... treadmill exercise test underwent atrial pacing to the predicted maximal heart rate. The pacing was maintained at this peak rate for 10 min, then ceased. Blood samples of the ascending aorta and coronary sinus were drawn simultaneously at rest, at 2 and 10 min of peak-pacing, and 5 and 10 min after...

...H. Emanuelsson; K. Caidahl; Å. Hjalmarson; S. Holmberg; S.-E. Svensson; F. Waagstein; A. Waldenström 1. A haemodynamic and myocardial metabolic study was performed to compare effects of maximal atrial pacing and the cold pressor test (CPT) in patients with angina pectoris. Twelve patients (group I...

...A. R. Thomassen; T. T. Nielsen; J. P. Bagger; P. Henningsen 1. Myocardial exchanges of plasma alanine, glutamate, citrate, lactate, glucose and free fatty acids were determined in 17 patients with coronary artery disease and in seven control subjects during rest, atrial pacing and recovery. 2...

...H. Valette; B. Raffestin; A. Lockhart 1. We have investigated left ventricular function in 25 selected patients with chronic bronchitis by use of atrial pacing and plasma volume expansion. Nine subjects had a past history of acute respiratory failure. None had either clinical...