Prognostic value of age-adjusted d-dimer cutoff thresholds in patients with myocardial infarction treated by percutaneous coronary intervention

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
R Chen ◽  
C Liu ◽  
P Zhou ◽  
Y Tan ◽  
Z Sheng ◽  
...  

Abstract Introduction The association between D-dimer and outcomes of patients with myocardial infarction (MI) remains controversial. Using age-adjusted D-dimer cutoff thresholds significantly improves the accuracy of diagnosis for thrombotic diseases. This study aimed to investigate the prognostic value of age-adjusted D-dimer in MI patients treated by percutaneous coronary intervention (PCI). Methods In this observational study, 3614 consecutive patients with MI treated by PCI were retrospectively recruited. The baseline age-adjusted D-dimer threshold was 500 ng/mL, and was calculated as age × 10 in patients older than 50 years. Cox regression was used for outcome analysis. The primary outcome was all-cause death. Discrimination and reclassification were calculated to assess the additional prognostic value of D-dimer when combined with established clinical risk factors and the Global Registry of Acute Coronary Events (GRACE) risk score. Results During a median follow-up of 652 days, a total of 194 deaths occurred. High D-dimer level, as defined by age-adjusted thresholds, was an independent predictor for all-cause death (hazard ratio:1.67, 95% confidence interval: 1.23–2.27, P=0.001). Addition of D-dimer level (high or low) significantly improved risk classification for death when combined with established clinical risk factors (net reclassification index [NRI]: 0.601, P<0.001; integrated discrimination improvement [IDI]: 0.011, P=0.046) and GRACE score (NRI: 0.618, P<0.001; IDI: 0.015, P=0.011). Conclusions In patients with MI treated by PCI, D-dimer elevation defined by age-adjusted thresholds was an independent predictor for adverse outcomes, and provided additional prognostic value when combined with clinical risk factors and GRACE score. Funding Acknowledgement Type of funding source: Public Institution(s). Main funding source(s): Chinese Academy of Medical Sciences

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Runzhen Chen ◽  
Chen Liu ◽  
Peng Zhou ◽  
Yu Tan ◽  
Zhaoxue Sheng ◽  
...  

Abstract Background Associations between D-dimer and outcomes of patients with acute coronary syndromes (ACS) remain controversial. This study aimed to investigate the prognostic value of D-dimer in ACS patients treated by percutaneous coronary intervention (PCI). Methods In this observational study, 3972 consecutive patients with ACS treated by PCI were retrospectively recruited. The X-tile program was used to determine the optimal D-dimer thresholds for risk stratifications. Cox regression with multiple adjustments was used for outcome analysis. Restricted cubic spline (RCS) analysis was performed to assess the dose-response association between D-dimer and outcomes. The C-index was calculated to evaluate the additional prognostic value of D-dimer when added to clinical risk factors and commonly used clinical risk scores, with internal validations using bootstrapping methods. The primary outcome was all-cause death. Results During a median follow-up of 720 days, 225 deaths occurred. Based on the thresholds generated by X-tile, ACS-PCI patients with median (420–1150 ng/mL, hazard ratio [HR]: 1.58, 95 % confidence interval [CI]: 1.14–2.20, P = 0.007) and high (≥ 1150 ng/mL, HR: 1.98, 95 % CI: 1.36–2.89, P < 0.001) levels of D-dimer showed substantially higher risk of death compared to those with low D-dimer (< 420 ng/mL). RCS analysis depicted a constant relation between D-dimer and various outcomes. The addition of D-dimer levels significantly improved risk predictions for all-cause death when combined with the fully adjusted models (C-index: 0.853 vs. 0.845, P difference = 0.021), the GRACE score (C-index: 0.826 vs. 0.814, P difference = 0.027), and the TIMI score (C-index: 0.804 vs. 0.776, P difference < 0.001). The predicted mortality at the median follow-up (two years) was 1.7 %, 5.2 %, and 10.9 % for patients with low, median, and high D-dimer, respectively, which was well matched with the observed mortality (low D-dimer group: 1.2 %, median D-dimer group: 5.2 %, and high D-dimer group: 12.6 %). Conclusions For ACS patients treated by PCI, D-dimer level was an independent predictor for adverse outcomes, and provided additional prognostic value when combined with clinical risk factors and risk scores. Risk stratifications based on D-dimer was plausible to differentiate ACS-PCI patients with higher risk of death.


Heart ◽  
2021 ◽  
pp. heartjnl-2020-318764
Author(s):  
Jiesuck Park ◽  
Yeonyee Elizabeth Yoon ◽  
Kyoung Min Kim ◽  
In-Chang Hwang ◽  
Wonjae Lee ◽  
...  

