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Eur Urol. 2013 Sep;64(3):472-7. doi: 10.1016/j.eururo.2012.06.030. Epub 2012 Jun 22.

Features associated with recurrence beyond 5 years after nephrectomy and nephron-sparing surgery for renal cell carcinoma: development and internal validation of a risk model (PRELANE score) to predict late recurrence based on a large multicenter database (CORONA/SATURN Project).

Author information

1
Ludwig-Maximilians-University Munich, Klinikum Grosshadern, Department of Urology, Munich, Germany. Electronic address: sabine.brookman-may@email.de

Abstract

BACKGROUND:

Approximately 10-20% of recurrences in patients treated with nephrectomy for renal cell carcinoma (RCC) develop beyond 5 yr after surgery (late recurrence).

OBJECTIVE:

To determine features associated with late recurrence.

DESIGN, SETTING, AND PARTICIPANTS:

A total of 5009 patients from a multicenter database comprising 13 107 RCC patients treated surgically had a minimum recurrence-free survival of 60 mo (median follow-up [FU]: 105 mo [range: 78-135]); at last FU, 4699 were disease free (median FU: 103 mo [range: 78-134]), and 310 patients (6.2%) experienced disease recurrence (median FU: 120 mo [range: 93-149]).

INTERVENTIONS:

Patients underwent radical nephrectomy or nephron-sparing surgery.

OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS:

Multivariable regression analyses identified features associated with late recurrence. Cox regression analyses evaluated the association of features with cancer-specific mortality (CSM).

RESULTS AND LIMITATIONS:

Lymphovascular invasion (LVI) (odds ratio [OR]: 3.07; p<0.001), Fuhrman grade 3-4 (OR: 1.60; p=0.001), and pT stage >pT1 (OR: 2.28; p<0.001) were significantly associated with late recurrence. Based on accordant regression coefficients, these parameters were weighted with point values (LVI: 2 points; Fuhrman grade 3-4: 1 point, pT stage >1: 2 points), and a risk score was developed for the prediction of late recurrences. The calculated values (0 points: late recurrence risk 3.1%; 1-3 points: 8.4%; 4-5 points: 22.1%) resulted in a good-, intermediate- and poor-prognosis group (area under the curve value for the model: 70%; 95% confidence interval, 67-73). Multivariable Cox regression analysis showed LVI (HR: 2.75; p<0.001), pT stage (HR: 1.24; p<0.001), Fuhrman grade (HR: 2.40; p<0.001), age (HR: 1.01; p<0.001), and gender (HR: 0.71; p=0.027) to influence CSM significantly. Limitations are based on the multicenter and retrospective study design.

CONCLUSIONS:

LVI, Fuhrman grade 3/4, and a tumor stage >pT1 are independent predictors of late recurrence after at least 5 yr from surgery in patients with RCC. We developed a risk score that allows for prognostic stratification and individualized aftercare of patients with regard to counseling, follow-up scheduling, and clinical trial design.

KEYWORDS:

Cancer-specific mortality; Late recurrence; Nephrectomy; Prognostic parameters; Renal cell carcinoma; Risk score

PMID:
22748912
DOI:
10.1016/j.eururo.2012.06.030
[Indexed for MEDLINE]

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