Le clamp vasculaire à usage unique. Etude expérimentale et clinique

Evaluation of Low-Pressure Arterial and Venous Clamps: Electron Microscopic Study and Possible Clinical Applications

“…Endothelial arterial clamping lesions have been known for a long time. [1][2][3][4][5][6]8 All authors [1][2][3][4][5] agree that there is a directly proportional relationship between the occlusive force of the clamp and the extent of the intimal lesions. Such intimal damage can be extremely severe, as demonstrated by the lesions caused by multi-use, metallic, Ikuta clamps, where the pressure is not controlled (Fig.…”

“…Clamping lesions depend on the clamp itself, in particular, the occlusive force exerted [1][2][3][4][5] and, to a lesser extent, on the technical conditions of use. The first disposable clamps allowing controlled pressure, which were developed by Tamai in 1987 7 and were rapidly adopted by us, 6 were a very positive advance in preserving endothelial structures.…”

“…We devised two protocols to demonstrate early arterial and venous intimal lesions induced by the clamps under test; these lesions were then studied using the scanning electron microscope. Arterial clamping lesions have already been the subject of several papers, [2][3][4][5][6][7][8][9] but our study also includes evaluation of venous clamping lesions, which have not previously been described in detail. This has enabled us to demonstrate the very fragile nature of the venous endothelium, and to conclude that each type of vessel requires a specific clamp.…”