

There has been little progress in reducing health care disparities since the 2003 landmark Institute of Medicine's report Unequal Treatment. Despite the higher burden of cardiovascular disease in underrepresented racial and ethnic groups, they have less access to cardiologists and cardiothoracic surgeons, and have higher rates of morbidity and mortality with cardiac surgical interventions. This review summarizes existing literature and highlights disparities in cardiovascular perioperative health care. We propose actionable solutions utilizing multidisciplinary perspectives from cardiology, cardiac surgery, cardiothoracic anesthesiology, critical care, medical ethics, and health disparity experts. Applying a health equity lens to multipronged interventions is necessary to eliminate the disparities in perioperative health care among patients undergoing cardiac surgery.


Assuntos
Anestesiologia , Procedimentos Cirúrgicos Cardíacos , Cardiologistas , Equidade em Saúde , Estados Unidos/epidemiologia , Humanos , Academias e Institutos
4.
Circulation ; 147(7): 597-610, 2023 02 14.
Artigo em Inglês | MEDLINE | ID: mdl-36780393

RESUMO

Menopausal hormone therapy (HT) was widely used in the past, but with the publication of seminal primary and secondary prevention trials that reported an excess cardiovascular risk with combined estrogen-progestin, HT use declined significantly. However, over the past 20 years, much has been learned about the relationship between the timing of HT use with respect to age and time since menopause, HT route of administration, and cardiovascular disease risk. Four leading medical societies recommend HT for the treatment of menopausal women with bothersome menopausal symptoms. In this context, this review, led by the American College of Cardiology Cardiolovascular Disease in Women Committee, along with leading gynecologists, women's health internists, and endocrinologists, aims to provide guidance on HT use, including the selection of patients and HT formulation with a focus on caring for symptomatic women with cardiovascular disease risk.


Assuntos
Doenças Cardiovasculares , Terapia de Reposição de Estrogênios , Feminino , Humanos , Terapia de Reposição de Estrogênios/efeitos adversos , Terapia de Reposição de Estrogênios/métodos , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/prevenção & controle , Doenças Cardiovasculares/induzido quimicamente , Menopausa , Terapia de Reposição Hormonal/efeitos adversos , Estrogênios/efeitos adversos
5.
J Am Heart Assoc ; 11(17): e024974, 2022 09 06.
Artigo em Inglês | MEDLINE | ID: mdl-36000432

RESUMO

Background Religiosity/spirituality is a major coping mechanism for African Americans, but no prior studies have analyzed its association with the American Heart Association Life's Simple 7 (LS7) indicators in this group. Methods and Results This cross-sectional study using Jackson Heart Study (JHS) data examined relationships between religiosity (religious attendance, private prayer, religious coping) and spirituality (theistic, nontheistic, total) with LS7 individual components (eg, physical activity, diet, smoking, blood pressure) and composite score among African Americans. Multivariable logistic regression assessed the odds of achieving intermediate/ideal (versus poor) LS7 levels adjusted for sociodemographic, behavioral, and biomedical factors. Among the 2967 participants (mean [SD] age=54.0 [12.3] years; 65.7% women), higher religious attendance was associated with increased likelihood (reported as odds ratio [95% CI]) of achieving intermediate/ideal levels of physical activity (1.16 [1.06-1.26]), diet (1.10 [1.01-1.20]), smoking (1.50 [1.34-1.68]), blood pressure (1.12 [1.01-1.24]), and LS7 composite score (1.15 [1.06-1.26]). Private prayer was associated with increased odds of achieving intermediate/ideal levels for diet (1.12 [1.03-1.22]) and smoking (1.24 [1.12-1.39]). Religious coping was associated with increased odds of achieving intermediate/ideal levels of physical activity (1.18 [1.08-1.28]), diet (1.10 [1.01-1.20]), smoking (1.32 [1.18-1.48]), and LS7 composite score (1.14 [1.04-1.24]). Total spirituality was associated with increased odds of achieving intermediate/ideal levels of physical activity (1.11 [1.02-1.21]) and smoking (1.36 [1.21-1.53]). Conclusions Higher levels of religiosity/spirituality were associated with intermediate/ideal cardiovascular health across multiple LS7 indicators. Reinforcement of religiosity/spirituality in lifestyle interventions may decrease overall cardiovascular disease risk among African Americans.


