International journal of radiation oncology, biology, physics · 2012
Severe late toxicities following concomitant chemoradiotherapy compared to radiotherapy alone in cervical cancer: an inter-era analysis.
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Gondi Vinai, Bentzen Søren M, Sklenar Kathryn L, Dunn Emily F, Petereit Daniel G, Tannehill Scott P, Straub Margaret, Bradley Kristin A
Аннотация
PURPOSE: To compare rates of severe late toxicities following concomitant chemoradiotherapy and radiotherapy alone for cervical cancer.
METHODS AND MATERIALS: Patients with cervical cancer were treated at a single institution with radiotherapy alone or concomitant chemoradiotherapy for curative intent. Severe late toxicity was defined as grade≥3 vaginal, urologic, or gastrointestinal toxicity or any pelvic fracture, using Common Terminology Criteria for Adverse Events version 4.0 (CTCAE), occurring ≥6 months from treatment completion and predating any salvage therapy. Severe late toxicity rates were compared after adjusting for pertinent covariates.
RESULTS: At 3 years, probability of vaginal severe late toxicity was 20.2% for radiotherapy alone and 35.1% for concomitant chemoradiotherapy (P=.026). At 3 years, probability of skeletal severe late toxicity was 1.6% for radiotherapy alone and 7.5% for concomitant chemoradiotherapy (P=.010). After adjustment for case mix, concomitant chemoradiotherapy was associated with higher vaginal (hazard ratio [HR] 3.0, 95% confidence interval [CI], 1.7-5.2, P<.001), and skeletal (HR 7.0, 95% CI 1.4-34.1, P=.016) severe late toxicity. Compared to high dilator compliance, moderate (HR 3.6, 95% CI 2.0-6.5, P<.001) and poor (HR 8.5, 95% CI 4.3-16.9, P<.001) dilator compliance was associated with higher vaginal severe late toxicity. Age>50 was associated with higher vaginal (HR 1.8, 95% CI 1.1-3.0, P=.013) and skeletal (HR 5.7, 95% CI 1.2-27.0, P=.028) severe late toxicity. Concomitant chemoradiotherapy was not associated with higher gastrointestinal (P=.886) or urologic (unadjusted, P=.053; adjusted, P=.063) severe late toxicity.
CONCLUSION: Compared to radiotherapy alone, concomitant chemoradiotherapy is associated with higher rates of severe vaginal and skeletal late toxicities. Other predictive factors include dilator compliance for severe vaginal late toxicity and age for severe vaginal and skeletal late toxicities.
METHODS AND MATERIALS: Patients with cervical cancer were treated at a single institution with radiotherapy alone or concomitant chemoradiotherapy for curative intent. Severe late toxicity was defined as grade≥3 vaginal, urologic, or gastrointestinal toxicity or any pelvic fracture, using Common Terminology Criteria for Adverse Events version 4.0 (CTCAE), occurring ≥6 months from treatment completion and predating any salvage therapy. Severe late toxicity rates were compared after adjusting for pertinent covariates.
RESULTS: At 3 years, probability of vaginal severe late toxicity was 20.2% for radiotherapy alone and 35.1% for concomitant chemoradiotherapy (P=.026). At 3 years, probability of skeletal severe late toxicity was 1.6% for radiotherapy alone and 7.5% for concomitant chemoradiotherapy (P=.010). After adjustment for case mix, concomitant chemoradiotherapy was associated with higher vaginal (hazard ratio [HR] 3.0, 95% confidence interval [CI], 1.7-5.2, P<.001), and skeletal (HR 7.0, 95% CI 1.4-34.1, P=.016) severe late toxicity. Compared to high dilator compliance, moderate (HR 3.6, 95% CI 2.0-6.5, P<.001) and poor (HR 8.5, 95% CI 4.3-16.9, P<.001) dilator compliance was associated with higher vaginal severe late toxicity. Age>50 was associated with higher vaginal (HR 1.8, 95% CI 1.1-3.0, P=.013) and skeletal (HR 5.7, 95% CI 1.2-27.0, P=.028) severe late toxicity. Concomitant chemoradiotherapy was not associated with higher gastrointestinal (P=.886) or urologic (unadjusted, P=.053; adjusted, P=.063) severe late toxicity.
CONCLUSION: Compared to radiotherapy alone, concomitant chemoradiotherapy is associated with higher rates of severe vaginal and skeletal late toxicities. Other predictive factors include dilator compliance for severe vaginal late toxicity and age for severe vaginal and skeletal late toxicities.
Предметные рубрики MeSH
Antineoplastic AgentsBrachytherapyChemoradiotherapyCisplatinCohort StudiesConfidence IntervalsConstriction, PathologicDilatationFemaleFractures, BoneGastrointestinal TractHumansMiddle AgedPatient CompliancePelvic BonesProportional Hazards ModelsRadiotherapyUrinary BladderUterine Cervical NeoplasmsVagina