alexa [Photodynamic diagnostics in the urinary tract. Consensus paper of the Working Group for Oncology of the German Society for Urology].
Clinical Research

Clinical Research

Journal of Clinical Trials

Author(s): Stenzl A, Jocham D, Jichlinski P, Junker K, Knig F, , Stenzl A, Jocham D, Jichlinski P, Junker K, Knig F,

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Abstract Because of the frequency of occurrence and the long protracted course, bladder carcinoma is the most expensive solid tumor in terms of costs, from diagnosis to death of the patient. The most important cost factor within the total cost is the treatment of recurrent, non-muscle invasive bladder carcinoma. Photodynamic diagnosis (PDD) improves the early detection rate of non-muscle invasive bladder cancer, especially the detection of carcinoma in situ and severe dysplasia. PDD also reduces the number of residual tumors after TUR-B compared to white-light guided TUR-B and also the early recurrence rate although long-term outcome with hexylaminolaevulinic acid with regards to the general course of bladder cancer is still lacking. PDD has been used mainly for detection of bladder cancer and specifically carcinoma in situ in conjunction with diagnostic and therapeutic transurethral resection of the bladder. In 2006 hexylaminolaevulinic acid (HAL) was approved in the EU (EMEA) as a photosensitizer for the use in photodynamic diagnosis of the bladder. Several guidelines have incorporated PDD as optional form of diagnosis during endoscopy in proven or suspected bladder cancer, but no specific recommendations regarding indication and application of PDD exist. The German group of urologic oncology (AKO) invited urologists and biologists involved in the development of hexylaminolaevulinic acid as well its clinical use to participate in evaluating the data for HAL and its predecessor delta-aminolaevulinic acid (5-ALA). A consensus with regards to the indications, contraindications, technique, pre-clinical data, comparison of HAL and 5-ALA, current results, costs and follow-up was reached and are presented in this paper. This article was published in Urologe A and referenced in Journal of Clinical Trials

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