• 제목/요약/키워드: Acute disturbance

검색결과 89건 처리시간 0.038초

Individual-Based Models Applied to Species Abundance Patterns in Benthic Macroinvertebrate Communities in Streams in Response to Pollution

  • Cho, Woon-Seok;Nguyen, Tuyen Van;Chon, Tae-Soo
    • 생태와환경
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    • 제45권4호
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    • pp.420-443
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    • 2012
  • An Individual-Based Model (IBM) was developed by employing natural and toxic survival rates of individuals to elucidate the community responses of benthic macroin-vertebrates to anthropogenic disturbance in the streams. Experimental models (dose-response and relative sensitivity) and mathematical models (power law and negative exponential distribution) were applied to determinate the individual survival rates due to acute toxicity in stressful conditions. A power law was additionally used to present the natural survival rate. Life events, covering movement, exposure to contaminants, death and reproduction, were simulated in the IBM at the individual level in small (1 m) and short (1 week) scales to produce species abundance distributions (SADs) at the community level in large (5 km) and long (1~2 years) scales. Consequently, the SADs, such as geometric series, log-series, and log-normal distribution, were accordingly observed at severely (Biological Monitoring Working Party (BMWP<10), intermediately (BMWP<40) and weakly (BMWP${\geq}50$) polluted sites. The results from a power law and negative exponential distribution were suitably fitted to the field data across the different levels of pollution, according to the Kolmogorov-Smirnov test. The IBMs incorporating natural and toxic survival rates in individuals were useful for presenting community responses to disturbances and could be utilized as an integrative tool to elucidate community establishment processes in benthic macroin-vertebrates in the streams.

조위승청탕(調胃升淸湯)등 한방치료로 호전된 급성 일산화탄소 중독의 지연성 후유증 환자 (A Case Study of Patient with Delayed Post-Anoxic Encephalopathy Improved by Korean Traditional Treatment, Especially Jowiseungchungtang)

  • 김윤용;김지영;조혜영;조성훈;황의완
    • 동의신경정신과학회지
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    • 제19권3호
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    • pp.205-217
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    • 2008
  • After recovery from acute carbon monoxide poisoning, some patients suffer from neuropsychiatric problems such as cognitive impairement, movement disorder, change of personality and mental disorder after lucid interval in which the patient has no symptom. This sequela of carbon monoxide poisoning is called delayed post-anoxic encephalopathy(DPE). No neuroprotective drug has yet demonstrated ecfficacy and hyperbaric oxygen treatment's effect have little scientific evidence in preventing and improving DPE. In such situation, korean traditional treatment may be helpful in treating the patient suffering from DPE. In this case report, we will describe the patient that has suffered from severe DPE involving cognitive impairment, gait disturbance and incontinence but has been improved successfully by korean traditional medicine treatment, especially Jowiseungchungtang. This case could present how we will study about DPE.

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두부타박으로 유발된 첨망(瞻妄)환자 치험례 (A case with Delirium caused by Cranial Contusiom with Herbal medication)

  • 신현권;김주원;김효주;차혜진;박세진;이혁재
    • 동의신경정신과학회지
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    • 제18권3호
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    • pp.289-298
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    • 2007
  • Delirium is a acute syndrome of disorientation caused by disfunction of brain tissue and has a variety of symptomes. It is characterized by disturbance of consciousness and attention, cognition, and perception for a brief period of time and tends to fluctuate during the course of the day. We experienced a 56 year-old woman who had a hypertension as well as Delirium caused by cranial contusion and whose condition was improved by Oriental medical treatment. this case study illustrates what the manifestation of Delirium caused by cranial contusion. This study shows more objective mecical pregress by grading Korean version of Delirium Rating Scale(K-DRS) and Korean version of Mini-Mental State Examination(K-MMSE). After our treatments, Delirium and some other symptoms were improved.

