We present two cases of malperfusion syndrome due to aortic dissection type
-B. A supra-renal blind sac phenomenon resulted in renal failure and absent
femoral pulses in both patients. Additionally, one patient suffered from s
pinal cord ischemia, the other from severe abdominal pain. By interventiona
l techniques, catheter perforation of the blind sac was achieved. The resul
ting re-entries were enlarged with a balloon catheter. Distal perfusion wit
hout pressure gradients was restored by this technique in both patients and
resulted in complete relief of symptoms. Percutaneous fenestration of the
aortic dissection membrane may be an alternative to operative treatment in
malperfusion syndrome. (C) 1999 Elsevier Science B.V. All rights reserved.