Postprostatectomy ultrasound-guided transrectal implantation of gold markers for external beam radiotherapy : Technique and complications rate
SourceStrahlentherapie und Onkologie, 189, 6, (2013), pp. 476-481
Article / Letter to editor
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Epidemiology, Biostatistics & HTA
Strahlentherapie und Onkologie
SubjectNCEBP 1: Molecular epidemiology; NCEBP 1: Molecular epidemiology ONCOL 5: Aetiology, screening and detection; ONCOL 3: Translational research; ONCOL 4: Quality of Care; ONCOL 5: Aetiology, screening and detection
BACKGROUND AND PURPOSE: Postprostatectomy radiotherapy (RT) improves survival in adjuvant and salvage settings. The implantation technique and complications rate of gold markers in the prostate bed for high-precision RT were analyzed. PATIENTS AND METHODS: Patients undergoing postprostatectomy RT for prostate-specific antigen (PSA) relapse or high-risk disease were enrolled in the study. Under transrectal ultrasound guidance, three fine gold markers were implanted in the prostate bed and the technical difficulties of insertion were documented. Patients received our self-designed questionnaires concerning complications and pain. The influence of anticoagulants and coumarins on bleeding was analyzed, as was the effect of potential risk factors on pain. RESULTS: In 77 consecutive patients, failure of marker implantation or marker migration was seen in six cases. Rectal bleeding was reported by 10 patients and 1 had voiding complaints. No macroscopic hematuria persisting for more than 3 days was observed. Other complications included rectal discomfort (n = 2), nausea (n = 1), abdominal discomfort (n = 1), and pain requiring analgesics (n = 4). No major complications were reported. On a 0-10 visual analogue scale (VAS), the mean pain score was 3.7. No clinically significant risk factors for complications were identified. CONCLUSION: Transrectal implantation of gold markers in the prostate bed is feasible and safe. Alternatives like cone beam computed tomography (CBCT) should be considered, but the advantages of gold marker implantation for high-precision postprostatectomy RT would seem to outweigh the minor risks involved.
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