• Title/Summary/Keyword: Stroke volume

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Effects of Potassium Ion Concentrations on the Cardiac Performances in the Turtle Heart Amyda japonica (자라 심장 박출량과 $K^{+}$ 농도)

  • Kim, Jun;Nam, Kee-Yong
    • The Korean Journal of Physiology
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    • v.14 no.1
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    • pp.31-39
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    • 1980
  • Changes in cardiac performances were observed under variations of the arterial and/or venous pressures with K-loading or K-depletion in turtle heart. Hearts were perfused with turtle Ringer-Locke's solutions containing various levels of potassium ion concentration. When venous pressure increased from 4 to 12 cm $H_2O$, cardiac output increased from $6.2{\pm}0.68$ to $15.7{\pm}0.75\;ml/min$, concomittantly. On the contrary, cardiac output decreased during the elevation of arterial pressure. Stroke work increased more prominently during the arterial pressure elevation than during the elevation of venous pressure. During K-depletion$(1{\sim}2mEq/L)$, cardiac output increased to two times that of normal K-concentration$(3{\sim}6\;mEq/L)$ group. Heart rate increased also, but less markedly. In K-loaded$(7{\sim}8\;mEq/L)$ group, both the cardiac output and heart rate decreased but stroke volume rather increased, because heart rate decrement was disproportionate to that of cardiac output. We concluded that in perfused turtle heart, cardiac output variation was more sensitive to K_depletion whereas heart rate to K-loading.

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A Study on "Byun Jeung Rok(辨證錄)" Vol.14 (변증록(辨證錄) 권지십사(卷之十四)에 대(對)한 연구(硏究))

  • Lee, Hyun-Jeong;Song, Ji-Chung;Jeong, Hyun-Jong;Lee, Jong-Hwan;Keum, Kyung-Soo
    • Journal of the Korean Institute of Oriental Medical Informatics
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    • v.17 no.1
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    • pp.257-293
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    • 2011
  • "Byun Jeung Rok(辨證錄)" written by Jinsatak(陳士鐸) is composed of 14 volumes. In relation to the contents, it is organized into 126 gates(門) and 770 remaining syndromes(餘證) where internal medicine, external medicine, pediatrics, gynecology(內科 外科 小兒 婦人), etc. are divided into sub-sections of cold damage, cold stroke, wind stroke(傷寒 中寒 中風), etc. He explained the symptom, cause of disease, method of treatment, prescription, construction of prescription, instruction of medicine and prognosis(症狀 病因 治法 處方 處方構成 服用法 預後) thoroughly. This study, as an inquiry of the sec 14 volume pediatrics(小兒), deals with febrile fit cacotrophy vomiting diarrhea(驚疳吐瀉), coprozoic parasite(便蟲), smallpox(痘瘡), eruption(疹症), eating mud(喫泥), fetal toxin(胎毒). It was written very logically so it is easy to understand. The analysis of the symptoms are brief and appropriate. Therefore, it is considered to have significant clinical value for future generations and is applied by them. Finally, this topic was studied in hopes of helping later pediatrics clinical treatment.

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The Effect of the Meridian Massage on the Hand Edema and Function of the Hemiplegic Patient (경락마사지가 편마비 환자의 손부종과 손기능에 미치는 효과)

  • Lee, Sang-Eun;Lee, Hyang-Yeon
    • Korean Journal of Adult Nursing
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    • v.15 no.4
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    • pp.520-530
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    • 2003
  • Purpose: The objective of the study was to identify the effects of the meridian massage therapy on hand edema and hand functions in patients with hemiplegia. Method: The experiment was conducted in the Oriental Medical ward of "K" hospital during the period of 2000. 12. 15 - 2001. 03. 15. Fifty five subjects with hemiplegia following a stroke participated in the study. Volumetric size of the hand and the circumference of the index finger of each patient was measured and functional points were recorded for pre and post experiment. Result: 1. Apparent decrease in volumetric size of the hand and the circumference of the index finger(p=.022. p=.021), and higher functional points(p=.003) in the experimental group in comparison to the control group. 2.Volume of hands & their functions appeared to be irrelevant(r=-.195, p=.154). 3. Circumference of the index finger & their functions also turned out to be irrelevant (r=-.110, p=.424). Conclusion: Meridian massage is an effective nursing interventional therapy to relieve hand edema and improve hand functions in hemiplegic patients and has great potential for use in a wide range of medical fields as an efficient supplementary treatment for stroke rehabilitation.

