Pilot Study to Determine the Optimal Technique for Measurement of Ankle Blood Pressures
Pilot Study to Determine the Optimal Oscillometric-Based Technique for Measurement of Ankle Blood Pressures for the Ankle-brachial Index
Peripheral arterial disease (PAD) is a highly prevalent medical condition. Patients with PAD are usually diagnosed on the basis of the ankle-brachial index. The ankle-brachial index is the ratio of ankle pressure to arm pressure based on measurement of blood pressures in the arms and legs using a Doppler device. The need for dedicated equipment and trained personnel, along with the time required to perform the test, have been identified as barriers to widespread implementation of ankle-brachial index screening. The use of automated oscillometric devices for blood pressure measurement and determination of the ankle-brachial index has been applied with variable success. It will be beneficial to investigate a reliable oscillometric-based procedure that can accurately measure leg pressures for the ankle-brachial index across the entire spectrum of PAD severity.
The purpose of this study is to determine the optimal oscillometric-based technique for estimation of Doppler-derived systolic arm and ankle blood pressures for calculation of the ankle-brachial index in patients with and without PAD.
Subjects with suspected arterial disease in the non-invasive lab will be enrolled. Arm, ankle, and toe pressure measurements will be made in the supine position using Doppler, oscillometric methods, and photoplethysmographic sensor. Arm and ankle pressures from a subset of subjects will be obtained in both seated and supine positions. The ankle-brachial index and toe-brachial index will be calculated.
調査の概要
研究の種類
入学 (予想される)
連絡先と場所
研究場所
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Ohio
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Cleveland、Ohio、アメリカ、44195
- Cleveland Clinic
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
サンプリング方法
調査対象母集団
説明
Inclusion Criteria:
- Patient at least 50 years of age
- Ambulatory outpatient
- Referred to non-invasive Vascular Laboratory for evaluation of suspected arterial disease.
Exclusion Criteria:
- Unable to give informed consent
- Unable to lie supine for at least 15 minutes
研究計画
研究はどのように設計されていますか?
デザインの詳細
コホートと介入
グループ/コホート |
介入・治療 |
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SUSPECTED ARTERIAL DISEASE
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Blood pressures using Doppler and oscillometric methods will be obtained at each limb and on one toe from each foot.
Blood pressure measurements will be taken at each limb (arm and ankle) with Doppler and oscillometric based methods.
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協力者と研究者
捜査官
- 主任研究者:Heather L Gornik, MD、The Cleveland Clinic
研究記録日
主要日程の研究
研究開始
一次修了 (実際)
研究の完了 (実際)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。
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