查詢結果分析
來源資料
相關文獻
- Detection of Diastolic Atrioventricular Valvular Regurgitation by Color Doppler Flow Mapping
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頁籤選單縮合
題名 | Detection of Diastolic Atrioventricular Valvular Regurgitation by Color Doppler Flow Mapping=利用彩色杜卜勒超音波偵測心臟舒張期時房室瓣逆流 |
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作者姓名(中文) | 熊名琛; | 書刊名 | 醫學研究 |
卷期 | 8:6 1988.05[民77.05] |
頁次 | 頁377-385 |
分類號 | 415.3024 |
關鍵詞 | 心臟; 杜卜勒; 房室瓣; 逆流; 偵測; 彩色; 舒張; 超音波; |
語文 | 英文(English) |
中文摘要 | 彩色杜卜勒超音波不但提供非侵襲性評估心臟內的血流變化而且許多文獻已證實它對於偵測瓣膜的逆流非常敏感。我們研究了10位完全性心房室間傳導阻滯的病患,及10位正常人作為對照組。所有完全性心房室間傳導阻滯的病人其彩色杜卜勒超音波都呈現輕度舒張期僧帽瓣或三尖瓣逆流現象。發生逆流正確的時間和持續性都可用彩色M型超音波和脈動性杜卜勒加以證實。10位病患共7位有舒期時三尖瓣閉鎖不全,而所有患者都有預張期時僧帽瓣逆流。其中一位病患接受心導管檢查,同時記錄左心室壓力和肺靜脈楔壓,心室的a波比左心房楔壓高出2毫米汞柱。結論:1)獲張期時產生的僧帽瓣或三尖瓣逆流其嚴重度較輕。2)產生舒張期僧帽瓣逆流時,左心室舒張末期壓力高於左心房末期舒張壓力。3)造成舒張期時房室瓣的逆流是生理狀況而非心臟結構的疾病。 |
英文摘要 | Color Doppler provides noninvasive evaluation of blood flow through cardiac values, and has been shown to be sensitive in the detection of valvular regurgitation. We studied 10 consecutive patients, all with complete heart block. Ten individuals with a normal PR interval served as control subjects. All patients with A-V (Atrio-ventricle) block had color Doppler evidence of a mild degree of diastolic mitral regurgitation or tricuspid regurgitation. Precise timing and duration of diastolic mitral or tricuspid reguargitation was confirmed by color M-mode and pulsed Doppler and diastolic tricuspid regurgitation was found in 7 of these. Diastolic mitral regurgitation was detected in all 10 patients with A-V block. One patient underwent diagnostic cardiac catheterization with simulataneous recording of left ventricular and pulmonary wedge pressure. A reversal in the AV gradient of 2 mmHg was seen during the “a” wave of the ventricular pressure wave. In conclusion: 1) diastolic mitral or tricuspid regurgitation is mild in degree. 2) In diastolic mitral regurgitation, LVEDP (left ventricle end-diastolic pressure) is higher than LAEDP (left atrium end-diastolic pressure). 3) diastolic AV valve regurgitation is physiologic in nature and not due to structural heart disease. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。