What characterizes Coarse V Fib in comparison to Polymorphic V Tach?

Coarse ventricular fibrillation (V Fib) is characterized by irregular, chaotic electrical activity in the heart that produces a noticeable, erratic waveform on the ECG. This condition features large, disorganized oscillations that can be described as choppy. The amplitude of these waves is typically high, which sets it apart from other arrhythmias like polymorphic ventricular tachycardia (VT).

Polymorphic VT, on the other hand, has a distinct rhythm that shows variations in waveform shape and amplitude, but usually exhibits more regular, organized patterns compared to Coarse V Fib. This difference in overall waveform appearance is crucial; in Coarse V Fib, the waves are more pronounced and have higher peaks than those seen in polymorphic VT, yet they still maintain the disorganized, unpredictable nature of fibrillation.

Understanding these characteristics is vital for distinguishing between the two conditions, as accurate identification can affect treatment strategies in a clinical setting.