Assuntos
American Heart Association , Doenças Cardiovasculares , Negro ou Afro-Americano , Pressão Sanguínea , Doenças Cardiovasculares/epidemiologia , Estudos Transversais , Feminino , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Espiritualidade , Estados Unidos/epidemiologia
6.
Circ Res ; 130(4): 673-690, 2022 02 18.
Artigo em Inglês | MEDLINE | ID: mdl-35175849

RESUMO

Cardiovascular disease remains the leading cause of death in women. Given accumulating evidence on sex- and gender-based differences in cardiovascular disease development and outcomes, the need for more effective approaches to screening for risk factors and phenotypes in women is ever urgent. Public health surveillance and health care delivery systems now continuously generate massive amounts of data that could be leveraged to enable both screening of cardiovascular risk and implementation of tailored preventive interventions across a woman's life span. However, health care providers, clinical guidelines committees, and health policy experts are not yet sufficiently equipped to optimize the collection of data on women, use or interpret these data, or develop approaches to targeting interventions. Therefore, we provide a broad overview of the key opportunities for cardiovascular screening in women while highlighting the potential applications of artificial intelligence along with digital technologies and tools.


Assuntos
Inteligência Artificial/tendências , Doenças Cardiovasculares/diagnóstico , Doenças Cardiovasculares/fisiopatologia , Tecnologia Digital/tendências , Programas de Rastreamento/tendências , Doenças Cardiovasculares/epidemiologia , Tecnologia Digital/métodos , Feminino , Humanos , Longevidade/fisiologia , Programas de Rastreamento/métodos , Menopausa/fisiologia , Gravidez , Complicações Cardiovasculares na Gravidez/diagnóstico , Complicações Cardiovasculares na Gravidez/epidemiologia , Complicações Cardiovasculares na Gravidez/fisiopatologia
7.
Annu Rev Med ; 73: 339-354, 2022 01 27.
Artigo em Inglês | MEDLINE | ID: mdl-35084994

RESUMO

Spontaneous coronary artery dissection (SCAD) is an uncommon but increasingly recognized cause of acute myocardial infarction (MI) among young and middle-aged women and is an important cause of pregnancy-associated MI. Over 90% of SCAD patients are women. Compared to patients with MI caused by atherosclerosis, SCAD patients have fewer cardiovascular risk factors but more often have systemic arteriopathy, most commonly fibromuscular dysplasia. Angiographically, SCAD is characterized by the presence of an intramural hematoma with or without an intimal tear. Accurate recognition of characteristic findings on coronary angiography is critical, as there are important differences in the acute and long-term management of MI caused by SCAD versus atherosclerosis. Acutely, most SCAD patients should be managed conservatively, since percutaneous revascularization is associated with more complications and SCAD-affected vessels usually heal without intervention. Randomized clinical trials and other prospective evaluations are needed, especially to clarify optimal treatment and prevention strategies.


Assuntos
Anomalias dos Vasos Coronários , Doenças Vasculares , Angiografia Coronária/efeitos adversos , Anomalias dos Vasos Coronários/diagnóstico por imagem , Anomalias dos Vasos Coronários/terapia , Feminino , Humanos , Pessoa de Meia-Idade , Gravidez , Fatores de Risco , Doenças Vasculares/complicações , Doenças Vasculares/diagnóstico por imagem , Doenças Vasculares/terapia
8.
Mayo Clin Proc ; 97(1): 46-56, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34996565

