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您的检索式：作者名="Matteo Cadossi"
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| 1 | Reduction of muscle contraction and pain in electroporation-based treatments:An overview显示文摘BACKGROUND In the first studies of electrochemotherapy(ECT),small cutaneous metastases were treated and only mild or moderate pain was observed;therefore,pain was not considered a significant issue.As the procedure began to be applied to larger cutaneous metastases,pain was reported more frequently.For that reason,reduction of both muscle contractions and pain have been investigated over the years.AIM To present an overview of different protocols described in literature that aim to reduce muscle contractions and pain caused by the electroporation(EP)effect in both ECT and irreversible EP treatments.METHODS Thirty-three studies published between January 1999 and November 2020 were included.Different protocol designs and electrode geometries that reduce patient pain and the number of muscle contractions and their intensity were analysed.RESULTS The analysis showed that both high frequency and bipolar/biphasic pulses can be used to reduce pain and muscle contractions in patients who undergo EP treatments.Moreover,adequate electrode design can decrease EP-related morbidity.Particularly,needle length,diameter and configuration of the distance between the needles can be optimised so that the muscle volume crossed by the current is reduced as much as possible.Bipolar/biphasic pulses with an inadequate pulse length seem to have a less evident effect on the membrane permeability compared with the standard pulse protocol.For that reason,the number of pulses and the voltage amplitude,as well as the pulse duration and frequency,must be chosen so that the dose of delivered energy guarantees EP efficacy.CONCLUSION Pain reduction in EP-based treatments can be achieved by appropriately defining the protocol parameters and electrode design.Most results can be achieved with high frequency and/or bipolar/biphasic pulses.However,the efficacy of these alternative protocols remains a crucial point to be assessed further. | Roberta Fusco Elio Di Bernardo Valeria D'Alessio Simona Salati Matteo Cadossi | 2021 | World Journal of Clinical Oncology2021，12，5： | 1 |
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