Tissue Doppler Imaging and Strain Doppler Imaging as Modalities for Predicting Clinical Improvement in Patients Receiving Biventricular Pacing
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概要
- 論文の詳細を見る
Background The purpose of this study was to determine the utility and efficacy of tissue Doppler imaging (TDI) and strain Doppler imaging (SDI) for evaluating ventricular synchrony and function, and for predicting the long-term clinical improvement in patients undergoing biventricular pacing (BVP). Methods and Results TDI and SDI were performed before and <1 month after initiating BVP in 17 patients with advanced heart failure. An intraventricular conduction delay between the left ventricular (LV) septal and lateral walls was measured by TDI. The average LV strain (LV-strain) was calculated from data obtained at the center of 6 regions of the LV (base and mid-point between the basal and apical portions, and the mid-point between these 2 points on the septal and lateral walls). During a 23±7 month follow-up period, 12 patients improved clinically and did not require re-hospitalization for heart failure (responder group), but the remaining 5 did not improve (nonresponder group). Before BVP, the intraventricular conduction delay was greater in the responder group than in the nonresponder group (p<0.01), but after BVP, it did not differ between the 2 groups. LV-strain improved after BVP in the responder group but not in the nonresponder group (p<0.05). Conclusion A high intraventricular conduction delay before BVP and decreased strain shortly after BVP may predict long-term clinical improvement in patients undergoing this treatment.
- 社団法人日本循環器学会の論文
- 2005-01-20
著者
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内藤 滋人
Division Of Cardiology Gunma Prefectural Cardiovascular Center
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Kawai Yasuyuki
Department Of Cardiology Kanazawa Medical University
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Taniguchi Koichi
Division of Cardiology, Gunma Prefectural Cardiovascular Center
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Nogami Akihiko
Division of Cardiology, Yokohama Rosai Hospital
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Ito Sachiko
Division of Cardiology, Gunma Prefectural Cardiovascular Center
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Itou Sachiko
Gunma Prefectural Cardiovascular Center
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Oshima Shigeru
Division of Cardiology, Gunma Prefectural Cardiovascular Center
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Nogami Akihiko
Cardiology Divison Yokohama Rosai Hospital
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Miyaji Kohei
Division of Cardiology, Okayama Medical Center
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Naito Shigeto
Division Of Cardiology Gunma Prefectural Cardiovascular Center
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Tada Hiroshi
Division Of Cardiology Gunma Prefectural Cardiovascular Center
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YAMADA Minoru
Division of Cardiology, Department of Diagnostic Radiology, Keio University School of Medicine
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Oshima Shigeru
Division Of Cardiology Gunma Prefectural Cardiovascular Center
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TOIDE Hiroyuki
Division of Cardiology, Gunma Prefectural Cardiovascular Center
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OKANIWA Hiroki
Division of Cardiology, Gunma Prefectural Cardiovascular Center
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Mani Hiroki
Division Of Cardiology Gunma Prefectural Cardiovascular Center
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Okaniwa Hiroki
Division Of Cardiology Gunma Prefectural Cardiovascular Center
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Kurosaki Kenji
Division Of Cardiology Gunma Prefectural Cardiovascular Center
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Ito Sachiko
Division Of Cardiology Gunma Prefectural Cardiovascular Center
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Miyaji Kohei
Division Of Cardiology Okayama Medical Center
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Miyaji Kohei
Division Of Cardiology National Hospital Organization Okayama Medical Center
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Kurosaki Kenji
Department Of Cardiology Jichi Medical School
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Maruyama Hiroko
Division Of Cardiology Gunma Prefectural Cardiovascular Center
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Higuchi Rumi
Division of Cardiology, Gunma Prefectural Cardiovascular Center
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Kobayashi Yasuyuki
Division of Cardiology, Gunma Prefectural Cardiovascular Center
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Yamada Minoru
Division Of Cardiology Gunma Prefectural Cardiovascular Center
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Ohshima Shigeru
Gunma Prefectural Cardiovascular Center
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Tada Hiroshi
Division Of Cardiology Clinical Electrophysiology Section University Of Michigan
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Higuchi Rumi
Division Of Cardiac Echo Gunma Prefectural Cardiovascular Center
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Kusano Kengo
Department Of Cardiovascularmedicine Okayama University
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Kobayashi Yasuyuki
Department Of Cardiology Kanazawa Medical University
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Nogami Akihiko
Division Of Cardiology Department Of Internal Medicine Tsuchiura Kyodo Hospital
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Kawai Yasuyuki
Department Of Cardiology Faculty Of Medical Sciences Kanazawa University School Of Medicine
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Kobayashi Yasuyuki
Echo Laboratory Gunma Prefectural Cardiovascular Center
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Miyaji Kohei
Division Of Cardiology Gunma Prefectural Cardiovascular Center
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Taniguchi Koichi
Division Of Cardiology Gunma Prefectural Cardiovascular Center
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