A Clinical and Physiologic Appraisal

A new physiologic race

An Appraisal of Technic , Physiologic Principles , and Clinical Value By RICHARD

T HE various modalities used in the study of the heart and circulation contribute different types of information. Some, such as electrocardiography and fluoroscopic or roentgenographic study, have such broad spheres of usefulness that they are almost routinely employed. Other diagnostic procedures have not gained wide usage either because of expense of equipment, difficulty in clinical applicat...

Clinical and Physiologic Relationships

MUCH has been written relative to the physiologic abnormalities produced by mitral stenosis and insufficiency. Most of the data and the concepts derived therefrom have been obtained by right heart catheterization.'--8 The introduction of left heart and combined heart catheterization9-19 has greatly enhanced the value of physiologic study in patients with rheumatic mitral valve disease and has p...

A clinical appraisal

A technique for determining the characteristics of impulses from implanted cardiac pacemakers with external methods is reviewed, and its value in detecting pacemaker failures is discussed. The resultsfrom a 2-year application with 6ii controls in clinical routine are presented. Sixteen out of b*42 defective pacemakers could be detected before symptoms or electrocardiographic signs of pacing fai...

Transferrin: physiologic behavior and clinical implications.

The transferrin iron transport system, along with its procurement sites and delivery receptors, provides a highly effective means of satisfying internal iron requirements. Iron uptake by individual tissues is determined by their receptor number, by the relative amounts of monoferric and diferric transferrin in circulation, and by the amount of available iron in donor tissues. Although the modus...