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1.
Int J Mol Sci ; 23(21)2022 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-36362115

RESUMO

Prostate cancer (PCa) is one of the most commonly diagnosed types of malignancy and is the second leading cause of cancer-related death in men in developed countries. Cyclin dependent kinase 2 associate protein 1(CDK2AP1) is an epigenetic and cell cycle regulator gene which has been downregulated in several malignancies, but its involvement in PCa has not yet been investigated in a clinical setting. We assessed the prognostic value of CDK2AP1 expression in a cohort of men diagnosed with PCa (n = 275) treated non-surgically by transurethral resection of the prostate (TURP) and studied the relationship between CDK2AP1 expression to various PCa molecular subtypes (ERG, PTEN, p53 and AR) and evaluated the association with clinical outcome. Further, we used bioinformatic tools to analyze the available TCGA PRAD transcriptomic data to explore the underlying mechanism. Our data confirmed increased expression of CDK2AP1 with higher Gleason Grade Group (GG) and metastatic PCa (p <0.0001). High CDK2AP1 expression was associated with worse overall survival (OS) (HR: 1.62, CI: 1.19−2.21, p = 0.002) and cause-specific survival (CSS) (HR: 2.012, CI 1.29−3.13, p = 0.002) using univariate analysis. When compared to each sub-molecular type. High CDK2AP1/PTEN-loss, abnormal AR or p53 expression showed even worse association to poorer OS and CCS and remained significant when adjusted for GG. Our data indicates that CDK2AP1 directly binds to p53 using the Co-Immunoprecipitation (Co-IP) technique, which was validated using molecular docking tools. This suggests that these two proteins have a significant association through several binding features and correlates with our observed clinical data. In conclusion, our results indicated that the CDK2AP1 overexpression is associate with worse OS and CSS when combined with certain PCa molecular subtypes; interaction between p53 stands out as the most prominent candidate which directly interacts with CDK2AP1.


Assuntos
Neoplasias da Próstata , Ressecção Transuretral da Próstata , Humanos , Masculino , Quinase 2 Dependente de Ciclina/genética , Quinase 2 Dependente de Ciclina/metabolismo , Proteínas Inibidoras de Quinase Dependente de Ciclina/metabolismo , Simulação de Acoplamento Molecular , Neoplasias da Próstata/metabolismo , Proteína Supressora de Tumor p53/genética
2.
Support Care Cancer ; 30(10): 8339-8347, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35869370

RESUMO

PURPOSE: Palliative radiotherapy (PRT) in advanced cancer improves symptom control and quality of life. PRT consultations take place in various clinical settings, including through dedicated rapid access clinics. We examined holistic assessment and PRT delivery by consultation setting. METHODS: We analyzed patients with breast cancer who died (01/04/2013-31/03/2014), after at least one lifetime PRT consultation. Data abstracted included Karnofsky Performance Status (KPS), Edmonton Symptom Assessment System Revised (ESAS-r) ratings, and PRT timelines. Descriptive statistics, t tests of proportions, independent t tests, and chi-square tests were calculated. RESULTS: One hundred thirty patients were assessed for PRT over 224 consults, 28/224 (12.5%) in the rapid access clinic. In non-rapid access versus rapid access visits, KPS was documented in 30.1% versus 89.3%, and medication history in 53.6% versus 96.4%, respectively (both p < 0.0001). Baseline ESAS-r scores were available for 67.9% of rapid access visits, versus no non-rapid access visit. Rapid access consults had a higher proportion of subsequent supportive care referrals (46.4% versus 8.2%; p < 0.0001). Same day PRT start occurred in 37% of rapid access versus 23.4% of non-rapid access visits (p = 0.13). CONCLUSIONS: Assessment for PRT by a dedicated multidisciplinary team provides a comprehensive picture of patient needs and streamlines PRT delivery, essential to personalizing supportive care.


Assuntos
Neoplasias da Mama , Neoplasias , Neoplasias da Mama/radioterapia , Feminino , Humanos , Avaliação de Estado de Karnofsky , Neoplasias/radioterapia , Cuidados Paliativos , Qualidade de Vida , Encaminhamento e Consulta
3.
Semin Oncol Nurs ; 38(2): 151279, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35491333

RESUMO

OBJECTIVES: We provide a review of external beam radiotherapy for pain associated with bone metastases, to summarize evidence associated with different radiotherapy fraction prescriptions, and outline the oncology nursing roles in a rapid-access palliative radiotherapy clinic. Additionally, we describe the clinical capacity contributed by a nurse practitioner working at full clinical scope. DATA SOURCES: Data derived from literary databases (PubMed, CINAHL); an ethics-approved, prospective data set; and clinical expertise. CONCLUSION: Nursing provides essential contributions in the treatment and holistic symptom management in patients undergoing radiation therapy for painful bone metastases. IMPLICATIONS FOR NURSING PRACTICE: The roles of nursing in radiation oncology have been poorly elucidated within the existing literature. This evaluation provided valuable insights into the contribution of oncology nursing roles in providing timely access for individuals with painful metastasis.


