• 제목/요약/키워드: hyperthermic

검색결과 43건 처리시간 0.025초

고체온으로 경련이 유발된 경우 경련의 양상과 쥐 해마부의 Neuronal Nitric Oxide Synthase 발현 (Characteristics of Seizures and Neuronal Nitric Oxide Synthase Expression of Hippocampus in Hyperthermia-Induced Seizures of Developing Rat)

  • 김두권;정동근
    • Clinical and Experimental Pediatrics
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    • 제45권5호
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    • pp.629-636
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    • 2002
  • 목 적 : 고체온에 의하여 유발된 반복성 열성경련에서 경련의 양상과 해마부의 nNOS 발현을 비교관찰하고 열성경련과 nNOS의 관계를 알아보기 위하여 연구를 시행하였다. 방 법 : 생후 20일된 Spraque-Dowley rat을 이용하여 1주일에 2회씩 4주간 모두 8회 온수에 노출시켜 고체온에 의한 반복적인 열성경련을 유발하였다. 실험에 이용된 쥐는 모두 82마리로서 이중 52마리는 실험군으로서 항온조에서 4분간 $45^{\circ}C$ 정도의 온수에 노출시켰고, 30마리는 대조군으로서 4분간 $37^{\circ}C$에 노출시켰다. 입수 후 경련이 발생할 때까지를 잠복기로 정하였고, 경련의 첫 증상으로서 근간대성 경련이 보이고 난 후 의식을 회복하여 정상적인 활동을 보이는 시점까지를 경련 지속시간으로 정하였다. 대조군과 고체온에 노출될 때마다 경련을 보였던 hyperthermic seizure group 및 경련이 전혀 발생하지 않았던 hyperthermic non-seizure group 간의 nNOS 발현을 관찰하기 위하여 western blot을 시행하였다. 결 과 : 고체온에 노출되었던 쥐의 87%에서 전신성 강직-간대 발작을 보였고, 고체온 노출횟수에 따른 경련 발생률은 통계적으로 유의성이 없었다(P>0.05). 입수 후 경련이 나타날 때까지의 잠복기는 158에서 240초였고 평균 204초였으며, 고체온 노출횟수에 따른 잠복기는 통계적으로 유의하지 않았다(P>0.05). 경련 지속시간은 12에서 145초였고 평균 55초로 측정되었으며, 고체온 노출에 따른 경련 지속시간은 통계적으로 유의하게 나타났다(P<0.05). 결과적으로 고체 온 노출횟수가 증가할수록 경련 지속시간은 의미있게 증가하였으나 경련 발생률 및 잠복기는 차이가 없었다. 쥐 해마부에서 nNOS 단백질의 발현을 조사하기 위하여 대조군의 해마부, 대뇌피질 및 소뇌, hyperthermic non-seizure group 및 hyperthermic seizure group의 해마부와 대뇌 피질을 대상으로 하여 western blot을 한 결과 대뇌 피질에서는 각 그룹간에 nNOS 발현에 변화가 없었으나 각 그룹의 해마부에서의 nNOS 단백질 발현은 대조군에 비하여 hyperthermic non-seizure group과 hyperthermic seizure group에서 약하게 나타났고, 이 두 군간에는 차이가 없었다. 결 론 : 고체온에 의한 반복성 열성경련에서 nNOS 는 경련유발에 영향을 주지 않을 것으로 추정되며 앞으로 열성경련에 의한 해마부의 형태학적인 변화와 함께 많은 연구가 병행되어야 할 것으로 생각된다.

난소암 환자의 복부 수술 및 온열항암화학요법 후유증에 대한 한방 치험 1례 (Korean Medical Treatment of Sequela Following Abdominal Surgery with Hyperthermic Intraperitoneal Chemotherapy for Ovarian Cancer: a Case Report)

