Role of systemic immune-inflammation index in patients treated with salvage radical prostatectomy

Pawel Rajwa, Victor M. Schuettfort, Fahad Quhal, Keiichiro Mori, Satoshi Katayama, Ekaterina Laukhtina, Benjamin Pradere, Reza Sari Motlagh, Hadi Mostafaei, Nico C. Grossmann, Andreas Aulitzky, Andrzej Paradysz, Pierre I. Karakiewicz, Harun Fajkovic, Kristin Zimmermann, Axel Heidenreich, Paolo Gontero, Shahrokh F. Shariat

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Purpose: To examine the predictive and prognostic value of preoperative Systemic Immune-inflammation Index (SII) in patients with radio-recurrent prostate cancer (PCa) treated with salvage radical prostatectomy (SRP). Materials and methods: This multicenter retrospective study included 214 patients with radio-recurrent PCa, treated with SRP between 2007 and 2015. SII was measured preoperatively (neutrophils × platelets/lymphocytes) and the cohort was stratified using optimal cut-off. Uni- and multivariable logistic and Cox regression analyses were performed to evaluate the predictive and prognostic value of SII as a preoperative biomarker. Results: A total of 81 patients had high preoperative SII (≥ 730). On multivariable logistic regression modeling, high SII was predictive for lymph node metastases (OR 3.32, 95% CI 1.45–7.90, p = 0.005), and non-organ confined disease (OR 2.55, 95% CI 1.33–4.97, p = 0.005). In preoperative regression analysis, high preoperative SII was an independent prognostic factor for cancer-specific survival (CSS; HR 10.7, 95% CI 1.12–103, p = 0.039) and overall survival (OS; HR 8.57, 95% CI 2.70–27.2, p < 0.001). Similarly, in postoperative multivariable models, SII was associated with worse CSS (HR 22.11, 95% CI 1.23–398.12, p = 0.036) and OS (HR 5.98, 95% CI 1.67–21.44, p = 0.006). Notably, the addition of SII to preoperative reference models improved the C-index for the prognosis of CSS (89.5 vs. 80.5) and OS (85.1 vs 77.1). Conclusions: In radio-recurrent PCa patients, high SII was associated with adverse pathological features at SRP and survival after SRP. Preoperative SII could help identify patients who might benefit from novel imaging modalities, multimodal therapy or a closer posttreatment surveillance.

Original languageEnglish
Pages (from-to)3771-3779
Number of pages9
JournalWorld Journal of Urology
Volume39
Issue number10
DOIs
Publication statusPublished - Oct 2021

Keywords

  • Biomarkers
  • Prostate cancer
  • Salvage radical prostatectomy
  • SII
  • Survival

ASJC Scopus subject areas

  • Urology

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