scholarly journals Prognostic Utility of Secretory Phospholipase A2 in Patients with Stable Coronary Artery Disease

2011 ◽  
Vol 57 (9) ◽  
pp. 1311-1317 ◽  
Author(s):  
Michelle L O'Donoghue ◽  
Ziad Mallat ◽  
David A Morrow ◽  
Joelle Benessiano ◽  
Sarah Sloan ◽  
...  

BACKGROUND Secretory phospholipase A2 (sPLA2) may contribute to atherogenesis. To date, few prospective studies have examined the utility of sPLA2 for risk stratification in coronary artery disease (CAD). METHODS We measured plasma sPLA2 activity at baseline in 3708 subjects in the PEACE randomized trial of trandolapril vs placebo in stable CAD. Median follow-up was 4.8 years. We used Cox regression to adjust for demographics, clinical risk factors, apolipoprotein B, apolipoprotein A1, and medications. RESULTS After multivariable adjustment, sPLA2 was associated with an increased risk of cardiovascular death, myocardial infarction, or stroke (adjusted hazard ratio Q4:Q1 1.55, 95% CI 1.13–2.14) and cardiovascular death or heart failure (1.91, 1.20–3.03). In further multivariable assessment, increased activity levels of sPLA2 were associated with the risk of cardiovascular death, myocardial infarction, or stroke (adjusted hazard ratio 1.47, 95% CI 1.06–2.04), independent of lipoprotein-associated phospholipase A2 mass and C-reactive protein, and modestly improved the area under the curve (AUC) beyond established clinical risk factors (AUC 0.668–0.675, P = 0.01). sPLA2, N-terminal pro-B-type natriuretic peptide, and high-sensitivity cardiac troponin T all were independently associated with cardiovascular death or heart failure, and each improved risk discrimination (P = 0.02, P < 0.001, P < 0.001, respectively). CONCLUSIONS sPLA2 activity provides independent prognostic information beyond established risk markers in patients with stable CAD. These data are encouraging for studies designed to evaluate the role of sPLA2 as a therapeutic target.

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Mabel Aoun ◽  
Rabab Khalil ◽  
Walid Mahfoud ◽  
Haytham Fatfat ◽  
Line Bou Khalil ◽  
...  

Abstract Background Hemodialysis patients with COVID-19 have been reported to be at higher risk for death than the general population. Several prognostic factors have been identified in the studies from Asian, European or American countries. This is the first national Lebanese study assessing the factors associated with SARS-CoV-2 mortality in hemodialysis patients. Methods This is an observational study that included all chronic hemodialysis patients in Lebanon who were tested positive for SARS-CoV-2 from 31st March to 1st November 2020. Data on demographics, comorbidities, admission to hospital and outcome were collected retrospectively from the patients’ medical records. A binary logistic regression analysis was performed to assess risk factors for mortality. Results A total of 231 patients were included. Mean age was 61.46 ± 13.99 years with a sex ratio of 128 males to 103 females. Around half of the patients were diabetics, 79.2% presented with fever. A total of 115 patients were admitted to the hospital, 59% of them within the first day of diagnosis. Hypoxia was the major reason for hospitalization. Death rate was 23.8% after a median duration of 6 (IQR, 2 to 10) days. Adjusted regression analysis showed a higher risk for death among older patients (odds ratio = 1.038; 95% confidence interval: 1.013, 1.065), patients with heart failure (odds ratio = 4.42; 95% confidence interval: 2.06, 9.49), coronary artery disease (odds ratio = 3.27; 95% confidence interval: 1.69, 6.30), multimorbidities (odds ratio = 1.593; 95% confidence interval: 1.247, 2.036), fever (odds ratio = 6.66; 95% confidence interval: 1.94, 27.81), CRP above 100 mg/L (odds ratio = 4.76; 95% confidence interval: 1.48, 15.30), and pneumonia (odds ratio = 19.18; 95% confidence interval: 6.47, 56.83). Conclusions This national study identified older age, coronary artery disease, heart failure, multimorbidities, fever and pneumonia as risk factors for death in patients with COVID-19 on chronic hemodialysis. The death rate was comparable to other countries and estimated at 23.8%.


2001 ◽  
Vol 12 (7) ◽  
pp. 1516-1523 ◽  
Author(s):  
AUSTIN G. STACK ◽  
WENDY E. BLOEMBERGEN

Abstract. Despite the high prevalence of coronary artery disease (CAD) among patients with end-stage renal disease (ESRD), few studies have identified clinical correlates using national data. The purpose of this study was to determine the prevalence and clinical associations of CAD in a national random sample of new ESRD in the United States in 1996/1997 (n = 4025). Data on demographic characteristics and comorbidities were obtained from the Dialysis Morbidity and Mortality Study, Wave 2. The principal outcome was CAD, defined as the presence of a previous history of CAD, myocardial infarction, or angina, coronary artery bypass surgery, coronary angioplasty, or abnormal coronary angiographic findings. Multivariate logistic regression analysis was used to assess the relationship of conventional factors and proposed uremic factors to the presence of CAD. CAD was present in 38% of patients. Of the total cohort, 17% had a history of myocardial infarction and 23% had angina. Several conventional risk factors, including advancing age, male gender, diabetes mellitus, and smoking, were significantly associated with CAD. Of the proposed uremic factors, lower serum albumin levels but higher residual renal function and higher hematocrit values were significantly associated with the presence of CAD. Vascular comorbid conditions, structural cardiac abnormalities, white race, and geographic location were also strongly correlated with the presence of CAD. This national study suggests that several conventional CAD risk factors may also be risk factors for CAD among the ESRD population. This study identifies nonconventional factors such as serum albumin levels, vascular comorbid conditions, and structural cardiac abnormalities as important disease correlates. Future logitudinal studies are required to explore the relative importance of the relationships observed here.