Assuntos
Neoplasias Ósseas , Radioterapia (Especialidade) , Neoplasias Ósseas/radioterapia , Neoplasias Ósseas/secundário , Humanos , Enfermagem Oncológica , Dor/etiologia , Dor/radioterapia , Cuidados Paliativos , Estudos Prospectivos
4.
BMJ Open ; 12(4): e053165, 2022 04 04.
Artigo em Inglês | MEDLINE | ID: mdl-35379618

RESUMO

INTRODUCTION: Breast cancer-related lymphoedema (BCRL) is a chronic swelling in the arm on the side of the breast cancer surgery, affecting one in five women. Recent studies in BCRL have demonstrated that resistance exercise can improve symptoms and quality of life without worsening lymphoedema. No studies have explored whether combining the principles of progressive resistance exercise training with therapeutic strategies of compression therapy and the decongestive lymphatic exercise sequence are beneficial in reducing arm lymphoedema volume. The aim of this three-arm, provincial randomised controlled trial is to determine the efficacy of a 12-week decongestive progressive resistance exercise (DRE) programme in combination with the one of two types of compression garments compared with standard care. METHODS AND ANALYSIS: Sixty women with BCRL will be recruited and randomly assigned to one of the following three groups: (1) Standard care, (2) DRE with use of a daytime compression garment during exercise and (3) DRE with use of an adjustable compression wrap during exercise. The primary outcome is the percentage reduction in arm lymphoedema volume. Secondary outcomes include bioimpedance analysis, muscular strength, shoulder range of motion, physical activity level and health-related quality of life. Exploratory outcomes include evaluating changes in arm tissue composition using MRI and examining outcomes between the two DRE experimental groups. The primary analysis will compare changes between the groups from baseline to week 12 reflecting the end of the randomised control trial period. ETHICS AND DISSEMINATION: The trial has received ethics approval from the Health Research Ethics Board of Alberta: Cancer Committee. The study results will be disseminated through scientific peer-reviewed publications, and presented at national and international conferences, and other media portals. The programme protocol will be shared with healthcare professionals and patient groups through clinical workshops and webinars. TRIAL REGISTRATION NUMBER: NCT05022823. PROTOCOL VERSION: 12 November 2021. ISSUE DATE: 26 April 2021.


Assuntos
Neoplasias da Mama , Linfedema , Treinamento Resistido , Neoplasias da Mama/complicações , Neoplasias da Mama/cirurgia , Bandagens Compressivas , Exercício Físico , Feminino , Humanos , Linfedema/complicações , Linfedema/terapia , Qualidade de Vida , Ensaios Clínicos Controlados Aleatórios como Assunto
5.
Nutr Cancer ; 74(5): 1712-1723, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34346233

RESUMO

Fortified snacks can increase nutrient intake among patients with cancer. The aim of this study was to identify snack foods preferred as potential vehicles for fortification and how experienced symptoms influence preferences.A study-specific survey among 150 patients identified snack foods for fortification, influence of symptom presence, desired nutrients and characteristics of a fortified snack, and perception of oral nutritional supplements.Patients had mainly breast, gastrointestinal, lung, and colorectal tumors. Soup, yogurt, cheese, fruit juice, egg products, and protein bars were identified as suitable fortified snacks by >60% of subjects. Desired characteristics for snacks included nutritious, flavorful, convenient, ready to eat, easy to chew, and easy to swallow. Vitamins, minerals, and protein were the nutrients of interest. Three clusters of symptoms were identified that predicted patients' desired characteristics of fortified snacks and satisfaction with food-related life. Patients in High and Moderate symptom clusters were more likely to have reduced food intake and higher consumption of oral nutritional supplements.Preferences for fortified snacks and their characteristics are influenced by symptom presence. The results of this study provide insight to guide the development of fortified snacks for patients with cancer.


Assuntos
Neoplasias , Lanches , Ingestão de Alimentos , Preferências Alimentares , Alimentos Fortificados , Humanos , Vitaminas
6.
Leuk Res ; 111: 106674, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34333277