RESUMO

OBJECTIVE: To assess cardiovascular disease (CVD) and CVD risk factors and their association with sociodemographic characteristics and health beliefs among African American (AA) adults in Minnesota. METHODS: A cross-sectional analysis was conducted of a community-based sample of AA adults enrolled in the Minnesota Heart Health Program Ask About Aspirin study from May 2019 to September 2019. Sociodemographic characteristics, health beliefs, and self-reported CVD and CVD risk factors were collected. Prevalence ratio (PR) estimates were calculated using Poisson regression modeling to assess the association between participants' characteristics and age- and sex-adjusted CVD risk factors. RESULTS: The sample included 644 individuals (64% [412] women) with a mean age of 61 years. Risk factors for CVD were common: hypertension (67% [434]), hyperlipidemia (47% [301]), diabetes (34% [219]), and current cigarette smoking (25% [163]); 19% (119) had CVD. Those with greater perceived CVD risk had a higher likelihood of prevalent hyperlipidemia (PR, 1.34; 95% CI, 1.14 to 1.57), diabetes (PR, 1.61; 95% CI, 1.30 to 1.98), and CVD (PR 1.61; 95% CI, 1.16 to 2.23) compared with those with lower perceived risk. Trust in health care provider was high (83% [535]) but was not associated with CVD or CVD risk factors. CONCLUSION: In this community sample of AAs in Minnesota, CVD risk factors were high, as was trust in health care providers. Those with greater CVD risk perceptions had higher CVD prevalence. Consideration of sociodemographic and psychosocial influences on CVD and CVD risk factors could inform development of effective cardiovascular health promotion interventions in the AA Minnesota community.


Assuntos
Doenças Cardiovasculares/epidemiologia , Fatores de Risco de Doenças Cardíacas , Negro ou Afro-Americano/psicologia , Negro ou Afro-Americano/estatística & dados numéricos , Idoso , Doenças Cardiovasculares/psicologia , Estudos Transversais , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Minnesota/epidemiologia , Prevalência , Autorrelato , Fatores Socioeconômicos
9.
JMIR Mhealth Uhealth ; 9(11): e28024, 2021 11 12.
Artigo em Inglês | MEDLINE | ID: mdl-34766917

RESUMO

BACKGROUND: African Americans continue to have suboptimal cardiovascular health (CVH) related to diet and physical activity (PA) behaviors compared with White people. Mobile health (mHealth) interventions are innovative platforms to improve diet and PA and have the potential to mitigate these disparities. However, these are understudied among African Americans. OBJECTIVE: This study aims to examine whether an mHealth lifestyle intervention is associated with improved diet and PA-related psychosocial factors in African Americans and whether these changes correlate with diet and PA behavioral change. METHODS: This study is a retrospective analysis evaluating changes in diet and PA-related self-regulation, social support, perceived barriers, and CVH behaviors (daily fruit and vegetable intake and moderate-intensity PA [MPA] per week) in 45 African American adults (mean age 48.7 years, SD 12.9 years; 33/45, 73% women) enrolled in the FAITH! (Fostering African American Improvement in Total Health) app pilot study. The intervention is a 10-week, behavioral theory-informed, community-based mHealth lifestyle intervention delivered through a mobile app platform. Participants engaged with 3 core FAITH! app features: multimedia education modules focused on CVH with self-assessments of CVH knowledge, self-monitoring of daily fruit and vegetable intake and PA, and a sharing board for social networking. Changes in self-reported diet and PA-related self-regulation, social support, perceived barriers, and CVH behaviors were assessed by electronic surveys collected at baseline and 28 weeks postintervention. Changes in diet and PA-related psychosocial factors from pre- to postintervention were assessed using paired 2-tailed t tests. The association of changes in diet and PA-related psychosocial variables with daily fruit and vegetable intake and MPA per week was assessed using Spearman correlation. Associations between baseline and 28-week postintervention changes in diet and PA-related psychosocial measures and CVH behaviors with covariates were assessed by multivariable linear regression. RESULTS: Participants reported improvements in 2 subscales of diet self-regulation (decrease fat and calorie intake, P=.01 and nutrition tracking, P<.001), one subscale of social support for healthy diet (friend discouragement, P=.001), perceived barriers to healthy diet (P<.001), and daily fruit and vegetable intake (P<.001). Improvements in diet self-regulation (increase fruit, vegetable, and grain intake, and nutrition tracking) and social support for healthy diet (friend encouragement) had moderate positive correlations with daily fruit and vegetable intake (r=0.46, r=0.34, and r=0.43, respectively). A moderate negative correlation was observed between perceived barriers to healthy diet and daily fruit and vegetable intake (r=-0.25). Participants reported increases in PA self-regulation (P<.001). Increase in social support subscales for PA (family and friend participation) had a moderate positive correlation with MPA per week (r=0.51 and r=0.61, respectively). CONCLUSIONS: Our findings highlight key diet and PA-related psychosocial factors to target in future mHealth lifestyle interventions aimed at promoting CVH in African Americans.


