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1.
Eur Arch Otorhinolaryngol ; 279(7): 3629-3637, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35076745

RESUMO

INTRODUCTION: Hypopharyngeal cancer (HC) is an aggressive and life-threatening malignancy that requires a complex multimodal treatment. The aims of the present study were to analyze, in locally advanced HC patients, the oncologic and swallowing outcomes and their predictive factors according to the therapeutic strategy. METHODS: All patients with locally advanced HC (T3/T4, N0-3, M0) treated at our institution between 2000 and 2020 were included in this retrospective study. Patients were classified in 3 groups according to the therapeutic strategy: primary radical surgery (RS), induction chemotherapy (ICT) or definitive (chemo)-radiation therapy ((C)RT). Predictive factors of oncologic outcomes (overall, cause-specific and recurrence-free survival: OS, CSS and RFS) and swallowing outcome (dysphagia outcome and severity scale: DOSS) were investigated in univariate and multivariate analysis. RESULTS: A total of 217 patients were included in this study (RS: 40; ICT: 106; (C)RT: 71). 5-year OS, CSS and RFS rates were 36, 38 and 32%, respectively. ICT was associated with improved oncologic and swallowing outcomes in univariate analysis. After multivariate analysis, patient age ≥ 70 years (p = 0.0002) was the only factor significantly associated with a worse OS, whereas patient age ≥ 70 years (p = 0.002) and N stage ≥ 2 (p = 0.01) were significantly associated with a worse CSS. Comorbidity level (KFI ≥ 2; p = 0.01) and N stage (≥ 2; p = 0.02) were significantly associated with worse swallowing outcomes. CONCLUSION: In selected locally advanced HC patients, an ICT-based therapeutic strategy offers acceptable oncologic and functional outcomes. Patient age, N stage and comorbidity level are the main determinants of oncologic and functional outcomes.


Assuntos
Neoplasias Hipofaríngeas , Idoso , Terapia Combinada , Deglutição , Humanos , Neoplasias Hipofaríngeas/patologia , Neoplasias Hipofaríngeas/terapia , Quimioterapia de Indução , Estadiamento de Neoplasias , Estudos Retrospectivos , Resultado do Tratamento
2.
Eur Arch Otorhinolaryngol ; 276(9): 2531-2539, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31240456

RESUMO

BACKGROUND: Providing cancer patients with adequate information is essential to their confidence and satisfaction regarding medical care. The aims of this study were to evaluate the information given to patients undergoing total pharyngolaryngectomy (TPL) as well as the evolution and predictors of patient quality of life (QoL). METHODS: We conducted a prospective multicentric study on patients undergoing TPL for a locally advanced laryngeal/hypopharyngeal cancer. All patients completed the EORTC QLQ-INFO25, QLQ-C30, and QLQ-H&N35 questionnaires, before and after surgery. RESULTS: This study enrolled 46 patients. Between the pre- and post-therapeutic periods, we observed no significant changes in the global QLQ-INFO25 and QLQ-C30 scores. However, we found a significant deterioration in 4 QLQ-INFO25 scales/items and in social functioning, as well as an increase of sense, speech, and social contact problems. N-stage and professional activity were significant predictors of preoperative QLQ-INFO25 scores. Younger age was significantly associated with financial difficulties, whereas professional activity and lower education level were significant predictors of xerostomia and swallowing problems, respectively. CONCLUSION: In patients undergoing TPL, we observed significant changes in QLQ-INFO25 scores between the pre- and post-treatment periods and, particularly, a deterioration of patient satisfaction with the information received. Several clinical factors were identified as significant predictors of QLQ-INFO25 and QoL scores.


Assuntos
Neoplasias Hipofaríngeas , Neoplasias Laríngeas , Laringectomia/educação , Educação de Pacientes como Assunto , Faringectomia/educação , Complicações Pós-Operatórias/psicologia , Qualidade de Vida , Idoso , Feminino , Humanos , Neoplasias Hipofaríngeas/psicologia , Neoplasias Hipofaríngeas/cirurgia , Neoplasias Laríngeas/psicologia , Neoplasias Laríngeas/cirurgia , Laringectomia/métodos , Masculino , Pessoa de Meia-Idade , Educação de Pacientes como Assunto/métodos , Educação de Pacientes como Assunto/estatística & dados numéricos , Satisfação do Paciente , Faringectomia/métodos , Estudos Prospectivos , Inquéritos e Questionários
3.
Eur Arch Otorhinolaryngol ; 274(2): 1103-1111, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-27796554

