Biomedical subjects
Publications and source records attributed to A de Castro.
Parity is a factor that influences the axial length of the uterus. The knowledge of different measurements will help in the fitting of the IUD. In this paper, 657 cavimetries have been studied in relation to parity. A progressive increase of both the total uterine length and the endometrial cavity length have been observed in relation to parity, but none regarding the cervical length.
A comparative randomized trial was made of two intrauterine contraceptive devices: Nova-T and MLCu375. The IUDs were used by 637 and 606 women, respectively, for one year, unless the device was removed earlier. The reasons for IUD removal were analyzed after one year using the life-table method. Statistically significant differences were found in expulsion and removal for bleeding and/or pain rates.
A comparative randomized study was made of three intrauterine contraceptive devices: the Nova-T, MLCu250 Short and MLCu375. An endometrial biopsy was performed on the 25th day of the menstrual cycle before and after IUD insertion. The tissue obtained was analyzed to determine estrogen and progesterone receptor concentration and endometrial morphology patterns in IUD users. Both estrogen and progesterone receptors decreased proportionally to the increased amount of copper in the IUD. The histologic study showed changes in endometria relative to the amount of copper, but these changes were transitory and disappeared after a year of IUD use.
A case of a calcified aneurysm of the posterior cerebral artery is reported. Frequency, aetiology, pathology, diagnosis and treatment of these aneurysms are discussed.
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