• Title/Summary/Keyword: $Hg^{+2}$

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Trigeminocardiac Reflex Induced by Electrohemostasis during Total Ear Canal Ablation in a Dog (개의 전이도적출술 중 전기지혈에 의해 발생한 삼차신경심장반사 1례)

  • Jo, Sang-min;Son, Won-gyun;Jang, Min;Kim, Wan Hee;Lee, Byung-Cheon;Lee, Inhyung
    • Journal of Veterinary Clinics
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    • v.33 no.4
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    • pp.234-236
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    • 2016
  • A 14 kg, 9-year-old, spayed female, Cocker Spaniel was presented to the Veterinary Medical Teaching Hospital of Seoul National University with a history of head tilt and circling. Otitis externa and media were diagnosed by computerized tomography, and total ear canal ablation was performed. In preanesthetic evaluation, systemic hypertension and second-degree atrioventricular block were observed, but there was no regurgitation through the heart valves. Systemic hypertension was managed with amlodipine (0.1 mg/kg, PO, BID) for the anesthesia. The dog was premedicated with cefazolin (22 mg/kg, IV) and midazolam (0.2 mg/kg, IV). Anesthesia was induced with alfaxalone (2 mg/kg, IV) and maintained with isoflurane and 100% oxygen following intubation. During surgery, vital signs (heart rate, respiratory rate, blood pressure, end tidal carbon dioxide partial pressure and body temperature) were maintained within normal ranges, but bradycardia was observed and corrected with glycopyrrolate (5 ug/kg IV, twice). During subcuticular suture, electrohemostasis was applied at the incision line, which was close to the trigeminal nerve. In no time at all, heart rate dramatically decreased from 110 to 60 beats per minute. No additional treatment was done because mean blood pressure was maintained above 70 mmHg. The heart rate recovered according to the decrease of end tidal isoflurane concentration and there were no complications associated with the anesthesia and surgery. Sudden bradycardia after electrical stimulation around the trigeminal nerve was considered as trigeminocardiac reflex (TCR). It is recommended to be careful of bradycardia from TCR when electrocautery is used in the craniofacial area during surgery.

Clinical Features of Hospitalized Adult Patients with Pneumonia in Novel Influenza A (H1N1) Infection (신종 인플루엔자 A (H1N1) 감염으로 입원한 성인 폐렴 환자의 임상양상)

  • Han, Chang-Hoon;Hyun, Yu-Kyung;Choi, Yu-Ri;Sung, Na-Young;Park, Yoon-Seon;Lee, Kkot-Sil;Chung, Jae-Ho
    • Tuberculosis and Respiratory Diseases
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    • v.69 no.1
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    • pp.24-30
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    • 2010
  • Background: A novel 2009 influenza A (H1N1) virus emerged and disseminated to all over the world. There are few reports on the clinical characteristics of patients with complications. We describe the clinical features of pneumonia in adult patients hospitalized, who have novel influenza infection. Methods: There were 43 adult patients enrolled into the study with pneumonia of 528 hospitalized patients confirmed influenza A (H1N1) virus infection by real-time reverse transcriptase polymerase chain reaction testing, between 24 August 2009 and 31 January 2010. The clinical data of patients with pneumonia were collected retrospectively. Results: There were 22 of 43 (51.2%) influenza patients with pneumonia that had higher risk factors for complications. Compared to 28 patients with influenza A (H1N1) viral pneumonia and 15 patients, who had isolated bacteria from cultures, those with mixed viral and bacterial pneumonia were significantly more likely to have unilobar consolidations on chest radiographs (53.3 vs. 10.7%, p<0.01) and higher scores of pneumonia severity index (PSI; 90 [66~100] vs. 53 [28~90], p=0.04). Six patients required mechanical ventilation support in an Intensive Care Unit and were more likely to have dyspnea (83.3 vs. 29.3%, p=0.02) and low levels of $PaO_2$ (48.3 [37.0~70.5] vs 64.0 [60.0~74.5] mm Hg, p=0.02) and high levels of pneumonia severity index (PSI) score (108.0 [74.5~142.8] vs. 56.0 [40.5~91.0], p=0.03). Conclusion: The majority of pneumonia patients infected with novel influenza improved. Chest radiographic findings of unilobar consolidations suggest that mixed pneumonia is more likely. Initial dyspnea, hypoxemia, and high levels of PSI score are associated with undergoing mechanical ventilation support.

