Figure 3
From: Heart rate variability analysis in sheep affected by transmissible spongiform encephalopathies
Electrocardiogram of a classical BSE-infected sheep showing cardiac arrhythmia. ECG of a 28 month-old Suffolk wether orally dosed with 5 g of ovine BSE brain homogenate (animal J196), which displayed clinical signs of BSE and presented with PrPsc accumulation in the brain. P and T waves and the QRS complex are clearly identifiable. R-R intervals are marked above the ECG. The R-R interval c (0.94 sec) is almost twice as long as the previous two intervals, a (0.53 sec) and b (0.54 sec), which is close to the characteristics of sinus arrest.