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Featured researches published by Miloslava Vaculikova.


Strahlentherapie Und Onkologie | 2010

Dose escalation in prostate radiotherapy up to 82 Gy using simultaneous integrated boost: direct comparison of acute and late toxicity with 3D-CRT 74 Gy and IMRT 78 Gy.

Martin Dolezel; Karel Odrazka; Miloslava Vaculikova; Jaroslav Vanasek; Jana Sefrova; Petr Paluska; Milan Zouhar; Jan Jansa; Zuzana Macingova; Lida Jarosova; Milos Brodak; Petr Moravek; Igor Hartmann

Purpose:To compare acute and late toxicity after three-dimensional conformal radiotherapy to the prostate to 74 Gy (3D-CRT) with intensity-modulated radioterapy to 78 Gy (IMRT 78) and IMRT using simultaneous integrated boost to 82 Gy (IMRT/SIB 82).Patients and Methods:94 patients treated with 3D-CRT to the prostate and base of seminal vesicles to 74 Gy represented the first group. The second group consisted of 138 patients subjected to IMRT covering the prostate and base of seminal vesicles to 78 Gy. The last group was treated with IMRT using SIB. The prescribed doses were 82 Gy and 73.8 Gy in 42 fractions to the prostate and seminal vesicles. Late toxicity was prospectively scored according to the RTOG/FC-LENT scale.Results:Acute gastrointestinal toxicity ≥ grade 2 occurred in 35.1% of patients treated with 3D-CRT, in 16% subjected to IMRT 78, and in 7.7% receiving IMRT/SIB 82. Acute genitourinary toxicity ≥ grade 2 was observed in 26.6% (3D-CRT), 33% (IMRT 78), and 30.7% (IMRT/SIB 82). At 3 years, the estimated cumulative incidence of grade 3 late gastrointestinal toxicity was 14% for 3D-CRT, 5% for IMRT 78, and 2% for IMRT/SIB 82. The difference became significant (log rank p = 0.02). The estimated cumulative incidence of grade 3 late genitourinary toxicity was 9% (3D-CRT), 7% (IMRT 78), and 6% (IMRT/SIB 82) without statistical differences (log rank p = 0.32)Conclusion:SIB enables dose escalation up to 82 Gy with a lower rate of gastrointestinal toxicity grade 3 in comparison with 3D-CRT up to 74 Gy.ZusammenfassungZiel:Vergleich der Akut- und Spättoxizität nach dreidimensionaler konformaler Strahlentherapie der Prostata bis 74 Gy (3D-CRT) mit intensitätsmodulierter Radiotherapie bis 78 Gy (IMRT 78) und mit IMRT mit simultanem integrierten Boost bis 82 Gy (IMRT/ SIB 82).Patienten und Methodik:Die erste Gruppe bestand aus 94 Patienten, die eine 3D-CRT der Prostata und der Bläschendrüsenbasis bis 74 Gy erhielten. Die zweite Gruppe umfasste 138 Patienten, welche mit IMRT der Prostata und der Bläschendrüsenbasis bis 78 Gy behandelt wurden. Die letzte Gruppe erhielt eine IMRT mit SIB. Die verschriebenen Strahlendosen betrugen 82 Gy und 73,8 Gy in 42 Fraktionen auf die Prostata und die Bläschendrüsenbasis. Die Spättoxizität wurde anhand der RTOG/FC-LENT-Skala bewertet.Ergebnisse:Akute gastrointestinale Nebenwirkungen ≥ Grad 2 entwickelten 35,1% der Patienten mit 3D-CRT, 16% mit IMRT 78 und 7,7% mit IMRT/SIB 82. Akute urogenitale Nebenwirkungen ≥ Grad 2 traten bei 26,6% der Patienten mit 3D-CRT, 33% mit IMRT 78 und 30,7% mit IMRT/SIB 82 auf. Nach 3 Jahren betrug die geschätzte kumulative Inzidenz gastrointestinaler Spättoxizität Grad 3 14% für 3D-CRT, 5% für IMRT 78 und 2% für IMRT/SIB 82. Der Unterschied war signifikant (Log-Rank p = 0,02). Die geschätzte kumulative Inzidenz urogenitaler Spättoxizität Grad 3 lag bei 9% (3D-CRT), 7% (IMRT 78) und 6% (IMRT/ SIB 82) und zeigte keine Signifikanz (Log-Rank p = 0,32).Schlussfolgerung:Die Dosissteigerung auf 82 Gy mit SIB führt im Vergleich mit der 3D-CRT bis 74 Gy zu einer geringeren Rate an gastrointestinaler Spättoxizität Grad 3.


