Micheli A, Medrano GA

Language: Spanish
References: 10
Page: 237-240
PDF size: 174.44 Kb.

ABSTRACT

An electrocardiogram corresponding to an obese, hypertensive woman 52 years old, is presented. It shows a left bundle branch block of advanced degree and the ÂQRS_F at 70°. In this case, the key of the electrocardiographic diagnosis is that the second vector originated by depolarization of the lower left septal mass is oriented downward, which is unusual in the presence of left bundle branch block. This fact may be due to a marked clockwise rotation. Therefore, it is possible that right ventricle pathologic conditions be associated to those involving the left ventricle. Cardiopulmonary tests determined the existence of a chronic pulmonary emphysema. Furthermore the study of this case shows the usefulness of vectorcardiographic exploration in clinical practice.

REFERENCES

1. Sodi Pallares D: Le nuove basi della elettrocardiografia. Padua. Piccin Ed., 1959.

2. Sodi Pallares D, Bisteni A, Fishleder BL, Medrano GA: Importance of the unipolar morphologies in the interpretation of the electrocardiogram: The theoretical basis of the unipolar morphologies and its correlation with vectorial analysis, with cardiac activation and with the potential variations at the epicardial surface of the heart. Am Heart J 1959; 57: 590-605.

3. Medrano GA, Bisteni A, Brancato RW, Pileggi F, Sodi Pallares D: The activation of the interventricular septum in the dog’s heart under normal conditions and in bundle branch block. Ann NY Acad Sci 1957; 65: 804-817.

4. Sodi Pallares D: New bases of electrocardiography. St Louis Miss. The CV Mosby Co, 1956: 404.

5. de Micheli A, Medrano GA, Sodi Pallares D: Etude électrovectocardiographique des blocs de branche chez le chien à la lumière du processus d’activation ventriculaire. Acta Cardiol 1963; 18: 483-514.

6. de Micheli A, Medrano GA, Bisteni A, Sodi Pallares D: Estudio experimental electrovectocardiográfico en diferentes grados de bloqueo de rama. Memorias del IV Congreso Mundial de Cardiología. México. Ed. Galve S.A., 1963; Vol. II: 327-339.

7. de Micheli A, Medrano GA: Los trastornos de la conducción intraventricular. Arch Inst Cardiol Mex 1987; 57: 247-258.

8. de Micheli A, Medrano GA: Enfoque electrofisiológico del diagnóstico de bloqueos ventriculares izquierdos no complicados y complicados. Arch Inst Cardiol Mex 1996; 66: 70-82.

9. de Micheli A, Medrano GA: La exploración electrovectocardiográfica en la cardiopatía de origen pulmonar. Arch Inst Cardiol Mex 1987; 57: 85-96.

10. de Micheli A, Medrano GA: ¿Es útil el vectocardiograma en clínica? Arch Inst Cardiol Mex 1997; 67: 505-510.