A Study on the Hazardousness and the TLV in Working Environments of Benzine (벤진의 유해 위험성과 작업환경 노출기준 연구)

  • Kim, Hyeon-Yeong;Lee, Sung-Bae;Han, Jung-Hee;Shin, Jea-Hoon
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.16 no.3
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    • pp.233-244
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    • 2006
  • Of many volatile organic detergents for metals, benzine(CAS No. 8030-30-6), of which the toxicity has not yet been proven, has been used as an alternative of the halide compounds in the consideration of toxic effects, global warming and the destruction of ozone layer. In order to evaluate the effects of the benzine on human body by investigating the subchronic inhalation toxicity, to obtain the basic data for establishing the criteria of exposure in working environments and to classify the hazardousness in compliance with the Industrial Safety and Health Act by evaluating the hazardousness, repeated inhalation exposure test was carried with SD rats. The rats were grouped by 10 females and males each. The repetitive inhalation exposures were carried out at 4 levels of concentration of 0 ppm, 60 ppm, 300 ppm, and 1,500 ppm, for 6 hours a day, 5 days a week, for 13 weeks. The results are described hereunder. 1. No death of the animals of the exposed and controlled groups in the test period. Not any specific clinical symptoms, change in feed intake quantity, abnormality in eye test, or change in activity were observed. 2. In the 300 ppm and 1,500 ppm groups, weight reduction in the female groups and weight increase of liver and kidney in the male groups compared with control group were observed with statistical significance(p<0.05). 3. In the blood test, the HCT increased in the male 300 ppm group and the number of hematocyte increased, MCV and MCH decreased in the male 1,500 ppm group. In the female 1,500 ppm group, the HB decreased and the distribution width of the hematocyte particle size increased. In the blood biochemistry test, the TP in the male 1,500 ppm group and the LDH in the female 1,500 ppm group were increased with statistical significance(p<0.05). 4. Under the test conditions of the present study with SD rats, the NOEL was evaluated to be from 60 ppm to 300 ppm for both male and female groups. By extrapolation, the NOEL for human who work 8 hours a day was evaluated to be from 128 ppm to 640 ppm 5. Since the NOEL evaluated in this study do not exceed 60ppm(0.184 mg/L) the test material does not belong to the classification of the hazardous substance "NOEL${\leq}$0.5mg/L/6hr/90day(rat), for continuous inhalation of 6hours a day for 90 days" nor to the basic hazardous chemical substance class 1(0.2 mg/L/6hr/90day(rat) defined by the GHS which is a criteria of classification and identification of chemical compounds. However, considering the boiling point($30-204^{\circ}C$), flashing point($-40^{\circ}C$), vapor pressure(40 mmHg), and the inflammable range(1.0 - 6.0 %), sufficient care should be taken for handling in the safety aspects including fire or explosion.

A Case of Acute Respiratory Distress Syndrome Induced by All-Trans-Retinoic Acid (ATRA로 유발된 급성호흡곤란증후군 1예)

  • Kim, Cheol;Ko, Won-Ki;Kwon, Seung-Hyun;Kang, Shin-Myung;Kim, Chang-Nyun;Yang, Dong-Gyoo;Kim, Se-Kyu;Chang, Joon;Kim, Sung-Kyu;Lee, Won-Young;Yang, Woo-Ik
    • Tuberculosis and Respiratory Diseases
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    • v.49 no.1
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    • pp.93-98
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    • 2000
  • Acute respiratory distress syndrome (ARDS) has been reported to be associated with a variety of medical and surgical conditions, including All-trans-retinoic acid (ATTA). ATRA is very efficaceous drug to acute promyelocytic leukemia (APL). This drug can induce complete remission at APL without fatal risk of disseminated intravascular coagulation. But ATRA treatment, sometimes, produces the symptoms of fever, weight gain and acute respiratory distress, renal function impairment. The causes of these symptoms are not fully proved, but supposed as the result of leukostasis and capillary leak syndrome from excessive leukocyte differentiation and cytokines release. Recently, we experienced a 24-year-old woman who complained gum bleeding for 6 days. At bone marrow biopsy, she was diagnosed as APL. 2 days after ATRA treatment, she was suffered from the symptoms of dyspnea and general ache. At laboratory examination, total leukocyte count was 50,400/$mm^3$, $PaO_2$ was 42.5 mm Hg and chest PA revealed the findings compatible with ARDS. Treatment with low dose ara-C, corticosteroid and general supportive cares were tried. Within 3 days after treatment, the patient recovered from ARDS by evidence of arterial blood gas study and chest radiographs. She has acquired complete remission of APL with maintenance of A TRA. And so, we present this case with a review of related literatures.

