• Title/Summary/Keyword: Blood hemoglobin

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An Improvement of Signal Processing of Pulse Oximeter Using Modulization (모듈화를 이용한 펄스 옥시메터의 신호처리 개선)

  • 이한욱;이주원;이종희;조원래;장두봉;김영일;이건기
    • Proceedings of the IEEK Conference
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    • 2000.06e
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    • pp.117-120
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    • 2000
  • Pulse oximetry is a well established non-invasive optical technique for monitoring the SpO$_2$ during anaesthesia, recovery and intensive care. Pulse oximeters determine the oxygen saturation level of blood by measuring the light absorption of arterial blood. The sensors consists of red and infrared light sources and photodetectors. In the measurement of the hemoglobin oxygen saturation, conventional method has required the technique of filtering of remove the noise, and of complex signal processing algorithm. So much time have required to signal processing. In this research, we separate AC signal and DC signal in the stage of signal detection. We filter the noise from each signal and convert A/D. We obtain the SpO$_2$ using the DSP algorithm.

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Design of blood oxygen concentration and heart beat rate measuring system using photo diode (광다이오드를 이용한 산소포화도 및 맥박 측정기 설계)

  • Kim, In-Geon;Nam, Tae-Hun;Chung, Ik-Joo
    • Journal of Industrial Technology
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    • v.33 no.A
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    • pp.49-54
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    • 2013
  • The U-healthcare is increasingly important as there is a growing tendency for elderly people to acquire chronic disease such as heart problems and high blood pressure. In this paper, we implemented an oximeter which can interact and communicate with the smart devices such as smartphones through which users can manage their measuring data. The designed pulse oximeter is capable of detecting hemoglobin saturation levels in the range of 70-100% and the heart beat rate(BPM) in the range of 30-240 BPM.

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Effect of Heat Stress on Minerals Concentration in Blood and Colostrum of Heifers Around Parturition

  • Toharmat, T.;Kume, S.
    • Asian-Australasian Journal of Animal Sciences
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    • v.10 no.3
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    • pp.298-303
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    • 1997
  • Sixteen holstein heifers were employed to study the effect of thermal stress on rectal temperature and mineral status of heifers around parturition during hot and cool weather. During the hot weather, rectal temperatures of the heifers measured at 08:30 and 15:30 h from 7 d prepartum to parturition were higher than those during the cool weather. Blood hematocrit and hemoglobin were not significantly different between the hot and cool weather, but at 2 and 1 wk prepartum, those during the hot weather were higher. Plasma Ca, inorganic P and Fe of the heifers during the hot weather were higher than those during the cool weather, but plasma Mg and Zn and serum alkaline phosphatase during the hot weather were lower. Colostral protein and Mg of heifers at parturition during the hot weather were lower than those during the cool weather, but colostral Ca, P, Fe and Zn were not affected by the weather.

Evaluation of Sulfite Solution to Predict Oxygen Transfer Rates in Artificial Lung (인공폐에서의 산소전달 속도를 예측하기 위한 아황산용액의 평가)

  • Lee, S.C.;Kim, K.B.;Jheong, G.R.
    • Proceedings of the KOSOMBE Conference
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    • v.1998 no.11
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    • pp.237-238
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    • 1998
  • The kinetics of sulfite oxidation must be fast and the concentration of sulfite must be low to emulate oxygen uptake by blood. The kinetics were studied yielding a first order rate constant in sulfile, zero order in oxygen. Limitations of the technique were evaluated using the experimental rate constant and an adaptation of Lightfoot's approximation, while the reaction of hemoglobin is reversible and essentially instantaneous, that for sulfite is irreversible and finite. Thus if the approach to saturations not monotonic or if the mass transfer resistance is significantly lowered, e. g. when blood film thicknesses are thinner than a few hundred microns, deviations may occur.

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Babesia gibsoni Infection in Three Hunting Dogs (사냥개에서의 Babesia gibsoni 감염)

  • Shin Sang-Tae;Choi Hee-In;Sung Jai-Ki;Lee Chang-Woo
    • Journal of Veterinary Clinics
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    • v.4 no.2
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    • pp.505-514
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    • 1987
  • Babesia gibsoni infection was diagnosed and treated in three hunting dogs which were hospitalized to the Veterinary Teaching Hospital, College of Veterinary Medicine, Seoul National University between April 4 and August 29, 1987. All three dogs revealed severe anemia, hemoglobinuria, splenomegaly and markedly decreased PCV, RBC count and hemoglobin. The anemia was regenerative, as characterized by increased numbers of nucleated erythrocytes, polychromasia, anisocytosis, reticulocytosis. B. gibsoni was identified by examination of blood smear stained with Giemsa stain. The forms of B. gibsoni identified in this report were pleomorphic such as singnet ring, oval, comma, dot and elongated forms. The maximal percentages of erythrocytes infected with one or more B. gibsoni organisms were 39%, 20% and 40%, respectively. The Tick, Haemophysalis longicornis was assumed to be the vector of babesiosis in these cases. Specific treatment consisted of diminazene aceturate and supportive treatment consisted of whole blood transfusion, lactated Ringer's solution, vitamin B complex and broad spectrum antibiotics. All three dogs had convalesced successfully after treatment.

