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Biomedical subjects

F Sanchez

Publications and source records attributed to F Sanchez.

66 records · Page 4Linked to original sources
PubMed1977

Idiopathic rupture of the iliac vein.

Idiopathic rupture of large veins is very rare. There has been one report in the Portugese literature of such an instance involving the iliac vein. Our patient was an elderly woman in whom evidence of intra-abdominal hemorrhage developed. There was no clinical evidence of trauma. At laparotomy a large retroperitoneal hematoma secondary to an 8-mm tear in the left common iliac vein was found. The tear occurred adjacent to where the right common iliac artery passes over the vein. Repair was followed by uneventful recovery. Results of the pathological examination showed nonspecific information.

Aged↗
PubMed1977

[Not Available].

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History of Pharmacy↗
PubMed1976

Clinical use of the LH-RH in assessing gonadotropic reserve in children with idiopathic precocious puberty, premature thelarche and premature adrenarche.

Serum LH and FSH were assayed in 31 girls with normal pre puberty, precocious puberty, premature thelarche, and premature adrenarche, aged 2 to 9 years. The effect of synthetic luteinizing hormone-releasing hormone (LH-RH) on serum gonadotropins was evaluated in eleven of them. In all girls with precocious puberty, serum LH was increased up to high levels. The mean releasable LH in two girls with idiopathic precocious puberty was significantly greater than in normal prepubertal or pubertal children. Basal FSH in children with precocious puberty was within the limits of normal prepuberal children, and FSH secretion in response to LH-RH was not significantly greater than in the group of normal prepubertal and pubertal girls. In children with premature thelarche and premature adrenarche, basal levels of LH and FSH, as well as gonadotropin response to LH-RH were in the prepubertal range. These preliminary results show that the LH-RH test might be of clinical value in differenitating abnormal puberal development.

Age Factors↗
PubMed1976

Inhibition of complement-dependent lymphocyte rosette formation by sera of patients with chronic glomerulonephritis.

It has been demonstrated that activated C3 products might bind to lymphocyte C3 receptors and inhibit subsequent complement-dependent lymphocyte rosette formation. Sera from patients with various types of chronic glomerulonephritis (GN) have been tested in a complement-dependent rosette inhibition assay using normal donors' lymphocytes as reacting cells. Control subjects consisted of healthy donors and patients with miscellaneous renal and general diseases. Most sera of membranoproliferative GN and of systemic lupus erythematosus, and two-thirds sera of focal glomerolosclerosis patients, significantly inhibited rosette formation. Only 15-40 percent sera of patients with other types of GN were inhibitory. Serum inhibiting activity usually correlated with low serum C3 level (P less than 0.0005), although inhibition could be observed with normal serum C3. However, no correlation was found between a patient's own complement-dependent lymphocyte rosette count and his serum inhibitory activity. These results extend previous findings and suggest that the complement-dependent rosette inhibition assay can be used routinely to detect serum activated complement components either free or bound to immune complexes.

Chronic Disease↗
PubMed1975

Myocardial ultrastructural changes during extracorporeal circulation wtih anoxic cardiac arrest and its prevention by coronary perfusion. Experimental study.

This experimental work has been carried out with the aim of studying the ultrastructural myocardial changes caused by prolonged anoxic cardiac arrest during cardiopulmonary bypass, and their prevention by means of two different techniques of coronary perfusion--systemic-pressure continuous and low-pressure intermittent perfusion. After 30 minutes of cardiac anoxia, the ultrastructural changes of the myocardial cell were reverted to normal by coronary perfusion; when anoxic cardiac arrest was prolonged up to 60 minutes there was severe myocardial damage, with marked mitochondrial changes and dehiscence of intercalated discs, which persisted in spite of restoring coronary flow. These morphological data were in accordance with the fact that no dog which underwent anoxic cardiac arrest for 60 minutes recovered. Both intermittent and continuous coronary perfusion were effective in preventing anoxic damage; cardiac muscle cells were better preserved by low-pressure intermittent perfusion than by systemic-pressure continuous perfusion, which caused intracellular and intramitochondrial oedema.

Animals↗
PubMedDate not supplied

[Introduction of a disposable dermatome].

Skin grafts in vascular pathology, which were until now the prerogative of surgeons when the technique is complex and requires specific devices, are currently becoming available to all mainly with the use of the disposable Sanchez dermatome, at a very reasonable cost. This dermatome is characterized by a sharp edge which is only but a common razor blade, easy to get. Its use is so simple that it may be used even without a large experience of the grafting technique. The authors describe their technique in ambulatory. They point out its efficacy, its simpleness, its reduced cost for the patient as well as for social bodies. They insist on: preparation of the ulcer bed, the graft itself, the treatment of the cause. "A closed ulcer is not a cured ulcer".

Humans↗