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An Epidemiological Investigation on Severity of Cerebro-Vascular Accident Patients in Korea (한국인의 뇌졸중 위중도에 관한 역학적 분석)

  • Jeon Jae-Kyun;Roh Pyong-Ui
    • The Journal of Korean Physical Therapy
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    • v.11 no.1
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    • pp.23-43
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    • 1999
  • A study on severity of cerebro-vascular accident patients in Korea was conduced in order to determine the risk factors affecting the severity of stroke patients. This study was performed by interviewing a total of 477 hospitalized and ambulatory patient of CVA in Seoul, Taejon, and Taegu and Pusan areas from April 1, 1998 through June 30, 1998. The results are as follows; 1. Two hundred and sixty seven $(56\%)$ at Four hundred and seventy seven subjects were manes, md two hundred and ten $(44\%)$ were females. $28.3\%$ of the subjects' ages were 50's and $27.3\%$ were 60's and $18.5\%$ were 70's. $22.6\%$ of the subjects' occupations were home makers, $17.8\%$ were farming. $66.4\%$ of the subjects spent their childhood in urban areas and $33.1\%$in rural areas. $41.7\%$ of the subjects became violin of CVA in Spring, $35.0\%$ in Winter. 2. On physical and mental conditions of the subjects at the occurrence of CVA, $28.7\%$ of the subjects were engaged in physical activities. $22.6\%$ were in a rest stale $19.5\%$ were in sleeping and $18.9\%$ were mentally shocked. $79.4\%$ of the male subjects and $14.8\%$ of female subjects smoked cigarettes. $82\%$ of male subjects drank coffee. $81.1\%$ of the subjects did not exercise regularly. $45.9\%$ of the subjects had the systolic blood pressures in the range of 160 to 199 mmHg and $5.6\%$ of the subjects had hypertension before the occurrence of stroke and $11.7\%$ had diabetes. 3. Of the types of strokes, cerebral hemorrhage was the highest $(49.1\%)$. cerebral infarction was the second $(41.1\%)$. Severe strokes were found in cerebral hemorrhage cases $(52.0\%)$ and cerebral infarction cases $(40.1\%).\;50.9\%$. of the male subjects were moderate cases, $50.9\%$ were severe cases. In females, moderate cases were $72.4\%$, severe cases $15.2\%$. $37.5\%$ of the subjects who had preceding diseases were severe cases, and $15.6\%$ of the subjects without preceding diseases were severe cases. $50.7\%$ of the subjects whose family members had strokes had severe strokes. $34\%$ of the subjects sleeping less than 6 hours a day, $42.4\%$ of the subjects with irregular eating habits, $33.3\%$ of the subjects who liked meat, and $42.3\%$ of the subjects who liked salty foods had severe strokes. $35.9\%$ of the subjects with hot temper, $27.6\%$ of the subjects with moderate temper and $14.5\%$ of subjects with mild temper were severe cases. 4. The correlation coefficient between obesity and blood pressure was 0.094.

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Investigation on Bacillus anthracis isolated from Kyong-Ju (경주에서 분리된 탄저균에 대한 연구)

