The latest medical research on Peripheral Vascular Disease
The research magnet gathers the latest research from around the web, based on your specialty area. Below you will find a sample of some of the most recent articles from reputable medical journals about peripheral vascular disease gathered by our medical AI research bot.
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Request AccessSotatercept: The First FDA-Approved Activin A Receptor IIA Inhibitor Used in the Management of Pulmonary Arterial Hypertension.
Cardiovascular DrugsThis report illustrates the Food and Drug Administration (FDA) approval of first-in-its-class activin A receptor IIA inhibitor, sotatercept (Winrev...
Efficacy of Colchicine for Prevention of Stroke and Adverse Cardiovascular Events: A Meta-analysis of 16 Randomized Controlled Trials.
Cardiovascular DrugsColchicine has been shown to reduce adverse cardiovascular events (ACE) and stroke among patients with coronary artery disease. However, its efficacy with short- and long-term use and risk of stroke has not been well studied, with conflicting results to date.
We sought to evaluate the efficacy of colchicine for the prevention of stroke and other cardiovascular outcomes and to evaluate the effect of short- and long-term use.
We performed a systematic literature search on PubMed, EMBASE, and Clinicaltrial.gov for relevant randomized controlled trials (RCTs) from inception until July 20th, 2024. Odds ratios (ORs) were pooled using a random-effect model, and a p value of < 0.05 was considered statistically significant.
A total of 16 RCTs with 24,967 patients were included (12,538 in colchicine group and 12,429 in the control group) in the analysis. Pooled analysis of primary outcomes showed that risk of incidence of stroke was comparable between colchicine and placebo groups (OR 0.78, 95% confidence interval [CI] 0.59-1.02, p = 0.07). Pooled analysis of secondary outcomes showed that colchicine significantly reduced the risk of incidence of ACE by 33% (OR 0.67, 95% CI 0.54-0.82, p < 0.001), and myocardial infarction by 21% (OR 0.79, 95% CI 0.65-0.95, p = 0.01) compared with placebo. However, the risk of all-cause mortality (OR 0.98, 95% CI 0.79-1.21, p = 0.83) and cardiovascular mortality (OR 0.78, 95% CI 0.56-1.08, p = 0.14) were comparable between both groups of patients.
Colchicine was associated with an overall reduction in the risk of incidence of ACE and MI; however, no such effect was observed with mortality and stroke.
Levosimendan in Patients with Cardiogenic Shock Refractory to Dobutamine Weaning.
Cardiovascular DrugsThis study examines the effects of levosimendan in patients refractory to dobutamine weaning.
This retrospective study included patients with cardiogenic shock refractory to dobutamine weaning failure admitted between 2010 and 2022. Patients treated with another type of dobutamine alone were compared with those treated with levosimendan in combination with dobutamine. Successful inotrope withdrawal was defined as survival without catecholamine support, transplant, or definitive ventricular assist device at 30 days. Secondary outcomes included all-cause mortality at 30 and 90 days.
Among 349 patients with cardiogenic shock and failure to withdraw from dobutamine, levosimendan was administered in combination with dobutamine in 114 patients, and another type of dobutamine alone was administered in 235 patients. At 30 days, successful inotrope withdrawal occurred in 46 (43.4%) patients taking levosimendan plus dobutamine versus 24 (10.5%) patients in the dobutamine-only group (weighted odds ratio [OR] 4.99, 95% confidence interval [CI] 2.65-9.38; p < 0.001), with similar results at 90 days (weighted OR 6.16, 95% CI 3.22-11.78; p < 0.001). Levosimendan + dobutamine was associated with lower 30-day mortality (weighted OR 0.47, 95% CI 0.26-0.84; p = 0.01), with no difference at 90 days (weighted OR 0.67, 95% CI 0.39-1.14; p = 0.14).
Adding levosimendan to dobutamine may improve inotrope withdrawal success and reduce 30-day mortality in patients with initial weaning failure.
The Influence of High Body Mass Index (BMI > 35 kg/m2) on Apixaban Plasma Concentration in Patients with Atrial Fibrillation.
