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Microvascular disease of the heart

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https://www.readbyqxmd.com/read/28325567/microvascular-surgery-in-the-congenital-cardiac-patient-a-case-series-exploring-feasibility-and-practical-applications
#1
John A LoGiudice, Karri Adamson, Nancy Ghanayem, Ronald K Woods, Michael E Mitchell
BACKGROUND: Pediatric congenital heart disease patients are at risk for vascular injuries during surgical procedures or when the arterial system is accessed for monitoring or diagnostic studies. Our treatment of emergent situations in this patient population using microvascular techniques shows the feasibility of such techniques. METHODS: A retrospective chart review of patients aged 0-18 years with congenital heart disease identified six patients who underwent microvascular surgery by the senior surgeon from June 2007 to May 2015...
February 17, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28319002/hba1c-in-relation-to-incident-diabetes-and-diabetes-related-complications-in-non-diabetic-adults-at-baseline
#2
Patricia Anne Metcalf, Cam Kyle, Tim Kenealy, Rod T Jackson
AIMS: We compared the utility of glycated hemoglobin (HbA1c) and oral glucose tolerance (oGTT) in non-diabetic patients for identifying incident diabetes; all-cause mortality; cardiovascular disease (CVD) mortality; CVD, coronary heart disease (CHD), and ischemic stroke events; and diabetes microvascular complications. METHODS: Data from a New Zealand community setting were prospectively linked to hospitalization, mortality, pharmaceutical and laboratory test results data...
February 21, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28289007/ischemia-and-no-obstructive-coronary-artery-disease-inoca-developing-evidence-based-therapies-and-research-agenda-for-the-next-decade
#3
REVIEW
C Noel Bairey Merz, Carl J Pepine, Mary Norine Walsh, Jerome L Fleg
The Cardiovascular Disease in Women Committee of the American College of Cardiology, in conjunction with interested parties (from the National Heart, Lung, and Blood Institute, American Heart Association, and European Society of Cardiology), convened a working group to develop a consensus on the syndrome of myocardial ischemia with no obstructive coronary arteries. In general, these patients have elevated risk for a cardiovascular event (including acute coronary syndrome, heart failure hospitalization, stroke, and repeat cardiovascular procedures) compared with reference subjects and appear to be at higher risk for development of heart failure with preserved ejection fraction...
March 14, 2017: Circulation
https://www.readbyqxmd.com/read/28275071/relations-of-metabolically-healthy-and-unhealthy-obesity-to-digital-vascular-function-in-three-community-based-cohorts-a-meta-analysis
#4
REVIEW
Luisa C C Brant, Na Wang, Francisco M Ojeda, Michael LaValley, Sandhi M Barreto, Emelia J Benjamin, Gary F Mitchell, Ramachandran S Vasan, Joseph N Palmisano, Thomas Münzel, Stefan Blankenberg, Philipp S Wild, Tanja Zeller, Antonio L P Ribeiro, Renate B Schnabel, Naomi M Hamburg
BACKGROUND: Microvascular dysfunction is a marker of early vascular disease that predicts cardiovascular events. Whether metabolically healthy obese individuals have impaired microvascular function remains unclear. The aim of this study was to evaluate the relation of obesity phenotypes stratified by metabolic status to microvascular function. METHODS AND RESULTS: We meta-analyzed aggregate data from 3 large cohorts (Brazilian Longitudinal Study of Adult Health, the Framingham Heart Study, and the Gutenberg Heart Study; n=16 830 participants, age range 19-90, 51...
March 8, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28272770/sex-differences-in-vascular-dysfunction-and-cardiovascular-outcomes-the-cardiac-endothelial-function-and-arterial-stiffness-in-esrd-ceres-study
#5
Isabella Guajardo, Amrita Ayer, Alexander D Johnson, Peter Ganz, Claire Mills, Catherine Donovan, Rebecca Scherzer, Sanjiv J Shah, Carmen A Peralta, Ruth F Dubin
INTRODUCTION: Recent studies suggest that women with end-stage renal disease (ESRD) may have higher rates of mortality than men, but it is unknown whether sex differences in vascular function explain this disparity. The cardiac, endothelial function, and arterial stiffness in ESRD (CERES) study is an ongoing, prospective observational study designed to investigate vascular function, myocardial injury, and cardiovascular outcomes in ESRD. METHODS: Among 200 CERES participants (34% women), we evaluated arterial wave reflections as augmentation index normalized to a heart rate of 75 (AIx75), arterial stiffness as pulse wave velocity, and macro- and microvascular endothelial dysfunction as flow-mediated dilation and velocity time integral (VTI)...
