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1.
J Craniomaxillofac Surg ; 52(1): 71-76, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38129187

RESUMEN

The aim of this study was to investigate the impact of orthognathic therapy on patients' quality of life. Therefore, a systematic review was conducted including all prospective studies that compared pretherapeutic and posttherapeutic Oral Health Impact Profile (OHIP) or Overall Quality of Life (OQOL) questionnaire scores. Studies in patients with congenital deformities, clefts, or posttraumatic or cancer-associated deformities were excluded. Overall, 23 prospective studies were included; 8 used OHIP, 9 used OQOL and 6 used both questionnaires. A total of 1039 patients were identified (60.29% women, 39.71% men), with a mean age of 45.17 years. All analyzed studies showed in both OHIP and OQLQ an improvement of the quality of life in patients after orthognathic therapy. While improved scores could be observed in all investigated criteria, the studies demonstrated that social and aesthetic aspects showed the most prominent impact. Comparison of different Angle Classes showed, furthermore, that Class III patients had an even greater advantage over those with a Class II deformity. The review confirms that the quality of life in patients with orthognathic therapy improves significantly in all observed aspects. With regard to Angle Classes, Class III patients showed an even greater improvement than Class II patients.


Asunto(s)
Cirugía Ortognática , Procedimientos Quirúrgicos Ortognáticos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estética Dental , Calidad de Vida , Encuestas y Cuestionarios
2.
Respirology ; 28(12): 1154-1165, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-37587874

RESUMEN

BACKGROUND AND OBJECTIVE: Indoor air pollution (IAP) and tobacco smoke exposure (ETS) are global health concerns contributing to the burden of childhood respiratory disease. Studies assessing the effects of IAP and ETS in preschool children are limited. We assessed the impact of antenatal and postnatal IAP and ETS exposure on lung function in a South African birth cohort, the Drakenstein Child Health Study. METHODS: Antenatally enrolled mother-child pairs were followed from birth. Lung function measurements (oscillometry, multiple breath washout and tidal breathing) were performed at 6 weeks and 3 years. Quantitative antenatal and postnatal IAP (particulate matter [PM10 ], volatile organic compounds [VOC]) and ETS exposures were measured. Linear regression models explored the effects of antenatal and postnatal exposures on lung function at 3 years. RESULTS: Five hundred eighty-four children had successful lung function testing, mean (SD) age of 37.3 (0.7) months. Exposure to antenatal PM10 was associated with a decreased lung clearance index (p < 0.01) and postnatally an increase in the difference between resistance at end expiration (ReE) and inspiration (p = 0.05) and decrease in tidal volume (p = 0.06). Exposure to antenatal VOC was associated with an increase in functional residual capacity (p = 0.04) and a decrease in time of expiration over total breath time (tE /tTOT ) (p = 0.03) and postnatally an increase in respiratory rate (p = 0.05). High ETS exposure postnatally was associated with an increase in ReE (p = 0.03). CONCLUSION: Antenatal and postnatal IAP and ETS exposures were associated with impairment in lung function at 3 years. Strengthened efforts to reduce IAP and ETS exposure are needed.


Asunto(s)
Contaminación del Aire Interior , Contaminación del Aire , Contaminación por Humo de Tabaco , Compuestos Orgánicos Volátiles , Preescolar , Humanos , Femenino , Embarazo , Contaminación del Aire Interior/efectos adversos , Contaminación por Humo de Tabaco/efectos adversos , Cohorte de Nacimiento , Compuestos Orgánicos Volátiles/efectos adversos , Compuestos Orgánicos Volátiles/análisis , Pulmón , Exposición a Riesgos Ambientales/efectos adversos
3.
Clin Oncol (R Coll Radiol) ; 35(10): e622-e627, 2023 10.
Artículo en Inglés | MEDLINE | ID: mdl-37339923

RESUMEN

AIMS: Irradiation of pelvic bone marrow (PBM) at the level of the typical low dose bath of intensity-modulated radiotherapy delivery (10-20 Gy) is associated with an increased risk of haematological toxicity, particularly when combined with concurrent chemotherapy. Although sparing of the whole of the PBM at a 10-20 Gy dose level is unachievable, it is known that PBM is divided into haematopoietically active and inactive regions that are identifiable based on the threshold uptake of [18F]-fluorodeoxyglucose (FDG) seen on positron emission tomography-computed tomography (PET-CT). In published studies to date, the definition of active PBM widely used is that of a standardised uptake value (SUV) greater than the mean SUV of the whole PBM prior to the start of chemoradiation. These studies include those looking at developing an atlas-based approach to contouring active PBM. Using baseline and mid-treatment FDG PET scans acquired as part of a prospective clinical trial we sought to determine the suitability of the current definition of active bone marrow as representative of differential underlying cell physiology. MATERIALS AND METHODS: Active and inactive PBM were contoured on baseline PET-CT and using deformable registration mapped onto mid-treatment PET-CT. Volumes were cropped to exclude definitive bone, voxel SUV extracted and the change between scans calculated. Change was compared using Mann-Whitney U testing. RESULTS: Active and inactive PBM were shown to respond differentially to concurrent chemoradiotherapy. The median absolute response of active PBM for all patients was -0.25 g/ml, whereas the median inactive PBM response was -0.02 g/ml. Significantly, the inactive PBM median absolute response was shown to be near zero with a relatively unskewed distribution (0.12). CONCLUSIONS: These results would support the definition of active PBM as FDG uptake greater than the mean of the whole structure as being representative of underlying cell physiology. This work would support the development of atlas-based approaches published in the literature to contour active PBM based on the current definition as being suitable.


