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result(s) for
"Mehran, Roxana"
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Contrast-Associated Acute Kidney Injury
by
Weisbord, Steven D
,
Dangas, George D
,
Mehran, Roxana
in
Acute Kidney Injury - chemically induced
,
Acute Kidney Injury - physiopathology
,
Acute Kidney Injury - prevention & control
2019
This review summarizes the pathophysiology and definition of contrast-associated acute kidney injury, as well as risk stratification. The authors discuss controversies regarding the incidence of this condition and highlight studies providing the evidence for preventive care.
Journal Article
Genetic Risk, Adherence to a Healthy Lifestyle, and Coronary Disease
by
Drake, Isabel
,
Bick, Alexander G
,
Orho-Melander, Marju
in
Aged
,
Arteriosclerosis
,
Calcification (ectopic)
2016
Using a polygenic score of DNA sequence polymorphisms, the authors of this study quantified genetic risk and assessed four healthy lifestyle factors. Among participants at high genetic risk, a healthy lifestyle was associated with a reduced risk of coronary disease.
Both genetic and lifestyle factors are key drivers of coronary artery disease, a complex disorder that is the leading cause of death worldwide.
1
A familial pattern in the risk of coronary artery disease was first described in 1938 and was subsequently confirmed in large studies involving twins and prospective cohorts.
2
–
6
Since 2007, genomewide association analyses have identified more than 50 independent loci associated with the risk of coronary artery disease.
7
–
15
These risk alleles, when aggregated into a polygenic risk score, are predictive of incident coronary events and provide a continuous and quantitative measure of genetic susceptibility.
16
–
24
Much . . .
Journal Article
Non-atherosclerotic causes of acute coronary syndromes
by
Gersh, Bernard J
,
Waterbury, Thomas M
,
Tarantini Giuseppe
in
Acute coronary syndromes
,
Atherosclerosis
,
Cardiomyopathy
2020
Atherosclerosis and plaque disruption have a central pathological role in the majority of patients who present with an acute coronary syndrome (ACS), but non-atherosclerotic processes are also important contributors to a substantial number of ACS events and require different diagnostic and therapeutic strategies. In the absence of obstructive coronary artery disease, intravascular imaging techniques might be needed to delineate the underlying aetiology, together with a high index of suspicion for other important causes of ACS. In this Review, we discuss five non-atherosclerotic causes of ACS, including spontaneous coronary artery dissection, coronary artery embolism, vasospasm, myocardial bridging and stress-induced cardiomyopathy (Takotsubo syndrome). Important diagnostic findings, management strategies and prognostic data for these non-atherosclerotic mechanisms of ACS are reviewed.Non-atherosclerotic processes are important contributors to a substantial number of acute coronary syndrome events. In this Review, Gulati and colleagues discuss the diagnosis, management and prognosis of patients with spontaneous coronary artery dissection, coronary artery embolism, vasospasm, myocardial bridging or stress-induced cardiomyopathy (Takotsubo syndrome).
Journal Article
The Lancet women and cardiovascular disease Commission: reducing the global burden by 2030
by
Lam, Carolyn S P
,
Maas, Angela H E M
,
Kunadian, Vijay
in
Awareness
,
Cardiovascular disease
,
Cardiovascular diseases
2021
Cardiovascular disease is the leading cause of death in women. Decades of grassroots campaigns have helped to raise awareness about the impact of cardiovascular disease in women, and positive changes affecting women and their health have gained momentum. Despite these efforts, there has been stagnation in the overall reduction of cardiovascular disease burden for women in the past decade. Cardiovascular disease in women remains understudied, under-recognised, underdiagnosed, and undertreated. This Commission summarises existing evidence and identifies knowledge gaps in research, prevention, treatment, and access to care for women. Recommendations from an international team of experts and leaders in the field have been generated with a clear focus to reduce the global burden of cardiovascular disease in women by 2030. This Commission represents the first effort of its kind to connect stakeholders, to ignite global awareness of sex-related and gender-related disparities in cardiovascular disease, and to provide a springboard for future research.