March 8, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28268404/a-temperature-controlled-glove-with-non-invasive-arterial-pulse-sensing-for-active-neuro-vascular-assessment
#6
Andrew M Carek, Omer T Inan
A non-invasive, active neuro-vascular assessment system was developed using a modified temperature-controlled glove and feedback techniques. The glove incorporates local heating and cooling of the hand using multi-point skin temperature measurements as feedback, and thereby induces local and central mechanisms involved in thermoregulation. Electrocardiogram (ECG), photoplethysmogram (PPG) and non-invasive finger-cuff based blood pressure (BP) measurements were used to monitor electrophysiology and hemodynamic changes in response to temperature modulation...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28258906/association-between-subclinical-left-ventricular-systolic-dysfunction-and-glycemic-control-in-asymptomatic-type-2-diabetic-patients-with-preserved-left-ventricular-function
#7
Giacomo Zoppini, Corinna Bergamini, Stefano Bonapace, Andrea Rossi, Maddalena Trombetta, Alessandro Mantovani, Anna Toffalini, Laura Lanzoni, Lorenzo Bertolini, Luciano Zenari, Enzo Bonora, Giovanni Targher
BACKGROUND: Type 2 diabetes is strongly associated with the occurrence of cardiovascular diseases, especially heart failure. Some studies have suggested that subclinical systolic dysfunction as assessed by tissue Doppler imaging (TDI) is already present in uncomplicated diabetic patients with normal left ventricular ejection fraction (LVEF). Considering the importance of this aspect, the aim of this cross-sectional study was to examine the relationship between glycated hemoglobin and mean s' wave velocity (a reliable measure of early LV systolic dysfunction) in a cohort of type 2 diabetic outpatients with preserved LVEF and without ischemic heart disease...
February 13, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28226574/a-temperature-controlled-glove-with-non-invasive-arterial-pulse-sensing-for-active-neuro-vascular-assessment
#8
Andrew M Carek, Omer T Inan, Andrew M Carek, Omer T Inan, Andrew M Carek, Omer T Inan
A non-invasive, active neuro-vascular assessment system was developed using a modified temperature-controlled glove and feedback techniques. The glove incorporates local heating and cooling of the hand using multi-point skin temperature measurements as feedback, and thereby induces local and central mechanisms involved in thermoregulation. Electrocardiogram (ECG), photoplethysmogram (PPG) and non-invasive finger-cuff based blood pressure (BP) measurements were used to monitor electrophysiology and hemodynamic changes in response to temperature modulation...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28221677/cardiovascular-disease-in-relation-to-placental-abruption-a%C3%A2-population-based-cohort-study-from-denmark
#9
Cande V Ananth, Anne Vinkel Hansen, Michelle A Williams, Anne-Marie Nybo Andersen
BACKGROUND: Cardiovascular (CVD) complications stemming from vascular dysfunction have been widely explored in the setting of preeclampsia. However, the impact of abruption, a strong indicator of microvascular disturbance, on the risk of CVD mortality and morbidity remains poorly characterised. METHODS: We designed a cohort analysis of 828 289 women who delivered singletons in Denmark between 1978 and 2010. We linked the National Patient Registry and the Registry of Causes of Death to the Danish Birth Registry to ascertain CVD events...
February 21, 2017: Paediatric and Perinatal Epidemiology
https://www.readbyqxmd.com/read/28214792/suppression-of-tumorigenicity-2-in-heart-failure-with-preserved-ejection-fraction
#10
Omar F AbouEzzeddine, Paul M McKie, Shannon M Dunlay, Susanna R Stevens, G Michael Felker, Barry A Borlaug, Horng H Chen, Russell P Tracy, Eugene Braunwald, Margaret M Redfield
BACKGROUND: Soluble suppression of tumorigenicity 2 (sST2) receptor is a biomarker that is elevated in certain systemic inflammatory diseases. Comorbidity-driven microvascular inflammation is postulated to play a key role in heart failure with preserved ejection fraction (HFpEF) pathophysiology, but data on how sST2 relates to clinical characteristics or inflammatory conditions or biomarkers in HFpEF are limited. We sought to determine circulating levels and clinical correlates of sST2 in HFpEF...
