A phantom model study to identify the most effective manual aspiration thrombectomy for acute XXXX of the lower extremity.

@entity1150 @entity715 @entity291
AIM: To identify the most effective manual aspiration thrombectomy (MAT) method for the initial endovascular management of acute @entity1150 ( @entity1150 ) in the lower extremity using a phantom model. MATERIALS AND METHODS: An acute @entity1150 phantom model was created by infusing a @entity291 acute @entity715 in a 20-mm diameter, 120-cm long plastic tube with banding of the distal portion. A total of 32 types of aspiration methods using combinations of two aspiration catheters (8 and 10 Fr), four syringes (10, 20, 40, and 50  ml), and four different aspiration methods (I, II, III, and IV) were performed. Each method was performed 10 times. The total weight of the aspirated @entity715 was measured and compared among the 32 aspiration methods. The aspiration methods were classified based on the length of the dynamic catheter withdrawal (0  cm [method I], 15  cm [II], 30  cm [III], or >45  cm [IV]) while maintaining continuous negative pressure using a syringe. Analysis of variance and Student's t-test were used for statistical analysis. RESULTS: There were no statistically significant differences in the total amount of aspirated @entity715 among the various types of aspiration catheters and syringes; however, different aspiration methods showed significantly different results. Acute @entity715 was most effectively aspirated by method IV irrespective of the catheter and syringe used. The longer the length of dynamic catheter withdrawal, the greater the amount of total thrombi that could be aspirated, irrespective of the type of aspiration catheter and syringe used (IV  >  III  >  II  >  I; p<0.05). CONCLUSION: MAT can be performed most effectively using method IV. Effective MAT relies on the length of the dynamic catheter withdrawal while maintaining continuous negative pressure using a syringe in the initial endovascular management of acute @entity1150 in the lower extremity.
