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英文誌(2004-)

Journal of Medical Ultrasonics

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2001 - Vol.28

Vol.28 No.07

Case Report(症例報告)

(J993 - J997)

ペースメーカー植え込み患者から聴取された楽音様雑音の音源の検出にドプラ心エコー法が有用であった1例

Pulsed Doppler Echocardiographic Detection of the Origin of Musical Murmurs in a Case of Pacemaker Implantation

紺田 利子1, 田辺 一明2, 八木 登志員1, 藤井 洋子1, 宇井 一世1, 川井 順一1, 谷 知子2, 盛岡 茂文2

Toshiko KONDA1, Kazuaki TANABE2, Toshikazu YAGI1, Youko FUJII1, Kazuyo UI1, Junichi KAWAI1, Tomoko TANI2, Sigefumi MORIOKA2

1神戸市立中央市民病院臨床検査技術部, 2神戸市立中央市民病院循環器内科

1Division of Clinical Laboratory, Kobe General Hospital, 2Division of Cardiology, Kobe General Hospital

キーワード : echocardiography, harmonic signal, musical murmurs, pacemaker implantation, pulsed Doppler

We report a case of systolic and diastolic musical murmurs that developed 4 years after DDD pacemaker implantation. Echocardiographic examination disclosed no evidence of serious pacemaker-related complications. Pulsed Doppler examination with a sample volume at the right ventricular portion of a pacemaker lead showed prominent harmonic signals. The timing of the signals was consistent with that of musical murmurs. We considered vibration of the pacemaker lead as a possible origin of the musical murmurs. Systolic and diastolic musical murmurs can develop without serious cause in a patient with a transvenous pacemaker. Pulsed Doppler examination was useful in detecting the origin of musical murmurs.