endoaneurysmorrhaphy

(en"do-an-u-riz -mor'4-fl) [G. end on, within, aneurysm a, aneurysm, raphe, stitching.] The Matas operation for the cure of aneurysm. There are three forms of operation: (i) obliterative, (2) restorative, and (3) reconstructive. The first is applicable to fusiform aneurysms in which there are two or more orifices of supply and in which the parent artery is lost at the seat of aneurysm; in this case the openings into the sac are closed and the sac itself is folded together and sutured so as to secure union of the endothelial surfaces. The second is used in the case of a sacciform aneurysm here the opening into the sac is closed by sutures without destroying the lumen of the artery, and the sac is then plicated and sutured so as to secure its obliteration. The third operation is applicable in the case of simple, fusiform dilatation of an artery; in this case a catheter is pa ed into the two openings and the lumen of the artery is reconstructed by suturing the sac aroimd the catheter, the latter being withdrawn before the tying of the last sutures.