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1.
Lancet ; 381(9869): 805-16, 2013 Mar 09.
Artículo en Inglés | MEDLINE | ID: mdl-23219286

RESUMEN

BACKGROUND: For women with oestrogen receptor (ER)-positive early breast cancer, treatment with tamoxifen for 5 years substantially reduces the breast cancer mortality rate throughout the first 15 years after diagnosis. We aimed to assess the further effects of continuing tamoxifen to 10 years instead of stopping at 5 years. METHODS: In the worldwide Adjuvant Tamoxifen: Longer Against Shorter (ATLAS) trial, 12,894 women with early breast cancer who had completed 5 years of treatment with tamoxifen were randomly allocated to continue tamoxifen to 10 years or stop at 5 years (open control). Allocation (1:1) was by central computer, using minimisation. After entry (between 1996 and 2005), yearly follow-up forms recorded any recurrence, second cancer, hospital admission, or death. We report effects on breast cancer outcomes among the 6846 women with ER-positive disease, and side-effects among all women (with positive, negative, or unknown ER status). Long-term follow-up still continues. This study is registered, number ISRCTN19652633. FINDINGS: Among women with ER-positive disease, allocation to continue tamoxifen reduced the risk of breast cancer recurrence (617 recurrences in 3428 women allocated to continue vs 711 in 3418 controls, p=0·002), reduced breast cancer mortality (331 deaths vs 397 deaths, p=0·01), and reduced overall mortality (639 deaths vs 722 deaths, p=0·01). The reductions in adverse breast cancer outcomes appeared to be less extreme before than after year 10 (recurrence rate ratio [RR] 0·90 [95% CI 0·79­1·02] during years 5­9 and 0·75 [0·62­0·90] in later years; breast cancer mortality RR 0·97 [0·79­1·18] during years 5­9 and 0·71 [0·58­0·88] in later years). The cumulative risk of recurrence during years 5­14 was 21·4% for women allocated to continue versus 25·1% for controls; breast cancer mortality during years 5­14 was 12·2% for women allocated to continue versus 15·0% for controls (absolute mortality reduction 2·8%). Treatment allocation seemed to have no effect on breast cancer outcome among 1248 women with ER-negative disease, and an intermediate effect among 4800 women with unknown ER status. Among all 12,894 women, mortality without recurrence from causes other than breast cancer was little affected (691 deaths without recurrence in 6454 women allocated to continue versus 679 deaths in 6440 controls; RR 0·99 [0·89­1·10]; p=0·84). For the incidence (hospitalisation or death) rates of specific diseases, RRs were as follows: pulmonary embolus 1·87 (95% CI 1·13­3·07, p=0·01 [including 0·2% mortality in both treatment groups]), stroke 1·06 (0·83­1·36), ischaemic heart disease 0·76 (0·60­0·95, p=0·02), and endometrial cancer 1·74 (1·30­2·34, p=0·0002). The cumulative risk of endometrial cancer during years 5­14 was 3·1% (mortality 0·4%) for women allocated to continue versus 1·6% (mortality 0·2%) for controls (absolute mortality increase 0·2%). INTERPRETATION: For women with ER-positive disease, continuing tamoxifen to 10 years rather than stopping at 5 years produces a further reduction in recurrence and mortality, particularly after year 10. These results, taken together with results from previous trials of 5 years of tamoxifen treatment versus none, suggest that 10 years of tamoxifen treatment can approximately halve breast cancer mortality during the second decade after diagnosis. FUNDING: Cancer Research UK, UK Medical Research Council, AstraZeneca UK, US Army, EU-Biomed.


Asunto(s)
Antineoplásicos Hormonales/administración & dosificación , Neoplasias de la Mama/tratamiento farmacológico , Tamoxifeno/administración & dosificación , Adulto , Anciano , Neoplasias de la Mama/química , Quimioterapia Adyuvante , Femenino , Humanos , Persona de Mediana Edad , Receptores de Estrógenos/análisis , Factores de Tiempo
2.
Invest New Drugs ; 31(5): 1345-54, 2013 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-23801303

