Publications by authors named "Luc M F Moonen"

Background: Penile cancer (PeCa) is rare, and the survival of patients with advanced disease remains poor. A better understanding of where treatment fails could aid the development of new treatment strategies.

Objective: To describe the disease course after pelvic lymph node (LN) treatment for PeCa.

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Context: The primary lesion in penile cancer is managed by surgery or radiation. Surgical options include penile-sparing surgery, amputative surgery, laser excision, and Moh's micrographic surgery. Radiation is applied as external beam radiotherapy (EBRT) and brachytherapy.

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Background: In patients with oligometastatic recurrent prostate cancer, standard treatment is androgen deprivation therapy (ADT). However, ADT has many potential side effects that may result in impaired quality of life. Early identification to select patients suitable for stereotactic ablative radiotherapy (SABR) is of utmost importance to prevent or delay start of ADT and its side effects.

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Background And Purpose: The reliability of post-implant dosimetry in the OR depends on the geometrical variability of implant and anatomy after the procedure. The purpose was to gain detailed information on seed displacement patterns in different sectors of the prostate.

Materials And Methods: Of 33 patients with stranded seed implants the seed geometry and the dose distribution were compared between the situation in the OR just after the procedure, based on ultrasound images, and the situation after 1month, based on registered CT and MR images.

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Background And Purpose: To investigate possible relationships between the dose to the sub-segments of the lower urinary tract and lower urinary tract symptoms (LUTS) after brachytherapy of the prostate.

Materials And Methods: This study involved 225 patients treated for prostate cancer with I-125 seeds. Post-implant dose-volume histograms of the prostate, urethra, bladder wall, bladder neck and external sphincter were determined.

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Purpose: We investigated the treatment results and outcomes of patients with pathological node positive penile carcinoma who experienced an inguinal recurrence after therapeutic lymphadenectomy, and determined the clinicopathological features predictive of such recurrences.

Materials And Methods: Data of 161 patients with pN+ penile carcinoma were analyzed. Ipsilateral postoperative radiotherapy was given if histopathology revealed 2 or more metastases and/or extranodal extension.

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Purpose: We assessed the prognostic significance of extranodal extension, defined as tumor extension through the lymph node capsule into the perinodal fibrous-adipose tissue, as well as several other risk factors in node positive penile cancer cases.

Materials And Methods: We analyzed prospectively collected data on a consecutive series of 156 chemotherapy naïve patients with proven lymph node involvement who underwent therapeutic regional lymphadenectomy. Postoperative external radiotherapy was indicated when histopathological analysis revealed more tumor than 1 intranodal metastasis.

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Purpose: Reduction of the number of implantation needles for prostate brachytherapy will shorten the duration of implantation procedures and possibly reduce trauma-related morbidity. The purpose of this study was to investigate possibilities for the minimization of the number of needles and to investigate the consequences for the dose distribution.

Methods And Materials: A planning study for six different prostate volumes was performed.

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Purpose: Lower urinary tract symptoms are frequently observed after I-125 seed implantation of the prostate. More knowledge about causes and predictors is necessary to be able to develop less toxic implantation techniques. The aim of this study was to identify implantation related factors that contribute to post-implant urinary morbidity.

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Purpose: After prostate implantation, dose calculation is usually based on a single imaging session, assuming no geometrical changes occur during the months of dose accumulation. In this study, the effect of changes in anatomy and implant geometry on the dose distribution was investigated.

Materials And Methods: One day, 1 month and 312 months after seed implantation, a combined TRUS-CT scan was made of 13 patients.

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Purpose: We identified pathological parameters of inguinal lymph node involvement with the aim of predicting pelvic lymph node involvement and survival.

Materials And Methods: A total of 308 patients with penile carcinoma and adequate followup were included in this study. The outcome of 102 patients who underwent lymphadenectomy for lymph node metastases was analyzed further.

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Objective: To evaluate the long-term results of salvage cystectomy after interstitial radiotherapy (IRT) and external beam radiotherapy (EBRT) for transitional cell carcinoma, and to assess the morbidity and functional results of the different urinary diversions used.

Patients And Methods: The records of 27 patients treated with salvage cystectomy in one institution between 1988 and 2003 were retrospectively analysed.

Results: Salvage cystectomy was used after failure of IRT in 14 or EBRT in 13 patients, with a 3- and 5-year survival probability of 46% (95% confidence interval 26-65) and 33 (11-54)%.

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