Journal Article
Clonal Hematopoiesis and Risk of Atherosclerotic Cardiovascular Disease
2017
The development of clonal hematopoiesis with increasing age was associated with nearly a doubling in the risk of coronary heart disease, along with an increase in coronary calcifications, possibly due to heightened production of inflammatory markers.
Journal Article
Stable coronary artery disease: revascularisation and invasive strategies
by
Windecker, Stephan
,
Giustino, Gennaro
,
Mehran, Roxana
in
Angina pectoris
,
Cardiac Imaging Techniques - methods
,
Cardiology
2015
Stable coronary artery disease is the most common clinical manifestation of ischaemic heart disease and a leading cause of mortality worldwide. Myocardial revascularisation is a mainstay in the treatment of symptomatic patients or those with ischaemia-producing coronary lesions, and reduces ischaemia to a greater extent than medical treatment. Documentation of ischaemia and plaque burden is fundamental in the risk stratification of patients with stable coronary artery disease, and several invasive and non-invasive techniques are available (eg, fractional flow reserve or intravascular ultrasound) or being validated (eg, instantaneous wave-free ratio and optical coherence tomography). The use of new-generation drug-eluting stents and arterial conduits greatly improve clinical outcome in patients undergoing percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG). PCI is feasible, safe, and effective in many patients with stable coronary artery disease who remain symptomatic despite medical treatment. In patients with multivessel and left main coronary artery disease, the decision between PCI or CABG is guided by the local Heart Team (team of different cardiovascular specialists, including non-invasive and invasive cardiologists, and cardiac surgeons), who carefully judge the possible benefits and risks inherent to PCI and CABG. In specific subsets, such as patients with diabetes and advanced, multivessel coronary artery disease, CABG remains the standard of care in view of improved protection against recurrent ischaemic adverse events.
Journal Article
Contemporary coronary artery bypass graft surgery and subsequent percutaneous revascularization
by
Tam, Derrick Y
,
Henriques, José P
,
Dangas, George D
in
Angioplasty
,
Cardiovascular disease
,
Coronary vessels
2022
Patients who have undergone coronary artery bypass graft (CABG) surgery are susceptible to bypass graft failure and progression of native coronary artery disease. Although the saphenous vein graft (SVG) was traditionally the most-used conduit, arterial grafts (including the left and right internal thoracic arteries and the radial artery) have improved patency rates. However, the need for secondary revascularization remains common, and percutaneous coronary intervention (PCI) has become the most common modality of secondary revascularization after CABG surgery. Procedural characteristics and clinical outcomes differ considerably from those associated with PCI in patients without previous CABG surgery, owing to altered coronary anatomy and differences in conduit pathophysiology. In particular, SVG PCI carries an increased risk of complications, and operators are shifting their focus towards embolic protection strategies and complex native-vessel interventions, increasingly using SVGs as conduits to facilitate native-vessel PCI rather than pursuing SVG PCI. In this Review, we discuss the differences in conduit pathophysiology, changes in CABG surgery techniques, and the latest evidence in terms of PCI in patients with previous CABG surgery, with a particular emphasis on safety and long-term efficacy. We explore the subject of contemporary CABG surgery and subsequent percutaneous revascularization in this complex patient population.In this Review, Dangas and colleagues explore changes in coronary artery bypass graft (CABG) surgical techniques, differences in conduit vessel pathophysiology and the latest evidence for percutaneous coronary intervention in patients with previous CABG surgery.
Journal Article
A contemporary simple risk score for prediction of contrast-associated acute kidney injury after percutaneous coronary intervention: derivation and validation from an observational registry
by
Owen, Ruth
,
Nardin, Matteo
,
Pivato, Carlo Andrea
in
Acute Kidney Injury - chemically induced
,
Acute Kidney Injury - mortality
,
Adult
2021
Contrast-associated acute kidney injury can occur after percutaneous coronary intervention (PCI). Prediction of the contrast-associated acute kidney injury risk is important for a tailored prevention and mitigation strategy. We sought to develop a simple risk score to estimate contrast-associated acute kidney injury risk based on a large contemporary PCI cohort.
