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  • Title: Optimal left ventricular lead placement for cardiac resynchronization therapy in postmyocardial infarction patients.
    Author: Muto C, Solimene F, Russo V, Nigro G, Rago A, Chianese R, Chiariello P, Ciardiello C, Caliendo L.
    Journal: Future Cardiol; 2018 May 01; 14(3):215-224. PubMed ID: 29767542.
    Abstract:
    AIM: To evaluate at a 12-month follow-up, the clinical and echocardiographic outcomes in postmyocardial infarction (MI) heart failure patients who underwent cardiac resynchronization therapy (CRT) device implantation. MATERIALS & METHODS: A total of 100 patients received a CRT device, and the study population was divided into three groups, according to the site of MI and left ventricular (LV) lead placed downstream of the ischemic area, as evaluated by echocardiography. RESULTS: At the end of the 12-month follow-up, we reported a general improvement of LV ejection fraction from 28 ± 7% to 35 ± 9% (p < 0.001) and a significant reverse remodeling: LV end-systolic volume changed from 147 ± 54 to 125 ± 63 (p = 0.001) with a 53% of echocardiographic responders. We also observed 67% of CRT responders in the group with optimal LV lead placement compared with 38% in the remaining population (p = 0.01). CONCLUSION: The optimal positioning of LV lead is a feasible method to improve the percentage of CRT responders in post-MI heart failure patients.
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