scholarly journals Association of Serum Magnesium and Calcium - Magnesium Ratio with Mortality in Patients with Coronary Artery Disease (P18-090-19)

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Li Qing ◽  
Ling Wenhua

Abstract Objectives Low serum magnesium (Mg) and high serum calcium (Ca) levels have been linked to increased mortality and cardiovascular disease (CVD) in the general population. This prospective study assessed whether there were independent associations of serum Mg levels and Ca-Mg ratio with all-cause and CVD mortality among patients with coronary artery disease (CAD). Methods A prospective cohort study of 3380 CAD patients was conducted. Cox regression models were used to estimate the association of serum Mg levels and Ca-Mg ratio with the risk of mortality. Results During a median follow-up of 7.59 years, there were 562 deaths recorded and 331 of them were CVD deaths. Spline plots displayed U-shaped associations between serum Mg levels and Ca-Mg ratio and all-cause as well as CVD mortality among CAD patients. Patients in the low serum Mg group had a 1.63-fold (95% confidence interval [CI] 1.32–2.00) risk of all-cause mortality and a 1.82-fold (95% CI 1.40–2.36) risk of CVD mortality compared with those in medium serum Mg group. Patients in high Ca-Mg ratio group had a 1.30-fold (95% CI 1.05–1.61) risk of all-cause mortality and a 1.50-fold (95% CI 1.13–1.98) risk of CVD mortality compared with those in medium Ca-Mg group. This inverse association between serum Mg and the risk of mortality did not change when participants were stratified by sex, age, types of CHD, history of diabetes and estimated glomerular filtration rate. Conclusions Low serum Mg concentrations and high Ca-Mg ratio were significantly associated with an increased risk of all-cause and CVD mortality in Chinese patients with CAD, independent of traditional CVD risk factors. Funding Sources The National Natural Science Fund.

2017 ◽  
Vol 37 (11) ◽  
pp. 2213-2219 ◽  
Author(s):  
Xuechen Chen ◽  
Yuan Zhang ◽  
Qian Chen ◽  
Qing Li ◽  
Yanping Li ◽  
...  

Objective— The present study was designed to evaluate the association of circulating fetuin-A with cardiovascular disease (CVD) and all-cause mortality. Approach and Results— We measured plasma fetuin-A in 1620 patients using an enzyme-linked immunosorbent assay kit. The patients were members of the Guangdong coronary artery disease cohort and were recruited between October 2008 and December 2011. Cox regression models were used to estimate the association between plasma fetuin-A and the risk of mortality. A total of 206 deaths were recorded during a median follow-up of 5.9 years, 146 of whom died from CVD. The hazard ratios for the second and third tertiles of the fetuin-A levels (using the first tertile as a reference) were 0.65 (95% confidence interval, 0.44–0.96) and 0.51 (95% confidence interval, 0.33–0.78) for CVD mortality ( P =0.005) and 0.65 (95% confidence interval, 0.47–0.91) and 0.48 (95% confidence interval, 0.33–0.70) for all-cause mortality ( P <0.001), respectively. Conclusions— Lower plasma fetuin-A levels were associated with an increased risk of all-cause and CVD mortality in patients with coronary artery disease independently of traditional CVD risk factors.


Cardiology ◽  
2020 ◽  
Vol 145 (2) ◽  
pp. 63-70
Author(s):  
Yaanik B. Desai ◽  
Rakesh K. Mishra ◽  
Qizhi Fang ◽  
Mary A. Whooley ◽  
Nelson B. Schiller

Background: Serial increases in high-sensitivity cardiac troponin (hs-cTnT) have been associated with death in community-dwelling adults, but the association remains uninvestigated in those with coronary artery disease (CAD). Methods: We measured hs-cTnT at baseline and after 5 years in 635 ambulatory Heart and Soul Study patients with CAD. We also performed echocardiography at rest and after treadmill exercise at baseline and after 5 years. Participants were subsequently followed for the outcome of death. We used a multivariable-adjusted Cox proportional hazards model to evaluate the association between 5-year change in hs-cTnT and subsequent all-cause mortality. Results: Of the 635 subjects, there were 386 participants (61%) who had an increase in hs-cTnT levels between baseline and year 5 measurements (median increase 5.6 pg/mL, IQR 3.2–9.9 pg/mL). There were 182 deaths after a mean 4.2-year follow-up after the year 5 visit. After adjusting for clinical variables, a >50% increase in hs-cTnT between baseline and year 5 was associated with a nearly 2-fold increased risk of death from any cause (hazard ratio 1.7, 95% confidence interval 1.1–2.7). When addition of year 5 hs-cTnT was compared to a model including clinical variables and baseline hs-cTnT, there was a modest but statistically significant increase in C-statistic from 0.82 to 0.83 (p = 0.04). Conclusion: In ambulatory patients with CAD, serial increases in hs-cTnT over time are associated with an increased risk of death.