Cardiovascular DrugsApixaban, a direct oral anticoagulant is administered for stroke prevention in atrial fibrillation patients. Dosing adjustment is guided by renal function, age, and body weight. However, no data exist on its pharmacokinetics in patients with a body mass index (BMI) ≥ 35 kg/m2. The aim was to investigate the effects of BMI ≥ 35 kg/m2 on trough plasma concentrations of apixaban in patients with atrial fibrillation.
This prospective study compared steady-state trough concentrations of apixaban in patients with a BMI ≥ 35 kg/m2 and patients with a BMI < 35 kg/m2.
Sixty patients were included. In patients receiving 5 mg apixaban twice daily, the median trough plasma concentration was 29% lower in patients with a BMI ≥ 35 kg/m2 than in those with a BMI < 35 kg/m2 (148.9 ng/ml, interquartile range [IQR] 94.5-205.6, compared to 209.1 ng/ml, IQR 167-266.8 ng/ml, respectively; P = 0.044). However, median trough concentrations fell within the manufacturer's predicted range for effective steady-state apixaban exposure. A similar trend was observed with 2.5 mg apixaban twice daily, although statistical significance was not reached. Multivariate analysis revealed no correlation between BMI values and trough concentrations.
BMI ≥ 35 kg/m2 patients exhibited lower apixaban trough concentrations, while remaining within the manufacturer's established range for effective steady-state apixaban, suggesting that dose adjustment is unnecessary for this specific patient group.
Sodium-Glucose Cotransporter-2 Inhibitors After Acute Myocardial Infarction: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.
Cardiovascular DrugsPROSPERO identifier number CRD42024540843.
A comprehensive search of PubMed, EMBASE, SCOPUS, and ClinicalTrials.gov was conducted up to 1 May 2024. Only randomized controlled trials studying the use of SGLT2i in post-AMI patients were included. We included adult patients aged 18 years old and older diagnosed with AMI and initiated on SGLT2i in the acute post-AMI setting. SGLT2i studies solely in heart failure settings were excluded.
Eight clinical trials were included in the systematic review, comprising 11,436 patients. Compared with placebo, SGLT2i initiation in post-AMI patients significantly reduced total number of heart failure hospitalizations (risk ratio [RR] 0.74, 95% confidence interval [CI] 0.62-0.90) and was associated with a lower N-terminal pro-B-type natriuretic peptide (NT-proBNP) level (- 26.67 pg/ml, 95% CI - 41.74 to - 11.59). There was no difference in all-cause mortality (RR 1.02, 95% CI 0.81-1.28), cardiovascular mortality (RR 1.03, 95% CI 0.83-1.28), change in left ventricular ejection fraction, and glycated hemoglobin (HbA1c), as compared with placebo.
SGLT2i use in patients with AMI was associated with a reduction in heart failure hospitalizations and a decrease in NT-proBNP. There were no significant differences in mortality outcomes.
Efficacy of Chronic Use of Sodium-Glucose Co-transporter 2 Inhibitors on the Prevention of Contrast-Induced Acute Kidney Injury in Patients with Type 2 Diabetes Mellitus Following Coronary Procedures: A Systematic Review and Meta-Analysis.
Cardiovascular DrugsContrast-induced acute kidney injury (CI-AKI) is a common complication of iodinated contrast administration during coronary procedures, especially in patients with diabetes mellitus (DM). Besides periprocedural hydration and statins, there are no other pharmacological strategies with consistent results to prevent CI-AKI up to date. This study aims to evaluate the efficacy of chronic use of sodium-glucose co-transporter 2 (SGLT2) inhibitors on the prevention of CI-AKI in patients with type 2 DM following coronary procedures.
A systematic literature search of MEDLINE, Google Scholar, Embase, and Cochrane Library was performed. Relevant observational studies and randomized controlled studies (RCTs) were identified. Results were pooled using a random-effect model meta-analysis. Subgroup analyses were performed to evaluate the potential benefit of SGLT2 inhibitors on the prevention of CI-AKI in patients undergoing urgent or elective coronary angiography/percutaneous coronary interventions (CAG/PCI).
