• Title/Summary/Keyword: IHD

Search Result 42, Processing Time 0.02 seconds

A Study on Quantifying the Societal Benefits Attributed to IHD Deployments (댁내 전력정보표시장치(IHD) 보급에 따른 사회적 혜택 정량화 연구)

  • Jung, Nam-Joon;Yang, Il-Kwon;Song, Jae-Ju;Choi, Seong-Hwan;Ko, Jong-Min
    • The Transactions of The Korean Institute of Electrical Engineers
    • /
    • v.59 no.9
    • /
    • pp.1587-1592
    • /
    • 2010
  • In this paper, the beneficial effects of IHD deployments on the society were investigated, which is one of the enabling technologies related to the AMI investments. By focusing on the energy use reduction due to the feedback information from IHD, various favorable effects can be induced and quantified. The societal benefits should make a reasonable contribution to ensure that IHD should be prerequisite to the AMI deployments. In future, the quantification methodology would be applied to characterize and estimate the time-varying rate based demand response programs.

An Energy Efficient RF Protocol Structure for a Large-Scale In-Home Display Deployment (대규모 In-Home Display 보급을 위한 에너지 효율적 RF 통신 프로토콜 체계)

  • Lee, Seung-Min;Son, Sung-Yong
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
    • /
    • v.4 no.1
    • /
    • pp.53-60
    • /
    • 2011
  • In-Home Display (IHD) is one of the most popular ways to induce voluntary customer participation in energy savings. Various communication technologies are used for recent IHD implementations, but most IHD systems are designed for each house because of their limitations such as communication coverage area and operation complexity. In this study, 400MHz RF communication is used for economical large-scale deployment of IHDs especially for apartment complexes that represent typical residentioal environment in Korea. Since it is essential to use internal batteries to increase the usability of IHD, the frequent changes of them should be avoided. By dividing communication data into 3 types such as common data, long term data, and short term data depending on their update periods, energy efficient communication protocol is designed and proposed. In result, the quantity of data and the battery consumption of IHD are reduced to 23.4% and 31.5% each without harming service quality.

Associations of Serum Lipid Profiles with Incidence of Ischemic Heart Diseases in Korean Adults: Retrospective Cohort Study (우리나라 성인에서 혈청 지질성분비가 허혈성 심장질환 발생에 미치는 위험도 평가: 코호트 연구)

  • Shin, Sook-Hee;Lee, Tae-Yong
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.13 no.5
    • /
    • pp.2219-2231
    • /
    • 2012
  • This study conducted to investigate incidence rate and association of serum lipid profiles with incidence of ischemic heart disease. Study subjects consisted of 417,642 adults aged 30 years and over, who underwent physical examination and responded to questionnaire from health examination center of 19 university general hospitals. Hazard ratio of risk factor for ischemic heart disease (IHD) were calculated by Cox's proportional hazard regression model adjusted for ages, BMI and lifestyle (drinking, smoking and exercising). For TC/HDL ratio, hazard ratio of IHD in male increased from 1.21 times to 1.84 times increase with TC/HDL ratio, and that in female also increased from 1.26 times to 1.86 times. For TG/HDL ratio, hazard ratio of IHD in male increased from 1.17 times to 1.49 times increase with TG/HDL ratio, and that in female also increased from 1.42 times to 1.97 times. For LDL/HDL ratio, hazard ratio of IHD in male increased from 1.26 times to 1.82 times increase with LDL/HDL ratio, and that in female also increased from 1.26 times to 1.68 times. In conclusion serum lipid indexes are the significant risk factors for cardiovascular diseases. The higher the concentration of TC, LDL and TG is, the lower the concentration of HDL is, hazard ratio for IHD increased. Ratio of TC/HDL, TG/HDL and LDL/HDL were also verified to be significant risk factors for IHD.

A Study of Prescription Analysis on Patients with Ischemic Heart Disease and Evaluation of Antihypertensive Drug Use in General Hospital (종합병원 허혈성 심장질환 환자의 항고혈압약제 사용 현황 및 평가)

  • Moon, Kyoung-Sil;Song, Hyun-Ju;Sohn, Uy-Dong
    • YAKHAK HOEJI
    • /
    • v.51 no.5
    • /
    • pp.336-342
    • /
    • 2007
  • Treatment of hypertension is important in reducing death and attack rates by Ischemic heart disease (IHD). The purposes of this study are to investigate recent prescriptions for patients with IHD and to evaluate antihypertensive drug use. On the basis of the guidelines proposed by Seventh Report of the Joint National Committee on prevention, detection, evaluation, and treatment of high blood pressure, we analyzed prescriptions of antihypertensive drugs for patients with IHD. It is necessary to set up new guideline for appropriate treatment to lower death and attack rates for patients with IHD.

