Ho Joong Youn
The Catholic University of America
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Featured researches published by Ho Joong Youn.
Cardiovascular Therapeutics | 2016
Jang Ho Bae; Wuon Shik Kim; Moo Sik Lee; Kee Sik Kim; Jeong Bae Park; Ho Joong Youn; Chang Gyu Park; Kyung Soon Hong; Jang Young Kim; Jin Won Jeong; Jong Chun Park; Do Sun Lim; Moo Hyun Kim; Jeong Taek Woo
AIMnIt is still unclear which layer (intima or media) is mainly involved in increased carotid intima-media thickness (CIMT) by aging and also unclear regarding CIMT value suggesting high cardiovascular risk, although 75th percentile value of CIMT is known as a high risk in asymptomatic adults. We sought to find the changes of carotid intima thickness (CIT) and carotid media thickness (CMT) by aging and the 75th percentile value of CIMT in asymptomatic Korean adults.nnnMETHODnThis is an observational cohort study. Carotid ultrasound findings (n=2204 from 12 hospitals) were prospectively collected. The carotid images were sent to Korea Research Institute of Standards and Science for analysis using specialized software which can measure intima and media wall also.nnnRESULTSnMean age was 58.1±13.5xa0years old (52% of men). Pearsons correlation coefficient between age and right CIMT (r=.489, P<.001) and right CMT (r=.482, P<.001) was higher than that between age and right CIT (r=.284, P<.001). Mean right CIMT in male and female was 0.696±0.163 and 0.686±0.167xa0mm (P=.180), and the 75 percentile value was 0.778 and 0.771xa0mm, respectively. Mean right CIT was 0.311±0.069 and 0.303±0.064xa0mm (P=.009), and mean right CMT was 0.391±0.124 and 0.388±0.131xa0mm (P=.694) in male and female, respectively. Left carotid ultrasound findings showed similar to the right one.nnnCONCLUSIONnAn increased CIMT by aging was mainly due to increased CMT rather than CIT in asymptomatic adults. The 75th percentile values of right CIMT were 0.778 and 0.771xa0mm in asymptomatic Korean male and female adults, respectively.
Clinical and Experimental Hypertension | 2012
Hyun Ju Yoon; Youngkeun Ahn; Kye Hun Kim; Jong Chun Park; Jeong Bae Park; Chang Gyu Park; Ho Joong Youn; Dong Ju Choi; Joon-Han Shin; Dong-Woon Kim; Se Joong Rim; Jang Ho Bae; Chong Wook Kim
Although the white-coat effect (WCE) is not rare, its detection is often difficult in treated hypertensive patients. The aim of this study was to elucidate the factors that affect and predict the WCE in treated hypertensive patients in Korea. A total of 1087 outpatients (mean age: 57 ± 10 y; 52% female) checked blood pressure in office and at home. We divided the outpatients into two groups according to the presence or absence of the WCE. Waist circumference was smaller in the WCE group. In addition, in the WCE group, the incidence of diabetes mellitus (DM) was lower, but family history of premature cardiovascular disease was higher. Target organ damage, including damage to the heart, was lower in the WCE group. Pulse pressure (PP) in the clinic was higher in the WCE group and was also positively correlated with a systolic WCE, especially when measured by a doctor (r = 0.511, P < .001). By multivariate regression analysis, PP measured by a doctor independently correlated with systolic WCE (ß = 0.573, P < .001). Our findings suggest that PP measured by a doctor at a clinic may predict the WCE, which can help in the treatment of hypertensive patients.
Heart Rhythm | 2006
Simon Kangavari; Yong Seog Oh; Shengmei Zhou; Ho Joong Youn; Man Young Lee; Wook Sung Jung; Tae ho Rho; Soon Jo Hong; Saibal Kar; Walter F. Kerwin; Charles D. Swerdlow; Eli S. Gang; Donna M. Gallik; Jeffrey S. Goodman; Yii Der Ida Chen; Peng Sheng Chen
Circulation | 2011
Sung-Ji Park; Jeong Bae Park; Dong-Ju Choi; Ho Joong Youn; Chang Gyu Park; Young Keun Ahn; Joon-Han Shin; Dong-Woon Kim; Se Joong Rim; Jang Ho Bae; Hyun-Young Park
Journal of the Korean Society of Echocardiography | 1999
Ho Joong Youn; Kgu Bo Choi; Hee Yeol Kim; Tai Ho Rho; Chong Jin Kim; Eun Ju Cho; Seung Won Jin; Hyou Young Rhim; Ji Won Park; Heu Kyung Jeon; Jang Seong Chae; Jae Hyung Kim; Soon Jo Hong
Journal of The Korean Geriatrics Society | 2010
Sung-Ji Park; Jeong Bae Park; Dong-Ju Choi; Ho Joong Youn; Chang Gyu Park; Young Keun Ahn; Joon-Han Shin; Dong-Woon Kim; Se Joong Rim
International Journal of Cardiology | 2009
JuHee Lee; Jang Whan Bae; M.C. Cho; Jung Bae Park; Chulhwan Park; Ho Joong Youn; Dong-Joo Choi; Joon-Han Shin; S.J. Rim; Y.K. Ahn; Jang-Ho Bae; Dong-Woon Kim
Korean Circulation Journal | 2003
Ho Joong Youn
Journal of the Korean Society of Echocardiography | 1999
Ho Joong Youn
Journal of the Korean Society of Echocardiography | 1999
Ho Joong Youn; Kgu Bo Choi; Hee Yeol Kim; Hyou Young Rhim; Ji Won Park; Heu Kyung Jeon; Jang Seong Chae; Jae Hyung Kim; Soon Jo Hong; Keon Woong Moon; Wook Sung Chung; In Soo Park