Asunto(s)
Fluorodesoxiglucosa F18 , Tomografía Computarizada por Tomografía de Emisión de Positrones , Humanos , Tomografía Computarizada por Tomografía de Emisión de Positrones/métodos , Médula Ósea/diagnóstico por imagen , Médula Ósea/efectos de la radiación , Estudios Prospectivos , Tomografía de Emisión de Positrones/métodos , Quimioradioterapia/métodos , Radiofármacos
4.
Breast Cancer Res Treat ; 192(3): 485-489, 2022 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-35132502

RESUMEN

PURPOSE: Endocrine therapy is one of the cornerstones of early breast cancer treatment. While this medication could be initiated on the day of diagnosis, it is often postponed until after completion of surgery, radiotherapy, and chemotherapy. This practice is based on preclinical data suggesting an antagonistic effect between endocrine therapy and cytostatic agents, and on the interpretation of clinical trials comparing concurrent versus sequential use of tamoxifen and chemotherapy. These clinical trials, however, have never shown a statistically significant difference in overall survival or disease-free survival and focused on tamoxifen rather than aromatase inhibitors. Nevertheless, sequentially administered endocrine and chemotherapy have become standard of care worldwide. RESULTS: We performed a literature review and conclude that concurrent endocrine chemotherapy is at least as effective as sequential treatment. In fact, higher response rates have been observed in trials with aromatase inhibitors rather than tamoxifen in a neoadjuvant setting. CONCLUSION: We encourage breast cancer oncologists to re-consider concurrent endocrine chemotherapy as a possible treatment strategy enabling early start of potentially curative endocrine treatment.


Asunto(s)
Neoplasias de la Mama , Antineoplásicos Hormonales/uso terapéutico , Inhibidores de la Aromatasa , Quimioterapia Adyuvante , Supervivencia sin Enfermedad , Femenino , Hormonas , Humanos , Tamoxifeno
5.
BJOG ; 129(6): 959-968, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-34758513

RESUMEN

OBJECTIVE: To evaluate the association of Jewish cultural and religious identity and denominational affiliation with interest in, intention to undertake and uptake of population-based BRCA (Breast Cancer Gene)-testing. DESIGN: Cohort-study set within recruitment to GCaPPS-trial (ISRCTN73338115). SETTING: London Ashkenazi-Jewish (AJ) population. POPULATION OR SAMPLE: AJ men and women, >18 years. METHODS: Participants were self-referred, and attended recruitment clinics (clusters) for pre-test counselling. Subsequently consenting individuals underwent BRCA testing. Participants self-identified to one Jewish denomination: Conservative/Liberal/Reform/Traditional/Orthodox/Unaffiliated. Validated scales measured Jewish Cultural-Identity (JI) and Jewish Religious-identity (JR). Four-item Likert-scales analysed initial 'interest' and 'intention to test' pre-counselling. Item-Response-Theory and graded-response models, modelled responses to JI and JR scales. Ordered/multinomial logistic regression modelling evaluated association of JI-scale, JR-scale and Jewish Denominational affiliation on interest, intention and uptake of BRCA testing. MAIN OUTCOME MEASURES: Interest, intention, uptake of BRCA testing. RESULTS: In all, 935 AJ women/men of mean age = 53.8 (S.D = 15.02) years, received pre-test education and counselling through 256 recruitment clinic clusters (median cluster size = 3). Denominational affiliations included Conservative/Masorti = 91 (10.2%); Liberal = 82 (9.2%), Reform = 135 (15.1%), Traditional = 212 (23.7%), Orthodox = 239 (26.7%); and Unaffiliated/Non-practising = 135 (15.1%). Overall BRCA testing uptake was 88%. Pre-counselling, 96% expressed interest and 60% intention to test. JI and JR scores were highest for Orthodox, followed by Conservative/Masorti, Traditional, Reform, Liberal and Unaffiliated Jewish denominations. Regression modelling showed no significant association between overall Jewish Cultural or Religious Identity with either interest, intention or uptake of BRCA testing. Interest, intention and uptake of BRCA testing was not significantly associated with denominational affiliation. CONCLUSIONS: Jewish religious/cultural identity and denominational affiliation do not appear to influence interest, intention or uptake of population-based BRCA testing. BRCA testing was robust across all Jewish denominations. TWEETABLE ABSTRACT: Jewish cultural/religious factors do not affect BRCA testing, with robust uptake seen across all denominational affiliations.