Assuntos
Aplicativos Móveis , Telemedicina , Adulto , Negro ou Afro-Americano , Dieta , Exercício Físico , Feminino , Humanos , Estilo de Vida , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Estudos Retrospectivos
10.
JAMA Netw Open ; 4(11): e2133199, 2021 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-34748008

RESUMO

Importance: Medical trainees frequently experience discrimination. Understanding their experiences is essential to improving learning environments. Objective: To characterize trainee experiences of discrimination and inclusion to inform graduate medical education (GME) policies. Design, Setting, and Participants: This qualitative study used an anonymous telephone interview technique to gather data from hematology and oncology fellows. All current trainees and recent graduates were eligible. Interviews were conducted anonymously with interviewer and participant in separate locations and recorded and transcribed. Data were analyzed in an iterative process into major themes using a general inductive analysis approach. Demographic information was obtained via anonymous survey. Data collection and analysis were conducted from July 2018 to November 2019. Main Outcomes and Measures: Emergent themes illustrating bias and inclusion in a GME program. Results: Among 34 fellows and recent graduates who were approached for this study, 20 consented and 17 were interviewed. Of those interviewed, 10 were men, and the median (range) age was 32 (29-53) years. The racial and ethnic distribution included 6 Asian individuals, 2 Black individuals, 3 Hispanic individuals, 2 multiracial individuals, and 4 White individuals. All fellows reported having experienced and/or witnessed discriminatory behavior. The themes elucidated were (1) foreign fellows perceived as outsiders, (2) US citizens feeling alien at home, (3) gender role-typing, (4) perception of futility of reporting, (5) diversity and inclusion, and (6) coping strategies. The majority of reported biases were from patients. Only 1 trainee reported any incidents. Reasons for not reporting were difficulty characterizing discrimination and doubt action would occur. Participants reported that diversity of cotrainees, involvement in committees, and open discussions promoted inclusivity. Conclusions and Relevance: In this study, reports of discriminatory behavior toward trainees were common. The anonymous hotline methodology cultivated a safe environment for candid discussions. These findings suggest that GME programs should assess their learning climate regarding bias and inclusivity anonymously and develop processes to support trainees.


Assuntos
Educação de Pós-Graduação em Medicina/estatística & dados numéricos , Bolsas de Estudo/estatística & dados numéricos , Hematologia/educação , Oncologia/educação , Grupos Minoritários/estatística & dados numéricos , Adulto , Diversidade Cultural , Feminino , Humanos , Masculino , Estados Unidos
12.
JAMA Netw Open ; 3(9): e2018170, 2020 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-32965500