RESUMO

Free-flap mandibular reconstruction is a highly specialized procedure associated with severe complications necessitating re-interventions and re-hospitalizations. This surgery is expensive in terms of health workers' time, equipment, medical devices and drugs. Our main objective was to assess the direct hospital cost generated by osseocutaneous free-flap surgery in a multicentric prospective micro-costing study. Direct medical costs evaluated from a hospital perspective were assessed using a micro-costing method from the first consultation with the surgeon until the patient returns home, thus confirming the success or failure of the free-flap procedure. The mean total cost for free-flap intervention was 34,009€ (5151-119,604€), the most expensive item being the duration of hospital bed occupation, representing 30-90% of the total cost. In the event of complications, the mean cost increased by 77.3%, due primarily to hospitalization in ICU and the conventional unit. This surgery is effective and provides good results but remains highly complex and costly.


Assuntos
Retalhos de Tecido Biológico/economia , Custos Hospitalares/estatística & dados numéricos , Reconstrução Mandibular/economia , Adolescente , Adulto , Idoso , Feminino , França , Retalhos de Tecido Biológico/transplante , Hospitalização/economia , Hospitalização/estatística & dados numéricos , Humanos , Masculino , Reconstrução Mandibular/métodos , Pessoa de Meia-Idade , Estudos Prospectivos , Reoperação/economia , Adulto Jovem
4.
Radiother Oncol ; 188: 109905, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37678620

RESUMO

BACKGROUND AND PURPOSE: The aim of our prospective study was to assess the prognostic value of 18F-FDG PET/CT performed two months post treatment for anal canal neoplasm. POPULATION AND METHODS: Consecutive patients with histologically proved anal cancer, with 18F-FDG PET/CT pre and two months post treatment were included. Patients were not previously treated for this neoplasm and then received radiotherapy ± chemotherapy. Clinical and pathologic data were collected and for 18F-FDG PET/CT visual and quantitative analysis (standardized uptake value, metabolic volume) were performed; response was classified according to EORTC and PERCIST criteria. The results were assessed for disease free survival and local recurrence free survival using the log-Rank test RESULTS: From December 2014 to September 2019, 94 consecutive patients were screened and 78 were included in this study. Median follow-up was 51 months. Two months post treatment, 37 patients (47.4%) had a complete radiological response according to both EORTC and PERCIST criteria, 66 patients (84.6%) had a clinical complete response. For disease free survival, the prognostic value of complete response was statistically significant (p=0.02) with 18F-FDG PET/CT and with clinical examination (p<0.001). For local recurrence free survival, the prognostic value with 18F-FDG PET/CT was lower (p=0.04) than clinical examination (p < 0.007). CONCLUSION: While clinical examination remains the gold standard for post treatment evaluation in anal cancer, 18F-FDG PET/CT has a statistically significant prognostic value. These two assessments could be combined to improve early evaluation.

5.
Comput Struct Biotechnol J ; 21: 5136-5143, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37920813

RESUMO

Purpose: Meta-analyses failed to accurately identify patients with non-metastatic breast cancer who are likely to benefit from chemotherapy, and metabolomics could provide new answers. In our previous published work, patients were clustered using five different unsupervised machine learning (ML) methods resulting in the identification of three clusters with distinct clinical and simulated survival data. The objective of this study was to evaluate the survival outcomes, with extended follow-up, using the same 5 different methods of unsupervised machine learning. Experimental design: Forty-nine patients, diagnosed between 2013 and 2016, with non-metastatic BC were included retrospectively. Median follow-up was extended to 85.8 months. 449 metabolites were extracted from tumor resection samples by combined Liquid chromatography-mass spectrometry (LC-MS). Survival analyses were reported grouping together Cluster 1 and 2 versus cluster 3. Bootstrap optimization was applied. Results: PCA k-means, K-sparse and Spectral clustering were the most effective methods to predict 2-year progression-free survival with bootstrap optimization (PFSb); as bootstrap example, with PCA k-means method, PFSb were 94% for cluster 1&2 versus 82% for cluster 3 (p = 0.01). PCA k-means method performed best, with higher reproducibility (mean HR=2 (95%CI [1.4-2.7]); probability of p ≤ 0.05 85%). Cancer-specific survival (CSS) and overall survival (OS) analyses highlighted a discrepancy between the 5 ML unsupervised methods. Conclusion: Our study is a proof-of-principle that it is possible to use unsupervised ML methods on metabolomic data to predict PFS survival outcomes, with the best performance for PCA k-means. A larger population study is needed to draw conclusions from CSS and OS analyses.

