B-Blockers cause reduced LVF?

Posted By Julie on March 05, 1999 at 12:44:43:







I am on beta-blockers for frequent PACs with episodes of couplets.  They do not seem to be helping.  I had a recent stress-echo with only findings being Left ventricular function at the lower limits of normal and abnormal septal wall motion of "questionable" significance.
1.  Could beta-blockers be reducing my Left ventricular function as it was not reduced on an echo I had prior to beta blockers?
2.  Can you explain what might cause one to have abnormal septal motion?