[Clinical-experimental studies on the behavior of the normal bladder blood vessels and of tumor vessels towards elevated intravesical pressure].
In 17 patients with tumours of the urinary bladder angiographies of the pelvis were carried out and then the angiography was repeated during an increase of the intravesical pressure to 60--120 mm Hg. In the normal, angiographically depictable vessels of the urinary bladder the blood circulation could not be interrupted by increased intravesical pressure. On the other hand, the pathological vessels of the tumours clearly reacted to an increase of the intravesical pressure. In 9 cases the circulation was completely interrupted, in 6 patients nearly all pathological vessels were compressed, and in 2 patients a clear reduction of the vessels visible before was reached. The different behaviour of normal and pathological vessels in our opinion is based on the inferior construction of the walls of the pathological vessels as well as on the lower blood pressure in the vessels of the tumour.
D000368:Aged; D000792:Angiography; D006801:Humans; D008297:Male; D008875:Middle Aged; D011312:Pressure; D001743:Urinary Bladder / Q000098:blood supply*; D001749:Urinary Bladder Neoplasms / Q000098:blood supply*
Klinisch-experimentelle angiographische Untersuchungen über das Verhalten von normalen Blasengefässen und von Tumorgefässen gegenüber erhöhtem intravesikalem Druck.