• Title/Summary/Keyword: Hypothermia

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A Case of Struvite Urolithiasis in a One-month-old Korean Sapsal Dog (1개월령 삽살개에서 발생한 Struvite요도결석 1례)

  • Oh, Won-Seok;Oh, Tae-Ho
    • Journal of Veterinary Clinics
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    • v.27 no.4
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    • pp.453-456
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    • 2010
  • A one-month-old, 0.9 kg BW, male Korean Sapsal dog with anorexia, anuria, ataxia and depression was referred. On physical examination, the dog was showed tachycardia, hypothermia and pale mucous membrane. Hematologic values showed leukocytosis and mild anemia. Serum chemistry profile results revealed increased BUN (57.3 mg/dl) and $NH_3$ ($584\;{\mu}g/dl$), decreased albumin, sodium and potassium. Urinalysis showed hematuria, proteinuria, glucosuria, bacteriuria (Staphylococcus spp.) and magnesium ammonium phosphate crystalluria. On radiographic finding, urinary bladder was enlarged and 2 mm diameter radiopaque urolith was showed between os penis and prescrotal region. Urolithiasis was surgically corrected by urethrostomy.

Changes of Myocardial Temperature Following Infusion of Cold Cardioplegic Solution in Open Heart Surgery (개심술에서 냉각 심정지액 주입에 따른 심근온도의 변화)

  • 임승우
    • Journal of Chest Surgery
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    • v.24 no.4
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    • pp.345-351
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    • 1991
  • The myocardial temperature was monitored in 19 patients of open heart surgery using the Shiley myocardial temperature probe in Department of Thoracic and Cardiovascular Surgery, Yeungnam University Hospital. The myocardial temperature were measured time-wise: initial and 15 minutes following the infusion of the cardioplegic solution into the aortic root and upon reinfusion, which is 30 minutes apart from the initial. The measurements were made in the anterior wall of the right ventricle, the posterior wall of the left ventricle and the interventricular septum. Immediately after initial infusion, the temperature of the right ventricle[10.7 $\pm$4.3oC] was the lowest and that of the left ventricle[12.9$\pm$3.9 oC] the highest in the mean values among all 19 patients. However, no significant differences were noted among the different regions. At 15 minutes after infusion, the lowest temperature was in the right ventricle[17.5$\pm$5.1 oC], followed by interventricular septum[17.9$\pm$2.9 oC], and left ventricle[21.4$\pm$2.5 oC]. At 30 minutes after infusion, the lowest temperature was measured in the interventricular septum[13.6$\pm$2.7 oC ], followed by right ventricle[13.8$\pm$4.0 oC] and left ventricle[14.5$\pm$4.5 oC ]. Evaluating changes of myocardial temperature according to postinfusion time, the temperature at 15 minutes after infusion showed significant increase as compared with that immediately after the infusion in all three regions[p<0.05] and the temperature at 30 minutes after infusion showed significant decrease as compared with that at 15 minutes after the infusion in the left ventricle and the interventricular septum[p<0.05]. The left ventricle was rewarmed most rapidly and its temperature the highest in the mean values, Accordingly, the maintenance of optimal hypothermia of the left ventricle indicated a very careful factor in myocardial protection.

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The Effects of Warm Water-Filled Bag on Body Temperature, $FiO_2$, Respiration Rate, and Blood Sugar in High Risk Neonates (물주머니를 이용한 가온요법이 고위험신생아의 체온과 산소요구도, 호흡수, 혈당에 미치는 효과)

  • Kim Hee Young;Park Ho Ran;Moon Young Im;Park Jin Hee
    • Child Health Nursing Research
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    • v.11 no.4
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    • pp.390-395
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    • 2005
  • Purpose: To investigate the effects of a warm water-filled bag on body temperature, Oxygen demand, respiratory rate and blood sugar in high risk neonates. Method: The infants were assigned to two groups, 16 in the experimental and 20 in the control group. Infants in the experimental group was received $40{\~}42^{\circ}C$ warm water-filled bag therapy for 2 hours under radiant warmers. Infants in the control group were placed under the same kind of radiant warmers but without the warm water-filled bag. The following were measured every 30 minutes: rectal temperature, $O_2$ demand ($FiO_2$), and respiratory rate. Blood sugar was measured hourly. Result: Body temperatures increased significantly in the experimental group (P=0.0138), and there was a difference according to time (P=0.0001). Significant difference were found between the two groups fur $FiO_2$ (P=0.0180). There was no difference in respiratory rates between the two groups and rates according to time for the experimental group were also not significant (P=0.3569). No significant difference between two groups was found for blood sugar (P=0.2152), but there was a significant difference according to the times (P=0.0001). Conclusion: This results of this study indicate that a warm-filled bag is an effective means of resorting body temperature and reducing $O_2$ demand in high risk neonates.

