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Biomedical subjects

S Juárez Alonso

Publications and source records attributed to S Juárez Alonso.

12 recordsLinked to original sources
PubMed1991

[The parenteral drug addict in the emergency service].

Clinical and epidemiological features of intravenous drug addicts (IVDA), who attended the emergency department between 1984 and 1988, were studied. The number of cases treated over these 4 years had increased three-fold (256 vs 724). The median age had increased by 3 years (p less than 0.01). The sex ratio had not changed. A third of the cases knew that they were HIV-seropositive in 1988. The main reason for consultation in 1984 was overdosage and in 1988 it was fever. The rate of admission was similar in both years (around 21%). There was a significant increase in admissions caused by respiratory diseases in 1988 (p less than 0.0001) and a significant decrease of admissions caused by overdosage (p less than 0.001).

Age Factors↗
PubMed1982

[Leukocyte adherence inhibition test in tumor patients].

The leukocytes from cancer patients lose the capacity to adhere themselves to the tube glass surface when they are incubated with antigenic extracts of neoplasms of the same histologic type, as observed employing the leukocyte adherence inhibition (LAI) test. The authors confirm that the LAI test is organ-specific when primary tumors are employed as a source of antigens. Contrarily, the LAI test does not give a useful diagnostic information when antigens from metastases are employed. On the other hand, the practice of cell counts at 20 minutes intervals, shows that we are not dealing with a true adherence inhibition, but with a massive initial adherence of the leukocytes to the glass surface, followed by the further detachment of the cells. The phenomenon depends on cell concentration and it is not observed when less than 1000 leukocytes mm2 are used.

Antigens, Neoplasm↗
PubMed1980

[Carcinoid tumor of the thymus gland with multiple metastases. Report of a case (author's transl)].

A pregnant woman in the 29th, week of gestation was admitted to the hospital with mediastinal pressure symptoms. A tentative diagnosis of lymphoma was made and the patient was given chemotherapy (vincristine, ciclophosphamide and adriamycin) plus radiotherapy, but no objective response was obtained. During the postoperative period (cesarean section) the patient developed clinical symptoms of muscular paralysis of unknown etiopathogenesis. Biopsy of a cervical lymph node showed histological pattern of tumor of the APUD system (chemodectoma). Multiple metastases appeared in the lungs, bones, brain, heart and ovaries in spite of treatment with various chemotherapeutic agents (vincristine, actinomycin D, CCNU and DTIC). Necropsy revealed the existence of a large tumor of the thymus gland, which histopathologic structure resembles to that of carcinoid. Ultrastructural examination showed abundant granules of neurosecretion confirming an APUD tumor. Cushing-like appearance of the patient was attributed "a posterior" to ACTH released by the tumor. A review ofthe clinical features, endocrine function and anatomical localizations of carcinoid tumors is included.

Adult↗