[Changes in the vascular endothelium after electro- and thermocoagulation].
An experimental study was performed in animals to investigate the effect of various coagulation techniques on the vascular system. Using a microsurgical procedure, the femoral vein of fifteen rabbits was exposed bilaterally and coagulated until the lumen was closed. Electro- and thermocoagulation systems were applied. The light microscopic examination showed endothelial alterations in the course of the vessel. Analyses with the scanning electron microscope were therefore also performed. Extensive endothelial damage could be detected regularly with monopolar currents; the results were not uniform with bipolar applications. The most favorable conditions were found when thermal coagulators had been used. Damage to the parallel arteries was not detectable to a significant degree in these cases. The toxic effect of the energy applied can be morphologically divided into three stages. It should be considered whether extensive endothelial damage leads to the formation of microthrombi and thus causes clinical complications.
Sparmann
M
M
Orthopädischen Klinik und Poliklinik, Freien Universität Berlin am Oskar-Helene-Heim.
D000818:Animals; D004564:Electrocoagulation / Q000295:instrumentation*; D004730:Endothelium, Vascular / Q000473:pathology / Q000601:surgery*; D005260:Female; D005263:Femoral Artery / Q000473:pathology / Q000601:surgery; D005268:Femoral Vein / Q000473:pathology / Q000601:surgery; D008297:Male; D008855:Microscopy, Electron, Scanning; D008866:Microsurgery / Q000295:instrumentation*; D009131:Muscle, Smooth, Vascular / Q000473:pathology / Q000601:surgery*; D011817:Rabbits; D014945:Wound Healing / Q000502:physiology
Veränderungen des Gefässendothels nach Elektro- und Thermokoagulation.