February 18, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28210939/deep-phenotyping-of-systemic-arterial-hemodynamics-in-hfpef-part-1-physiologic-and-technical-considerations
#11
REVIEW
Julio A Chirinos
A better understanding of the pathophysiology of heart failure with a preserved left ventricular ejection fraction (HFpEF) is important. Detailed phenotyping of pulsatile hemodynamics has provided important insights into the pathophysiology of left ventricular remodeling and fibrosis, diastolic dysfunction, microvascular disease, and impaired oxygen delivery to peripheral skeletal muscle, all of which contribute to exercise intolerance, the cardinal feature of HFpEF. Furthermore, arterial pulsatile hemodynamic mechanisms likely contribute to the frequent presence of comorbidities, such as renal failure and dementia, in this population...
February 16, 2017: Journal of Cardiovascular Translational Research
https://www.readbyqxmd.com/read/28207868/acetylcholine-versus-cold-pressor-testing-for-evaluation-of-coronary-endothelial-function
#12
Ahmed AlBadri, Janet Wei, Puja K Mehta, Sofy Landes, John W Petersen, R David Anderson, Bruce Samuels, Babak Azarbal, Eileen M Handberg, Quanlin Li, Margo Minissian, Chrisandra Shufelt, Carl J Pepine, C Noel Bairey Merz
BACKGROUND: Assessment of coronary endothelial function with intracoronary acetylcholine (IC-Ach) provides diagnostic and prognostic data in patients with suspected coronary microvascular dysfunction (CMD), but is often not feasible due in part to the time and expertise needed for pharmacologic mixing. Cold pressor testing (CPT) is a simple and safe stimulus useful for either invasive or non-invasive endothelial function testing and myocardial perfusion imaging but has not been specifically evaluated among symptomatic women with signs of ischemic heart disease (IHD) who have no obstructive coronary artery disease (CAD)...
2017: PloS One
https://www.readbyqxmd.com/read/28138813/noninvasive-pet-quantitative-myocardial-blood-flow-with-regadenoson-for-assessing-cardiac-allograft-vasculopathy-in-orthotopic-heart-transplantation-patients
#13
Miguel Hernandez Pampaloni, Uttam M Shrestha, Maria Sciammarella, Youngho Seo, Grant T Gullberg, Elias H Botvinick
BACKGROUND: Risk stratification and early detection of cardiac allograft vasculopathy (CAV) is essential in orthotopic heart transplantation (OHT) patients. This study assesses the changes in myocardial blood flow (MBF) noninvasively in OHT patients using quantitative cardiac PET with regadenoson. METHODS: Twelve patients (Group 1) (8 males, 4 females, mean age 55 ± 7 years) with no history of post OHT myocardial ischemia were enrolled 5.4 ± 2.0 years after OHT...
January 30, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28132957/risk-of-heart-failure-with-preserved-ejection-fraction-in-older-women-after-contemporary-radiotherapy-for-breast-cancer
#14
Hirofumi Saiki, Ivy A Petersen, Christopher G Scott, Kent R Bailey, Shannon M Dunlay, Randi R Finley, Kathryn J Ruddy, Elizabeth Yan, Margaret M Redfield
BACKGROUND: -Cardiomyocytes are resistant to radiation. However, cardiac radiation exposure causes coronary microvascular endothelial inflammation, a perturbation implicated in the pathogenesis of heart failure (HF) and particularly, HF with preserved ejection fraction (HFpEF). Radiotherapy for breast cancer results in variable cardiac radiation exposure and may increase the risk of HF. METHODS: -We conducted a population-based case-control study of incident HF in 170 female residents of Olmsted County, Minnesota (59 cases and 111 controls) who underwent contemporary (1998-2013) radiotherapy for breast cancer utilizing computed tomography-assisted radiotherapy planning...
January 29, 2017: Circulation
https://www.readbyqxmd.com/read/28130064/cardiovascular-consequences-of-metabolic-syndrome
#15
REVIEW
Johnathan D Tune, Adam G Goodwill, Daniel J Sassoon, Kieren J Mather
The metabolic syndrome (MetS) is defined as the concurrence of obesity-associated cardiovascular risk factors including abdominal obesity, impaired glucose tolerance, hypertriglyceridemia, decreased HDL cholesterol, and/or hypertension. Earlier conceptualizations of the MetS focused on insulin resistance as a core feature, and it is clearly coincident with the above list of features. Each component of the MetS is an independent risk factor for cardiovascular disease and the combination of these risk factors elevates rates and severity of cardiovascular disease, related to a spectrum of cardiovascular conditions including microvascular dysfunction, coronary atherosclerosis and calcification, cardiac dysfunction, myocardial infarction, and heart failure...