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저산소성 허혈성 뇌손상 환아의 치험 1례 (A case report of Hypoxic ischemic encephalopathy)

  • 유한정;고덕재;조형준;이진용
    • 대한한방소아과학회지
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    • 제18권2호
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    • pp.143-160
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    • 2004
  • Objective: There were few reports on the treatment of Hypoxic ischemic encephalopathy. We treated a hypoxic ischemic encephalopathic patient after accident with Oriental medical approach, and get a significant result. this treatment shows the possibility of healing Hypoxic ischemic encephalopathy, So we are reporting that case. Method : The acupuncture, herb medication. rehabilitation therapy was applied for treting patient's chife symptom(involuntary movement, dystonia, aphasia, dysuria, constipation) Results : 1. Generally patients with Hypoxic ischemic encephalopathy show language impairment and cognition disorder for several weeks to months. After coma stage, first they recover consciousness but have various degree of confusional mentality, visual agnosia, extrapyramidal stiffness and motor disturbance. 2. Consciousness loss in acute stage of Hypoxic ischemic encephalopathy can be considered as Mental Confusion due to Phlegm(Dammisimgyu) in veiw point of Oriental medicine. 3. After oriental medical treatment, patient's chief symptoms were improved. Conclusion: We treated a hypoxic ischemic encephalopathic patient with Oriental medical approach and patient's chief symptoms were improved. this treatment shows the possibility of healing Hypoxic ischemic encephalopathy.

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교통사고후유증(交通事故後遺症)(편타성(偏墮性) 손상(損傷))에 대한 침구치료(鍼灸治療)의 접근(接近) (A Study on Acupuncture Treatment for Disorders following Whiplash Injuries)

  • 김민아;박용진
    • Journal of Acupuncture Research
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    • 제17권3호
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    • pp.75-86
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    • 2000
  • Objectives : This study is to applied effectively to the acupuncture treatment for disorders following whiplash injuries. Methods : This study suggests five various ways and principtes of treating disorders following whiplash injuries by means of acupuncture. First principle is that acupuncture treatment is carried out on acupoint far from cervical spine at acute stage, on the other hand, Extraordinary Vessel and other acupuncture treatment such as five element acupuncture treatment is applied at chronic stage in order to control balance disoders due to cervical pathology. Second is acupuncture treatment will be performed in group of three part of Meridian System-Yangmyung, Taeyang, Soyang-according to cervical kinetic, its characteristic and location of pain. Third is acupuncture treatment could be performed on basis of theory of Eohyel-disorders and disturbance of blood circulation. Fourth is to decrease tension of SCM muscle, because disorders following whiplash injuries has much association to injury of CM muscle and is simillar to tension syndroms of SCM muscle. fifth is taping therapy could control and decrease disorders following whiplash injuries based on spiral balance taping theory. Conclusions : These results suggest that acupuncture treatment for disorders following whiplash injuries will significally decrease pain and control syndrom caused by cervical disorder.

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다양한 신경학적 이상을 나타낸 glufosinate ammonium(바스타$^{(R)}$) 급성 경구 중독 1례 (A Case of Acute Glufosinate Ammonium ($BASTA^{(R)}$) Intoxication Associated with Various Neurological Abnormalities)

  • 백진휘;김준식;이현규;박현주;하충건;노형근
    • 대한임상독성학회지
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    • 제3권2호
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    • pp.103-106
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    • 2005
  • BASTA is an herbicide which contains glufosinate ammonium as a main component with an anionic surfactant, polyoxyethylene alkylether sulfate, and nonselectively inhibits glutamine synthetase. It became a wildly used herbicide in Korea and its intoxication is now increasing. A 42-year old woman ingested about 300ml of BASTA in a suicide attempt. She showed unconsciousness and respiratory distress in the beginning, and later developed multiple generalized convulsions, low blood pressure, fever and diabetes insipidus. Although she became alert 12 days after the ingestion, she showed retrograde amnesia for a period of about recent 10 years. A neuropsychological test on day 22 revealed frontal lobe dysfunction, visual memory disturbance and slight decrease in visuospatial function. All these neurological abnormalities that might occur due to glufosinate ammonium were almost improved in the follow-up test performed a month later.

