The effect of intracoronary injection of contrast medium upon coronary blood flow

Circulation
M BassanH J Swan

Abstract

The changes in coronary blood flow in response to intracoronary injection of 3 ml of 76% Renografin were studied in 47 patients using the thermodilution technique for continuous measurement of coronary sinus blood flow. Within seconds after left coronary injection, an increase in coronary sinus flow began which peaked at an average of 53% above control in 5-10 seconds. There was a corresponding decrease in coronary resistance. Flow returned to control level in almost all patients within one minute of injection. Twenty-four of 35 patients had no change in coronary sinus flow in response to right coronary injection. This can be explained by the fact that most of the venous flow from the right coronary artery returns in such a way that it cannot be measured by the coronary sinus catheter. Of the eleven patients who did show an increase, seven had angiographically documented right to left collaterals, suggesting that the increase in flow was the result of vasodilatation of the left coronary bed by contrast arriving via the right to left collaterals. The percent changes in flow and resistance in response to left coronary injection were isgnificantly greater in the 13 normals than in the 34 with obstructive disease of the left corona...Continue Reading

References

May 1, 1965·Circulation·G C FRIESINGERR S ROSS

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Citations

Apr 1, 1984·Journal of the American College of Cardiology·L W KleinL E Teichholz
Feb 1, 1985·Journal of the American College of Cardiology·E W GertzC Hu
Sep 1, 1985·Journal of the American College of Cardiology·L D GillamA E Weyman
Nov 1, 1986·Journal of the American College of Cardiology·C A MooreS Kaul
Oct 1, 1984·British Heart Journal·R Hayward, P Dawson
Oct 5, 2010·EuroIntervention : Journal of EuroPCR in Collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology·Hisashi UmedaToyoaki Murohara
Jan 15, 2016·The American Journal of Medicine·Philipp KreutzingerChristian Mueller
Aug 3, 2006·Journal of Interventional Cardiology·Demosthenes KatritsisAlexander Haliassos
Sep 1, 1976·Progress in Cardiovascular Diseases·F J Klocke
May 1, 1982·The American Journal of Cardiology·M T RothmanD C Harrison
Aug 1, 1982·The American Journal of Cardiology·J A WisneskiJ P Beaudry
Jan 1, 1982·Catheterization and Cardiovascular Diagnosis·J A HillC J Pepine
Sep 5, 1989·The American Journal of Cardiology·P Dawson
Dec 1, 1983·American Heart Journal·P GanzW H Barry
Jun 1, 1986·The American Journal of Cardiology·E MarchantP Casanegra
Jan 1, 1979·Acta Radiologica: Diagnosis·S BongraniO Visioli
Jan 1, 1981·Acta Radiologica: Diagnosis·J M FoersterD T Mason
May 1, 1979·Basic Research in Cardiology·H Sigmund-DuchanovaG Hellige
Sep 1, 1996·Investigative Radiology·G J Crystal, M R Salem

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