  • 조수연;김동철
    • 대한한방부인과학회지
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    • 제29권4호
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    • pp.57-68
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    • 2016
  • Objectives: This paper aims to report the effects of Korean medical treatment on a patient who underwent abdominal surgery with hyperthermic intraperitoneal chemotherapy for ovarian cancer. Methods: An ovarian cancer patient underwent abdominal surgery and got Korean medical treatment during 7-day hospitalization. About 2 years later, with metastasis to the lymph nodes detected, she had abdominal surgery with hyperthermic intraperitoneal chemotherapy and got Korean medical treatment during 10-day hospitalization. The treatment included herbal medicine and acupuncture. Numerical Rating Scale (NRS) of symptoms was measured every morning. Results: After the treatment, sequela following surgery decreased, and general conditions improved. During 1st and 2nd hospitalization, NRS of general weakness, heartburn and dorsal chill significantly decreased (10 to 5, 10 to 5 and 10 to 2, respectively) while edema in both legs remained the same. Conclusions: This case shows that Korean medical treatment is effective for a patient who underwent abdominal surgery with hyperthermic intraperitoneal chemotherapy for ovarian cancer.

Cytoreductive Surgery and Hyperthermic Intraperitoneal Chemotherapy as Treatment Options for Peritoneal Metastasis of Advanced Gastric Cancer

  • Kim, Dong-Wook;Park, Dong-Guk;Song, Sanghyun;Jee, Ye Seob
    • Journal of Gastric Cancer
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    • 제18권3호
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    • pp.296-304
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    • 2018
  • Purpose: This study aimed to examine the outcomes of cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) in patients with peritoneal metastasis (PM) of advanced gastric cancer (AGC). Materials and Methods: Between May 2015 and June 2017, 38 CRS and HIPEC procedures were performed in patients with PM of AGC at the Dankook University Hospital. We prospectively collected and analyzed data regarding PM grade, morbidity and mortality rates, and short-term follow-up results (median, 13.5 months). Results: The mean peritoneal cancer index was 15 (range, 0-39). Complete cytoreduction was achieved in 21 patients (55.2%), whereas complications occurred in 16 (42.1%) and 2 (5.7%) patients died. The overall median patient survival time was 19 months. The patients who underwent complete cytoreduction had a median survival time of 26 months, which was significantly longer than the median survival time of 16 months in the patients who did not undergo complete cytoreduction (P=0.006). Conclusions: CRS with HIPEC may have a beneficial effect in patients with PM of AGC. However, the rates of complications and mortality associated with this combined therapeutic approach are high. Therefore, this treatment should be performed only in selected patients by surgeons experienced in the field of gastric cancer with PM.

Morphine의 내성(耐性) 및 의존성(依存性) 형성(形成)에 미치는 인삼(人蔘)의 효과(II) -인삼(人蔘)의 Butanol 분획이 흰쥐의 Morphine 내성(耐性) 및 Dopamine 수용체(受容體) 초과민성(超過敏性) 형성에 미치는 영향(影響)- (Effects of Panax Ginseng on the Development of Morphine Induced Tolerance and Dependence (II) -Effects of Ginseng Butanol Fraction on the Development of Morphine Induced Tolerance and Dopamine Receptor Supersensitivity in Rats-)

  • 김학성;오세관;김갑철
    • 생약학회지
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    • 제16권1호
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    • pp.31-35
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    • 1985
  • Intraperitoneal administration of ginseng butanol fraction(GBF) to chronic morphinization in male Sprague-Dawley rats inhibited the development of tolerance to the analgesic effect and hyperthermic action of morphine. Rats were rendered tolerant to morphine by subcutaneous multiple morphine injections for a period of 8 days. The development of tolerance was evidenced by the decreased analgesic response to morphine and inhibition of tolerance by the greater analgesic response. Concomitant administration of morphine with GBF blocked the tolerance to the hyperthermic effect of morphine as evidenced by elevation of body temperature by morphine. Dopamine receptor sensitivity was enhanced in morphine tolerant rats as measured by apomorphine induced in spontaneous motor activity. GBF administration also blocked dopamine receptor supersensitivity induced by chronic morphinization.

