Early stage prostate cancer: biochemical recurrence after treatment

Area of Science:

• Oncology
• Radiation Oncology
• Urology

Background:

• Localized prostate cancer treatment involves surgery or radiotherapy.
• Biochemical recurrence is a key indicator of treatment outcome.
• Predictive factors for recurrence require further investigation.

Purpose of the Study:

• To determine the frequency of biochemical recurrence in localized prostate cancer patients treated with surgery or radiotherapy.
• To identify diagnostic factors associated with an increased risk of biochemical recurrence.
• To compare recurrence rates between radical prostatectomy and radiotherapy.

Main Methods:

• Retrospective chart analysis of 483 patients.
• Data collected from March 2000 to December 2009.
• Analysis of factors influencing biochemical recurrence.

Main Results:

• Higher initial PSA levels and higher risk disease correlated with increased biochemical recurrence.
• Biochemical recurrence rates: high-risk (25.9%), intermediate-risk (10.7%), low-risk (5.5%).
• No significant difference in recurrence between radical prostatectomy and radiotherapy; 15% recurrence with 3D conformal radiotherapy.

Conclusions:

• Radical prostatectomy and radiotherapy yield similar treatment results for localized prostate cancer.
• Modern 3D conformal radiotherapy is more effective than older radiation techniques.
• Initial PSA and risk stratification are crucial for predicting recurrence.