Hyunwook Kim1, Kyoung Hoon Kim2, Song Vogue Ahn3, Shin-Wook Kang4, Tae-Hyun Yoo4, Hyeong Sik Ahn5, Hoo Jae Hann6, Shina Lee7, Jung-Hwa Ryu7, Mina Yu7, Seung-Jung Kim7, Duk-Hee Kang7, Kyu Bok Choi7, Dong-Ryeol Ryu8. 1. Department of Internal Medicine, Wonkwang University College of Medicine Sanbon Hospital, Gunpo, Republic of Korea. 2. Department of Public Health, Graduate School, Korea University, Seoul, Republic of Korea. 3. Department of Preventive Medicine, Wonju College of Medicine, Yonsei University, Wonju, Republic of Korea. 4. Department of Internal Medicine, College of Medicine, Yonsei University, Seoul, Republic of Korea. 5. Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Republic of Korea. 6. Ewha Medical Research Institute, School of Medicine, Ewha Womans University, Seoul, Republic of Korea. 7. Department of Internal Medicine, School of Medicine, Ewha Womans University, Seoul, Republic of Korea. 8. Department of Internal Medicine, School of Medicine, Ewha Womans University, Seoul, Republic of Korea. Electronic address: drryu@ewha.ac.kr.
Abstract
BACKGROUND: Dialysis patients are at high risk for cardiovascular diseases, but until now there have been no detailed analyses of the incidences among Asian patients initiating dialysis. The aims of this study were to determine the incidence rates of major adverse cardiac and cerebrovascular events (MACCE) and to compare them between incident HD patients and PD patients. METHODS: We included all patients who had started dialysis between January 1, 2005 and December 31, 2008 in Korea, and analyzed 30,279 eligible patients [22,892 hemodialysis (HD) patients and 7387 peritoneal dialysis (PD) patients] by intention-to-treat. Median follow-up was 21.5 months. RESULTS: The crude incidence rates were as follows: MACCE, 182 per 1000 patient-years (PY); major adverse cardiac events (MACE), 138/1000 PY; all-cause mortality, 116/1000 PY; non-fatal acute myocardial infarction (AMI), 18/1000 PY; target vessel revascularization (TVR), 17/1000 PY; and non-fatal stroke, 60/1000 PY. When comparing all baseline covariate-adjusted relative risks between HD and PD patients, HD is overall superior to PD in terms of MACCE. Further examined by each endpoint, all-cause mortality, non-fatal AMI, and TVR occurred significantly more frequently in patients on PD than in those on HD, whereas non-fatal hemorrhagic stroke occurred significantly more frequently in patients on HD than in those on PD. CONCLUSIONS: The incidence of MACCE may be different from Western dialysis patients. HD is overall superior to PD in terms of MACCE as an initial dialysis modality. Underlying mechanisms differentially affecting cardiovascular outcomes by dialysis modality remain to be further elucidated.
BACKGROUND: Dialysis patients are at high risk for cardiovascular diseases, but until now there have been no detailed analyses of the incidences among Asian patients initiating dialysis. The aims of this study were to determine the incidence rates of major adverse cardiac and cerebrovascular events (MACCE) and to compare them between incident HDpatients and PDpatients. METHODS: We included all patients who had started dialysis between January 1, 2005 and December 31, 2008 in Korea, and analyzed 30,279 eligible patients [22,892 hemodialysis (HD) patients and 7387 peritoneal dialysis (PD) patients] by intention-to-treat. Median follow-up was 21.5 months. RESULTS: The crude incidence rates were as follows: MACCE, 182 per 1000 patient-years (PY); major adverse cardiac events (MACE), 138/1000 PY; all-cause mortality, 116/1000 PY; non-fatal acute myocardial infarction (AMI), 18/1000 PY; target vessel revascularization (TVR), 17/1000 PY; and non-fatal stroke, 60/1000 PY. When comparing all baseline covariate-adjusted relative risks between HD and PDpatients, HD is overall superior to PD in terms of MACCE. Further examined by each endpoint, all-cause mortality, non-fatal AMI, and TVR occurred significantly more frequently in patients on PD than in those on HD, whereas non-fatal hemorrhagic stroke occurred significantly more frequently in patients on HD than in those on PD. CONCLUSIONS: The incidence of MACCE may be different from Western dialysis patients. HD is overall superior to PD in terms of MACCE as an initial dialysis modality. Underlying mechanisms differentially affecting cardiovascular outcomes by dialysis modality remain to be further elucidated.