Asunto(s)
Pruebas Genéticas , Judíos , Estudios de Cohortes , Femenino , Humanos , Judíos/genética , Modelos Logísticos , Londres/epidemiología , Masculino , Persona de Mediana Edad
6.
JPRAS Open ; 29: 157-166, 2021 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-34195335

RESUMEN

Efficacy comparison of several regimens in treating keloids as combined or standalone therapies could provide essential information for selecting appropriate therapy. This study retrospectively evaluated the treatment efficacy of corticosteroid injections, excision, silicone, cryotherapy, or combinations of these for treating keloids. Additionally, the use of corticosteroid injection schemes and combined cryotherapy regimens were analysed. Retrospective chart analysis was performed on 204 keloids treated patients at the plastic surgery department of the Máxima Medical Centre between 2009 and 2018. The patient's age, gender, treatment, anatomic location, scar aetiology, previous therapy, scar recurrence, additional therapy, and follow-up duration were retrieved. Treatment efficacy was assessed through treatment failure, defined by the recurrence or lack of response. Kaplan-Meier and Cox survival analyses were performed to compare treatment efficacy between the different regimens. Monotherapies exhibited a significantly higher chance of treatment failure (HR 2.4, 95% CI 1.4-4.2, p<0.05) when compared to combined therapies. Sporadic corticosteroid injections demonstrated more treatment failure overall (HR 3.5 95% CI 1,6-7,3; p=0.001), but did not differ significantly from injection schemes. Combined cryotherapy efficacy did not differ significantly from the other combined regimens (HR 1,6 95% CI 0,5-5,1; p=0.401). Combined therapies exhibited clear superiority over monotherapies. Sporadic corticosteroid injections demonstrated inferior results compared to all other therapies. Combined cryotherapy cases were insufficient, and more data are required for proper assessment. Future prospective assessments of corticosteroid injection schemes and combined regimens are warranted.

7.
Growth Horm IGF Res ; 57-58: 101391, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33964727

RESUMEN

OBJECTIVE: Acromegaly is characterized by an excess of growth hormone (GH) and insulin like growth-factor 1 (IGF1), and it is strongly associated with cardiovascular diseases (CVD). Both acute and long-lasting pro-inflammatory effects have been attributed to IGF1. Previous results suggest the presence of systemic inflammation in treated patients. Here we assessed the association between treatment of acromegaly, systemic inflammation and vascular function. DESIGN: Ex vivo cytokine production and circulating inflammatory markers were assessed in peripheral blood from treated and untreated acromegaly patients (N = 120), and compared them with healthy controls. A more comprehensive prospective inflammatory and vascular assessment was conducted in a subgroup of six treatment-naive patients with follow-up during treatment. RESULTS: Circulating concentrations of VCAM1, E-selectin and MMP2 were higher in patients with uncontrolled disease, whereas the concentrations of IL18 were lower. In stimulated whole blood, cytokine production was skewed towards a more pro-inflammatory profile in patients, especially those with untreated disease. Prospective vascular measurements in untreated patients showed improvement of endothelial function during treatment. CONCLUSIONS: Acromegaly patients are characterized by a pro-inflammatory phenotype, most pronounced in those with uncontrolled disease. Treatment only partially reverses this pro-inflammatory bias. These findings suggest that systemic inflammation could contribute to the increased risk of CVD in acromegaly patients.


Asunto(s)
Acromegalia/terapia , Adenoma/terapia , Antineoplásicos Hormonales/uso terapéutico , Endotelio Vascular/fisiopatología , Adenoma Hipofisario Secretor de Hormona del Crecimiento/terapia , Inflamación/metabolismo , Procedimientos Neuroquirúrgicos , Radioterapia , Acromegalia/metabolismo , Acromegalia/fisiopatología , Adenoma/metabolismo , Adenoma/fisiopatología , Adulto , Anciano , Grosor Intima-Media Carotídeo , Citocinas/metabolismo , Agonistas de Dopamina/uso terapéutico , Selectina E/metabolismo , Femenino , Adenoma Hipofisario Secretor de Hormona del Crecimiento/metabolismo , Adenoma Hipofisario Secretor de Hormona del Crecimiento/fisiopatología , Hormona de Crecimiento Humana/análogos & derivados , Hormona de Crecimiento Humana/uso terapéutico , Humanos , Inflamación/fisiopatología , Interleucina-18/metabolismo , Masculino , Metaloproteinasa 2 de la Matriz/metabolismo , Persona de Mediana Edad , Análisis de la Onda del Pulso , Somatostatina/análogos & derivados , Resultado del Tratamiento , Molécula 1 de Adhesión Celular Vascular/metabolismo
8.
J Endocrinol Invest ; 44(11): 2359-2366, 2021 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-33666874

RESUMEN

OBJECTIVES: To investigate whether adrenal volumetry provides better agreement with adrenal vein sampling (AVS) than conventional CT for subtyping PA. Furthermore, we evaluated whether the size of this contralateral adrenal was a prognostic factor for clinical outcome after unilateral adrenalectomy. METHODS: We retrospectively analyzed volumes of both adrenal glands of the 180 CT-scans (88/180 with unilateral and 92/180 with bilateral disease) of the patients with PA included in the SPARTACUS trial of which 85 also had undergone an AVS. In addition, we examined CT-scans of 20 healthy individuals to compare adrenal volumes with published normal values. RESULTS: Adrenal volume was higher for the left than the right adrenal (mean and SD: 6.49 ± 2.77 ml versus 5.25 ± 1.87 ml for the right adrenal; p < 0.001). Concordance between volumetry and AVS in subtyping was 58.8%, versus 51.8% between conventional CT results and AVS (p = NS). The volumes of the contralateral adrenals in the patients with unilateral disease (right 4.78 ± 1.37 ml; left 6.00 ± 2.73 ml) were higher than those of healthy controls reported in the literature (right 3.62 ± 1.23 ml p < 0.001; left 4.84 ± 1.67 ml p = 0.02). In a multivariable analysis the contralateral volume was not associated with biochemical or clinical success, nor with the defined daily doses of antihypertensive agents at 1 year follow-up. CONCLUSIONS: Volumetry of the adrenal glands is not superior to current assessment of adrenal size by CT for subtyping patients with PA. Furthermore, in patients with unilateral disease the size of the contralateral adrenal is enlarged but its size is not associated with outcome.