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POEMS 증후군 환자의 뇌혈관병증에 의한 뇌졸중 (Ischemic Stroke with Cerebral Vasculopathy in POEMS Syndrome)

  • 강성우;최보규;한희조;조수미;차지훈;남효석;허지회;김영대
    • 대한신경과학회지
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    • 제36권4호
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    • pp.350-353
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    • 2018
  • Ischemic stroke caused by the cerebral vasculopathy is a rare complication of polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, and skin changes (POEMS) syndrome. We present a case of recurrent ischemic strokes caused by cerebral vasculopathy in a patient with POEMS syndrome. A 34-year-old man presented with gait disturbance and dizziness. Brain magnetic resonance imaging demonstrated acute ischemic stroke in the middle cerebral artery-anterior cerebral artery (MCA-ACA) border zones of bilateral hemispheres. Repeated angiographic studies showed progressive worsening of the left distal internal carotid artery, ACA, and MCA stenoses, along with sustained steno-occlusion of right MCA.

자기공명영상의 병변에 따른 급성 파종성 뇌척수염의 임상 양상과 예후 (Clinical characteristics and prognosis of acute disseminated encephalomyelitis based on the lesions on MRI)

  • 정성훈;박성신;정사준
    • Clinical and Experimental Pediatrics
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    • 제50권9호
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    • pp.891-895
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    • 2007
  • 목 적 : ADEM은 급성 중추 신경계의 탈수초성 질환으로 병태 생리학적 기전은 확실히 밝혀지지 않았으나 대부분 바이러스 감염 또는 예방 접종 후 수일에서 수주일 경과 한 후에 발병하며, 면역학적 기전이 관여 하는 것으로 알려져 있다. 임상 양상과 예후에 있어서도 다양하게 나타나며, 대부분은 단상성의 경과를 보이는 양성 질환으로 알려져 있다. 뇌 자기공명영상 병변은 전형적인 경우 주로 백질에서만 관찰되나 심부 회백질을 침범하는 경우도 드물지 않게 보고 되고 있다. 이에 다양한 임상 증상과 예후가 뇌 병변의 위치에 의한 것이라 생각되어, 후향적으로 자기공명영상 소견과 의무기록지를 통하여 조사하였다. 방 법 : 1995년 1월부터 2003년 8월까지 경희대학교 소아과에 ADEM으로 입원한 환자 21명을 의무 기록을 토대로 조사하였다. 자기공명영상 소견에 따라 1군은 백질에 국한된 다중 또는 단일 병변, 뇌실 주위 및 소뇌의 병변도 포함된 경우로 분류하였으며, 2군은 심부 회백질 또는 피질 병변으로 백질을 침범하는 경우로 분류하였다. 두 군간에 선행 증상이나, 발병 시 신경학적 증상, 뇌 척수액 소견, 신경학적 후유증을 비교분석 하였다. 결 과 : 두 군에 있어 선행 증상의 빈도를 보면 아무런 선행 증상 없이 발병한 경우가 38.1%로 가장 많았으며 상부 호흡기 감염 증상이 28.6%였고, 두 군간에 선행 증상에 대한 통계학적 차이는 없었다. 발병 당시 증상을 보면 경련이 76.2%, 두통과 구토 증상이 47.6%, 의식의 변화가 38.1%로 관찰되었으며 두 군간에 통계학적 차이가 없었다. 검사 결과 백혈구 증다증이 38.1%, 뇌척수액 소견상 세포 증다증이 76.2%에서 보였으며, 뇌척수액 내 단백질 증가가 28.6%에서 관찰되었으며 두 군간에 통계학적 차이는 없었다. 예후에 있어서도 15명인 71.4%가 정상화 되었으며 지속된 경련은 19%, 운동 장애는 19%에서 보였으며 두 군간에 통계학적 차이가 없었다. 결 론 : 이번 연구에서 병변의 차이에 따른 임상 양상과 예후에 있어 차이가 없는 것으로 관찰되나, 다양한 증상과 다양한 병변 및 예후를 보이고 있어 수많은 다른 면역학적 기전을 가진 이종성 질환이 아닌지 의심된다. 아직까지 ADEM의 진단 기준은 임상 증상과 자기공명영상 소견에 의존하여 다소 불분명하다. 이에 ADEM에 대한 연구가 더 필요할 것이라 생각되며, 아울러 초기 자기공명영상 검사와 추적 관찰에 있어 좀더 세심한 주의와 연구가 필요하겠다.