2020 ◽  
Vol 29 (8) ◽  
pp. 1388-1395
Author(s):  
Laurence J Howe ◽  
Frank Dudbridge ◽  
Amand F Schmidt ◽  
Chris Finan ◽  
Spiros Denaxas ◽  
...  

Abstract Background There is growing evidence that polygenic risk scores (PRSs) can identify individuals with elevated lifetime risk of coronary artery disease (CAD). Whether they can also be used to stratify the risk of subsequent events among those surviving a first CAD event remain uncertain, with possible biological differences between CAD onset and progression, and the potential for index event bias. Methods Using two baseline subsamples of UK Biobank: prevalent CAD cases (N = 10 287) and individuals without CAD (N = 393 108), we evaluated associations between a CAD PRS and incident cardiovascular and fatal outcomes. Results A 1 SD higher PRS was associated with an increased risk of incident myocardial infarction (MI) in participants without CAD (OR 1.33; 95% CI 1.29, 1.38), but the effect estimate was markedly attenuated in those with prevalent CAD (OR 1.15; 95% CI 1.06, 1.25) and heterogeneity P = 0.0012. Additionally, among prevalent CAD cases, we found an evidence of an inverse association between the CAD PRS and risk of all-cause death (OR 0.91; 95% CI 0.85, 0.98) compared with those without CAD (OR 1.01; 95% CI 0.99, 1.03) and heterogeneity P = 0.0041. A similar inverse association was found for ischaemic stroke [prevalent CAD (OR 0.78; 95% CI 0.67, 0.90); without CAD (OR 1.09; 95% CI 1.04, 1.15), heterogeneity P &lt; 0.001]. Conclusions Bias induced by case stratification and survival into UK Biobank may distort the associations of PRS derived from case-control studies or populations initially free of disease. Differentiating between effects of possible biases and genuine biological heterogeneity is a major challenge in disease progression research.


2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Dongfang Su ◽  
Zhongxia Li ◽  
Xinrui Li ◽  
Yuming Chen ◽  
Yuan Zhang ◽  
...  

Objectives. To evaluate whether serum interleukin-6 (IL-6) is associated with increased risk of mortality in coronary artery disease (CAD) patients.Methods. We performed a prospective cohort study of 718 CAD patients from the Guangzhou Cardiovascular Disease Cohort (GCDC) study. Multivariable-adjusted Cox proportional hazards regression analyses were used to examine the association between serum IL-6 with all-cause and cardiovascular mortality.Results. During the 1663 person-years of followup, the cumulative all-cause mortality and cardiovascular mortality were 6.5% (n=47) and 3.3% (n=24), respectively. The mean length of followup was2.32±0.81years. In the multivariable analyses, a one-SD increment in log-transformed serum IL-6 was positively associated with an increased risk of all-cause and cardiovascular mortality, with hazard ratios (HR) of 2.93 (95% CI, 2.11–4.08) and 2.04 (95% CI, 1.34–3.68) within the patients combined and 2.98 (95% CI, 2.12–4.18) and 3.10 (95% CI, 1.98–4.85) within males, respectively. Patients in the highest serum IL-6 tertile versus the lowest tertile were at higher risk of all-cause and cardiovascular mortality, with HR of 17.12 (95% CI 3.11–71.76) and 8.68 (95% CI, 1.88–37.51), respectively.Conclusions. In hospitalized patients with CAD, serum IL-6 is significantly associated with all-cause and cardiovascular mortality.


Circulation ◽  
2021 ◽  
Vol 144 (13) ◽  
pp. 1024-1038 ◽  
Author(s):  
Harmony R. Reynolds ◽  
Leslee J. Shaw ◽  
James K. Min ◽  
Courtney B. Page ◽  
Daniel S. Berman ◽  
...  