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Case Report about Korean and Western Medicine Treatments of a Stroke Patient with Chronic Diarrhea and Clostridium Difficile Associated Diarrhea (뇌졸중 환자에게 발생한 만성 설사 및 Clostridium difficile 연관 설사 한‧양방 병행 치료 치험 1례)

  • Kim, Sae Won;Jang, Woo Seok
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.29 no.6
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    • pp.517-522
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    • 2015
  • The objective of this study is to report the clinical application of Korean and Western medicine on chronic diarrhea and Clostridium difficile associated diarrhea. Clostridium difficile associated diarrhea is usually triggered by using antibiotics. This patient also took some antibiotics and she started to suffer diarrhea diagnosed as chronic and Clostridium difficile associated diarrhea. She had suffered from diarrhea over 10 times per day. We checked changes of numbers, total volume of defecations and stool form. We treated the patient with acupuncture, moxibustion, herbal medicine and metronidazole. After treatment, diarrhea was stopped and the patient defecated normal form stool. According to this study, acupuncture, moxibustion, herbal medicine and metronidazole was effective for 1 case of stroke patient with chronic and Clostridium difficile associated diarrhea.

Collateral damage of emergency medical services due to COVID-19 (COVID-19에 의한 EMS 동반손상)

  • Lee, Nam-Jin;Yang, Jin-Cheol;Moon, Jun-dong
    • The Korean Journal of Emergency Medical Services
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    • v.25 no.3
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    • pp.189-200
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    • 2021
  • Purpose: We aimed to provide effective emergency medical services (EMS) response strategies for coping with high acuity patients during the pandemic by analyzing the influence of the COVID-19 and social distancing on EMS. Methods: In this retrospective observational study, we analyzed the distribution of high acuity patients transported by Daejeon 1-1-9 EMS during the COVID-19 pandemic period, between February 1, 2020 and October 31, 2020 and the same period in 2019, as well as the level 3 social distancing enforced period, between July 27, 2020 and October 31, 2020. Results: The EMS dispatches decreased by 17% during the observed COVID-19 pandemic period compared to the same period in 2019. The number of cases with cardiac arrest and positive prehospital stroke scale rose by (p<.001). Patients with cardiac arrest, trauma, and positive prehospital stroke scale increased by during the level 3 social distancing period. Conclusion: Unlike the decreased EMS call volume and patient transports during the COVID-19 pandemic, cardiac arrest cases and the severity of high acuity patients tended to increase. We suggest that EMS systems should contrive a response strategy considering the collateral effect of major epidemics on the incidence rate of high acuity patients.

Neuroprotective Effects of KC0244, a Glycine Site Antagonist, in a Rat Model of Transient Focal Ischemia