6.
JCO Clin Cancer Inform ; 7: e2200130, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-37235837

RESUMO

PURPOSE: RUBY is a tool for extracting clinical data on breast cancer from French medical records on the basis of named entity recognition models combined with keyword extraction and postprocessing rules. Although initial results showed a high precision of the system in extracting clinical information from surgery, pathology, and biopsy reports (≥92.7%) and good precision in extracting data from consultation reports (81.8%), its validation is needed before its use in routine practice. METHODS: In this work, we analyzed RUBY's performance compared with the manual entry and we evaluated the generalizability of the approach on different sets of reports collected on a span of 40 years. RESULTS: RUBY performed similarly or better than the manual entry for 15 of 27 variables. It showed similar performances when structuring newer reports but failed to extract entities for which changes in terminology appeared. Finally, our tool could automatically structure 15,990 reports in 77 minutes. CONCLUSION: RUBY can automate the data entry process of a set of variables and reduce its burden, but a continuous evaluation of the format and structure of the reports and a subsequent update of the system is necessary to ensure its robustness.


Assuntos
Neoplasias da Mama , Humanos , Feminino , Neoplasias da Mama/diagnóstico , Armazenamento e Recuperação da Informação , Registros Eletrônicos de Saúde , Software , Biópsia
7.
Eur J Endocrinol ; 188(3)2023 Mar 02.
Artigo em Inglês | MEDLINE | ID: mdl-36799885

RESUMO

OBJECTIVE: Indeterminate thyroid nodules (ITN) are common and often lead to (sometimes unnecessary) diagnostic surgery. We aimed to evaluate the performance of two machine learning methods (ML), based on routinely available features to predict the risk of malignancy (RM) of ITN. DESIGN: Multi-centric diagnostic retrospective cohort study conducted between 2010 and 2020. METHODS: Adult patients who underwent surgery for at least one Bethesda III-V thyroid nodule (TN) with fully available medical records were included. Of the 7917 records reviewed, eligibility criteria were met in 1288 patients with 1335 TN. Patients were divided into training (940 TN) and validation cohort (395 TN). The diagnostic performance of a multivariate logistic regression model (LR) and its nomogram, and a random forest model (RF) in predicting the nature and RM of a TN were evaluated. All available clinical, biological, ultrasound, and cytological data of the patients were collected and used to construct the two algorithms. RESULTS: There were 253 (19%), 693 (52%), and 389 (29%) TN classified as Bethesda III, IV, and V, respectively, with an overall RM of 35%. Both cohorts were well-balanced for baseline characteristics. Both models were validated on the validation cohort, with performances in terms of specificity, sensitivity, positive predictive value, negative predictive value, and area under the receiver operating characteristic curve of 90%, 57.3%, 73.4%, 81.4%, 84% (CI95%: 78.5%-89.5%) for the LR model, and 87.6%, 54.7%, 68.1%, 80%, 82.6% (CI95%: 77.4%-87.9%) for the RF model, respectively. CONCLUSIONS: Our ML models performed well in predicting the nature of Bethesda III-V TN. In addition, our freely available online nomogram helped to refine the RM, identifying low-risk TN that may benefit from surveillance in up to a third of ITN, and thus may reduce the number of unnecessary surgeries.


Assuntos
Neoplasias da Glândula Tireoide , Nódulo da Glândula Tireoide , Adulto , Humanos , Nódulo da Glândula Tireoide/diagnóstico , Nódulo da Glândula Tireoide/cirurgia , Nódulo da Glândula Tireoide/patologia , Neoplasias da Glândula Tireoide/diagnóstico , Neoplasias da Glândula Tireoide/cirurgia , Neoplasias da Glândula Tireoide/patologia , Estudos Retrospectivos , Biópsia por Agulha Fina , Fatores de Risco
8.
Int J Radiat Oncol Biol Phys ; 117(2): 357-369, 2023 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-37257661

