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題 名 | Echocardiographic changes following balloon valvuloplasty in valvular pulmonic and aortic stenosis=氣球擴張術後肺動脈及主動脈瓣膜狹窄之超音波心圖變化 |
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作 者 | 徐英輝; | 書刊名 | 中華民國小兒科醫學會雜誌 |
卷 期 | 30:5 民78.09-10 |
頁 次 | 頁290-298 |
分類號 | 415.3024 |
關鍵詞 | 氣球擴張術; 瓣膜狹窄; 肺動脈; 主動脈; 超音波心圖; |
語 文 | 英文(English) |
中文摘要 | 自民國74年1月至民國75年12月間,著者等使用經皮氣球導管瓣膜擴張術治療19例先天性肺動脈瓣膜狹窄與2 例先天性主動脈瓣膜狹窄,年齡為20天至12歲。本文報告使用M型、雙面超音波心圖和搏動性、連續性與色彩杜卜勒超音波心圖所檢查肺動脈瓣及主動脈瓣狹窄治療前後的變化。肺動脈瓣狹窄病例,M型超音波心圖檢查,治療前後無有意義變化。雙面超音波心圖,肺瓣膜圓頂狀由治療前16/19 (84%)降至治療後4/15(27%),呈有意義減少(P<0.001);限制瓣膜開啟情形也呈有意義減少(95%比13%,P<0.001); 但是治療前後肺瓣膜粗厚外觀與狹窄後擴張的情节形,呈無意義改變。搏動性與彩色杜卜勒超音波心圖檢查,治療前後狹窄瓣膜的亂流與馬賽克似亂流也沒有變化。19例中14例使用連續性杜卜勒超音波作治療後追蹤檢查,其平均壓力差為 16.0±10.2mmHg,而其心導管測得之右心室與肺動脈間壓力差由62.9±30.4 mmHg,治療後降至 21.0±10.5mmHg,由搏動性、連續性與彩色杜卜勒超音波心圖測出肺動脈瓣膜閉鎖不全者,原為1/4(25%),治療後為7/14(50%)。 兩例主動脈瓣狹窄,M 型、雙面超音波心圖,治療前後均無有意義變化。搏動性與彩色杜卜勒超音波心圖所測出狹窄後方亂流,治療後依然不變。1例於治療前即有輕度主動脈瓣閉鎖不全,治療後其嚴重度依舊,此由心血管攝影與杜卜勒證實。比較經由雙面超音波心圖與心血管攝影所估量之瓣膜直徑,具有相當好之相關關係 (r=0.912)。另外,14 例肺動脈瓣狹窄經杜卜勒超音波檢查測得之治療後壓力差與心導管檢查側得之壓力差具不錯相關關係(r=0.862)。 總結,雙面與杜卜勒超音波心圖檢查證實可正確使用於估量瓣膜直徑、檢查瓣膜狹窄和評估氣球導管瓣膜擴張術之效果。 |
英文摘要 | Ninteen patients with pulmonary valvular stenosis and two with aortic valvular stenosis, aged 20 days to 12 years, were studied before and after balloon dilatation valvuloplasty (BDV) by M-mode, 2-D, pulsed wave (PW) and continuous wave (CW) Doppler, and color flow mapping echocardiography. In those with pulmonary stenosis, a dome-shaped valve was found in 16(84%) of 19 cases before BDV, and the valve remained dome shaped only in 4(27%) of 15 after procedure (P<0.001). Restricted valve motion which was noted in 18(95%) of 19 before BDV, persisted only in 2(13%) of 15 after procedure (P<0.001). Thickening of the pulmonic valve and poststenotic dilatation of the main pulmonary artery stayed almost unchanged. The pressure gradient across the pulmonic valve measured by cardiac catheterization and CW Doppler agreed well (r=0.862). Echocardiographic evidence of pulmonary regurgitation was detected in 1(25%) of 4 patients before, and 7(50%) of 14 after BDV. In two patients with aortic stenosis, the echocaardiograms showed the valve was thickened and dome-shaped. Following BDV, echocardiographic evidence of mild aortic regurgitation was observed only in one patient who had had such a regurgitationn befor BDV. The diameter of the valve annulus measured on 2-D echo and angiocardiograms correlated well (r=0.912), and it stayed unchanged following BDV. It is concluded that 2-D and Doppler echocardiographic examinations proved to be useful in the measurement of valve annulus, delineation of stenotic semilunar valves and monitoring of the efficacy of BDV. |
本系統中英文摘要資訊取自各篇刊載內容。