Strahlentherapie Und Onkologie | 2003

Prognostic impact of hemoglobin level prior to radiotherapy on survival in patients with glioblastoma.

Karel Odrazka; Jiri Petera; Tereza Kohlova; Martin Dolezel; Miloslava Vaculikova; Milan Zouhar; Václav Málek Ph.D; Vladimir Hobza; Ivan Látr; Stanislav Nemecek; Miroslav Šercl; Pavel Ryska; M. Blaha; Eva Cermakova

Purpose:To evaluate prognostic factors in patients with glioblastoma treated with postoperative or primary radiotherapy.Patients and Methods:From 1989 to 2000, a total of 100 patients underwent irradiation as part of their initial treatment for glioblastoma. All patients had undergone surgery or biopsy followed by conventional external-beam radiotherapy. 85 patients who received the planned dose of irradiation (60 Gy in 30 fractions) were analyzed for the influence of prognostic factors. 73/85 (86%) of patients were given postoperative irradiation, while 12/85 (14%) of patients were primarily treated with radiotherapy after biopsy.Results:The median overall survival was 10.1 months (range, 3.7–49.8 months), the 1- and 2-year survival rates were 41% and 5%, respectively. Univariate analysis revealed age ≤ 55 years (p < 0.001), pre-radiotherapy hemoglobin (Hb) level > 12 g/dl (p = 0.009), and pre-radiotherapy dose of dexamethasone ≤ 2 mg/day (p = 0.005) to be associated with prolonged survival. At multivariate analysis, younger age (p < 0.001), higher Hb level (p = 0.002), lower dose of dexamethasone (p = 0.026), and a hemispheric tumor location (p = 0.019) were identified as independent prognostic factors for longer survival. The median survival for patients with an Hb level > 12 g/dl was 12.1 months compared to 7.9 months for those with a lower Hb level. Contingency-table statistics showed no significant differences for the two Hb groups in the distribution of other prognostic factors.Conclusion:The results indicate that lower Hb level prior to radiotherapy for glioblastoma can adversely influence prognosis. This finding deserves further evaluation.Ziel:Evaluation prognostischer Faktoren bei Patienten mit Glioblastom, die mit postoperativer oder primärer Strahlentherapie behandelt wurden.Patienten und Methodik:Bei 100 Patienten mit Glioblastom wurde in den Jahren 1989–2000 die Strahlentherapie im Rahmen der Primärbehandlung angewandt. Bei allen Patienten wurde eine Operation oder Biopsie mit nachfolgender konventioneller perkutaner Bestrahlung durchgeführt. Der Einfluss der prognostischen Faktoren wurde bei 85 Patienten, die die geplante Strahlendosis (60 Gy in 30 Fraktionen) erhielten, evaluiert. 73/85 Patienten (86%) wurden mit postoperativer Bestrahlung, 12/85 Patienten (14%) mit primärer Strahlentherapie und Biopsie behandelt.Ergebnisse:Die mittlere Überlebenszeit betrug 10,1 (3,7–49,8) Monate, die Überlebenszeit nach 1 und 2 Jahren lag bei 41% bzw. 5%. Mittels der univariaten Analyse stellten sich folgende Faktoren dar, die mit einer längeren Überlebenszeit verbunden sind: ein Alter ≤ 55 Jahre (p < 0,001), eine Hämoglobin-(Hb-)Konzentration zu Beginn der Strahlentherapie > 12 g/dl (p = 0,009) und eine prätherapeutische Dexamethasondosis ≤ 2 mg/Tag (p = 0,005). Die multivariate Analyse ermittelte ein jüngeres Alter (p < 0,001), eine höhere Hb-Konzentration (p = 0,002), eine niedrigere Dexamethasondosis (p = 0,026) und eine hemisphärische Tumorlokalisation (p = 0.019) als unabhängige prognostische Faktoren für eine längere Überlebenszeit. Die mittlere Überlebenszeit bei Patienten mit einer Hb-Konzentration > 12 g/dl betrug 12,1 Monate, bei Patienten mit einem niedrigeren Blut-Hb-Wert dagegen nur 7,9 Monate. Die Kontingenztabellenstatistik zeigte keine signifikanten Unterschiede in der Distribution der anderen prognostischen Faktoren bei beiden Hb-Gruppen.Schlussfolgerung:Die Ergebnisse weisen darauf hin, dass eine niedrigere Hb-Konzentration vor Beginn der Strahlentherapie wegen Glioblastoms einen negativen Einfluss auf die Prognose haben kann. Diese Beobachtung verdient weitere Aufmerksamkeit.