RESUMO

PURPOSE: Patients with large uveal melanomas are at major risk of liver metastases. Some patients are reluctant to undergo the standard treatment (ie, immediate enucleation). Proton therapy yields 5-year local control rates and eyeball retention of >85% and ≈20% in large uveal melanomas. Patients with T3/T4 uveal melanomas refusing enucleation were randomized between standard 4 to 13 Gy-fraction or moderately hypofractionated 8 to 6.5 Gy-fraction proton therapy. The main endpoint was the 2-year local recurrence-free survival without enucleation. METHODS AND MATERIALS: A single-masked 1:2 randomized phase 2 trial was conducted between 2015 and 2017 with planned endoresection and distance to the posterior pole as strata. Local events were defined as local relapse, or enucleation due to complications or relapse. RESULTS: The 32 patients, with a mean age of 64 years, had T3/4 (N = 17/15), M1 (N = 2) uveal melanomas, of mean tumor diameter and thickness of 16.5 mm and 9.1 mm, and of posterior location in 56.5%. Median follow-up was 56.7 months. The 2-year local recurrence-free survival rate without enucleation was 79% (95% confidence interval, 65%-96%), similar in both arms. There were 9 enucleations, 3 at relapse and 6 for toxicities. Twelve patients had distant metastases. The 2-year-overall survival was 72% (95% confidence interval, 58%-89%). At baseline, visual acuity by average logarithm value of the minimum angle of resolution was 0.68 and 0.70 in the standard and experimental arms, and at last follow-up 2 and 1.7, with mean differences of 1.44 and 1.01, respectively (P = .39). CONCLUSION: An 8-times 6.5 Gy scheme is feasible without deteriorating local control and with similar toxicity rates in patients with large uveal melanomas. Larger studies incorporating adjuvant treatments are warranted.


Assuntos
Melanoma , Terapia com Prótons , Neoplasias Uveais , Humanos , Pessoa de Meia-Idade , Terapia com Prótons/efeitos adversos , Recidiva Local de Neoplasia , Neoplasias Uveais/radioterapia , Neoplasias Uveais/patologia , Melanoma/radioterapia , Melanoma/patologia
9.
JCO Clin Cancer Inform ; 6: e2100199, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35960900

RESUMO

PURPOSE: Electronic medical records are a valuable source of information about patients' clinical status but are often free-text documents that require laborious manual review to be exploited. Techniques from computer science have been investigated, but the literature has marginally focused on non-English language texts. We developed RUBY, a tool designed in collaboration with IBM-France to automatically structure clinical information from French medical records of patients with breast cancer. MATERIALS AND METHODS: RUBY, which exploits state-of-the-art Named Entity Recognition models combined with keyword extraction and postprocessing rules, was applied on clinical texts. We investigated the precision of RUBY in extracting the target information. RESULTS: RUBY has an average precision of 92.8% for the Surgery report, 92.7% for the Pathology report, 98.1% for the Biopsy report, and 81.8% for the Consultation report. CONCLUSION: These results show that the automatic approach has the potential to effectively extract clinical knowledge from an extensive set of electronic medical records, reducing the manual effort required and saving a significant amount of time. A deeper semantic analysis and further understanding of the context in the text, as well as training on a larger and more recent set of reports, including those containing highly variable entities and the use of ontologies, could further improve the results.


Assuntos
Neoplasias da Mama , Processamento de Linguagem Natural , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/terapia , Registros Eletrônicos de Saúde , Feminino , França , Humanos , Semântica
10.
Comput Struct Biotechnol J ; 18: 1509-1524, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32637048

RESUMO

Genomics and transcriptomics have led to the widely-used molecular classification of breast cancer (BC). However, heterogeneous biological behaviors persist within breast cancer subtypes. Metabolomics is a rapidly-expanding field of study dedicated to cellular metabolisms affected by the environment. The aim of this study was to compare metabolomic signatures of BC obtained by 5 different unsupervised machine learning (ML) methods. Fifty-two consecutive patients with BC with an indication for adjuvant chemotherapy between 2013 and 2016 were retrospectively included. We performed metabolomic profiling of tumor resection samples using liquid chromatography-mass spectrometry. Here, four hundred and forty-nine identified metabolites were selected for further analysis. Clusters obtained using 5 unsupervised ML methods (PCA k-means, sparse k-means, spectral clustering, SIMLR and k-sparse) were compared in terms of clinical and biological characteristics. With an optimal partitioning parameter k = 3, the five methods identified three prognosis groups of patients (favorable, intermediate, unfavorable) with different clinical and biological profiles. SIMLR and K-sparse methods were the most effective techniques in terms of clustering. In-silico survival analysis revealed a significant difference for 5-year predicted OS between the 3 clusters. Further pathway analysis using the 449 selected metabolites showed significant differences in amino acid and glucose metabolism between BC histologic subtypes. Our results provide proof-of-concept for the use of unsupervised ML metabolomics enabling stratification and personalized management of BC patients. The design of novel computational methods incorporating ML and bioinformatics techniques should make available tools particularly suited to improving the outcome of cancer treatment and reducing cancer-related mortalities.