RESUMEN

Hormone receptor-positive breast cancer is treated with estrogen inhibitors. Fulvestrant (FASLODEX™), an estrogen receptor (ER) antagonist with no known agonist effects, competitively binds, blocks and degrades the ER. Vascular endothelial growth factor (VEGF) may mediate resistance to ER antagonists. Cediranib is a highly potent VEGF signaling inhibitor with activity against all three VEGF receptors. This randomized Phase II study evaluated cediranib plus fulvestrant. Postmenopausal women with hormone-sensitive metastatic breast cancer were eligible. The primary endpoint was progression-free survival (PFS). Secondary endpoints included objective response rate (ORR), duration of response, clinical benefit rate (CBR), safety/tolerability and pharmacokinetics (PK). Patients received cediranib 45 mg/day (n=31) or placebo (n=31) both plus fulvestrant. Demographic/baseline characteristics were well balanced. Patients treated with cediranib had a numerical advantage in PFS (hazard ratio=0.867, P=0.669; median 223 vs. 112 days, respectively) and ORR (22 vs. 8 %, respectively) vs. placebo, although not statistically significant. CBR was 42 % in both arms. The most common adverse events (AEs) in the cediranib arm were diarrhea (68 %), fatigue (61 %) and hypertension (55 %). The incidence of grade ≥ 3 AEs (68 % vs. 32 %), serious AEs (48 % vs. 13 %), discontinuation AEs (39 % vs. 10 %), and cediranib dose reductions/interruptions (74 % vs. 32 %) were higher in the cediranib arm. There was no evidence of a clinically relevant effect of cediranib on fulvestrant PK. Cediranib plus fulvestrant may demonstrate clinical activity in this population, but cediranib 45 mg was not sufficiently well tolerated. Investigation of lower doses of cediranib plus hormonal/chemotherapy could be considered.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Neoplasias de la Mama/tratamiento farmacológico , Adolescente , Adulto , Anciano , Antineoplásicos/administración & dosificación , Antineoplásicos/efectos adversos , Antineoplásicos/farmacocinética , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/farmacocinética , Neoplasias de la Mama/sangre , Neoplasias de la Mama/patología , Estradiol/administración & dosificación , Estradiol/efectos adversos , Estradiol/análogos & derivados , Estradiol/farmacocinética , Antagonistas de Estrógenos/administración & dosificación , Antagonistas de Estrógenos/efectos adversos , Antagonistas de Estrógenos/farmacocinética , Femenino , Factor 2 de Crecimiento de Fibroblastos/sangre , Fulvestrant , Humanos , Persona de Mediana Edad , Metástasis de la Neoplasia , Inhibidores de Proteínas Quinasas/administración & dosificación , Inhibidores de Proteínas Quinasas/efectos adversos , Inhibidores de Proteínas Quinasas/farmacocinética , Quinazolinas/administración & dosificación , Quinazolinas/efectos adversos , Quinazolinas/farmacocinética , Factor A de Crecimiento Endotelial Vascular/sangre , Receptor 2 de Factores de Crecimiento Endotelial Vascular/sangre , Adulto Joven
3.
Mol Biol Rep ; 39(4): 4899-907, 2012 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-22134752

RESUMEN

Polymorphisms in genes involved in folate metabolism have been shown to be implicated in breast cancer risk but with contradictory results. In this case-control study, we investigated the association between MTHFR C677T and A1298C, TYMS 5'-UTR, MTR A2756G and cSHMT C1420T and also the folate carrier (RFC1 G80A) and breast cancer risk in a northeastern Brazilian population. The study included 183 women diagnosed with breast cancer and 183 controls volunteers without any history of cancer. Also a significant number of healthy individuals were included for allelic frequency in the population studied. Risk of breast cancer was estimated by conditional logistic regression. An association with risk was found for women carrying the MTR A2756G polymorphic allele (AG, P = 0.0036; AG/GG, P = 0.0040), and a protective effect in carriers of the RFC1 G80A polymorphic allele (GA, P = 0.0015; AA, P = 0.0042). Stratifying the data by age (cutoff point of 50 years old), different distributions were observed for breast cancer risk. For women ≤50 years, the risk observed in the presence of the polymorphic allele MTR 2756 (AG/GG) in the general analysis was, restricted to this age group (P = 0.0118). Conversely, for women over 50, the risk of breast cancer development was statistically associated with the MTHFR 677CT genotype, but especially significant was risk associated with the presence of the polymorphic allele of cSHMT C1420T (P = 0.0120) and the protective effect associated with the RFC1 G80A polymorphism allele (P = 0.0021), was restrict to this age group. These data indicate that the cutoff age used (50 years old) was appropriate, since it was able to discriminate risk in each age group in the population studied and also to point to the importance of age in the analyses of cancer-associated polymorphisms.