January 9, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/28120034/prognostic-impact-of-disseminated-intravascular-coagulation-score-in-acute-heart-failure-patients-referred-to-a-cardiac-intensive-care-unit-a-retrospective-cohort-study
#16
Ryosuke Itani, Yuichiro Minami, Shintaro Haruki, Erisa Watanabe, Nobuhisa Hagiwara
Thrombosis within the vascular system in relation to inflammation and stasis is potentially associated with poor prognosis in patients with heart failure. The aim of this study was to clarify the association between disseminated intravascular coagulation (DIC) score, a scoring system for microvascular thrombosis and multiple organ dysfunction, and outcome in hospitalized patients with acute heart failure (AHF). We retrospectively evaluated 160 AHF patients referred to a cardiac intensive care unit who had their DIC score measured according to the Japanese Association for Acute Medicine (JAAM) DIC scoring system on admission...
January 24, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28109295/a-randomised-active-and-placebo-controlled-three-period-crossover-trial-to-investigate-short-term-effects-of-the-dipeptidyl-peptidase-4-inhibitor-linagliptin-on-macro-and-microvascular-endothelial-function-in-type-2-diabetes
#17
Thomas Jax, Alin Stirban, Arne Terjung, Habib Esmaeili, Andreas Berk, Sandra Thiemann, Robert Chilton, Maximilian von Eynatten, Nikolaus Marx
BACKGROUND: Studies of dipeptidyl peptidase (DPP)-4 inhibitors report heterogeneous effects on endothelial function in patients with type 2 diabetes (T2D). This study assessed the effects of the DPP-4 inhibitor linagliptin versus the sulphonylurea glimepiride and placebo on measures of macro- and microvascular endothelial function in patients with T2D who represented a primary cardiovascular disease prevention population. METHODS: This crossover study randomised T2D patients (n = 42) with glycated haemoglobin (HbA1c) ≤7...
January 21, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28088910/sodium-glucose-cotransporter-2-inhibitors-sglt2i-their-role-in-cardiometabolic-risk-management
#18
Niki Katsiki, Dimitri P Mikhailidis, Michael J Theodorakis
BACKGROUND: Sodium-glucose cotransporter 2 inhibitors (SGLT2i) are a novel category of oral antidiabetic drugs that inhibit renal glucose reabsorption and increase renal glucose excretion, thus lowering plasma glucose levels. This unique mechanism of SGLT2i action is insulin independent, thus improving glycemic control without promoting hypoglycemia in the absence of exogenously administered insulin. METHODS: The present narrative review addresses the putative associations between SGLT2i and several cardiovascular (CV) and microvascular risk factors, as well as their effects on cardiac and renal function...
January 13, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28024133/ranolazine-in-treatment-of-stable-angina-in-woman-with-atrial-fibrillation-and-intermittent-left-bundle-branch-block-a-case-report
#19
REVIEW
Natalia Yuriivna Osovska, Natalia Vitaliivna Kuzminova
Stable angina is the most frequent manifestation of ischemic heart disease (IHD) in women as compared to men (65% versus 37%). IHD in women has more favorable clinical course because myocardial infarction develops twice as rare as in men. Coronary angiography of angina patients demonstrates normal coronary arteries more frequently in women than in men. Microvascular angina (MVA) is found to be a rather common form of stable IHD as that particular diagnosis is made later in 20-30% of patients who previously underwent coronary angiography...
December 22, 2016: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/27956408/microvascular-function-contributes-to-the-relation-between-aortic-stiffness-and-cardiovascular-events-the-framingham-heart-study
#20
Leroy L Cooper, Joseph N Palmisano, Emelia J Benjamin, Martin G Larson, Ramachandran S Vasan, Gary F Mitchell, Naomi M Hamburg
BACKGROUND: Arterial dysfunction contributes to cardiovascular disease (CVD) progression and clinical events. Inter-relations of aortic stiffness and vasodilator function with incident CVD remain incompletely studied. METHODS AND RESULTS: We used proportional hazards models to relate individual measures of vascular function to incident CVD in 4547 participants (mean age, 51±11 years; 54% women) in 2 generations of Framingham Heart Study participants. During follow-up (0...
December 2016: Circulation. Cardiovascular Imaging
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