RESUMO

While second generation tyrosine kinase inhibitors (2GTKIs) are highly effective therapies for chronic myeloid leukemia (CML), a significant minority of patients who initiate a 2GTKI will require a switch to an alternative TKI. The long-term outcomes of those who require a change in therapy after front-line 2GTKI therapy are largely undescribed. Here we describe the clinical outcomes associated with switch to an alternative TKI after first-line therapy with a 2GTKI. Of 232 patients who initiated a 2GTKI during the study period, 76 (33 %) switched to an alternative TKI. Reasons for switching included intolerance (79 %) and resistance (21 %). Among the 60 patients who switched due to intolerance, 53 (88 %) were able to achieve or maintain a major molecular response (MMR) with 5-year progression-free survival (PFS) 90.5 % (95 % CI 90.4-90.6 %). Amongst the 16 patients who switched due to resistance, 8 patients (50 %) were able to achieve MMR with 5-year PFS 80.4 % (95 % CI 80.2-80.6 %). Most patients who switched due to intolerance remained on their second-line TKI. Approximately 25 % of patients who initiate first-line 2GTKI in a real world setting will ultimately switch to an alternate TKI due to intolerance. Patients who switch for intolerance continue to enjoy excellent clinical outcomes.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/farmacologia , Resistencia a Medicamentos Antineoplásicos/efeitos dos fármacos , Substituição de Medicamentos/estatística & dados numéricos , Leucemia Mielogênica Crônica BCR-ABL Positiva/tratamento farmacológico , Inibidores de Proteínas Quinases/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Dasatinibe/administração & dosagem , Feminino , Seguimentos , Humanos , Leucemia Mielogênica Crônica BCR-ABL Positiva/patologia , Masculino , Pessoa de Meia-Idade , Prognóstico , Pirimidinas/administração & dosagem , Estudos Retrospectivos , Taxa de Sobrevida , Adulto Jovem
7.
Am J Clin Oncol ; 44(9): 487-494, 2021 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-34269694

RESUMO

AIM: Capecitabine (Cape) is routinely used for the neoadjuvant chemoradiation treatment (NACRT) of locally advanced rectal cancers (LARCs). Previous reports have suggested that the concomitant use of proton pump inhibitors (PPIs) may affect the efficacy of Cape, although the true effect of PPIs when used with Cape as a radiosensitizer for neoadjuvant radiation is unclear. The aim of our study was to evaluate the impact of concurrent PPI use along with fluorouracil (FU) and Cape based NACRT in terms of pathologic and oncological outcomes, in patients with LARC. METHODS: LARC patients treated at our center with NACRT from 2010 to 2016 were identified. Postoperative pathology and follow-up outcomes were examined for any differences with relation to the use of PPIs concurrently with FU and Cape based NACRT and adjuvant chemotherapy regimens. RESULTS: Three hundred four and 204 patients received treatment with FU and Cape based NACRT. No difference in pathologic complete response rate was noted between the 2 arms with the concurrent use of PPIs (25.8% and 25%, respectively, P=0.633); or with and without the use of PPIs in the Cape-NACRT arm specifically (20% and 20.7%, P=0.945). At a median follow-up of 5 years, no statistical difference in local or distant control was noted in the Cape-NACRT patients, with and without concomitant PPI use (P=0.411 and 0.264, respectively).Multivariate analysis showed no association of PPI use and NACRT with Cape, in terms of local control (hazard ratio=0.001, P=0.988) or overall survival (hazard ratio=1.179, confidence interval=0.249-5.579, P=0.835). CONCLUSIONS: Our study revealed that there was no adverse pathologic or oncological outcome with the concurrent use of PPIs along with Cape-NACRT in the treatment of LARC. We report that it may be safe to use PPIs if essential, in this clinical setting, although it would be wise to exercise caution.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Quimiorradioterapia/métodos , Inibidores da Bomba de Prótons/uso terapêutico , Neoplasias Retais/terapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Capecitabina/administração & dosagem , Quimiorradioterapia/efeitos adversos , Feminino , Fluoruracila/administração & dosagem , Humanos , Masculino , Pessoa de Meia-Idade , Terapia Neoadjuvante/métodos , Recidiva Local de Neoplasia/patologia , Inibidores da Bomba de Prótons/administração & dosagem , Neoplasias Retais/mortalidade , Neoplasias Retais/patologia , Estudos Retrospectivos , Resultado do Tratamento
8.
BMJ Open ; 9(9): e030502, 2019 09 17.
Artigo em Inglês | MEDLINE | ID: mdl-31530611