A Case Study of one Patient who has a ischemic heart disease(IHD) (허혈성 심질환(Ischemic heart disease) 환자(患者)의 사상(四象) 처방(處方) 투여 1례(例)에 대한 임상보고(臨床報告))

  • Kim, Hye-Won;Song, Jeong-Mo;Kim, Jeong-Ho
    • Journal of Sasang Constitutional Medicine
    • /
    • v.14 no.2
    • /
    • pp.125-131
    • /
    • 2002
  • An ischemic heart disease(IHD) is a anemic state of heart caused by disproportion between heart's demand and supply of oxygen. A patient who has this IHD feels serious chest pain called angina pectoris. In a keen condition it leads to a necrosis of heart muscles, known as myocardial infarction. In an ischemic heart disease the ECG waves gives us useful information of patients' heart. And CK(creatine kinase) in serum and Troponin T are the principal factors in diagnosis of IHD. In this study, the IHD patient classified by Sasang Constitutional Medicine had a notable medical effects. The symptoms of patient are disappeared and waves of ECG is closed to normal. The result of CK in serum is also recovered. So we report the healing process and results of this patient in this study.

  • PDF

The Magnitude of Mortality from Ischemic Heart Disease Attributed to Occupational Factors in Korea - Attributable Fraction Estimation Using Meta-analysis

  • Ha, Jae-Hyeok;Kim, Soo-Geun;Paek, Do-Myung;Park, Jung-Sun
    • Safety and Health at Work
    • /
    • v.2 no.1
    • /
    • pp.70-82
    • /
    • 2011
  • Objectives: Ischemic heart disease (IHD) is a major cause of death in Korea and known to result from several occupational factors. This study attempted to estimate the current magnitude of IHD mortality due to occupational factors in Korea. Methods: After selecting occupational risk factors by literature investigation, we calculated attributable fractions (AFs) from relative risks and exposure data for each factor. Relative risks were estimated using meta-analysis based on published research. Exposure data were collected from the 2006 Survey of Korean Working Conditions. Finally, we estimated 2006 occupation-related IHD mortality. Results: For the factors considered, we estimated the following relative risks: noise 1.06, environmental tobacco smoke 1.19 (men) and 1.22 (women), shift work 1.12, and low job control 1.15 (men) and 1.08 (women). Combined AFs of those factors in the IHD were estimated at 9.29% (0.3-18.51%) in men and 5.78% (-7.05-19.15%) in women. Based on these fractions, Korea's 2006 death toll from occupational IHD between the age of 15 and 69 was calculated at 353 in men (total 3,804) and 72 in women (total 1,246). Conclusion: We estimated occupational IHD mortality of Korea with updated data and more relevant evidence. Despite the efforts to obtain reliable estimates, there were many assumptions and limitations that must be overcome. Future research based on more precise design and reliable evidence is required for more accurate estimates.

Two cases of Patients with Nonspecific Symptoms Diagnosed as Ischemic Heart Disease (비특이적인 증상을 나타내는 허혈성(虛血性) 심질환(心疾患) 진단 2례)

  • Baik, Jong-Woo;Jung, Ki-Yong;Hsia, Yu-Chun;Park, Jong-Hyeong;Jeon, Chan-Yong;Choi, You-Kyung
    • The Journal of Internal Korean Medicine
    • /
    • v.29 no.4
    • /
    • pp.1130-1137
    • /
    • 2008
  • Objectives : Oriental medical doctors usually use the three-finger pulse diagnosis method to observe disease. Since it is difficult to diagnose ischemic heart disease (IHD) objectively by this diagnostic method, we performed the study to diagnose it as soon as possible by using Yuk Bu Jung Wee Jin Mac(六部定位診脈) and electrocardiogram(ECG). Methods : Patients who had abdominal discomfort were observed by Yuk Bu Jung Wee Jin Mac(六部定位診脈) and we presumed they had heart disease and checked them with electrocardiogram(ECG). Results : We diagnosed it early by using Yuk Bu Jung Wee Jin Mac(六部定位診脈) and electrocardiogram (ECG). Conclusions : The study suggests that it is easy to diagnose IHD early using Yuk Bu Jung Wee Jin Mac(六部定位診脈) and ECG. More data related to IHD is needed.