Asunto(s)
Envejecimiento/patología , Neoplasias de la Mama/enzimología , Neoplasias de la Mama/genética , Ácido Fólico/metabolismo , Estudios de Asociación Genética , Predisposición Genética a la Enfermedad , Polimorfismo de Nucleótido Simple/genética , Regiones no Traducidas 5'/genética , Adulto , Anciano , Brasil , Neoplasias de la Mama/patología , Femenino , Frecuencia de los Genes/genética , Genética de Población , Humanos , Persona de Mediana Edad , Estadificación de Neoplasias , Reacción en Cadena de la Polimerasa , Factores de Riesgo
4.
Ophthalmic Plast Reconstr Surg ; 26(4): 269-72, 2010.
Artículo en Inglés | MEDLINE | ID: mdl-20523253

RESUMEN

PURPOSE: To compare the level of sedation of oral administration of diazepam or midazolam associated or not with clonidine and their effects on upper eyelid margin position, heart rate, arterial pressure, and oxygen saturation. METHODS: Seventy consecutive healthy patients American Society of Anesthesiologists (ASA) grade I-II scheduled for lower eyelid blepharoplasty were randomized into 4 groups according to the oral sedative agent used (group 1, diazepam 10 mg; group 2, diazepam 10 mg plus clonidine 0.15 mg; group 3, midazolam 15 mg; group 4, midazolam plus clonidine 0.15 mg). For all patients, the midpupil-to-upper eyelid margin distance, the heart rate, systolic and diastolic blood pressure, and oxygen saturation were recorded before and 1 hour after the administration of oral medication. The level of sedation at the time of surgery was measured with the Michigan University scale. RESULTS: The depth of sedation was significantly more pronounced with midazolam (median score = 2) than with diazepam (median score = 1). Clonidine slightly increased the level of sedation of both diazepam and midazolam. The diastolic arterial blood pressure drop with midazolam associated or not with clonidine was significantly greater than with diazepam. The mean upper eyelid margin position shift (-1.42 mm) verified when clonidine was associated with midazolam was also significantly greater than with diazepam. DISCUSSION: Oral sedation with diazepam or midazolam associated or not with clonidine is safe for ASA grade I-II patients. The systemic effects of diazepam and midazolam were small and very similar. The sedation induced by midazolam was clearly greater than that induced by diazepam. However, this higher level of sedation was accompanied by a more important shift in upper eyelid margin position.


Asunto(s)
Analgésicos/administración & dosificación , Anestesia Local , Blefaroplastia , Clonidina/administración & dosificación , Diazepam/administración & dosificación , Hipnóticos y Sedantes/administración & dosificación , Midazolam/administración & dosificación , Administración Oral , Procedimientos Quirúrgicos Ambulatorios , Presión Sanguínea/efectos de los fármacos , Sedación Consciente , Combinación de Medicamentos , Párpados/cirugía , Femenino , Frecuencia Cardíaca/efectos de los fármacos , Humanos , Masculino , Persona de Mediana Edad , Consumo de Oxígeno/efectos de los fármacos , Medicación Preanestésica
6.
Mol Genet Metab Rep ; 20: 100481, 2019 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-31304091

RESUMEN

Erythropoietic protoporphyria (EPP) is an autosomal recessive deficiency in heme biosynthesis due to pathogenic variants in the ferrochelatase gene (FECH). Patients present with lifelong photosensitivity and potential liver disease. Here we report a novel FECH variant designated c.904_912+1del found in trans with the c.315-48T>C hypomorphic variant, in one family with three affected individuals. These patients presented with immediate painful cutaneous photosensitivity but no hepatic manifestations. All have elevated protoporphyrin levels consistent with a diagnosis of EPP. Genetic, biochemical, and functional assay results obtained for this family suggest that the unique variant c.904_912+1del is likely pathogenic and thus causative of EPP.