International Journal of Urology | 2010

Late toxicity after conformal and intensity-modulated radiation therapy for prostate cancer: Impact of previous surgery for benign prostatic hyperplasia

Karel Odrazka; Martin Dolezel; Jaroslav Vanasek; Miloslava Vaculikova; Milan Zouhar; Jana Sefrova; Petr Paluska; Milan Vošmik; Tereza Kohlova; Iveta Kolarova; Pavel Navrátil; Milos Brodak; Petr Prošvic; Petr Hoffmann

Objectives:  To retrospectively compare late toxicity of conventional‐dose three‐dimensional conformal radiation therapy (3D‐CRT) and high‐dose intensity‐modulated radiation therapy (IMRT) for prostate cancer.


Strahlentherapie Und Onkologie | 2010

Dose Escalation in Prostate Radiotherapy up to 82 Gy Using Simultaneous Integrated Boost

Martin Doležel; Karel Odrazka; Miloslava Vaculikova; Jaroslav Vanasek; Jana Sefrova; Petr Paluska; Milan Zouhar; Jan Jansa; Zuzana Macingova; Lida Jarosova; Milos Brodak; Petr Moravek; Igor Hartmann

Purpose:To compare acute and late toxicity after three-dimensional conformal radiotherapy to the prostate to 74 Gy (3D-CRT) with intensity-modulated radioterapy to 78 Gy (IMRT 78) and IMRT using simultaneous integrated boost to 82 Gy (IMRT/SIB 82).Patients and Methods:94 patients treated with 3D-CRT to the prostate and base of seminal vesicles to 74 Gy represented the first group. The second group consisted of 138 patients subjected to IMRT covering the prostate and base of seminal vesicles to 78 Gy. The last group was treated with IMRT using SIB. The prescribed doses were 82 Gy and 73.8 Gy in 42 fractions to the prostate and seminal vesicles. Late toxicity was prospectively scored according to the RTOG/FC-LENT scale.Results:Acute gastrointestinal toxicity ≥ grade 2 occurred in 35.1% of patients treated with 3D-CRT, in 16% subjected to IMRT 78, and in 7.7% receiving IMRT/SIB 82. Acute genitourinary toxicity ≥ grade 2 was observed in 26.6% (3D-CRT), 33% (IMRT 78), and 30.7% (IMRT/SIB 82). At 3 years, the estimated cumulative incidence of grade 3 late gastrointestinal toxicity was 14% for 3D-CRT, 5% for IMRT 78, and 2% for IMRT/SIB 82. The difference became significant (log rank p = 0.02). The estimated cumulative incidence of grade 3 late genitourinary toxicity was 9% (3D-CRT), 7% (IMRT 78), and 6% (IMRT/SIB 82) without statistical differences (log rank p = 0.32)Conclusion:SIB enables dose escalation up to 82 Gy with a lower rate of gastrointestinal toxicity grade 3 in comparison with 3D-CRT up to 74 Gy.ZusammenfassungZiel:Vergleich der Akut- und Spättoxizität nach dreidimensionaler konformaler Strahlentherapie der Prostata bis 74 Gy (3D-CRT) mit intensitätsmodulierter Radiotherapie bis 78 Gy (IMRT 78) und mit IMRT mit simultanem integrierten Boost bis 82 Gy (IMRT/ SIB 82).Patienten und Methodik:Die erste Gruppe bestand aus 94 Patienten, die eine 3D-CRT der Prostata und der Bläschendrüsenbasis bis 74 Gy erhielten. Die zweite Gruppe umfasste 138 Patienten, welche mit IMRT der Prostata und der Bläschendrüsenbasis bis 78 Gy behandelt wurden. Die letzte Gruppe erhielt eine IMRT mit SIB. Die verschriebenen Strahlendosen betrugen 82 Gy und 73,8 Gy in 42 Fraktionen auf die Prostata und die Bläschendrüsenbasis. Die Spättoxizität wurde anhand der RTOG/FC-LENT-Skala bewertet.Ergebnisse:Akute gastrointestinale Nebenwirkungen ≥ Grad 2 entwickelten 35,1% der Patienten mit 3D-CRT, 16% mit IMRT 78 und 7,7% mit IMRT/SIB 82. Akute urogenitale Nebenwirkungen ≥ Grad 2 traten bei 26,6% der Patienten mit 3D-CRT, 33% mit IMRT 78 und 30,7% mit IMRT/SIB 82 auf. Nach 3 Jahren betrug die geschätzte kumulative Inzidenz gastrointestinaler Spättoxizität Grad 3 14% für 3D-CRT, 5% für IMRT 78 und 2% für IMRT/SIB 82. Der Unterschied war signifikant (Log-Rank p = 0,02). Die geschätzte kumulative Inzidenz urogenitaler Spättoxizität Grad 3 lag bei 9% (3D-CRT), 7% (IMRT 78) und 6% (IMRT/ SIB 82) und zeigte keine Signifikanz (Log-Rank p = 0,32).Schlussfolgerung:Die Dosissteigerung auf 82 Gy mit SIB führt im Vergleich mit der 3D-CRT bis 74 Gy zu einer geringeren Rate an gastrointestinaler Spättoxizität Grad 3.