ObjectiveWe investigated whether the evaluation of bone mineral density (BMD) provides independent and incremental prognostic value for predicting atherosclerotic cardiovascular disease (ASCVD) in women.MethodsA total of 12 681 women aged 50–80 years (mean, 63.0±7.8 years) who underwent dual-energy X-ray absorptiometry were retrospectively analysed. We assessed the hazard ratio (HR) for ASCVD events (ASCVD death, non-fatal myocardial infarction and ischaemic stroke) according to the BMD or a clinical diagnosis of osteopenia or osteoporosis, with adjustment for clinical risk factors, including age, body mass index, hypertension, type 2 diabetes, hyperlipidaemia, current smoking and previous fracture. We also evaluated whether the addition of BMD or a clinical diagnosis of osteopenia or osteoporosis to clinical risk factors improved the prediction for ASCVD events.ResultsIn total, 468 women (3.7%) experienced ASCVD events during follow-up (median, 9.2 years). Lower BMD at the lumbar spine, femur neck and total hip was independently associated with higher risk for ASCVD events (adjusted HR per 1-standard deviation decrease in BMD: 1.16, p<0.001; 1.29, p<0.001; 1.38, p<0.001; respectively). A clinical diagnosis of osteoporosis was also independently associated with higher risk for ASCVD events (adjusted HR: 1.79, p<0.001). The addition of BMD or a clinical diagnosis of osteopenia or osteoporosis to clinical risk factors demonstrated significant incremental value in discriminating ASCVD events (addition of total hip BMD, p for difference <0.001).ConclusionThe evaluation of BMD provides independent and incremental prognostic value for ASCVD in women and thus may improve risk stratification in women.


Blood ◽  
2014 ◽  
Vol 124 (21) ◽  
pp. 584-584
Author(s):  
Susanna Ranta ◽  
Nadine Gretenkort Andersson ◽  
Ulf R. Tedgard ◽  
Tony Frisk ◽  
Maria Winther Gunnes ◽  
...  

Abstract Introduction Cerebral sinus venous thrombosis (CSVT) is potentially life-threatening thrombosis with mortality around 10%. Venous thromboembolism (VTE) is a common complication in children with cancer. These children have several thrombotic risk factors such as the malignancy itself, severe infections, prothrombotic medication and immobilization. The treatment of acute lymphoblastic leukemia (ALL) includes steroids and asparaginase (ASP), raising the VTE risk. In children with ALL the central nervous system (CNS) is a common localization for VTE. However, retrospective studies on small numbers of patients, larger studies and population-based data in children are scarce. The five Nordic countries, Estonia and Lithuania have a common treatment protocol for children with ALL between 1 and 18 years of age with prospective registration of toxicities, including CSVT offering a unique opportunity to study CSVT in this patient group. This is to our knowledge the largest report of children with ALL and CSVT describing the incidence, symptoms, treatment and the effect of CSVT on ALL treatment. Methods We assessed the symptoms, treatment, clinical risk factors and outcome of all children between ages 1 and 17 years at diagnosis of B-cell precursor or T-cell ALL between June 2008 and July 2013 and with CSVT. Data were collected from the patients’ medical records and the NOPHO leukemia registry. Results In total, 20 (1.9%) of the 1038 children with ALL treated according to the NOPHO ALL 2008 protocol developed CSVT. The cumulative incidence of CSVT was 2.0%. All the thromboses occurred within the first 5 months of treatment. The most common symptoms at the diagnosis of CSVT were headache, convulsions, weakness/fatigue and cerebral nerve palsy/hemiparesis/hemiplegia. The most frequent localizations for CSVT were sinus sagittalis (n=16) and sinus transversus (n=10). However, in most cases multiple cerebral veins were involved ( 70%). Median D-dimer at time of the CSVT diagnosis was 0.85 mg/L (range 0.19-4.7 mg/L) with 5 patients having normal D-dimer. We could not identify any clinical risk factors for CSVTs. CSVT was associated with steroids (treatment within 2 weeks before the diagnosis of CSVT) in 16/20 and with Pegylated asparaginase in 16/20. Fifteen patients were later screened for the inherited thrombophilic factors; one child had heterozygous prothrombin G20110A mutation and another heterozygous factor V (R506Q) Leiden mutation. Most patients (19/20) were treated with anticoagulants: mostly low molecular weight heparin (LMWH). The median treatment with LMWH was 26 weeks (range 14-119 weeks). No bleeding complications were observed in connection with LMWH. Two deaths were directly related to CSVT. Asparaginase was omitted from the treatment in 7 and delayed or reduced in 5 of the cases raising the risk for subsequent suboptimal leukaemia treatment. Of the surviving 18 patients, follow-up imaging revealed complete recanalization in 7 and partial recanalization in 7 cases. No imaging was available for the remaining 4 patients. Conclusions The incidence of CSVT in children with ALL was approximately 2%. No statistically significant clinical predictors for CSVT were identified. The mortality related to CSVT was 10%. Anticoagulation with LMWH was the treatment of choice in most cased and was well tolerated. Disclosures No relevant conflicts of interest to declare.


