Abstract
Purpose:
To investigate the prognostic value of preoperative prognostic nutritional index (PNI) to predict oncological outcome and intravesical recurrence (IVR) in upper tract urothelial carcinoma (UTUC) after radical nephroureterectomy (RNU).
Method:
This study involved the clinical data of 255 patients with UTUC who had undergone RNU from 2004 to 2019 at our institution. Patients were grouped according to an optimal value of preoperative PNI. Kaplan–Meier analyses and Cox proportional hazards models were used to analyze the associations of preoperative PNI with progression-free survival (PFS), cancer-specific survival (CSS), overall survival (OS), and IVR.
Result:
Patients with low PNI were more likely to be older, have higher tumor stage, higher eGFR, and multifocal lesions. No significant association was found between PNI and CSS, IVR. In subgroup analysis according to the risk stratification, low PNI was associated with worse PFS, CSS, and OS for patients with higher risk. Multivariate analyses showed that elevated PNI was an independent prognostic indicator for PFS (P = 0.014) and OS (P = 0.048).
Conclusion:
A low PNI is an independent predictor of PFS and OS in patients with UTUC after RNU. By subgroup analysis, the prognostic value of PNI was limited to patients with higher risk. PNI may become a useful biomarker to predict oncological outcomes in patients with UTUC after RNU.
Acknowledgment
The authors thank Xieraili Tiemuerniyazi, Ph.D., from the Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College for assistance with the statistical analysis.
Ethical Approval
This was a retrospective study and clinical data were de-identified before analysis; therefore, ethical approval was not required. Our study follows the principles of the Declaration of Helsinki.
Availability of Data and Material
All data generated or analyzed during this study are included in this published article.
Disclosure Statement
The authors declare that they have no competing interests.
Additional information
Funding
Notes on contributors
Jianyong Liu
Jianyong Liu: Project development, Data collection, Data analysis, Manuscript writing; Pengjie Wu: Project development, Data collection, Data analysis, Manuscript writing; Shicong Lai: Data collection, Data analysis, Manuscript editing; Xinda Song: Data collection, Manuscript writing; Miao Wang: Data collection, Manuscript writing; Xuan Wang: Data analysis, Manuscript editing; Shengjie Liu: Data analysis, Manuscript editing; Huimin Hou: Data analysis, Manuscript editing; Yaoguang Zhang: Project development, Data analysis, Manuscript editing; Jianye Wang: Project development, Data analysis, Manuscript editing.
Pengjie Wu
Jianyong Liu: Project development, Data collection, Data analysis, Manuscript writing; Pengjie Wu: Project development, Data collection, Data analysis, Manuscript writing; Shicong Lai: Data collection, Data analysis, Manuscript editing; Xinda Song: Data collection, Manuscript writing; Miao Wang: Data collection, Manuscript writing; Xuan Wang: Data analysis, Manuscript editing; Shengjie Liu: Data analysis, Manuscript editing; Huimin Hou: Data analysis, Manuscript editing; Yaoguang Zhang: Project development, Data analysis, Manuscript editing; Jianye Wang: Project development, Data analysis, Manuscript editing.
Shicong Lai
Jianyong Liu: Project development, Data collection, Data analysis, Manuscript writing; Pengjie Wu: Project development, Data collection, Data analysis, Manuscript writing; Shicong Lai: Data collection, Data analysis, Manuscript editing; Xinda Song: Data collection, Manuscript writing; Miao Wang: Data collection, Manuscript writing; Xuan Wang: Data analysis, Manuscript editing; Shengjie Liu: Data analysis, Manuscript editing; Huimin Hou: Data analysis, Manuscript editing; Yaoguang Zhang: Project development, Data analysis, Manuscript editing; Jianye Wang: Project development, Data analysis, Manuscript editing.
Xinda Song
Jianyong Liu: Project development, Data collection, Data analysis, Manuscript writing; Pengjie Wu: Project development, Data collection, Data analysis, Manuscript writing; Shicong Lai: Data collection, Data analysis, Manuscript editing; Xinda Song: Data collection, Manuscript writing; Miao Wang: Data collection, Manuscript writing; Xuan Wang: Data analysis, Manuscript editing; Shengjie Liu: Data analysis, Manuscript editing; Huimin Hou: Data analysis, Manuscript editing; Yaoguang Zhang: Project development, Data analysis, Manuscript editing; Jianye Wang: Project development, Data analysis, Manuscript editing.
