Biomedical subjects
J Maia
Publications and source records attributed to J Maia.
[The epidemiology of proximal femur fracture at the Hospital da Horta (Azores)].
The aim of this study was to know the incidence of osteoporotic hip fracture in a defined area of the Azores. The catchment area included the islands of Faial, Pico, Flores and Corvo, with 11,617 subjects aged 50 or more: 5,373 males and 6,244 females. The time period of the survey was 1991 to 1993. Data was obtained from the records of the Orthopedic Department of Hospital Horta. Thirty seven fractures were diagnosed during the time survey: 12 in 1991, 13 in 1992 and 12 in 1993. The age-adjusted mean incidence rates of hip fracture for the population over 49 years old was 10.3/10,000: 5.6/10,000 in men and 14.4/10,000 in women. Most fractures occurred in women over the age of 65 years. The ratio of male to female cases was 1:3. The mean age of all patients was 77 +/- 8 years of age: 72 +/- 8 in males and 79 +/- 6 in females (p = 0.05). About 70 percent of these patients were treated surgically. The acute mortality rate was 8 percent and the mean age of the deceased patients, 82 +/- 6, was significantly higher than the mean age of the survivors, 73 +/- 6 (p = 0.01).
Prevalence of Candida albicans in vaginal fluid of asymptomatic Portuguese women.
Candida albicans is by far the most frequent agent of genital candidosis. We studied the prevalence of C albicans in normal asymptomatic women attending primary health care centers throughout Portugal. The overall prevalence of C albicans in the vaginal fluid of 1,004 women studied was 10.4%. Interestingly, the prevalence rates were lower (6.8%) in women taking combination oral contraceptives and higher (13.0%) in those using intrauterine devices.
Long-term follow-up of central serous retinopathy in 150 patients.
To study the evolution of the retinal pigment epithelial lesions in the central serous retinopathy, the authors studied 150 patients with ages between 20 and 49 years at the first examination, during periods varying between 6 months and 14 years. It was found a greater incidence of the disease in the males (83.3%); bilaterality in 23.3%; only one point of leakage in 62.7%; 3 different types of diffusion (inkblot 71.4%; mushroom 23.8%; with serous pigment epithelial detachment 4.9%). The final visual acuity was < 20/40 in a quarter of the cases and the frequency of the recurrences was 30%. The laser treatment did not influence the recurrences. In 50 patients with a follow-up superior to 3 years, 8 (16%) developed lesions similar to those described as diffuse retinal pigment epitheliopathy with visual field defects and subnormal EOG. Actuarial calculus suggests that 50% of the patients may get the most severe and extensive form of the disease after 12 years of evolution. The results allow to conclude that the diffuse retinal pigment epitheliopathy is only the terminal state of the most severe cases of central serous retinopathy.
Spontaneous abortions after intraperitoneal or intrauterine insemination.
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Hepatic abscess in Crohn's disease.
Hepatic abscess is a rare complication of Crohn's disease. The present report describes an additional case diagnosed by CT scanning and successfully treated by surgery. Recognition of this complication is important because early therapy could improve the prognosis.
Correlations between radiological heart size and the vectocardiogram in patients with left anterior hemiblock.
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Skeletal maturity and socio-economic status in Portuguese children and youths: the Madeira growth study.
BACKGROUND: Skeletal maturity is used to evaluate biological maturity status. Information about the association between socio-economic status (SES) and skeletal maturity is limited in Portugal. AIMS: The aim of this study is to document the skeletal maturity of youths in Madeira and to evaluate variation in maturity associated with SES. SUBJECTS AND METHODS: The study involved 507 subjects (256 boys and 251 girls) from the Madeira Growth Study, a mixed-longitudinal study of five cohorts (8, 10, 12, 14 and 16 years of age) followed at yearly intervals over 3 years (1996-1998). A total of 1493 observations were made. Skeletal age was estimated from radiographs of the hand and wrist using the Tanner-Whitehouse 2 method (TW2). Social class rankings were based on method. Five social rankings were subsequently grouped into three SES categories: high, average and low. RESULTS: Median for the radius, ulna and short finger bones (RUS scores) in the total sample of boys and girls increased curvilinearly across age whereas median for the 7 (without pisiform) carpal bones (Carpal scores) increased almost linearly. The 20-bone maturity scores demonstrated distinctive trends by gender: the medians for boys increased almost linearly while the medians for girls increased curvilinearly. SES differences were minimal. Only among children aged 10-11 years were high SES boys and girls advanced in skeletal maturity. Madeira adolescents were advanced in skeletal maturity compared with Belgian reference values. CONCLUSION: The data suggests population variation in TW2 estimates of skeletal maturation. Skeletal maturity was not related to SES in youths from Madeira.