RESUMO

Importance: Spontaneous coronary artery dissection (SCAD) is a notable cause of acute coronary syndrome in women of childbearing age. Objective: To test the hypothesis that pregnancy after SCAD is associated with recurrent SCAD. Design, Setting, and Participants: Three study designs were implemented: a case series of women with pregnancy after SCAD; a nested case-control study comparing patients with recurrent SCAD to matched controls without recurrent SCAD; and a cohort study. Women with SCAD who were of childbearing potential and enrolled into the Mayo Clinic SCAD Registry from August 30, 2011, to April 4, 2019, were included in the study. Patients with coronary dissections associated with iatrogenesis, trauma, or atherosclerosis were not enrolled. Exposures: Pregnancy after SCAD. Main Outcomes and Measures: The primary outcome was SCAD recurrence, defined as an acute coronary syndrome or cardiac arrest due to new SCAD. Other demographic measures collected included age, year of SCAD occurrence, and comorbidities. Results: The cohort included 636 women of childbearing potential. Twenty-three of those women had a total of 32 pregnancies after SCAD. The median (interquartile range) age of women with pregnancy after SCAD was 38 years (34-40 years), and 20 (87%) were White. In the nested case-control study, 92 cases of recurrent SCAD were matched to 158 controls. There was no significant difference in exposure to subsequent pregnancies in the women with recurrent SCAD as compared with matched controls (2 of 92 [2%] vs 13 of 158 [8%]; P = .06). In the overall cohort of 636 patients, recurrent SCAD was present in 122 patients with a Kaplan-Meier 5-year SCAD recurrence estimate of 14.8%. The Cox analysis showed no significant association between subsequent pregnancy and SCAD recurrence with a nonsignificant hazard ratio of 0.38 (95% CI, 0.09-1.6) when controlling for age at first SCAD, year of first SCAD, and fibromuscular dysplasia. Conclusions and Relevance: This study found that most women tolerated pregnancy and lactation after SCAD without evidence for increased risk of SCAD recurrence when compared with women with a history of SCAD who did not experience pregnancy. Although this study is reassuring and indicates complex contributors to SCAD recurrence, the results need to be interpreted prudently because of study selection bias and the small total number of women who became pregnant after SCAD. The notable hemodynamic changes that occur with pregnancy and severe presentation of pregnancy-associated SCAD are reasons for concern when considering pregnancy after SCAD.


Assuntos
Síndrome Coronariana Aguda/epidemiologia , Anomalias dos Vasos Coronários/complicações , Parada Cardíaca/epidemiologia , Complicações Cardiovasculares na Gravidez/epidemiologia , Doenças Vasculares/congênito , Síndrome Coronariana Aguda/etiologia , Adulto , Estudos de Casos e Controles , Feminino , Parada Cardíaca/etiologia , Humanos , Estimativa de Kaplan-Meier , Gravidez , Complicações Cardiovasculares na Gravidez/etiologia , Modelos de Riscos Proporcionais , Recidiva , Sistema de Registros , Doenças Vasculares/complicações
13.
J Am Coll Cardiol ; 76(8): 961-984, 2020 08 25.
Artigo em Inglês | MEDLINE | ID: mdl-32819471

RESUMO

Over the past decade, spontaneous coronary artery dissection (SCAD) has emerged as an important cause of myocardial infarction, particularly among younger women. The pace of knowledge acquisition has been rapid, but ongoing challenges include accurately diagnosing SCAD and improving outcomes. Many SCAD patients experience substantial post-SCAD symptoms, recurrent SCAD, and psychosocial distress. Considerable uncertainty remains about optimal management of associated conditions, risk stratification and prevention of complications, recommendations for physical activity, reproductive planning, and the role of genetic evaluations. This review provides a clinical update on the diagnosis and management of patients with SCAD, including pregnancy-associated SCAD and pregnancy after SCAD, and highlight high-priority knowledge gaps that must be addressed.


Assuntos
Anomalias dos Vasos Coronários , Gerenciamento Clínico , Infarto do Miocárdio , Complicações Cardiovasculares na Gravidez , Doenças Vasculares/congênito , Anomalias dos Vasos Coronários/complicações , Anomalias dos Vasos Coronários/fisiopatologia , Anomalias dos Vasos Coronários/psicologia , Anomalias dos Vasos Coronários/terapia , Feminino , Humanos , Infarto do Miocárdio/etiologia , Infarto do Miocárdio/prevenção & controle , Gravidez , Complicações Cardiovasculares na Gravidez/etiologia , Complicações Cardiovasculares na Gravidez/fisiopatologia , Complicações Cardiovasculares na Gravidez/psicologia , Complicações Cardiovasculares na Gravidez/terapia , Prognóstico , Medição de Risco , Fatores de Risco , Doenças Vasculares/complicações , Doenças Vasculares/fisiopatologia , Doenças Vasculares/psicologia , Doenças Vasculares/terapia
14.
Eur Heart J Acute Cardiovasc Care ; 9(1): 90-95, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30124050