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Comparison of the Effect of Applying Polyethylene Wrap and Aircap in Maintaining Body Temperature of Preterm Infants (폴리에틸렌 랩과 에어캡의 적용이 미숙아의 체온 유지에 미치는 효과)

  • Lee, Eun Sook;Lee, Han Na;Park, Ji Hyun
    • Journal of Korean Clinical Nursing Research
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    • v.26 no.2
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    • pp.232-239
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    • 2020
  • Purpose: This study was an quasi-experimental study to compare the effect of applying polyethylene wrap and aircap in maintaining body temperature of preterm infants. Methods: The participants were 51 preterm infants. Aircap was applied to the experimental group (n=23) and polyethylene wrap was applied to the control group (n=28) when the preterm infants admitted to neonatal intensive care unit. The data was collected at W hospital in J-province from June 2016 to May 2017. A total of 9 body temperature measurements were taken at 3 hours interval from 5 min to 24 hours after admission. Repeated measure ANOVA, independent t-test and χ2 test were conducted used with SPSS/WIN 24.0 Results: There were no significant difference in the homogeneity tests for general characteristics and dependent variables prior to the experiments (t=0.57, p=.566). There was a significant difference on body temperature of preterm infants over time (F=3.24, p=.020). There was no significant difference on body temperature between polyethylene wrap and aircap application groups (F=1.29, p=.261). The interaction between the group and the time was insignificant (F=1.51, p=.214). Conclusion: The findings demonstrated that both methods of applying polyethylene wrap and aircap on the body in preterm infants had effect in maintaining body temperature.

Thermal Comfort and Sleep under Different Room Temperatures (침상내 기후와 수면과의 관계)

  • Lee Young Suk;Engel Peter
    • Journal of the Korean Society of Clothing and Textiles
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    • v.15 no.4 s.40
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    • pp.351-365
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    • 1991
  • 본 연구에서는, 수면환경의 열적 쾌적도의 측정방법으로서 생리적 반응 뿐만 아닌 국소자극의 반응에 대한 평가법 (Allesthesial Response)에 의 한 가능성을 제시 하고자 하였다. 피험자는 19세에서 22세의 건강한 독일 여자 대학생 5명이며, 실험은 12월과 1월 독일의 KASSEL에 있는 Marburg대학 연구소의 인공기후실에서 이루어졌다. 사용의복은 면 $100\%$의 잠옷이며, 침구는 메트리스와 Wool 담요(두께 180 mm)를 사용하였다. 국소자극 반응의 온도는 $20.0^{\circ}C,\;22.5^{\circ}C,\;25.0^{\circ}C,\;27.5^{\circ}C,\;30.0^{\circ}C,\;32.5^{\circ}C$의 set가 사용되었으며, 온도자극은 Pottier Thermode type PKE 36 HO2-1 (독일, Peltroil사)로서, 온도의 도달정 밀도는 60내지 90초 동안에 각 자극온도의 변화조절이 가능하였다. 수면환경 온도는 $15^{\circ}C,\;18^{\circ}C,\;21^{\circ}C,\;24^{\circ}C,\;27^{\circ}C$의 다섯 환경으로 조절하였으며, 습도는 RH $45\%$였다. 수면환경 $18^{\circ}C$에서 $24^{\circ}C$까지에서는, 수면전, 수면후 모두, 피험자는 약간의 Hypothermia의 경향을 보였지만 Neutral Situation과 큰 차이는 나타나지 않았다. 수면전과 수면후의 체온조절 반응의 차이가 Allesthesial Response와 국소의 쾌적한 온도 선택의 두 실험결과 모두에서 현저히 나타났다. 생리적 반응의 결과에서도 $18^{\circ}C$에서 $21^{\circ}C$까지의 수면환경이 가장 쾌적하게 나타났다. 또한, 실험결과에서 행동적 온도 조절 반응이 생리적 반응에 앞서 보다 민감하게 이루어짐을 볼 수 있었다

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2-Week repeated oral dose toxicity study of 1,4-dichlorobutane in rats (1,4-Dichlorobutane의 랫드 2주 반복경구투여독성시험)

