open access

Vol 30, No 4 (2023)
Original Article
Submitted: 2021-02-28
Accepted: 2021-08-06
Published online: 2021-08-17
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Combination of D-dimer level and neutrophil to lymphocyte ratio predicts long-term clinical outcomes in acute coronary syndrome after percutaneous coronary intervention

Ling-Feng Gu1, Jie Gu1, Si-Bo Wang1, Hao Wang1, Ya-Xin Wang1, Yuan Xue1, Tian-Wen Wei1, Jia-Teng Sun1, Xiao-Qing Lian1, Jia-Bao Liu1, En-Zhi Jia1, Lian-Sheng Wang1
·
Pubmed: 34490603
·
Cardiol J 2023;30(4):576-586.
Affiliations
  1. Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China

open access

Vol 30, No 4 (2023)
Original articles — Clinical cardiology
Submitted: 2021-02-28
Accepted: 2021-08-06
Published online: 2021-08-17

Abstract

Background: High D-dimer (DD) is associated with short-term adverse outcomes in patients with
acute coronary syndrome (ACS). In ACS patients who underwent percutaneous coronary intervention
(PCI), however, the value of DD (or combined with neutrophil to lymphocyte ratio [NLR]) to predict
long-term major adverse cardiovascular events (MACEs) has not been fully evaluated.

Methods: Patients diagnosed with ACS and receiving PCI were included. The primary outcome was
MACEs. Cox proportional hazards regression and logistic regression were used to illustrate the relationship
between clinical risk factors, biomarkers and MACEs. Survival models were developed based on
significant factors and evaluated by the Concordance-index (C-index).

Results: The final study cohort was comprised of 650 patients (median age, 64 years; 474 males),
including 98 (15%) with MACEs during a median follow-up period of 40 months. According to the
cut-off value of DD and NLR, the patients were separated into four groups: high DD or nonhigh DD
with high or nonhigh NLR. After adjusting for confounding variables, DD (adjusted hazard ratio
[aHR]: 2.39, 95% confidence interval [CI]: 1.52–3.76) and NLR (aHR: 2.71, 95% CI: 1.78–4.11) were
independently associated with long-term MACEs. Moreover, patients with both high DD and NLR had
a significantly higher risk in MACEs when considering patients with nonhigh DD and NLR as reference
(aHR: 6.19, 95% CI: 3.30–11.61). The area under curve increased and reached 0.70 in differentiating
long-term MACEs when DD and NLR were combined, and survival models incorporating the two
exhibited a stronger predictive power (C-index: 0.75).

Conclusions: D-dimer (or combined with NLR) can be used to predict long-term MACEs in ACS
patients undergoing PCI.

Abstract

Background: High D-dimer (DD) is associated with short-term adverse outcomes in patients with
acute coronary syndrome (ACS). In ACS patients who underwent percutaneous coronary intervention
(PCI), however, the value of DD (or combined with neutrophil to lymphocyte ratio [NLR]) to predict
long-term major adverse cardiovascular events (MACEs) has not been fully evaluated.

Methods: Patients diagnosed with ACS and receiving PCI were included. The primary outcome was
MACEs. Cox proportional hazards regression and logistic regression were used to illustrate the relationship
between clinical risk factors, biomarkers and MACEs. Survival models were developed based on
significant factors and evaluated by the Concordance-index (C-index).

Results: The final study cohort was comprised of 650 patients (median age, 64 years; 474 males),
including 98 (15%) with MACEs during a median follow-up period of 40 months. According to the
cut-off value of DD and NLR, the patients were separated into four groups: high DD or nonhigh DD
with high or nonhigh NLR. After adjusting for confounding variables, DD (adjusted hazard ratio
[aHR]: 2.39, 95% confidence interval [CI]: 1.52–3.76) and NLR (aHR: 2.71, 95% CI: 1.78–4.11) were
independently associated with long-term MACEs. Moreover, patients with both high DD and NLR had
a significantly higher risk in MACEs when considering patients with nonhigh DD and NLR as reference
(aHR: 6.19, 95% CI: 3.30–11.61). The area under curve increased and reached 0.70 in differentiating
long-term MACEs when DD and NLR were combined, and survival models incorporating the two
exhibited a stronger predictive power (C-index: 0.75).

Conclusions: D-dimer (or combined with NLR) can be used to predict long-term MACEs in ACS
patients undergoing PCI.

Get Citation

Keywords

acute coronary syndrome, D-dimer, neutrophil to lymphocyte ratio, long-term outcome, percutaneous coronary intervention

Supp./Additional Files (3)
Supplemental Table 1: Univariate and multivariate COX regression analyses for predicting MACEs.
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Supplemental Table 2: Univariate and multivariate logistic regression analyses for predicting MACEs.
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Supplemental Figure 1: Kaplan-Meier survival curves in patients with ACS undergoing PCI. (A) according to the cut-off value of D-dimer; (B) according to the cut-off value of NLR. The median follow-up period was 40 months. For Figure 1A and 1B, P < 0.001.
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About this article
Title

Combination of D-dimer level and neutrophil to lymphocyte ratio predicts long-term clinical outcomes in acute coronary syndrome after percutaneous coronary intervention

Journal

Cardiology Journal

Issue

Vol 30, No 4 (2023)

Article type

Original Article

Pages

576-586

Published online

2021-08-17

Page views

1623

Article views/downloads

758

DOI

10.5603/CJ.a2021.0097

Pubmed

34490603

Bibliographic record

Cardiol J 2023;30(4):576-586.

Keywords

acute coronary syndrome
D-dimer
neutrophil to lymphocyte ratio
long-term outcome
percutaneous coronary intervention

Authors

Ling-Feng Gu
Jie Gu
Si-Bo Wang
Hao Wang
Ya-Xin Wang
Yuan Xue
Tian-Wen Wei
Jia-Teng Sun
Xiao-Qing Lian
Jia-Bao Liu
En-Zhi Jia
Lian-Sheng Wang

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