Physica Medica | 2005

Comparison of rectal dose-volume constraints for IMRT prostate treatment planning

Karel Odrazka; Milan Zouhar; Jiri Petera; Miloslava Vaculikova; Martin Dolezel; Milan Vošmik; Petr Tucek

The purpose of this paper is to compare different sets of rectal dose-volume constraints and to develop input criteria for the intensity-modulated radiation therapy (IMRT) of prostate cancer. The IMRI treatment plans were created using Varian planning system (CadPlan with Helios module) for ten patients with localized prostate cancer (isocenter dose 78 Gy). The posterior portion of rectum was contoured as an extra volume (help volume). Three sets of input parameters for rectum with gradually increasing priorities (25-50-75-90) were designed for the inverse treatment planning: 1. dose-volume constraints allowing no more than 50, 40, 20 and 10% of the rectum volume be irradiated to 50, 60, 70, and 75 Gy, respectively-volume-based plans, priorities 25-90 (V25-90 plans); 2. maximum dose constraint of 74.1 Gy for rectum-plans with limited maximum reactal dose, priorities 25-90 (M25-90 plans); 3. maximum dose constraint of 50 Gy for the help volume-plans with limited maximum dose for the help volume, priorities 25-90 (H25-90 plans). Dose homogeneity in the planning target volume (PTV) and the rectal volumes (RV) irradiated to 50, 60, 70, and 75 Gy (RV 50-75 Gy) were recorded. Rectum sparing improved for all the plans with increasing priority. While the M plans had the lowest RV 75 Gy values, the H plans gave the minimum RV 50-70 Gy values. Plans were considered acceptable if at least 98% of the PTV was treated to 95% of the prescribed dose. In particular plan groups, the V75, M75, and H50 plans, together with the V50+M75 and H50+M75 combined plans, satisfied this condition and yielded the lowest rectal doses. The H50+M75 combined plan allowed optimal sparing of rectum (RV 50 Gy 51.6%, RV 60 Gy 38.5%, RV 70 Gy 26.0%, and RV 75 Gy 9.1%, respectively). An optima set of dose-based rectal constraints (maximum rectal dose 74.1 Gy, maximum help volume dose 50 Gy) has been developed for Varian planning software. These parameters will constitute a starting point for the prostate IMRT plan optimization.


