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- W2149583003 abstract "The purpose of the present paper is to describe our experience with the placement of renal artery stents and the factors that affect intraprocedural fluoroscopy time and exposure to the patient. After IRB approval, the HI-IQ database was queried for renal artery stent placement from January 2007 to June 2010. Cases that included additional non-renal artery stent placement and cases without a recorded fluoroscopy time were excluded. The data in the report included fluoroscopy time (f), radiation dose (mGy) and the operator. The cases were performed by one of 13 staff. Patient charts were then evaluated for demographic information including age, gender, BMI, procedural details, whether there was preprocedure advanced renal artery imaging available (angiogram, CTA or MRA) and the etiology of the stenosis. Initial analysis was performed to assess f with placement of single stent verses multiple stents. Subsequent evaluation of other factors that may influence f were performed among patients that had undergone unilateral stent placement. Variables from the data were analyzed using a T-test after log transformation and testing for variance with an F-test. There were 80 males and 70 females with a mean age of 70.6 ± 10.5 years and a BMI of 28.8 ± 6.4 kg/m2. Mean fluoroscopy time was 15.5 ± 10.6 minutes for all cases. 105 stenoses were due to atherosclerotic disease, 16 due to fibrous muscular dysplasia, 15 due to instent stenosis of an existing stent, 5 due to anastamotic stenosis and 2 due to other etiologies. Factors that predicted for increased fluoroscopic time were one stent versus more than one stent and the use of an embolic protection device (EPD) (see Table).Tabled 1Number of stentsEPDAortogramOperator experiencePreprocedure advanced imagingOne stentTwo or moreYesNoYesNo> 10 years< 10 yearsYesUltrasound onlyMean fluoroscopy time⁎numbers are after log transformation. (minutes ± standard deviation)1.05 ± 0.071.24 ± 0.051.18 ± 0.131.03 ± 0.061.02 ± 0.071.09 ± 0.071.04 ± 0.091.06 ± 0.07P-value<0.00010.060.220.270.71 numbers are after log transformation. Open table in a new tab Patients requiring more than one renal stent or the use of an emboilic protection device have increased fluoroscopic time procedures." @default.
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- W2149583003 date "2011-03-01" @default.
- W2149583003 modified "2023-09-26" @default.
- W2149583003 title "Abstract No. 139: Factors that affect fluoroscopy time during the placement of renal artery stents" @default.
- W2149583003 doi "https://doi.org/10.1016/j.jvir.2011.01.153" @default.
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