Lbbb / Cardiomyopathy Ef 45-50%


Asked by SLCCM0917

Lbbb / Cardiomyopathy Ef 45-50%

As of my current diagnosis, I have cardiomyopathy --- Left Bundle Branch Block (LBBB), Slightly Below Normal Left Systolic Function, Ejection Fraction at 45-50%. My man concern is the fact that I never had the LBBB when first diagnosed with Cardiomyopathy, which was almost 3 years ago. About 12 months ago, my LBBB did not show up on an EKG at the ER, then a month later it still was NOT present at the Cardiologist. He did a stress test and it appeared within minutes. Now it shows up all the time. What gives? I am told to live my life and if any symptoms to worry then, but not do I do that? Does anyone know more about this connection or lack of (LBB and cardiomyopathy?) Thanks. Also, 37 year old male, about 15lbs overweight according to basic scale BMI, eat good, workout 4-5 days a week. ??? Also, I feel like I get tired easily and my breathing feels weird. LIke I can't get a comfortable relaxing breathe at times. Nothing deep and full. Argh!


Hi SLCCM0917:

Here are common causes of LBBB:

  • Aortic Stenosis
  • Dilated cardiomyopathy
  • Acute myocardial infarction
  • Extensive coronary artery disease
  • Primary disease of the cardiac electrical conduction system
  • Long standing hypertension leading to aortic root dilatation and subsequent aortic regurgitation

According to the European Heart Journal: "The prevalence of conduction disturbances, particularly left bundle branch block (LBBB), is strongly correlated with age and with the presence of cardiovascular disease."

With the disease progression of cardiomyopathy a lot of times you will see LBBB, so that is why it may be showing up now rather than earlier. I strongly recommend you visiting with your cardiologist so he/she can better explain your diagnosis, every case is individualized.

As for the lung/breathing issue, you may want to see your family doctor to be evaluated. He/She can decide if there is concern and if they would recommend you to see a specialist or if they feel further tests should be ran.

Take care,

Tara, RN