7.
Arq Bras Oftalmol ; 71(2): 262-4, 2008.
Artículo en Inglés | MEDLINE | ID: mdl-18516430

RESUMEN

We report the case of an 11-year-old girl with sickle cell disease who presented to the emergency room after being hit by a mud pie in the left frontal region. Examination evidenced left eye proptosis, eyelid swelling, reduced visual acuity and afferent pupillary defect, without any inflammatory signs such as fever, hyperemia or tenderness. Computed tomography of the orbits showed a large superomedial subperiosteal hematoma in the left orbit. The patient was treated with canthotomy, cantholysis and surgical draining of the hematoma. Two days after drainage she persisted with a subperiosteal hematoma and low visual acuity. A wide exploration of the orbital roof through a lid crease approach disclosed a thickened superior orbital rim with multiple bone defects along the roof and with continuous bleeding. Hemostasis was accomplished with bone wax. Orbital compression was resolved and the patient recovered her previous normal visual acuity.


Asunto(s)
Anemia de Células Falciformes/complicaciones , Traumatismos Craneocerebrales/complicaciones , Hematoma/etiología , Síndromes de Compresión Nerviosa/etiología , Enfermedades Orbitales/etiología , Periostio/lesiones , Niño , Descompresión Quirúrgica , Drenaje , Combinación de Medicamentos , Femenino , Hematoma/diagnóstico por imagen , Hematoma/cirugía , Hemostasis Quirúrgica , Hemostáticos/uso terapéutico , Humanos , Síndromes de Compresión Nerviosa/diagnóstico por imagen , Síndromes de Compresión Nerviosa/cirugía , Enfermedades Orbitales/diagnóstico por imagen , Enfermedades Orbitales/cirugía , Palmitatos/uso terapéutico , Radiografía , Agudeza Visual/fisiología , Ceras/uso terapéutico
8.
Ophthalmic Plast Reconstr Surg ; 24(2): 107-12, 2008.
Artículo en Inglés | MEDLINE | ID: mdl-18356714

RESUMEN

PURPOSE: To describe the clinical and radiologic features of 4 cases of ossifying fibroma affecting the orbit and to review the literature on orbital involvement by the tumor. METHODS: Small case series. RESULTS: Four patients (3 children and 1 adult) with ossifying fibromas invading the orbit were examined. Two of the 3 children were examined for ossifying fibromas on the orbital roof. One had the psammomatoid form of the disease and the other the trabecular variant. Despite striking differences in the histologic pattern and in the radiologic appearance of the lesions, both children displayed a significant degree of orbital inflammation mimicking orbital cellulitis. The third child and the adult patient had the orbit involved by trabecular ossifying fibromas invading the orbital floor. The tumor of the adult clearly originated in the maxilla, filled the maxillary sinus, and eroded the orbital floor. The tumor of the third child occupied the maxillary, ethmoid, and sphenoid sinuses. In both cases, the clinical presentation was painless eye dystopia and proptosis. CONCLUSIONS: Regardless of the histologic pattern (trabecular or psammomatoid), ossifying fibromas can induce a substantial degree of orbital inflammation in children and must be included in the differential diagnosis of acute orbital inflammation during childhood.


Asunto(s)
Fibroma Osificante/complicaciones , Celulitis Orbitaria/etiología , Neoplasias Orbitales/complicaciones , Adolescente , Niño , Exoftalmia/etiología , Femenino , Fibroma Osificante/diagnóstico por imagen , Fibroma Osificante/patología , Humanos , Masculino , Persona de Mediana Edad , Invasividad Neoplásica , Celulitis Orbitaria/diagnóstico por imagen , Celulitis Orbitaria/patología , Neoplasias Orbitales/diagnóstico por imagen , Neoplasias Orbitales/patología , Radiografía
9.
Artículo en Inglés | MEDLINE | ID: mdl-16418672

RESUMEN

A 28-year-old woman presented with progressive proptosis of the left eye. She had a history of familial thrombocytopenia and Hashimoto thyroiditis. CT of the orbits demonstrated a bilateral diffuse intraconal and extraconal infiltration. Biopsy from the left intraconal area revealed the typical histopathology of xanthogranuloma with a mixture of foamy histiocytes, Touton giant cells, and eosinophils. Systemic examination revealed a mediastinal and retroperitoneal infiltration with a focal lesion in the left kidney. A biopsy of the retroperitoneal area showed histopathology identical to that of the orbital lesion. A review of the literature indicated that the association between non-Langerhans histocytoses and immunologic dysfunctions is not uncommon. We hypothesize that Erdheim-Chester disease may be linked to an abnormal interaction between T-lymphocytes and macrophages similarly to the macrophage activation syndromes.


