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Pulsed Modulation in Electro-Hyperthermia
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作者 Janos Szucs Lajos Konyha +1 位作者 Gabor Kertesz Andras Szasz 《Open Journal of Biophysics》 2024年第4期374-398,共25页
Modulated electro-hyperthermia (mEHT) is one of the novel oncological treatments with many preclinical and clinical results showing its advantages. The basis of the method is the synergy of thermal and nonthermal effe... Modulated electro-hyperthermia (mEHT) is one of the novel oncological treatments with many preclinical and clinical results showing its advantages. The basis of the method is the synergy of thermal and nonthermal effects, similar to the thermal action of conventional hyperthermia combined with ionizing radiation (radiotherapy). The electric field and the radiofrequency current produced both the thermal and nonthermal processes. The thermal effects produce the elevated temperature as a thermal background to optimize the nonthermal impacts. The low frequency amplitude modulation ensures accurate targeting and promotes immunogenic cell death to develop the tumor specific memory T cells disrupting the malignant cells by immune surveillance. This process (abscopal effect) works like a vaccination. The low frequency amplitude modulation is combined in the new method with the high power pulses for short time, increasing the tumor distortion ability of the electric field. The new modulation combination has much deeper penetration triplicating the active thickness of the effective treatment. The short pulse absorption increases the safety and decreases the thermal toxicity of the treatment, making the treatment safer. The increased power allows for reduced treatment time with the prescribed dose. 展开更多
关键词 Tumor Pulsed Modulation Nonthermal Excitation thermal homeostasis Cell-Killing RF Current Immunogenic Cell Death Apoptosis
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静脉快通道麻醉联合综合保温对老年脊柱手术患者内稳态及术后认知功能的影响 被引量:5
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作者 刘海峰 梁华 +2 位作者 周建明 丁志刚 刘晓华 《西北国防医学杂志》 CAS 2016年第5期288-290,共3页
目的:探讨静脉快通道麻醉联合综合保温对老年脊柱手术患者内稳态及术后认知功能的影响。方法:选择60例拟行腰椎手术的老年患者,ASAⅠ~Ⅱ级,随机分为静脉快通道麻醉联合常规保温组(R组)及静脉快通道麻醉联合综合保温组(T组),各30例。不... 目的:探讨静脉快通道麻醉联合综合保温对老年脊柱手术患者内稳态及术后认知功能的影响。方法:选择60例拟行腰椎手术的老年患者,ASAⅠ~Ⅱ级,随机分为静脉快通道麻醉联合常规保温组(R组)及静脉快通道麻醉联合综合保温组(T组),各30例。不同时间点监测并记录两组患者鼻咽温度,采集桡动脉血测定血气并行MMSE评分。结果:两组在麻醉诱导后各时间点血糖和血乳酸含量均较麻醉前升高(P<0.05),R组明显高于T组(P<0.05)。两组在麻醉后各时间点BE值均降低,T组术后1d时显著低于麻醉前(P<0.05),R组麻醉后120min、术毕及术后1d显著低于麻醉前和T组(P<0.05)。两组术后1dMMSE评分均显著低于术前1d(P<0.01),术后7d显著高于术后1d(P<0.05),仍低于术前1d,组间比较无显著差异(P>0.05)。结论:静脉快通道麻醉联合综合保温用于老年患者脊柱手术,对内环境稳态干扰小,降低术后认知功能障碍的风险,利于患者康复。 展开更多
关键词 麻醉学 静脉快通道 保温 内环境稳态 认知功能障碍 老年人
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