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  3. .博碩士學位論文
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  5. 周邊血管硬化程度與顱內外血管病變之關聯性
 
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周邊血管硬化程度與顱內外血管病變之關聯性

Other Title
Association of peripheral vascular sclerosis with intra- and extracranial vascular lesions
Type
thesis
Date Issued
2022-07-01
Author(s)
廖芝瑜
Advisor
謝芳宜
Subjects
系所名稱:公共衛生學系碩士班
Publisher
公共衛生學系碩士班
Description
口試委員:吳美滿 WU, MEEI-MAAN;張慶國 CHANG, CHIN-KUO;謝芳宜 HSIEH, FANG-I
網際網路,開放日期為2027-07-21
Abstract
背景:腦血管疾病造成的疾病負擔居高不下,因此在臨床表現之前及早發現腦血管病變對於預防腦血管疾病相當重要。動脈狹窄及彈性而降低是血管的早期病變,且大部分都尚未有臨床徵狀,常在嚴重的腦血管疾病出現時才被發現,過去研究指出肱踝脈波傳導速度(brachial ankle pulse wave velocity, baPWV)與踝肱指數(ankle brachial index, ABI)被視為周邊血管硬化程度且能預測心血管疾病的風險。然而,這些研究大多在高風險族群中進行,較少以一般族群為研究對象。因此本研究欲以在新光醫院參與健檢的一般族群探討周邊血管硬化程度與顱內外血管病變之關聯性。

研究方法:研究族群來自新光醫院2017年至2020年接受包含腦血管檢查的健檢一般人群且年齡在30歲以上,並排除曾有腦中風相關診斷者,最終共有4089人納入本研究。透過baPWV及ABI量測周邊血管硬化及狹窄的程度,並以頸部血管超音波、彩色穿顱超音波以及腦部磁振造影評估顱內外血管病變。接著以多變項羅吉斯迴歸分析周邊血管硬化程度與顱內外血管病變的危險對比值與95%信賴區間,並以接受者操作特徵曲線(Receiver Operating Characteristic Curve, ROC curve)之Youden index找出診斷顱內外血管病變之最佳切點,最後利用ROC curve之AUC、綜合判別改善指數(Integrated discrimination improvement, IDI)及淨重分類改善指數(Net reclassification improvement, NRI)評估加入周邊血管硬化程度是否能提升參考模型對於顱內外血管病變風險之預測能力。

研究結果:研究結果顯示控制相關危險因子後,周邊血管硬化程度與顱內外血管病變風險顯著相關。較高的baPWV者比起較低者,發生頸動脈硬化的風險為2.80倍;發生中大腦動脈狹窄的風險為2.68倍;發生白質病變的風險為1.32倍。低ABI(0.9)比起正常者(1.00<ABI<1.40),發生頸動脈硬化的風險為3.14倍;發生中大腦動脈狹窄的風險為2.49倍。最後,與參考模型相比,加入baPWV對於評估頸動脈硬化提升了50%的正確分組率;評估白質病變則提升了38%的正確分組率。

結論:將baPWV加入參考模型能顯著的提高預測頸動脈硬化、及白質病變的風險,藉由周邊血管硬化程度能提醒早期干預的時機,幫助臨床醫生未來在面對這些高風險個體時針對相關疾病進行早期發現早期治療,避免發生更嚴重的腦血管疾病。
URI
https://handle.ncl.edu.tw/11296/sh3vae
https://203.71.86.71/handle/123456789/10725

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