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1.
Arch. Fac. Med. Zaragoza ; 45(1): 24-33, abr. 2005. ilus
Article in Es | IBECS | ID: ibc-052796

ABSTRACT

El panorama actual de la convergencia en el Espacio Europeo de Educación Superior tiene en el profesor su principal activo. Su formación ha de dirigirse hacia lo que podría denominarse un “profesor estratégico”, es decir, un profesor que realice toda su actividad docente con una perspectiva estratégica. Ello implica, además, que transmita su manera de hacer y afrontar los problemas docentes en los diferentes espacios educativos como un “modelo”. En este artículo se plantean algunas orientaciones al respectos en los tres niveles que tiene toda actividad docente


The present state of the convergence in the European Space of Superior Education has in the profesor its main value. The formation of these professor has to go towards which could be denominated a “strategic professor”, that is to say, a professor who makes all his educational activity with a strategic perspective. It implies that he transmits his way to make and to confront the educational problems in the different educative spaces like a “model”. In this article some directions in the three levels of all educational activity are indicated


Subject(s)
Learning/classification , Learning/physiology , Problem-Based Learning/classification , Problem-Based Learning/methods , Problem-Based Learning/trends , Education/methods , Training Support/history , Training Support/methods , Problem-Based Learning/standards , Training Support/organization & administration , Training Support/standards , Training Support/trends , Faculty/standards , Faculty
3.
Am Heart J ; 130(3 Pt 1): 494-500, 1995 Sep.
Article in English | MEDLINE | ID: mdl-7661066

ABSTRACT

The efficiency of prophylactic antiarrhythmic treatment with amiodarone in reducing 1-year mortality in patients with reduced left ventricular ejection fraction ( < 35%) and asymptomatic ventricular arrhythmias (Lown classes 2 and 4) was investigated in a prospective, multicenter, randomized, controlled study. Among 127 patients who entered the study, 61 were assigned to no antiarrhythmic therapy (control group [CG] and 66 to amiodarone treatment (amiodarone group [AG]). Amiodarone was administered at a dosage of 800 mg/day for 2 weeks followed by 400 mg/day thereafter. A 12-month follow-up was completed for 106 patients (57 in the AG and 49 in the CG). Amiodarone reduced the overall mortality rate, which was 10.5% in the AG versus 28.6% in the CG (odds ratio [OR] 0.29; 95% confidence interval [CI] 0.10 to 0.84; log-rank test 0.02) and sudden death rate, which was 7.0% in the AG versus 20.4% in the CG (OR 0.29; 95% CI 0.08 to 1.00; log-rank test 0.04). Side effects were rare, and in only three patients did amiodarone treatment have to be discontinued.


Subject(s)
Amiodarone/therapeutic use , Death, Sudden, Cardiac/epidemiology , Tachycardia, Ventricular/drug therapy , Tachycardia, Ventricular/mortality , Ventricular Dysfunction, Left/drug therapy , Ventricular Dysfunction, Left/mortality , Ventricular Fibrillation/drug therapy , Ventricular Fibrillation/mortality , Aged , Argentina/epidemiology , Death, Sudden, Cardiac/prevention & control , Female , Follow-Up Studies , Humans , Incidence , Male , Middle Aged , Pilot Projects , Prospective Studies , Statistics as Topic
4.
Acta Physiol Pharmacol Latinoam ; 37(2): 227-33, 1987.
Article in English | MEDLINE | ID: mdl-3425340

ABSTRACT

An experimental model for dog sinoatrial node autoperfusion is proposed. A by-pass was performed between right internal mammary artery and right atrial dorsal artery. A blood flow of 2.5 +/- 0.15 ml/min was calculated from blood forward velocity measurements. The injection of either isoproterenol or verapamil into the by-pass was followed by rapid heart rate modifications. These heart rate changes occurred without detectable modifications on the electrical behavior of the remaining myocardium, as assessed by electrocardiogram and endocavitary electrogram recordings. This model leaves right coronary circulation intact. The intrathoracic by-pass reduces heat-losses and lessens the probability of blood clotting. The model is suitable for chronic studies.


