Ki Dong Yoo

Dr. Ki Dong Yoo

orcid

Research Focus & Metrics

Academic Career Length

17Years (2010-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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13 April 2017 in Lipids in Health and Disease
Verified
Journal Article
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SCSeon-Ah Cha
Seon-Ah Cha
YPYONG-MOON ("MARK") PARK
YONG-MOON ("MARK") PARK
JYJae-Seung Yun
Jae-Seung Yun
TLTae-Seok Lim
Tae-Seok Lim
KSKi-Ho Song
Ki-Ho Song
SKSeung-Hyun Ko
Seung-Hyun Ko
Previous studies suggest that dipeptidyl peptidase-4 (DPP-4) inhibitors and sodium glucose cotransporter 2 (SGLT2) inhibitors have different effects on the lipid profile in patients with type 2 diabetes. We investigated the effects of DPP-4 inhibitors and SGLT2 inhibitors on the lipid profile in patients with type 2 diabetes. From January 2013 to December 2015, a total of 228 patients with type 2 diabetes who were receiving a DPP-4 inhibitor or SGLT2 inhibitor as add-on therapy to metformin and/or a sulfonylurea were consecutively enrolled. We compared the effects of DPP-4 inhibitors and SGLT2 inhibitors on the lipid profile at baseline and after 24 weeks of treatment. To compare lipid parameters between the two groups, we used the analysis of covariance (ANCOVA). A total of 184 patients completed follow-up (mean age: 53.1 ± 6.9 years, mean duration of diabetes: 7.1 ± 5.7 years). From baseline to 24 weeks, HDL-cholesterol (HDL-C) levels were increased by 0.5 (95% CI, −0.9 to 2.0) mg/dl with a DPP-4 inhibitor and by 5.1 (95% CI, 3.0 to 7.1) mg/dl with an SGLT2 inhibitor (p = 0.001). LDL-cholesterol (LDL-C) levels were reduced by 8.4 (95% CI, −14.0 to -2.8) mg/dl with a DPP-4 inhibitor, but increased by 1.3 (95% CI, −5.1 to 7.6) mg/dl with an SGLT2 inhibitor (p = 0.046). There was no significant difference in the mean hemoglobin A1c (8.3 ± 1.1 vs. 8.0 ± 0.9%, p = 0.110) and in the change of total cholesterol (TC) (p = 0.836), triglyceride (TG) (p = 0.867), apolipoprotein A (p = 0.726), apolipoprotein B (p = 0.660), and lipoprotein (a) (p = 0.991) between the DPP-4 inhibitor and the SGLT2 inhibitor. The SGLT2 inhibitor was associated with a significant increase in HDL-C and LDL-C after 24 weeks of SGLT2 inhibitor treatment in patients with type 2 diabetes compared with those with DPP-4 inhibitor treatment in this study. This study was conducted by retrospective medical record review.

