Rapid spontaneous resolution of acute subdural hematoma and HIV related cerebral atrophy: case report.

BACKGROUND: The natural history of a traumatic acute subdural hematoma is usually interrupted by its prompt surgical removal. Rapid spontaneous resolution within 48 hours, although infrequently reported, may be, underestimated and demonstrates a benign course of this condition. To our knowledge, this is the first case of rapid spontaneous resolution of an acute subdural hematoma in a patient with HIV encephalopathy and cerebral atrophy. METHODS AND RESULTS: This 27-year-old man, an intravenous drug user with AIDS-related complex and HIV encephalopathy, suffered an acute subdural hematoma due to head injury in a car accident. The hematoma spontaneously resolved within 12 hours, resulting in a favorable outcome with nonoperative treatment. CONCLUSIONS: AIDS related cerebral atrophy may not only have predisposed the patient to the development of an extracerebral collection, but may have also favorably influenced the spontaneous resolution of the hematoma. The mechanism of the hematoma resolution and the influence of HIV related cerebral atrophy is discussed.

Evolução da síndrome de imunodeficiência adquirida (AIDS - SIDA) na clínica odontológica. O papel do cirurgião-dentista / The evolution of the acquired immunodeficiency syndrome in dental clinc and the dental team role

Evolução da infecção pelo HIV na clínica odontológica, mostrando a sua transmissão e seus diferentes estágios. A epidemiologia no mundo e Brasil, em especial, na clínica odontológica, o papel do cirurgião-dentista, discutindo os seus procedimentos, diante dos pacientes e suas manifestações bucais como a sua própria biossegurança durante o trabalho

Disseminated tuberculosis in the acquired immunodeficiency syndrome era.

To assess the influence of human immunodeficiency virus type 1 (HIV)-induced immunodeficiency on the clinical, radiographic, and pathologic features of disseminated tuberculosis (TB), we studied 79 patients presenting in 1984 through 1987 with miliary or focal disseminated disease due to Mycobacterium tuberculosis, as well as 4 additional non-HIV patients diagnosed after 1987. Clinically defined acquired immunodeficiency syndrome (AIDS) or AIDS-related complex (ARC) was present in 51 (Group 1). A total of 20 had TB unrelated to HIV disease (Group 2). The remaining 12 were excluded because the role of HIV could not be determined. Clinical features were similar between groups aside from younger age; lower hemoglobin, total leukocyte, lymphocyte, and platelet counts; and more frequent tuberculin anergy (90 versus 40%) in AIDS/ARC patients (p less than or equal to 0.03). Chest radiographs showed a miliary pattern in about half of each group. Pleural effusion occurred only in AIDS/ARC patients (24%, p = 0.02), but intrathoracic lymphadenopathy was present in about a third of each group. Tissue biopsies (n = 70) usually revealed necrotizing granulomatous inflammation in each group, with a tendency to greater necrosis and more numerous acid-fast bacilli in Group 1. Granulomas were usually poorly formed in AIDS/ARC patients (59 versus 18%, p = 0.01). Autopsy of 9 AIDS/ARC patients with overwhelming miliary TB revealed a "nonreactive" histologic pattern with poorly organized or absent granulomas, extensive necrosis, and numerous bacilli. HIV-related disseminated TB causes a major constitutional illness with a high short-term mortality (25%).(ABSTRACT TRUNCATED AT 250 WORDS)

[Are the HIV viruses really the causal agents of AIDS?]. / Son en verdad los VIH los agentes causales del SIDA?

Since the discovery and characterization of the Human Immunodeficiency Viruses (HIV) it seems to be firmly established that these infectious agents are the cause of AIDS. Since a few years ago, however, we and other investigators have noted a number of unexplained facts that cast many doubts over the simplistic hypothesis of a unique retroviral etiology of AIDS. It is likely that many other factors act synergistically to induce immunosuppression in these patients i.e.: a) repeated and chronic infections; b) use of drugs; c) alloantigenic stimulation by blood and/or semen; d) anesthetics; e) antibiotics and f) malnourishment. The role of these etiologic cofactors is critically analyzed in view of recent and old literature. Other alternative hypothesis for the etiology of AIDS, such as those proposed by Root-Bernstein and Duesberg are discussed.