Lara,
Thanks for the post.
PVCs are common even without cardiomyopathy. Depending on the mechanism underlying cardiomyopathy, PVCs may be more frequent. There of course is a lot of variability in the disease since there are multiple causes of cardiomyopathies.
Dizziness can be caused by a large number of things both cardiac and non cardiac in etiology. I would not really think his EF dropped. However, he should be evaluated for his symptoms.
Medication intolerance occurs as medications are altered in any disease. It takes several weeks for the full effects of medications to be realized so I would think that this is probably due to his recent changes.
good luck
Has your brother's CM been correlated to pvcs? I developed CM as a result of frequent (thousands/day) pvcs. It is not common, but it does happen. Once the pvcs were treated (ablated), the CM resolved.
He seems to be tolerating lisinopril for several weeks and then suddently lightheadnedness and low blood pressure.
Yes, we read few of your responses and we are encorouged by it.
The cardiologists mentioned the PVC causing cardiomyopathy but they are not sure. As I am reading, cardiomyopathy usually causes PVCs and it is related to scar tissue. His PVCs were (per report) not originating from the scar. So we are not sure if that means anything, eg good or bad signs and how many different types of PVCs there are.