Triphasic Mitral Inflow Documented by Doppler Echocardiography and Cardiac Catheterization: A Case Study
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- Misumi Ikuo
- Department of Cardiology, Kumamoto Saishunsou Hospital, Japan
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- Ebihara Kenji
- Department of Cardiology, Kumamoto Saishunsou Hospital, Japan
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- Akahoshi Ryuichiro
- Department of Cardiology, Kumamoto Saishunsou Hospital, Japan
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- Rokutanda Taku
- Department of Cardiology, Kumamoto Saishunsou Hospital, Japan
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- Sakai Ayako
- Department of Physiology, Kumamoto Saishunsou Hospital, Japan
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- Sanjo Mayumi
- Department of Physiology, Kumamoto Saishunsou Hospital, Japan
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- Takanaga Megumi
- Department of Physiology, Kumamoto Saishunsou Hospital, Japan
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- Maeda Haruna
- Department of Physiology, Kumamoto Saishunsou Hospital, Japan
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- Dosaka Akihiro
- Department of Neurology, Hikarigaoka Clinic, Japan
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An 85-year-old woman with hypertension was referred to our hospital for the management of chest pain. Echocardiography showed left ventricular (LV) hypertrophy with impaired systolic function (ejection fraction, 40%) and mitral regurgitation. Pulsed Doppler echocardiography for checking mitral inflow showed triphasic mitral inflow velocity. Simultaneous recording of the LV and pulmonary artery wedge (PAW) pressures showed a high mean PAW pressure with a prominent v wave. The LV pressure showed a temporary elevation in early diastole; it was unusually decreased in mid-diastole, and finally was elevated to such an extent that it exceeded PAW pressure. In this patient, the mid-diastolic decrease in LV pressure, despite the presence of simultaneous LV filling flow, cannot be explained by conventional pressure-volume relation; rather it can be attributed to the abrupt increase in the inflow volume due to the impaired diastolic function. This case shows the characteristics of triphasic mitral inflow in patients with diastolic dysfunction.<br>
収録刊行物
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- Internal Medicine
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Internal Medicine 50 (6), 581-584, 2011
一般社団法人 日本内科学会
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詳細情報 詳細情報について
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- CRID
- 1390001204871093888
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- NII論文ID
- 130000649889
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- ISSN
- 13497235
- 09182918
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- 本文言語コード
- en
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- データソース種別
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- JaLC
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可