포진후 신경통의 치료 증례 (Case report : Postherpetic Neuralgia)

  • 배국진;안종모;윤창륙;조영곤;유지원
    • Journal of Oral Medicine and Pain
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    • 제35권1호
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    • pp.93-99
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    • 2010
  • 대상포진(Herpes Zoster:HZ)은 수두 대상포진 바이러스(Varicella Zoster virus)에 의해 야기된 속발성 또는 잠복성 감염이다. 증령에 따라 바이러스 특이적 면역 및 세포 매개 면역력이 감소하면서 바이러스가 재활성화되기 때문에, 대상포진은 주로 노년층에서 호발한다. 대상포진에 이환되면, 극심한 급성 통증이 발생하게 되고 수개월에 걸쳐서 회복하게 된다. 포진후신경통(Postherpetic neuralgia:PNH)은 대상포진의 대표적인 합병증의 하나로, 대상포진에 이환된 후 발생한 통증이 3개월 이상 회복되지 않을 때, 포진후신경통으로 진단할 수 있다. 임상적 증상으로는 주기적으로 찌르는 듯한 통증이 동반되는 타는 듯한 통증, 이질통이 발생할 수 있으며, 감각저하 또는 지각이상을 보일 수 있다. $Neurometer^{(R)}$(neuroselective sensory nerve conduction threshold: sNCT, Automated current perception threshold: CPT, neurotron incorporated. Baltimore, Maryland. 21209 U.S.A.)는 신경의 감각이상을 평가하는 데 유용하게 쓰이는 평가기구이다. 이번 증례는 포진후신경통을 주소로 내원한 환자의 치료 증례를 통해, 포진후신경통의 발생기전을 고찰해보고, 그 치료법에 대하여 알아보고, 또한 치료과정 중의 경과관찰 방법으로서 $Neurometer^{(R)}$를 이용하여, 감각이상의 평가 및 경과관찰시 지각이상에 대한 정량적인 평가를 시도하였다.

항암화학요법을 받고 있는 한국 대장암 환자의 삶의 질 영향 요인 (Factors Influencing Quality of Life during Chemotherapy for Colorectal Cancer Patients in South Korea)

  • 백영애;이명선
    • 대한간호학회지
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    • 제45권4호
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    • pp.604-612
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    • 2015
  • Purpose: The purpose of this study was to investigate the levels of physical symptoms, anxiety, depression, and quality of life (QOL) during chemotherapy for colorectal cancer patients in South Korea and to identify factors influencing their QOL. Methods: Data were collected from 144 colorectal cancer patients receiving chemotherapy during 2012 at one general hospital located in Seoul. Physical symptoms were measured by the M. D. Anderson Symptom Inventory-Gastrointestinal Cancer Module, and anxiety and depression were measured by the Hospital Anxiety Depression Scale. QOL was measured by the Functional Assessment of Cancer Therapy-Colorectal. Data were analyzed using descriptive statistics, t-test, one-way ANOVA, $Scheff{\acute{e}}$ post hoc test, Pearson correlation and stepwise multiple regression. Results: Mean age of the participants was 56.6 and most of them were not employed. In terms of cancer stage, 38.2% were in stage 3, followed by stage 4 (34.7%). The most frequent symptom was lack of appetite, followed by sleep disturbance and fatigue. The mean score for anxiety was 5.40 with a prevalence of 23% and that of depression 8.85 with a prevalence of 64.6%. The mean score for quality of life was 81.93 out of 136 and 75.3% of the variance in QOL was explained by depression, symptoms, anxiety, treatment place, and occupational status. Depression was the strongest predictive factor. Conclusion: Oncology professionals need to pay special attention to relieving depression as well as physical symptoms to improve QOL during chemotherapy for colorectal cancer patients.