RESUMO

INTRODUCTION: Neoadjuvant chemotherapy for breast cancer treatment is prescribed to facilitate surgery and provide confirmation of drug-sensitive disease, and the achievement of pathological complete response (pCR) predicts improved long-term outcomes. Docosahexaenoic acid (DHA) has been shown to reduce tumour growth in preclinical models when combined with chemotherapy and is known to beneficially modulate systemic immune function. The purpose of this trial is to investigate the benefit of DHA supplementation in combination with neoadjuvant chemotherapy in patients with breast cancer. METHODS AND ANALYSIS: This is a double-blind, phase II, randomised controlled trial of 52 women prescribed neoadjuvant chemotherapy to test if DHA supplementation enhances chemotherapy efficacy. The DHA supplementation group will take 4.4 g/day DHA orally, and the placebo group will take an equal fat supplement of vegetable oil. The primary outcome will be change in Ki67 labelling index from prechemotherapy core needle biopsy to definitive surgical specimen. The secondary endpoints include assessment of (1) DHA plasma phospholipid content; (2) systemic immune cell types, plasma cytokines and inflammatory markers; (3) tumour markers for apoptosis and tumour infiltrating lymphocytes; (4) rate of pCR in breast and in axillary nodes; (5) frequency of grade 3 and 4 chemotherapy-associated toxicities; and (6) patient-perceived quality of life. The trial has 81% power to detect a significant between-group difference in Ki67 index with a two-sided t-test of less than 0.0497, and accounts for 10% dropout rate. ETHICS AND DISSEMINATION: This study has full approval from the Health Research Ethics Board of Alberta - Cancer Committee (Protocol #: HREBA.CC-18-0381). We expect to present the findings of this study to the scientific community in peer-reviewed journals and at conferences. The results of this study will provide evidence for supplementing with DHA during neoadjuvant chemotherapy treatment for breast cancer. TRIAL REGISTRATION NUMBER: NCT03831178.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Ácidos Docosa-Hexaenoicos/administração & dosagem , Terapia Neoadjuvante/métodos , Alberta , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Biomarcadores Tumorais/análise , Neoplasias da Mama/sangue , Neoplasias da Mama/patologia , Ensaios Clínicos Fase II como Assunto , Citocinas/sangue , Suplementos Nutricionais , Ácidos Docosa-Hexaenoicos/sangue , Método Duplo-Cego , Feminino , Humanos , Antígeno Ki-67/metabolismo , Linfonodos/patologia , Qualidade de Vida , Ensaios Clínicos Controlados Aleatórios como Assunto , Resultado do Tratamento
9.
Clin Colorectal Cancer ; 18(1): 72-79, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30551953

RESUMO

BACKGROUND: First-line adjuvant chemotherapy options for early-stage colorectal cancer (CRC) include CapeOx (capecitabine, intravenous oxaliplatin) and FOLFOX (intravenous 5-fluorouracil, leucovorin, oxaliplatin). Capecitabine is an oral prodrug analog of 5-fluorouracil, and recent studies have suggested that proton pump inhibitors (PPIs) may detrimentally affect capecitabine efficacy. Conversely, some literature suggests that PPIs may negatively affect CRC itself. To gain insight into the nature of PPIs' effect on capecitabine and CRC, we investigated their effects on effectiveness of CapeOx versus FOLFOX chemotherapy. PATIENTS AND METHODS: We conducted a retrospective chart review of 389 patients with stage II-III CRC who received adjuvant CapeOx or FOLFOX from 2004 to 2013. Information regarding PPI receipt, chemotherapy, and patient outcomes from medical records was analyzed. RESULTS: Three-year recurrence-free survival was significantly lower in CapeOx-treated PPI recipients than non-PPI recipients (69.5 vs. 82.6%; P = .029). Unadjusted analysis showed that CapeOx-treated PPI recipients were twice as likely to experience cancer recurrence or death as CapeOx-treated non-PPI recipients (hazard ratio = 2.03; 95% confidence interval, 1.06-3.88; P = .033). FOLFOX-treated PPI recipients had a non-statistically significant difference in 3-year recurrence-free survival versus non-PPI recipients (82.9 vs. 61.7%; P = .066) and a non-statistically significant difference in recurrence/death (hazard ratio = 0.51; 95% confidence interval, 0.25-1.06; P = .071). No significant differences were seen in overall survival between groups. CONCLUSION: Our results suggest PPIs negatively affected recurrence-free survival in CapeOx-treated CRC patients and yielded no significant effects among FOLFOX-treated patients, potentially implicating a pharmacokinetic interaction between PPIs and capecitabine. No overall survival effects were seen. Given PPIs' widespread use, further studies are required to corroborate our findings.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Colorretais/tratamento farmacológico , Interações Medicamentosas , Recidiva Local de Neoplasia/tratamento farmacológico , Inibidores da Bomba de Prótons/uso terapêutico , Capecitabina/administração & dosagem , Neoplasias Colorretais/patologia , Quimioterapia Combinada , Feminino , Fluoruracila/administração & dosagem , Seguimentos , Humanos , Leucovorina/administração & dosagem , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/patologia , Oxaliplatina/administração & dosagem , Prognóstico , Estudos Retrospectivos , Taxa de Sobrevida
10.
BMJ Support Palliat Care ; 9(3): 291-299, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26847033

