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Croatian Medical Journal, Vol. 62 No. 5, 2021.

Original scientific paper

https://doi.org/10.3325/cmj.2021.62.464

The SPARE score reliably predicts the conversion from open partial to radical nephrectomy

Hakan Bahadir Haberal orcid id orcid.org/0000-0001-9774-2040 ; Department of Urology, Hacettepe University, Ankara, Turkey
Burak Citamak ; Department of Urology, Hacettepe University, Ankara, Turkey
Mesut Altan ; Department of Urology, Hacettepe University, Ankara, Turkey
Sertac Yazici ; Department of Urology, Hacettepe University, Ankara, Turkey
Bulent Akdogan ; Department of Urology, Hacettepe University, Ankara, Turkey
Haluk Ozen ; Department of Urology, Hacettepe University, Ankara, Turkey
Ali Ergen ; Department of Urology, Hacettepe University, Ankara, Turkey

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Abstract

Aim To assess the power of nephrometry scores to predict
the intraoperative conversion from partial nephrectomy
(PN) to radical nephrectomy (RN).
Methods We identified all the patients at our institution
who were scheduled for PN between April 2012 and December 2017. Patients who underwent robotic or laparoscopic surgery were excluded. A total of 149 patients (94
men) who underwent open surgery and had complete
data were included. The power of the R.E.N.A.L., PADUA,
SPARE, and DAP scores to predict the conversion to RN,
and the threshold values were assessed. In the multivariate analysis, the predictive power of the nephrometry
scores was tested by separately including them in different models.
Results The median age was 57 (48-67) years, while the
median follow-up was 15 (7-29.5) months. The overall conversion rate was 10.7%. The optimal cut-off values for the
R.E.N.A.L., PADUA, SPARE, and DAP scores were 7.5, 9.5, 5.5
and 7.5, respectively. The SPARE score had the highest area
under the curve (AUC=0.807, P<0.001). In the multivariate
analysis, the SPARE score had the highest odds ratio (OR
12.561; confidence interval 3.456-45.534, P<0.001].
Conclusion A high SPARE score was significantly associated with the conversion to RN in patients who underwent
open PN.

Keywords

Hrčak ID:

278469

URI

https://hrcak.srce.hr/278469

Publication date:

21.10.2021.

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