RESUMO
Quantification of abdominal visceral adipose tissue (VAT) is important to understand obesity-related comorbidities. We hypothesized that dual X-ray absorptiometry (DXA) measurements of VAT would correlate with traditional gold standards of magnetic resonance imaging (MRI) and computed tomography (CT) in older men. Deming regression and Bland-Altman plots were used to assess the agreement between VAT measured simultaneously by DXA and MRI (n=95) in a cohort of older males participating in a randomized trial of testosterone replacement for diabetes. We also correlated DXA with single-slice CT (n=102) in a cohort of older males undergoing testosterone deprivation for prostate cancer. Lunar Prodigy DXA scanners using enCORE software was used to measure VAT. DXA VAT volume strongly correlated with MRI VAT volume (r=0.90, P<0.0001) and CT VAT area (r=0.83, P<0.0001). As DXA assesses VAT volume in a smaller compartment than MRI, Bland-Altman analysis demonstrated DXA systematically underestimated VAT by an approximately 30% proportional bias. DXA VAT volume measured by Lunar Prodigy DXA scanners correlate well with gold standard MRI and CT quantification methods, and provides a low radiation, efficient, cost-effective option. Future clinical studies examining the effects of interventions on body composition and regional fat distribution may find DXA an appropriate volumetric method to quantify VAT.
Assuntos
Absorciometria de Fóton , Gordura Intra-Abdominal/diagnóstico por imagem , Imageamento por Ressonância Magnética , Obesidade/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Adiposidade , Idoso , Austrália/epidemiologia , Índice de Massa Corporal , Comorbidade , Estudos Transversais , Humanos , Gordura Intra-Abdominal/fisiopatologia , Masculino , Obesidade/complicações , Obesidade/fisiopatologia , Reprodutibilidade dos TestesRESUMO
Often decisions have to be made in acute situations, when there is no time for discussion. The decision may have extreme consequences for the patient. The case is reported of a girl aged 15 years with an expansively growing tumour of the uterus. An intra-abdominal haemorrhage was caused by a ruptured vascular connection. The aggressive behaviour of the tumour aroused suspicion of malignancy. At emergency laparotomy the tumour was enucleated from the uterus. Uterus and adnexa were preserved. The next problem in decision-making was the doubt concerning the pathological diagnosis: benign cellular leiomyoma or low-grade leiomyosarcoma. Now, 5 years after the laparotomy, there are no signs of recurrence. The problems concerning the diagnoses of 'leiomyoma' and 'leiomyosarcoma' are briefly reviewed.
Assuntos
Leiomioma/diagnóstico , Neoplasias Uterinas/diagnóstico , Adolescente , Feminino , Seguimentos , Humanos , Leiomioma/cirurgia , Fatores de Tempo , Neoplasias Uterinas/cirurgiaAssuntos
Episiotomia , Dor , Períneo/lesões , Adulto , Feminino , Humanos , Dor Pós-Operatória , Gravidez , Ruptura , Fatores de Tempo , CicatrizaçãoRESUMO
Cisplatin is the most important drug in the treatment of advanced ovarian cancer. The role of anthracyclines is controversial. We compared a combination of epirubicin plus cisplatin (EP) with a regimen of cyclophosphamide, epirubicin and cisplatin (CEP). Patients with stage Ic-IV ovarian cancer were randomized to receive either epirubicin 100 mg/m2 plus cisplatin 75 mg/m2 q 4 weeks or cyclophosphamide 500 mg/m2 plus epirubicin 75 mg/m2 plus cisplatin 50 mg/m2 q 4 weeks, which we considered the reference treatment based on our previous experience. Patients were initially debulked, followed by six cycles of chemotherapy, or in case primary debulking was insufficient or considered inappropriate, secondary debulking was attempted in selected cases after sufficient chemotherapy-induced regression. Optimal debulking was defined as residual lesions < or = 2 cm. A total of 210 patients (191 eligible) were randomized. Results did not show significant differences in all major endpoints (pathologically documented complete response and survival). The median survival for all patients was 34 months, for patients with stage III 26 months, for patients with stage IV 20 months and it has not been reached for patients with stage Ic-II. As no significant differences between an equitoxic regimen of EP and CEP were detected, it might be more useful to look again at the anthracyclines as part of combination chemotherapy instead of the alkylating agents.