RESUMO

OBJECTIVE: The objective of this study was to describe the clinical characteristics of patient initial presentations, and to explore associations between patients' clinical characteristics at initial presentation and number of encounters (single vs multiple) to an integrated palliative care programme. METHODS: This was a retrospective study of a decedent cohort of 2922 patient initial presentations to the Edmonton Zone Palliative Care Program (EZPCP). Data included age, gender, setting of encounter, diagnosis, Edmonton Symptom Assessment System, CAGE, Mini-Mental Status Examination, Palliative Performance Status, Edmonton Classification System for Cancer Pain and time to death. RESULTS: On initial presentation to the EZPCP, the mean age was 73 (SD 14 years), with 1358 (46%) being female, and the majority having a cancer diagnosis (n=2376, 81%), the most common of which was gastrointestinal primary (n=681, 29%). In univariate analyses, patients with younger age (<60), higher palliative performance status (>40%), a malignant diagnosis, gastrointestinal primary or unimpaired cognition at initial presentation were significantly associated with multiple encounters with an integrated palliative care programme (p<0.05). In a multivariate regression analysis, a malignant diagnosis, longer survival, higher performance status and initial entry through acute care sites were independently associated with multiple encounters in the programme (p<0.001). CONCLUSIONS: Larger prospective studies are warranted to further elucidate the complex relationships between patient clinical characteristics, initial presentations and subsequent encounters to an integrated palliative care programme.


Assuntos
Dor do Câncer/terapia , Prestação Integrada de Cuidados de Saúde/estatística & dados numéricos , Cuidados Paliativos/estatística & dados numéricos , Avaliação de Programas e Projetos de Saúde/estatística & dados numéricos , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
11.
Nutr Cancer ; 70(3): 474-482, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-29533097

RESUMO

This study assessed dietary and micronutrient intakes of head and neck cancer (HNC) patients at key points in the disease trajectory and evaluated the contribution of oral nutritional supplements (ONS) to micronutrient intake. HNC patients (n = 114) completed a three-day dietary record and a tool to assess Nutrition Impact Scores (NIS) at baseline, post-treatment, and follow-up. Foods were classified into food categories. Micronutrient, protein, and energy intakes were compared to European Society for Parenteral and Enteral Nutrition guidelines for cancer patients. The majority of patients did not meet recommended dietary intakes for vitamins D, E, C, folate, and magnesium at any study time point. Relative to baseline, the proportion of calories from milk, soup, and ONS significantly increased at post-treatment, while grain, meat, potato, baked dessert, and oil and sugar decreased (P < 0.03). At all study time points, patients categorized as high ONS consumers (>15% of total daily calories from ONS) had higher intakes of micronutrients (P < 0.003). They also had a higher NIS (P = 0.006) and experienced greater weight loss (P < 0.04) during the study, despite having similar energy intake to patients consuming <15% kcal from ONS. Fortification of usually consumed foods to improve micronutrient intake among cancer patients should be evaluated.


Assuntos
Alimentos Fortificados , Neoplasias de Cabeça e Pescoço/terapia , Micronutrientes/administração & dosagem , Apoio Nutricional/métodos , Administração Oral , Adulto , Idoso , Idoso de 80 Anos ou mais , Peso Corporal , Estudos de Coortes , Registros de Dieta , Suplementos Nutricionais , Ingestão de Energia , Feminino , Neoplasias de Cabeça e Pescoço/dietoterapia , Humanos , Masculino , Pessoa de Meia-Idade , Estado Nutricional
12.
Can J Hosp Pharm ; 70(3): 179-187, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28680171

RESUMO

BACKGROUND: Thiamine (vitamin B1) is an essential cofactor responsible for the breakdown of glucose, and its deficiency is associated with Wernicke encephalopathy (WE). There is a lack of evidence from systematic studies on the optimal dosing of thiamine for WE. Objectives: The primary objective was to describe the prescribing patterns for IV thiamine in adult patients admitted to a large teaching hospital. The secondary objective was to evaluate the clinical resolution of WE symptoms (confusion, ataxia, and/or ocular motor abnormalities) in relation to the dose of IV thiamine prescribed. METHODS: A retrospective design was used to review data for adult patients admitted to an internal medicine service from June 1, 2014, to June 30, 2015. All patients included in the study received IV thiamine: low-dose therapy was defined as 100 mg IV daily and high-dose therapy was defined as dosage greater than 100 mg IV daily. RESULTS: A total of 141 patients were included; low-dose thiamine was prescribed for 115 (81.6%) and high-dose thiamine for 26 (18.4%). Patients for whom high-dose thiamine was prescribed were more likely to be those in whom a diagnosis of WE was being considered (12/26 [46.2%] versus 5/115 [4.3%], p < 0.001). Of the total 219 IV thiamine doses ordered, 180 (82.2%) were for 100 mg, and 143 (65.3%) were prescribed for once-daily administration. There was no statistically significant difference in the time to resolution of WE symptoms for patients receiving high-dose versus low-dose thiamine. CONCLUSIONS: A wide variety of thiamine prescribing patterns were noted. This study did not show a difference in time to resolution of WE symptoms in relation to the dose of IV thiamine. Additional large-scale studies are required to determine the optimal dosing of thiamine for WE.


