Annals of internal medicine
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In hospitalized patients, the commonest causes of acute insomnia are the effects of illness, environmental sleep disruption, medication, anxiety, and depression. Treatment should correct underlying medical disorders; reduce environmental sleep disruptions; and lower anxiety with psychological interventions, sedative or hypnotic medication, and relaxation training. Special clinical problems include chronic pain, delirium, and insomnia in the elderly.
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Monoclonal antibodies OKT3 (all T cells), OKT4 (T-helper/inducer), and OKT8 (T-suppressor/cytotoxic) were used to determine surface phenotypes of bronchoalveolar lavage and peripheral blood lymphocytes in patients with chronic hypersensitivity pneumonitis. Similar studies were done in asymptomatic pigeon breeders, patients with sarcoidosis, and nonsmoking controls. ⋯ Peripheral blood T-cell subsets were normal in all groups. Thus, most lung T lymphocytes in chronic hypersensitivity pneumonitis belong to the T8 + subset; the local cellular immune response in hypersensitivity pneumonitis and sarcoidosis are different; and the pattern of alveolitis, as determined by bronchoalveolar lavage, is not the sole determinant of lung impairment after exposure to hypersensitivity pneumonitis antigens.