11.
Surg Oncol ; 34: 168-173, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32891324

RESUMO

INTRODUCTION: The proportion of elderly patients with head and neck cancer is increasing. However, predictive factors of postoperative outcomes are insufficiently explored in this population. In this study, we aimed to determine predictive factors of postoperative outcomes in elderly patients undergoing head and neck free-flap reconstructive surgery in order to determine criteria on which patient selection could be based. METHODS: All patients aged 65 years or over who underwent head and neck free-flap reconstructive surgery at our institution, between 2000 and 2016, were included in this retrospective study. Predictive factors of postoperative outcomes were investigated in uni- and multivariate analysis. RESULTS: Two-hundred patients were included in the study. Older age (>70, >75 or > 80 yrs) had no significant impact on postoperative outcomes. Free flap failure local and general complications rates were 11%, 34% and 43%, respectively. Oromandibular reconstruction (p = 0.04) was significantly associated with free flap failure and salvage surgery (p = 0.04) with local complications. A high comorbidity level (Charlson Comorbidity Index score ≥ 4; p = 0.02) was associated with a higher risk of general complications. A G8 (Geriatric 8 questionnaire) score < 15 (p = 0.004), a high comorbidity level (Kaplan-Feinstein Index score ≥ 2; p = 0.04) and oromandibular reconstruction (p = 0.04) were associated with poor swallowing function at 6 months. CONCLUSION: Head and neck free flap reconstruction should be offered to fit (G8 score ≥ 15) elderly patients without severe comorbidities (KFI < 2 or CCI < 4), particularly when oral/pharyngeal soft-tissue reconstruction is planned.


Assuntos
Nutrição Enteral/estatística & dados numéricos , Retalhos de Tecido Biológico/cirurgia , Neoplasias de Cabeça e Pescoço/cirurgia , Tempo de Internação/estatística & dados numéricos , Seleção de Pacientes , Procedimentos de Cirurgia Plástica/métodos , Complicações Pós-Operatórias/epidemiologia , Idoso , Idoso de 80 Anos ou mais , Comorbidade , Feminino , Seguimentos , França/epidemiologia , Humanos , Masculino , Prognóstico , Estudos Retrospectivos
12.
Surg Oncol ; 28: 236-242, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30851907

RESUMO

OBJECTIVES: The purposes of this study were to assess the evolution of quality of life (QoL) in patients with head and neck squamous cell carcinoma (HNSCC) undergoing oncologic surgery and to determine the predictive factors of post-therapeutic QoL. METHODS: All HNSCC patients who underwent primary surgery, between 2012 and 2014, were enrolled in this prospective multicentric study. Patients completed the EORTC QLQ-C30 and QLQ-H&N35 questionnaires before surgery and at 6 months after treatment. Predictive factors of post-therapeutic QoL scores were determined. RESULTS: A total of 200 patients were included in this study. There was no significant deterioration of global QoL and no significant increase in general symptoms between the pre- and post-therapeutic periods, but a significant deterioration in role and social functioning, and an increase of most head and neck symptoms. Tumor stage, tumor site and treatment modalities (type of surgery, adjuvant therapy) were the main predictors of QoL scores. We found a negative correlation between satisfaction with the information received and global QoL score or several functioning scales. CONCLUSION: HNSCC surgical treatment affects patients QoL mainly by increasing head and neck symptoms, which results in social and role functioning deterioration. These results are of great interest to improve multidisciplinary care of HNSCC patients.


Assuntos
Carcinoma de Células Escamosas/cirurgia , Neoplasias de Cabeça e Pescoço/cirurgia , Qualidade de Vida , Procedimentos Cirúrgicos Operatórios/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma de Células Escamosas/patologia , Feminino , Seguimentos , Neoplasias de Cabeça e Pescoço/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Prospectivos , Inquéritos e Questionários
13.
Int J Radiat Oncol Biol Phys ; 103(2): 374-380, 2019 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-30612961

