Risk factors attributed to failure of ultrasound-guided compression for post-cardiac catheterization femoral artery pseudoaneurysms

Background: Femoral pseudoaneurysm is the most important access site complication following cardiac catheterization. Ultrasound-guided compression repair is a safe and effective therapeutic modality with variable failure rates and risk factors. The aim of this study was to investigate which factors were associated with a higher incidence of ultrasound-guided compression repair failure for post-cardiac catheterization femoral pseudoaneurysm. Methods: Data were retrospectively collected from medical records at King Abdullah University Hospital during the period from January 2011 to December 2016. A total of 42 patients with post-cardiac catheterization femoral pseudoaneurysm had attempted ultrasound-guided compression repair. Data regarding patients, procedure and aneurysm-related factors were evaluated by univariate analysis and multivariate logistic regression. Results: Ultrasound-guided compression repair failed in 31% of the patients. Patients with body mass index of > 28 kg/m(2), platelet count of <= 180,000/L, time lag (age of aneurysm) of >48 h following puncture time, aneurysmal neck diameter of > 4 mm and communicating tract length of <8 mm were associated with higher rate of ultrasound-guided compression repair failure in the univariate analysis. In the multivariate analysis, time lag (age of aneurysm) > 48 h (odds ratio = 5.7), body mass index > 28 kg/m(2) (odds ratio = 7.8), neck diameter > 4 mm (odds ratio = 14.4) and tract length < 8 mm (odds ratio = 18.6) were significantly associated with ultrasound-guided compression repair failure. Conclusion: Ultrasound-guided compression repair for patients with post-cardiac catheterization femoral pseudoaneurysm was successful in 69% of the patients. Risk factors for failed ultrasound-guided compression repair were as follows: delayed ultrasound-guided compression repair of >48 h, body mass index > 28 kg/m(2), wide neck diameter > 4 mm and short aneurysmal communication tract < 8 mm.