Trends in Treatment and Perioperative Outcomes of Upper Tract Urothelial Carcinoma: The Evolving Role of Lymphadenectomy and Neoadjuvant Chemotherapy.

Objectives

Real-world data on surgical and multimodal management of upper tract urothelial carcinoma (UTUC) are limited. This study examined epidemiological trends, nephron-sparing surgery adoption, and the perioperative impact of lymphadenectomy (LND) and neoadjuvant chemotherapy (NAC).

Methods

The German Nationwide Inpatient Data (GRAND) registry (2005-2023) identified UTUC patients undergoing radical nephroureterectomy (RNU), endoscopic laser destruction, or segmental ureteral resection (SUR) using OPS codes. Demographics, comorbidities, complications, and in-hospital mortality were extracted from ICD-10-GM data. Multivariable regression adjusted for baseline comorbidities assessed associations between treatment type, LND, NAC, and perioperative outcomes.

Results

Among 53,427 UTUC patients, 77.3% underwent RNU, 13.8% endoscopic laser destruction, and 8.9% SUR. Endoscopic laser use rose from <10% (2005) to about 20% (2023). LND was performed in 13% of RNU cases, increasing from 1.1% to 19%. LND was associated with higher risks of transfusion (OR 1.47, 95% CI 1.37-1.57), acute kidney injury (OR 1.19, 95% CI 1.07-1.32), and ICU admission (OR 1.21, 95% CI 1.13-1.30), without affecting in-hospital mortality. NAC was given to 1.7% of patients, with a five-fold increase over time, and was associated with more transfusions (OR 1.28, 95% CI 1.07-1.52) and urinomas (OR 2.31, 95% CI 1.31-3.78), but not mortality.

Conclusions

UTUC management is evolving, with growing use of endoscopic laser therapy and guideline-aligned lymphadenectomy during nephroureterectomy. Neoadjuvant chemotherapy remains underused despite acceptable perioperative safety, highlighting the need for increased awareness to optimize multimodal treatment.