Seven observational studies and one randomized controlled trial with 2740 patients were included. Chronic treatment (minimum duration 2 weeks to 6 months) with an SGLT2 inhibitor was associated with a significantly reduced risk of CI-AKI in diabetic patients undergoing coronary procedures compared with the control group [risk ratio (RR) 0.48; 95% confidence interval (CI) 0.39-0.59; p < 0.001). Results of subsequent subgroup analysis showed a significant reduction in the incidence of CI-AKI in diabetic patients undergoing both elective CAG/PCI (RR 0.49; 95% CI 0.35-0.68; p<0.001) and urgent CAG/PCI (RR 0.48; 95% Cl 0.35-0.66; p < 0.001).
Chronic use of SGLT2 inhibitors may be preventative against the incidence of CI-AKI in patients with type 2 DM undergoing coronary interventions. Further RCTs are needed to confirm our findings.
Cardiomodulatory Effects of Cardiometabolic and Antihyperglycemic Medications: The Roles of Oxidative and Endoplasmic Reticulum Stress.
Cardiovascular DrugsUncontrolled hyperglycemia in people with diabetes is an established risk of premature cardiovascular disease. Repeated hypoglycemic events are als...
Vitamin D-Parathyroid Hormone-Fibroblast Growth Factor 23 Axis and Cardiac Remodeling.
Cardiovascular DrugsCardiac remodeling is a compensatory adaptive response to chronic heart failure (HF) altering the structure, function, and metabolism of the heart....
Long-Term Effects of Low-Dose Aspirin on Gastrointestinal Symptoms and Bleeding Complications in Patients with Type 2 Diabetes.
Cardiovascular DrugsLow-dose aspirin for primary prevention is determined by the balance of risks of cardiovascular events and adverse effects. We assessed the long-term gastrointestinal symptoms or bleeding with low-dose aspirin in diabetic patients.
The Japanese Primary Prevention of Atherosclerosis with Aspirin for Diabetes (JPAD) trial was a randomized clinical trial to evaluate the efficacy and safety of low-dose aspirin in patients with type 2 diabetes. As a post hoc analysis, we investigated the incidence of upper gastrointestinal symptoms or bleeding in aspirin (100 mg enteric-coated aspirin or 81 mg buffered aspirin daily) and no-aspirin groups within and beyond 3 years.
Of 2535 patients (mean age 65 years, 55% male) followed for a median of 11.2 years, 1258 were included in the aspirin group (951 enteric-coated, 208 buffered, 99 unknown) and 1277 were included in the no-aspirin group. The cumulative incidence of upper gastrointestinal symptoms or bleeding was higher in the aspirin group than the no-aspirin group (8.8% vs. 5.7% at 18 years; p < 0.0001). The increased risk in the aspirin group was prominent within 3 years, and the hazard ratio (HR) [95% confidence interval (CI)] of the aspirin group was 7.10 [3.21-15.7], but attenuated beyond 3 years (HR 1.20 [0.76-1.89]). In 1159 patients in the aspirin group, the cumulative incidence was lower in the enteric-coated than in the buffered aspirin groups (2.9% vs. 7.3%; p = 0.003) within 3 years, and the adjusted HR of enteric-coated aspirin was 0.38 [0.20-0.72] compared with the buffered aspirin group.
The upper gastrointestinal symptoms or bleeding of low-dose aspirin within 3 years, and the aspirin formulations, were relevant for decision making of initiation and continuation of low-dose aspirin for primary prevention.
Real-world data on the effectiveness of TYRX and TauroPace for preventing CIED infections.
Cardiovascular DiseaseThe implantation of cardiac implantable electronic devices (CIEDs) carries a known risk of infection. Two devices (TYRX and TauroPace) have been proposed to reduce this risk.
The aim of our study was to compare the effectiveness of TauroPace and TYRX. Real-world comparative studies were included. Data analysis was based on reconstruction of individual patient data from Kaplan-Meier curves using an artificial intelligence algorithm. The endpoint was CIED infection or systemic infection. Statistical tests included heterogeneity assessment, superiority testing, and non-inferiority testing. The primary outcome measure was the hazard ratio (HR) with confidence interval (CI).
