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Submission Status
Submitted
Abstract
Abstract Title
Prognostic Comparison of Surgical Modalities in Early-Stage Prostate Cancer: Development and Validation of a Survival Prediction Nomogram
Presentation Type
Podium Abstract
Manuscript Type
Clinical Research
Abstract Category *
Oncology: Prostate
Author's Information
Number of Authors (including submitting/presenting author) *
4
No more than 10 authors can be listed (as per the Good Publication Practice (GPP) Guidelines).
Please ensure the authors are listed in the right order.
Country
China
Co-author 1
Yuxuan Yang u202010333@hust.edu.cn Tongji Hospital Urology Wuhan China *
Co-author 2
Gui-Chen Ye yewenjianjiaolian@163.com Tongji Hopistal Urology Wuhan China
Co-author 3
Kuang-Di Luo u202010340@hust.edu.com Tongji Hospital Urology Wuhan China
Co-author 4
Shao-Gang Wang sgwangtjm@163.com Tongji Hospital Urology Wuhan China
Co-author 5
Co-author 6
Co-author 7
Co-author 8
Co-author 9
Co-author 10
Co-author 11
Co-author 12
Co-author 13
Co-author 14
Co-author 15
Co-author 16
Co-author 17
Co-author 18
Co-author 19
Co-author 20
Abstract Content
Introduction
This study examined the prognostic differences between radical prostatectomy (RP), transurethral resection of the prostate (TURP), laser ablation (LA), and cryoablation (CA) in early-stage prostate cancer (T1-2N0M0) and developed a survival prediction tool based on these four surgical modalities.
Materials and Methods
Using the SEER database (2010–2020), we identified T1-2N0M0 prostate cancer patients treated with RP, TURP, LA, or CA. To reduce baseline imbalances, 1:1 propensity score matching (PSM) with a caliper of 0.1 was applied. Multivariate Cox regression identified independent prognostic factors, which were used for stratification. Kaplan-Meier analysis assessed long-term survival across treatment groups. After PSM, patients were split into training and validation cohorts (7:3 ratio). Lasso and Cox regression were used to integrate independent prognostic factors for OS into a nomogram, evaluated using calibration curves, decision curve analysis (DCA), and risk stratification.
Results
A total of 92,670 patients were included, with significant baseline differences reduced in 3,088 patients after PSM. Survival analysis revealed that patients in the TURP and LA groups had worse OS and CSS compared to CA. RP did not demonstrate a significant OS advantage over CA. Multivariate Cox regression identified age, Gleason score, and PSA as independent prognostic factors. Kaplan-Meier analysis demonstrated that RP and CA provided superior long-term survival outcomes. A nomogram based on these factors achieved good calibration and discrimination (C-index: 0.732 in the training set). Decision curve analysis confirmed its clinical utility. Risk stratification showed significant survival differences among low-, medium-, and high-risk groups, underscoring the nomogram’s clinical relevance.
Conclusions
RP remains the preferred treatment for T1-2N0M0 prostate cancer due to its significant survival benefits. CA is a viable alternative for selected patients, particularly those with PSA ≤4 ng/mL, age >72, or Gleason score ≤7. The nomogram facilitates personalized treatment planning, optimizing prognosis in early-stage prostate cancer.
Keywords
prostate cancer; radical prostatectomy; cryoablation; prognosis; SEER database
Figure 1
https://storage.unitedwebnetwork.com/files/1/44930dd8ac7baf3f8a31a5ca2e518fe1.png
Figure 1 Caption
Flowchart of the patients screening process.
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Character Count
2111
Vimeo Link
Presentation Details
Session
Free Paper Podium(07): Oncology Prostate (B)
Date
Aug. 15 (Fri.)
Time
14:36 - 14:42
Presentation Order
12