  • Ku, Hee-Jung;Churlmin Seong;Park, No-Sang;Changbae Jin
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 1998.11a
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    • pp.143-143
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    • 1998
  • Antagonists acting at the glycine site of the NMDA receptor have been gaining safer alternatives for stroke therapy because they have few adverse effect competitive and noncompetitive NMDA antagonists. Therefore, the neuroprotect novel glycine site antagonist KC0244 were evaluated in a rat model of transient comparison with GV150526A in a developmental phase. Middle cerebral artery oc was produced by insertion of a silicone-coated 4-0 nylon monofilament to the o in male Sprague-Dawley rats under isoflurane anesthesia. After 90 or 120 min retracted and the ischemic tissue reperfused. In 90-min MCAO model, GV150526A was administered 30 min before MCAO or immediately after MCAO. In 120-min MC KC0244 or GV150526A (10 mg/kg, i.p.) was administered 1 hr before MCAO or imme MCAO. Infarct volume was measured 24 hr after MCAO using the 2,3,5-triphe chloride staining method. In 90-min MCAO model, treatments with GV1505 significantly reduce infarct volume although they tended to slightly reduce cor approximately 19% compared with the nontreated group. In 120-min MCAO model with GV150526A did not either significantly reduce infarct volume although the reduce total infarct volume by approximately 16% compared with the vehicle-tre However, 1-hr preischemic and immediate treatments with KC0244 reduced total i 39 and 30% (corrected total infarct volume by 44 and 32%), respectively, co vehicle-treated control group. The results suggest that KC0244 can provid against transient focal ischemic damage with greater in vivo potency than GV150

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Growth Factor According to Rebleeding in Small Volume Spontaneous Intracerebral Hemorrhage (소량의 자발성 뇌내출혈에서 재출혈에 의한 혈종 성장에 미치는 인자)

  • Jung, Hyun Ho;Kim, Sei Yoon;Whang, Kum;Cho, Sung Min;Pyen, Jhin Soo;Hu, Chul;Hong, Soon Ki
    • Journal of Korean Neurosurgical Society
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    • v.30 no.sup2
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    • pp.259-265
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    • 2001
  • Objectives : Spontaneous intracerebral hemorrhage(S-ICH) is generally considered to be a mon-ophasic event. But some patients with ICH continued to bleed even after hospitalization. In order to evaluate the rebleeding and growth factor of hematoma in small volume S-ICH, 125 cases of S-ICH were reviewed retrospectively. Methods : We assesed age, sex, initial mental state, location of hemorrhage, systolic and diastolic blood pressure, blood pressure patterns, hematologic profile, trauma and stroke history, alcohol consumption and smoking history. Two subgroups-rebleeding groups versus no rebleeding groups-were compared, in terms of data analysis, with student T-test and chi-square test. Results : Substantial growth in the volume of S-ICH occurred in 21 cases(16.8%)-putamen(7 cases), thalamus(6 cases), subcortex(5 cases), cerebellum(2 cases), pons(1 case)-of the 125 patients. There was no significant difference in any of the parameters except initial systolic blood pressure(p=0.037) when patients with and without rebleeding were compared. Conclusion : The rebleeding and growth of the small volume S-ICH was related to the markedly elevated initial systolic blood pressure(${\geq}180mmHg$) and labile pattern of blood pressure.

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Development of Dynamic Kidney Phantom System and its Evaluation of Usability of Application in Nuclear Medicine (핵의학 동적 신장팬텀시스템 개발 적용의 유용성 평가)