  • PDF

The relative risk of major risk factors of ischemic heart disease (주요 위험요인별 허혈성심질환 사망위험도 분석)

  • Ko, Min-Jung;Han, Jun-Tae
    • Journal of the Korean Data and Information Science Society
    • /
    • v.21 no.2
    • /
    • pp.201-209
    • /
    • 2010
  • Due to the dramatic increase of mortality from ischemic heart disease (IHD) during the last decade, it is highly warranted to present the effective prevention strategy. Therefore this study identified the major risk factors of IHD over 10 years of follow-up among 2,268,018 participants of National Health Insurance Exam in 1996 with Cox proportional hazard model. In men, BMI, blood pressure, smoking were significantly associated with IHD, whereas hypertension, perceived health status and ${\gamma}$-GTP were related with IHD in women.

Recent Research Trends of Sayeok-tang Used in Ischemic Heart Disease (허혈성 심질환에 활용된 사역탕(四逆湯)의 최신 연구 동향)

  • Jang, Il-Woong;Hong, Jun-yeong;Lee, Soong-in
    • 대한상한금궤의학회지
    • /
    • v.13 no.1
    • /
    • pp.1-19
    • /
    • 2021
  • Purpose : Sayeok-tang (Sini decoction, SND) is a cold-dispelling formula used for cold deficiency syndrome and is composed of Aconiti Lateralis Radix Preperata, Zingiberis Rhizoma, and Glycyrrhizae Radix et Rhizoma. It is used for diseases such as myocardial infarction, heart failure, acute and chronic gastroenteritis, and gastric effusion. This study proposes the possibility of expansion of basic research and clinical applications for ischemic heart disease (IHD) through systematic analysis of domestic and foreign studies on SND. Methods : We collected studies within the last 10 years on the use of SND in IHD and excluded those lacking relevance. Selected studies were classified by research method and the main themes of the studies were analyzed for each classification. Result: Out of 15 studies, there were 5 animal studies, 8 metabolite analyses in animals, 1 in vitro study, and 1 systematic review. Our review suggests that SND may be used as an adjuvant to nitroglycerin and percutaneous transluminal coronary angioplasty, and may improve symptoms and quality of life of patients with IHD. Myocardial protective effects through antioxidant, anti-inflammatory, anti-apoptotic, and anti-hypertensive actions were confirmed through these studies. Effects on carbohydrate, protein, and lipid metabolism were also reported. Conclusions : This study suggests that SND has potential as a treatment for IHD.

The Trend and Issues of Nursing Research Related to Ischemic Heart Disease Published in Korea (허혈성심질환 관련 국내 간호연구 동향)

  • Lee, Jong-Yul;Lee, Hyang-Yeon
    • Journal of East-West Nursing Research
    • /
    • v.8 no.1
    • /
    • pp.89-102
    • /
    • 2003
  • This study attempted to analyze the trend of studies related to IHD(Ischemic Heart Disease). This article reviewed 102 researches on IHD conducted from 1980 to 2003, by examining them according to their characteristics, such as sources by publication period, research design, nursing intervention, outcome of experimental research, and theme of qualitative research. The results were as follows : 1. The number of studies related to IHD has steadily increased year by year since 1985, and that of the articles was the highest during the post-2000 period. Especially, the majority of researches has published since 1995. 2. The 69 studies were degree of all 102 studies related to IHD, and the majority of articles' authors belonged to graduate school. Thirty three studies were non-degree articles. As for study design, the number of quantitative studies were 99 and that of qualitative studies were 3. Non-experimental research design were largely survey and correlational study. 3. Non-experimental study makes up a high proportion of the quantitative study. The most of experimental studies were accomplished after 2000. The main subjects were patients, chart records and general subjects. The majority number of subjects was like this : while the number of non-experimental study was between 51 and 100, that of experimental study was below 50. The number of subject of qualitative study is like this : the number of phenomenology study was 21 and 11, and that of case study is 14. 4. Nursing interventions used in the experimental study comprised teaching program, cardiac rehabilitation program, massage, relaxation, music therapy and providing of sense information. And the most nursing intervention effects included physiological effect, increased self-efficacy, relieved pain and increased quality of life. Most studies proved to have the affirmative effects. 5. The number of qualitative studies related to IHD is like this : the number of degree articles was 2 and that of non-degree articles was 1. Its themes included resources of hope, the experience of coronary artery angiography and the experience of admission at ICU(Intensive Care Unit).

  • PDF