1 August 2017 in Clinical Interventions in Aging
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Journal Article
Open access
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SLSu Nam Lee
Su Nam Lee
MJMin Seop Jo
Min Seop Jo
KYKi Dong Yoo
Ki Dong Yoo
Purpose: Extracorporeal membrane oxygenation (ECMO) is used to treat patients in critical condition with cardiogenic shock. However, few studies have examined the effect of old age in ECMO survival. This study analyzed the impact of age on ECMO survival of patients with cardiac failure, and analyzed predictive factors for survival according to age. Materials and methods: We retrospectively reviewed the medical records of 95 patients who required veno-arterial (V-A) ECMO between May 2009 and May 2016 at a single center. Patients were classified into “age ≥65” (n=48, 50.5%) and “age <65” (n=47, 49.5%) groups. Results: The age ≥65 group was significantly associated with increased mortality (HR: 1.715; 95% CI =1.038–2.831) at 90 days after ECMO initiation. These associations were attenuated and did not retain statistical significance after adjustment for comorbidities (HR: 1.485; 95% CI =0.844–2.614). To determine predictive factors of mortality, multivariate logistic analysis revealed that age ≥65 (OR 5.750; 95% CI [1.508–21.920]; P=0.010), low pre-ECMO serum bicarbonate (OR 0.884; 95% CI [0.788–0.991]; P=0.035), and high pre-ECMO serum creatinine (OR 4.546; 95% CI [1.021–20.239]; P=0.047) were significantly associated with survival to 90 days. By analyzing two groups separately, high pre-ECMO serum potassium level (OR 3.552; 95% CI [1.023–12.331]; P=0.046) was the only independent predictor in patients aged <65 years while low Glasgow Coma Scale score (OR 0.698; 95% CI [0.478–1.019]; P=0.063) showed a considerable trend toward significance in patients aged ≥65. Conclusion: Older age was not an independent risk factor for mortality at 90 days among V-A ECMO patients. In addition, our study provides understanding of the differences in predictive factors for ECMO survival according to age. Pre-ECMO laboratory findings and mental status can assist clinicians in the prediction of a patient’s prognosis.

7 July 2021 in Medicina
Verified
Journal Article
Open access
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KLKyusup Lee
Kyusup Lee
JJJi-Hoon Jung
Ji-Hoon Jung
MLMyunhee Lee
Myunhee Lee
DKDaewon Kim
Daewon Kim
MPMahn-Won Park
Mahn-Won Park
SHSung-Ho Her
Sung-Ho Her
Background and Objectives: Data is still limited regarding clinical outcomes of rotational atherectomy (RA) after percutaneous coronary intervention. We sought to evaluate clinical outcomes of RA. Materials and Methods: This multi-center registry enrolled patients who underwent RA during PCI from nine tertiary centers in Korea between January 2010 and October 2019. The primary endpoint was target-vessel failure (TVF; the composite outcome of cardiac death, target-vessel spontaneous myocardial infarction, or target-vessel revascularization). Results: Of 540 patients (583 lesions), the mean patient age was 71.4 ± 0.4 years, 323 patients (59.8%) were men, and 305 patients (56.5%) had diabetes mellitus. Technical success rate was 96.4%. In-hospital major adverse cerebral and cardiac events occurred in 63 cases (10.8%). At 1.5 years, 72 (16.0%) of TVFs were occurred. We evaluated independent predictors of TVF, which included current smoker (hazard ratio (HR), 1.92; 95% confidence interval (CI), 1.17–3.16; p = 0.01), chronic renal disease (HR, 1.87; 95% CI, 1.14–3.08; p = 0.013), history of cerebrovascular attack (HR, 2.14; 95% CI, 1.24-3.68; p = 0.006), left ventricle ejection fraction (HR, 0.98; 95% CI, 0.97–0.999; p = 0.037), and left main disease (HR, 1.94; 95% CI, 1.11–3.37; p = 0.019). Conclusions: From this registry, we demonstrated acceptable success rates, in-hospital and mid-term clinical outcomes of RA in the DES era.

1 August 2019 in Journal of Cardiology
Verified
Journal Article
Closed access
SLSu Nam Lee
Su Nam Lee
DMDonggyu Moon
Donggyu Moon
KMKeon-Woong Moon
Keon-Woong Moon
KYKi Dong Yoo
Ki Dong Yoo

