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Prognostic Value of Elevated Homocysteine Levels in Korean Patients with Coronary Artery Disease: A Propensity Score Matched Analysis
Korean Circulation Journal ; : 154-160, 2016.
Article in English | WPRIM | ID: wpr-221732
ABSTRACT
BACKGROUND AND

OBJECTIVES:

We sought to determine whether an elevated homocysteine (Hcy) level is associated with a worse prognosis in Korean patients with coronary artery disease (CAD). SUBJECTS AND

METHODS:

A total of 5839 patients (60.4% male, mean age 61.3±11.2 years) with CAD were enrolled from 2000 to 2010 at Gangnam Severance Hospital. CAD was diagnosed by invasive coronary angiography. Laboratory values including Hcy level were obtained on the day of coronary angiography and analyses were performed shortly after sampling. Patients were divided into two groups according to their Hcy levels. Baseline risk factors, coronary angiographic findings, length of follow-up, and composite endpoints including cardiac death (CD) and non-fatal myocardial infarction (NFMI) were recorded. 11 propensity score matched analysis was also performed.

RESULTS:

Over a mean follow-up period of 4.4±2.5 years, there were 132 composite endpoints (75 CD and 57 NFMI) with an event rate of 2.3%. Mean Hcy level was 9.9±4.3 µmol/L (normal Hcy 7.9±1.5 µmol/L and elevated Hcy 13.9±5.1 µmol/L). Kaplan-Meier survival analysis showed an association of elevated Hcy level with worse prognosis (p<0.0001). In addition, a multivariate Cox regression analysis showed an association of elevated Hcy level with worse prognosis for both the entire cohort (hazard ratio [HR] 2.077, 95% confidence interval [CI] 1.467-2.941, p<0.0001) and the propensity score matched cohort (HR 1.982, 95% CI 1.305-3.009, p=0.001).

CONCLUSION:

Elevated Hcy level is associated with worse outcomes in Korean patients with CAD.
Subject(s)

Full text: Available Index: WPRIM (Western Pacific) Main subject: Prognosis / Coronary Artery Disease / Risk Factors / Cohort Studies / Follow-Up Studies / Coronary Angiography / Coronary Vessels / Death / Propensity Score / Homocysteine Type of study: Etiology study / Incidence study / Observational study / Prognostic study / Risk factors Limits: Humans / Male Language: English Journal: Korean Circulation Journal Year: 2016 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Prognosis / Coronary Artery Disease / Risk Factors / Cohort Studies / Follow-Up Studies / Coronary Angiography / Coronary Vessels / Death / Propensity Score / Homocysteine Type of study: Etiology study / Incidence study / Observational study / Prognostic study / Risk factors Limits: Humans / Male Language: English Journal: Korean Circulation Journal Year: 2016 Type: Article