TY - JOUR
AU - J. C. Williams , T. P. O'Donovan , L. Cronin , and E. H. Wood
AB -  B. O’DONOVAN, WOOD3 Foundation, Minnesota, JOHN C. P. WILLIAMS2 T. PAUL LUCILLE CRONIN, EARL H. Section Physiology, Mayo Clinic Mayo Mayo Graduate School Medicine, University Rochester, Minnesota C. P., T. PAUL B. O'DONOVAN, LUCILLE H. WOOD. rnfruence sequence atrial ventricular sysltoh on value. J Appl. Physiol. I g67.A concentric catheter assembly was 22 (4): 786-792. passed into the left heart through the fossa ovalis. The inner catheter for EGG-synchronized injections indocyanine green into the left ventricle was positioned so that its spray tip was 0.5-2.0 cm downstream to the . The outer catheter for sampling dilution curves was positioned so that its tip was 0.5-LO cm upstream to the . Slight retrograde flow indicator was detected uniformly in dogs with normal sinus rhythm with these catheter positions, but not when the positions were separated appreciably farther. The atria ventricles were driven by coupled pacemakers in any desired temporal sequence. Varying the sequence atria1 ventricular contractions from normal to synchronous, or reverse sequence, while the heart rate ranged from 60 to 200 beats/min caused increases in atriaj. pressures decreases in output. However, a systematic effect on the efficiency could not be demonstrated. Similarly, when the atria were fibrillating no 
TI - Influence of sequence of atrial and ventricular systoles on closure of mitral valve
JF - Journal of Applied Physiology
DA - 1967-04-01
UR - https://www.deepdyve.com/lp/the-american-physiological-society/influence-of-sequence-of-atrial-and-ventricular-systoles-on-closure-of-B70LVYAaFS
VL - 22
IS - 
DP - DeepDyve
ER -