International Urology and Nephrology

, Volume 51, Issue 1, pp 33–40 | Cite as

Influence of symptomatic pseudoaneurysms on postoperative renal function after partial nephrectomy: results of a matched pair analysis

  • M. T. WalachEmail author
  • N. Rathmann
  • S. Porubsky
  • D. Pfalzgraf
  • S. J. Diehl
  • M. Ritter
  • M. S. Michel
  • N. Wagener
  • P. Honeck
  • M. C. Kriegmair
Urology - Original Paper



A symptomatic pseudoaneurysm (SPA) is a rare but severe complication after partial nephrectomy (PN). Selective trans-arterial embolization (TAE) is the treatment of choice with high success rates. However, the influence of this intervention on postsurgical renal function has not been studied.


Between 2005 and 2016 we performed 1047 PNs at our institution. Postsurgical SPA occurred in 40 patients (3.8%). Patients with and without SPA were matched in a 1:2 ratio concerning tumor complexity (RENAL) and pre-operative renal function (CKD stage). Any CKD upstage and a relevant CKD progression (CKD ≥ III) were defined as endpoints. Furthermore, the influence of the amount of contrast agent applied during TAE was assessed.


All patients with SPA were treated successfully with TAE. No significant difference could be detected concerning clinical, functional and surgical aspects. Median follow-up time accounted for 12.5 (6.75–27.5) months. Kaplan–Meier analyses detected an increased rate of any CKD upstage (p = 0.066) and relevant CKD progression (p = 0.01) in patients with SPA. Multivariate analysis identified post-operative SPA to be an independent predictor for a relevant CKD progression (HR 4.15, p = 0.01). The amount of contrast agents used did not have an impact on the development of a relevant CKD progression (p = 0.72).


Patients treated with TAE after PN show an additional risk for an impairment of renal function over time. Hence, those patients should explicitly be informed about possible consequences and closely monitored by nephrologists.


Renal mass Partial nephrectomy Spontaneous pseudoaneurysm Embolization Kidney function 


Author contributions

MTW: Protocol/project development, Manuscript writing/editing, Data analysis, NR: Data collection/ critical revision and scientific input, SP: critical revision and scientific input, DP: critical revision and scientific input, SJD: critical revision and scientific input, MR: critical revision and scientific input, MSM: critical revision and scientific input, NW: critical revision and scientific input, PH: critical revision and scientific input, MCK: Protocol/project development, Manuscript writing/editing, Data analysis.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no competing interests.


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Copyright information

© Springer Nature B.V. 2018

Authors and Affiliations

  • M. T. Walach
    • 1
    Email author
  • N. Rathmann
    • 2
  • S. Porubsky
    • 3
  • D. Pfalzgraf
    • 1
  • S. J. Diehl
    • 2
  • M. Ritter
    • 1
  • M. S. Michel
    • 1
  • N. Wagener
    • 1
  • P. Honeck
    • 1
  • M. C. Kriegmair
    • 1
  1. 1.Department of UrologyUniversity Medical Centre MannheimMannheimGermany
  2. 2.Department of Radiology and Nuclear MedicineUniversity Medical Centre MannheimMannheimGermany
  3. 3.Department of PathologyUniversity Medical Centre MannheimMannheimGermany

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