Acta Oncologica | 2001

Conformal Radiotherapy for Prostate Cancer&Longer Duration of Acute Genitourinary Toxicity in Patients with Prior History of Invasive Urological Procedure

Karel Odrazka; Jaroslav Vanasek; Miloslava Vaculikova; Jiri Petera; Milan Zouhar; Zdenek Zoul; Jan Stejskal; Zuzana Skrabkova; David Kadecka

The incidence and predictors of acute toxicity were evaluated in patients treated with three-dimensional conformal radiotherapy (3D-CRT) for localized prostate cancer. Between December 1997 and November 1999, 116 patients with T1-T3 prostatic carcinoma were enrolled in the study. Ninety patients were treated with 70 Gy and 26 patients with T3 tumors received 74 Gy. Of the 116 patients 42 (36.2%) had a prior history of invasive urological procedure (IUP) (transurethral resection of the prostate or transvesical prostatectomy for benign prostatic hyperplasia). Acute gastrointestinal (GI) and genitourinary (GU) symptoms were graded according to the EORTC/RTOG scoring system. Toxicity duration after the completion of 3D-CRT was recorded. The majority of patients experienced only mild or no (Grade 1) acute toxicities. Medications for GI and GU symptoms (Grade 2) were required by 28.4% and 12.9% of patients, respectively. Only one case of Grade 3 GI toxicity (0.9%) was observed. Seven patients (6.1%) experienced severe GU toxicity (Grade 3 or 4). No correlation was found between acute toxicity and age, stage, dose (70 Gy vs. 74 Gy), IUP and pelvic lymphadenectomy. A significant relationship was observed between the duration of acute GU toxicity and prior IUP. Symptoms persisted for more than 4 weeks in 51.9% and 26.0% of patients with and without a prior history of IUP, respectively (p = 0.02). The incidence of acute complications, associated with 3D-CRT for prostate cancer, was acceptable in our cohort of patients. A prior history of IUP resulted in a significantly longer duration of acute GU toxicity.The incidence and predictors of acute toxicity were evaluated in patients treated with three-dimensional conformal radiotherapy (3D-CRT) for localized prostate cancer. Between December 1997 and November 1999, 116 patients with T1-T3 prostatic carcinoma were enrolled in the study. Ninety patients were treated with 70 Gy and 26 patients with T3 tumors received 74 Gy. Of the 116 patients 42 (36.2%) had a prior history of invasive urological procedure (IUP) (transurethral resection of the prostate or transvesical prostatectomy for benign prostatic hyperplasia). Acute gastrointestinal (GI) and genitourinary (GU) symptoms were graded according to the EORTC/RTOG scoring system. Toxicity duration after the completion of 3D-CRT was recorded. The majority of patients experienced only mild or no (Grade 1) acute toxicities. Medications for GI and GU symptoms (Grade 2) were required by 28.4% and 12.9% of patients, respectively. Only one case of Grade 3 GI toxicity (0.9%) was observed. Seven patients (6.1%) experienced severe GU toxicity (Grade 3 or 4). No correlation was found between acute toxicity and age, stage, dose (70 Gy vs. 74 Gy), IUP and pelvic lymphadenectomy. A significant relationship was observed between the duration of acute GU toxicity and prior IUP. Symptoms persisted for more than 4 weeks in 51.9% and 26.0% of patients with and without a prior history of IUP, respectively (p = 0.02). The incidence of acute complications, associated with 3D-CRT for prostate cancer, was acceptable in our cohort of patients. A prior history of IUP resulted in a significantly longer duration of acute GU toxicity.


International Journal of Urology | 2003

Bi-weekly epirubicin, etoposide and low-dose dexamethasone for hormone-refractory prostate cancer

Karel Odrazka; Miloslava Vaculikova; Jiri Petera; Petr Moravek; Petr Prošvic; Zdenek Zoul; Lubos Rydel; Milos Brodak; Zbynek Veselsky; Miroslav Louda; Eva Šimáková

Background: Recent studies have demonstrated the efficacy and favorable toxicity profile of chemotherapy regimens given at lower doses and frequent intervals. The aim of our study was to evaluate the efficacy and toxicity of a bi‐weekly chemohormonal regimen consisting of epirubicin, etoposide, and low‐dose dexamethasone (EED) in patients with hormone‐refractory prostate cancer (HRPC).


Klinicka onkologie : casopis Ceske a Slovenske onkologicke spolecnosti | 2013

[Five-year results of IMRT for prostate cancer - tumor control].

