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1.
Hum Reprod ; 38(7): 1332-1344, 2023 07 05.
Artigo em Inglês | MEDLINE | ID: mdl-37196325

RESUMO

STUDY QUESTION: Are patients willing to discuss the possibility of treatment being unsuccessful as part of routine care offered at clinics, and what are the factors associated with this willingness? SUMMARY ANSWER: Nine in every 10 patients are willing to discuss this possibility as part of routine care, with willingness being associated with higher perceived benefits, lower barriers, and stronger positive attitudes towards it. WHAT IS KNOWN ALREADY: Fifty-eight percent of patients who complete up to three cycles of IVF/ICSI in the UK do not achieve a live birth. Offering psychosocial care for unsuccessful fertility treatment (PCUFT), defined as assistance and guidance on the implications of treatment being unsuccessful, could reduce the psychosocial distress patients experience when it happens, and promote positive adjustment to this loss. Research shows 56% of patients are willing to plan for an unsuccessful cycle, but little is known about their willingness and preferences towards discussing the possibility of definitive unsuccessful treatment. STUDY DESIGN, SIZE, DURATION: The study was of cross-sectional design, comprising a theoretically driven and patient-centred bilingual (English, Portuguese) mixed-methods online survey. The survey was disseminated via social media (April 2021-January 2022). Eligibility criteria included being aged 18 or older, waiting to or undergoing an IVF/ICSI cycle, or having completed a cycle within the previous 6 months without achieving a pregnancy. Out of 651 people accessing the survey, 451 (69.3%) consented to participate. From these, 100 did not complete 50% of the survey questions, nine did not report on the primary outcome variable (willingness), and 342 completed the survey (completion rate 75.8%, 338 women). PARTICIPANTS/MATERIALS, SETTING, METHODS: The survey was informed by the Health Belief Model (HBM) and Theory of Planned Behaviour (TPB). Quantitative questions covered sociodemographic characteristics and treatment history. Quantitative and qualitative questions gathered data on past experiences, willingness, and preferences (with whom, what, how and when) to receive PCUFT, as well as theory-informed factors hypothesized to be associated with patients' willingness to receive it. Descriptive and inferential statistics were used on quantitative data about PCUFT experiences, willingness, and preferences, and thematic analysis was applied to textual data. Two logistic regressions were used to investigate the factors associated with patients' willingness. MAIN RESULTS AND THE ROLE OF CHANCE: Participants were, on average, 36 years old and most resided in Portugal (59.9%) and the UK (38.0%). The majority (97.1%) were in a relationship for around 10 years, and 86.3% were childless. Participants were undergoing treatment for, on average, 2 years [SD = 2.11, range: 0-12 years], with most (71.8%) having completed at least one IVF/ICSI cycle in the past, almost all (93.5%) without success. Around one-third (34.9%) reported having received PCUFT. Thematic analysis showed participants received it mainly from their consultant. The main topic discussed was patients' low prognosis, with the emphasis being put on achieving a positive outcome. Almost all participants (93.3%) would like to receive PCUFT. Reported preferences indicated that 78.6% wanted to receive it from a psychologist/psychiatrist/counsellor, mostly in case of a bad prognosis (79.4%), emotional distress (73.5%), or difficulties in accepting the possibility of treatment being unsuccessful (71.2%). The preferred time to receive PCUFT was before initiating the first cycle (73.3%), while the preferred format was in an individual (mean = 6.37, SD = 1.17; in 1-7 scale) or couple (mean = 6.34, SD = 1.24; in 1-7 scale) session. Thematic analysis showed participants would like PCUFT to provide an overview of treatment and all possible outcomes tailored to each patient's circumstances and to encompass psychosocial support, mainly focused on coping strategies to process loss and sustain hope towards the future. Willingness to receive PCUFT was associated with higher perceived benefit of building psychosocial resources and coping strategies (odds ratios (ORs) 3.40, 95% CI 1.23-9.38), lower perceived barrier of triggering negative emotions (OR 0.49, 95% CI 0.24-0.98), and stronger positive attitudes about PCUFT being beneficial and useful (OR 3.32, 95% CI 2.12-5.20). LIMITATIONS, REASONS FOR CAUTION: Self-selected sample, mainly composed of female patients who had not yet achieved their parenthood goals. The small number of participants unwilling to receive PCUFT reduced statistical power. The primary outcome variable was intentions, and research shows a moderate association between intentions and actual behaviour. WIDER IMPLICATIONS OF THE FINDINGS: Fertility clinics should provide patients with early opportunities to discuss the possibility of their treatment being unsuccessful as part of routine care. PCUFT should focus on minimizing suffering associated with grief and loss by reassuring patients they can cope with any treatment outcome, promoting coping resources, and signposting to additional support. STUDY FUNDING/COMPETING INTEREST(S): M.S.-L. holds a doctoral fellowship from the Portuguese Foundation for Science and Technology, I.P. [Fundação para a Ciência e a Tecnologia] (FCT; SFRH/BD/144429/2019). R.C. holds a post-doctoral fellowship supported by the European Social Fund (ESF) and FCT (SFRH/BPD/117597/2016). The EPIUnit, ITR and CIPsi (PSI/01662) are also financed by FCT through the Portuguese State Budget, in the scope of the projects UIDB/04750/2020, LA/P/0064/2020 and UIDB/PSI/01662/2020, respectively. Dr Gameiro reports consultancy fees from TMRW Life Sciences and Ferring Pharmaceuticals A/S, speaker fees from Access Fertility, SONA-Pharm LLC, Meridiano Congress International and Gedeon Richter, grants from Merck Serono Ltd, an affiliate of Merck KgaA, Darmstadt, Germany. TRIAL REGISTRATION NUMBER: N/A.


