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거짓비늘증후군에서 혈청 호모시스테인 농도와 관상동맥심질환의 위험도 분석

Analysis of Serum Homocysteine and Risk of Coronary Heart Disease in Patients with Pseudoexfoliation Syndrome

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목적: 거짓비늘증후군 환자에서 혈청 호모시스테인 농도를 조사하여 관상동맥심질환의 위험도와 연관성을 알아보고자 하였다. 대상과 방법: 2013년 3월부터 2013년 9월까지 영남대학교병원 안과 외래를 방문한 거짓비늘증후군 환자 37명과 비슷한 연령대의 거짓비늘증후군이 없는 환자(대조군) 59명을 대상으로 전향적 연구를 시행하였다. 거짓비늘증후군 환자와 대조군에서 정맥혈을 채취하여 측정한 혈청 호모시스테인 농도를 비교 분석하였다. 프래밍햄 위험점수(Framingham risk score)를 이용하여 산출한 관상동맥심질환 10년 위험도를 두 군 간에 비교하였다. 아울러 혈청 호모시스테인 농도와 관상동맥심질환 10년 위험도 사이의 상관관계를 조사하였다. 결과: 거짓비늘증후군 환자의 평균 혈청 호모시스테인 농도는 13.3 ± 6.8 μmol/L였으며 대조군(10.0 ± 5.2 μmol/L)에 비하여 통계적으로 유의하게 높았다(p=0.009). 관상동맥심질환 10년 위험도가 20% 초과인 고위험군의 비율은 거짓비늘증후군 환자에서 21.4%로, 대조군의 4.4%에 비하여 통계적으로 유의하게 높았다(p=0.048). 거짓비늘증후군 환자와 대조군 전체에서, 혈청 호모시스테인 농도와 산출된 관상동맥심질환 10년 위험도 사이에는 양의 상관관계를 보였다(r=0.578, p<0.001). 결론: 거짓비늘증후군 환자에서 혈청 호모시스테인 농도가 높고, 관상동맥심질환 위험도가 큰 것으로 나타났다. 따라서 고호모시스테인혈증을 보이는 거짓비늘증후군 환자에서 관상동맥심질환의 발생을 예방하기 위한 노력이 필요할 것으로 생각된다.

Abstract

Purpose: To investigate levels of serum homocysteine in patients with pseudoexfoliation syndrome and the association between serum homocysteine levels and risk of coronary heart disease. Methods: From March 2013 to September 2013, 37 patients with pseudoexfoliation syndrome and 59 age-matched patients (control group) were enrolled in this prospective study. Serum homocysteine levels were compared between the 2 groups. We compared the estimated 10-year risk of coronary heart disease based on Framingham risk score between the 2 groups. Additionally, we analyzed correlations between risk of coronary heart disease and serum homocysteine levels. Results: The mean homocysteine level of patients with pseudoexfoliation syndrome was significantly higher than the control group (13.3 ± 6.8 μmol/L vs. 10.0 ± 5.2 μmol/L, p = 0.009). The rate of high risk defined as a 10-year coronary heart disease risk >20% in the patients with pseudoexfoliation syndrome was significantly higher than in the control group (21.4% vs. 4.4%, p = 0.048). Correlation between serum homocysteine levels and estimated 10-year risk of coronary heart disease was statistically significant (r = 0.578, p < 0.001). Conclusions: Hyperhomocysteinemia and high risk of coronary heart disease were observed in patients with pseudoexfoliation syndrome. Therefore, we suggest efforts to prevent coronary heart disease in pseudoexfoliation syndrome patients with hyperhomocysteinemia are necessary.

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