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Usefulness of Intracardiac Local Ventricular Electrogram to Predict Responders in Patients Undergoing Cardiac Resynchronization Therapy
https://showa.repo.nii.ac.jp/records/514
https://showa.repo.nii.ac.jp/records/514a3e466f4-c46b-4abc-adf5-3cfd947d223a
名前 / ファイル | ライセンス | アクション |
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S29_131.pdf (218.1 kB)
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Item type | 学内発行雑誌 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2017-12-07 | |||||
タイトル | ||||||
タイトル | Usefulness of Intracardiac Local Ventricular Electrogram to Predict Responders in Patients Undergoing Cardiac Resynchronization Therapy | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ | departmental bulletin paper | |||||
著者 |
ONUMA, Yoshimasa
× ONUMA, Yoshimasa× KAWAMURA, Mitsuharu× YOSHIKAWA, Kosuke× GOKAN, Toshihiko× OGAWA, Ko× NAKAMURA, Yuya× OCHI, Akinori× INOKUCHI, Koichiro× MUNETSUGU, Yumi× ONUKI, Tatsuya× ITO, Hiroyuki× WATANABE, Norikazu× KOBAYASHI, Youichi |
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書誌情報 |
The Showa University journal of medical sciences 巻 29, 号 2, p. 131-139, 発行日 2017-06 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Cardiac resynchronization therapy (CRT) is a well-established, efficient strategy for medically-refractory congestive heart failure (HF) with ventricular conduction disturbances. However, about 30% of patients who undergo CRT do not receive any benefit. Therefore, we investigated the usefulness of the QRS-left ventricle (LV) interval for predicting responders during CRT implantation. This study included 66 patients who underwent CRT implantation. The definition of responder was a ≥15% reduction in LV end-systolic volume or ≥20% increase in LV ejection fraction. The QRS-LV interval was measured from the beginning of the body surface electrocardiogram QRS complex to the LV potential recorded by LV leads. We analyzed the correlations between the QRS-LV intervals and CRT responders, admission for HF and mortality. The patients were 67±12 years old, and their mean LV ejection fraction was 26.3%±8.3%. During follow-up (27.2±19.9 months), 27 patients were admitted for HF (40.1%), and 17 died (25.7%); the median QRS-LV interval was 103±33 msec. Patients were divided into 2 groups: wide QRS-LV (>103 msec), and narrow QRS-LV (<103 msec). The wide QRS-LV group had a lower mortality rate than the narrow QRS-LV group (77% vs. 53%, P<0.05). In patients with dilated cardiomyopathy, the QRS-LV interval was significantly wider in responders, compared to non-responders (112±9.2 vs. 80.0±10 msec, P<0.05). The QRS-LV interval did not correlate with CRT responders or admission for HF. The mortality rate was lower in patients with wide QRS-LV intervals, compared to narrow QRS-LV intervals. Furthermore, a wide QRS-LV interval might be a predictor for CRT responders in patients with dilated cardiomyopathy. | |||||
DOI | ||||||
関連識別子 | 10.15369/sujms.29.131 | |||||
出版者 | ||||||
出版者 | Showa University Society | |||||
ISSN | ||||||
収録物識別子 | 0915-6380 | |||||
著者版フラグ | ||||||
出版タイプ | VoR |