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M Oliveira

Publications and source records attributed to M Oliveira.

94 records · Page 6Linked to original sources
PubMedDate not supplied

Interface fluid and diffuse corneal edema after laser in situ keratomileusis.

PURPOSE: To report a new complication of interface fluid accumulation and corneal edema in an uneventful laser in situ keratomileusis (LASIK) procedure. METHODS: Uncomplicated bilateral LASIK for myopia using the Hansatome microkeratome was performed. One day postoperatively, the patient noted decreased visual acuity. The topical corticosteroid was changed from dexamethasone to prednisolone acetate 1% every 2 hours. Two weeks later the patient reported worsening visual acuity in both eyes. Uncorrected visual acuity was 20/200 in the right eye and 20/100 in the left. Slit-lamp biomicroscopy indicated significant fluid build-up in the interface. Intraocular pressure (IOP) by Goldmann applanation tonometry was 15 mmHg in the right eye and 14 mmHg in the left. RESULTS: After 4 weeks, intraocular pressure by bidigital pressure was increased and high. The corticosteroid was discontinued and antiglaucoma medication lowered the intraocular pressure, which resulted in corneal clearing and disappearence of interface fluid in both eyes. CONCLUSIONS: Early recognition of this new complication of LASIK is necessary. The falsely low reading of IOP in the setting of interface fluid was the result of easy compressibility of the fluid-filled space and reflects the pressure of the interface fluid. This apparently low IOP reading can be an additional sign of the existence of interface fluid. The corticosteroid should be discontinued and antiglaucoma medication instituted. This should lead to a lowering of intraocular pressure and result in corneal clearing and disappearence of the interface fluid with improvement in visual acuity.

Adult↗
PubMedDate not supplied

[Prevalence of cutaneous lesions in Freixo de Espada à Cinta].

Incidence or prevalence studies on cutaneous lesions in general populations are not available. The community observed by the authors (Freixo de Espada à Cinta, North-Eastern Portugal) is relatively closed. A pre-tested questionnaire for socio-demographic and clinical information was used and a physical observation was conducted in January and February 1994 by the Dermatology Team of Santo António General Hospital, Oporto. The analysis was supported by independent tests (Pearson and Fisher chi 2, Student-t, Mann-Whitney and Kruskall-Wallis). The Spearman correlation coefficient was also used. The results indicated that 51.9% of 1000 subjects analysed were in phototype III. Concerning specific pathologies, the following percentages were observed: melanocytic nevi 81.2; hemangiomas 26.5; androgenetic alopecia 20.5; deshydrotic eczema 12.7; seborrheic keratosis 11; solar keratosis 9.6; acne vulgaris 9.5; seborrheic dermatitis 6.9; superficial mycosis 6.4; other dermatitis 5.5; vascular spiders 4.4; vulgar psoriasis 1.9; vulgar warts 1.5; pediculosis and scabiosis 1.2.; herpes simplex 0.9; impetigo 0.7; tumours (neoplasias) 0.7; dysplastic nevi 0.6; urticaria 0.3. More than nine nevi were counted in 50% of the subjects observed. A difference was observed (p < 0.05) concerning the presence of nevi, mycosis, hemangiomas, non-specific dermatitis, vascular spider and solar keratosis according to sex. The females had more nevi in number than males (Mann-Whitney, p = 0.03). According to age there was a difference concerning the presence of nevi, superficial mycosis, deshydrotic eczema, seborrheic dermatitis, acne, psoriasis, tumours, hemangiomas, non-specific dermatitis, vascular spider, solar keratosis (with linear augmentation by age) and seborrheic keratosis. Nevi increased with ageing (Rs = 0.10 p < 0.001) and a greater number were observed in age groups 0-9 and 60 or more years. Acne was observed in 9.4% of the females and 9.7% of the males, 46.2% in the 15-29 year-old age group. This study indicated that the population had a mean of nine nevi. Psoriasis was similar to that mentioned in other studies: about 1% in the United States of America. Atopic dermatitis (5.5%) is below the values for the northern population (> = 15%), but above that indicated for the English and American population. Nevertheless, the values of the present study were higher than those in the latter populations, when children until seven years old were considered. The Freixo de Espada à Cinta population above 60 years had solar keratosis in 30.6%, a value three times higher than the previous decade (10.9%); reference values were not found. Contrary to the literature, an association was not established between phototype and solar keratosis. Cutaneous tumours were observed in 0.7% of the cases.

Adolescent↗
PubMedDate not supplied

[Malignant peritoneal mesothelioma -- diagnostic and therapeutic difficulties].

Malignant Peritoneal Mesothelioma (MPM) is an uncommon tumour. Clinical presentation is indefinite and differential diagnosis with peritoneal carcinomatosis is difficult. It has a bad prognosis (survival of 6-12 months) due to the delay of the diagnosis and inefficacy of the conventional therapeutic. The authors present a case of MPM which was diagnosed over the investigation of ascitis. The laparoscopic peritoneal biopsy permitted the diagnosis. After systemic quimiotherapy, the patient is in partial remission at 42 months of follow-up.

Aged↗