Asunto(s)
Glándulas Suprarrenales , Aldosterona/sangre , Tomografía Computarizada de Haz Cónico , Hiperaldosteronismo , Tomografía Computarizada por Rayos X , Glándulas Suprarrenales/irrigación sanguínea , Glándulas Suprarrenales/diagnóstico por imagen , Glándulas Suprarrenales/patología , Antihipertensivos/uso terapéutico , Tomografía Computarizada de Haz Cónico/métodos , Tomografía Computarizada de Haz Cónico/estadística & datos numéricos , Correlación de Datos , Femenino , Humanos , Hiperaldosteronismo/sangre , Hiperaldosteronismo/clasificación , Hiperaldosteronismo/diagnóstico , Hiperaldosteronismo/fisiopatología , Hipertensión/etiología , Hipertensión/terapia , Masculino , Persona de Mediana Edad , Países Bajos/epidemiología , Tamaño de los Órganos , Pronóstico , Valores de Referencia , Estudios Retrospectivos , Tomografía Computarizada por Rayos X/métodos , Tomografía Computarizada por Rayos X/estadística & datos numéricos
9.
JPRAS Open ; 26: 86-90, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-33251316

RESUMEN

Isolated macrodactyly in adults caused by mosaic pattern PIK3CA mutation can result in significant functional impairment and psychological burden. Due to the rarity of this condition there are no clear treatment guidelines, and those few available are focused on paediatric cases. Reports on surgical management of isolated macrodactyly in adults are lacking. We present here the surgical management through partial amputation of enlarged rays of the right hand in an individual affected by low-grade mosaic PIK3CA mutation.

10.
Clin Oncol (R Coll Radiol) ; 32(12): 874-883, 2020 12.
Artículo en Inglés | MEDLINE | ID: mdl-33023818

RESUMEN

AIMS: The use of diffusion-weighted magnetic resonance imaging (DW-MRI) as a prognostic marker of treatment response would enable early individualisation of treatment. We aimed to quantify the changes in mean apparent diffusion coefficient (ΔADCmean) between a DW-MRI at diagnosis and on fraction 8-10 of chemoradiotherapy (CRT) as a biomarker for cellularity, and correlate these with anal squamous cell carcinoma recurrence. MATERIALS AND METHODS: This prospective study recruited patients with localised anal cancer between October 2014 and November 2017. DW-MRI was carried out at diagnosis and after fraction 8-10 of radical CRT. A region of interest was delineated for all primary tumours and any lymph nodes >2 cm on high-resolution T2-weighted images and propagated to the ADC map. Routine clinical follow-up was collected from Nation Health Service electronic systems. RESULTS: Twenty-three of 29 recruited patients underwent paired DW-MRI scans. Twenty-six regions of interest were delineated among the 23 evaluable patients. The median (range) tumour volume was 13.6 cm3 (2.8-84.9 cm3). Ten of 23 patients had lesions with ΔADCmean ≤ 20%. With a median follow-up of 41.2 months, four patients either failed to have a complete response to CRT or subsequently relapsed. Three of four patients with disease relapse had lesions demonstrating ΔADCmean <20%, the other patient with persistent disease had ΔADCmean of 20.3%. CONCLUSIONS: We demonstrated a potential correlation between patients with ΔADCmean <20% and disease relapse. Further investigation of the prognostic merit of DW-MRI change is needed in larger, prospective cohorts.


Asunto(s)
Neoplasias del Ano/patología , Biomarcadores de Tumor/análisis , Carcinoma de Células Escamosas/patología , Quimioradioterapia/métodos , Recurrencia Local de Neoplasia/patología , Anciano , Neoplasias del Ano/diagnóstico por imagen , Neoplasias del Ano/terapia , Carcinoma de Células Escamosas/diagnóstico por imagen , Carcinoma de Células Escamosas/terapia , Imagen de Difusión por Resonancia Magnética/métodos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/diagnóstico por imagen , Recurrencia Local de Neoplasia/terapia , Pronóstico , Estudios Prospectivos , Carga Tumoral
11.
Vet J ; 263: 105520, 2020 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-32928489

