BIO120H1 Lecture Notes - Lecture 3: Ventricular Fibrillation, Atrial Flutter, Atrial Fibrillation
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BIO120H1 Full Course Notes
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The ecg traces created by this condition are strange; the lines are saw-tooth or: one of the consequences of a branch bundle block is that the ventricles will no longer. Rapid rates of electrical excitation and contraction in either of these areas will: flutter is more benign (gentle), while fibrillation is more dangerous, particularly in the lead to these conditions ventricles. In atrial flutter, the rapid rate of electrical excitation leads to an enhanced number of p-waves: if these p-waves were to trigger a qrs complex, then heart rate would be highly elevated (between 200-300 beats per minute) Thus, actual heart (ventricular) function is not affected to a huge extent by atrial. In atrial fibrillation, the electrical activity in the atria becomes extremely chaotic and rapid: this can result in different parts of the atria depolarizing and contracting at different flutter times.
