RESUMEN
BACKGROUND: The GeparQuinto study showed that adding bevacizumab to 24 weeks of anthracycline-taxane-based neoadjuvant chemotherapy increases pathological complete response (pCR) rates overall and specifically in patients with triple-negative breast cancer (TNBC). No difference in pCR rate was observed for adding everolimus to paclitaxel in nonearly responding patients. Here, we present disease-free (DFS) and overall survival (OS) analyses. PATIENTS AND METHODS: Patients (n = 1948) with HER2-negative tumors of a median tumor size of 4 cm were randomly assigned to neoadjuvant treatment with epirubicin/cyclophosphamide followed by docetaxel (EC-T) with or without eight infusions of bevacizumab every 3 weeks before surgery. Patients without clinical response to EC ± Bevacizumab were randomized to 12 weekly cycles paclitaxel with or without everolimus 5 mg/day. To detect a hazard ratio (HR) of 0.75 (α = 0.05, ß = 0.8) 379 events had to be observed in the bevacizumab arms. RESULTS: With a median follow-up of 3.8 years, 3-year DFS was 80.8% and 3-year OS was 89.7%. Outcome was not different for patients receiving bevacizumab (HR 1.03; P = 0.784 for DFS and HR 0.974; P = 0.842 for OS) compared with patients receiving chemotherapy alone. Patients with TNBC similarly showed no improvement in DFS (HR = 0.99; P = 0.941) and OS (HR = 1.02; P = 0.891) when treated with bevacizumab. No other predefined subgroup (HR+/HER2-; locally advanced (cT4 or cN3) or not; cT1-3 or cT4; pCR or not) showed a significant benefit. No difference in DFS (HR 0.997; P = 0.987) and OS (HR 1.11; P = 0.658) was observed for nonearly responding patients receiving paclitaxel with or without everolimus overall as well as in subgroups. CONCLUSIONS: Long-term results, in opposite to the results of pCR, do not support the neoadjuvant use of bevacizumab in addition to an anthracycline-taxane-based chemotherapy or everolimus in addition to paclitaxel for nonearly responding patients. CLINICAL TRIAL NUMBER: NCT 00567554, www.clinicaltrials.gov.
Asunto(s)
Inhibidores de la Angiogénesis/uso terapéutico , Anticuerpos Monoclonales Humanizados/uso terapéutico , Neoplasias de la Mama/tratamiento farmacológico , Sirolimus/análogos & derivados , Adulto , Inhibidores de la Angiogénesis/administración & dosificación , Anticuerpos Monoclonales Humanizados/administración & dosificación , Bevacizumab , Neoplasias de la Mama/metabolismo , Quimioterapia Adyuvante , Quimioterapia Combinada , Everolimus , Femenino , Humanos , Persona de Mediana Edad , Receptor ErbB-2/metabolismo , Sirolimus/administración & dosificación , Sirolimus/uso terapéutico , Análisis de SupervivenciaRESUMEN
OBJECTIVE: To evaluate long-term outcome, risk factors, and causes of death in stage I-IIIA endometrial carcinoma (EC) patients treated only with adjuvant vaginal brachytherapy (VB) and to clarify for which subgroups of patients it is safe to omit external-beam radiotherapy (EBRT). METHODS: Out of 224 EC patients receiving postoperative radiotherapy between 1990 and 2002, 138 had VB alone in curative intent (FIGO [2002]: 85%I, 12%II, 3%IIIA; 18 low risk [IA G1-2, IB G1], 103 intermediate risk [IB G2-3, IC G1-2, IIA-B G1-2], 17 high risk [IC G3, IIIA]). After surgery+/-lymphadenectomy, HDR-brachytherapy prescription (in 95.7% of patients) was 3x10 Gy to the surface or 3x5 Gy at 5 mm tissue depths. RESULTS: Median follow-up was 107 months (range 3-185). Three intermediate and 7 high risk-patients relapsed. The 10-year vaginal control was 99.2%, locoregional control was 95.2% (low/intermediate/high risk: 100%/98.9%/68.8%), and disease-free survival (DFS) was 91.7% (100%/96.8%/55.2%). Risk factors for poor DFS were lymphovascular space invasion, > or = 50% myometrial invasion (univariate, p<0.05), pathological FIGO-stage, and grade 3 (uni-/multivariate, p<0.05). Leading causes of deaths (n=41) were cardiovascular disease (29%) and other malignancies (24%) ahead of EC (19.5%). The 10-year overall survival was 68.5% and the disease-specific survival was 92.4%. Thirty-five secondary tumors in 31 patients led to a higher actuarial death rate (10-year 9.9%, 15-year 17.7%) than EC (7.6%). CONCLUSIONS: Restricting adjuvant therapy to VB alone seems to be safe in low and intermediate risk EC and can be recommended. As death rarely relates to early-stage EC, value of adjuvant therapy is probably better reflected by DFS rather than by overall survival.