RESUMEN

There is limited information regarding the value of constitutive components of the ACTH stimulation test (ACTHST) and low-dose dexamethasone suppression test (LDDST) including serum baseline cortisol (BC), difference between post-ACTH stimulation cortisol (PC) and BC (ΔACTHC), cortisol concentration 4h after dexamethasone administration (4HC), difference between 4HC and BC (Δ4C), and the difference between cortisol concentration 8h after dexamethasone administration and 4HC (Δ8C). Therefore, the objective of this study was to determine if these components can predict hyperadrenocorticism, pituitary-dependent hyperadrenocorticism (PDH), or functional adrenocortical tumor (FAT) in dogs. Cortisol concentrations were normalized, as fold change (FC), to the PC reference interval upper limit. A total of 1267 dogs were included, with hyperadrenocorticism diagnosed in 537 (PDH, n=356; FAT, n=28; undetermined, n=153) and excluded in 730. The area under the receiver operating curves for BC, ΔACTHC, 4HC, Δ4C, and Δ8C to predict hyperadrenocorticism were 0.76 (95% confidence interval (CI), 0.73-0.79), 0.91 (95% CI, 0.89-0.93), 0.83 (95% CI, 0.80-0.87), 0.55 (95% CI, 0.50-0.60), and 0.67 (95% CI, 0.62-0.72), respectively. A diagnostic limit of ≥0.78 FC for ΔACTHC had excellent sensitivity (1.00; 95% CI, 0.74-1.00), but poor specificity (0.67; 95% CI, 0.64-0.71), to predict FAT in dogs with a positive ACTHST. A diagnostic limit of ≥-0.26 FC for Δ4C had excellent sensitivity (1.00; 95% CI, 0.79-1.00), but poor specificity (0.21; 95% CI, 0.18-0.26), to predict FAT in dogs with a positive LDDST. In hyperadrenocorticoid dogs that have positive ACTHST or LDDST results, ΔACTHC or Δ4C, respectively, could be used to exclude FAT.


Asunto(s)
Glándulas Suprarrenales/fisiopatología , Hiperfunción de las Glándulas Suprarrenales/veterinaria , Enfermedades de los Perros/diagnóstico , Neoplasias de la Corteza Suprarrenal/diagnóstico , Neoplasias de la Corteza Suprarrenal/fisiopatología , Neoplasias de la Corteza Suprarrenal/veterinaria , Hiperfunción de las Glándulas Suprarrenales/diagnóstico , Hormona Adrenocorticotrópica/administración & dosificación , Animales , Área Bajo la Curva , Dexametasona/administración & dosificación , Enfermedades de los Perros/fisiopatología , Perros , Femenino , Hidrocortisona/sangre , Masculino , Hipófisis/fisiopatología , Curva ROC , Estudios Retrospectivos , Sensibilidad y Especificidad
14.
Clin Oncol (R Coll Radiol) ; 32(1): 35-42, 2020 01.
Artículo en Inglés | MEDLINE | ID: mdl-31362843

RESUMEN

AIMS: Dose-response curves suggest that higher doses of radiotherapy improve the complete response rate in rectal cancer. The UK adopted the EXPERT trial dose and fractionation, 45 Gy in 25 fractions to the pelvis with a sequential 9 Gy in five fractions to the gross tumour, in patients where the aim was to maximise the complete response. In the Oxford University Hospital NHS Foundation Trust (Oxford, UK) we deliver a biological equivalent dose (BED5) in selected patients using intensity-modulated radiotherapy (IMRT) with a simultaneous integrated boost (SIB) in 25 fractions. We carried out a retrospective analysis of our series to: (i) document the toxicity of this protocol; (ii) ascertain whether dose constraints from RTOG 0822 were appropriate; (iii) assess the response. MATERIALS AND METHODS: The demographics and treatment details for all consecutive patients treated with this protocol were collected using electronic systems. Patients received 45 Gy to the elective nodes and 52 Gy using a SIB to the gross tumour with capecitabine chemotherapy using IMRT or RapidArc plans. Acute toxicity was collected prospectively during weekly reviews. For the purpose of this study, a dedicated gastrointestinal radiologist reviewed all baseline and post-treatment magnetic resonance images and assigned a magnetic resonance tumour regression grade (mrTRG). RESULTS: Seventy-one patients were identified. Seventy completed radiotherapy with a median overall treatment time of 34 days (range 32-36 days); 67.6% received full-dose chemotherapy, with 21.2% receiving a reduced dose. There was a 4.2% incidence of grade 3+ non-haematological toxicity and 1.5% grade 3 + haematological toxicity. 4.2% were admitted during their radiotherapy, with one death due to a pelvic abscess. The RTOG 0822 constraints were achieved in ≥75% of cases, other than the high-dose bladder constraint. mrTRG 1-2 was seen in 47.8%, with mrTRG 1 seen in 23.9%. CONCLUSIONS: We suggest that our protocol shows acceptable acute toxicity, with promising mrTRG results, and could be adopted by centres as an IMRT equivalent dose for EXPERT dose and fractionation.


Asunto(s)
Neoplasias del Recto/radioterapia , Adulto , Anciano , Anciano de 80 o más Años , Fraccionamiento de la Dosis de Radiación , Femenino , Humanos , Masculino , Persona de Mediana Edad , Dosificación Radioterapéutica , Radioterapia de Intensidad Modulada/métodos , Neoplasias del Recto/patología , Estudios Retrospectivos
15.
BJOG ; 127(3): 364-375, 2020 02.
Artículo en Inglés | MEDLINE | ID: mdl-31507061

