シャドーイング練習: SVINutes: Pulsatile Tinnitus - 動画で英語スピーキングを学ぶ

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1
Hello, my name is Dr. Fazeev Siddiqui.
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I'm a clinical adjunct professor at the University of Michigan at Michigan State University.
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Today, I will guide you through the evaluation of pulsatile tinnitus, a condition that can reveal critical underlying vascular abnormalities.
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Pulsed-style tinnitus is a rhythmic sound often in sync with the heartbeat.
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Unlike common tinnitus, typically a ringing sound, pulsed-style tinnitus is often caused by vascular abnormalities that create vibrations transmitted to the ear.
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Pulse slide tinnitus can be heard as whooshing, thumping, or whooping noises.
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A thorough assessment is crucial.
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The first step, always take a comprehensive history.
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Ask about the timing and onset and if it's unilateral or bilateral.
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Next, move to the physical exam.
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Pay close attention to blood pressure as hypertension can contribute.
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Don't forget to auscultate the neck and skull for any bruise, indicating turbulent blood flow pointing to an underlying vascular issue.
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If the initial assessment is concerning, the next step is imaging.
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A brain MRI with MR angiography
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or a CT angiogram is typically the first line modality to evaluate for vascular abnormalities like arteriovenous malformation or dural fistula.
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A diagnostic cerebral endogram can be performed if there is a strong suspicion on screening non-invasive imaging.
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Common causes include arteriovenous malformation, dural arteriovenous fistula, and carotid artery stenosis.
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Other less common causes include venous sinus stenosis, sigmoid diverticulum, aberrant carotid artery, and cerebral aneurysm.
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Recognizing these early can prevent severe complications like a stroke or hemorrhage.
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A dual arterial systula is an abnormal connection between arteries and veins within the dual matter.
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This bypasses the normal capillary system, forcing high-pressure arterial blood directly into the venous system.
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The result is turbulent blood flow in the dual venous sinuses.
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This turbulence generates vibrations which can be transmitted through the surrounding tissue to the cochlea, causing pulsed tinnitus.
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If left untreated, dural arterioleus fistula can lead to complications like intracranial hemorrhage or venous congestion, making early diagnosis critical.
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Another common vascular cause of pulsed tinnitus is carotid artery stenosis, which occurs when and the carotid artery narrows due to plaque buildup or other factors.
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This narrowing creates turbulent blood flow as the high-pressure blood moves through the constricted segment.
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Carotid artery stenosis is a significant risk for ischemic stroke and, if identified early, can be managed safely with carotid enderectomy or stenting.
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Venous disorders are another important cause of pustile tinnitus.
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Common conditions include venous sinus stenosis, which narrows major venous pathways like the the transfer sinus or sigmoid sinus,
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leading to turbulent blood flow and elevated venous pressure.
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Other venous causes include jugular bulb abnormalities, such as high riding bulb or diverticulum, which may create vibrations that propagate to the inner ear.
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Recognizing venous causes early is crucial, as they may contribute to symptoms of intracanial hypertension or other complications requiring targeted treatment.
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Let's look at a quick case.
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A 78-year-old man with a remote history of pulsoil tinnitus presented with headaches.
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An MRI brain revealed a cerebellar hematoma.
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A diagnostic angiogram demonstrated a high-grade complex arteriovenous fistula with multiple arterial feeders.
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Multiple arterial embolization attempts could not completely resolve the fistula.
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Hence, a coil embolization of the non-functional left transfer sinus was performed.
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A complete cure was achieved after the venous sinus sacrifice the patient did well clinically the patient did well clinically.
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To sum up, pulse light tinnitus should always prompt a careful history, physical exam, and if needed, vascular imaging.
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Early identification of vascular causes is essential for preventing complications.

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この動画には、シャドーイング用の文が41文、単語が588語あります。 音声の長さは4:51です。 話す速さは1分あたり約121語で安定しており、シャドーイングしやすいペースです。 英語の頻出3,000語に含まれる単語は57%だけなので、語彙は難しめです。

この動画の重要語彙

動画に出てくる覚えておきたい単語15語を、発音と意味つきで紹介します。

単語発音意味
pulse 名詞/pʌls/脈, 脈搏
artery 名詞/ˈɑɹ.təɹ.i/動脈
narrow 形容詞/ˈnæɹəʊ/狭い
dual 形容詞/ˈdul/双数
vibration 名詞/vaɪˈbɹeɪʃən/振動
assessment 名詞/əˈsɛsmənt/評価
reveal 動詞/ɹɪˈviːl/現す, 表す
contribute 動詞/kənˈtɹɪb.jut/貢献する
examination 名詞/ɪɡˌzæm.ɪˈneɪ.ʃən/診察, 検査
bulb 名詞/ˈbʌlb/球根
occur 動詞/əˈkɜː/起こる, 起る
remote 形容詞/ɹəˈməʊt̞/遠い, 遠隔な
hence 副詞/ˈhɛns/ここから
comprehensive 形容詞/ˌkɑm.pɹəˈhɛn.sɪv/包括的な
indicate 動詞/ˈɪndɪˌkeɪt/示す, 指す

注意したい発音

  • 「th」の音: thorough /ˈθʌɹoʊ/, pathway /ˈpæθˌweɪ/, rhythmic /ˈɹɪð.mɪk/, thump /θʌmp/
  • 「sh」と「zh」の音: vibration /vaɪˈbɹeɪʃən/, crucial /ˈkɹuː.ʃəl/, examination /ɪɡˌzæm.ɪˈneɪ.ʃən/, tissue /ˈtɪʃ.(j)u/, evaluation /ɪˌvæljuˈeɪʃn̩/
  • 長い単語(アクセントの位置に注意): examination /ɪɡˌzæm.ɪˈneɪ.ʃən/, diagnostic /ˌdaɪ.əɡˈnɑ.stɪk/, comprehensive /ˌkɑm.pɹəˈhɛn.sɪv/, evaluation /ɪˌvæljuˈeɪʃn̩/, identification /aɪˌdɛn(t)ɪfɪˈkeɪʃn̩/

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  1. まず声を出さずに動画を最後まで聞き、知らない単語をメモします。
  2. 通常の速度で一文ずつシャドーイングし、話し手のリズムに合うまで繰り返します。
  3. 自分の声を録音して元の音声と比べます。pulse, artery, narrowなどの単語に特に注意しましょう。

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シャドーイング(Shadowing)は、もともとプロの通訳者養成プログラムで開発された言語学習法で、多言語習得者として知られるDr. Alexander Arguelles によって広く普及されました。方法はシンプルですが非常に効果的:ネイティブスピーカーの英語を聞きながら、1〜2秒の遅延で声に出してすぐに繰り返す——まるで「影(shadow)」のように話者を追いかけます。文法ドリルや受動的なリスニングと異なり、シャドーイングは脳と口の筋肉が同時にリアルタイムで英語を処理・再現することを強制します。研究により、発音精度、抑揚、リズム、連音、リスニング力、そして会話の流暢さが大幅に向上することが確認されています。IELTSスピーキング対策や自然な英語コミュニケーションを目指す方に特におすすめです。

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