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Record W1527132173 · doi:10.5489/cuaj.801

Treatment-related toxicity and symptom-related bother followingpostoperative radiotherapy for prostate cancer

2013· article· en· W1527132173 on OpenAlexaffvenue
Michael Sia, George Rodrigues, Cynthia Ménard, Andrew Bayley, Robert G. Bristow, Peter Chung, Mary Gospodarowicz, Michael Milosevic, Padraig Warde, Charles Catton

Bibliographic record

VenueCanadian Urological Association Journal · 2013
Typearticle
Languageen
FieldMedicine
TopicProstate Cancer Diagnosis and Treatment
Canadian institutionsWestern UniversityUniversity of Toronto
Fundersnot available
KeywordsProstate cancerRadiation therapyMedicineToxicityOncologyProstateInternal medicineCancer

Abstract

fetched live from OpenAlex

ntroduction: Patients have reported late effects and symptom-relatedbother following postoperative radiotherapy for prostate cancer.Methods: Patients treated with postoperative radiotherapy weresurveyed at a median 56 months after radiotherapy using the ProstateCancer Radiation Therapy instrument. A retrospective review wasundertaken to obtain Radiation Therapy Oncology Group-LateEffects Normal Tissue (RTOG-LENT) toxicity scores at baselineand during follow-up.Results: Survey response was 64.5%. Median prostate bed radiationdose was 66 Gy given at a median 14 months after surgery.Adjuvant hormone therapy was given for 2 to 3 years to 40 patients;22 received salvage therapy.PCRT impairment subscales were reported as mild for gastrointestinaldysfunction, moderate for genitourinary dysfunction andmarked for sexual dysfunction. The use of one or more incontinencepads daily was reported by 25.6% and was similar to 23%use reported at baseline. Frequent or worse urinary frequency orhematuria was reported by 4.8%, and by 8.4% of respondentsfor bowel dysfunction. Moderate to severe disruption from boweland bladder dysfunction was reported by up to 5.4% and 2.4%of respondents, respectively.Erectile function was described as poor to none in 88.3% ofrespondents, and dissatisfaction with sexual functioning was reportedby 42.7%. Counselling or treatment was offered to 59% of thosefollowed.Conclusion: Combined surgery and postoperative radiotherapy areassociated with low and moderate rates of bowel and bladderdysfunction respectively, with low reported bother. High levelsof sexual dysfunction and bother are seen following combinedtherapy. More effective pre- and post-treatment counselling arerequired, along with research into more effective prevention andtreatment strategies.Introduction : Des patients ont signalé l’apparition d’effets tardifset de symptômes incommodants après une radiothérapie postopératoirepour le traitement d’un cancer de la prostate.Méthodologie : On a mené un sondage auprès de patients traitéspar radiothérapie postopératoire environ 56 mois (valeur mé diane)après cette thérapie à l’aide du questionnaire de qualité de vieliée à une radiothérapie pour traiter un cancer de la prostate (QdVPCRT).Une analyse rétrospective a ensuite été menée à l’aide duquestionnaire du RTOG (Radiation Therapy Oncology Group) surles effets tardifs sur le tissu normal pour obtenir les scores de toxicitéau départ et pendant le suivi.Résultats : Le taux de réponse au sondage était de 64,5 %. Ladose médiane de rayonnement au niveau de la région prostatiqueétait de 66 Gy administrée environ 14 mois (valeur médiane) aprèsl’intervention chirurgicale. Quarante patients ont reçu une hormonothérapieadjuvante pendant 2 à 3 ans; 22 patients ont reçuun traitement de sauvetage.Les sous-échelles de symptômes du questionnaire QdV-PCRTont montré un léger taux de troubles gastro-intestinaux, un tauxmodéré de troubles génito-urinaires et un taux prononcé de troublessexuels. Le recours à une ou plusieurs serviettes pour incontinentspar jour a été signalé par 25,6 % des patients, soit un tauxsimilaire au taux de 23 % signalé au départ. Une miction fréquenteou accrue ou une hématurie ont été signalées par 4,8 % des patients,et par 8,4 % des répondants ayant signalé des troubles intesti -naux. Des troubles intestinaux et vésicaux modérés ou graves ontété signalés par un maximum de 5,4 % et 2,4 % des patients,respectivement.La fonction érectile a été décrite comme étant faible ou nullechez 88,3 % des patients, et le taux signalé d’insatisfaction quantà la fonction sexuelle était de 42,7 %. Des conseils ou un traitementont été offerts à 59 % des patients suivis.Conclusion : L’association d’une intervention chirurgicale et d’uneradiothérapie postopératoire est liée à des taux faibles et modérésde troubles intestinaux et vésicaux, respectivement, et un faibletaux de symptômes incommodants. Des taux élevés de troubleset symptômes incommodants sur le plan sexuel sont observés aprèsle traitement. Un counseling plus efficace avant et après le traitementest nécessaire, de même que des études visant l’élaborationde meilleures stratégies de prévention et de traitement.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.003
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.003
Threshold uncertainty score0.009

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.003
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0030.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.009
GPT teacher head0.252
Teacher spread0.242 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

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Citations14
Published2013
Admission routes2
Has abstractyes

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Same venueCanadian Urological Association JournalSame topicProstate Cancer Diagnosis and TreatmentFrench-language works237,207