1561. Immunologic aspects of cardiovascular disease.
The current classification scheme of the diverse inflammatory cardiovascular diseases permits a clinical staging and facilitates prognostic assessment and therapeutic decision making. Ultimately, improvement in the classification of and definitive therapy for these conditions awaits better definition of the interaction among specific etiologic agents, host factors, and the immune system responsible for these diseases.
1568. Hypochondriasis and somatization.
Between 60% and 80% of healthy individuals experience somatic symptoms in any one week. About 10% to 20% of a random sample of people worry intermittently about illness. A substantial proportion of patients present physicians with somatic complaints for which no organic cause can be found. Patients who are hypochondriacal do not understand the benign nature of functional somatic symptoms and interpret these as evidence of disease. Hypochondriacal concerns range from common short-lived worries to persistent and distressing fears or convictions of having a disease. Hypochondriasis can be secondary to other psychiatric disorders (eg, melancholia or panic disorder), and hypochondriacal attitudes remit when the primary disorder is successfully treated. Patients with primary hypochondriasis are also anxious or depressed, but the fear of disease, or the false belief of having a disease, persists and is the most important feature of their psychopathology. There are substantial differences among hypochondriacal patients in their personalities and psychopathologies. Psychotherapy as well as psychotropic drugs are effective in the treatment of functional somatic symptoms. There are no adequate controlled studies on the value of psychotherapy in hypochondriasis; the recommended guidelines are based on uncontrolled studies of hypochondriasis and on controlled studies of the psychotherapy in similar disorders. The prognosis of functional somatic symptoms as well as that of hypochondriasis is good in a substantial proportion of patients.
1569. Care of pregnant women infected with human immunodeficiency virus.
The Centers for Disease Control and the American College of Obstetricians and Gynecologists have recommended that pregnant women who are at increased risk for acquired immunodeficiency syndrome be tested for antibodies to human immunodeficiency virus. When this recommendation is implemented, some clinicians who undoubtedly have had limited experience with patients infected with human immunodeficiency virus will be responsible for the care of pregnant women found to be asymptomatically infected with human immunodeficiency virus. There is, therefore, a need for information that will ensure that adequate counseling is provided and that appropriate medical and infection control measures are instituted. This article will review issues related to counseling and antepartum, intrapartum, and postpartum care of seropositive pregnant women.
1570. Aversion therapy. Council on Scientific Affairs.
来源: JAMA. 1987年258卷18期2562-6页
Aversion therapy is a series of techniques designed to reduce unwanted or dangerous behaviors. The most common applications of these techniques are to obesity, tobacco smoking, sexuality, oral habits, self-injurious and aggressive behaviors, and substance abuse. Most enthusiastic reports suffer from lack of control groups and control procedures. At this time, the best accepted application is for the treatment of chronic self-injurious behavior.
1571. Testosterone-secreting adrenal adenoma in a peripubertal girl.
作者: T C Kamilaris.;C R DeBold.;K J Manolas.;A Hoursanidis.;S Panageas.;J Yiannatos.
来源: JAMA. 1987年258卷18期2558-61页
A 15-year-old girl who presented with primary amenorrhea and virilization had an adrenocortical adenoma that secreted predominantly testosterone. To our knowledge, she is the first peripubertal and second youngest patient with a testosterone-secreting adrenal tumor described. Serum dehydroepiandrosterone sulfate and urinary 17-ketosteroid and 17-hydroxycorticosteroid levels were normal. A tumor was located by a computed tomographic (CT) scan and by uptake of 6-beta-[75Se] selenomethylnorcholesterol. Microscopic examination of the tumor showed typical features of an adrenocortical adenoma with no histologic features characteristic of Leydig cells. Postoperatively, her hirsutism regressed, she rapidly went through puberty, and regular monthly menstruation started four months later. Finding the source of testosterone in a virilized patient can be difficult. Eleven of the 14 previously described patients with testosterone-secreting adrenal tumors initially underwent misdirected surgery on the ovaries. Review of these cases revealed that results of hormone stimulation and suppression tests are unreliable and that these tumors are usually large. Therefore, CT scanning of the adrenal glands is recommended in all patients suspected of having a testosterone-secreting tumor. If the adrenal glands on CT scan are normal, then surgery directed at the ovaries can be undertaken. Adrenal and ovarian vein catheterization is rarely necessary.