Background: The ISCHEMIA trial (International Study of Comparative Health Effectiveness With Medical and Invasive Approaches) postulated that patients with stable coronary artery disease (CAD) and moderate or severe ischemia would benefit from revascularization. We investigated the relationship between severity of CAD and ischemia and trial outcomes, overall and by management strategy. Methods: In total, 5179 patients with moderate or severe ischemia were randomized to an initial invasive or conservative management strategy. Blinded, core laboratory–interpreted coronary computed tomographic angiography was used to assess anatomic eligibility for randomization. Extent and severity of CAD were classified with the modified Duke Prognostic Index (n=2475, 48%). Ischemia severity was interpreted by independent core laboratories (nuclear, echocardiography, magnetic resonance imaging, exercise tolerance testing, n=5105, 99%). We compared 4-year event rates across subgroups defined by severity of ischemia and CAD. The primary end point for this analysis was all-cause mortality. Secondary end points were myocardial infarction (MI), cardiovascular death or MI, and the trial primary end point (cardiovascular death, MI, or hospitalization for unstable angina, heart failure, or resuscitated cardiac arrest). Results: Relative to mild/no ischemia, neither moderate ischemia nor severe ischemia was associated with increased mortality (moderate ischemia hazard ratio [HR], 0.89 [95% CI, 0.61–1.30]; severe ischemia HR, 0.83 [95% CI, 0.57–1.21]; P =0.33). Nonfatal MI rates increased with worsening ischemia severity (HR for moderate ischemia, 1.20 [95% CI, 0.86–1.69] versus mild/no ischemia; HR for severe ischemia, 1.37 [95% CI, 0.98–1.91]; P =0.04 for trend, P =NS after adjustment for CAD). Increasing CAD severity was associated with death (HR, 2.72 [95% CI, 1.06–6.98]) and MI (HR, 3.78 [95% CI, 1.63–8.78]) for the most versus least severe CAD subgroup. Ischemia severity did not identify a subgroup with treatment benefit on mortality, MI, the trial primary end point, or cardiovascular death or MI. In the most severe CAD subgroup (n=659), the 4-year rate of cardiovascular death or MI was lower in the invasive strategy group (difference, 6.3% [95% CI, 0.2%–12.4%]), but 4-year all-cause mortality was similar. Conclusions: Ischemia severity was not associated with increased risk after adjustment for CAD severity. More severe CAD was associated with increased risk. Invasive management did not lower all-cause mortality at 4 years in any ischemia or CAD subgroup. Registration: URL: https://www.clinicaltrials.gov . Unique identifier: NCT01471522.


2019 ◽  
Vol 20 (21) ◽  
pp. 5508 ◽  
Author(s):  
Cecilia Vecoli ◽  
Andrea Borghini ◽  
Silvia Pulignani ◽  
Antonella Mercuri ◽  
Stefano Turchi ◽  
...  

Aging is one of the main risk factors for cardiovascular disease, resulting in a progressive organ and cell decline. This study evaluated a possible joint impact of two emerging hallmarks of aging, leucocyte telomere length (LTL) and common mitochondrial DNA deletion (mtDNA4977), on major adverse cardiovascular events (MACEs) and all-cause mortality in patients with coronary artery disease (CAD). We studied 770 patients (673 males, 64.8 ± 8.3 years) with known or suspected stable CAD. LTL and mtDNA4977 deletion were assessed in peripheral blood using qRT-PCR. During a median follow-up of 5.4 ± 1.2 years, MACEs were 140 while 86 deaths were recorded. After adjustments for confounding risk factors, short LTLs and high mtDNA4977 deletion levels acted independently as predictors of MACEs (HR: 2.2, 95% CI: 1.2–3.9, p = 0.01 and HR: 1.7, 95% CI: 1.1–2.9, p = 0.04; respectively) and all-cause mortality events (HR: 2.1, 95% CI: 1.1–4.6, p = 0.04 and HR: 2.3, 95% CI: 1.1–4.9, p = 0.02; respectively). Patients with both short LTLs and high mtDNA4977 deletion levels had an increased risk for MACEs (HR: 4.3; 95% CI: 1.9–9.6; p = 0.0006) and all-cause mortality (HR: 6.0; 95% CI: 2.0–18.4; p = 0.001). The addition of mtDNA4977 deletion to a clinical reference model was associated with a significant net reclassification improvement (NRI = 0.18, p = 0.01). Short LTL and high mtDNA4977 deletion showed independent and joint predictive value on adverse cardiovascular outcomes and all-cause mortality in patients with CAD. These findings strongly support the importance of evaluating biomarkers of physiological/biological age, which can predict disease risk and mortality more accurately than chronological age.


2019 ◽  
Vol 39 (1) ◽  
Author(s):  
Jing Zhang ◽  
Xiu-ling Liu ◽  
Qiao-wei Jia ◽  
Chen-hui Zhao ◽  
Jie-yin Liu ◽  
...  

Abstract Objective: The aim of the present study is to investigate the association between the single nucleotide polymorphism (SNP) sites of peroxisome proliferator-activated receptor Δ (PPARD) and the risk of coronary artery disease (CAD). To this end, a prospective observational single-center study of the clinical data from 880 subjects in a Chinese population was conducted. Methods: A total of 880 subjects, including 609 CAD patients and 271 control subjects, were selected for the present study. All inpatients had 4 ml of venous blood drawn after 12 h of fasting, and then clinical tests were conducted to obtain the biochemical parameters. CAD patients and Controls were distinguished by coronary angiography. Statistical analysis was conducted with SPSS software (ver 16.0). Results: A significant association between the G-alleles of PPARD rs3777744 and rs3798343 and a decreased risk for CAD was found. Moreover, we found an interaction between high fasting high-density lipoprotein cholesterol (HDL-C) serum levels, low serum glucose levels and their genotypes, ultimately decreasing the risk of CAD. Haplotype analysis was conducted on the three SNP sites, rs3777744 and rs3798343 to form a block [r2 = 0.79, D′ = 0.99). The A-C haplotypes were associated with an increased risk of CAD (odds ratio (OR), 95% confidence interval (CI): 1.321 (1.060–1.647), P=0.013], and the G-G haplotypes were associated with a decreased risk [OR, 95% CI: 0.714 (0.567–0.849), P=0.004]. Conclusions: Our study indicates a significant association between the G-alleles of PPARD rs3777744 and rs3798343 and a decreased CAD risk. In addition, genotypes interact with high serum HDL-C levels and low serum glucose levels, resulting in decreased prevalence of CAD.