Assuntos
Coeficiente de Natalidade , Fertilização in vitro , Gravidez , Humanos , Feminino , Adulto , Estudos Transversais , Fertilização in vitro/métodos , Resultado do Tratamento , Nascido Vivo , Taxa de Gravidez
2.
Chem Eng J ; 405: 126651, 2021 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-32834762

RESUMO

Outdoor and indoor air pollution has become a global concern in modern society. Although many policies and regulations on air quality have been promulgated worldwide over the past decades, airborne pollution still negatively affects health and therefore the life-style of human beings. One of the strategies to challenge this problem might be reducing the amount of airborne pollutant by mineralising them via photoinduced reactions. Photocatalytic oxidation of gaseous pollutants via titanium dioxide is one of the most promising solar photochemical reactions. In this research work, by means of a green sol-gel procedure, we have coupled titania to graphene (0.5 and 1.0 wt%) aiming to increase the solar photocatalytic activity of the produced hybrid materials. Transient paramagnetic species formed upon UV-A irradiation were detected by means of EPR spectroscopy. The photocatalytic reactions were assessed by monitoring the removal of nitrogen oxides and two different volatile organic compounds (benzene and isopropanol), which has never been assessed before. Our results highlight the exceptional characteristics of the TiO2/graphene hybrid material synthesised with 1.0 wt% graphene, and its excellent suitability for multi-purpose applications in the field of environmental remediation. Compared to unmodified titania, it shows a clear enhancement in the photocatalytic removal of those hazardous pollutants, having a photocatalytic degradation rate twice higher. In addition, the same material is highly stable and shows fully recyclability over repeated tests. Hybrid titania-graphene materials could thus be exploited to grant safer outdoor and indoor environments, having thus a beneficial impact on public health and on the quality of our lives.

3.
Acta Trop ; 204: 105356, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32001249

RESUMO

Sequence databases on Schistosoma mansoni have revealed micro-exon gene (MEGs) families. Many of these genes are highly expressed in parasite life cycle stages associated with the mammalian host infection and appear to be involved in immune evasion by schistosomes. So, we believe that MEG-coding proteins would make potential candidates for vaccine development or diagnosis for schistosomiasis. Here, we study MEG-3.2 and MEG-3.4, members of the MEG-3 family. Recombinant (r) proteins were produced and formulated with Freund's adjuvant for vaccination of mice. Immunization with recombinant MEG-3.2 or MEG-3.4 formulation generated high levels of IgG1 antibodies. Additionally, vaccination also induced a mixed Th1/Th2/Th17-type of response, since IFN-γ, IL-5 and IL-17 cytokines were detected in the supernatant of spleen cell cultures; however it failed to induce reduction in parasitic worm burden. Finally, the recombinant proteins were evaluated in a serological assay using human samples. Schistosome-infected individuals showed higher levels of both IgG and IgM against rMEG-3.2 compared to non-infected individuals, while only IgM anti-rMEG-3.4 antibodies were elevated in infected patients. Therefore, between both studied molecules, MEG-3.2 protein is the antigen that shows potential to compose a serological diagnosis test for schistosomiasis.


Assuntos
Antígenos de Helmintos/imunologia , Schistosoma mansoni/imunologia , Esquistossomose mansoni/prevenção & controle , Animais , Modelos Animais de Doenças , Feminino , Camundongos , Camundongos Endogâmicos C57BL , Esquistossomose mansoni/sangue , Esquistossomose mansoni/diagnóstico , Vacinação
4.
Hum Reprod ; 33(1): 109-115, 2018 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-29186413

RESUMO

STUDY QUESTION: Do mode of conception [ART versus Natural (NC)] and depression have an interactive effect on antenatal paternal adjustment and paternal attitudes? SUMMARY ANSWER: Depression increased the negative effect of ART on antenatal paternal adjustment and paternal attitudes, specifically on antenatal marital relationship satisfaction. WHAT IS KNOWN ALREADY: Research on antenatal paternal adjustment and paternal attitudes after ART is scarce and has produced inconsistent results. STUDY DESIGN, SIZE, DURATION: This cross-sectional study assessed 197 primiparous men (71 ART and 126 NC) during their partner's second trimester of gestation. PARTICIPANTS/MATERIALS, SETTING, METHODS: Participants were derived from three larger longitudinal studies recruited at public Health Services in Northern Portugal. All men, for who this was their first child and had filled in a socio-demographic questionnaire, measures of depression and anxiety, and antenatal paternal adjustment and paternal attitudes were selected. MAIN RESULTS AND THE ROLE OF CHANCE: An interaction effect of mode of conception and depression was found on antenatal paternal adjustment and paternal attitudes. ART men showing high depressive symptomatology had lower antenatal marital relationship satisfaction than ART men showing low depressive symptomatology and NC men showing high or low depressive symptomatology. LIMITATIONS, REASONS FOR CAUTION: Due to the cross-sectional design of this study and the small sample size in the depression groups, the findings should be interpreted with caution. WIDER IMPLICATIONS OF THE FINDINGS: Specialized psychological support should be available for ART men screened with high depressive symptomatology as part of routine prenatal care appointments. STUDY FUNDING/COMPETING INTEREST(S): This study was conducted at Psychology Research Centre (UID/PSI/ 01662/2013), University of Minho, and at the Unidade de Investigação em Epidemiologia-Instituto de Saúde Pública da Universidade do Porto (EPIUnit) (UID/DTP/04750/2013). It was supported by the Foundation for Science and Technology (Portuguese Ministry of Education and Science) through National funds and co-financed by FEDER through COMPETE2020 under the PT2020 Partnership Agreement (POCI-01-0145-FEDER-007653) and through the Operational Programme Factors of Competitiveness-COMPETE within the project 'Health, Governance and Accountability in Embryo Research: Couples' Decisions About the Fates of Embryos' (FCOMP-01-0124-FEDER-014453), the FCT Investigator contract IF/01674/2015 and PhD grants (SFRH/BD/115048/2016, SFRH/BD/75807/2011 and SFRH/BD/40146/2007). The authors have no conflicts of interest.