RESUMO

PURPOSE: To evaluate the feasibility and toxicity of a single-fraction 8-Gy stereotactic boost after whole-breast irradiation in early breast cancer. The primary aim of this phase 2 study was to evaluate cutaneous breast toxicity using National Cancer Institute Common Terminology Criteria for Adverse Events (version 4) 3 months after the boost. Secondary objectives were local control, survival, and patient-reported quality of life using the European Organisation for Research and Treatment of Cancer QLQ-C30 and breast-specific European Organisation for Research and Treatment of Cancer QLQ-BR 23 questionnaires. METHODS AND MATERIALS: Patients with invasive ductal or lobular pT1-2 breast cancer treated with lumpectomy with clear margins and pN0 were included. Patients requiring chemotherapy were excluded. RESULTS: Twenty-eight eligible patients received the planned boost, and 26 had hormonal therapy. The procedure was technically successful without procedural complications. A median of 3 fiducials were tracked, and 115 beams were used. There were 22 acute grade 1 breast skin toxicities, including fibrosis, pain, erythema, or pigmentation. There were 2 acute grade 2 erythemas. Median skin boost dose was inversely correlated with acute skin toxicity (P = .028). QLQ-C30 scores revealed acute dyspnea and arm symptoms without correlation to the boost dose. Breast symptom QLQ-BR23 scores did not deteriorate, although upset with hair loss and systemic side effects of hormonal therapy were observed. After a median follow-up of 38 months, 1 patient had in-boost-field relapse, and there were 5 late grade 1 and 1 grade 2 skin toxicities. CONCLUSIONS: Single-fraction stereotactic boost after conventional whole-breast irradiation in early breast cancer is feasible with minor toxicities. Quality of life and specific breast items showed excellent patient acceptance.


Assuntos
Neoplasias da Mama/radioterapia , Radiocirurgia/métodos , Procedimentos Cirúrgicos Robóticos/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias da Mama/psicologia , Carcinoma Ductal de Mama/psicologia , Carcinoma Ductal de Mama/radioterapia , Carcinoma Lobular/psicologia , Carcinoma Lobular/radioterapia , Estudos de Viabilidade , Feminino , Fibrose , Humanos , Mastectomia Segmentar/métodos , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Estudos Prospectivos , Qualidade de Vida , Índice de Gravidade de Doença , Pele/efeitos da radiação , Inquéritos e Questionários , Tomografia Computadorizada por Raios X
14.
Clin Pharmacokinet ; 46(11): 953-63, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-17922560

RESUMO

BACKGROUND AND OBJECTIVE: Tegafur is an oral fluorouracil prodrug used in the treatment of colorectal cancer. The aim of this phase II, crossover, bioequivalence study was to compare the pharmacokinetics (primary objective) and tolerability (secondary objective) of tegafur-uracil (UFT) given as three daily doses (tid, reference schedule) with those obtained using a more convenient schedule of two daily doses (bid, new schedule). PATIENT AND METHODS: Twenty-one patients with metastatic colorectal cancer (median age 63 years) received the same oral daily dose of UFT (300 mg/m(2)/day) plus leucovorin (90 mg/day) divided into two or three daily doses. Patients were randomised to receive the first cycle either tid (12 patients) or bid (9 patients). The eligibility criteria included an Eastern Co-operative Oncology Group performance status of < or =1 and adequate bone-marrow, hepatic and renal function. The pharmacokinetics of uracil, fluorouracil and tegafur (high-performance liquid chromatography assays) were evaluated at steady state over 24 hours (area under the plasma concentration-time curve from 0 to 24 hours [AUC(24)], minimum plasma concentration [C(min)] and maximum plasma concentration [C(max)]). The pharmacokinetic parameters were analysed after logarithmic transformation according to a general linear model. RESULTS: The AUC(24)values of fluorouracil (p < 0.0001), uracil (p < 0.0001) and tegafur (p = 0.058) were greater with the bid schedule than the tid schedule. The bid : tid AUC(24) ratio (90% CI) was 1.8 (1.55, 2.10) with fluorouracil, 2.0 (1.59, 2.57) with uracil and 1.2 (1.02, 1.36) with tegafur, indicating that the bid and tid schedules were not bioequivalent. No major toxicity (grade 4) was reported, and grade 3 adverse events accounted for 9% of the total adverse events. Intra-patient comparison of the maximum toxicity grade did not demonstrate a significant difference between the bid and tid schedules (p = 0.18). CONCLUSION: A 2-fold increase in the fluorouracil and uracil AUC values was observed with UFT administered bid compared with tid, without a significant impact on tolerability, suggesting that the more convenient bid schedule may improve the UFT therapeutic index.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/farmacocinética , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Colorretais/tratamento farmacológico , Administração Oral , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Área Sob a Curva , Disponibilidade Biológica , Cromatografia Líquida de Alta Pressão/métodos , Neoplasias Colorretais/metabolismo , Neoplasias Colorretais/patologia , Estudos Cross-Over , Diarreia/induzido quimicamente , Feminino , Fluoruracila/administração & dosagem , Fluoruracila/farmacocinética , Humanos , Leucovorina/administração & dosagem , Leucovorina/farmacocinética , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica , Pró-Fármacos , Fatores Sexuais , Tegafur/administração & dosagem , Tegafur/farmacocinética , Equivalência Terapêutica , Uracila/administração & dosagem , Uracila/farmacocinética
15.
J Vasc Access ; 18(5): 390-395, 2017 Sep 11.
Artigo em Inglês | MEDLINE | ID: mdl-28731491

