ID 110476
Title Transcription
シンエコー ドップラーホウ ニヨル ソウボウベンリン セッカイカ ニ トモナウ ベンリン キョウサク ノ ジュウショウド ヒョウカ
Title Alternative
Evaluation of mitral stenosis due to mitral annular calcification by Doppler echocardiography
Author
Shiraishi, Tatsuhiko Department of Internal Medicine and Clinical Reserch Laboratory, Tokushima Prefectural Miyoshi Hospital
Iuchi, Arata Department of Internal Medicine and Clinical Reserch Laboratory, Tokushima Prefectural Miyoshi Hospital
Niki, Miyako Department of Internal Medicine and Clinical Reserch Laboratory, Tokushima Prefectural Miyoshi Hospital
Okazaki, Michiyo Department of Internal Medicine and Clinical Reserch Laboratory, Tokushima Prefectural Miyoshi Hospital
Murata, Masahiko Department of Internal Medicine and Clinical Reserch Laboratory, Tokushima Prefectural Miyoshi Hospital
Inoue, Hiroshi Department of Internal Medicine and Clinical Reserch Laboratory, Tokushima Prefectural Miyoshi Hospital
Fujiwara, Souichiro Department of Internal Medicine and Clinical Reserch Laboratory, Tokushima Prefectural Miyoshi Hospital
Horie, Takahiro Department of Internal Medicine and Clinical Reserch Laboratory, Tokushima Prefectural Miyoshi Hospital
Yamamoto, Hiroshi Department of Internal Medicine and Clinical Reserch Laboratory, Tokushima Prefectural Miyoshi Hospital
Keywords
mitral annular calcification
mitral stenosis
pressure half time
continuity equation
Gorlin formula
tissue Doppler imaging
Content Type
Journal Article
Description
Recently, mitral annular calcification (MAC) is a common finding with increasing of elderly orrenal failure patients. Mitral stenosis secondary to MAC is not rarely observed. Pressure halftime method by continuous wave Doppler echocardiography is often used to evaluate the severityof the stenotic mitral valve due to MAC. But, the method for calculating correct mitral orifice areais not established. We performed transthoracic Doppler echocardiography and cardiac catheterizationin 15 patients with rheumatic mital stenosis and 10 with mitral stenosis due to MAC, and calculatedthe severity of the mitral stenosis by pressure half time (PHT), continuity equation methods andGorlin formula. Pulsed tissue Doppler imaging methods were used for evaluating left ventricular(LV) early diastolic wall motion velocities. Results were as follows. 1) The mitral orifice areas determinedby PHT method were lower than those by continuity equation methods or Gorlin formulain patients with mitral stenosis due to MAC, and significant correlation was observed in rheumaticmital stenosis between the mitral orifice areas obtained by PHT and continuity equation methods,but not in mitral stenosis due to MAC. 2) The peak early diastolic LV myocardial velocities alonglong and short axes decreased significantly in mitral stenosis due to MAC than those in rheumaticmital stenosis. In conclusion, as mitral orfice area determined from PHT method is strongly influencedby early diastolic LV dysfunction in mitral stenosis due to MAC, continuity equation methodshould be recommended.
Journal Title
四国医学雑誌
ISSN
00373699
NCID
AN00102041
Publisher
徳島医学会
Volume
56
Issue
6
Start Page
251
End Page
257
Sort Key
251
Published Date
2000-12-25
FullText File
language
jpn
TextVersion
Publisher