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Comparison of Arterial and Capillary Blood Gas Analyses in Patients With Respiratory Distress Due to COPD or APE (GAZOCAP)

2026年10月1日 更新者:Centre Hospitalier Universitaire de Nice

The assessment of gas exchange is crucial for the management of patients suffering from respiratory distress due to an exacerbation of chronic obstructive pulmonary disease (COPD) or cardiogenic acute pulmonary edema (APE). These measurements are used by physicians to determine the need for noninvasive ventilation (NIV) as well as to evaluate its effectiveness and to decide whether to continue the treatment.

Arterial blood gas analysis is currently the gold standard for the measurement of these gas exchanges, though invasive, painful and risky (failure risks and possible local complications). Capillary blood gas analysis, which consists in collecting a blood drop from the ear or the finger by capillarity after punction, could represent a less invasive alternative. However, data comparing the performances of arterial and capillary blood gas analysis in the context of respiratory distress requiring a NIV remain limited.

This study is based on the hypothesis that capillary blood gas analysis can perform as well as arterial blood gas analysis. It is aimed at comparing values obtained from arterial and capillary blood gas analyses from patients with respiratory distress and requiring a NIV due to an exacerbation of COPD or cardiogenic APE.

調査の概要

状態

募集

条件

介入・治療

研究の種類

介入

入学 (推定)

65

段階

  • 適用できない

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究連絡先

  • 名前:Nathalie Ducot, MD-PhD
  • 電話番号:+33 (0)4 92 03 32 42
  • メール:ducot.n@chu-nice.fr

研究連絡先のバックアップ

研究場所

      • Nice、フランス、06000
        • 募集
        • CHU de Nice
        • コンタクト:

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

18年歳以上 (大人、高齢者)

健康ボランティアの受け入れ

いいえ

受講資格のある性別

全て

説明

Inclusion Criteria:

  • Patients older than 18 years old
  • Patients admitted in the emergency care unit with an exacerbation of COPD or a cardiogenic APE requiring a non-invasive ventilation (i.e. for COPD patients pH< 7.35, for APE patients: PCO2 > 45 mmHg)
  • Patients affiliated to a social security system

Exclusion Criteria:

  • Patients for which a non-invasive ventilation was initiated upon pre-hospital care
  • Contraindication for non-invasive ventilation
  • Patients for which non-invasive ventilation is not indicated
  • Patients for which capillary or arterial blood gas analyses are impossible
  • Adults subject to legal guardianship (guardianship, conservatorship)
  • Pregnant women
  • Patients with a congenital heart disease

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

  • 主な目的:診断
  • 割り当て:なし
  • 介入モデル:単一グループの割り当て
  • マスキング:なし(オープンラベル)

武器と介入

参加者グループ / アーム
介入・治療
実験的:Respiratory distress arm requiring a noninvasive ventilation

The intervention consists in carrying out arterial, veinous and capillary blood gas analyses before submitting the patient to noninvasive ventilation (5 minutes will separate each sampling). Data from these samplings will be recorded. 1 hour after the implementation of the noninvasive ventilation, patients will once again undergo arterial, veinous and capillary samplings for blood gas analyses. Respiratory parameters will be recorded as well at the onset of the noninvasive ventilation and one hour after its start.

この研究は何を測定していますか?

主要な結果の測定

結果測定
メジャーの説明
時間枠
Agreement between carbon dioxide pressure (PCO2) values obtained from capillary and arterial blood gas analyses in patients requiring a non-invasive ventilation due to an exacerbation of COPD or a cardiogenic APE.
時間枠:Baseline (once the patient arrives at the emergency care unit and is included in the study)

Agreement between arterial and capillary pCO₂ measurements, assessed using Bland-Altman analysis with mean bias and the 95% limits of agreement

Baseline (once the patient arrives at the emergency care unit and is included in the study)

二次結果の測定

結果測定
メジャーの説明
時間枠
Agreement between pH values obtained from capillary and arterial blood gas analyses in patients requiring a non-invasive ventilation due to an exacerbation of COPD or a cardiogenic APE
時間枠:Baseline (once the patient arrives at the emergency care unit and is included in the study)

Agreement between pH values obtained from capillary and arterial blood gas analyses, assessed using Bland-Altman analysis with mean bias and the 95% limits of agreement.

Baseline (once the patient arrives at the emergency care unit and is included in the study)
Agreement between bicarbonate concentration values obtained from capillary and arterial blood gas analyses in patients requiring a non-invasive ventilation due to an exacerbation of COPD or a cardiogenic APE.
時間枠:Baseline (once the patient arrives at the emergency care unit and is included in the study)

Agreement between bicarbonate concentration values obtained from capillary and arterial blood gas analyses, assessed using Bland-Altman analysis with mean bias and the 95% limits of agreement.

Baseline (once the patient arrives at the emergency care unit and is included in the study)
Agreement between base concentration values obtained from capillary and arterial blood gas analyses in patients requiring a non-invasive ventilation due to an exacerbation of COPD or a cardiogenic APE.
時間枠:Baseline (once the patient arrives at the emergency care unit and is included in the study)

Agreement between base concentration values obtained from capillary and arterial blood gas analyses, assessed using Bland-Altman analysis with mean bias and the 95% limits of agreement

Baseline (once the patient arrives at the emergency care unit and is included in the study)
Agreement between PCO2 values obtained from capillary and arterial blood gas analyses in patients with an exacerbation of COPD or a cardiogenic APE one hour after initiation of non-invasive ventilation.
時間枠:One hour after initiation of non-invasive ventilation.

