LUS: Bedside Lung Ultrasonography by Nurses in Acute Dyspnea.
Study Details
Study Description
Brief Summary
This study assesses the potential of lung ultrasonography to diagnose heart failure.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
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Detailed Description
Dyspnea is one of the most distressing situations for the patient . Emergency cases do not always present in conditions that are ideal for immediate diagnosis, which sometimes compromises outcome. Physical examination, laboratory findings and radiography are imperfect, resulting in a need for sophisticated test results that delay management.
Lung ultrasonography is becoming a standard tool in critical cases in the ED.
the investigators aim to perform ultrasonography on consecutive patients admitted to the ICU with dyspnea, comparing lung ultrasonography results on initial presentation with the final diagnosis by the nurses.
Three items were assessed: artifacts (horizontal A lines or vertical B lines indicating interstitial syndrome), lung sliding, and alveolar consolidation and/or pleural effusion, these items were grouped to assess ultrasound profiles.
the study aimed to evaluate the accuracy and reproducibility of B-lines testing assessed by emergency nurses after 12-h training in the diagnosis of HF in patients admitted to the emergency department with acute dyspnea.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| nurses ED nurses trained to perform LUS and blinded to the final diagnosis |
Diagnostic Test: we perform a lung ultrasound to all the patients admitted for dyspnea independantly from the final diagnosis
Patients were placed in a semi-recumbent or supine position depending on their respiratory tolerance. For each side of the chest, 4 zones have to be assessed : 2 anterior and 2 lateral. The operator should calculate the number of B-lines when present .
Other Names:
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| emergency physician certified emergency physician who had accomplished a full mentoring program for "Ultra-Sound Life Support". |
Diagnostic Test: we perform a lung ultrasound to all the patients admitted for dyspnea independantly from the final diagnosis
Patients were placed in a semi-recumbent or supine position depending on their respiratory tolerance. For each side of the chest, 4 zones have to be assessed : 2 anterior and 2 lateral. The operator should calculate the number of B-lines when present .
Other Names:
|
Outcome Measures
Primary Outcome Measures
- the accuracy of LUS performed by nurses in the diagnosis of heart failure [0 days]
the accuracy of LUS in the diagnosis of heart failure measured by sensitivity .
- the Specificity of LUS by nurses in the diagnosis of heart failure [0 days]
the accuracy of LUS in the diagnosis of heart failure measured by specificity.
- the reproducibility of LUS in by nurses the diagnosis of heart failure [0 days]
the accuracy of LUS in the diagnosis of heart failure measured by area under the roc curve
- Agreement between nurses and expert's [0 days]
Agreement between nurses and expert's interpretation was assessed by kappa agreement index for ordinal LUS scale classification
Eligibility Criteria
Criteria
Inclusion Criteria:
- non traumatic dyspnea with the final diagnosis of heart failure
Exclusion Criteria:
-
age less than 18 years
-
impossibility to give consent to participate in the study
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post-traumatic dyspnea
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pregnant women
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need for endotracheal intubation or inotropic drugs
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patients who were deemed too unstable for sonography by the treating team
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Nouira Semir | Monastir | Tunisia | 5000 |
Sponsors and Collaborators
- University of Monastir
Investigators
None specified.Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- LR12SP18