Impaired Atrial Contraction in Patients With Atrial Flutter and Gradual Recovery After Cardioversion
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概要
- 論文の詳細を見る
The risk of thromboembolism after cardioversion of atrial flutter is controversial. The present study provides evidence for blood stasis in the atria of patients with atrial flutter and for gradual recovery of atrial contraction after cardioversion, which justifies prophylactic treatment at cardioversion, as for atrial fibrillation. We examined atrial thrombi and peak flow velocity in the left atrial appendage as an index of blood stasis in 5 consecutive patients with atrial flutter. Transesophageal echocardiography revealed a thrombus in 1 patient, and peak flow velocity in the left atrial appendage was inversely correlated with left atrial dimension(r=-0.90, p<0.05). After restoration of sinus rhythm, transmitral flow velocity in late diastole was also examined to evaluate the recovery of atrial contraction. The recovery of transmitral flow velocity the next day and 1 week after cardioversion was correlated with flow velocity in the left atrial appendage before cardioversion(r=0.89, p<0.05;r=0.97, p<0.01, respectively). These findings suggest that some patients with atrial flutter have impaired atrial contraction and that prolonged impairment after cardioversion is also possible. Atrial enlargement and low flow velocity in the atrial appendage were predictive factors for such patients.
- 社団法人日本循環器学会の論文
- 1997-12-20
著者
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Saito Muneyasu
Omiya Medical Center Jichi Medical School
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KASAHARA HIROSHI
Department of Applied Chemistry, School of Science and Engineering, Waseda University
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Yaginuma Toshio
Omiya Medical Center Jichi Medical School
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Kobayashi Nobuhiko
Depart. Dermatol. Nara Medical Univ.
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Kobayashi Nobuhiko
Department Of Internal Medicine Yodakubo Hospital
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Ochi Tomio
Department Of Internal Medicine Yodakubo Hospital
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Kasahara Miho
Department of Internal Medicine, Yodakubo Hospital
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Ushimaru Hiroyasu
Department of Internal Medicine, Yodakubo Hospital
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Kasahara Miho
Department Of Internal Medicine Yodakubo Hospital
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Ushimaru Hiroyasu
Department Of Internal Medicine Yodakubo Hospital
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Kasahara Hiroshi
Department Of Applied Chemistry School Of Science And Engineering Waseda University
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Kasahara Hiroshi
Department Of Internal Medicine Yodakubo Hospital
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