RESUMO

OBJECTIVES: To investigate the role of endothelial function in patients with previous spontaneous coronary artery dissection. BACKGROUND: Mechanisms underlying spontaneous coronary artery dissection, including a possible contribution from endothelial dysfunction, remain poorly understood. METHODS: This was a single center, retrospective study of patients with a prior spontaneous coronary artery dissection episode who underwent invasive endothelial function testing in the cardiac catheterization laboratory for evaluation of recurrent chest pain. Coronary epicardial and microvascular responses to acetylcholine, adenosine, and nitroglycerine were assessed. Findings were compared to a reference group of normal controls (n=232). RESULTS: A total of 10 patients with prior angiographically confirmed spontaneous coronary artery dissection were referred for coronary endothelial function testing. The median coronary flow reserve was 2.8 (interquartile range (IQR) 2.3, 3.6). The median change in coronary diameter with acetylcholine was -0.9% (IQR -23.9, 4.2). The median increase in peak coronary blood flow following acetylcholine administration was 91.4% (IQR 9.1, 105.7), which was similar to the response observed in a reference group of patients (median age 51 years, 96% women) from our laboratory with normal microvascular responses to acetylcholine: 107.4% (IQR 75.5, 165.7; P=0.20). Four patients (40%) had an abnormal microvascular response to acetylcholine, with less than a 50% increase in coronary blood flow, and all but one patient had left anterior descending artery or multivessel spontaneous coronary artery dissection. CONCLUSION: Coronary epicardial and microvascular vasomotor dysfunction is not a predominant feature of spontaneous coronary artery dissection. Endothelial dysfunction is not implicated as the principal underlying mechanism.


Assuntos
Circulação Coronária/fisiologia , Anomalias dos Vasos Coronários/fisiopatologia , Vasos Coronários/fisiopatologia , Células Endoteliais/fisiologia , Doenças Vasculares/congênito , Acetilcolina/administração & dosagem , Acetilcolina/farmacologia , Adenosina/administração & dosagem , Adenosina/farmacologia , Adulto , Idoso , Velocidade do Fluxo Sanguíneo/fisiologia , Estudos de Casos e Controles , Dor no Peito/diagnóstico , Dor no Peito/etiologia , Angiografia Coronária/métodos , Anomalias dos Vasos Coronários/diagnóstico , Feminino , Humanos , Masculino , Microcirculação/efeitos dos fármacos , Microcirculação/fisiologia , Pessoa de Meia-Idade , Nitroglicerina/administração & dosagem , Nitroglicerina/farmacologia , Estudos Retrospectivos , Doenças Vasculares/diagnóstico , Doenças Vasculares/fisiopatologia
16.
J Am Coll Cardiol ; 73(1): 58-66, 2019 01 08.
Artigo em Inglês | MEDLINE | ID: mdl-30621952

RESUMO

BACKGROUND: Spontaneous coronary artery dissection (SCAD) is an increasingly recognized cause of acute coronary syndromes (ACS) afflicting predominantly younger to middle-aged women. Observational studies have reported a high prevalence of extracoronary vascular anomalies, especially fibromuscular dysplasia (FMD) and a low prevalence of coincidental cases of atherosclerosis. PHACTR1/EDN1 is a genetic risk locus for several vascular diseases, including FMD and coronary artery disease, with the putative causal noncoding variant at the rs9349379 locus acting as a potential enhancer for the endothelin-1 (EDN1) gene. OBJECTIVES: This study sought to test the association between the rs9349379 genotype and SCAD. METHODS: Results from case control studies from France, United Kingdom, United States, and Australia were analyzed to test the association with SCAD risk, including age at first event, pregnancy-associated SCAD (P-SCAD), and recurrent SCAD. RESULTS: The previously reported risk allele for FMD (rs9349379-A) was associated with a higher risk of SCAD in all studies. In a meta-analysis of 1,055 SCAD patients and 7,190 controls, the odds ratio (OR) was 1.67 (95% confidence interval [CI]: 1.50 to 1.86) per copy of rs9349379-A. In a subset of 491 SCAD patients, the OR estimate was found to be higher for the association with SCAD in patients without FMD (OR: 1.89; 95% CI: 1.53 to 2.33) than in SCAD cases with FMD (OR: 1.60; 95% CI: 1.28 to 1.99). There was no effect of genotype on age at first event, P-SCAD, or recurrence. CONCLUSIONS: The first genetic risk factor for SCAD was identified in the largest study conducted to date for this condition. This genetic link may contribute to the clinical overlap between SCAD and FMD.