RESUMO

INTRODUCTION: Most cancer patients require a totally implanted central venous catheter (TIVAD) for their treatment. In a previous study, we developed and validated a questionnaire dubbed QASICC (Questionnaire for Acceptance of, and Satisfaction with, Implanted Central Venous Catheter) assessing patient satisfaction with, and acceptance of, their TIVAD. In the present study, we conducted a large, prospective, multicenter study in cancer patients aimed to analyze factors that could influence patients' acceptance of, and satisfaction with, their device. METHODS: The QASICC is composed of 22 items assessing 5 dimensions. The construction and validation of the questionnaire was achieved using validated methodology to determine its psychometric characteristics. The questionnaire was submitted to 720 patients in 11 French institutions; 567 answers were analyzed. RESULTS: Younger patients had the most difficulties in coping with their TIVAD, especially regarding daily activities and their body image and private life compared to older patients. Sex was significantly related to patient satisfaction, with worse scores in women. Breast tumor location was also correlated with low TIVAD acceptance. TIVAD on the right side also positively influenced satisfaction and acceptance of the device. CONCLUSIONS: QASICC has proved to be efficient, and to detect known issues regarding daily activities and body image. As our population was mostly composed of women with breast cancer, our results reflect specific aspects of this population. The TIVAD remains generally well-accepted and our questionnaire should help health-care workers to better address the specific needs of their patients based on the answers provided.


Assuntos
Antineoplásicos/administração & dosagem , Cateterismo Venoso Central/instrumentação , Cateteres de Demora , Cateteres Venosos Centrais , Neoplasias/tratamento farmacológico , Aceitação pelo Paciente de Cuidados de Saúde , Satisfação do Paciente , Administração Intravenosa , Adulto , Idoso , Feminino , França , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias/diagnóstico , Neoplasias/psicologia , Estudos Prospectivos , Psicometria , Qualidade de Vida , Inquéritos e Questionários , Adulto Jovem
16.
PLoS One ; 12(5): e0175998, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28481884

RESUMO

BACKGROUND: Deficiency in dihydropyrimidine dehydrogenase (DPD) enzyme is the main cause of severe and lethal fluoropyrimidine-related toxicity. Various approaches have been developed for DPD-deficiency screening, including DPYD genotyping and phenotyping. The goal of this prospective observational study was to perform exhaustive exome DPYD sequencing and to examine relationships between DPYD variants and toxicity in advanced breast cancer patients receiving capecitabine. METHODS: Two-hundred forty-three patients were analysed (88.5% capecitabine monotherapy). Grade 3 and grade 4 capecitabine-related digestive and/or neurologic and/or hemato-toxicities were observed in 10.3% and 2.1% of patients, respectively. DPYD exome, along with flanking intronic regions 3'UTR and 5'UTR, were sequenced on MiSeq Illumina. DPD phenotype was assessed by pre-treatment plasma uracil (U) and dihydrouracil (UH2) measurement. RESULTS: Among the 48 SNPs identified, 19 were located in coding regions, including 3 novel variations, each observed in a single patient (among which, F100L and A26T, both pathogenic in silico). Combined analysis of deleterious variants *2A, I560S (*13) and D949V showed significant association with grade 3-4 toxicity (sensitivity 16.7%, positive predictive value (PPV) 71.4%, relative risk (RR) 6.7, p<0.001) but not with grade 4 toxicity. Considering additional deleterious coding variants D342G, S492L, R592W and F100L increased the sensitivity to 26.7% for grade 3-4 toxicity (PPV 72.7%, RR 7.6, p<0.001), and was significantly associated with grade 4 toxicity (sensitivity 60%, PPV 27.3%, RR 31.4, p = 0.001), suggesting the clinical relevance of extended targeted DPYD genotyping. As compared to extended genotype, combining genotyping (7 variants) and phenotyping (U>16 ng/ml) did not substantially increase the sensitivity, while impairing PPV and RR. CONCLUSIONS: Exploring an extended set of deleterious DPYD variants improves the performance of DPYD genotyping for predicting both grade 3-4 and grade 4 toxicities (digestive and/or neurologic and/or hematotoxicities) related to capecitabine, as compared to conventional genotyping restricted to consensual variants *2A, *13 and D949V.