CONTEXTE: La thiamine (vitamine B1) est un cofacteur essentiel responsable du métabolisme du glucose. Une carence en thiamine est associée à l'encéphalopathie de Wernicke (EW). Or, on observe une absence de données probantes provenant d'analyses systématiques portant sur la posologie optimale de thiamine dans le traitement de l'EW. OBJECTIFS: L'objectif principal était de décrire les habitudes de prescription de thiamine à administrer par voie intraveineuse chez les patients adultes admis dans un important hôpital universitaire. L'objectif secondaire était d'évaluer la disparition clinique des symptômes de l'EW (confusion, ataxie ou troubles moteurs oculaires) en fonction de la dose prescrite de thiamine à administrer par voie intraveineuse. MÉTHODES: Un plan d'étude rétrospectif a été utilisé pour étudier les données concernant les patients adultes admis à un service de médecine interne entre le 1er juin 2014 et le 30 juin 2015. Tous les patients à l'étude ont reçu de la thiamine par voie intraveineuse : le traitement à faible dose était de 100 mg par jour et le traitement à dose élevée excédait 100 mg par jour. RÉSULTATS: Au total, 141 patients ont été admis à l'étude; l'on a prescrit une faible dose de thiamine à 115 (81,6 %) d'entre eux et une dose élevée aux 26 (18,4 %) autres. Les patients qui se sont vus prescrire une dose élevée de thiamine étaient vraisemblablement ceux pour qui l'on envisageait un diagnostic d'EW (12/26 [46,2 %] contre 5/115 [4,3 %], p < 0,001). Pour l'ensemble des 219 doses prescrites de thiamine à administrer par voie intraveineuse, 180 (82,2 %) étaient de 100 mg et 143 (65,3 %) devaient être injectées à une fréquence uniquotidienne. On n'a relevé aucune différence statistiquement significative quant au temps de disparition des symptômes de l'EW entre les patients ayant reçu une dose élevée de thiamine et ceux en ayant reçu une faible dose. CONCLUSIONS: On a noté une grande variété d'habitudes de prescription de la thiamine. La présente étude n'a pas montré que la dose de thiamine administrée par voie intraveineuse changeait le temps nécessaire à la disparition des symptômes de l'EW. Il est nécessaire de mener de plus amples études à grande échelle afin de déterminer quelle est la posologie optimale de thiamine dans le traitement de l'EW.

13.
Eur J Haematol ; 97(5): 471-478, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27028202

RESUMO

We conducted a retrospective study assessing FLAG (fludarabine, cytarabine, and granulocyte colony-stimulating factor) as first-line treatment in 56 newly diagnosed acute myeloid leukemia patients considered ineligible for anthracycline-based treatment due to advanced age, significant comorbidities, or pre-existing cardiac disease. The median age was 69 (21-80); 46% received FLAG for pre-existing cardiac disease and others due to age (32%), non-cardiac comorbidities (20%), or previous anthracycline exposure (2%). The induction mortality was 16% and, among evaluable patients, 48% achieved a complete remission after the first induction course with an additional patient achieving a remission after a second course for a total complete remission rate of 50%. Four patients proceeded to an allogeneic stem cell transplant including two with pre-existing cardiac disease. Among non-transplanted patients, the relapse rate (RR) was 47%. When censored at time of stem cell transplant, the median relapse-free survival was 14.7 months. The median overall survival was 9.3 months with 1- and 2-yr survivals of 44% and 22%, respectively. There was no difference in clinical outcomes between patients treated with FLAG for cardiac reasons vs. other reasons. In conclusion, FLAG is a useful alternative to anthracycline-based induction for Acute myeloid leukemia in those with significant comorbidities including pre-existing cardiac disease.


Assuntos
Antraciclinas/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Cardiopatias/complicações , Leucemia Mieloide Aguda/complicações , Leucemia Mieloide Aguda/tratamento farmacológico , Vidarabina/análogos & derivados , Adulto , Idoso , Idoso de 80 Anos ou mais , Antraciclinas/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Terapia Combinada , Comorbidade , Citarabina/efeitos adversos , Citarabina/uso terapêutico , Feminino , Fator Estimulador de Colônias de Granulócitos/efeitos adversos , Fator Estimulador de Colônias de Granulócitos/uso terapêutico , Humanos , Leucemia Mieloide Aguda/mortalidade , Masculino , Pessoa de Meia-Idade , Segunda Neoplasia Primária , Estudos Retrospectivos , Resultado do Tratamento , Vidarabina/efeitos adversos , Vidarabina/uso terapêutico , Adulto Jovem
14.
Clin Breast Cancer ; 15(3): 181-90.e1-4, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25619686

RESUMO

BACKGROUND: The efficacy of aloe extract in reducing radiation-induced skin injury is controversial. The purpose of the present 3-arm randomized trial was to test the efficacy of quality-tested aloe extract in reducing the severity of radiation-induced skin injury and, secondarily, to examine the effect of a moist cream versus a dry powder skin care regimen. MATERIALS AND METHODS: A total of 248 patients with breast cancer were randomized to powder, aloe cream, or placebo cream. Acute skin toxicity was scored weekly and after treatment at weeks 1, 2, and 4 using a modified 10-point Catterall scale. The patients scored their symptom severity using a 6-point Likert scale and kept an acute phase diary. RESULTS: The aloe formulation did not reduce acute skin toxicity or symptom severity. Patients with a greater body mass index were more likely to develop acute skin toxicity. A similar pattern of increased skin reaction toxicity occurred with both study creams compared with the dry powder regimen. CONCLUSION: No evidence was found to support prophylactic application of quality aloe extract or cream to improve the symptoms or reduce the skin reaction severity. Our results support a dry skin care regimen of powder during radiation therapy.