RESUMEN

OBJECTIVE: Unselected population-based BRCA testing provides the opportunity to apply genomics on a population-scale to maximise primary prevention for breast-and-ovarian cancer. We compare long-term outcomes of population-based and family-history (FH)/clinical-criteria-based BRCA testing on psychological health and quality of life. DESIGN: Randomised controlled trial (RCT) (ISRCTN73338115) GCaPPS, with two-arms: (i) population-screening (PS); (ii) FH/clinical-criteria-based testing. SETTING: North London Ashkenazi-Jewish (AJ) population. POPULATION/SAMPLE: AJ women/men. METHODS: Population-based RCT (1:1). Participants were recruited through self-referral, following pre-test genetic counselling from the North London AJ population. INCLUSION CRITERIA: AJ women/men >18 years old; exclusion-criteria: prior BRCA testing or first-degree relatives of BRCA-carriers. INTERVENTIONS: Genetic testing for three Jewish BRCA founder-mutations: 185delAG (c.68_69delAG), 5382insC (c.5266dupC) and 6174delT (c.5946delT), for (i) all participants in PS arm; (ii) those fulfilling FH/clinical criteria in FH arm. Linear mixed models and appropriate contrast tests were used to analyse the impact of BRCA testing on psychological and quality-of-life outcomes over 3 years. MAIN OUTCOME MEASURES: Validated questionnaires (HADS/MICRA/HAI/SF12) used to analyse psychological wellbeing/quality-of-life outcomes at baseline/1-year/2-year/3-year follow up. RESULTS: In all, 1034 individuals (691 women, 343 men) were randomised to PS (n = 530) or FH (n = 504) arms. There was a statistically significant decrease in anxiety (P = 0.046) and total anxiety-&-depression scores (P = 0.0.012) in the PS arm compared with the FH arm over 3 years. No significant difference was observed between the FH and PS arms for depression, health-anxiety, distress, uncertainty, quality-of-life or experience scores associated with BRCA testing. Contrast tests showed a decrease in anxiety (P = 0.018), health-anxiety (P < 0.0005) and quality-of-life (P = 0.004) scores in both PS and FH groups over time. Eighteen of 30 (60%) BRCA carriers identified did not fulfil clinical criteria for BRCA testing. Total BRCA prevalence was 2.9% (95% CI 1.97-4.12%), BRCA1 prevalence was 1.55% (95% CI 0.89-2.5%) and BRCA2 prevalence was 1.35% (95% CI 0.74-2.26%). CONCLUSION: Population-based AJ BRCA testing does not adversely affect long-term psychological wellbeing or quality-of-life, decreases anxiety and could identify up to 150% additional BRCA carriers. TWEETABLE ABSTRACT: Population BRCA testing in Ashkenazi Jews reduces anxiety and does not adversely affect psychological health or quality of life.


Asunto(s)
Ansiedad , Detección Precoz del Cáncer , Genes BRCA1 , Genes BRCA2 , Síndrome de Cáncer de Mama y Ovario Hereditario , Calidad de Vida , Adulto , Ansiedad/fisiopatología , Ansiedad/prevención & control , Detección Precoz del Cáncer/métodos , Detección Precoz del Cáncer/psicología , Femenino , Predisposición Genética a la Enfermedad/psicología , Pruebas Genéticas/métodos , Pruebas Genéticas/estadística & datos numéricos , Síndrome de Cáncer de Mama y Ovario Hereditario/diagnóstico , Síndrome de Cáncer de Mama y Ovario Hereditario/etnología , Síndrome de Cáncer de Mama y Ovario Hereditario/genética , Síndrome de Cáncer de Mama y Ovario Hereditario/psicología , Humanos , Judíos/genética , Judíos/estadística & datos numéricos , Londres/epidemiología , Masculino , Anamnesis/estadística & datos numéricos , Incertidumbre
16.
Colorectal Dis ; 22(3): 261-268, 2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-31556218

RESUMEN

AIM: There is significant international variation in the use of neoadjuvant radiation prior to total mesorectal excision. The MERCURY group advocate selective neoadjuvant chemoradiotherapy (CRT). We have performed a retrospective, single-centre study of patients treated with CRT, where only the circumferential resection margin is threatened, with the aim of identifying whether a more selective approach to CRT provides acceptable local relapse rates (LRRs). METHOD: All consecutive patients who underwent radical surgery for rectal adenocarcinoma over a 5-year period (2007-2012) in the Oxford University Trust were considered. Electronic hospital systems were reviewed to obtain patient and tumour demographics, treatment and follow-up information. All patients were classified into risk categories according to National Institute for Health and Care Excellence guidance. Data were analysed using Microsoft Excel and R. RESULTS: Two hundred and seventy-two patients were identified: 123, 89 and 60 in the high-, intermediate- and low-risk categories, respectively. Seventy-nine per cent of those in the high-risk group, 6% in the intermediate and 5% in the low-risk group underwent CRT. The overall 5-year LRR and distant recurrence rate (DRR) were 5.2% and 17.8%, respectively. The 5-year LRR for those who went straight to surgery was 2.0% and for those who had neoadjuvant CRT it was 7.4%. The DRR for these two groups was 8.5% and 18.9%, respectively. CONCLUSION: Our series demonstrates that the use of CRT only in margin-threatening tumours, results in an exceptionally low LRR for those without margin-threatening disease. In routine clinical care, this strategy can minimize the significant morbidity of multimodal treatment and allow earlier introduction of systemic therapy to minimize distant recurrence.