2019 ◽  
Vol 26 (12) ◽  
pp. 1273-1284 ◽  
Author(s):  
George CM Siontis ◽  
Mattia Branca ◽  
Patrick Serruys ◽  
Sigmund Silber ◽  
Lorenz Räber ◽  
...  

Aims To investigate the clinical relevance of contemporary cut-offs of left ventricular ejection fraction (LVEF) including an intermediate phenotype with mid-range reduced ejection fraction among patients with coronary artery disease undergoing percutaneous coronary intervention. Methods and results Patient-level data were summarized from five randomized clinical trials in which 6198 patients underwent clinically indicated percutaneous coronary intervention in different clinical settings. We assessed all-cause mortality as primary endpoint at five-year follow-up. According to the proposed LVEF cut-offs, 3816 patients were included in the preserved LVEF group (LVEF ≥ 50%), 1793 in the mid-range reduced LVEF group (LVEF 40–49%) and 589 patients in the reduced LVEF group (LVEF < 40%). Patients in the reduced LVEF group were at increased risk for the primary outcome of all-cause mortality compared with both, preserved and mid-range LVEF throughout five years of follow-up (adjusted hazard ratio 2.39 (95% confidence interval 1.75–3.28, p < 0.001) and 1.68 (95% confidence interval 1.34–2.10, p < 0.001), respectively). The risk of cardiac death and the composite endpoint of cardiac death, myocardial infarction, or stroke were higher for patients in the reduced LVEF group compared with the preserved and mid-range reduced LVEF groups, but also for the mid-range LVEF compared with preserved LVEF group (adjusted p < 0.05 for all comparisons) throughout five years. Irrespective of clinical presentation at baseline (stable coronary artery disease or acute coronary syndrome), patients with reduced or mid-range LVEF were at increased risk of all-cause mortality and cardiac death up to five years compared with the other group (adjusted p < 0.05 for all comparisons). Conclusion Patients with reduced LVEF <40% or mid-range LVEF 40–49% in the context of coronary artery disease undergoing clinically indicated percutaneous coronary intervention are at increased risk of all-cause mortality, cardiac death and the composite of cardiac death, stroke and myocardial infarction throughout five years of follow-up. The recently proposed LVEF cut-offs contribute to the differentiation and risk stratification of patients with ischaemic heart disease.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Kunming Bao ◽  
Haozhang Huang ◽  
Guoyong Huang ◽  
Junjie Wang ◽  
Ying Liao ◽  
...  

Abstract Background The platelet-to-hemoglobin ratio (PHR) has emerged as a prognostic biomarker in coronary artery disease (CAD) patients after PCI but not clear in CAD complicated with congestive heart failure (CHF). Hence, we aimed to assess the association between PHR and long-term all-cause mortality among CAD patients with CHF. Methods Based on the registry at Guangdong Provincial People’s Hospital in China, we analyzed data of 2599 hospitalized patients who underwent coronary angiography (CAG) and were diagnosed with CAD complicated by CHF from January 2007 to December 2018. Low PHR was defined as ˂ 1.69 (group 1) and high PHR as ≥ 1.69 (group 2). Prognosis analysis was performed using Kaplan–Meier method. To assess the association between PHR and long-term all-cause mortality, a Cox-regression model was fitted. Results During a median follow-up of 5.2 (3.1–7.8) years, a total of 985 (37.9%) patients died. On the Kaplan–Meier analysis, patients in high PHR group had a worse prognosis than those in low PHR group (log-rank, p = 0.0011). After adjustment for confounders, high PHR was correlated with an increased risk of long-term all-cause mortality in CAD patients complicated with CHF. (adjusted hazard ratio [aHR], 1.31; 95% confidence interval [CI], 1.13–1.52, p < 0.0001). Conclusion Elevated PHR is correlated with an increased risk of long-term all-cause mortality in CAD patients with CHF. These results indicate that PHR may be a useful prognostic biomarker for this population. Meanwhile, it is necessary to take effective preventive measures to regulate both hemoglobin levels and platelet counts in this population.


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