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Microwave Hyperthermic Lipolysis Using External RF Antenna

  • Hwang, Joo-Sung;Woo, Tae-Hee;Park, Sang-Bok;Cheon, Chang-Yul
    • Journal of Electrical Engineering and Technology
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    • 제7권5호
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    • pp.759-764
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    • 2012
  • In this paper, we propose a microwave hyperthermic lipolysis method to reduce subcutaneous fat without skin burn using external RF antenna. Since skin is closer to the antenna and has higher conductivity compared to the fat beneath, the temperature of the skin rises higher than that of the fat when the external antenna illuminates EM energy into a body, which may cause skin burn. In order to avoid the damages on skin, a skin cooling system is employed to the external antenna. The operating frequency is set at 5.8 GHz which is one of the ISM bands, to concentrate EM power efficiently on fat and not to heat up the muscle behind the fat. The operation time and RF power level has been determined based on experimental results with pork. The feasibility of the proposed method was shown by applying the method to the rat.

Recent Update on the Treatment of Colorectal Peritoneal Metastasis: A Surgical Perspective

  • Hye Jung Cho;Woo Ram Kim
    • Journal of Digestive Cancer Research
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    • 제10권2호
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    • pp.74-81
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    • 2022
  • Colorectal peritoneal metastasis has been an incurable disease for centuries. However, since the new millennium, recent advancements in therapies are achieved with modern chemotherapeutic agents, target agents, and immune checkpoint blockade introduction. Modern chemotherapies, from a nearly nonexistent median survival if untreated, have raised the duration to 16 months with target agents. Experts have once again surpassed its limit by introducing intraperitoneal chemotherapy and cytoreductive surgery (CRS). Numerous clinical trials regarding CRS and hyperthermic intraperitoneal chemotherapy have now opened new doors in peritoneal carcinomatosis treatment, even securing complete remission. In addition, up-to-date modalities, such as pressurized intraperitoneal aerosol chemotherapy and immunotherapies, showed promising results at an early stage.

Initial Clinical Experience with Cytoreductive Surgery and Hyperthermic Intraperitoneal Chemotherapy in Signet-Ring Cell Gastric Cancer with Peritoneal Metastase

  • Konigsrainer, Ingmar;Horvath, Philipp;Struller, Florian;Konigsrainer, Alfred;Beckert, Stefan
    • Journal of Gastric Cancer
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    • 제14권2호
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    • pp.117-122
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    • 2014
  • Purpose: Cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) have been shown to improve survival in select patients with gastric cancer and peritoneal metastases. It remains unclear, however, whether this multimodal treatment protocol is also beneficial for signet-ring cell gastric cancer (SRC) patients with peritoneal metastases. Materials and Methods: Clinical data of patients scheduled for upfront systemic chemotherapy consisting of 5-FU (2,600 $mg/m^2$), folinic acid (200 $mg/m^2$), docetaxel (50 $mg/m^2$), and oxaliplatin (85 $mg/m^2$) followed by CRS and HIPEC using cisplatin (50 $mg/m^2$) at the Comprehensive Cancer Center, University Hospital T$\ddot{u}$bingen, Germany were retrospectively analyzed. Results: Eighteen consecutive patients for whom irresectability has been ruled out by a computed tomography scan were enrolled. However, complete cytoreduction could only be achieved in 72% of patients. When categorizing patients with respect to the completeness of cytoreduction, we found no difference between both groups considering tumor- or patient-related factors. The overall complication rate following complete cytoreduction and HIPEC was 46%. Within a median follow-up of 6.6 (0.5~31) months, the median survival for CRS and HIPEC patients was 8.9 months as opposed to 1.1 months for patients where complete cytoreduction could not be achieved. Following complete cytoreduction and HIPEC, progression-free survival was 6.2 months. Conclusions: In SRC with peritoneal metastases, the prognosis appears to remain poor irrespective of complete CRS and HIPEC. Moreover, complete cytoreduction could not be achieved in a considerable percentage of patients. In SRC, CRS and HIPEC should be restricted to highly selective patients in order to avoid exploratory laparotomy.