  • Kim, Jong-Kyu;Lee, In-Chul;Kim, Sung-Hwan;Baek, Hyung-Seon;Bae, Jin-Sook;Song, Si-Whan;Kim, Jong-Choon;Chung, Yong-Hyun
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.23 no.1
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    • pp.1-10
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    • 2013
  • Objectives: The present study investigated the potential subacute toxicity of 1,4-dichlorobutane (1,4-DCB) by a 2-week repeated oral dose in male Sprague-Dawley rats. Materials and Methods: The test chemical was administered once daily by gavage to male rats at dose levels of 0, 74, 222, 667, and 2000 mg/kg/day for 2 weeks. All rats were sacrificed at the end of treatment period. During the test period, clinical signs, mortality, body weights, food and water consumption, urinalysis, hematology, serum biochemistry, gross findings, and organ weights were examined. Results: At 2000 mg/kg/day, treatment-related clinical signs, as evidenced by hypothermia, decreased locomotor activity, piloerection, lying on side, and prone position were observed. All the rats were found dead on test day 2. At 667 mg/kg/day, polyuria, suppressed body weight gain, food consumption, and spleen and thymus weights, and increased adrenal gland and liver weights were observed.Hematological and serum biochemical investigations revealed increases in the alanine aminotransferase, alkaline phosphataseand total bilirubinand decreases in the serum $Na^+$ level, white blood cell count and lymphocyte ratio. There were no treatment-related adverse effects in the 74 and 222 mg/kg/day groups. Conclusions: In the present experimental conditions, target organs were determined to be spleen, thymus,and liver. The no-observed-adverse-effect level was considered to be 222 mg/kg/day in male rats.

Pharmacolgocial Characterization of LB50016, N-(4-Amino)Butyl 3-Phenylpyrrolidine Derivative, as a New 5-HT_{1A}Receptor Agonist

  • Lee, Chang-Ho;Oh, Jeong-In;Park, Hee-Dong;Kim, Hee-Jin;Park, Tae-Kyo;Kim, Jae-Soon;Hong, Chang-Yong;Lee, Seok-Jong;Ahn, Kyo-Han;Kim, Yong-Zu
    • Archives of Pharmacal Research
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    • v.22 no.2
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    • pp.157-164
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    • 1999
  • LB50016 was characterized as a selective and potent$ 5-HT_{1A}$ receptor agonist and evaluate it anxiolytic and antidepressant activities. It shows high affinity for $ 5-HT_{1A}$receptor, moderate affinity for $\alpha$2 adrenergic and $ 5-HT_{2A}$receptors and no significant affinity for other receptors tested. Hypothermia and increased serum corticosterone level were observed in LB50016-treated rats, which are mediated mostly by post synaptic $ 5-HT_{1A}$ receptor activation. In the mouse forced swim model for depression, LB50016-elicited dose-dependent reductions in immobility time, showing $ED_{50}$ of approximately 3 mg/kg i.p., which was blocked by pretreatment of NAN-190, $ 5-HT_{1A}$antagonist. In face-to-face test for anxiolytic activity in mice, estimated $ED_{50}$ was 2 mg/kg, i.p.. In isolation-induced aggression test with mice, fifty-fold increases in latency to attack were observed at 30 min and last up to 4 h after LB50016 treatment (3 mg/kg, i.p.). Taken together, LB50016-induced pharmacological activities are mediated by activation of $ 5-HT_{1A}$receptors, offering an effective therapeutic candidate in the management of anxiety and depression in humans.

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Predictive factors of death in neonates with hypoxic-ischemic encephalopathy receiving selective head cooling

