Quotation from: Manual of Surgery

Written by: Alexander Miles and Alexis Thomson


_Ligation of the Artery._--The object of tying the artery is to diminish
or to arrest the flow of blood through the aneurysm so that the blood
coagulates both in the sac and in the feeding artery. The ligature may
be applied on the cardiac side of the aneurysm--proximal ligation, or to
the artery beyond--distal ligation.


_Proximal Ligation._--The ligature may be applied immediately above the
sac (Anel, 1710) or at a distance above (John Hunter, 1785). The
_Hunterian operation_ ensures that the ligature is applied to a part of
the artery that is presumably healthy and where relations are
undisturbed by the proximity of the sac; the best example is the
ligation of the superficial femoral artery in Scarpa's triangle or in
Hunter's canal for popliteal aneurysm; it is on record that Syme
performed this operation with cure of the aneurysm on thirty-nine
occasions.

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