Objective To explore the predictive value of cardiopulmonary combined ultrasound in the prognosis ofpatients with acute respiratory distress syndrome（ARDS）.MethodsA total of 124 patients with ARDS admitted to our hospitalwere selected.According to the survival within 28 d of treatment

the patients were divided into survival group（n=66）and deathgroup（n=58）.The clinical data

treatment status

and cardiopulmonary combined ultrasound examinations of the two groups werecompared.Multivariate Logistic regression analysis was used to analyze the relevant factors affecting the prognosis of the patients.The receiver operating characteristic（ROC）curve was used to evaluate the diagnostic efficacy of cardiopulmonary combinedultrasound indexes on patient prognosis.ResultsThere were significant differences between the two groups in age

ARDS type

ARDS grade

combined shock

acute physiology and chronic health scoring system Ⅱ（APACHE Ⅱ）score and sequential organfailure estimate（SOFA）score

the differences were statistically significant（all P<0.05）. The lung ultrasound score

the peakearly diastolic blood flow velocity and the peak early diastolic motion of the mitral valve（E/E’）of the surviving group were lowerthan those in the death group

while the tricuspid annulus systolic displacement（TAPSE）

the peak ratio of mitral valve flowvelocity and mitral valve velocity（E/A）were higher than those in the death group（all P<0.05）. Logistic regression analysisshowed that age

ARDS type（intrapulmonary type）

combined shock

APACHE Ⅱ score（15～25 points）

SOFA score（>6 points）lung ultrasound score

TAPSE

E/A and E/E’were all independent factors affecting the prognosis in patients with ARDS.ROCcurve showed that the area under the curve of lung ultrasound score

TAPSE

E/A

E/E’and their combination were 0.857

0.869

0.741

0.771 and 0.933

respectively

and the cutoff values were 14.50 points

21.750 mm

0.912

11.650 and-1.585

thesensitivities were 89.7%

89.4%

66.8%

89.2% and 86.2%

the specificities were 66.7%

79.3%

85.2%

82.4% and 90.9%

respectively.ConclusionCardiopulmonary combined ultrasound has a high predictive value for the prognosis of ARDSpatients

and it can be used in clinical applications.