[Peroperative measurement of peripheral vascular resistance. Significance for the indications, technic and prognosis of distal bypasses. Apropos of 35 cases].
The authors report their experience of the per-operative measurement of the "absorption capacity" of a distal vascular network. This constitutes an absolute measurement and provides a reliable per-operative indication of a bypass, and eventually that of surgical reintervention in early thrombosis. The techniques are described with a brief overview of the major physical laws in this field. As a predictive test, the measurement is highly reliable, and a threshold value of 3 PRU was found in the series; beyond this value, all bypasses were thrombotic. A brief survey of the literature considers the theme of peripheric resistances. A table of clinical indications is situated at the end of the study, and is related to values of residual pressure and peripheric resistance. Glossary: R: peripheral resistance PAF: Pressure in femoral artery P: Pressure (mmHg) Pr: residual pressure Rp: Physiological resistance RS: stenotic resistance RC: Resistance due to collateral flow D: Femoral flow d and d': successive variations of flow.
Courchia
G
G
Service de chirurgie vasculaire, Hopital Pellegrin, Bordeaux.
Serise
J M
JM
Moreau
J L
JL
Dugrais
G
G
Boissieras
P
P
D001157:Arterial Occlusive Diseases / Q000503:physiopathology*; D001783:Blood Flow Velocity; D001807:Blood Vessel Prosthesis; D005263:Femoral Artery / Q000503:physiopathology*; D005500:Follow-Up Studies; D006801:Humans; D007432:Intraoperative Period; D007866:Leg / Q000098:blood supply*; D011379:Prognosis; D014655:Vascular Resistance
La mesure per-opératoire des résistances vasculaires périphériques. Intérêt pour les indications, la technique et le pronostic des pontages distaux. A propos de 35 cas.