Effects of lignocaine on bidirectional tachycardia and on digitalis-induced atrial tachycardia with block.

Most recent studies discussing tachycardias with alternating QRS polarity have referred to those known as torsade de pointes. This report, in contrast, deals with bidirectional tachycardia and the effects of lignocaine on 10 patients with this arrhythmia. Three of the patients also had digitalis-induced atrial tachycardia with block.

Respiratory suppression and swallowing from introduction of fluids into the laryngeal region of the lamb.

Introduction of 0.9% NaCl or undiluted fetal tracheal fluid into the laryngeal region produced no suppression of breathing in lambs during the perinatal period. As NaCl or tracheal fluid solutions were increasingly diluted with water, progressively greater respiratory suppression associated with rapid swallowing was observed.

[Pedagogical experience and learning models in neurologic semiology].

Programmed teaching of neurologic semiology, charted in agreement to subsequent learning in clinical neurology, is conceived. The basis of the pedagogic system consists of respecting the systems that bind physiologically among themselves. The goal is the creation of areas of comprehension, dramatizing common functions and signology.

[What, to whom and why are we teaching medicine].

The teaching of neurology as an entity within the concept of teaching in medicine is analized through the following questions: what are we teaching? To whom are we teaching? and why are we teaching? The first question concerns the pedagogical, sociological and psychological patterns used to elaborate locally-arranged goals for the creation of criteria and conduct. The second establishes the relationship between the influence of the technical-industrial adult generation on the present university generation and the reappraisal of human values through new pedagogic techniques. The third establishes the supply and demand process of assistant teaching and research physicians; it also dwells on the influence of the residency programmes and research trends, and their repercussion on the methodology of the medical curriculum.