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Effect of Median Lobe Enlargement on Early Prostatic Artery Embolization Outcomes

Institution:	1. Department of Urology, Hospital Quiron Barcelona, Barcelona, Spain;2. Department of Urology, Clinique Pasteur, Toulouse, France;3. Department of Urology, ICUA-Clinica CEMTRO, Madrid, Spain;1. Department of Urology, Icahn School of Medicine at Mount Sinai, New York, NY;2. Department of Urology, Weill Cornell Medical College-New York Presbyterian, New York, NY;1. Yale University School of Medicine, New Haven, CT;2. University of Miami School of Medicine, Miami, FL;3. Hartford Healthcare, New London, CT

Abstract:	PurposeTo evaluate outcomes after prostatic artery embolization (PAE) in patients with severe intravesical prostatic protrusion (IPP).Materials and MethodsThis was a retrospective, single health system, 2-hospital study from April 2015 to December 2018 of 54 patients who underwent elective PAE procedures (age mean 67.5 years; standard deviation SD] 8.5). The cohort had a mean ellipsoid prostate volume of 100.1 cm³ (SD 56.7), a mean baseline International Prostate Symptom Score (IPSS) of 18.7 (SD 8.2), a mean baseline quality of life (QOL) score of 4.1 (SD 1.4), and a median follow-up of 38 days (range 10–656 days). Outcomes including IPSS and QOL score reduction (where a lower QOL score indicates an improvement in QOL), and clinical success were compared between severe (≥10 mm) and nonsevere (<10 mm) IPP patients. A linear regression model was used to examine the impact of IPP on these outcomes.ResultsNo significant differences in patient characteristics were found between nonsevere (n = 17) and severe (n = 37) IPP patients. Both cohorts showed IPSS reduction (nonsevere 6.0, P = .0397; severe 8.2, P < .0001) and QOL score reduction (nonsevere 1.0, P = .102; severe 2.0, P < .0001). No significant differences in IPSS or QOL score reduction were found between the cohorts (P = .431 and P = .127). Linear regression found that baseline IPP was not a significant contributor to the outcomes (IPSS: R² = .5, P < .0001; IPP: P = .702; QOL: R² = .5, P = .0003; IPP: P = .108).ConclusionsThere were no significant differences in early outcomes in PAE between patients with severe and nonsevere IPP.

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