. Annals of surgery. sent in two cases (Fig. 2).In these instances ligation of the superior hemorrhoidal arteryat any point would have resulted in gangrene, as the vascularanastomosis within the wall of the bowel would not furnishenough blood. After resection of the rectum for a high lyingcarcinoma in such cases, it would be safest to draw the proxi-mal end of the rectum or sigmoid out through the abdominalwall and form an iliac anus. The loop varied in calibre froman artery as large as the vessels it connected to a mere thread-like vessel in one instance. The loop was found on an c
. Annals of surgery. sent in two cases (Fig. 2).In these instances ligation of the superior hemorrhoidal arteryat any point would have resulted in gangrene, as the vascularanastomosis within the wall of the bowel would not furnishenough blood. After resection of the rectum for a high lyingcarcinoma in such cases, it would be safest to draw the proxi-mal end of the rectum or sigmoid out through the abdominalwall and form an iliac anus. The loop varied in calibre froman artery as large as the vessels it connected to a mere thread-like vessel in one instance. The loop was found on an cm. below the level of the promontory of the sacrum (). In one subject, however, the loop was found 5 cm. belowthe promontory. The anastomosis was found at a varying dis-tance from the bowel. The rule of clamping the vessels asfar back from the rectum as possible, to avoid injury to theblood supply when operating by the sacral route, results inmissing the loop where it lies close to the bowel, as in Figs. Fig. A, critical point; B, too low to supply entire rectal system; S, sigmoid; H, sup. ;Z-, loopanastomosing withsup. hem. artery below bifurcation. ,.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectsurgery, bookyear1885
