Szasz Andras
Department of Biotechnics, Hungarian University of Agriculture and Life Sciences, 2100 Gödöllő, Hungary.
Bioengineering (Basel). 2024 Jul 17;11(7):725. doi: 10.3390/bioengineering11070725.
Numerous preclinical results have been verified, and clinical results have validated the advantages of modulated electro-hyperthermia (mEHT). This method uses the nonthermal effects of the electric field in addition to thermal energy absorption. Modulation helps with precisely targeting and immunogenically destroying malignant cells, which could have a vaccination-like abscopal effect. A new additional modulation (high-power pulsing) further develops the abilities of the mEHT. My objective is to present the advantages of pulsed treatment and how it fits into the mEHT therapy. Pulsed treatment increases the efficacy of destroying the selected tumor cells; it is active deeper in the body, at least tripling the penetration of the energy delivery. Due to the constant pulse amplitude, the dosing of the absorbed energy is more controllable. The induced blood flow for reoxygenation and drug delivery is high enough but not as high as increasing the risk of the dissemination of malignant cells. The short pulses have reduced surface absorption, making the treatment safer, and the increased power in the pulses allows the reduction of the treatment time needed to provide the necessary dose.
众多临床前研究结果已得到验证,临床结果也证实了调制式电致热疗法(mEHT)的优势。该方法除了吸收热能外,还利用电场的非热效应。调制有助于精确靶向并免疫性破坏恶性细胞,这可能产生类似疫苗接种的远隔效应。一种新的附加调制(高功率脉冲)进一步提升了mEHT的能力。我的目的是阐述脉冲治疗的优势以及它如何融入mEHT治疗。脉冲治疗提高了破坏所选肿瘤细胞的功效;它在体内作用更深,能量传递的穿透深度至少增加两倍。由于脉冲幅度恒定,吸收能量的剂量更可控。诱导的用于再氧合和药物递送的血流足够高,但又不至于高到增加恶性细胞扩散的风险。短脉冲减少了表面吸收,使治疗更安全,脉冲中增加的功率可减少提供必要剂量所需的治疗时间。