  • 이준규;이은미;차우양;김정화;김영환;이양수;김우현;정종식
    • Korean Journal of Veterinary Service
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    • v.18 no.1
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    • pp.41-56
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    • 1995
  • The present study was conducted to investigate results of B. anthracis isolated from Anthrax in the Kyong-Ju of Feb. 12. 1994. 1. In biochemical feature, B. anthracis was a gram-positive rod, non-motility, sporulation, capsulation. It was positive in gelatinase, starch hydrolysis, glucose. But negative in urease, arabinose, mannitol, xylose. 2. B. anthracis grew well on B4 Br A TSA after incubation for 24 hours. The organisim grew well on BA, Br. A, NA, TSA after incubation for 72 hours. The media grew well on Br A instead of BA. 3. On 5% blood agar by laboratory animal, ${\beta}$ -hemolysis was produced from 36 hours to 48 hours incubation. There was perfect ${\beta}$-hemolysis after incubation for 48 hours. On the other side ${\beta}$-hemolysis was begun on 5% goat blood agar after incubation for 60 hours. 4. In the test of antimicrobial susceptibility, B. anthracis was very sensitive to AM, CF, TE, ENR, GM, AN, DFX, S, P, TYLO, N, KM, C, E, Lins+Sp, NN, CC, CFP, CB were sensitive one by one. B. anthracis was no-sensitive to L, XNL, TIA, CL, SXT 5. B. anthracis had never sensitivity to direct inoculation of rat and chicken, after subcutanous inj. It was very sensitive to mouse and goat, hamster, guinea pig, rabbit had a sensibility one by one. 6. The dead laboratory animal which had been inoculated with B. anthracis preserved at $37^{\circ}C$ incubation, B. anthracis didn't cultivate on non-dissected animal after 80 hours but cultivate on dissected animal after 360 hours. 7. The rapidly death could cause high concentration, died from 420 after S. C. 8. The blood smeared samples of hamster from inoculation with B. anthracis, spore germinated In 37$^{\circ}C$ after 5 hours, in $32^{\circ}C$ after 6 hours, in room temperature after 9 hours, in $-4^{\circ}C$ to $-20^{\circ}C$ after 10 hours. 9. B, anthracis inoculated to laboratory animal after SC or PO. Mice and rats feces didn't cultivated with B. anthracis after SC, but did cultivated with B. anthracis after PO. 10. In the test of disinfectant, B. anthracis was high effective to $HgC1_2$, formalin, effect phenol, cresol, but non-effect NaOH, ethanol.

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Chemical Composition of Imported Table Salts and Kimchi Preparation Test (시판 수입 소금의 성분과 김치제조 시험)

  • 신동화;조은자;홍재식
    • Journal of Food Hygiene and Safety
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    • v.14 no.3
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    • pp.277-281
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    • 1999
  • Chemical composition of imported table salts from China (sun dried), Thailand (sun dried) and Australia (rock salt) were compared the mineral content and heavv metal contamination with Korean sun dried salt. Kimchies prepared by those salts were analyzed the quality by pH, acidity and sensory evaluation. Chemical compositions were as follows : moisturefrom 1.7% (Australia) to 8.7% (Korea), sodium chloride-from 86.7% (China, summer) to 97% (Australia), insoluble matter in water-from 0.02% (Australia) to 0.18 (China), and sulfate ionfrom 0.03% (Australia) to 1.65% (China, summer). Judging by Korean Standard(KS) of salt, salt from Australia and Thailand belong to 1st grade, Korean and Chinese (winter) to 2nd grade, and China (summer) were out of 3rd grade. Ca and Mg content of the salts tested were 0.022% (Australia) to 0.246 (China, winter), 0.036% (Australia) to 0.841% (China, summer) respectively and Pb was 1.23 ppm(China, summer)~0.61ppm(Korea) which is within the Korean regulation. The other heavy metals, Pb, Cd, As and Hg were not detected in all salts tested. The quality of Kimchi prepared by those salts were significantly no difference with Korean sun dried salt.

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Evaluation of Yeongsan Lake Ecosystem Using Various Environment Parameters (다각적 수환경지표를 이용한 영산호의 생태영향 평가)

  • Choi, Ji-Woong;An, Kwang-Guk
    • Korean Journal of Ecology and Environment
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    • v.41 no.2
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    • pp.155-165
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    • 2008
  • The purpose of this study was to evaluate the ecosystem of Yeongsan Lake using physical, chemical, and biological indicators. We evaluated the integrative ecosystem health using Lentie Ecosystem Health Assessment (LEHA) model, Qualitative Health Evaluation Index (QHEI) model, and chemical water quality. The models of LEHA and QHEI were modified as 10 and 7 metries attributes, respectively. Also, we analyzed bioaccumulation of total mercury on various fish tissues by method of U.S. EPA 7473 using Direct Mercury Analyzer (Model DMA-80). Model values of LEHA model averaged 19 (range: $14{\sim}26$, n=15), which indicated a "poor" condition, and had slightly spatial variations. Values of the QHEI in the all sites averaged 72, which were judged as a "fair" to "good" condition. The QHEI values varied from 48 (fair condition) to 99 (good condition) and showed large longitudinal gradients between the upper and lower reach. Conductivity and salinity were increased from the up-lake to downlake reach. Analysis of total mercury in fish tissues showed that levels of total Hg ranged between 0.002 and $0.087\;mg\;L^{-1}$ depending on the types of tissues. Overall, the ecosystem health in the Yeongsan Lake was judged as a "poor" and the effects of bioaccumulation on the fish tissues were minor. Therefore, it is necessary to keep an efficient management for the lake environment to maintain their ecological health.

