ObjectiveTo explore the application value of transthoracic echocardiography

vascular ultrasound andabdominal ultrasound in patients with acute respiratory distress syndrome（ARDS）in the veno-venous extracorporeal membraneoxygenation（V-V ECMO）stage.MethodsThirteen patients with ARDS who were proposed to be treated with V-V ECMOsupport in our hospital were selected.To summarize and analyze the results of patients’ basic condition by echocardiography

vascular ultrasound and abdominal ultrasound before intubation were summarize and analyze

as well as the monitoring of cardiacand vascular complications during intubation

during ECMO supportive treatment and after weaning.ResultsOf the 13 patientswith ARDS treated with V-V ECMO support

12 survived to offline and 8 survived to recovery and discharge.During ECMOassisted and supportive treatment

7 cases needed ultrasonic guidance to adjust the position of the cannula end.During ECMOsupportive treatment

ultrasonic guided cannula end position was required in 2 cases.Occurrence of complications: during ECMOsupportive treatment

2 cases of vascular ultrasound indicated thrombus formation around the cannula

and 1 case was abdominalhemorrhage.After weaning-off

echocardiography indicated that mural thrombus of inferior vena cava in 1 case and deep veinthrombosis of ipsilateral lower extremities in 1 case. No adverse events occurred during the V-V ECMO period.ConclusionUltrasound plays an important role in V-V ECMO intubation

during adjuvant and supportive treatment

and inthe early detection of complications.