THE RÔLE OF THEBESIAN DRAINAGE IN THE DYNAMICS OF CORONARY FLOW

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Abstract
The coronary arteries were perfused in dogs'' hearts obtained immediately after the animals were sacrificed, and the drainage into the coronary sinus, right auricle, right ventricle, left auricle and left ventricle were measured. Special umbrella-like partitions were used to seal the A-V openings. The avgs. and standard deviation of the percentage flows obtained were: coronary sinus, 36.4% [plus or minus]11.8%; the right auricle, 24.5% [plus or minus]65%; the right ventricle, 30.8% [plus or minus]5.4%; the left auricle, 1.4% [plus or minus]1.7%; the left ventricle 7.0% [plus or minus]3.3%. Details of technique and errors of method were discussed. The flow into the right ventricle via the Thebesian channels was shown to be of significant magnitude.

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