A Study of Entomopathogenic Nematode at Heavy Metal Contents in the Polluted Soil of Kyungsangbuk-do Area (경상북도지역의 오염된 토양에서의 중금속 함량에 관한 곤충병원성 선충에 관한 연구)

  • 한상미;황경숙;백하주;김무식;한명세
    • Korean Journal of Environmental Biology
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    • v.20 no.4
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    • pp.360-365
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    • 2002
  • The variety and density of entomopathogenic nematodes from the polluted soils of heavy metals were examined. In order to investigate the pollution of heavy metals in soil, 300 sites in kyungsangbuk-do were collected from March to October in 2001. We measured the contents of seven heavy metal elements (Cd, Cu, As, Hg, Pb, Cr^{6+}$, CN) and than cheesed soil of 25 sites with high concentration of heavy metals. The seven strains of nematodes were isolated from seven samples by silkworm host (Bombyx mori mori) and white trap. Isolated nematodes are composed of two families, one order. The members of Rhabditida were isolated in the soil with mean Cd content of 0.870 ppm. And they were isolated in the soil samples with As content less than 0.745 ppm. However they were isolated regardless of concentration of Cu and Pb. The members of Cylindrocorpidae were isolated in the soil samples with Cr^{6+}$ content less than 0.05 ppm. Any entomopathogenic nematode was not detected in the CN polluted soil. Isolated nematodes successfully cultured on the silkworm host and were confirmed the pathogenicity, multiplicity, and tolerance against various condition of preservation. Which proved its potential usefulness as biological agent.

Drug-Induced Anaphylactic Shock at the Emergency Department (응급실 기반 약물에 의한 아나필락시스 쇼크 환자의 임상적 특성)

  • Han, Sang-Guen;Ahn, Ryeok;Kim, Sun-Hyu;Choe, Seung-Won;Hong, Seung-Won
    • Journal of The Korean Society of Clinical Toxicology
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    • v.7 no.2
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    • pp.137-142
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    • 2009
  • Purpose: This study was conducted to investigate the characteristics of drug induced anaphylactis and anaphylactic shock in patients who were admitted to the emergency department Methods: We retrospectively collected the data on patients with drug induced anaphylaxis and who were admitted to the emergency department from January 2001 to June 2009. The study group was divided into the non-shock and shock groups according to whether the systolic blood pressure more than 90mmHg. The initial demographic data, the causes of drug-induced anaphylaxis, the clinical manifestations, the treatment and the prognosis were reviewed for 72 patients. Results: The mean age of the study subjects was $47.9P{\pm}14.2$ years old and there were 40 male patients and 32 female patients. There were 26 patients in the non-shock group and 46 in the shock group. The mean age was older in the shock group than in the non-shock group ($51.5{\pm}15.1$ vs $42.5{\pm}10.6$, p-0.002). A history of drug allergy was more common in the shock group, but no difference was found for the comorbid chronic diseases between the two groups. Radio-contrast media was the most common cause, followed non-steroidal anti inflammatory drugs and antibiotics, but there is no difference in the causes between the two groups. The symptoms of cyanosis, syncope, sweating and dizziness were more frequently manifested in the shock group. The administration of intravenous fluid and injection of subcutaneous epinephrine at the emergency department were more frequent in the shock group than in the non-shock group. Conclusion: For the patients who were admitted to the emergency department with drug induced anaphylaxis, the mean age was older and the symptoms of cyanosis, syncope, sweating, dizziness were more frequent in the anaphylactic shock patients than in the non-shock group. More treatments were given at the emergency department to the anaphylactic shock patients.

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