Investigation of estimated glomerular filtration rate and its perioperative change in patients with upper urinary tract urothelial carcinoma: A multi-institutional retrospective study

To investigate the association of perioperative estimated glomerular filtration rate (eGFR) with prognosis in patients with upper urinary tract urothoelial caicinoma (UTUC).

A total of 433 patients underwent radical nephroureterectomy with excision of the bladder cuff (RNU) at six hospitals affiliated with Kitasato University in Japan. Patients were divided into three groups each in terms of preoperative eGFR: normal eGFR (>60 mL/min/1.73 m2; n = 172), moderately reduced eGFR (45-60 mL/min/1.73 m2; n = 147) and severely reduced eGFR (<45 mL/min/1.73 m2; n = 114), and with regard to changes between pre- and postoperative eGFR: normal change (increased or <10% decreased; n = 132), moderate change (10%-30% decreased; n = 172) and severe change (>30% decreased; n = 129). Statistical analyses were performed to investigate the association between perioperative eGFR and prognosis.

Patients in the preoperative normal and moderately reduced eGFR group had significantly better progression-free survival (PFS) and cancer-specific survival (CSS) than those in the severely reduced eGFR group (both; P < 0.001). With regard to changes in postoperative eGFR, PFS and CSS were significantly better in patients in the severe and moderate change group than in those in the normal change group (both; P < 0.001). When adjusted for the effects of clinicopathological features, pathologic factors were associated with both PFS and CSS, but perioperative eGFR were not independent prognostic factors.

Patients with preoperative normal and moderately reduced eGFR and those with severe and moderate change in postoperative eGFR appeared to have a significantly better prognosis.

Asia-Pacific journal of clinical oncology. 2018 Feb 12 [Epub ahead of print]

Dai Koguchi, Kazumasa Matsumoto, Masaomi Ikeda, Yoshinori Taoka, Takahiro Hirayama, Yasukiyo Murakami, Takuji Utsunomiya, Daisuke Matsuda, Norihiko Okuno, Akira Irie, Masatsugu Iwamura

Department of Urology, Kitasato University School of Medicine, Kanagawa, Japan., Department of Urology, Kitasato University Kitasato Institute Hospital, Tokyo, Japan., Department of Urology, Kitasato University Medical Center, Saitama, Japan., Department of Urology, Kanagawa Prefectural Federation of Agricultural Cooperatives for Health and Welfare Sagamihara Kyodo Hospital, Kanagawa, Japan., Department of Urology, Higashiyamato Hospital, Tokyo, Japan., Department of Urology, National Hospital Organization Sagamihara Hospital, Kanagawa, Japan.

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