Why the study?
Does right or left QRS axis deviation predict poor prognosis in heart failure patients with LBBB undergoing CRT?
Does right or left QRS axis deviation predict poor prognosis in heart failure patients with LBBB undergoing CRT?
In heart failure patients with LBBB receiving CRT, the presence of right or left axis deviation serves as an independent predictor of poor prognosis.
Right or left axis deviation in the presence of LBBB in HF patients undergoing CRT are independent predictors of poor prognosis.
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Perrotta et al. (2015) studied this question.
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