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The effect of aprotinin for hemostasis in open heart surgery (개심술시 Aprotinin의 지혈효과에 대한 고찰)

  • 홍민수
    • Journal of Chest Surgery
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    • v.26 no.10
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    • pp.749-752
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    • 1993
  • The 26 patients were randomly selected among patients who underwent valve replacement from February 1992 through September 1993 at National Medical Center. They were divided into two groups, one control group[n=13], the other aprotinin group[n=13]. The aprotinin group recieved 15000 KIU/kg aprotinin in the CPB priming volume and 35000 KIU/kg aprotinin intravenously during operation. We checked preoperative and postoperative hemoglobin, platelet, prothrombin time, activated partial thromboplastin time, creatinine phosphokinase and lactic dehydrogenase. There was no difference in the patient`s above clinical parameters between both groups. The platelet count in both groups decreaced after operation. These findings demonstrated that the effectiveness of aprotinin was not associated with platelet number but probably associated with a protection of platelet function and a prevention of hyperfibrinolysis. The intraoperative and postoperative blood loss and requirement of blood were significantly reduced in aprotinin group.

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Comparison of Erythrocyte Traits Among European, Japanese and Korean

  • Kwon, Ji-Sun;Kim, Sang-Soo
    • Genomics & Informatics
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    • v.8 no.3
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    • pp.159-163
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    • 2010
  • Erythrocyte traits are heritable and indirect indicators of blood diseases caused by erythrocyte, but their genetic factors are largely unknown. So we performed genome-wide association study in 8,842 Korean individuals to identify genetic factors influencing erythrocyte traits. We identified 40 associations for three erythrocyte traits at genome-wide significance levels (p < $1{\times}10^{-6}$). We compared these associated loci with those reported in genome-wide association studies of European and Japanese. Our findings include previously identified loci(HBS1L-MYB, TMPRSS6, USP49 and CCND3) in other studies and novel associations (MRDS1/OFCC1, CSDE1, NRAS and 8 other loci). For example, SNP rs4895440 of HBS1L-MYB intergenic region on chromosome 6q23.3 is one of the most associations influencing erythrocyte traits (p=$8.33{\times}10^{-27}$).

Effect of Fermented Milk Products on the Growth and Blood Composition of Rats (발효유(醱酵乳) 제품(製品)이 흰쥐의 성장(成長) 및 혈액성분(血液成分)에 미치는 영향(影響))

  • Jang, Jung-Ok;Lee, Young-Soon
    • Journal of Nutrition and Health
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    • v.15 no.2
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    • pp.91-97
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    • 1982
  • In order to study the effects of commercial fermented milk and Lactobacillus juice on the growth and on blood composition of albino rats, these beverages were administered orally everyday and compared with the control rats. Experimental rats gained weight significantly compare with the control rats within the first week, but the body weights were comparable with the control during the next three weeks. WBC count was increased slightly in the experimental groups, but RBC count, hemoglobin and total serum protein contents were almost the same as that of the control group during the period. Fermented milk was effective in food efficiency ratio and fermented milk and lactobacillus juice were not influenced on any of internal organs weight.

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Anesthesia for a Jehovah's Witness Patient Experiencing Unexpected Perioperative Hemorrhage - A Case Report - (수술 중 예상치 못한 과출혈이 발생한 여호와의 증인 환자의 마취 1 예)

  • Lim, Seoung-Ki;Jee, Dae-Lim
    • Journal of Yeungnam Medical Science
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    • v.23 no.1
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    • pp.96-102
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    • 2006
  • Jehovah's Witnesses refuse a transfusion of blood or blood products because of religious beliefs; this refusal at times presents a dilemma for the treating physician. We report a case of a 25-year-old Jehovah's Witness patient who underwent a reoperation for a previous proximal humerus shaft fracture and experienced unexpected massive hemorrhage intraoperatively and postoperatively. The postoperative lowest hemoglobin level was 2.9 g/dl. The patient recovered from the severe anemia without any clinical sequala. We review the legal, ethical and religious issues and suggest the best possible medical care that Jehovah's Witness patient would permit.

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Benefits and Limitations of Low-Carbohydrate Diets: Healthy Carbohydrate Control (저탄수화물식의 효과와 한계: 건강한 탄수화물 조절)

  • Minjung Kim
    • Archives of Obesity and Metabolism
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    • v.3 no.1
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    • pp.9-13
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    • 2024
  • The prevalence of obesity has been increasing worldwide. Several dietary treatments have been suggested to control weight, and recent guidelines recommend individualizing the composition of macronutrients. Carbohydrates are the most important nutrients in meals, and carbohydrate restriction is a dietary strategy that promotes weight loss. A low-carbohydrate diet is effective for short-term weight loss and can help improve glycated hemoglobin, systolic blood pressure, diastolic blood pressure, and triglyceride levels; however, the long-term effects and safety of this diet remains doubtful. In the short term, there is a risk of gastrointestinal symptoms such as vomiting, diarrhea, constipation, and gastroesophageal reflux, and type 1 diabetes patients are at risk of severe hypoglycemia, while in the long term, it can lead to malnutrition and decreased exercise capacity. Thus, rather than limiting the intake of carbohydrates, it is important to limit the intake of refined grains, sugar, honey, syrup, and sweetened beverages while maintaining the planned carbohydrate intake rate and improving meal quality.