열 전처지가 신생쥐의 허혈성 저산소성 뇌손상에 미치는 영향 (The Effect of Hyperthermic Pretreatment in a Neonatal Rat Model of Hypoxic-ischemic Brain Injury)

  • 곽수희;임해리;김행미;최병호;권순학;이경희;오기원;손윤경
    • Neonatal Medicine
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    • 제15권1호
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    • pp.32-37
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    • 2008
  • 목 적 : 신생아 질식은 신생아 사망과 영구적 신경발달 장애의 중요한 원인이다. 이에 대한 여러 치료 방법이 시도되어 왔으나 현재까지 임상에 적용 가능한 치료 혹은 예방법은 개발되지 못하고 있다. 산모의 고열은 신생뇌에 악영향을 미치는 것으로 알려져 왔으나 최근 동물에서 시행한 고온 전처치가 뇌손상을 예방한다는 상반된 효과가 보고된 바 있다. 이에 저자들은 신생 동물의 저산소 허혈 뇌손상에 있어서의 고온 전처치의 효과를 조사하고자 이 연구를 시행하였다. 방 법 : 신생쥐를 사용하여 생후 6일에 이들을 두 군으로 나누어 전처지군은 $40^{\circ}C$의 고온 환경에, 대조군은 상온에 2시간 노출시켰다. 24시간 후 두 군 모두 편측 온목동맥 결찰 후 산소 농도 8%의 저산소 환경에 2시간 노출시켜 저산소 허혈을 유도하였으며 저산소 허혈후 7일에 뇌를 적출하여 뇌손상 정도를 비교하였다. 결 과 : 고온 전처치군 16례 중 5례(31.2%)에서 뇌손상이 관찰되어 대조군(17례 중 11례, 64.7%)에 비해 유의성 있게 뇌손상 빈도가 낮았다(P<0.05). 뇌피질, 해마, striatum 및 시상에서 관찰한 손상 부위의 분포 양상과 손상 정도는 전처치군과 대조군 사이에 통계적으로 유의한 차이를 보이지 않았다. 결 론 : 신생쥐에 있어서 2시간의 고온 전처치는 저산소 허혈 뇌손상의 빈도를 감소시켰다. 이는 산모의 발열이 저산소 허혈 뇌손상 보호 효과를 나타낼 가능성을 시사하나 임상 적용에 앞서 다양한 환경 온도 및 장시간의 노출 시간으로 그 효과와 안정성에 대한 연구가 계속되어야 할 것으로 생각된다.

Modification of Retinal Function by Hypothermia and Hyperthermia

  • Chon, Young-Shin;Kim, You-Young
    • Journal of Photoscience
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    • 제7권4호
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    • pp.161-167
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    • 2000
  • Temperature-dependent electroretinogram responses were investigated in the dark adapted bullfrog eyes within the physiological temperature range 0-40$\^{C}$. In hypothermic process(25→0→25$\^{C}$), the amplitude of b-and c-wave decreased with lowering the temperature again. Both b-wave amplitude and threshold responses were maximal around 15$\^{C}$ during the temperature increment. Upon warming to room temperature again (25$\^{C}$), the b-wave amplitude was approximately doubled as compared to that of control without temperature changes. During the hyperthermic process (25→40→25$\^{C}$), however, the responses decreased with warming, and the wave amplitude failed to recover by cooling to 25$\^{C}$ again. As describe above, the recoveries of ERG in both processes show the striking difference. The hypothermia induces the amplification of the b-wave, that is, enhances the retinal function with the temperature recovery toward room temperature. While the hypertherima produces the decrease of the b-wave even though recovered to room temperature, which indicates an irreversible retina. The morphological alteration is shown both hypothermic and hyperthermic process, such as an appearance of large vacuoles and degenerating outer segments, more intense in hyperthermia, similar to light induced damage.

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폐암의 흉막파종에 대한 흉막강내 온열-항암제 관류요법 (Intrapleural Perfusion Hyperthermic-Chemotherapy for Pleural Seeding of Lung Cancer)

  • 전상훈;강형석;이섭;권오춘;안욱수;이응배
    • Journal of Chest Surgery
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    • 제35권8호
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    • pp.608-610
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    • 2002
  • 폐암의 흉막 파종은 그 예후가 매우 불량하며, 경정맥 항암화학요법 이외에는 일반적으로 다른 치료가 시행 되지 않고 있다. 저자들은 층막 파종이 있는 두 명의 환자에게 온열요법을 병행한 흡막강내 고농도 항암약제의 관류요법을 시행하였기에, 그 결과를 문헌 고찰과 함께 보고하고자 한다.