Assuntos
Pai/psicologia , Infertilidade/psicologia , Infertilidade/terapia , Técnicas de Reprodução Assistida/psicologia , Adolescente , Adulto , Ansiedade/complicações , Atitude , Estudos Transversais , Depressão/complicações , Feminino , Humanos , Infertilidade/complicações , Masculino , Pessoa de Meia-Idade , Portugal , Gravidez , Adulto Jovem
5.
Eur J Surg Oncol ; 43(6): 1117-1125, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28202211

RESUMO

BACKGROUND AND OBJECTIVES: Conservative surgery for soft-tissue sarcoma (STS) within multimodality treatment attempts to reconcile two contradictory requirements: assuring a good oncological outcome through a wide resection and preserving the function. The aim of our study is to verify whether our conservative approach to STS met these objectives. METHODS: A retrospective database analysis was performed in adults with primary limb or trunk wall STS operated in a single center from 1989 to 2012. Predictive factors for postoperative complications and functional impairment were tested in a multivariate analysis. RESULTS: 728 patients were operated (resection R0: 68%). Neoadjuvant chemotherapy (NAC) was given to 28%, postoperative radiotherapy to 70% of patients. Median follow-up was 103 months. At five years, overall survival was 80% and local recurrences 11%. Major postoperative complications occurred in 8% and functional impairment in 13% of the patients. Independent predictive factors for postoperative complications were American Society of Anesthesiologist classes 2 and 3 (OR: 2.3, CI: 1.2-4.5 and 4.0 CI: 1.7-9.3), tumor size >80 mm (OR: 2.5, CI: 1.3-4.9), tumor site (trunk wall/lower limb, OR: 4.1, CI: 1.3-13.6) and multifocal/multicompartmental spread (OR: 2, CI: 1.1-3.6). Independent predictive factors for function impairment were postoperative complications (OR: 5.3, CI: 2.8-10.1), NAC (OR: 3.6, CI: 2.2-5.8), and bone or neurovascular involvement (OR 3.3, CI 2.0-5.3), whereas Early Rehabilitation after Surgery (ERAS) improved outcome (OR: 0.5, CI: 0.3-0.9). CONCLUSION: Postoperative complications induced functional impairment. They may be reduced by acting on comorbidity factors and careful tumor evaluation prior to surgery. Furthermore, ERAS measures improved function.


Assuntos
Atividades Cotidianas , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Quimioterapia do Câncer por Perfusão Regional/métodos , Extremidades/cirurgia , Complicações Pós-Operatórias/epidemiologia , Radioterapia Adjuvante/métodos , Sarcoma/terapia , Neoplasias de Tecidos Moles/terapia , Tronco/cirurgia , Parede Abdominal , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Terapia Combinada , Dacarbazina/uso terapêutico , Doxorrubicina/uso terapêutico , Feminino , Seguimentos , Humanos , Ifosfamida/uso terapêutico , Masculino , Mesna/uso terapêutico , Pessoa de Meia-Idade , Análise Multivariada , Terapia Neoadjuvante/métodos , Estudos Retrospectivos , Fatores de Risco , Sarcoma/patologia , Neoplasias de Tecidos Moles/patologia , Taxa de Sobrevida , Parede Torácica , Carga Tumoral , Adulto Jovem
6.
Hum Reprod ; 31(10): 2303-12, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-27609986

