RESUMO
The chronic use of renal replacement therapy in frail elderly patients sometimes provides no tangible benefits and may even have a negative fallout on their quality of life, making prolonged conservative management a reasonable option. However, this is mostly a feeling, since very few papers have addressed this issue and there is no evidence-based medicine related to it. On the other hand, ethical issues are extraordinarily relevant and in this clinical setting extend beyond topics such as end-of-life care and advance care planning. It is evident that clinical decision-making in frail elderly patients with endstage renal disease may be very difficult and needs to be supported by ad hoc clinical trials. In the meantime, the ethical issues must be discussed in society.
Assuntos
Idoso Fragilizado , Falência Renal Crônica/terapia , Diálise Renal/ética , Uremia/terapia , Idoso , HumanosRESUMO
AIMS: Angiogenesis is essential for malignancies growth. CD105 is a proliferation-associated protein abundantly expressed in angiogenic endothelial cells. The aim of this study has been to determine the expression of CD105 in laryngeal squamous cell carcinoma (SCC) and to investigate the role of CD105-assessed mean vascular density (MVD) in predicting patients' prognosis. METHODS: The sections of 43 consecutive cases of laryngeal SCC were stained with mouse monoclonal antibody CD105. All the measures were performed by a computer-based image analysis system. The percentage of the fields occupied by CD105-assessed micro-vessels was determined. RESULTS: The mean CD105-assessed MVD were 11% and 6% in laryngeal SCC with and without malignancy recurrence, respectively. Multivariate logistic regression stated that CD105-assessed MVD was significantly related to disease recurrence (p=0.030). CONCLUSIONS: Our preliminary results suggest that CD105-assessed MVD may be a valuable parameter for predicting patients having an increased risk of developing laryngeal carcinoma loco-regional recurrence.