Asunto(s)
Terapia Neoadyuvante , Neoplasias del Recto , Quimioradioterapia , Humanos , Recurrencia Local de Neoplasia/epidemiología , Estadificación de Neoplasias , Neoplasias del Recto/patología , Estudios Retrospectivos , Resultado del Tratamiento
17.
Prev Vet Med ; 164: 56-71, 2019 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-30771895

RESUMEN

Digital dermatitis (DD) is an infectious bacterial disease affecting cattle feet. Footbaths are a common herd-level control method for DD; however, variations in product, concentration, and frequency of use complicate comparisons between protocols. The objective of this systematic review was to evaluate all walk-through footbath protocols reported that determined efficacy for prevention and treatment of DD lesions in dairy cattle. An extensive literature search was conducted, including electronic databases and gray literature updated until March 2018. Studies identified included all liquid walk-through footbath protocols that were compared to other footbath protocols or no footbath. Only studies with treatment or prevention of DD lesions as an outcome were included. Literature search and subsequent screening identified 14 publications with 24 treatment comparisons and 24 prevention comparisons. Studies included mostly had low and/or unclear risks of bias. Descriptive analyses were performed according to prevention and treatment outcomes, with case and success definitions summarized as odds ratios (OR). A subsequent network meta-analysis was conducted of 11 studies, comparing 17 protocol comparisons for the prevention outcome and 10 studies comparing 19 protocol comparisons for the treatment outcome, using semi-informative priors in a Bayesian statistical framework. Results of a random effects Bayesian network meta-analysis indicated only 5% copper sulfate used at least 4 times/wk was superior to both no footbath (OR: 5.26; 95% CrI: 1.27-28.8) and a water placebo (OR: 9.47; 95% CrI: 1.03-85.8) in treatment of DD. No other protocol was associated with a reduction in DD, and there were no differences in pair-wise comparisons between any active treatments. Unfortunately, for both outcomes (treatment and prevention), small sample sizes (adjusted for clustering) limited the power to detect substantial differences between protocol effects. Thus, despite widespread use of footbaths, limited strength of evidence for use remains and standardized protocols with large sample sizes are needed to further investigate effectiveness of footbath protocols for control of DD. This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.


Asunto(s)
Enfermedades de los Bovinos/prevención & control , Dermatitis Digital/prevención & control , Enfermedades del Pie/veterinaria , Higiene/normas , Animales , Bovinos , Enfermedades del Pie/prevención & control , Pezuñas y Garras/patología
18.
BJOG ; 126(6): 784-794, 2019 May.
Artículo en Inglés | MEDLINE | ID: mdl-30767407

RESUMEN

OBJECTIVE: To evaluate factors affecting unselected population-based BRCA testing in Ashkenazi Jews (AJ). DESIGN: Cohort-study set within recruitment to the GCaPPS trial (ISRCTN73338115). SETTING: North London AJ population. POPULATION OR SAMPLE: Ashkenazi Jews women/men >18 years, recruited through self-referral. METHODS: Ashkenazi Jews women/men underwent pre-test counselling for BRCA testing through recruitment clinics (clusters). Consenting individuals provided blood samples for BRCA testing. Data were collected on socio-demographic/family history/knowledge/psychological well-being along with benefits/risks/cultural influences (18-item questionnaire measuring 'attitude'). Four-item Likert-scales analysed initial 'interest' and 'intention-to-test' pre-counselling. Uni- and multivariable logistic regression models evaluated factors affecting uptake/interest/intention to undergo BRCA testing. Statistical inference was based on cluster robust standard errors and joint Wald tests for significance. Item-Response Theory and graded-response models modelled responses to 18-item questionnaire. MAIN OUTCOME MEASURES: Interest, intention, uptake, attitude towards BRCA testing. RESULTS: A total of 935 individuals (women = 67%/men = 33%; mean age = 53.8 (SD = 15.02) years) underwent pre-test genetic-counselling. During the pre-counselling, 96% expressed interest in and 60% indicated a clear intention to undergo BRCA testing. Subsequently, 88% opted for BRCA testing. BRCA-related knowledge (P = 0.013) and degree-level education (P = 0.01) were positively and negatively (respectively) associated with intention-to-test. Being married/cohabiting had four-fold higher odds for BRCA testing uptake (P = 0.009). Perceived benefits were associated with higher pre-counselling odds for interest in and intention to undergo BRCA testing. Reduced uncertainty/reassurance were the most important factors contributing to decision-making. Increased importance/concern towards risks/limitations (confidentiality/insurance/emotional impact/inability to prevent cancer/marriage ability/ethnic focus/stigmatisation) were significantly associated with lower odds of uptake of BRCA testing, and discriminated between acceptors and decliners. Male gender/degree-level education (P = 0.001) had weaker correlations, whereas having children showed stronger (P = 0.005) associations with attitudes towards BRCA testing. CONCLUSIONS: BRCA testing in the AJ population has high acceptability. Pre-test counselling increases awareness of disadvantages/limitations of BRCA testing, influencing final cost-benefit perception and decision-making on undergoing testing. TWEETABLE ABSTRACT: BRCA testing in Ashkenazi Jews has high acceptability and uptake. Pre-test counselling facilitates informed decision-making.