RESUMO

STUDY QUESTION: Does mode of conception [spontaneous/after infertility treatment (IT)], type of pregnancy (singleton/twin) and parent gender have an effect on anxiety and depression levels and trajectories during pregnancy and the post-partum period? SUMMARY ANSWER: Conception after IT was associated with a transitory increase in anxiety during the perinatal period for parents of singletons, while for IT parents of twins higher levels of psychopathological symptoms tended to persist during pregnancy and the post-partum period. WHAT IS KNOWN ALREADY: Most previous studies have shown that successful IT is not associated with poor psychological well-being during pregnancy and the post-partum period, but there is also some evidence for heightened pregnancy-related anxiety, lower self-esteem and lower self-efficacy. Parents of twins experience increased postnatal anxiety and depression. STUDY DESIGN, SIZE, DURATION: This prospective longitudinal study assessed 267 couples (N = 534) at each trimester of pregnancy, after childbirth and at 3 months post-partum. PARTICIPANTS/MATERIALS, SETTING, METHOD: The sample comprised 36 couples who had conceived after IT (19 twin pairs and 17 singletons) and 231 couples who had conceived spontaneously (SC; 28 twin pairs and 203 singletons). Couples were recruited at four public hospitals in Portugal, and self-report measures of anxiety and depression symptoms were administered. MAIN RESULTS AND THE ROLE OF CHANCE: IT parents reported higher anxiety after childbirth than parents who SC, regardless of pregnancy type. IT parents of twins showed higher anxiety at mid-pregnancy, as well as higher anxiety and depression at 3 months post-partum than IT parents of singletons. Among IT mothers, those who had twins exhibited higher depression after childbirth than those who had singletons. Differences according to mode of conception, pregnancy type and parents gender over time were also noted. During pregnancy, IT parents of twins showed no significant change in depression scores, while the other groups depression scores statistically significantly decreased over time. From pregnancy to the post-partum period, (i) IT parents showed an increase in anxiety scores, whereas SC parents exhibited no changes in anxiety scores; (ii) IT women exhibited an increase in depression scores, while SC women depression scores decreased. During the post-partum period, IT and SC parents of twins showed no changes in anxiety scores, while IT and SC parents of singletons anxiety scores declined. LIMITATIONS, REASONS FOR CAUTION: Due to the small number of IT couples, the interpretation and generalization of the results should be done with caution. WIDER IMPLICATIONS OF THE FINDINGS: The adverse impact of IT on psychopathological symptoms depends mostly on time and type of pregnancy, and is greater for twin pregnancies. These findings are important for tailoring interventions that address parents' specific needs at different moments. STUDY FUNDING/COMPETING INTERESTS: This work was supported by a grant (SFRH/BD/40146/2007) to the first author from the FCT, Foundation for Science and Technology (Portuguese Ministry of Education and Science), by the Operational Program Science and Innovation 2010 (POCI 2010) of the Community Support Board III, by FEDER Funds through the Operational Competitiveness Programme, COMPETE, and through national funding from the FCT under the projects: POCI/SAU-ESP/ 56397/2004 and PTDC/SAU/SAP/116738/2010. The authors have no conflicts of interest.


Assuntos
Ansiedade/psicologia , Depressão/psicologia , Infertilidade/psicologia , Pais/psicologia , Gravidez de Gêmeos/psicologia , Técnicas de Reprodução Assistida/psicologia , Adolescente , Adulto , Feminino , Humanos , Estudos Longitudinais , Pessoa de Meia-Idade , Parto/psicologia , Período Pós-Parto/psicologia , Gravidez , Estudos Prospectivos , Adulto Jovem
7.
Eur J Cancer ; 65: 109-12, 2016 09.
Artigo em Inglês | MEDLINE | ID: mdl-27494036

RESUMO

The long-term results of the EORTC 24954 trial comparing sequential versus alternating chemotherapy and radiotherapy (RT) for patients with locally advanced laryngeal and hypopharyngeal cancer are reported. From 1996 to 2004, 450 patients were randomly assigned (1-1) to a sequential arm (SA = induction cisplatin-5fluorouracil followed by a 70Gy-RT for the responders or a total laryngectomy and post-operative RT for the non-responders) and an alternating arm (AA = cisplatin-5fluorouracil alternated with three 2-week courses of 20 Gy-RT for a total dose of 60 Gy). Median follow-up was 10.2 years. Ten-year survival with functional larynx (primary end-point) and overall survival were similar in both arms (18.7% and 33.6% in SA versus 18.3% and 31.6% in AA). Late toxicity was also similar; however, a trend for higher larynx preservation and better laryngeal function was observed in AA.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma de Células Escamosas/terapia , Quimiorradioterapia/métodos , Neoplasias Hipofaríngeas/terapia , Neoplasias Laríngeas/terapia , Laringe , Tratamentos com Preservação do Órgão/métodos , Adulto , Idoso , Carcinoma de Células Escamosas/patologia , Cisplatino/administração & dosagem , Progressão da Doença , Fracionamento da Dose de Radiação , Feminino , Fluoruracila/administração & dosagem , Humanos , Neoplasias Hipofaríngeas/patologia , Neoplasias Laríngeas/patologia , Laringectomia , Masculino , Pessoa de Meia-Idade , Análise de Sobrevida , Adulto Jovem
8.
Cancer Radiother ; 20(6-7): 677-84, 2016 Oct.
Artigo em Francês | MEDLINE | ID: mdl-27568294

RESUMO

The management of retroperitoneal sarcoma can be very challenging, and the quality of initial treatment strategy appears to be a crucial prognostic factor. En bloc surgery is currently the standard of care for these rare tumours and perioperative treatments such as chemotherapy or radiotherapy have not been validated yet. However, local-regional relapse constitutes the most common disease course. While adjuvant radiotherapy is less and less common due to gastrointestinal toxicities, preoperative radiation therapy offers numerous advantages and is being evaluated as part of a national multicentre phase II study (TOMOREP trial) and is the subject of a European randomized phase III study (STRASS trial). The objective of this article is to present data on preoperative irradiation in terms of dose, volumes and optimal radiotherapy techniques for the treatment of this rare disease.


Assuntos
Neoplasias Retroperitoneais/radioterapia , Sarcoma/radioterapia , Humanos , Margens de Excisão , Terapia Neoadjuvante , Órgãos em Risco , Dosagem Radioterapêutica , Radioterapia Adjuvante , Radioterapia Guiada por Imagem , Radioterapia de Intensidade Modulada , Neoplasias Retroperitoneais/cirurgia , Sarcoma/cirurgia
9.
Cancer Radiother ; 19(6-7): 446-9, 2015 Oct.
Artigo em Francês | MEDLINE | ID: mdl-26337475

RESUMO

Adaptive radiotherapy is defined as all processes leading to the modification of a treatment plan on the basis of patient-specific variations observed during the course of a treatment. This concept is currently of particular relevance due to the development of onboard volumetric imaging systems, which allow for daily viewing of variations in both tumour and organs at risk in terms of position, shape or volume. However, its application in routine clinical practice is limited due to the demanding nature of the processes involved (re-delineation and replanning) and increased dependence on available human resources. Even if "online" strategies, based on deformable image registration (DIR) algorithms, could lead to a reduction in both work and calculation time, for the moment their use is limited to the research field due to uncertainties surrounding the validity of results gathered. Other strategies without DIR can be used as "offline" or "hybrid offline-online" strategies that seem to offer a compromise between time consumption and therapeutic gain for the patient.


