Changes in renal function following nephroureterectomy may affect the use of perioperative chemotherapy Journal Article
| Authors: | Kaag, M. G.; O'Malley, R. L.; O'Malley, P.; Godoy, G.; Chen, M.; Smaldone, M. C.; Hrebinko, R. L.; Raman, J. D.; Bochner, B.; Dalbagni, G.; Stifelman, M. D.; Taneja, S. S.; Huang, W. C. |
| Article Title: | Changes in renal function following nephroureterectomy may affect the use of perioperative chemotherapy |
| Abstract: | Background: Nephroureterectomy alone fails to adequately treat many patients with advanced upper tract urothelial carcinoma (UTUC). Perioperative platinum-based chemotherapy has been proposed but requires adequate renal function. Objective: Our aim was to determine whether the ability to deliver platinum-based chemotherapy following nephroureterectomy is affected by postoperative changes in renal function. Design, settings, and participants: We retrospectively reviewed data on 388 patients undergoing nephroureterectomy for UTUC between 1991 and 2009. Four institutions were included. Intervention: All patients underwent nephroureterectomy. Measurements: All patients had serum creatinine measured before and after surgery. The value closest to 3 mo after surgery was taken as the postoperative value (range: 2-52 wk). Estimated glomerular filtration rate (eGFR) was calculated using the abbreviated Modification of Diet in Renal Disease study equation. eGFR values before and after surgery were compared using the paired t test. We chose an eGFR of 45 and 60 ml/min per 1.73 m2 as possible cut-offs for chemotherapy eligibility and compared eligibility before and after surgery using the chi-square test. Results and limitations: Our cohort of 388 patients included 233 men (60%) with a median age of 70 yr. Mean eGFR decreased by 24% after surgery. Using a cut-off of 60 ml/min per 1.73 m2, 49% of patients were eligible for chemotherapy before surgery, but only 19% of patients remained eligible postoperatively. Using a cut-off of 45 ml/min per 1.73 m2, 80% of patients were eligible preoperatively, but only 55% remained eligible after surgery. This distribution persisted when we limited the analysis to patients with advanced pathologic stage (T3 or higher). Patients older than the median age of 70 yr were more likely to be ineligible for chemotherapy both pre- and postoperatively by either definition, and they were significantly more likely to have an eGFR <45 ml/min per 1.73 m2 postoperatively, regardless of their starting eGFR. This study is limited by its retrospective nature, and there was some variability in the timing of postoperative serum creatinine measurements. Conclusions: eGFR is significantly diminished after nephroureterectomy, particularly in elderly patients. These changes in renal function likely affect eligibility for adjuvant cisplatin-based therapy. Accordingly, we suggest strong consideration of neoadjuvant regimens. © 2010 European Association of Urology. |
| Keywords: | cancer chemotherapy; aged; middle aged; retrospective studies; major clinical study; cisplatin; antineoplastic agents; comparative study; combined modality therapy; chemotherapy; outcome assessment; cohort analysis; creatinine; creatinine blood level; medical record review; kidney neoplasms; nephrectomy; diet; kidney; kidney function; chronic kidney disease; urothelial carcinoma; nephroureterectomy; glomerular filtration rate; glomerulus filtration rate; upper tract urothelial carcinoma; urogenital tract tumor; ureteral neoplasms; ureter; carcinoma, transitional cell; transitional cell carcinoma; drug use; chi square distribution; perioperative care |
| Journal Title: | European Urology |
| Volume: | 58 |
| Issue: | 4 |
| ISSN: | 0302-2838 |
| Publisher: | Elsevier Science, Inc. |
| Date Published: | 2010-10-01 |
| Start Page: | 581 |
| End Page: | 587 |
| Language: | English |
| DOI: | 10.1016/j.eururo.2010.06.029 |
| PUBMED: | 20619530 |
| PROVIDER: | scopus |
| PMCID: | PMC3677959 |
| DOI/URL: | |
| Notes: | --- - "Export Date: 20 April 2011" - "CODEN: EUURA" - "Source: Scopus" |
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