Our literature search identified two real-world studies suitable for our analysis. Follow-up was 12 months for TauroPace (654 patients) and 60 months for TYRX (872 patients), with a total of 2,083 controls. There was no heterogeneity among controls. Compared to the pooled control group, patients treated with TYRX or TauroPace had fewer CIED infections (HR, 0.3892; 95% CI, 0.2042-0.7419; P=0.00414; HR, 0.3313; 95% CI, 0.1005-1.0925; P=0.06958, respectively). When testing for non-inferiority of TauroPace vs. TYRX, the comparison yielded a HR of 0.8494 (in favor of TYRX) with a 90% CI of 0.27-2.63; this CI of TauroPace did not meet the non-inferiority criterion set at HR>0.75 (i.e., relative difference ≤25%).
Both treatments had some important drawbacks. Regarding TYRX, more selective use in higher-risk patients should be advocated to improve its cost-effectiveness, but robust evidence is still lacking. Regarding TauroPace, our analysis testing for a non-inferiority margin of ≤25% did not meet this demonstration.
Impact of risk factors on intervened and non-intervened coronary lesions.
Cardiovascular DiseaseIn-stent restenosis (ISR) and aggravated non-intervened coronary lesions (ANL) are two pivotal aspects of disease progression in patients with coronary artery disease (CAD). Established risk factors for both include hyperlipidemia, hypertension, diabetes, chronic kidney disease, and smoking. However, there is limited research on the comparative risk factors for the progression of these two aspects of progression. The aim of this study was to analyze and compare the different impacts of identical risk factors on ISR and ANL.
This study enrolled a total of 510 patients with multiple coronary artery lesions who underwent repeated coronary angiography (CAG). All patients had previously undergone percutaneous coronary intervention (PCI) and presented non-intervened coronary lesions in addition to the previously intervened vessels.
After data analysis, it was determined that HbA1c (OR 1.229, 95% CI 1.022-1.477, P=0.028) and UA (OR 1.003, 95% CI 1.000-1.005, P=0.024) were identified as independent risk factors for ISR. Furthermore, HbA1c (OR 1.215, 95% CI 1.010-1.460, P=0.039), Scr (OR 1.007, 95% CI 1.003-1.017, P=0.009), and ApoB (OR 1.017, 95% CI 1.006-1.029, P=0.004) were identified as independent risk factors for ANL. The distribution of multiple blood lipid levels differed between the ANL only group and the ISR only group. Non-HDL-C (2.17 mmol/L vs. 2.44 mmol/L, P=0.007) and ApoB (63.5 mg/dL vs. 71.0 mg/dL, P=0.011) exhibited significantly higher values in the ANL only group compared to the ISR only group.
Blood glucose levels and chronic kidney disease were identified as independent risk factors for both ISR and ANL, while elevated lipid levels were only significantly associated with ANL. In patients with non-intervened coronary lesions following PCI, it is crucial to assess the concentration of non-HDL-C and ApoB as they serve as significant risk factors.
Exploring the impact of metabolites function on heart failure and coronary heart disease: insights from a Mendelian randomization (MR) study.
Cardiovascular DiseaseHeart failure (HF) and coronary heart disease (CHD) are major causes of morbidity and mortality worldwide. While traditional risk factors such as hypertension, diabetes, and smoking have been extensively studied, the role of metabolite functions in the development of these cardiovascular conditions has been less explored. This study employed a Mendelian randomization (MR) approach to investigate the impact of metabolite functions on HF and CHD.
To assess the causal impacts of specific metabolite risk factors on HF and CHD, this study utilized genetic variants associated with these factors as instrumental variables. Comprehensive genetic and phenotypic data from diverse cohorts, including genome-wide association studies (GWAS) and cardiovascular disease registries, were incorporated into the research.
Our results encompass 61 metabolic cell phenotypes, with ten providing strong evidence of the influence of metabolite functions on the occurrence of HF and CHD. We found that elevated levels of erucate (22:1n9), lower levels of α-tocopherol, an imbalanced citrulline-to-ornithine ratio, elevated γ-glutamyl glycine levels, and elevated 7-methylguanine levels independently increased the risk of these cardiovascular conditions. These findings were consistent across different populations and robust to sensitivity analyses.
This MR study provides valuable insights into the influence of metabolite functions on HF and CHD. However, further investigation is needed to fully understand the precise mechanisms by which these metabolite factors contribute to the onset of these conditions. Such research could pave the way for the development of targeted therapeutic strategies.