Assuntos
Radioterapia (Especialidade) , Planejamento da Radioterapia Assistida por Computador , Humanos , Neoplasias/radioterapia
10.
Radiat Oncol ; 10: 170, 2015 Aug 14.
Artigo em Inglês | MEDLINE | ID: mdl-26268888

RESUMO

PURPOSE/OBJECTIVES: To assess feasibility and toxicity of Helical TomoTherapy for treating anal cancer patients. METHODS: From 2007 to 2011, 64 patients were consecutively treated with TomoTherapy in three centres for locally advanced squamous-cell anal carcinoma (T2 > 4 cm or N positive). Prescribed doses were 45 Gy to the pelvis including inguinal nodes and 59.4 Gy to the primary site and involved nodes with fractions of 1.8 Gy, five days a week. A positional Megavoltage Computed Tomography was performed before each treatment session. All acute and late toxicities were graded according to Common Terminology Criteria for Adverse Events version 3.0. Survival analysis was performed using the Kaplan-Meier method. RESULTS: Median follow-up was 22.9 months. Fifty-four women and 10 men were treated (median age: 62 years). Nineteen patients (29.7%) had T2, 16 patients (25.0%) T3, and 27 patients (42.2%) T4 tumours. Thirty-nine patients (60.9%) had nodal involvement. Median tumour size was 45 mm (range, 10-110 mm). Seven patients had a colostomy before treatment initiation. Fifty-seven patients received concomitant chemotherapy (5-FU/cisplatin or 5-FU/mitomycin-based therapy). Forty-seven patients (73.4 %) experienced a complete response, 13 a partial response or local recurrence, and 11 had salvage surgery; among these, six became complete responders, three experienced metastatic failure, and two local failure. At least four patients experienced metastatic recurrence (concomitant to a local failure for one patient). The two-year overall survival was 85.6% (95 %CI [71.1%-93.0%]), and the one-year disease-free survival, and colostomy-free survival were 68.7% (95 %CI [54.4%-79.4]), and 75.5% (95 %CI [60.7%-85.3%]) respectively. Overall survival, disease-free survival and colostomy free-survival were significantly better for women than men (p = 0.002, p = 0.004, and p = 0.002 respectively). Acute grade ≥3 toxicity included dermatologic (46.9% of patients), gastrointestinal (20.3%), and hematologic (17.2%) toxicity. Acute grade 4 hematologic toxicity occurred in one patient. No grade 5 event was observed. CONCLUSIONS: TomoTherapy for locally advanced anal cancer is feasible. In our three centres of expertise, this technique appeared to produce few acute gastrointestinal toxicities. However, high rates of dermatologic toxicity were observed. The therapeutic efficacy was within the range of expectations and similar to previous studies in accordance with the high rates of locally advanced tumours and nodal involvement.


Assuntos
Neoplasias do Ânus/radioterapia , Carcinoma de Células Escamosas/radioterapia , Radioterapia de Intensidade Modulada/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Neoplasias do Ânus/tratamento farmacológico , Neoplasias do Ânus/mortalidade , Carcinoma de Células Escamosas/tratamento farmacológico , Carcinoma de Células Escamosas/mortalidade , Quimiorradioterapia/efeitos adversos , Quimiorradioterapia/métodos , Cisplatino/administração & dosagem , Intervalo Livre de Doença , Feminino , Fluoruracila/administração & dosagem , França , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Doses de Radiação , Radioterapia de Intensidade Modulada/efeitos adversos
11.
Psychol Health Med ; 20(8): 927-32, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25715641

RESUMO

Depression has been associated with sleep disturbances in pregnancy; however, no previous research has controlled the possible confounding effect of anxiety on this association. This study aims to analyze the effect of depression on sleep during the third trimester of pregnancy controlling for anxiety. The sample was composed by 143 depressed (n = 77) and non-depressed (n = 66) pregnant women who completed measures of depression, anxiety, and sleep. Differences between groups in sleep controlling for anxiety were found. Depressed pregnant women present higher number of nocturnal awakenings and spent more hours trying falling asleep during the night and the entire 24 h period. Present findings point out the effect of depression on sleep in late pregnancy, after controlling for anxiety.


Assuntos
Ansiedade/epidemiologia , Depressão/enzimologia , Complicações na Gravidez/epidemiologia , Terceiro Trimestre da Gravidez , Transtornos do Sono-Vigília/epidemiologia , Adulto , Comorbidade , Feminino , Humanos , Gravidez
12.
Strahlenther Onkol ; 191(3): 217-24, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25245468