Asunto(s)
Braquiterapia/métodos , Neoplasias Endometriales/radioterapia , Adulto , Anciano , Anciano de 80 o más Años , Supervivencia sin Enfermedad , Neoplasias Endometriales/patología , Neoplasias Endometriales/cirugía , Femenino , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Recurrencia Local de Neoplasia/patología , Estadificación de Neoplasias , Estudios Retrospectivos , Factores de Riesgo , Tasa de Supervivencia , VaginaRESUMEN
Bone metabolism and trabecular bone density were studied prospectively in 69 pre-, peri- and early postmenopausal women. Markers of bone resorption (OC = osteocalcin, BAP = bonespecific alkalic phosphatase) and bone formation (PYD = pyridinolin, DPD = desoxypyridnolin, NTX = N-terminal telopeptide crosslinked collagen type I, CTX = C-terminal telopeptide crosslinked collagen type I) in serum and urine were followed over a course of two years with five points of examination (0, 3, 6, 12 and 24 months). Bone density was measured at 0 and 24 months. The results of 40 hormonally untreated women who completed all examinations were compared regarding menopausal status and changes over the 2-year-period. While baseline tracecular bone density was lowest in early postmenoapusal women, perimenopausal women showed greatest bone loss (- 10,6 %) during the two year study period. Bone metabolism markers were highest in the postmenopausal group. Perimenopause was associated with a gradual rise in OC, PYD and CTX. Perimenopausal women showed the highest serum estradiol at 0 and 12 months with values exceeding those of premenopausal women. Whether the increased perimenopausal bone loss could be related to the increase in anovulatory cycles during the perimenopausal transition is subject to ongoing investigation.
Asunto(s)
Densidad Ósea , Huesos/metabolismo , Estrógenos/sangre , Perimenopausia/fisiología , Premenopausia/fisiología , Adulto , Fosfatasa Alcalina/sangre , Biomarcadores/sangre , Estradiol/sangre , Femenino , Hormona Folículo Estimulante/sangre , Humanos , Hormona Luteinizante/sangre , Persona de Mediana Edad , Osteocalcina/sangre , Posmenopausia/fisiologíaRESUMEN
PURPOSE: To evaluate overall survival, local tumor control and cosmetic outcome after breast-conserving surgery followed by radiotherapy without boost irradiation. PATIENTS AND METHODS: In a retrospective study 270 breast cancer patients were treated with breast conserving surgery combined with a homogenous radiation of the tumor bearing breast up to a total dose of 56 Gy without local boost irradiation. Mean follow-up was 48 months. Local tumor control, side effects, cosmetic results and contentment with treatment were assessed using physical examinations and interviews based on a standardized questionnaire. RESULTS: Cause-specific survival at 5 years after treatment was 88.3%, actuarial disease-free survival at 5 years was 76.1%. Within 23 to 78 months after treatment 12 patients suffered from ipsilateral breast recurrence. The actuarial freedom from local recurrence (single tumor manifestation) was 96.8% at 5 years after treatment, 89% at 10 years. The occurrence of local failures was not significantly correlated to tumor size, margins, grading, nodal status, age or lymphangiosis. 15.6% of the patients developed distant metastases. In all patients treatment was performed without interruption. Side effects were predominantly of mild degree, no severe side effects were detected. 73% of physicians and 81% of patients scored their cosmetic outcome as excellent or good. 93% of patients would again decide in favor of this procedure. Whereas use of adjuvant chemotherapy as well as subcutaneous reconstruction of breast tissue did not significantly affect breast cosmesis, analysis demonstrated impaired cosmetic results related to a larger breast size. CONCLUSION: The data of this study show that tumor control achieved by breast conserving surgery in combination with a radiation technique up to a total dose of 56 Gy which omits boost irradiation is within the range of literature data. Side effects of the therapy were tolerable. The treatment displayed a good compatibility with tolerable side effects and good cosmetic results.