  • Basiri, Behnaz;Sabzehei, Mohammadkazem;Sabahi, Mohammadmahdi
    • Clinical and Experimental Pediatrics
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    • v.64 no.4
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    • pp.180-187
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    • 2021
  • Background: Severe perinatal asphyxia results in multiple organ involvement, neonate hospitalization, and eventual death. Purpose: This study aimed to investigate the predictive factors of death in newborns with hypoxic-ischemic encephalopathy (HIE) receiving selective head cooling. Methods: This cross-sectional descriptive-retrospective study was conducted from 2013 to 2018 in Fatemieh Hospital of Hamadan and included 51 newborns who were admitted to the neonatal intensive care unit with a diagnosis of HIE. Selective head cooling for patients with moderate to severe HIE began within 6 hours of birth and continued for 72 hours. The required data for the predictive factors of death were extracted from the patients' medical files, recorded on a premade form, and analyzed using SPSS ver. 16. Results: Of the 51 neonates with moderate to severe HIE who were treated with selective head cooling, 16 (31%) died. There were significant relationships between death and the need for advanced neonatal resuscitation (P=0.002), need for mechanical ventilation (P=0.016), 1-minute Apgar score (P=0.040), and severely abnormal amplitude-integrated electroencephalography (a-EEG) (P=0.047). Multiple regression of variables or data showed that the need for advanced neonatal resuscitation was an independent predictive factor of death (P=0.0075) and severely abnormal a-EEG was an independent predictive factor of asphyxia severity (P=0.0001). Conclusion: All cases of neonatal death in our study were severe HIE (stage 3). Advanced neonatal resuscitation was an independent predictor of death, while a severely abnormal a-EEG was an independent predictor of asphyxia severity in infants with HIE.

Gene Expression of Early Growth Response Protein 1 in INS-1 Pancreatic β-cells Treated with Allomyrina dichotoma Hemolymph (췌장 β-세포에서 Allomyrina dichotoma 혈림프 처리에 의한 EGR1유전자 발현)

  • Kwon, Kisang;Lee, Eun-Ryeong;Kwon, O-Yu
    • Journal of Life Science
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    • v.31 no.4
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    • pp.425-429
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    • 2021
  • We have investigated the expression of early growth response protein 1 (EGR1) in INS-1 pancreatic β-cells treated with Allomyrina dichotoma hemolymph. The Korean rhinoceros beetle, A. dichotoma (Coleoptera: Scarabaeidae), is important in the insect industry for medical applications. We have already established a method for purification of A. dichotoma hemolymph that can be used in many experiments. EGR1 is reported as a multifunctional transcription factor that is implicated in virus infections. EGR1 has therefore been revealed as a major mediator and regulator in the physiological and pathological conditions of several cell and tissue types. New findings in this study are that A. dichotoma hemolymph, which promotes a dose- and time-dependent upregulation of EGR1 gene expression, shows an enhancement of this gene expression when combined with hypothermia or endoplasmic reticulum (ER) stress. These results suggest that A. dichotoma hemolymph may provide clues to EGR1-associated disease therapies involving gene regulation of EGR1.

Sevoflurane with opioid or dexmedetomidine infusions in dogs undergoing intracranial surgery: a retrospective observational study

  • Marquez-Grados, Felipe;Vettorato, Enzo;Corletto, Federico
    • Journal of Veterinary Science
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    • v.21 no.1
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    • pp.8.1-8.11
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    • 2020
  • This study reports the clinical use of two sevoflurane-based anesthetic techniques in dogs undergoing craniectomy. Twenty-one animals undergoing elective rostrotentorial or transfrontal craniectomy for brain tumor excision, anesthetized with sevoflurane, were enrolled in this retrospective, observational study. Anesthetic records were allocated to two groups: Sevo-Op (sevoflurane and short acting opioid infusion): 8 dogs and Sevo-Dex (sevoflurane and dexmedetomidine infusion): 13 dogs. Average mean arterial pressure (MAP), heart rate, end-tidal carbon dioxide, end-tidal sevoflurane and intraoperative infusion rates during surgery were calculated. Presence of intra-operative and post-operative bradycardia, tachycardia, hypotension, hypertension, hypothermia, hyperthermia was recorded. Time to endotracheal extubation, intraoperative occurrence of atrioventricular block, postoperative presence of agitation, seizures, use of labetalol and dexmedetomidine infusion were also recorded. Data from the two groups were compared with Fisher's exact test and unpaired t tests with Welch's correction. Odds ratio (OR) and 95% confidence interval (CI) were calculated for categorical variables. Intra-operatively, MAP was lower in Sevo-Op [85 (± 6.54) vs. 97.69 (± 7.8) mmHg, p = 0.0009]. Time to extubation was longer in Sevo-Dex [37.69 (10-70) vs. 19.63 (10-25), p = 0.0033]. No differences were found for the other intra-operative and post-operative variables investigated. Post-operative hypertension and agitation were the most common complications (11 and 12 out of 21 animals, respectively). These results suggest that the infusion of dexmedetomidine provides similar intra-operative conditions and post-operative course to a short acting opioid infusion during sevoflurane anesthesia in dogs undergoing elective rostrotentorial or transfrontal intracranial surgery.