Subject(s)
Perfusion/methods , Sinoatrial Node/physiology , Animals , Cardiac Catheterization , Coronary Vessels/surgery , Dogs , Electrocardiography , Female , Heart Rate/drug effects , Isoproterenol/administration & dosage , Male , Mammary Arteries/surgery , Verapamil/administration & dosage
5.
Acta physiol. pharmacol. latinoam ; 37(2): 227-33, 1987. ilus
Article in English | LILACS | ID: lil-44771

ABSTRACT

En el presente trabajo se propone un nuevo modelo experimental para la autoperfusión del nódulo sinusal canino, basado en el originalmente descripto por James y Nadeau, con modificaciones que, a nuestro juicio, lo hacen más ventajoso. Se realizó un cortocircuito entre las arterias mamaria interna y auricular dorsal derecha. Esta última, en un 82% de los perros, es la arteria dominante en la irrigación del nódulo. Midiendo la velocidad de avance del colorante se calculó el flujo sanguíneo del cortocircuito, que fue de 2.5ñ0.15 ml/m. Cuando se inyectaron en el "by-pass" tanto isoproterenol como verapamil, se produjeron rápidos cambios en la frecuencia cardíaca, sin que se observaran modificaciones apreciables en el comportamiento eléctrico del resto del miocardio. Ello se puede constatar a través del electrocardiograma y de los registros endocavitarios. Este modelo de autoperfusión sinusal deja la circulación coronaria intacta, a diferencia de James y Nadeau, que introduce el catéter en la arteria coronaria derecha. El cortocircuito intratorácico reduce la pérdida de calor y disminuye la posibilidad de aparición de coágulos dentro del catéter. El modelo es apropiado tambíen para estudios experimentales crónicos


Subject(s)
Dogs , Animals , Male , Female , Heart Rate/drug effects , Isoproterenol/pharmacology , Sinoatrial Node/physiology , Verapamil/pharmacology , Mammary Arteries/surgery , Arteries/surgery , Cardiac Catheterization , Perfusion/methods
6.
Article in English | BINACIS | ID: bin-52700

ABSTRACT

An experimental model for dog sinoatrial node autoperfusion is proposed. A by-pass was performed between right internal mammary artery and right atrial dorsal artery. A blood flow of 2.5 +/- 0.15 ml/min was calculated from blood forward velocity measurements. The injection of either isoproterenol or verapamil into the by-pass was followed by rapid heart rate modifications. These heart rate changes occurred without detectable modifications on the electrical behavior of the remaining myocardium, as assessed by electrocardiogram and endocavitary electrogram recordings. This model leaves right coronary circulation intact. The intrathoracic by-pass reduces heat-losses and lessens the probability of blood clotting. The model is suitable for chronic studies.

7.
Acta physiol. pharmacol. latinoam ; 37(2): 227-33, 1987. ilus
Article in English | BINACIS | ID: bin-31589

ABSTRACT

En el presente trabajo se propone un nuevo modelo experimental para la autoperfusión del nódulo sinusal canino, basado en el originalmente descripto por James y Nadeau, con modificaciones que, a nuestro juicio, lo hacen más ventajoso. Se realizó un cortocircuito entre las arterias mamaria interna y auricular dorsal derecha. Esta última, en un 82% de los perros, es la arteria dominante en la irrigación del nódulo. Midiendo la velocidad de avance del colorante se calculó el flujo sanguíneo del cortocircuito, que fue de 2.5ñ0.15 ml/m. Cuando se inyectaron en el "by-pass" tanto isoproterenol como verapamil, se produjeron rápidos cambios en la frecuencia cardíaca, sin que se observaran modificaciones apreciables en el comportamiento eléctrico del resto del miocardio. Ello se puede constatar a través del electrocardiograma y de los registros endocavitarios. Este modelo de autoperfusión sinusal deja la circulación coronaria intacta, a diferencia de James y Nadeau, que introduce el catéter en la arteria coronaria derecha. El cortocircuito intratorácico reduce la pérdida de calor y disminuye la posibilidad de aparición de coágulos dentro del catéter. El modelo es apropiado tambíen para estudios experimentales crónicos (AU)


Subject(s)
Dogs , Animals , Male , Female , Heart Rate/drug effects , Isoproterenol/pharmacology , Sinoatrial Node/physiology , Verapamil/pharmacology , Mammary Arteries/surgery , Arteries/surgery , Cardiac Catheterization , Perfusion/methods
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