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Study on the Measurement Method of the Left Diaphragm (LD)

23. april 2026 opdateret af: Shanghai Zhongshan Hospital

To Study the Consistency of Multiple Measurement Methods of Left Diaphragm Mobility in Critically Ill Patients

This study intends to use ultrasound to measure the bilateral diaphragmatic ultrasound indicators in critically ill patients, focusing on the left diaphragm, and to explore the consistency and reliability among various ultrasound indicators to evaluate the diaphragmatic mobility

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Undersøgelsestype

Observationel

Tilmelding (Anslået)

35

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Critically ill patients

Beskrivelse

Inclusion Criteria:

  • ①Adult patients (≥18 years old) of both sexes;

    • In invasive group, intubation or tracheotomy was changed to 5L/min T-tube or tracheotomy mask oxygen inhalation;

      • Patients in non-invasive group were treated with mask oxygen 5L/min;

        • agree to participate in the trial and sign the informed consent;

Exclusion Criteria:

  • ①The diaphragm ultrasound operation site was too large to obtain images.

    • Diaphragmatic ultrasound images could not be obtained in any section;

      • The ultrasound image quality of any section was poor;

        • the presence of phrenic nerve injury/paralysis ⑤ pregnant women; ⑥ Neuromuscular diseases such as ALS and myasthenia gravis affect the evaluation of spontaneous breathing ⑦ Patients deemed by the investigator to be ineligible.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Kohorter og interventioner

Gruppe / kohorte
Invasive respiratory support group
The subjects of ultrasound measurement were patients with invasive mechanical ventilation
Noninvasive respiratory support group
The subjects of ultrasound measurement were patients with non-invasive respiratory support

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Consistency of diaphragmatic mobility measurements between the standard and modified positions on the left side.
Tidsramme: Measurements were performed 5 minutes after all patients were switched to conventional oxygen therapy at 5 L/min for the first time, once breathing had stabilized.
The main purpose is to verify the consistency of the two methods, Measurements were performed after switching patients in the invasive group (intubated patients to T-piece oxygen at 5 L/min and tracheostomized patients to face mask oxygen at 5 L/min following weaning), and patients in the non-invasive group (those receiving non-invasive ventilation or high-flow oxygen therapy) to conventional face mask oxygen at 5 L/min.
Measurements were performed 5 minutes after all patients were switched to conventional oxygen therapy at 5 L/min for the first time, once breathing had stabilized.

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Consistency of diaphragmatic excursion measurements between the standard position and the other four positions on the left side.
Tidsramme: Measurements were performed 5 minutes after all patients were switched to conventional oxygen therapy at 5 L/min for the first time, once breathing had stabilized.
Consistency of measurement methods，Measurements were performed after switching patients in the invasive group (intubated patients to T-piece oxygen at 5 L/min and tracheostomized patients to face mask oxygen at 5 L/min following weaning), and patients in the non-invasive group (those receiving non-invasive ventilation or high-flow oxygen therapy) to conventional face mask oxygen at 5 L/min.
Measurements were performed 5 minutes after all patients were switched to conventional oxygen therapy at 5 L/min for the first time, once breathing had stabilized.
Consistency of diaphragmatic excursion measurements between the standard position and the other five positions on the right side.
Tidsramme: Measurements were performed 5 minutes after all patients were switched to conventional oxygen therapy at 5 L/min for the first time, once breathing had stabilized.
Consistency of measurement methods，Measurements were performed after switching patients in the invasive group (intubated patients to T-piece oxygen at 5 L/min and tracheostomized patients to face mask oxygen at 5 L/min following weaning), and patients in the non-invasive group (those receiving non-invasive ventilation or high-flow oxygen therapy) to conventional face mask oxygen at 5 L/min.
Measurements were performed 5 minutes after all patients were switched to conventional oxygen therapy at 5 L/min for the first time, once breathing had stabilized.

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Shanghai Zhongshan Hospital

Datoer for undersøgelser

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Studer store datoer

Studiestart (Anslået)

5. maj 2026

Primær færdiggørelse (Anslået)

31. december 2026

Studieafslutning (Anslået)

31. december 2026

Datoer for studieregistrering

Først indsendt

12. april 2026

Først indsendt, der opfyldte QC-kriterier

23. april 2026

Først opslået (Faktiske)

30. april 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

30. april 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

23. april 2026

Sidst verificeret

1. april 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • B2026-162

Plan for individuelle deltagerdata (IPD)

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UBESLUTET

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