Eckel H E, Dollinger K, Feaux de Lacroix G, Reidenbach H D, Thumfart W F
Universitäts Hals-, Nasen-, Ohrenklinik, Köln, BRD.
Eur Surg Res. 1992;24(5):302-8. doi: 10.1159/000129220.
The use of medical lasers or high-frequency (HF) devices ('electrocautery') allows the dissection of tissue by an application of heat. The main advantage of such techniques is the reduction of intra-operative bleeding. On the other hand, carbonization and coagulation lead to difficulties in the histological investigation of the resected specimen. Electrohydrothermosation (EHT) systems are irrigation-supported HF devices. The cutting or coagulation electrodes are continuously rinsed with distilled water in order to minimize thermal interactions with the tissue. We developed an EHT system for endoscopic head and neck surgery. The system was used to remove defined specimens from pig larynges and tongues experimentally. We compared the results with those obtained by a surgical CO2 laser and found that carbonization and overall tissue damage were less severe with EHT than with laser surgery. This leads to the conclusion that EHT is an improvement of conventional HF surgery and may be an alternative to laser surgery in the head and neck.
使用医用激光或高频（HF）设备（“电灼术”）可通过施加热量来解剖组织。此类技术的主要优点是减少术中出血。另一方面，碳化和凝血会给切除标本的组织学研究带来困难。电水热消融（EHT）系统是一种有冲洗辅助的高频设备。切割或凝血电极用蒸馏水持续冲洗，以尽量减少与组织的热相互作用。我们开发了一种用于内镜头颈外科手术的EHT系统。该系统被用于在实验中从猪的喉部和舌部切除特定标本。我们将结果与使用外科二氧化碳激光获得的结果进行了比较，发现EHT造成的碳化和整体组织损伤比激光手术要轻。由此得出结论，EHT是传统高频手术的一种改进，可能是头颈外科激光手术的一种替代方法。
