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Article Abstract
Background: The use of intravascular ultrasound (iUS) has been shown in multiple single-center retrospective studies to decrease procedure time, radiation exposure, and needle passes compared to conventional fluoroscopic guidance in the creation of a transjugular intrahepatic portosystemic shunt (TIPS). However, there are few data regarding the impact of imaging guidance modality choice on clinical outcomes.
Aim: To determine the impact of iUS fluoroscopic guidance during creation of a TIPS on procedural metrics, liver injury, shunt patency and mortality.
Methods: The retrospective study cohort consisted of 66 patients who underwent TIPS creation using iUS ["iUS-guided TIPS (iTIPS) group"] and 135 patients who underwent TIPS creation using fluoroscopic guidance ["conventional fluoroscopic-guided TIPS (cTIPS) group"] at 2 tertiary academic medical centers from 2015-2019. TIPS that required variceal embolization or portal vein recanalization were excluded.
Results: The technical success rate was 100% in the iTIPS group and 96% in the cTIPS group ( = 0.17). The iTIPS group had an air kerma (266 ± 254 mGy 1235 ± 1049 mGy, < 0.00001), dose area product (5728 ± 6518 uGy × m 28969 ± 19067 uGy × m, < 0.00001), fluoroscopy time (18.7 ± 9.6 minutes 32.3 ± 19.0 minutes, < 0.00001), and total procedure time (93 ± 40 minutes 110 ± 51 minutes, = 0.01) which were significantly lower than the cTIPS group. There was no significant difference in liver function test adverse event grade at 1 month. With a median follow-up of 26 months (inter quartile range: 6-61 months), there was no difference between the two groups in terms of thrombosis-free survival ( = 0.23), intervention-free survival ( = 0.29), or patient mortality ( = 0.61).
Conclusion: The use of iUS in the creation of TIPS reduces radiation exposure and procedure time compared with fluoroscopic guidance. At midterm follow-up, the imaging guidance modality did not affect shunt patency or mortality.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12149909 | PMC |
| http://dx.doi.org/10.4254/wjh.v17.i5.106892 | DOI Listing |
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