Miao Wang
Jianyong Liu: Project development, Data collection, Data analysis, Manuscript writing; Pengjie Wu: Project development, Data collection, Data analysis, Manuscript writing; Shicong Lai: Data collection, Data analysis, Manuscript editing; Xinda Song: Data collection, Manuscript writing; Miao Wang: Data collection, Manuscript writing; Xuan Wang: Data analysis, Manuscript editing; Shengjie Liu: Data analysis, Manuscript editing; Huimin Hou: Data analysis, Manuscript editing; Yaoguang Zhang: Project development, Data analysis, Manuscript editing; Jianye Wang: Project development, Data analysis, Manuscript editing.
Xuan Wang
Jianyong Liu: Project development, Data collection, Data analysis, Manuscript writing; Pengjie Wu: Project development, Data collection, Data analysis, Manuscript writing; Shicong Lai: Data collection, Data analysis, Manuscript editing; Xinda Song: Data collection, Manuscript writing; Miao Wang: Data collection, Manuscript writing; Xuan Wang: Data analysis, Manuscript editing; Shengjie Liu: Data analysis, Manuscript editing; Huimin Hou: Data analysis, Manuscript editing; Yaoguang Zhang: Project development, Data analysis, Manuscript editing; Jianye Wang: Project development, Data analysis, Manuscript editing.
Shengjie Liu
Jianyong Liu: Project development, Data collection, Data analysis, Manuscript writing; Pengjie Wu: Project development, Data collection, Data analysis, Manuscript writing; Shicong Lai: Data collection, Data analysis, Manuscript editing; Xinda Song: Data collection, Manuscript writing; Miao Wang: Data collection, Manuscript writing; Xuan Wang: Data analysis, Manuscript editing; Shengjie Liu: Data analysis, Manuscript editing; Huimin Hou: Data analysis, Manuscript editing; Yaoguang Zhang: Project development, Data analysis, Manuscript editing; Jianye Wang: Project development, Data analysis, Manuscript editing.
Huimin Hou
Jianyong Liu: Project development, Data collection, Data analysis, Manuscript writing; Pengjie Wu: Project development, Data collection, Data analysis, Manuscript writing; Shicong Lai: Data collection, Data analysis, Manuscript editing; Xinda Song: Data collection, Manuscript writing; Miao Wang: Data collection, Manuscript writing; Xuan Wang: Data analysis, Manuscript editing; Shengjie Liu: Data analysis, Manuscript editing; Huimin Hou: Data analysis, Manuscript editing; Yaoguang Zhang: Project development, Data analysis, Manuscript editing; Jianye Wang: Project development, Data analysis, Manuscript editing.
Yaoguang Zhang
Jianyong Liu: Project development, Data collection, Data analysis, Manuscript writing; Pengjie Wu: Project development, Data collection, Data analysis, Manuscript writing; Shicong Lai: Data collection, Data analysis, Manuscript editing; Xinda Song: Data collection, Manuscript writing; Miao Wang: Data collection, Manuscript writing; Xuan Wang: Data analysis, Manuscript editing; Shengjie Liu: Data analysis, Manuscript editing; Huimin Hou: Data analysis, Manuscript editing; Yaoguang Zhang: Project development, Data analysis, Manuscript editing; Jianye Wang: Project development, Data analysis, Manuscript editing.
Jianye Wang
Jianyong Liu: Project development, Data collection, Data analysis, Manuscript writing; Pengjie Wu: Project development, Data collection, Data analysis, Manuscript writing; Shicong Lai: Data collection, Data analysis, Manuscript editing; Xinda Song: Data collection, Manuscript writing; Miao Wang: Data collection, Manuscript writing; Xuan Wang: Data analysis, Manuscript editing; Shengjie Liu: Data analysis, Manuscript editing; Huimin Hou: Data analysis, Manuscript editing; Yaoguang Zhang: Project development, Data analysis, Manuscript editing; Jianye Wang: Project development, Data analysis, Manuscript editing.