1Hassan Ali Aljaziri

1Ministry of National Guard


The study evaluates the IVC Filter Retrieval Alert System (IFRAS) effectiveness in increasing the IVC filter retrieval rate.

Material(s) and Method(s):

The medical records of patients with advanced-stage (BCLC-C) HThe study represents an extension of a prior study done at the same institution in 2018 with a smaller sample size of 307 patients and a shorter duration of four years: two years before (2013 – 2015) and two years after (2015 – 2017) applying IFRAS. All patients who had IVC filters between January 2013 and December 2019 were reviewed retrospectively for the current study. Patients’ data are obtained from electronic medical records with a total sample of 756 patients. The sample consists of two categories. First, the filter retrieval rate, before launching IFRAS (between 2013 and 2015, for 312 patients). Second, the filter retrieval rate after launching IFRAS (between 2016 and 2019, for 435 patients). This study aims to evaluate the effectiveness of the alert system by comparing the retrieval rate before and after applying IFRAS. A dedicated administrative assistant documented patient data, insertion dates, and filter types. The assistant tracks patients actively and follows patients up with the referring physician or interventional radiologist through the Interventional Radiology (IR) clinic.


Mean age of patieThe study included 46-patients with a mean age of 65.3-years (SD=9.5 years). Child-Pugh (CP) A and B patients constituted 71.7% and 28.3% of the patients respectively. The mean size of The IVC filter retrieval rate before IFRAS establishment (2013-2015) was 38.3% (123/312) and climbed to 54.25% (236/435) with a P-value < 0.001. Before launching the IFRAS, the rate of patients with no follow-up was 45.17% (145/312), and it dropped to 41.15% (179/435).


The study demonstrates a statistically significant difference in increasing IVC filter retrieval rate after launching the IFRAS.