2019 ◽  
Vol 2019 ◽  
pp. 1-8
Author(s):  
Zi-wen Zhao ◽  
Yi-wei Xu ◽  
Shu-mei Li ◽  
Jin-jian Guo ◽  
Jian-min Sun ◽  
...  

Background. Soluble lectin-like oxidized low-density lipoprotein receptor-1 (sLOX-1) may be a potential biomarker of coronary artery disease (CAD) and stroke. Objective. We aimed to investigate the association and prognostic value of elevated sLOX-1 concentrations with regard to long-term major adverse cardiovascular and cerebrovascular events (MACCEs) in patients with CAD undergoing primary percutaneous coronary intervention (PCI). Methods. A total of 1011 patients were enrolled. Serum sLOX-1 concentrations were detected by the enzyme-linked immunosorbent assay (ELISA). Patients were followed for 2 years. Multivariate Cox regression and Kaplan-Meier survival curve were explored to assess the association between sLOX-1 and MACCEs. A receiver operating characteristic (ROC) curve was used to evaluate the diagnostic efficacy of sLOX-1. Results. Two-year MACCEs were associated with serum sLOX-1 concentrations (HR 1.278, 95% CI 1.019-1.604, P=0.034), left main disease (HR 2.938, 95% CI 1.246-6.925, P=0.014), small-caliber stents used (HR 2.207, 95% CI 1.189-4.095, P=0.012), and total stent length (HR 1.057, 95% CI 1.005-1.112, P=0.030). Serum sLOX-1 concentration≥1.10 ng/ml had maximum sensitivity and specificity in predicting the occurrence of 2-year MACCEs (P<0.001). Patients with higher serum sLOX-1 concentrations showed a significantly higher incidence of MACCEs in the Kaplan-Meier curve (P<0.001). The combination of any of the risk factors identified in multiple Cox regression was associated with a stepwise increase in MACCE rate (P<0.001). Conclusions. High baseline serum sLOX-1 concentration predicts 2-year MACCEs and shows an additional prognostic value to conventional risk factors in patients after primary PCI. sLOX-1 determination might play a complementary role in the risk stratification of patients with CAD treated with PCI.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
S Katano ◽  
T Yano ◽  
T Tsukada ◽  
H Kouzu ◽  
S Honma ◽  
...  

Abstract Background Despite accumulating evidence of a close association between orthopedic fractures and chronic heart failure (CHF), the clinical risk factors of osteoporosis, defined as reduction in bone mineral densities (BMDs), in CHF patients have not been systematically analyzed. In addition, the impact of osteoporosis on prognosis of CHF remains unclear. Aims We aimed to clarify the prevalence, clinical risk factors, and prognostic impact of osteoporosis in CHF patients. Methods We retrospectively examined 303 CHF patients (75 years, [interquartile range (IQR), 66–82 years]; 41% female). BMDs at the lumber spine, femoral neck, and total femur were measured by dual-energy X-ray absorptiometry (DEXA), and osteoporosis was diagnosed when BMD at any of the three sites was less than 70% of Young Adult Mean. Results The prevalence of osteoporosis in the CHF patients was 40%. Patients with osteoporosis were older (79 [IQR, 74–86] vs. 72 [IQR, 62–80] years), included a large percentage of females, had slower gait speed and had lower body mass index (BMI). Loop diuretics and warfarin were used more frequently and direct oral anticoagulants (DOACs) were used less frequently in patients with osteoporosis than in patients without osteoporosis. Multivariate logistic regression analysis indicated that sex (odds ratio [OR] 5.07, 95% Confidence Interval [CI] 2.68–9.61, p&lt;0.01), BMI (OR, 0.83; 95% CI, 0.75–0.91; p&lt;0.01), gait speed (OR, 0.80; 95% CI, 0.70–0.92; p&lt;0.01), loop diuretics use (OR, 2.52; 95% CI, 1.20–5.27; p=0.01) and no DOACs use (OR, 0.43; 95% CI, 0.19–0.96; p=0.04) were independently associated with osteoporosis. During the mean follow-up period of 290±254 days, 92 patients (30.4%) had adverse events. When patients with osteoporosis were divided into subgroups according to the number of sites with BMD of an osteoporosis level, Kaplan-Meier survival curves showed that the rate of adverse events (death and cardiovascular events) was higher in patients with osteoporotic BMD at two or more sites than in patients without osteoporosis (51% vs. 23%, p=0.03) (Figure). In multivariate Cox regression analyses, osteoporotic BMD at two or more sites was an independent predictor of adverse events after adjustment for age, sex, and NT-proBNP level (Hazard ratio, 1.74; 95% CI, 1.01–2.99; p=0.04). Conclusion The risk of osteoporosis may be increased in users of loop diuretics and may be decreased in users of DOACs in CHF patients. Extent of osteoporosis is a novel predictor of adverse events in CHF patients. Funding Acknowledgement Type of funding source: Public grant(s) – National budget only. Main funding source(s): The Japan Society for the Promotion of Science KAKENHI


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