Asunto(s)
Neoplasias de la Mama/radioterapia , Neoplasias de la Mama/cirugía , Mastectomía Segmentaria , Cirugía Plástica , Análisis Actuarial , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias de la Mama/mortalidad , Estética , Femenino , Estudios de Seguimiento , Humanos , Mastectomía Segmentaria/mortalidad , Persona de Mediana Edad , Dosificación Radioterapéutica , Radioterapia Adyuvante , Estudios Retrospectivos , Tasa de Supervivencia , Factores de TiempoRESUMEN
Female circumcision is a very old tradition still widely practised in Africa. The extent of female circumcision ranges from resection of the clitoridal prepuce (= sunnitic circumcision) to resection of labia minora and majora as well as clitoridectomy (= pharaonic circumcision). Wound approximation by sutures or scar contraction may cause partial closure of the vaginal orifice (= infibulation). Historical, sociological as well as medical aspects are discussed and reconstructive procedures described.
Asunto(s)
Circuncisión Femenina , Características Culturales , Complicaciones Posoperatorias/etiología , Adolescente , Adulto , Niño , Cicatriz/etiología , Cicatriz/cirugía , Femenino , Humanos , Recién Nacido , Complicaciones del Trabajo de Parto/etiología , Complicaciones del Trabajo de Parto/cirugía , Complicaciones Posoperatorias/cirugía , Embarazo , ReoperaciónRESUMEN
OBJECTIVES: The purpose of the study was to compare myocardial blood flow (MBF) in hyperlipidemic postmenopausal women and age-matched hyperlipidemic men, and to analyze the relationship between cholesterol subfractions and myocardial blood flow in men and women. BACKGROUND: Women are protected from coronary artery disease (CAD) events until well after menopause, in part due to gender-specific differences in lipid profiles. METHODS: To examine the effect of these influences on coronary microcirculation, MBF was quantitated with N-13 ammonia/PET (positron emission tomography) at rest and during adenosine hyperemia in 15 women and 15 men, all nondiabetic, who were matched for age and total cholesterol levels (53+/-4 vs. 50+/-8 years, p = NS, 6.44+/-1.1 vs. 6.31+/-0.85 mmol/liter, or 249+/-41 vs. 244+/-33 mg/dl, p = NS). RESULTS: Women had significantly higher high density lipoprotein (HDL) and lower triglyceride (Tg) levels than did men, and they showed significantly higher resting MBF and stress MBF levels. Significant correlations were found between resting and hyperemic MBF and HDL and Tg levels (r = 0.44, p < 0.02 for stress MBF vs. HDL; r = 0.48, p < 0.007 for stress MBF vs. Tg). Gender was the strongest predictor of hyperemic MBF in multivariate analysis. Women responded to adenosine hyperemia with a significantly higher heart rate than did men, and hemodynamic factors correlated significantly with blood flow both at rest and during stress. CONCLUSIONS: These data suggest that the favorable lipid profile seen in women may be associated with preserved maximal blood flow in the myocardium.
Asunto(s)
Circulación Coronaria , Enfermedad Coronaria/fisiopatología , Lípidos/sangre , Caracteres Sexuales , Adenosina , Colesterol/sangre , Enfermedad Coronaria/sangre , Enfermedad Coronaria/diagnóstico por imagen , Femenino , Estudios de Seguimiento , Frecuencia Cardíaca , Humanos , Hiperemia/sangre , Hiperemia/diagnóstico por imagen , Hiperemia/fisiopatología , Hiperlipidemias/sangre , Hiperlipidemias/diagnóstico por imagen , Hiperlipidemias/fisiopatología , Lipoproteínas HDL/sangre , Lipoproteínas LDL/sangre , Masculino , Persona de Mediana Edad , Posmenopausia/sangre , Pronóstico , Flujo Sanguíneo Regional , Descanso/fisiología , Factores de Riesgo , Tomografía Computarizada de Emisión , Triglicéridos/sangre , VasodilatadoresRESUMEN
Chemoresistance is of outstanding importance for the limited results of chemotherapy in solid tumors. Chemoresistance of multicellular tumor tissues is more pronounced than that of single cells in vivo and in vitro. The enzyme hyaluronidase is able to loosen the cell-cell contact and the interstitial connective tissue and as such, in a number of preclinical and clinical trials, was shown to enhance the efficacy of cytostatic agents. Although proven to be very effective as additive to local chemotherapy, the systemic efficacy is not documented as well. We present a randomized trial done in high-grade astrocytomas with combined chemotherapy and radiation therapy with and without hyaluronidase. After very promising pilot results with systemic hyaluronidase in various tumor entities and also astrocytomas, this randomized study failed to show synergy to chemotherapy and radiation therapy in high-grade astrocytomas concerning survival. The promising preclinical data and the rather well documented activity in therapeutic use as additive to local chemotherapy seem to be an adequate motive to further elucidate the complex manner in which hyaluronidase is active in the interstitial tumor matrix and to obtain more information concerning the optimal route of application, the optimal dosage and the spectrum of tumor entities where it is synergistic with cytostatic chemotherapy and perhaps even radiation therapy.
