REGIONAL INTRAVENOUS SYMPATHETIC-NERVE BLOCKS

The assessment of the possible efficacy of regional intravenous blocks or sympathetic blocks, in general, raises a number of questions that may be answered after studying the techniques of regional pharmacologi c segmental blocks and their effects on the sympathetic system. The au thors present an original clinical study evaluating the capacity of re gional intravenous guanethidine to induce a sympathetic blockade compa red with other techniques.