Diagnostic of Lower Respiratory Tract Infection by Lung Ultrasonography in General Practice
Diagnostic of Lower Respiratory Tract Infection by Lung Ultrasonography in General Practice
Lower Respiratory Tract Infection (LRTI) is a frequent motive of consultation in General
 Practice. Cost, irradiation and availability of traditional imagery make it difficult to
 perform in every patient with suspected LRTI.

 The objective is to evaluate the performance of LUS realized by family physicians into the
 usual LRTI diagnostic pathway.

 This study is a prospective, interventional, multi-centric and open study conducted in 3
 different centers by 15 General Practitioners (GP) in France. Patient complaining of dyspnea
 or cough were recruited from December 2019 to March 2020. GP received a training course by
 LUS expert before the study.

 The primary outcome measure was diagnosis modification after LUS. Secondary measures were
 therapeutic modification after LUS, decision of imagery prescription after LUS, decision of
 hospitalization or not after LUS, medical evolution and result of imagery initially
 prescribed by GP.
After an initial medical report, GP's concluded to an initial diagnosis and make initial
 prescription and finally decided or not to perform a standardized eight-points LUS. GP were
 free to perform or not LUS. If GP decided to perform LUS, GP were allowed to change their
 diagnosis and prescriptions (LUS group). However, therapeutic changes after LUS could not
 "downgrade" patient care.
Inclusion Criteria:

 -  Age > 3 months

 -  Dyspnea or cough complaint

 Exclusion Criteria:

 -  Age < 3 months

 -  Rejection to participate to the study