3:57 PM; Abstract No. 130; FEATURED ABSTRACT - Cone beam CT venography vs. cortisol measurements to confirm selective right adrenal vein catheterization during adrenal vein sampling: does anatomical selectivity correlate with biochemical selectivity ratios?

Abstract

body. Regression analysis was performed to determine if there were statistically significant relationships between catheter tip migration distances and innominate vein angles, internal jugular vein access locations, subcutaneous pocket locations, number of catheter lumens and various patient demographics. Results: The range of catheter tip migration distances for the entire population was -4.01 to 9.97 cm with a mean of 1.49 cm 1.97. There was a statistically significant positive relationship between catheter tip migration distance and age (P1⁄40.0319), body mass index (BMI) (P1⁄40.0244), innominate vein angle (P1⁄40.0028) and dual compared to single lumen ports (P1⁄40.0199). Whereas port pocket location, venous access site, gender and number of days between initial placement and follow-up radiograph did not demonstrate statistical significance. Conclusion: Increased age, increased BMI, increased innominate vein angle and dual vs single lumen ports predict increased positional catheter tip migration for left internal jugular subcutaneous central venous ports. This information can be useful during initial port placement and also when deciding whether or not to revise a port with a catheter that has been inadvertently cut short.