Karel Odrážka; Martin Doležel; Jaroslav Vaňásek; Miloslava Vaculikova; Milan Zouhar; Jana Sefrova; Petr Paluska; Milan Vošmik; Tereza Kohlova; Iveta Kolářová; Miloš Broďák; Pavel Navrátil; Petr Prošvic; Petr Hoffmann; Abdulbaset Hafuda

BACKGROUND Intensity-modulated radiation therapy (IMRT) is the method of choice in external-beam radiotherapy tolocalized prostate cancer. This work analyses five year results of IMRT with a dose of 78/82 Gy. PATIENTS AND METHODS From June 2003 to December 2007, the IMRT technique was employed to treat 233 patients with T1-3 N0 M0 prostate cancer. It was supplemented by hormone therapy especially in high-risk patients. Two IMRT techniques were applied - IMRT with a dose of 78 Gy in 39 fractions to prostate and seminal vesicles (SV) (IMRT 78) and IMRT with simultaneous integrated 82 Gy boost to prostate concurrently with 73,8 Gy in 41 fractions to SV (IMRT SIB 82). The IMRT 78 technique was used in 160 patients (69%). Seventy-three (31%) patients with intermediate (IR) or high-risk (HR) prostate cancer without SV involvement were treated with IMRT SIB 82 technique. The PSA relapse was defined as an increase in PSA of at least 2.0 ng/mL above the nadir or in comparison to the value at the initiation of hormone therapy. Clinical relapse was defined as an occurence of distant metastases and/or local recurrence. RESULTS The median follow-up of our patients´ population was 4.3 years (range 0.6-8.9 years). The estimated 5-year PSA relapse-free survival in low-risk (LR), IR and HR patients was 86%, 89% and 83%, respectively (p = NS). In a multivariate analysis, Gleason score (GS) 8-10 was associated with significantly higher risk of PSA relapse (RR 2.76), while higher age at the time of diagnosis significantly decreased the PSA relapse risk (RR 0.94). The estimated 5-year clinical relapse-free survival in LR, IR and HR patients was 100%, 99% and 95%, respectively (p = NS). In a univariate analysis, both GS and PSA had a significant impact on the 5-year clinical relapse-free survival - GS 2-7 97 % vs GS 8-10 88 % (p = 0.03), PSA 20 98 % vs PSA > 20 85 % (p < 0.01). CONCLUSION Treatment of localized prostate cancer using IMRT with a dose 78/82 Gy yielded an excellent 5-year tumour control with a risk of clinical relapse being less than 5%.


Strahlentherapie Und Onkologie | 2010

Dose Escalation in Prostate Radiotherapy up to 82 Gy Using Simultaneous Integrated Boost@@@Dosissteigerung bei Prostatabestrahlung durch einen simultanen integrierten Boost bis 82 Gy. Vergleich der Akut‑ und Spättoxizität nach 3D-CRT bis 74 Gy und IMRT bis 78 Gy: Direct Comparison of Acute and Late Toxicity with 3D-CRT 74 Gy and IMRT 78 Gy

Martin Doležel; Karel Odrazka; Miloslava Vaculikova; Jaroslav Vanasek; Jana Sefrova; Petr Paluska; Milan Zouhar; Jan Jansa; Zuzana Macingova; Lida Jarosova; Milos Brodak; Petr Moravek; Igor Hartmann

