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Title:Radical irradiation of the prostate. Combination of percutaneous irradiation and irradiation with LDR Ir-192 implants
Authors:ID Kragelj, Borut (Author)
ID Guna, Franc (Author)
ID Burger, Janez (Author)
Files:.pdf PDF - Presentation file, download (223,53 KB)
MD5: 6CB162E4324E05373A8905F5046B34B7
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo OI - Institute of Oncology
Abstract:Background. The irradiation of the carcinomas of the prostate with the doses above the tolerable ones of standard radiotherapy improves the local control of the disease. The aim of this study is to determine the acute toxicity and tolerability of the high-dose prostate irradiation combining external beam radiotherapy (EBRT) and interstitial low dose rate (LDR) brachyradiotherapy (BRT) Ir-192 of the prostate. Material and methods. We examined medical records of 8 patients with localized carcinoma of the prostate (T2-T3 No-x Mo)treated from August 1999 until February 2000. The initial PSA was 2.7-37.5 ng/ml (median 13.7) and Gleason score 4-9 (median 7). Radiotherapy consisted of 48.6-50.4 Gy of EBRT to the prostate and seminal vesicles (4 patients) or the whole pelvis (4 patients) and 20.0-28.0 Gy of interstital LDR Ir-192 BRT given as a single fraction, fluoroscopic guided transperineal Implantation of the prostate. The cumulative doses of percutaneous and interstitial irraditations to the prostate were 68.6 - 79.1 Gy. Results. Acute toxic effects of irradiation though observed in all patients were of only mild intensity. According to the RTOG criteria, 20/30 toxicities were assessed as grade 1, 9/30 as grade 2, and 1/30 as grade 3. In none of the patients, toxic effects required any specific modification of the treatment regimen. Conclusions. The very first experiences indicate moderate toxicity and optimaltolerance of the treatment by patients. An improvement of implantation techniques may be expected with regular CT controls of the implants and extra attentive care of the implants in the urethra region.
Publication status:Published
Publication version:Version of Record
Publication date:01.06.2001
Publisher:Slovenian Medical Association - Slovenian Association of Radiology, Nuclear Medicine Society, Slovenian Society far Radiotherapy and Oncology, and Slovenian Cancer Society
Year of publishing:2001
Number of pages:str. 117-126
Numbering:Letn. 35, št. 2
Source:Ljubljana
PID:20.500.12556/DiRROS-17996 New window
UDC:616-006
ISSN on article:1318-2099
COBISS.SI-ID:13381337 New window
Copyright:by Authors
Note:BSDOCID82150;
Publication date in DiRROS:25.01.2024
Views:466
Downloads:144
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Record is a part of a journal

Title:Radiology and oncology
Shortened title:Radiol. oncol.
Publisher:Slovenian Medical Society - Section of Radiology, Croatian Medical Association - Croatian Society of Radiology
ISSN:1318-2099
COBISS.SI-ID:32649472 New window

Secondary language

Language:Slovenian
Title:Radikalno obsevanje prostate v kombinaciji s perkutanim obsevanjem in implantacijo prostate z LDR Ir 192
Abstract:Izhodišča. Obsevanje prostatičnih karcinomov z dozami višjimi od še sprejemljivih doz ob klasični radioterapiji izboljša lokalno kontrolo bolezni.Namen študije je bil ugotoviti akutno toksičnost ter sprejemljivost visokodoznega obsevanja prostate s kombinacijo perkutanega obsevanja in intersticijske brahiradioterapije, kjer smo implantacijo prostate izvedli z Ir192, ki je imel nizko hitrost doze (LDR). Materijal in metode. Pregledali smo dokumentacijo 8 bolnikov z lokaliziranimi karcinomi prostate (T2-3 N0-X M0). Izhodna vrednost PSA je bila 2,7 - 37,5 (mediana 13,7) ng/ml., točkovanjepo Gleasonu pa 4-9 (mediana 7). Zdravljeni so bili avgusta 1999 do februarja 2000 s kombinacijo perkutanega obsevanja prostate in seminalnih vezikul (4 bolniki) oziroma medeničnega področja (4 bolniki) s 48.6 - 50,4 Gy ter intersicijskega obsevanja prostate LDR IR-192 z 20,0 do 28,0 Gy. Rezultati. Akutni stranski učinki obsevanja, ki so se pojavili pri vseh bolnikih, so bili neizraziti glede na RTOG kriterije je pri 20 do 30 bolnikov ocenjeno kot 1. stopnje, pri 9 do 30 2. stopnje in pri 1 do 30 bolnikov 3. stopnje. Pri nobenem bolniku ni bilo potrebno prilagajati zdravljenja zaradi stranskih učinkov. Zaključki. Začetne izkušnje kažejo na zmerno toksičnost teroptimalno sprejemljivost kombinacije perkutanega obsevanja in implantacije z LDR Ir 192. Tehniko implantacije bi lahko izboljšali z rednimi CT kontrolamiimplantata in z dodatno pozornostjo pri uvajanju igelj v področje obuteri.


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