Agreement between PCO2 values obtained from capillary and arterial blood gas analyses, assessed using Bland-Altman analysis with mean bias and the 95% limits of agreement

One hour after initiation of non-invasive ventilation.
Agreement between pH values obtained from capillary and arterial blood gas analyses in patients with an exacerbation of COPD or a cardiogenic APE one hour after initiation of non-invasive ventilation.
時間枠:One hour after initiation of non-invasive ventilation.

Agreement between pH values obtained from capillary and arterial blood gas analyses, assessed using Bland-Altman analysis with mean bias and the 95% limits of agreement.

One hour after initiation of non-invasive ventilation.
Agreement between bicarbonate concentration values obtained from capillary and arterial blood gas analyses in patients with an exacerbation of COPD or a cardiogenic APE one hour after initiation of non-invasive ventilation.
時間枠:One hour after initiation of non-invasive ventilation.

Agreement between bicarbonate concentration values obtained from capillary and arterial blood gas analyses, assessed using Bland-Altman analysis with mean bias and the 95% limits of agreement

One hour after initiation of non-invasive ventilation.
Agreement between base concentration values obtained from capillary and arterial blood gas analyses in patients with an exacerbation of COPD or a cardiogenic APE one hour after initiation of non-invasive ventilation.
時間枠:One hour after initiation of non-invasive ventilation.

Agreement between base concentration values obtained from capillary and arterial blood gas analyses, assessed using Bland-Altman analysis with mean bias and the 95% limits of agreement.

One hour after initiation of non-invasive ventilation.
Agreement between PCO2 values obtained from veinous and arterial blood gas analyses in patients requiring a non-invasive ventilation due to an exacerbation of COPD or a cardiogenic APE.
時間枠:Baseline (once the patient arrives at the emergency care unit and is included in the study).

Agreement between PCO2 values obtained from veinous and arterial blood gas analyses, assessed using Bland-Altman analysis with mean bias and the 95% limits of agreement

Baseline (once the patient arrives at the emergency care unit and is included in the study).
Agreement between pH values obtained from veinous and arterial blood gas analyses in patients requiring a non-invasive ventilation due to an exacerbation of COPD or a cardiogenic APE.
時間枠:Baseline (once the patient arrives at the emergency care unit and is included in the study).

Agreement between pH values obtained from veinous and arterial blood gas analyses, assessed using Bland-Altman analysis with mean bias and the 95% limits of agreement.

Baseline (once the patient arrives at the emergency care unit and is included in the study).
Agreement between bicarbonate concentration values obtained from veinous and arterial blood gas analyses in patients requiring a non-invasive ventilation due to an exacerbation of COPD or a cardiogenic APE.
時間枠:Baseline (once the patient arrives at the emergency care unit and is included in the study).

Agreement between bicarbonate concentration values obtained from veinous and arterial blood gas analyses, assessed using Bland-Altman analysis with mean bias and the 95% limits of agreement

Baseline (once the patient arrives at the emergency care unit and is included in the study).
Agreement between base concentration values obtained from veinous and arterial blood gas analyses in patients requiring a non-invasive ventilation due to an exacerbation of COPD or a cardiogenic APE.
時間枠:Baseline (once the patient arrives at the emergency care unit and is included in the study).

Agreement between base concentration values obtained from veinous and arterial blood gas analyses, assessed using Bland-Altman analysis with mean bias and the 95% limits of agreement

Baseline (once the patient arrives at the emergency care unit and is included in the study).
Agreement between PCO2 values obtained from veinous and arterial blood gas analyses in patients with an exacerbation of COPD or a cardiogenic APE one hour after initiation of non-invasive ventilation.
時間枠:One hour after initiation of non-invasive ventilation.

Agreement between PCO2 values obtained from veinous and arterial blood gas analyses, assessed using Bland-Altman analysis with mean bias and the 95% limits of agreement

One hour after initiation of non-invasive ventilation.
Agreement between pH values obtained from veinous and arterial blood gas analyses in patients with an exacerbation of COPD or a cardiogenic APE one hour after initiation of non-invasive ventilation.
時間枠:One hour after initiation of non-invasive ventilation.

Agreement between pH values obtained from veinous and arterial blood gas analyses, assessed using Bland-Altman analysis with mean bias and the 95% limits of agreement

One hour after initiation of non-invasive ventilation.
Agreement between bicarbonate concentration values obtained from veinous and arterial blood gas analyses in patients with an exacerbation of COPD or a cardiogenic APE one hour after initiation of non-invasive ventilation.
時間枠:One hour after initiation of non-invasive ventilation.

Agreement between Bicarbonate concentration values obtained from veinous and arterial blood gas analyses, assessed using Bland-Altman analysis with mean bias and the 95% limits of agreement

One hour after initiation of non-invasive ventilation.
Agreement between base concentration values obtained from veinous and arterial blood gas analyses in patients with an exacerbation of COPD or a cardiogenic APE one hour after initiation of non-invasive ventilation.
時間枠:One hour after initiation of non-invasive ventilation.

Agreement between base concentration values obtained from veinous and arterial blood gas analyses, assessed using Bland-Altman analysis with mean bias and the 95% limits of agreement

One hour after initiation of non-invasive ventilation.

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研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (実際)

2026年9月28日

一次修了 (推定)

2027年3月24日

研究の完了 (推定)

2027年3月24日

試験登録日

最初に提出

2026年9月17日

QC基準を満たした最初の提出物

2026年9月17日

最初の投稿 (実際)

2026年9月23日

学習記録の更新

投稿された最後の更新 (実際)

2026年10月2日

QC基準を満たした最後の更新が送信されました

2026年10月1日

最終確認日

2026年10月1日

詳しくは

本研究に関する用語

その他の研究ID番号

  • 25-PP-13

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