Assuntos
Antimetabólitos Antineoplásicos/efeitos adversos , Capecitabina/efeitos adversos , Di-Hidrouracila Desidrogenase (NADP)/genética , Adulto , Idoso , Antimetabólitos Antineoplásicos/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Capecitabina/uso terapêutico , Feminino , Genótipo , Humanos , Pessoa de Meia-Idade , Polimorfismo de Nucleotídeo Único , Estudos Prospectivos
17.
Eur J Cancer ; 67: 73-82, 2016 11.
Artigo em Inglês | MEDLINE | ID: mdl-27616438

RESUMO

AIM: Providing head and neck cancer patients with adequate information is essential to their confidence and satisfaction regarding medical care. The aims of this study were to evaluate patient perceptions of the information received, the predictive factors of such perceptions and their potential correlation with patient quality of life (QoL). METHODS: We conducted a prospective multicentric study using the European Organization for Research and Treatment of Cancer (EORTC) QLQ-INFO25 and QLQ-C30 questionnaires before and after surgery. RESULTS: This study enrolled 200 patients, 149 men and 51 women, mean age 63.5 ± 10.3 years. Before and after treatment, global QLQ-INFO25 scores were 39.3 and 42.5, respectively, whereas satisfaction with the information received scores were 69.9 and 58.1, respectively. Regarding EORTC QLQ-INFO25 scores, between the pre- and post-treatment periods, we observed a significant increase in three scales/items (information about other services, information about different places of care and information about things you can do to help yourself) and a significant decrease in two scales/items (satisfaction with the information received and overall the information has been helpful). Before and after treatment, global QoL scores were 62.7 and 61.0, respectively. Overall, we found low correlations between QLQ-INFO25 and QLQ-C30 scores. Patient age and education level, centre of care, tumour site and treatment characteristics had a significant impact on QLQ-INFO25 scores. CONCLUSION: Perceived information was satisfactory in the perioperative period for head and neck cancer patients. Several demographic and clinical factors were identified as significant predictors of QLQ-INFO25 scores.


Assuntos
Carcinoma de Células Escamosas/cirurgia , Neoplasias de Cabeça e Pescoço/cirurgia , Educação de Pacientes como Assunto/métodos , Qualidade de Vida , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Procedimentos Cirúrgicos Otorrinolaringológicos , Satisfação do Paciente , Estudos Prospectivos , Carcinoma de Células Escamosas de Cabeça e Pescoço , Inquéritos e Questionários
18.
Bull Cancer ; 102(4): 301-15, 2015 Apr.
Artigo em Francês | MEDLINE | ID: mdl-25799876

RESUMO

OBJECTIVE: Most cancer patients require a totally-implanted central venous access device (TIVAD) for their treatment. This was a prospective, multicenter, open study to: (i) develop and validate a French-language questionnaire dubbed QASICC (Questionnaire for Acceptance of and Satisfaction with Implanted Central Venous Catheter) assessing patient's satisfaction with and acceptance of their TIVAD; (ii) develop a mean score of patient's acceptance and satisfaction; (iii) look for correlation between QASICC score and TIVAD patient/tumor pathology/device characteristics. METHODS: From 2011 November to 2012 December, the first version of the QASICC questionnaire that included 27 questions assessing seven dimensions was re-tested among 998 cancer patients in eleven French cancer hospitals (eight cancer research institutes and three university/general hospitals). The goal was: (i) to reduce the questionnaire item and dimension number (pertinency, saturation effect, item correlation); (ii) to assess its psychometric properties, demonstrate its validity and independency compared to (EORTC) QLQC30; (iii) to correlate clinical and pathological patient's/tumor's/TIVAD's parameters with the QASICC questionnaire score (the higher the overall score, the greater the acceptance and satisfaction). The questionnaire was administered to the patient 30 days (±15 days) after TIVAD's implantation. RESULTS: Among 998 questionnaires given to cancer patients, 658 were analyzed and 464 were fully assessed as there was no missing data. Time to fill-in the questionnaire was five minutes in 90% patients. Final QASICC tool included twenty-two questions assessing four homogeneous dimensions (65%

Assuntos
Cateterismo Venoso Central/psicologia , Cateteres Venosos Centrais , Satisfação do Paciente , Inquéritos e Questionários , Atividades Cotidianas , Feminino , França , Humanos , Masculino , Dor/psicologia , Privacidade
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