1. The functional significance of ventricular geometry for the transition from hypertrophy to cardiac failure. Does a critical degree of structural dilatation exist?

   • R. Jacob
   • R.W. Gülch

   Invited Editorial Pages: 423 - 429

2. Blood flow heterogeneity in the heart

   • A. Deussen

   Original contribution Pages: 430 - 438

3. Spatial heterogeneity of myocardial perfusion and metabolism

   • U.K.M. Decking
   • J. Schrader

   Original contribution Pages: 439 - 445

4. Heterogeneity of coronary vasomotion

   • C.P. Tiefenbacher
   • W.M. Chilian

   Original contribution Pages: 446 - 454

5. The relationship between regional blood flow and contractile function in normal, ischemic, and reperfused myocardium

   • R. Schulz
   • G. Heusch

   Original contribution Pages: 455 - 462

6. Endothelium-dependent vasodilatation in Sprague-Dawley rats with postinfarction hypertrophy: Lack of endothelial dysfunction in vitro

   • R.P. Brandes
   • T. Walles
   • A. Mügge

   Original contribution Pages: 463 - 469

7. Acute coronary vascular and myocardial perfusion effects of conjugated equine estrogen in the anesthetized dog

   • N.A. McHugh
   • A. Solowiej
   • G.F. Merrill

   Original contribution Pages: 470 - 476

8. Evaluation of cardiac structures and function in small experimental animals: Transthoracic, transesophageal, and intraventricular echocardiography to assess contractile function in rat heart

   • E.R. Schwarz
   • C. Pollick
   • R.A. Kloner

   Original contribution Pages: 477 - 486

9. Preconditioning preserves energy metabolism in prolonged low-flow ischemia

   • H.M. Hoffmeister
   • M. Ströbele
   • L. Seipel

   Original contribution Pages: 487 - 496