Asunto(s)
Genes BRCA1 , Genes BRCA2 , Predisposición Genética a la Enfermedad , Pruebas Genéticas , Síndrome de Cáncer de Mama y Ovario Hereditario , Judíos , Adulto , Actitud Frente a la Salud/etnología , Características Culturales , Femenino , Asesoramiento Genético/psicología , Predisposición Genética a la Enfermedad/etnología , Predisposición Genética a la Enfermedad/psicología , Pruebas Genéticas/economía , Pruebas Genéticas/estadística & datos numéricos , Síndrome de Cáncer de Mama y Ovario Hereditario/etnología , Síndrome de Cáncer de Mama y Ovario Hereditario/genética , Síndrome de Cáncer de Mama y Ovario Hereditario/psicología , Humanos , Judíos/genética , Judíos/psicología , Londres , Masculino , Mutación , Participación del Paciente/estadística & datos numéricos , Factores Socioeconómicos
19.
Clin Oncol (R Coll Radiol) ; 31(2): 72-80, 2019 02.
Artículo en Inglés | MEDLINE | ID: mdl-30583927

RESUMEN

AIMS: To investigate the potential role for a biological boost in anal cancer by assessing whether subvolumes of high 18F-fluorodeoxyglucose (FDG) avidity, identified at outset, are spatially consistent during a course of chemoradiotherapy (CRT). MATERIALS AND METHODS: FDG-positron emission tomography (FDG-PET) scans from 21 patients enrolled into the ART study (NCT02145416) were retrospectively analysed. In total, 29 volumes including both primary tumours and involved nodes >2 cm were identified. FDG-PET scans were carried out before treatment and on day 8 or 9 of CRT. FDG subvolumes were created using a percentage of maximum FDG avidity at thresholds of 34%, 40%, 50%, on the pre-treatment scans, and 70% and 80% on the subsequent scans. Both FDG-PET scans were deformably registered to the planning computed tomography scan. The overlap fraction and the vector distance were calculated to assess spatial consistency. FDG subvolumes for further investigation had an overlap fraction >0.7, as this has been defined in previous publications as a 'good' correlation. RESULTS: The median overlap fractions between the diagnostic FDG-PET subvolumes 34%, 40% and 50% of maximum standardised uptake value (SUVmax) and subsequent FDG-PET subvolumes of 70% of SUVmax were 0.97, 0.92 and 0.81. The median overlap fraction between the diagnostic FDG-PET subvolumes 34%, 40% and 50% and subsequent FDG-PET subvolumes of 80% were 1.00, 1.00 and 0.92. The median (range) vector distance values between diagnostic FDG-PET subvolumes 34%, 40% and 50% and subsequent FDG-PET subvolumes of 80% were 0.74 mm (0.19-2.94) 0.74 mm (0.19-3.39) and 0.71 mm (0.2-3.29), respectively. Twenty of 29 volumes (69.0%) achieved a threshold > 0.7 between the FDG 50% subvolume on the diagnostic scan and the FDG 80% subvolume on the subsequent scan. CONCLUSION: FDG-avid subvolumes identified at baseline were spatially consistent during a course of CRT treatment. The subvolume of 50% of SUVmax on the pre-treatment scan could be considered as a potential target for dose escalation.


Asunto(s)
Neoplasias del Ano/diagnóstico , Neoplasias del Ano/radioterapia , Carcinoma de Células Escamosas/diagnóstico , Carcinoma de Células Escamosas/radioterapia , Quimioradioterapia/métodos , Fluorodesoxiglucosa F18/uso terapéutico , Tomografía de Emisión de Positrones/métodos , Anciano , Femenino , Fluorodesoxiglucosa F18/farmacología , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos
20.
Oper Orthop Traumatol ; 30(5): 379-386, 2018 Oct.
Artículo en Alemán | MEDLINE | ID: mdl-30091056

RESUMEN

OBJECTIVE: Growth disorders (e. g. caused by congenital hip dislocation, Perthes disease or bacterial coxitis) often lead to an infantile deformity of the proximal femur with a shortened femoral neck and displaced grater trochanter. In 1988, Morscher and Buess described a femoral neck lenghtening osteotomy for treatment of adults. For the first time, we show a modification of this osteotomy for children and adolescents with a locking plate system. The aim is to restore the normal anatomy of the femoral neck and biomechanics of the proximal femur. INDICATIONS: All symptomatic deformities of the proximal femur with a shortened femoral neck and a proximal displacement of the greater trochanter. CONTRAINDICATIONS: Bacterial coxitis within the last two years; elevated infections parameters. Acetabular dysplasia with a lack of femoral head containment. SURGICAL TECHNIQUE: Two osteotomies: one at the level of the greater trochanter to transfer it. The second osteotomy at the level of the distal femoral neck. Stabilization with a locking plate system (LCP Pediatric Hip Plate 130°, Synthes, Oberdorf, Switzerland). POSTOPERATIVE MANAGEMENT: Full weight bearing to a body weight of 55 kg; partial weight bearing with a body weight >55 kg for 6 weeks. RESULTS: No intraoperative or postoperative complications were observed in 5 female patients (mean age 11.67 years). After a follow-up of 6-12 weeks, none of the patients presented a Trendelenburg's sign. After 3-6 months, full range of motion was possible.


Asunto(s)
Cuello Femoral/cirugía , Luxación Congénita de la Cadera/cirugía , Osteotomía/métodos , Adolescente , Artritis Infecciosa/complicaciones , Artritis Infecciosa/cirugía , Fenómenos Biomecánicos , Placas Óseas , Niño , Femenino , Fémur/anomalías , Fémur/fisiopatología , Fémur/cirugía , Cuello Femoral/anomalías , Cuello Femoral/fisiopatología , Luxación Congénita de la Cadera/complicaciones , Articulación de la Cadera/cirugía , Humanos , Enfermedad de Legg-Calve-Perthes/complicaciones , Enfermedad de Legg-Calve-Perthes/cirugía , Resultado del Tratamiento
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