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Clinical characteristics of COPD patients suspected of left ventricular diastolic dysfunction
( Sung Kyoung Kim ),( Seung Hoon Kim ),( Shin Young Kim ),( So Hyang Song ),( Chi Hong Kim ) 대한결핵 및 호흡기학회 2018 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.126 No.-
Background: Although left ventricular diastolic dysfunction (LVDD) is a frequent condition in COPD, there is little study about this. The aim of this study is to evaluate the factors associated with suspecting LVDD in COPD patients. Methods: A cohort of consecutive COPD outpatients was studied. Patients with cor pulmonale, cardiovascular disease, or any disease need to take diuretics except LVDD were excluded. Among the remaining patients, patients who underwent echocardiography were enrolled. These patients were divided into two groups based on diuretics prescription over 1 year: suspecting LVDD group (patients receiving diuretics) and non-LVDD group (patients not receiving diuretics). Results: 141 patients were enrolled, of whom 80 (56.7%) were received diuretics (suspecting LVDD group). In univariate analysis, the significant factors associated with suspecting LVDD were age, FVC%, E/E’, DM, ACO, ICS use, methylxanthine use, number of major acute exacerbation, and cardiomegaly. Multivariate analysis identified age, E/E’, DM, ACO, ICS use, methylxanthine use, and cardiomegaly as significantly independent factors associated with suspecting LVDD. ROC curve analysis determined cutoff values of 75 for age and 10.75 for E/E’. In suspecting LVDD group, a tendency to decrease methylxanthine use after diuretics prescription was identified. Conclusion: The use of diuretics may be considered in COPD patients with DM, ACO, cardiomegaly, age over 75 years old, and E/E’ over 10.75. Further studies would be required to readjust the criteria of E/E' for LVDD diagnosis in COPD.
고혈압 환자에서 좌심실 중벽 기능과 경동맥 내막-중막 두께와의 상관관계
이경헌 ( Kyung Hun Lee ),최여원 ( Yeo Won Choi ),최수희 ( Soo Hee Choi ),이광호 ( Kwang Ho Lee ),서기우 ( Ki Woo Seo ),김은영 ( Eun Young Kim ),이광제 ( Kwang Je Lee ),김상욱 ( Sang Wook Kim ),김태호 ( Tae Ho Kim ),김치정 ( Chee J 대한내과학회 2008 대한내과학회지 Vol.74 No.4
Background/Aims: In hypertensive patients, LV ejection fraction may be normal or high, thus limiting assessment of prognosis. This has led to a growing body of research using LV midwall fractional shortening (MWS) instead. The current study aims to assess LV midwall function in hypertension patients and to study its correlation with the intima-media thickness (IMT) of the carotid artery. Methods: Echocardiography and ultrasonography of the carotid artery were conducted to establish a group of hypertension patients without major complications (n=136) and a control group (n=48). LV MWS was determined using two cylindrical models, and the IMT was measured. Results: Compared with normotensive subjects, hypertensive adults exhibited higher LV mass index and lower LV MWS. A statistically significant correlation was found between the LV MWS and the average IMT in hypertension patients (r=-0.41). There was also a significant negative correlation among the maximum IMT (r=-0.40), LV mass index (r=-0.32), age (r=-0.31), and systolic blood pressure (r=-0.22). Regarding the prevalence of plaque in the carotid artery, the stage 1 hypertension group exhibited 16.7% prevalence, and the stage 2 hypertension group 32.9% prevalence, thereby showing far higher figures than the control group`s 4.2%. Conclusions: The LV MWS in hypertension patients underwent a statistically significant decrease, and the correlation between LV MWS and the IMT of the carotid artery was found to be high compared with the general blood pressure index. LV MWS can be used as an indicator to assess the prognosis of hypertension patients.(Korean J Med 74:376-384, 2008)