Author(s):  
Muzakkir Amir ◽  
Mirnawati Mappiare ◽  
Paskalis Indra

Background: The polymorphism of cytochrome P450 2C19 (CYP2C19) has been documented as the determinant variability in the antiplatelet effect of clopidogrel. The relation between CYP2C19 polymorphism and the antiplatelet efficacy of clopidogrel in Indonesian patients with coronary artery disease (CAD) is unknown. To address this issue, we examined the distribution of CYP2C19 genotypes and platelet aggregation, and assessed the impact of CYP2C19 polymorphism on response to clopidogrel and cardiovascular events. Methods: This observational analytic study with prospective cohort approach was conducted in Wahidin Sudirohusodo and Hasanuddin University Hospital, Makassar. We measured the CYP2C19 genotype by polymerase chain reaction-restriction fragment linked polymorphism (PCR-RFLP) method and platelet aggregation by optical platelet aggregometry with 10 μmol of adenosine diphosphate (ADP) in 69 patients with stable CAD who were treated with clopidogrel. Platelet hyperaggregation was defined as maximal platelet aggregation > 94.3%. The patients were followed up every month at the outpatient department for 6 months or at end point. The end point was acute myocardial infarction, ischemic stroke, or cardiovascular death. Results: Distribution of CYP2C19 alleles were 89.8%, 40.6%, and 11.6%, in CYP2C19*1, CYP2C19*2, and CYP2C19*3, respectively. Distribution of CYP2C19 genotype were 50.7%, 29.0%, 8.7%, 8.7%, and 2.9% in CYP2C19*1/*1, *1/*2, *1/*3, *2/*2, and *2/*3, respectively. Platelet hyper aggregation was more in patients with polymorphism than wild type (p 0.034; OR 3.707) and was associated with cardiovascular events (p 0.030; OR 13.250). There was acute myocardial infarction in 2 patients, ischemic stroke in 1 patient, and cardiovascular death in 1 patient. All of these patients were carrying at least one variant allele of CYP2C19; details of genotype were in two patients with CYP2C19*1/*2, one patient with *2/*2, and one with *2/*3 alleles. Conclusion: CYP2C19*2 and *3 were associated with cardiovascular events due to platelet hyper aggregation.


Circulation ◽  
2015 ◽  
Vol 131 (suppl_1) ◽  
Author(s):  
Yariv Gerber ◽  
Susan A Weston ◽  
Maurice E Sarano ◽  
Sheila M Manemann ◽  
Alanna M Chamberlain ◽  
...  

Background: Little is known about the association between coronary artery disease (CAD) and the risk of heart failure (HF) after myocardial infarction (MI), and whether it differs by reduced (HFrEF) or preserved (HFpEF) ejection fraction (EF) has yet to be determined. Subjects and Methods: Olmsted County, Minnesota residents (n=1,924; mean age, 64 years; 66% male) with first MI diagnosed in 1990-2010 and no prior HF were followed through 2013. Framingham Heart Study criteria were used to define HF, which was further classified according to EF (applying a 50% cutoff). The extent of angiographic CAD was defined at index MI according to the number of major epicardial coronary arteries with ≥50% lumen diameter obstruction. Fine & Gray and Cox proportional hazards regression models were used to assess the association of CAD categories with incidence of HF, and multiple imputation methodology was applied to account for the 19% with missing EF data. Results: During a mean (SD) follow-up of 6.7 (5.9) years, 594 patients developed HF. Adjusted for age and sex, with death considered a competing risk, the cumulative incidence rates of HF among patients with 1- (n=581), 2- (n=622), and 3-vessel disease (n=721) were 11.2%, 14.6% and 20.5% at 30 days; and 18.1%, 22.3% and 29.4% at 5 years after MI, respectively. The increased risk of HF with greater number of occluded vessels was only modestly attenuated after further adjustment for patient and MI characteristics, and did not differ materially by EF (Table). Conclusions: The extent of angiographic CAD expressed by the number of diseased vessels is independently associated with HF incidence after MI. The association is evident promptly after MI and applies to both HFrEF and HFpEF.


2011 ◽  
Vol 33 (2) ◽  
pp. 191-202 ◽  
Author(s):  
Fabrice Ivanes ◽  
Sophie Susen ◽  
Frédéric Mouquet ◽  
Pascal Pigny ◽  
François Cuilleret ◽  
...  

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