Objective:

To investigate the ultrasound imaging appearance and clinical characteristic of deep venous thrombosis (DVT) after cesarean section

to improve the diagnostic level of ultrasonography.

Methods:

Ultrasonographic images and clinical characteristic including disease features

lower extremity symptoms and the change of D-dimer of patients with DVT after cesarean section were retrospectively reviewed.

Results:

There were 63 cases of DVT diagnosed by ultrasonography

mainly involving the left lo

wer extremity was 74.6%

and muscular calf vein thrombosis was 93.6%; DVT occurred commonly in orderly pregnant women after cesarean section

and most of them were complicated with other risk factors

about 82.5% of the patients had more than two risk factors. The main ultrasound features commonly appeared as follows: there were thrombus of various sizes in the venous lumen

showing weak echoes or hypo-echoes

vascular lumen could not be completely closed by probe compressed

and color Doppler flow imaging (CDFI) showed there was no-flow signal. There were 45 cases D-dimer level increased

among which 35 cases (77.8%) had abnormal variation of serum D-dimer levels (a slow decrease or an increase trend). Among the 63 cases

51(81.0%) cases had main clinical symptoms and signs such as swelling

pain or positive Homans sign in the calf.

Conclusion:

Ultrasonography plays an important role in the diagnosis of DVT after cesarean section

and the combination of disease features

clinical symptoms and D-dimer level changes is helpful for improving ultrasonography efficiency and diagnostic confidence.