Purpose:To compare acute and late toxicity after three-dimensional conformal radiotherapy to the prostate to 74 Gy (3D-CRT) with intensity-modulated radioterapy to 78 Gy (IMRT 78) and IMRT using simultaneous integrated boost to 82 Gy (IMRT/SIB 82).Patients and Methods:94 patients treated with 3D-CRT to the prostate and base of seminal vesicles to 74 Gy represented the first group. The second group consisted of 138 patients subjected to IMRT covering the prostate and base of seminal vesicles to 78 Gy. The last group was treated with IMRT using SIB. The prescribed doses were 82 Gy and 73.8 Gy in 42 fractions to the prostate and seminal vesicles. Late toxicity was prospectively scored according to the RTOG/FC-LENT scale.Results:Acute gastrointestinal toxicity ≥ grade 2 occurred in 35.1% of patients treated with 3D-CRT, in 16% subjected to IMRT 78, and in 7.7% receiving IMRT/SIB 82. Acute genitourinary toxicity ≥ grade 2 was observed in 26.6% (3D-CRT), 33% (IMRT 78), and 30.7% (IMRT/SIB 82). At 3 years, the estimated cumulative incidence of grade 3 late gastrointestinal toxicity was 14% for 3D-CRT, 5% for IMRT 78, and 2% for IMRT/SIB 82. The difference became significant (log rank p = 0.02). The estimated cumulative incidence of grade 3 late genitourinary toxicity was 9% (3D-CRT), 7% (IMRT 78), and 6% (IMRT/SIB 82) without statistical differences (log rank p = 0.32)Conclusion:SIB enables dose escalation up to 82 Gy with a lower rate of gastrointestinal toxicity grade 3 in comparison with 3D-CRT up to 74 Gy.ZusammenfassungZiel:Vergleich der Akut- und Spättoxizität nach dreidimensionaler konformaler Strahlentherapie der Prostata bis 74 Gy (3D-CRT) mit intensitätsmodulierter Radiotherapie bis 78 Gy (IMRT 78) und mit IMRT mit simultanem integrierten Boost bis 82 Gy (IMRT/ SIB 82).Patienten und Methodik:Die erste Gruppe bestand aus 94 Patienten, die eine 3D-CRT der Prostata und der Bläschendrüsenbasis bis 74 Gy erhielten. Die zweite Gruppe umfasste 138 Patienten, welche mit IMRT der Prostata und der Bläschendrüsenbasis bis 78 Gy behandelt wurden. Die letzte Gruppe erhielt eine IMRT mit SIB. Die verschriebenen Strahlendosen betrugen 82 Gy und 73,8 Gy in 42 Fraktionen auf die Prostata und die Bläschendrüsenbasis. Die Spättoxizität wurde anhand der RTOG/FC-LENT-Skala bewertet.Ergebnisse:Akute gastrointestinale Nebenwirkungen ≥ Grad 2 entwickelten 35,1% der Patienten mit 3D-CRT, 16% mit IMRT 78 und 7,7% mit IMRT/SIB 82. Akute urogenitale Nebenwirkungen ≥ Grad 2 traten bei 26,6% der Patienten mit 3D-CRT, 33% mit IMRT 78 und 30,7% mit IMRT/SIB 82 auf. Nach 3 Jahren betrug die geschätzte kumulative Inzidenz gastrointestinaler Spättoxizität Grad 3 14% für 3D-CRT, 5% für IMRT 78 und 2% für IMRT/SIB 82. Der Unterschied war signifikant (Log-Rank p = 0,02). Die geschätzte kumulative Inzidenz urogenitaler Spättoxizität Grad 3 lag bei 9% (3D-CRT), 7% (IMRT 78) und 6% (IMRT/ SIB 82) und zeigte keine Signifikanz (Log-Rank p = 0,32).Schlussfolgerung:Die Dosissteigerung auf 82 Gy mit SIB führt im Vergleich mit der 3D-CRT bis 74 Gy zu einer geringeren Rate an gastrointestinaler Spättoxizität Grad 3.


Visceral medicine | 2006

Testicular Choriocarcinoma with Jejunal Metastasis Complicated by Intestinal Perforation and Acute Peritonitis

Pavel Veselý; Stanislav Filip; Miloslava Vaculikova; Karel Odrážka; Bohumil Jon; Dimitar Hadži Nikolov; Jan Jansa; Bohuslav Melichar

Intestinal metastases are rare, and only few cases of intestinal perforations secondary to metastatic cancer have been reported. Case Report: We report here a case of a 25-year-old male with testicular pure choriocarcinoma and synchronous bilateral multiple lung metastases. After failure of four lines of chemotherapy, in the context of rapidly progressive advanced metastatic disease, the metastases appeared not only in the usual metastatic sites but also in less common sites, including small bowel and skin. The course was complicated by perforation of bowel secondary to metastasis and purulent peritonitis that necessitated surgical intervention. Conclusion: The possibility of small bowel perforation should be considered in differential diagnosis of patients with advanced testicular tumors presenting with abdominal pain.

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Milan Zouhar

Charles University in Prague

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Karel Odrazka

Charles University in Prague

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Petr Paluska

Charles University in Prague

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Martin Dolezel

Charles University in Prague

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Jan Jansa

Charles University in Prague

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Jiri Petera

Charles University in Prague

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Karel Odrážka

Charles University in Prague

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Martin Doležel

Charles University in Prague

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Milos Brodak

Charles University in Prague

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