  • Park, Hoon-Hee;Lee, Juyoung;Kim, Sang-Wook;Lyu, Kwang Yeul;Jin, Gye Hwan
    • Journal of radiological science and technology
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    • v.36 no.1
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    • pp.49-55
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    • 2013
  • Currently, commercially available phantom can reproduce and evaluate only a static situation, the study is incomplete research on phantom and system which is can confirmed functional situation in the kidney by time through dynamic phantom and blood flow velocity, various difference according to the amount of radioactive. Therefore, through this study, it has produced the dynamic kidney phantom to reproduce images through the dynamic flow of the kidney, it desires to evaluate the usefulness of nuclear medicine imaging. The production of the kidney phantom was fabricated based on the normal adult kidney, in order to reproduce the dynamic situation based on the fabricated kidney phantom, in this study, it was applied the volume pump that can adjust the speed of blood flow, so it can be integrated continuously radioactive isotopes in the kidney by using $^{99m}Tc$-pertechnate. Used the radioactive isotope was supplied through the two pump. It was confirmed the changes according to the infusion rate, radioactive isotopes and the different injection speeds on the left and right, analysis of the acquired images was done by drawn five times ROI in order to check the reproducibility of each on the front and rear of the kidney and bladder. Depending on the speed of injection, radioisotope was a lot of integrated and emissions up when adjusting the pressure of the pump as 30 stroke, it was the least integrated and emissions up when adjusting as 40 stroke. The integration of the left & right kidney was not reached in the amount of the highest when adjusting as 10 stroke. In the changes according to the amount of the radioactive isotope, 0.6 mCi(22.2 MBq), 0.8 mCi (29.6 MBq)was showed up similar tendency but, in the result of the different injection 0.8 mCi, it was showed up counts close to double of 0.6 mCi. In the result of the differently injection speed of the left & right kidney, as a result of different conditions that injection speed was 20 stroke through left kidney phantom, the injection speed was 30 stroke through right kidney phantom, it was enough difference in the resulting image can be easily distinguished with the naked eye. Through this study, the results showed that the dynamic kidney phantom system is able to similarly reproduce renogram in the actual clinical practice. Especially, the depicted over time for the flow to be excreted through the kidney into the bladder was adequately reproduce, it is expected to be utilized as basic data to check the quality of the dynamic images. In addition, it is considered to help in the field of functional imaging and quality control.

Intracranial Hemorrhage Developed from Patient Who Had Been Preeclampsia at Five Days Postpartum - A Case Report - (전자간이 있던 산모에서 분만 5일후 발생한 뇌실질내 출혈 - 증례보고 -)

  • Lee, Chang-Woo;Kim, Yong-Seog;Park, Moon-Sun;Ha, Ho-Guyn;Lee, Jong-Sun;Jung, Ho;Kim, Joo-Seung
    • Journal of Korean Neurosurgical Society
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    • v.30 no.3
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    • pp.371-375
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    • 2001
  • Intracranial hemorrhage due to preeclampsia in the postpartum woman is rarely documented. Generally, the incidence of stroke is increased during pregnancy and early postpartum. Preeclampsia is considered a main cause of both nonhemorrhagic and hemorrhagic stroke. We present a 32-year-old woman who had intracranial hemorrhage at 5 days postpartum. At admission, her consciousness was semicomatose with elevated blood pressure. Computerized tomography revealed intracranial hemorrhage on right frontal lobe. Additional angiography did not reveal abnormal vascular lesion. Emergency craniectomy with hematoma removal was done. However, the patient showed no recovery and died 2 weeks later. We conclude that postpartum care of preeclampsia is important to prevent intraparenchymal hemorrhage. Relative high risk of stroke during the postpartum period suggests a causal roles for the large decrease in blood volume or the rapid changes in hormonal status that follow a live birth or stillbirth, perhaps by means of hemodynamics, coagulative, or vessel wall changes.

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The Immediate Effects of Abdominal Pressure Belt on Pulmonary Function, Balance and Gait Ability in Stroke Patients (뇌졸중 환자에게 복부압박벨트 적용이 폐 기능, 균형 및 보행 능력에 미치는 즉각적인 영향)

  • Lim, Gyu-Ri;Go, Hyeon-Jeong;Kang, Ji-Hyun;Oh, Da-Wun;Park, Shin-Jun
    • Journal of Convergence for Information Technology
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    • v.10 no.2
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    • pp.176-183
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    • 2020
  • The purpose of this study was to determine whether abdominal pressure belt has an immediate effect on pulmonary function, balance and gait ability for stroke patients. Twenty subjects measured pulmonary function and the COP, BBS, TUG, 10m walk test, and FGA prior to belt wearing. Immediately all subjects were post-tested after wearing abdominal pressure belt of elastic components. Except for forced vital capacity (FVC) and forced experimental volume in the 1 second (FEV1), there were significant differences after belt wearing. This study suggests that the application of abdominal pressure belt enhanced balance and gait ability. However, improving pulmonary function requires several efforts, such as changing the pressure level, posture.