Asunto(s)
Enfermedad de Erdheim-Chester/complicaciones , Enfermedad de Hashimoto/complicaciones , Trombocitopenia/complicaciones , Adulto , Biopsia , Médula Ósea/patología , Diagnóstico Diferencial , Enfermedad de Erdheim-Chester/diagnóstico , Femenino , Estudios de Seguimiento , Enfermedad de Hashimoto/diagnóstico , Humanos , Órbita/diagnóstico por imagen , Órbita/patología , Espacio Retroperitoneal/diagnóstico por imagen , Espacio Retroperitoneal/patología , Trombocitopenia/diagnóstico , Tomografía Computarizada por Rayos X
10.
Ophthalmic Plast Reconstr Surg ; 22(6): 494-5, 2006.
Artículo en Inglés | MEDLINE | ID: mdl-17117117

RESUMEN

A 3-year-old boy was examined for a large nodular fasciitis in the upper eyelid. The lesion was confined to the preseptal plane of the upper eyelid, provoking mechanical ptosis. Excision by an eyelid crease approach was sufficient to restore normal eyelid position.


Asunto(s)
Enfermedades de los Párpados/diagnóstico , Fascitis/diagnóstico , Blefaroptosis/diagnóstico , Blefaroptosis/etiología , Preescolar , Diagnóstico Diferencial , Enfermedades de los Párpados/complicaciones , Enfermedades de los Párpados/cirugía , Fascitis/complicaciones , Fascitis/cirugía , Humanos , Masculino , Tomografía Computarizada por Rayos X
11.
Arq. bras. oftalmol ; 71(2): 262-264, mar.-abr. 2008. ilus
Artículo en Inglés | LILACS | ID: lil-483038

RESUMEN

We report the case of an 11-year-old girl with sickle cell disease who presented to the emergency room after being hit by a mud pie in the left frontal region. Examination evidenced left eye proptosis, eyelid swelling, reduced visual acuity and afferent pupillary defect, without any inflammatory signs such as fever, hyperemia or tenderness. Computed tomography of the orbits showed a large superomedial subperiosteal hematoma in the left orbit. The patient was treated with canthotomy, cantholysis and surgical draining of the hematoma. Two days after drainage she persisted with a subperiosteal hematoma and low visual acuity. A wide exploration of the orbital roof through a lid crease approach disclosed a thickened superior orbital rim with multiple bone defects along the roof and with continuous bleeding. Hemostasis was accomplished with bone wax. Orbital compression was resolved and the patient recovered her previous normal visual acuity.


Relatamos o caso de uma menina de 11 anos com doença falciforme, trazida à sala de emergência após ser atingida por um bloco de barro na região frontal esquerda. Apresentava ao exame proptose do olho esquerdo, edema palpebral, diminuição da acuidade visual e defeito pupilar aferente, sem quaisquer sinais inflamatórios como febre, hiperemia ou aumento de sensibilidade. A tomografia computadorizada de órbitas demonstrou um extenso hematoma subperiósteo superomedial na órbita esquerda. A paciente foi tratada com cantotomia, cantólise e drenagem cirúrgica do hematoma. Dois dias após a drenagem, ela permaneceu com um hematoma subperiósteo e a acuidade visual diminuída. Uma ampla exploração através de incisão no sulco palpebral superior revelou um rebordo orbitário superior espessado, e múltiplos defeitos ósseos ao longo do teto da órbita com sangramento persistente. Foi realizada hemostasia com cera óssea. A compressão orbitária foi resolvida, e a paciente recuperou a acuidade visual normal prévia.


Asunto(s)
Niño , Femenino , Humanos , Anemia de Células Falciformes/complicaciones , Traumatismos Craneocerebrales/complicaciones , Hematoma/etiología , Síndromes de Compresión Nerviosa/etiología , Enfermedades Orbitales/etiología , Periostio/lesiones , Descompresión Quirúrgica , Drenaje , Combinación de Medicamentos , Hemostasis Quirúrgica , Hematoma , Hematoma/cirugía , Hemostáticos/uso terapéutico , Síndromes de Compresión Nerviosa , Síndromes de Compresión Nerviosa/cirugía , Enfermedades Orbitales , Enfermedades Orbitales/cirugía , Palmitatos/uso terapéutico , Agudeza Visual/fisiología , Ceras/uso terapéutico
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