Assuntos
Anomalias dos Vasos Coronários/epidemiologia , Anomalias dos Vasos Coronários/genética , Endotelina-1/genética , Displasia Fibromuscular/complicações , Loci Gênicos/genética , Proteínas dos Microfilamentos/genética , Doenças Vasculares/congênito , Adulto , Idoso , Austrália , Estudos de Casos e Controles , Anomalias dos Vasos Coronários/complicações , Feminino , Displasia Fibromuscular/genética , França , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Reino Unido , Estados Unidos , Doenças Vasculares/complicações , Doenças Vasculares/epidemiologia , Doenças Vasculares/genética
17.
Circulation ; 137(19): e523-e557, 2018 05 08.
Artigo em Inglês | MEDLINE | ID: mdl-29472380

RESUMO

Spontaneous coronary artery dissection (SCAD) has emerged as an important cause of acute coronary syndrome, myocardial infarction, and sudden death, particularly among young women and individuals with few conventional atherosclerotic risk factors. Patient-initiated research has spurred increased awareness of SCAD, and improved diagnostic capabilities and findings from large case series have led to changes in approaches to initial and long-term management and increasing evidence that SCAD not only is more common than previously believed but also must be evaluated and treated differently from atherosclerotic myocardial infarction. High rates of recurrent SCAD; its association with female sex, pregnancy, and physical and emotional stress triggers; and concurrent systemic arteriopathies, particularly fibromuscular dysplasia, highlight the differences in clinical characteristics of SCAD compared with atherosclerotic disease. Recent insights into the causes of, clinical course of, treatment options for, outcomes of, and associated conditions of SCAD and the many persistent knowledge gaps are presented.


Assuntos
American Heart Association , Anomalias dos Vasos Coronários , Doenças Vasculares/congênito , Técnicas de Imagem Cardíaca/normas , Fármacos Cardiovasculares/uso terapêutico , Consenso , Tratamento Conservador/normas , Ponte de Artéria Coronária/normas , Anomalias dos Vasos Coronários/diagnóstico por imagem , Anomalias dos Vasos Coronários/mortalidade , Anomalias dos Vasos Coronários/terapia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Intervenção Coronária Percutânea/normas , Valor Preditivo dos Testes , Gravidez , Prevalência , Medição de Risco , Fatores de Risco , Resultado do Tratamento , Estados Unidos , Doenças Vasculares/diagnóstico por imagem , Doenças Vasculares/mortalidade , Doenças Vasculares/terapia
18.
J Am Coll Cardiol ; 70(4): 426-435, 2017 Jul 25.
Artigo em Inglês | MEDLINE | ID: mdl-28728686

