Comparison of the measured pre‐ejection periods and left ventricular ejection times between echocardiography and impedance cardiography for optimizing cardiac resynchronization therapy. Issue 2 (12th September 2016)

• Record Type: Journal Article
• Authors: Noda, Kazuki; Endo, Hideaki; Kadosaka, Takahide; Nakata, Takashi; Watanabe, Tasuku; Terui, Yosuke; Kajitani, Shoko; Monnma, Yuto; Sato, Kenjiro; Kanazawa, Masanori; Nakajima, Sota; Kondo, Masateru; Takahashi, Tohru; Nakamura, Akihiro; Nozaki, Eiji
• Is Part Of: Journal of arrhythmia. Volume 33:Issue 2(2017)
• Page Start: 130
• Page End: 133
• Publication Date: 2016-09-12
• Subjects: Cardiac resynchronization therapy -- Impedance cardiography -- Echocardiogram; Arrhythmia -- Periodicals; Cardiac pacing -- Periodicals; Arrhythmias, Cardiac; Arrhythmia; Cardiac pacing; Periodicals; Electronic journals; Periodicals; 616.128
• DOI: 10.1016/j.joa.2016.08.003
• Languages: English
• ISSNs: 1880-4276

Abstract

Abstract: Background: The pre‐ejection period (PEP) and left ventricular ejection time (LVET) are easily measured by impedance cardiography (ICG). We hypothesized that the PEP/LVET measured by ICG would correlate with that measured by echocardiography, and that PEP/LVET measured by ICG would be useful for cardiac resynchronization therapy (CRT) optimization. Methods: Newly CRT implanted patients were optimized by echocardiography. The PEP/LVET was measured by echocardiography and ICG in two different settings: optimized setting and right ventricle (RV)‐only pacing. Results: The PEP/LVET was significantly decreased in the optimized setting compared with that in RV‐only pacing (0.62±0.13 vs 0.75±0.16, p <0.05). The PEP/LVET values calculated by ICG and echocardiography were positively correlated ( r =0.553, p =0.003). Conclusion: ICG was useful for the optimization of CRT.