RESUMO

BACKGROUND AND PURPOSE: Positron emission tomography (PET) with [(18)F]-fluoromisonidazole ([(18)F]-FMISO) provides a non-invasive assessment of hypoxia. The aim of this study is to assess the feasibility of a dose escalation with volumetric modulated arc therapy (VMAT) guided by [(18)F]-FMISO-PET for head-and-neck cancers (HNC). PATIENTS AND METHODS: Ten patients with inoperable stages III-IV HNC underwent [(18)F]-FMISO-PET before radiotherapy. Hypoxic target volumes (HTV) were segmented automatically by using the fuzzy locally adaptive Bayesian method. Retrospectively, two VMAT plans were generated delivering 70 Gy to the gross tumour volume (GTV) defined on computed tomography simulation or 79.8 Gy to the HTV. A dosimetric comparison was performed, based on calculations of tumour control probability (TCP), normal tissue complication probability (NTCP) for the parotid glands and uncomplicated tumour control probability (UTCP). RESULTS: The mean hypoxic fraction, defined as the ratio between the HTV and the GTV, was 0.18. The mean average dose for both parotids was 22.7 Gy and 25.5 Gy without and with dose escalation respectively. FMISO-guided dose escalation led to a mean increase of TCP, NTCP for both parotids and UTCP by 18.1, 4.6 and 8% respectively. CONCLUSION: A dose escalation up to 79.8 Gy guided by [(18)F]-FMISO-PET with VMAT seems feasible with improvement of TCP and without excessive increase of NTCP for parotids.


Assuntos
Carcinoma de Células Escamosas/radioterapia , Hipóxia Celular/efeitos da radiação , Misonidazol/análogos & derivados , Neoplasias Otorrinolaringológicas/radioterapia , Tomografia por Emissão de Pósitrons , Dosagem Radioterapêutica , Planejamento da Radioterapia Assistida por Computador/métodos , Radioterapia de Intensidade Modulada/métodos , Radioterapia/métodos , Idoso , Carcinoma de Células Escamosas/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Misonidazol/uso terapêutico , Estadiamento de Neoplasias , Neoplasias Otorrinolaringológicas/patologia , Prognóstico , Carga Tumoral/efeitos da radiação
13.
Ann Endocrinol (Paris) ; 76(1 Suppl 1): 1S40-6, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26826482

RESUMO

OBJECTIVES: To study the various local treatments available for thyroid cancer metastases, investigate techniques and assess their advantages and limitations and roles in the overall treatment strategy for metastatic disease. RESULTS: We investigated metastases surgery, external radiation therapy, embolization, chemoembolization, cementoplasty, radiofrequency ablation and cryotherapy, describing techniques, advantages and drawbacks and possible complications. Indications were reviewed according to metastases location, and the roles of the various techniques are discussed in the overall treatment strategy for thyroid cancer metastases. Despite the advent of new targeted therapies, local treatment still has an important role to play: either palliative or, in oligometastatic involvement, curative. Even in extensive disease, it may allow postponement of tyrosine kinase inhibitor therapy, which, once initiated, has to be continued life-long, is expensive and is not free of side-effects.


Assuntos
Metástase Neoplásica/terapia , Neoplasias da Glândula Tireoide/patologia , Técnicas de Ablação , Cementoplastia , Crioterapia , Embolização Terapêutica , Humanos , Radioterapia
14.
Cancer Radiother ; 18(8): 753-6, 2014 Dec.
Artigo em Francês | MEDLINE | ID: mdl-25457789

RESUMO

PURPOSE: The thermoplastic mask often used to immobilize patients in radiotherapy can cause varying levels of stress and anxiety. This study aimed at evaluating the anxiety related to the use of radiotherapy masks and the coping strategies adopted by patients. PATIENTS AND METHODS: Nineteen patients treated with radiotherapy mask for head and neck cancer, a brain tumour or a lymphoma, were met twice by a psychologist, either after the making of the mask and the first course of radiotherapy, or in the middle and at the end of treatment. Thirty-four semi-structured interviews were treated using a thematic content analysis and 13 patients answered to anxiety (STAI-YB) and coping (WCC) scales. RESULTS: The STAI-YB anxiety scores related to wearing the masks were low during the radiotherapy treatment period, and were confirmed by the remarks of patients recorded during the semi-structured interviews. Most patients had a positive perception of the mask, and considered it as a friend or protection. Twelve out of the 13 patients admitting to anxiety benefited from problem focused coping strategies. CONCLUSIONS: Thermoplastic mask-related anxiety is low and possibly lies in the positive representation patients have about the mask. The explanations provided by health professionals on the radiotherapy mask possibly have a very positive effect on this perception.


Assuntos
Ansiedade/etiologia , Neoplasias de Cabeça e Pescoço/psicologia , Neoplasias de Cabeça e Pescoço/radioterapia , Máscaras/efeitos adversos , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Radioterapia/instrumentação
15.
Prostate Cancer Prostatic Dis ; 17(3): 220-6, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24796290

RESUMO

OBJECTIVES: Neuroendocrine prostate cancers (NEPCs) are rare. The current lack of consensus for clinical, biological and pathological characterization as well as therapeutic approach makes the management of those tumors a clinical challenge. This literature review aims to summarize available data on the characterization and management of patients with prostate cancer with a neuroendocrine element. We try to identify major controversies and uncertainties in order to understand all aspects of this particular entity. METHODS: We searched for all articles published and registered in the MEDLINE database before 31 November 2013 with the following search terms: (('prostatic neoplasms' (MeSH Terms)) AND ('carcinoma, neuroendocrine' (MeSH Terms)) OR ('carcinoma, small cell' (MeSH Terms))) AND (English (Language)). RESULTS: Case reports, letters or comments were excluded. We then selected relevant articles from titles and abstracts. Overall, 278 articles published between 1976 and November 2013 were identified. No definition of NEPC seems to be clearly established. Natural history of the disease reveals poor prognosis with median survival of up to 10 to 13 months. Histological characterization appears difficult. Serum markers could be helpful with some controversies in terms of prognostic significance. Concerning management, the majority of patients received local treatment combined with chemotherapy in case of early and localized disease. Few clinical trials described strategy for metastatic disease. CONCLUSIONS: The exploration of the different pathways implicated in the neuroendocrine differentiation of prostate cancers is essential for the comprehension of castration-resistance mechanisms. It will enable the identification of optimal therapeutic strategies for which no recommendation is currently established. Inclusion in prospective clinical trials appears necessary to identify the adequate strategy.


