Abstract：
OBJECTIVES:Photodynamic diagnosis (PDD) using 5-aminolevulinic acid has proved to be a procedure with an outstanding sensitivity for the detection of transitional cell carcinoma of the bladder, in particular in the detection of flat urothelial lesions. We report on our clinical results with 875 patients (1713 PDD procedures) between March 1995 and March 2002. METHODS:A total of 1713 PDD procedures were done in 875 patients. Fluorescence imaging was performed 2 to 3 hours after instillation of 50 mL of a 3% solution of 5-aminolevulinic acid into the bladder by an incoherent light source. In total, specimens from 4630 lesions (2.7 lesions/PDD) were taken. RESULTS:In 34.8% of all biopsies, the histologic finding was malignant; 23.7% of these biopsies had been taken only because of positive fluorescence. In 28.5% of the positive biopsies, flat lesions had been identified. Also, 43.4% of carcinoma in situ and 30.7% of dysplasia II degrees were detected only by positive fluorescence. Of all tumor lesions, 92.0% were detected by PDD compared with 76.3% detected by white light endoscopy. CONCLUSIONS:PDD has proved to be an effective detection device for superficial bladder cancer.
journal_name
Urologyjournal_title
Urologyauthors
Hungerhuber E,Stepp H,Kriegmair M,Stief C,Hofstetter A,Hartmann A,Knuechel R,Karl A,Tritschler S,Zaak Ddoi
10.1016/j.urology.2006.10.015subject
Has Abstractpub_date
2007-02-01 00:00:00pages
260-4issue
2eissn
0090-4295issn
1527-9995pii
S0090-4295(06)02352-1journal_volume
69pub_type
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