Publications by authors named "David M Bottomley"
Article Synopsis
- A clinical trial called RADICALS-HD studied the effects of adding short-course androgen deprivation therapy (ADT) to postoperative radiotherapy in patients with localized prostate cancer after surgery.
- It involved 1480 patients, examining how ADT impacts metastasis-free survival compared to radiotherapy alone, and measured outcomes like distant metastasis and overall survival.
- The trial aimed to see if combining ADT with radiotherapy could improve the 10-year metastasis-free survival rate, potentially increasing it from 80% to 86%.
Article Synopsis
- The study investigates the effectiveness and optimal duration of androgen deprivation therapy (ADT) combined with postoperative radiotherapy for patients with localized prostate cancer following radical prostatectomy.
- A randomised controlled trial, RADICALS-HD, compared short-course ADT (6 months) to long-course ADT (24 months) among participants who met specific criteria, including PSA levels and absence of metastatic disease.
- The primary outcome measured was metastasis-free survival, with the trial aiming to determine if longer ADT duration leads to better survival rates, involving over 1,500 patients from 2008 to 2015.
Background And Purpose: Routine use of I-125 interstitial brachytherapy (BT) alone in intermediate risk (IR) prostate cancer is controversial. It is often combined with external beam radiotherapy (EBRT). The biochemical outcome of a large cohort of only IR disease treated with BT monotherapy is reported.
View Article and Find Full Text PDFFolliculitis-perifolliculitis related to erlotinib therapy spares previously irradiated skin.
J Am Acad Dermatol
January 2009
Erlotinib, a specific epidermal growth factor receptor tyrosine kinase inhibitor, is used to treat various metastatic cancers. It is known to cause an acneiform rash. Herein, we report a case where the rash spared the previous radiotherapy field.
View Article and Find Full Text PDFPurpose: To investigate the variability of prostate implant quality indices between three different methods of calculating the post-implant dose distribution.
Methods And Materials: In a study of 9 permanent prostate implant patients, post-implant dosimetry was carried out using three methods of identifying seed positions within the prostate volume: (1) prostate volumes defined by transrectal ultrasound (TRUS) immediately following implant were registered with shift-film defined seed positions, (2) seeds were identified directly from the post-implant TRUS images, and (3) CT was used to define seed positions and prostate volumes from images acquired at 41-65 days post-implant. For each method, the volume of prostate receiving 90%, 100%, and 150% of the prescribed dose (V90, V100, V150) and the dose delivered to 90% of the prostate volume (D90) were calculated.
Axillary and/or subclavian vein thrombosis is a relatively rare disease, constituting about 2% of all cases of deep venous thrombosis (DVT). We report on a patient who presented with axillary-subclavian vein thrombosis and had metastatic prostatic adenocarcinoma.
View Article and Find Full Text PDFPurpose: An analysis of computed tomography (CT)-based dosimetry was performed to evaluate the variability of different observers' judgements in marking the prostate gland on CT films, and its effect on the parameters that characterise the prostate implantation quality. Accuracy of data entry by the first author in the process of dosimetry procedure has also been evaluated.
Materials And Methods: Four observers were asked to evaluate the prostate volume on CT films for six different patients.