Assuntos
Tumores Neuroendócrinos/diagnóstico , Tumores Neuroendócrinos/terapia , Neoplasias da Próstata/diagnóstico , Neoplasias da Próstata/terapia , Biomarcadores Tumorais/genética , Biomarcadores Tumorais/metabolismo , Gerenciamento Clínico , Humanos , Masculino , Tumores Neuroendócrinos/etiologia , Avaliação de Resultados da Assistência ao Paciente , Prognóstico , Neoplasias da Próstata/etiologia
16.
Parasite Immunol ; 36(7): 303-12, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24749785

RESUMO

Schistosoma mansoni is a blood fluke parasite responsible for schistosomiasis. The best long-term strategy to control schistosomiasis is through immunization combined with drug treatment. In this study, we cloned, expressed and purified SmTSP-2 fused to the N- and C-terminal halves of Sm29 and tested these chimeras as vaccine candidates using an adjuvant approved to be used in humans. The results demonstrated that vaccination with SmTSP-2 fused to N- or C-terminus of Sm29-induced reduction in worm burden and liver pathology when compared to control animals. Additionally, we detected high levels of mouse-specific IgG, IgG1 and IgG2a against both chimeras and significant amounts of IFN-γ and TNF-α and no IL-4. Finally, studies with sera from patients resistant to infection and living in schistosomiasis endemic areas revealed high levels of specific IgG to both chimeras when compared to healthy individuals. In conclusion, SmTSP-2/Sm29 chimeras tested here induced partial protection against infection and might be a potential vaccine candidate.


Assuntos
Antígenos de Bactérias/imunologia , Antígenos de Helmintos/imunologia , Proteínas de Bactérias/imunologia , Proteínas de Helminto/imunologia , Glicoproteínas de Membrana/imunologia , Schistosoma mansoni , Esquistossomose mansoni/imunologia , Esquistossomose mansoni/prevenção & controle , Tetraspaninas/imunologia , Vacinas/imunologia , Adjuvantes Imunológicos/administração & dosagem , Animais , Anticorpos Anti-Helmínticos/sangue , Antígenos de Bactérias/administração & dosagem , Antígenos de Helmintos/administração & dosagem , Proteínas de Bactérias/administração & dosagem , Ilhas de CpG , Citocinas/sangue , Feminino , Proteínas de Helminto/administração & dosagem , Humanos , Imunoglobulina G/sangue , Fígado/patologia , Glicoproteínas de Membrana/administração & dosagem , Camundongos , Camundongos Endogâmicos C57BL , Oligodesoxirribonucleotídeos/administração & dosagem , Proteínas Recombinantes/administração & dosagem , Proteínas Recombinantes/imunologia , Tetraspaninas/administração & dosagem , Vacinas/administração & dosagem
17.
Cancer Radiother ; 18(2): 132-5, 2014 Mar.
Artigo em Francês | MEDLINE | ID: mdl-24629322

RESUMO

Osteogenesis imperfecta is an unusual disease also called Lobstein disease. Characterized by abnormalities of collagen biosynthesis, a possible mutation on 17th chromosome is described. On the other hand, 29% of breast cancers present a mutation on the same chromosome. Nevertheless, the association of osteogenesis imperfecta and breast cancer is at the moment unknown. Therapeutic management is very difficult because of a loss in dihydropyrimidine dehydrogenase for patients having osteogenesis imperfecta, generating some toxicity by default in catabolism of 5-fluorouracil. We report the case of a 49-year-old woman with a breast cancer in the context of osteogenesis imperfecta. Dosimetric considerations permitting to reduce chess dose level have been performed for this patient. With a follow-up of 6 months, no imaging fracture has been revealed after radiotherapy. No evident conclusion about radiation injury from a case report could be described in case of osteogenesis imperfecta. To our knowledge, this is the first case which take into account potential radiation induced toxicities.


Assuntos
Neoplasias da Mama/radioterapia , Neoplasias da Mama/cirurgia , Carcinoma Ductal de Mama/radioterapia , Carcinoma Ductal de Mama/cirurgia , Osteogênese Imperfeita/complicações , Neoplasias da Mama/metabolismo , Carcinoma Ductal de Mama/metabolismo , Carcinoma de Células Escamosas/patologia , Carcinoma de Células Escamosas/cirurgia , Feminino , Humanos , Pessoa de Meia-Idade , Segunda Neoplasia Primária/patologia , Segunda Neoplasia Primária/cirurgia , Dosagem Radioterapêutica , Radioterapia Adjuvante , Receptores de Estrogênio/metabolismo , Receptores de Progesterona/metabolismo , Neoplasias Retais/patologia , Neoplasias Retais/cirurgia
18.
Child Abuse Negl ; 38(3): 510-6, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24269330