20 August 2024 in Journal of the American Heart Association
Verified
Journal Article
Open access
KKKyung An Kim
Kyung An Kim
SKSang Hyun Kim
Sang Hyun Kim
KLKwan Yong Lee
Kwan Yong Lee
AYAndrew H. Yoon
Andrew H. Yoon
BHByung‐Hee Hwang
Byung‐Hee Hwang
KCKiyuk Chang
Kiyuk Chang
Background: Little is known about the characteristics and long‐term clinical outcomes of patients with heart failure with improved ejection fraction (HFimpEF) after acute myocardial infarction. Methods and Results: From a multicenter, consecutive cohort of patients with acute myocardial infarction undergoing percutaneous coronary intervention, patients with an initial echocardiogram with left ventricular ejection fraction ≤40% and at least 1 follow‐up echocardiogram after 14 days and within 2 years of the initial event were considered for analyses. HFimpEF was defined as an initial left ventricular ejection fraction ≤40% and serial left ventricular ejection fraction >40% with an increase of ≥10% from baseline at follow‐up. Independent factors predicting HFimpEF were identified, and clinical outcomes of patients with HFimpEF were compared with those without improvement. From an initial cohort of 10 719 patients with acute myocardial infarction, 191 patients with HFimpEF and 256 patients with non‐HFimpEF who had initial and follow‐up echocardiographic data were analyzed. The median follow‐up duration was 4.5 (interquartile range, 2.9–5.0) years. The factors predicting HFimpEF were lower peak creatine kinase myocardial band, smaller left ventricular dimensions, lower ratio between early mitral inflow velocity and mitral annular early diastolic velocity ′, and the use of β blockers or renin–angiotensin system blockers at discharge. HFimpEF was associated with a significantly decreased risk of all‐cause death compared with non‐HFimpEF (hazard ratio, 0.377 [95% CI, 0.234–0.609]; P <0.001). In 2‐year landmark analysis, these findings were consistent not only before but also after the landmark point. Similar findings were true for cardiovascular death and admission for heart failure. Conclusions: Patients with HFimpEF after acute myocardial infarction showed distinct clinical and echocardiographic characteristics and were associated with better long‐term clinical outcomes. Registration: URL: https://www.clinicaltrials.gov ; Unique Identifier: NCT02806102.

21 October 2020 in Journal of Clinical Medicine
Verified
Journal Article
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JRJi Woong Roh
Ji Woong Roh
SLSungmin Lim
Sungmin Lim
YHYoungdeok Hwang
Youngdeok Hwang
KLKwan Yong Lee
Kwan Yong Lee
ECEun Ho Choo
Eun Ho Choo
KCKiyuk Chang
Kiyuk Chang
The early and late ischemic and bleeding clinical outcomes according to baseline platelet count after percutaneous coronary intervention (PCI) in patients with acute myocardial infarction (AMI) remain unclear. Overall, 10,667 patients from the Cardiovascular Risk and identification of potential high-risk population in AMI (COREA-AMI) I and II registries were classified according to the following universal criteria on baseline platelet counts: (1) moderate to severe thrombocytopenia (platelet < 100 K/μL, n = 101), (2) mild thrombocytopenia (platelet = 100~149 K/μL, n = 631), (3) normal reference (platelet = 150~450 K/μL, n = 9832), and (4) thrombocytosis (platelet > 450 K/μL, n = 103). The primary endpoint was the occurrence of major adverse cardiovascular events (MACE). The secondary outcome was Bleeding Academic Research Consortium (BARC) 2, 3, and 5 bleeding. After adjusting for confounders, the moderate to severe thrombocytopenia (HR, 2.03; 95% CI, 1.49–2.78); p < 0.001), mild thrombocytopenia (HR, 1.15; 95% CI, 1.01–1.34; p = 0.045), and thrombocytosis groups (HR, 1.47; 95% CI, 1.07–2.03; p = 0.019) showed higher 5-year MACE rates than the normal reference. In BARC 2, 3, and 5 bleeding outcomes, the bleedings rates were higher than the normal range in the moderate to severe thrombocytopenia (HR, 2.18; 95% CI, 1.36–3.49; p = 0.001) and mild thrombocytopenia (HR, 1.41; 95% CI, 1.12–1.78; p = 0.004) groups. Patients with AMI had higher 5-year MACE rates after PCI if they had lower- or higher-than-normal platelet counts. Thrombocytopenia revealed higher early and late bleeding rates whereas thrombocytosis showed long-term bleeding trends, although these trends were not statistically significant.