Browsing by Author "Cotovio, P"
Now showing 1 - 3 of 3
Results Per Page
Sort Options
- Banco de tumores: Imperativo na medicinaPublication . Carvalho, L; Bernardo, MT; Tavares, M; Cotovio, P; Mação, P; Oliveira, CFA tumour bank is a consequence of the modern medicine to follow the knowledge of bio-pathology of pre-neoplastic and neoplastic diseases in order to define diagnostic criteria and accurate therapy. It can be an independent unit but it should depend on a real or virtual net in the country or in connection between different states. The informed agreement of the patient and law are integrally followed according with each country legislation and medical ethics is never overtaken for the accomplishment of diagnosis in the departments of pathology. A tumour bank works in the department of pathology, depends on trained technicians and pathologists and requires specific equipment for the different types of re-collecting, after dealing with confidentiality and law determinations. There are already some tumour bank nets in Europe (Spain, Croatia, Holland, UK, Germany) and Portugal is starting now its way.
- Gitelman syndromePublication . Cotovio, P; Silva, C; Oliveira, N; Costa, FHypokalaemia is a common clinical disorder, the cause of which can usually be determined by the patient's clinical history. Gitelman syndrome is an inherited tubulopathy that must be considered in some settings of hypokalaemia. We present the case of a 60-year-old male patient referred to our nephrology department for persistent hypokalaemia. Clinical history was positive for symptoms of orthostatic hypotension and polyuria. There was no history of drugs consumption other than potassium supplements. Complementary evaluation revealed hypokalaemia (2.15 mmol/l), hypomagnesaemia (0.29 mmol/l), metabolic alkalosis (pH 7.535, bicarbonate 34.1 mmol/l), hypereninaemia (281.7 U/ml), increased chloride (160 mmol/l) and sodium (126 mmol/l) urinary excretion and reduced urinary calcium excretion (0.73 mmol/l). Renal function, remainder serum and urinary ionogram, and renal ultrasound were normal. A diagnosis of Gitelman syndrome was established. We reinforced oral supplementation with potassium chloride and magnesium sulfate. Serum potassium stabilised around 3 mmol/l. The aim of our article is to remind Gitelman syndrome in the differential diagnosis of persistent hypokalaemia
- Transplant glomerulopathy: clinico-pathologic featuresPublication . Silva, C; Cotovio, P; Marques, M; Afonso, N; Sancho, MR; Carvalho, F; Trindade, H; Carreira, A; Campos, M; Nolasco, FTransplant glomerulopathy is a sign of chronic kidney allograft damage. It has a distinct morphology and is associated with poor allograft survival. We aimed to assess the prevalence and clinic-pathologic features of transplant glomerulopathy, as well as determine the functional and histological implications of its severity. We performed a single-centre retrospective observational study during an eight-year period. Kidney allograft biopsies were diagnosed and scored according to the Banff classification, coupled with immunofluorescence studies. The epidemiology, clinical presentation, outcomes (patient and graft survival) and anti-HLA alloantibodies were evaluated. Transplant glomerulopathy was diagnosed in 60 kidney transplant biopsies performed for clinical reasons in 49 patients with ABO compatible renal transplant and a negative T-cell complement dependent cytotoxicity crossmatch at transplantation. The estimated prevalence of transplant glomerulopathy was 7.4% and its cumulative prevalence increased over time. C4d staining in peritubular capillaries (27.6%) was lower than the frequency of anti-HLA antibodies (72.5%), the majority against both classes I and II. Transplant glomerulopathy was associated with both acute (mainly glomerulitis and peritubular capillaritis) and chronic histologic abnormalities. At diagnosis, 30% had mild, 23.3% moderate and 46.7% severe transplant glomerulopathy. The severity of transplant glomerulopathy was associated with the severity of interstitial fibrosis. Other histological features, as well as clinical manifestations and graft survival, were unrelated to transplant glomerulopathy severity.