1573. The differential diagnosis of depression. Relevance of positron emission tomography studies of cerebral glucose metabolism to the bipolar-unipolar dichotomy.1574. Preventive strategies in sexually transmitted diseases for the primary care physician. US Preventive Services Task Force.
This study provides the background recommendations of the US Preventive Services Task Force for interventions by primary care physicians to prevent sexually transmitted diseases. Rationale for and data supporting use of barrier methods, epidemiologic treatment, contact tracing, patient education, prophylactic antibiotics, and disease reporting are discussed. Specific recommendations include those for gonorrhea, syphilis, human immunodeficiency virus infection, enteric infections, human papillomavirus infection, herpes simplex virus infection, and Chlamydia trachomatis infection.
1575. Nutritional management in acute respiratory failure.
Nutrition in the intensive care unit is receiving increased attention. Patients with acute respiratory failure from primary lung disease are often initially malnourished, or become malnourished secondary to increased metabolic demands or inadequate nutritional support. Adverse effects of malnutrition on lung function include decreased respiratory muscle function, decreased ventilatory drive, and altered lung defense mechanisms. Nutritional support should be strongly considered if the patient has evidence of malnutrition by nutritional assessment or has a high likelihood of becoming malnourished by virtue of severe, prolonged critical illness. General nutritional goals in the intensive care unit include maintenance of body weight and lean body mass. Proper nutritional therapy includes assessment of adequate caloric requirements and appropriate protein, carbohydrate, and fat composition of the nutritional support. Nutritional therapy should be closely monitored with body weight and nitrogen-balance measurements.
1576. Fibromyalgia syndrome. An emerging but controversial condition.
The clinical manifestations, laboratory findings, and treatment results of 118 patients with fibromyalgia followed up by one investigator were compared with those of other recent reports. The history of this syndrome and recent efforts to establish diagnostic criteria and to understand underlying pathophysiologic mechanisms were studied. A practical, noninvasive office-based evaluation and conservative treatment approach were developed, determined by an understanding of the natural history of this common but controversial disorder.
1578. Leukocytes and the risk of ischemic diseases.
Predictive indexes for atherosclerotic risk are imperfect, suggesting that there are predictive factors not commonly considered. Such a factor may be the white blood cell (WBC) count. Epidemiologic studies have shown correlations between the WBC count and the risk of myocardial infarction and stroke. The risk of acute myocardial infarction is approximately four times as great in persons with WBC counts high in the normal range (greater than 9000/microL [9 X 10(9)/L]) as in persons with WBC counts low in the normal range (less than 6000/microL [6 X 10(9)/L]); only 50% to 65% of the excess risk of the high-count individuals is explainable by tobacco smoking (which covaries with WBC count). A high WBC count also predicts greater risk of reinfarction and of in-hospital death. Less rigorously studied, the constitutional neutropenia of Yemenite Jews appears to afford protection against atherosclerotic disease. Among WBC types, the strongest epidemiologic association has been with the neutrophil count. Such a predictive value of WBC count is plausible and satisfying, because WBCs make a major contribution to the rheologic properties of blood; alter adhesive properties under stress--including the stress of ischemia, enhancing their rheologic importance; and participate in endothelial injury, both acutely and chronically, by adhering to endothelium and damaging it with toxic oxygen compounds and proteolytic enzymes. Techniques newly developed or under development may allow us to refine the predictive value of the WBC count by combining it with measures of cell activation and/or activatability.
1579. US Preventive Services Task Force. Screening for breast cancer with breast self-examination. A critical review.
We reviewed evidence regarding breast self-examination (BSE) and screening for breast cancer. To our knowledge, no controlled prospective trial links BSE to lives saved from breast cancer. Compared with clinical breast examination and mammography, the estimated sensitivity of BSE is low (20% to 30%) and is lower among older women. The potential sensitivity of BSE should be higher because women can detect small lumps (0.3 cm) in silicone models. Instruction increases BSE frequency over the short term. Sensitivity also increases, but specificity decreases. The psychological effects of teaching and performing BSE are not yet clear. The cost of screening by BSE is unknown but depends on the accuracy of the test as well as the training method used. Breast self-examination has potential as a screening test for breast cancer, but many questions require scientific examination before this procedure can be advocated as a screening test for breast cancer.
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