Assuntos
Aloe , Neoplasias da Mama/radioterapia , Fitoterapia , Extratos Vegetais/administração & dosagem , Pós/administração & dosagem , Radiodermite/prevenção & controle , Administração Tópica , Adulto , Método Duplo-Cego , Feminino , Humanos , Pessoa de Meia-Idade , Radiodermite/diagnóstico , Creme para a Pele/administração & dosagem
15.
Clin Colorectal Cancer ; 13(3): 199-206, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25088184

RESUMO

BACKGROUND: The pattern of adjuvant chemotherapy (AC) use, toxicity profile, and survival benefit in elderly patients with colon cancer (CC) is unclear. We sought to (1) determine whether patients ≥ 65 years with stage III CC were offered single-agent or combination AC, (2) evaluate the reason for selecting single-agent versus combination AC, (3) evaluate the toxicity profile of single-agent and combination AC in the elderly, and (4) determine whether a survival benefit exists for elderly patients receiving combination AC. PATIENTS AND METHODS: A retrospective analysis of records of patients ≥ 65 years diagnosed with stage III CC from 2004 to 2010 was performed to identify baseline characteristics, AC protocols, toxicity, dose intensity, and survival. RESULTS: Two hundred sixty-eight patients ≥ 65 years were diagnosed and treated with AC from 2004 to 2010. Of these patients, 178 were treated with single-agent AC and 90 were treated with combination AC. The most common reasons for choosing single-agent AC were patient preference, comorbidities, and lack of drug coverage. For each year over 65 years, the odds of receiving combination over single-agent AC decreased by 22%. There were more dose delays, dose reductions, and early chemotherapy discontinuation in the combination AC group because of hematologic toxicity. The 5-year overall survival (OS) was 73% in patients who received single-agent AC compared with 84% in those who received combination AC. There was no difference in cancer-related deaths between the groups. CONCLUSION: In elderly patients treated with AC for stage III CC, single-agent AC is used more frequently than combination AC, based on age, comorbidities, and patient choice. Toxicity with combination AC in elderly patients is high. No survival benefit was seen with combination AC over single-agent AC.


Assuntos
Adenocarcinoma/tratamento farmacológico , Adenocarcinoma/patologia , Antimetabólitos Antineoplásicos/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias do Colo/tratamento farmacológico , Neoplasias do Colo/patologia , Adenocarcinoma/cirurgia , Idoso , Idoso de 80 Anos ou mais , Antimetabólitos Antineoplásicos/efeitos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Canadá , Capecitabina , Quimioterapia Adjuvante/efeitos adversos , Comportamento de Escolha , Neoplasias do Colo/cirurgia , Comorbidade , Desoxicitidina/análogos & derivados , Desoxicitidina/uso terapêutico , Intervalo Livre de Doença , Feminino , Fluoruracila/administração & dosagem , Fluoruracila/efeitos adversos , Fluoruracila/análogos & derivados , Fluoruracila/uso terapêutico , Humanos , Cobertura do Seguro , Seguro de Serviços Farmacêuticos , Leucovorina/administração & dosagem , Leucovorina/efeitos adversos , Leucovorina/uso terapêutico , Masculino , Estadiamento de Neoplasias , Compostos Organoplatínicos/administração & dosagem , Compostos Organoplatínicos/efeitos adversos , Oxaliplatina , Preferência do Paciente , Estudos Retrospectivos , Taxa de Sobrevida , Complexo Vitamínico B/uso terapêutico
16.
Clin Colorectal Cancer ; 13(3): 172-7, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24630275

