P reeclampsia is a major cause of maternal mortality worldwide 1 and affects 2% to 8% of all pregnancies. 2,3 It is confined to pregnancy and defined as onset of hypertension after 20-week gestation with proteinuria, organ dysfunction, or uteroplacental dysfunction. 4 The pathogenesis of preeclampsia remains poorly understood and is thought to be because of the failure of spiral artery remodeling in the placenta causing placental hypoperfusion and hypoxia. The resultant oxidative stress triggers an excessive systemic inflammatory response, which causes endothelial dysfunction and vasoconstriction leading to systemic hypertension and end-organ hypoperfusion. 2,5 There is growing evidence that these effects on end organs persist after pregnancy.Cardiovascular disease is a leading cause of mortality globally and also of maternal death in the United Kingdom and United States. 6,7 Several studies have examined the relationship between preeclampsia and future incident cardiovascular disease, although the literature has been inconsistent. Some studies reported significantly higher risks of composite cardiovascular events or heart failure, 8,9 whereas others have not demonstrated such relationships. 10,11 It is unclear whether preeclampsia is an independent risk factor for future cardiovascular disease or an early marker of women with high-risk profiles for future cardiovascular disease. Factors that predispose women to preeclampsia are also found in the risk profile for cardiovascular diseases. These include obesity, 12 metabolic abnormalities, dyslipidemia, insulin resistance, 13 heightened inflammatory responses, hypercoagulable states, and endothelial dysfunction.14 Alternatively, the body may not fully recover from the damage to the Background-Preeclampsia is a pregnancy-specific disorder resulting in hypertension and multiorgan dysfunction. There is growing evidence that these effects persist after pregnancy. We aimed to systematically evaluate and quantify the evidence on the relationship between preeclampsia and the future risk of cardiovascular diseases. Methods and Results-We studied the future risk of heart failure, coronary heart disease, composite cardiovascular disease, death because of coronary heart or cardiovascular disease, stroke, and stroke death after preeclampsia. A systematic search of MEDLINE and EMBASE was performed to identify relevant studies. We used random-effects meta-analysis to determine the risk. Twenty-two studies were identified with >6.4 million women including >258 000 women with preeclampsia. Meta-analysis of studies that adjusted for potential confounders demonstrated that preeclampsia was independently associated with an increased risk of future heart failure (risk ratio ). Conclusions-Preeclampsia is associated with a 4-fold increase in future incident heart failure and a 2-fold increased risk in coronary heart disease, stroke, and death because of coronary heart or cardiovascular disease. Our study highlights the importance of lifelong monitoring of cardiovascular risk f...
BackgroundRecent recommendations suggest that in patients with severe aortic stenosis undergoing transcatheter aortic valve implantation and coexistent significant coronary artery disease, the latter should be treated before the index procedure; however, the evidence basis for such an approach remains limited. We performed a systematic review and meta‐analysis to study the clinical outcomes of patients with coronary artery disease who did or did not undergo revascularization prior to transcatheter aortic valve implantation.Methods and ResultsWe conducted a search of Medline and Embase to identify studies evaluating patients who underwent transcatheter aortic valve implantation with or without percutaneous coronary intervention. Random‐effects meta‐analyses with the inverse variance method were used to estimate the rate and risk of adverse outcomes. Nine studies involving 3858 participants were included in the meta‐analysis. Patients who underwent revascularization with percutaneous coronary intervention had a higher rate of major vascular complications (odd ratio [OR]: 1.86; 95% confidence interval [CI], 1.33–2.60; P=0.0003) and higher 30‐day mortality (OR: 1.42; 95% CI, 1.08–1.87; P=0.01). There were no differences in effect estimates for 30‐day cardiovascular mortality (OR: 1.03; 95% CI, 0.35–2.99), myocardial infarction (OR: 0.86; 95% CI, 0.14–5.28), acute kidney injury (OR: 0.89; 95% CI, 0.42–1.88), stroke (OR: 1.07; 95% CI, 0.38–2.97), or 1‐year mortality (OR: 1.05; 95% CI, 0.71–1.56). The timing of percutaneous coronary intervention (same setting versus a priori) did not negatively influence outcomes.ConclusionsOur analysis suggests that revascularization before transcatheter aortic valve implantation confers no clinical advantage with respect to several patient‐important clinical outcomes and may be associated with an increased risk of major vascular complications and 30‐day mortality. In the absence of definitive evidence, careful evaluation of patients on an individual basis is of paramount importance to identify patients who might benefit from elective revascularization.
Immediate assessment of coronary microcirculation during treatment of ST elevation myocardial infarction (STEMI) may facilitate patient stratification for targeted treatment algorithms. Use of pressure-wire to measure the index of microcirculatory resistance (IMR) is possible but has inevitable practical restrictions. We aimed to develop and validate angiographyderived index of microcirculatory resistance (IMR angio) as a novel and pressure-wire-free index to facilitate assessment of the coronary microcirculation. 45 STEMI patients treated with primary percutaneous coronary intervention (pPCI) were enrolled. Immediately before stenting and at completion of pPCI, IMR was measured within the infarct related artery (IRA). At the same time points, 2 angiographic views were acquired during hyperaemia to measure quantitative flow ratio (QFR) from which IMR angio was derived. In a subset of 15 patients both IMR and IMR angio were also measured in the non-IRA. Patients underwent cardiovascular magnetic resonance imaging (CMR) at 48 h for assessment of microvascular obstruction (MVO). IMR angio and IMR were significantly correlated (ρ: 0.85, p < 0.001). Both IMR and IMR angio were higher in the IRA rather than in the non-IRA (p = 0.01 and p = 0.006, respectively) and were higher in patients with evidence of clinically significant MVO (> 1.55% of left ventricular mass) (p = 0.03 and p = 0.005, respectively). Post-pPCI IMR angio presented and area under the curve (AUC) of 0.96 (CI95% 0.92-1.00, p < 0.001) for prediction of post-pPCI IMR > 40U and of 0.81 (CI95% 0.65-0.97, p < 0.001) for MVO > 1.55%. IMR angio is a promising tool for the assessment of coronary microcirculation. Assessment of IMR without the use of a pressure-wire may enable more rapid, convenient and cost-effective assessment of coronary microvascular function.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.