Consecutive patients undergoing PCI at a large tertiary care centre between Jan 1, 2012, and Dec 31, 2020, with available creatinine measurements both before and within 48 h after the procedure, were included; only patients on chronic dialysis were excluded. Patients treated between 2012 and 2017 comprised the derivation cohort and those treated between 2018 and 2020 formed the validation cohort. The primary endpoint was contrast-associated acute kidney injury, defined according to the Acute Kidney Injury Network. Independent predictors of contrast-associated acute kidney injury were derived from multivariate logistic regression analysis. Model 1 included only pre-procedural variables, whereas Model 2 also included procedural variables. A weighted integer score based on the effect estimate of each independent variable was used to calculate the final risk score for each patient. The impact of contrast-associated acute kidney injury on 1-year deaths was also evaluated.
32 378 PCI procedures were performed and screened for inclusion in the present analysis. After the exclusion of patients without paired creatinine measurements, patients on chronic dialysis, and multiple procedures, 14 616 patients were included in the derivation cohort (mean age 66·2 years, 29·2% female) and 5606 were included in the validation cohort (mean age 67·0 years, 26·4% female). Contrast-associated acute kidney injury occurred in 860 (4·3%) patients. Independent predictors of contrast-associated acute kidney injury included in Model 1 were: clinical presentation, estimated glomerular filtration rate, left ventricular ejection fraction, diabetes, haemoglobin, basal glucose, congestive heart failure, and age. Additional independent predictors in Model 2 were: contrast volume, peri-procedural bleeding, no flow or slow flow post procedure, and complex PCI anatomy. The occurrence of contrast-associated acute kidney injury in the derivation cohort increased gradually from the lowest to the highest of the four risk score groups in both models (2·3% to 34·9% in Model 1, and 2·0% to 38·8% in Model 2). Inclusion of procedural variables in the model only slightly improved the discrimination of the risk score (C-statistic in the derivation cohort: 0·72 for Model 1 and 0·74 for model 2; in the validation cohort: 0·84 for Model 1 and 0·86 for Model 2). The risk of 1-year deaths significantly increased in patients with contrast-associated acute kidney injury (10·2% vs 2·5%; adjusted hazard ratio 1·76, 95% CI 1·31–2·36; p=0·0002), which was mainly due to excess 30-day deaths.
A contemporary simple risk score based on readily available variables from patients undergoing PCI can accurately discriminate the risk of contrast-associated acute kidney injury, the occurrence of which is strongly associated with subsequent death.
None.
Journal Article
Prevention of Bleeding in Patients with Atrial Fibrillation Undergoing PCI
2016
This trial compared standard therapy (dual antiplatelet therapy plus a vitamin K antagonist) with two regimens containing rivaroxaban plus antiplatelet therapy. The rivaroxaban groups had reduced rates of bleeding and similar efficacy in preventing cardiovascular events.
Approximately 5 to 8% of patients who undergo percutaneous coronary intervention (PCI) have atrial fibrillation.
1
–
3
Dual antiplatelet therapy (DAPT) with a P2Y
12
inhibitor and aspirin is superior to oral anticoagulation with a vitamin K antagonist in reducing the risk of thrombosis in patients undergoing placement of a first-generation stent,
4
but oral anticoagulation is superior to DAPT in reducing the risk of ischemic stroke in patients with atrial fibrillation.
5
The treatment strategy for patients with atrial fibrillation who have received stents must balance the risk of stent thrombosis and ischemic stroke with the risk of bleeding. A common guideline-supported . . .
Journal Article
Complete Revascularization with Multivessel PCI for Myocardial Infarction
by
Stanković, Goran
,
Rodés-Cabau, Josep
,
Mehta, Shamir R
in
Aged
,
Cardiovascular disease
,
Cardiovascular diseases
2019
Patients with ST-segment elevation MI and multivessel coronary disease who had undergone successful culprit-lesion PCI were assigned to a strategy of either PCI of all other suitable stenoses or no further revascularization. At 3 years, the risk of cardiovascular death or new MI was lower with complete revascularization.
Journal Article