RESUMO

It has been suggested that being physically abused leads to someone becoming a perpetrator of abuse which could be associated to parents' gender, timing of the physical abuse and specific socio-demographic variables. This study aims to investigate the role the parents' gender, timing of childhood abuse and socio-demographic variables on the relationship between parents' history of childhood physical abuse and current risk for children. The sample consisted of 920 parents (414 fathers, 506 mothers) from the Portuguese National Representative Study of Psychosocial Context of Child Abuse and Neglect who completed the Childhood History Questionnaire and the Child Abuse Potential Inventory. The results showed that fathers had lower current potential risk of becoming physical abuse perpetrators with their children than mothers although they did not differed in their physical victimization history. Moreover, the risk was higher in parents (both genders) with continuous history of victimization than in parents without victimization. Prediction models showed that for fathers and mothers separately similar socio-demographic variables (family income, number of children at home, employment status and marital status) predicted the potential risk of becoming physical abuses perpetrators. Nevertheless, the timing of victimization was different for fathers (before 13 years old) and mothers (after 13 years old). Then our study targets specific variables (timing of physical abuse, parents' gender and specific socio-demographic variables), which may enable professionals to select groups of parents at greater need of participating in abuse prevention programs.


Assuntos
Sobreviventes Adultos de Maus-Tratos Infantis/psicologia , Maus-Tratos Infantis/psicologia , Pai/psicologia , Mães/psicologia , Adulto , Fatores Etários , Idoso , Criança , Maus-Tratos Infantis/estatística & dados numéricos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Portugal , Fatores de Risco , Fatores Sexuais , Fatores Socioeconômicos , Inquéritos e Questionários , Adulto Jovem
19.
Psychol Med ; 44(5): 927-36, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23822932

RESUMO

BACKGROUND: This prospective cohort study explored the effects of prenatal and postpartum depression on breastfeeding and the effect of breastfeeding on postpartum depression. METHOD: The Edinburgh Postpartum Depression Scale (EPDS) was administered to 145 women at the first, second and third trimester, and at the neonatal period and 3 months postpartum. Self-report exclusive breastfeeding since birth was collected at birth and at 3, 6 and 12 months postpartum. Data analyses were performed using repeated-measures ANOVAs and logistic and multiple linear regressions. RESULTS: Depression scores at the third trimester, but not at 3 months postpartum, were the best predictors of exclusive breastfeeding duration (ß = -0.30, t = -2.08, p < 0.05). A significant decrease in depression scores was seen from childbirth to 3 months postpartum in women who maintained exclusive breastfeeding for ⩾3 months (F 1,65 = 3.73, p < 0.10, η p 2 = 0.05). CONCLUSIONS: These findings suggest that screening for depression symptoms during pregnancy can help to identify women at risk for early cessation of exclusive breastfeeding, and that exclusive breastfeeding may help to reduce symptoms of depression from childbirth to 3 months postpartum.


Assuntos
Aleitamento Materno/psicologia , Depressão Pós-Parto/prevenção & controle , Depressão/psicologia , Complicações na Gravidez/psicologia , Adulto , Aleitamento Materno/estatística & dados numéricos , Depressão/epidemiologia , Depressão Pós-Parto/epidemiologia , Feminino , Humanos , Portugal/epidemiologia , Gravidez , Complicações na Gravidez/epidemiologia , Adulto Jovem
20.
Strahlenther Onkol ; 189(12): 1015-9, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24173497

RESUMO

BACKGROUND AND PURPOSE: Positron-emission tomography (PET) with [(18)F]-fluoromisonidazole (FMISO) permits consideration of radiotherapy dose escalation to hypoxic volumes in head and neck cancers (HNC). However, the definition of FMISO volumes remains problematic. The aims of this study are to confirm that delayed acquisition at 4 h is most appropriate for FMISO-PET imaging and to assess different methods of volume segmentation. PATIENTS AND METHODS: A total of 15 HNC patients underwent several FMISO-PET/computed tomography (CT) acquisitions 2, 3 and 4 h after FMISO injection. Three automatic methods of PET image segmentation were tested: fixed threshold, adaptive threshold based on the ratio between tumour-derived and background activities (R(T/B)) and the fuzzy locally adaptive Bayesian (FLAB) method. The hypoxic fraction (HF), which is defined as the ratio between the FMISO and CT volumes, was also calculated. RESULTS: The R(T/B) for images acquired at 2, 3 and 4 h differed significantly, with mean values of 2.5 (1.7-2.9), 3 (2-4.5) and 3.4 (2.3-6.1), respectively. The mean tumour volume, as defined manually using CT images, was 39.1 ml (1.2-116 ml). After 4 h, the mean FMISO volumes were 18.9 (0.1-81), 9.5 (0.9-33.1) and 12.5 ml (0.9-38.4 ml) with fixed threshold, adaptive threshold and the FLAB method, respectively; median HF values were 0.47 (0.1-1.93), 0.25 (0.11-0.75) and 0.35 (0.14-1.05), respectively. FMISO volumes were significantly different. CONCLUSION: The best contrast is obtained at the 4-hour acquisition time. Large discrepancies were found between the three tested methods of volume segmentation.


Assuntos
Carcinoma de Células Escamosas/diagnóstico por imagem , Carcinoma de Células Escamosas/radioterapia , Neoplasias de Cabeça e Pescoço/diagnóstico por imagem , Neoplasias de Cabeça e Pescoço/radioterapia , Misonidazol/análogos & derivados , Tomografia por Emissão de Pósitrons/métodos , Planejamento da Radioterapia Assistida por Computador/métodos , Radioterapia Guiada por Imagem/métodos , Idoso , Estudos de Viabilidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Compostos Radiofarmacêuticos , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Carcinoma de Células Escamosas de Cabeça e Pescoço , Resultado do Tratamento , Carga Tumoral
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