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

2026년 4월 23일 업데이트: 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

연구 개요

상태

아직 모집하지 않음

정황

심각한 병

연구 유형

관찰

등록 (추정된)

참여기준

연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.

자격 기준

공부할 수 있는 나이

성인
고령자

건강한 자원 봉사자를 받아들입니다

아니

샘플링 방법

비확률 샘플

연구 인구

Critically ill patients

설명

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.

공부 계획

이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.

연구는 어떻게 설계됩니까?

디자인 세부사항

코호트 및 개입

그룹/코호트 그룹/코호트 생물 의학 또는 건강 결과에 대해 평가되는 관찰 연구의 참가자 그룹 또는 하위 그룹입니다.
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

연구는 무엇을 측정합니까?

주요 결과 측정

결과 측정	측정값 설명	기간
Consistency of diaphragmatic mobility measurements between the standard and modified positions on the left side. 기간: 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.

2차 결과 측정

결과 측정	측정값 설명	기간
Consistency of diaphragmatic excursion measurements between the standard position and the other four positions on the left side. 기간: 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. 기간: 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.

공동 작업자 및 조사자

여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.

스폰서

Shanghai Zhongshan Hospital

연구 기록 날짜

이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.

연구 주요 날짜

연구 시작 (추정된)

2026년 5월 5일

기본 완료 (추정된)

2026년 12월 31일

연구 완료 (추정된)

2026년 12월 31일

연구 등록 날짜

최초 제출

2026년 4월 12일

QC 기준을 충족하는 최초 제출

2026년 4월 23일

처음 게시됨 (실제)

2026년 4월 30일

연구 기록 업데이트

마지막 업데이트 게시됨 (실제)