Key words: atrioventricular dissociation, cardiac hypertrophy, mitral valve insufficiency, electrocardiography, avian, ring-necked pheasant, Phasianus colchicus
Based on these ECG findings, a diagnosis was made of complete atrioventricular dissociation in this pheasant (Fig 1).
In our post-treatment follow-up, chronic Chagas disease is indicated in three patients on the basis of these ECG findings: left anterior fascicular block, atrioventricular dissociation
and intermittent left bundle-branch block, and right bundle-branch block and left posterior fascicular block, despite there being no clinical manifestation of these conditions.
Thus, the atrioventricular dissociation
may not be complete.
Some topics are not covered, however, such as second degree atrioventricular block and atrioventricular dissociation