Asunto(s)
Resistencia a Antineoplásicos , Matriz Extracelular/fisiología , Glioblastoma/tratamiento farmacológico , Hialuronoglucosaminidasa/uso terapéutico , Adulto , Anciano , Quimioterapia Adyuvante , Femenino , Glioblastoma/mortalidad , Humanos , Hialuronoglucosaminidasa/efectos adversos , Masculino , Persona de Mediana Edad , Proyectos Piloto , Tasa de SupervivenciaAsunto(s)
Cistadenocarcinoma Papilar/patología , Cistadenocarcinoma Papilar/secundario , Metástasis Linfática , Neoplasias Ováricas/patología , Biopsia con Aguja , Terapia Combinada , Cistadenocarcinoma Papilar/terapia , Femenino , Humanos , Mamografía , Persona de Mediana Edad , Neoplasias Ováricas/diagnóstico por imagen , Neoplasias Ováricas/terapiaAsunto(s)
Fibrinolíticos/administración & dosificación , Complicaciones Posoperatorias/tratamiento farmacológico , Embolia Pulmonar/tratamiento farmacológico , Terapia Trombolítica , Ensayos Clínicos como Asunto , Contraindicaciones , Relación Dosis-Respuesta a Droga , Esquema de Medicación , Fibrinolíticos/efectos adversos , Humanos , Complicaciones Posoperatorias/mortalidad , Embolia Pulmonar/mortalidad , Factores de Riesgo , Tasa de SupervivenciaAsunto(s)
Selección de Profesión , Docentes Médicos/estadística & datos numéricos , Ginecología/educación , Obstetricia/educación , Médicos Mujeres/estadística & datos numéricos , Movilidad Laboral , Femenino , Alemania , Humanos , Satisfacción en el Trabajo , Grupo de Atención al Paciente , Carga de TrabajoRESUMEN
To evaluate the clinical relevance of testing pituitary-ovarian responses in patients suffering from polycystic ovary syndrome (PCOS) with the GnRH agonist nafarelin, a 1.2-mg dose of nafarelin was given intranasally to 19 women with PCOS and 15 healthy premenopausal women. The subsequent analysis of steroids in both serum and urine during the test was carried out at several time points for up to 24 h. Serum levels of 17 alpha-hydroxyprogesterone were elevated at all time points of the test in PCOS patients vs. controls [at baseline, 3.5 +/- 0.2 vs. 1.8 +/- 0.1 nmol/L (P < 0.001); at 24 h, 9.9 +/- 0.9 vs. 4.9 +/- 0.3 nmol/L (P < 0.001)]. Basal levels of androstenedione were higher in the patient group, but there was no significant change during the test in either group. Serum testosterone levels were also found to differ in PCOS patients compared with the control values at baseline (2.2 +/- 0.2 vs. 1.5 +/- 0.1 nmol/L; P < 0.05) and after nafarelin treatment (at 24 h, 3.2 +/- 0.4 vs. 1.8 +/- 0.2 nmol/L; P < 0.05). Serum estradiol levels rose significantly in both groups during the test; the posttest levels were significantly higher in PCOS than in controls. The PCOS patients displayed a significant increase in androgen and gestagen metabolites as well as in glucocorticoid metabolites excreted in the urine during the 24 h. In the control subjects, except for 17 alpha-hydroxypregnanolone, which rose significantly, none of the urinary steroids investigated showed relevant changes during the nafarelin test. The posttest excretion of allo-tetrahydrocortisol (1.4 +/- 0.2 vs. 0.3 +/- 0.1 mumol/g creatinine; P < 0.001) and the increase in 17 alpha-hydroxypregnanolone excretion (1.4 +/- 0.2 vs. 0.3 +/- 0.1 mumol/g creatinine; P < 0.001) were distinctly higher in PCOS patients than in the controls; the diagnostic sensitivity of the combination of both parameters was 89% at a 93% specificity. Thus, measurements of 17 alpha-hydroxyprogesterone levels in serum and of urinary allo-tetrahydrocortisol and 17 alpha-hydroxypregnanolone after nafarelin treatment make this stimulation test a valuable diagnostic tool for identifying PCOS patients. The significant changes in the excretion of urinary androgen and gestagen metabolites, unmasked by GnRH agonist stimulation, suggest a functional alteration of the pituitary-ovarian axis. The reason for the increased excretion of glucocorticoid metabolites after nafarelin stimulation remains to be clarified.