RESUMO

INTRODUCTION/BACKGROUND: Adjuvant treatment of colon cancer relies on fluoropyrimidine-containing regimens as the intravenous formulation, 5-FU, or its oral prodrug, CA, combined with oxaliplatin (FOLFOX and CAPOX). There is currently no clinical trial comparing the 2 regimens; however, both are considered standard of care treatment options. MATERIALS AND METHODS: We performed a retrospective chart review comparing average relative dose intensity (ARDI), percentage of intended total dose (PITD), overall survival (OS), DFS, and toxicity profiles of these regimens. The patients (n = 176) received either modified FOLFOX6 (n = 93) or CAPOX (n = 83). RESULTS: Oxaliplatin ARDI (80.72% vs. 87.11%; P = .0033) and PITD (70.09% vs. 88.11%; P = .0013) was significantly lower in those treated with CAPOX compared with FOLFOX. CA ARDI (87.10% vs. 93.60%; P < .0001) and PITD (77.19% vs. 88.11%; P = .0006) was significantly lower than 5-FU dosing. Patients treated with CAPOX had more ≥ Grade 2 toxicities and trended toward more dose-limiting toxicities. Survival analysis demonstrated a trend toward improved OS with CAPOX (hazard ratio [HR], 0.4741; 95% confidence interval [CI], 0.1660-1.354; P = .1663) and improved DFS with CAPOX (HR, 0.4949; 95% CI, 0.2512-0.9749; P = .0420). Multivariate analysis demonstrated similar results with CAPOX being associated with a trend toward improved OS (HR, 0.396; 95% CI, 0.110-1.429; P = .1571) and DFS (HR, 0.458; 95% CI, 0.210-1.001; P = .0504). CONCLUSION: Patients receiving CAPOX had significantly lower ARDI and PITD compared with FOLFOX, but showed trends toward improved outcomes when treated with CAPOX in the adjuvant setting when compared with FOLFOX.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias do Colo/tratamento farmacológico , Neoplasias do Colo/patologia , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Capecitabina , Quimioterapia Adjuvante , Neoplasias do Colo/cirurgia , Desoxicitidina/administração & dosagem , Desoxicitidina/efeitos adversos , Desoxicitidina/análogos & derivados , Intervalo Livre de Doença , Feminino , Fluoruracila/administração & dosagem , Fluoruracila/efeitos adversos , Fluoruracila/análogos & derivados , Humanos , Leucovorina/administração & dosagem , Leucovorina/efeitos adversos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Compostos Organoplatínicos/administração & dosagem , Compostos Organoplatínicos/efeitos adversos , Oxaliplatina , Estudos Retrospectivos , Taxa de Sobrevida
17.
Int J Radiat Oncol Biol Phys ; 78(2): 527-32, 2010 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-20100640

RESUMO

PURPOSE: Patients with bone metastases may experience pain, fatigue, and decreased mobility. Multiple medications for analgesia are often required, each with attendant side effects. Although palliative-intent radiotherapy (RT) is effective in decreasing pain, additional supportive care interventions may be overlooked. Our objective was to describe the feasibility of multidisciplinary assessment of patients with symptomatic bone metastases attending a dedicated outpatient palliative RT clinic. METHODS AND MATERIALS: Consecutive patients referred for RT for painful bone metastases were screened for symptoms and needs relevant to their medications, nutritional intake, activities of daily living, and psychosocial and spiritual concerns from January 1 to December 31, 2007. Consultations by appropriate team members and resulting recommendations were collected prospectively. Patients who received RT were contacted by telephone 4 weeks later to assess symptom outcomes. RESULTS: A total of 106 clinic visits by 82 individual patients occurred. As determined by screening form responses, the clinical Pharmacist, Occupational Therapist, Registered Dietician and Social Worker were consulted to provide assessments and recommendations within the time constraints presented by 1-day palliative RT delivery. In addition to pain relief, significant improvements in tiredness, depression, anxiety, drowsiness and overall well-being were reported at 4 weeks. CONCLUSIONS: Systematic screening of this population revealed previously unmet needs, addressed in the form of custom verbal and written recommendations. Multidisciplinary assessment is associated with a high number of recommendations and decreased symptom distress. Our findings lend strong support to the routine assessment by multiple supportive care professionals for patients with advanced cancer being considered for palliative RT.


Assuntos
Neoplasias Ósseas/radioterapia , Dor/radioterapia , Cuidados Paliativos/estatística & dados numéricos , Equipe de Assistência ao Paciente/organização & administração , Atividades Cotidianas , Adulto , Idoso , Idoso de 80 Anos ou mais , Alberta , Instituições de Assistência Ambulatorial/estatística & dados numéricos , Ansiedade/terapia , Neoplasias Ósseas/psicologia , Neoplasias Ósseas/secundário , Distribuição de Qui-Quadrado , Depressão/terapia , Serviços de Dietética/estatística & dados numéricos , Fadiga/terapia , Estudos de Viabilidade , Feminino , Acessibilidade aos Serviços de Saúde/estatística & dados numéricos , Humanos , Masculino , Pessoa de Meia-Idade , Avaliação Nutricional , Terapia Ocupacional/estatística & dados numéricos , Dor/etiologia , Dor/psicologia , Cuidados Paliativos/métodos , Equipe de Assistência ao Paciente/estatística & dados numéricos , Serviço de Farmácia Hospitalar/estatística & dados numéricos , Estudos Prospectivos , Serviço Social/estatística & dados numéricos , Espiritualidade
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