RESUMO

BACKGROUND: Spontaneous coronary artery dissection (SCAD) is the most common cause of pregnancy-associated myocardial infarction and remains poorly characterized. OBJECTIVES: This study sought to assess presentation, clinical factors, and outcomes of pregnancy-associated spontaneous coronary artery dissection (P-SCAD) compared with spontaneous coronary artery dissection not associated with pregnancy (NP-SCAD). METHODS: A Mayo Clinic registry was established in 2010 to include comprehensive retrospective and prospective SCAD data. Records were reviewed to identify women who were pregnant or ≤12 weeks postpartum at time of SCAD. Complete records were available for 323 women; 54 women met criteria for P-SCAD (4 during pregnancy) and they were compared with 269 women with NP-SCAD. RESULTS: Most events occurred within the first month postpartum (35 of 50). Compared with NP-SCAD, P-SCAD patients more frequently presented with ST-segment elevation myocardial infarction (57% vs. 36%; p = 0.009), left main or multivessel SCAD (24% vs. 5%; p < 0.0001; and 33% vs. 14%; p = 0.0027, respectively), and left ventricular function ≤35% (26% vs. 10%; p = 0.0071). Among women with imaging of other vascular territories, P-SCAD was less likely with a diagnosis of fibromuscular dysplasia and extracoronary vascular abnormalities (42% vs. 64%; p = 0.047; and 46% vs. 77%; p = 0.0032, respectively). Compared with U.S. birth data, women with P-SCAD were more often multiparous (p = 0.0167), had a history of infertility therapies (p = 0.0004), and had pre-eclampsia (p = 0.001). On long-term follow-up (median 2.3 years) recurrent SCAD occurred in 51 patients, with no difference in the Kaplan Meier 5-year recurrence rates (10% vs. 23%; p = 0.18). CONCLUSIONS: P-SCAD patients had more acute presentations and high-risk features than women with NP-SCAD did. The highest frequency of P-SCAD occurred during the first postpartum month and P-SCAD patients less often had extracoronary vascular abnormalities. Hormonal, hemodynamic variations, and yet-undefined mechanisms might be significant contributors to P-SCAD. (The "Virtual" Multicenter Spontaneous Coronary Artery Dissection [SCAD] Registry [SCAD]; NCT01429727; Genetic Investigations in Spontaneous Coronary Artery Dissection [SCAD]; NCT01427179).


Assuntos
Anomalias dos Vasos Coronários/etiologia , Complicações Cardiovasculares na Gravidez , Doenças Vasculares/congênito , Adulto , Idoso , Angiografia Coronária , Anomalias dos Vasos Coronários/diagnóstico , Anomalias dos Vasos Coronários/epidemiologia , Feminino , Seguimentos , Humanos , Incidência , Recém-Nascido , Pessoa de Meia-Idade , Período Pós-Parto , Gravidez , Estudos Retrospectivos , Fatores de Tempo , Estados Unidos/epidemiologia , Doenças Vasculares/diagnóstico , Doenças Vasculares/epidemiologia , Doenças Vasculares/etiologia , Adulto Jovem
19.
J Racial Ethn Health Disparities ; 4(1): 19-24, 2017 02.
Artigo em Inglês | MEDLINE | ID: mdl-27294766

RESUMO

OBJECTIVE: African American women bear a disproportionate burden of cardiovascular disease (CVD) and cancer. The purpose of this study was to identify prevalent health concerns among African American women who are members of The Links, Incorporated (Links), a large national service organization with health programming for communities of color. METHODS: Survey data (n = 391) were collected during the 2012 Links National Assembly. Twenty-six health issues were presented within five groups: cancer, CVD, pulmonary disease, chronic conditions, and behavioral health. For each issue, women indicated if it was a concern for "you/your family" or "the African American community" via check-boxes. Differences in the proportions for "you/your family" and "the African American community" were evaluated using the McNemar test. RESULTS: Hypertension was the most frequently endorsed concern for you/your family (79 %); 73 % indicated this was a concern for the African American community. Sickle cell anemia was the most frequently endorsed concern for the African American community (77 %). Melanoma was the least endorsed health issue overall (15 % you/your family, 55 % community). Breast was the most frequently endorsed cancer concern, while lung was among the least. For 23 out of 26 health issues, the proportion concerned was greater for the "African American community" than for "you/your family" (all p < 0.05). CONCLUSION: CVD and breast cancer were salient concerns; both are topics for which national awareness campaigns and Links health programming exist. Comparatively lower concern was observed for melanoma, a cancer with known survival disparities, and for lung cancer, a leading cause of death in women.


Assuntos
Atitude Frente a Saúde/etnologia , Negro ou Afro-Americano/psicologia , Organizações/organização & administração , Voluntários , Adulto , Negro ou Afro-Americano/estatística & dados numéricos , Idoso , Idoso de 80 Anos ou mais , Feminino , Disparidades nos Níveis de Saúde , Inquéritos Epidemiológicos , Humanos , Pessoa de Meia-Idade , Prevalência , Estados Unidos/epidemiologia , Adulto Jovem
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