Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0024312 (lymphopenia)
 4,859 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Hong Kong has been severely affected by severe acute respiratory syndrome (SARS). Contact in households and health-care settings is thought to be important for transmission, putting children at particular risk. Most data so far, however, have been for adults. We prospectively followed up the first ten children with SARS managed during the early phase of the epidemic in Hong Kong. All the children had been in close contact with infected adults. Persistent fever, cough, progressive radiographic changes of chest and lymphopenia were noted in all patients. The children were treated with high-dose ribavirin, oral prednisolone, or intravenous methylprednisolone, with no short-term adverse effects. Four teenagers required oxygen therapy and two needed assisted ventilation. None of the younger children required oxygen supplementation. Compared with adults and teenagers, SARS seems to have a less aggressive clinical course in younger children.
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PMID:Clinical presentations and outcome of severe acute respiratory syndrome in children. 1278 93

In March 2003, an outbreak of severe acute respiratory syndrome started in Hong Kong. A 57-year-old woman had a typical presentation, including fever, non-productive cough, malaise, lymphopenia, and raised liver aminotransferases. The clinical course and successful treatment with convalescent plasma, ribavirin, and corticosteroids are discussed.
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PMID:Treatment of severe acute respiratory syndrome with convalescent plasma. 1290 27

Severe acute respiratory syndrome is a new disease that is highly contagious and is spreading in the local community and worldwide. This report is of a hospital medical officer with severe acute respiratory syndrome. He presented with sudden onset of fever, chills, myalgia, headache, and dizziness in early March 2003. He developed progressive respiratory symptoms and bilateral pulmonary infiltrates during the second week of his illness. Blood tests showed lymphopenia, mild thrombocytopenia, and prolonged activated partial thromboplastin time with normal d-dimer level. His chest condition gradually responded to ribavirin and corticosteroids, and serial chest X-ray showed resolving pulmonary infiltrates. The importance of early diagnosis lies in the potential for early treatment, leading to better response.
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PMID:Severe acute respiratory syndrome in a doctor working at the Prince of Wales Hospital. 1277 57

Severe Acute Respiratory Syndrome (SARS) is a new infectious disease that, in the short period between 1 February and 24 April 2003, has been diagnosed in more than 4000 patients. Its origin was traced to Guandong, a province in southeast China. The culprit organism was identified as a new coronavirus. The clinical presentation is unspecific and includes fever, respiratory symptoms, lymphopenia and pulmonary infiltrates on X-ray. Essential steps to prevent further dissemination of the virus are rapid identification, and treatment in an isolation unit. Despite all the international efforts and the rapid progress in the investigation of SARS coordinated by the World Health Organization (WHO), the epidemic has not yet been brought under control.
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PMID:[SARS--the facts. Transmission, diagnosis and managing suspected cases]. 1281 76

The mysterious severe acute respiratory syndrome (SARS) that has originated from the southern Chinese province of Guangdong appears to be a major public health threat and medical challenge. Laboratory studies of SARS patients in a number of countries identified the etiologic agent being a novel member of coronaviridae. High RNA concentrations of this virus in sputum make it as a highly infectious agent. Low concentrations of viral genome are also detectable in feces. Coronaviruses are ubiquitos. They cause disease in many animals including pigs, cattle, dogs, cats, and chickens. These viruses have been associated with upper respiratory infections and sometimes pneumonia in humans. SARS presents with fever, cough, malaise, dyspnea, and hypoxemia. Chest radiographs from affected regions are associated with progressive airway disease. Clinical laboratory features of SARS include lymphopenia, thrombocytopenia, and elevated lactate dehydrogenase levels. Currently, there is no FDA approved pharmacologic treatment for SARS. To date, no convincing clinical data is available for treatment of SARS with ribavirin. While there are some controversies about the use of systemic corticosteroids, Martin et al, in this issue of MSM, present their views on the use of pentoxyfylline (PTX) as a potential agent to be considered for SARS treatment. Finally, our analytical approach to the risks of SARS will certainly enable us to
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PMID:Severe acute respiratory syndrome. 1282 56

Severe acute respiratory syndrome (SARS) has recently recognized as a new human infectious disease. A novel coronavirus was identified as the causative agent of SARS. This report summarizes the hematological findings in SARS patients and proposes a hypothesis for the pathophysiology of SARS coronavirus related abnormal hematopoiesis. Hematological changes in patients with SARS were common and included lymphopenia (68% - 90% of adults; 100% of children, n = 10), thrombocytopenia (20% - 45% of adults, 50% of children), and leukopenia (20% - 34% of adults, 70% of children). The possible mechanisms of this coronavirus on blood system may include (1) directly infect blood cells and bone marrow stromal cells via CD13 or CD66a; and/or (2) induce auto-antibodies and immune complexes to damage these cells. In addition, lung damage in SARS patients may also play a role on inducing thrombocytopenia by (1) increasing the consumption of platelets/megakaryocytes; and/or (2) reducing the production of platelets in the lungs. Since the most common hematological changes in SARS patients were lymphopenia and immunodeficiency. We postulate that hematopoietic growth factors such as G-CSF, by mobilizing endogenous blood stem cells and endogenous cytokines, could become a hematological treatment for SARS patients, which may enhance the immune system against these virus.
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PMID:The effect of SARS coronavirus on blood system: its clinical findings and the pathophysiologic hypothesis. 1284 98

In a cohort of 38 patients with severe acute respiratory syndrome (SARS), we observed leukopenia in 47% of patients, lymphopenia in 84%, and T lymphopenia in 95%. CD4(+) T lymphocyte levels were reduced in 100% of patients, CD8(+) T lymphocyte levels were reduced in 87%, B lymphocyte levels were reduced in 76%, and natural killer cell levels were reduced in 55%. Our data suggested that these patients' immune systems were impaired during the course of SARS. The absolute counts of lymphocyte subsets demonstrated a clinical significance for patients with SARS.
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PMID:Expression of lymphocytes and lymphocyte subsets in patients with severe acute respiratory syndrome. 1499 42

From April 18 to May 31, 2003, 46 patients with probable severe acute respiratory syndrome were admitted to the negative-pressure isolation rooms of Mackay Memorial Hospital in Taipei, Taiwan. Their demographic, clinical, laboratory, and radiologic characteristics and clinical outcomes were analyzed. There were 15 males and 31 females, in this cohort, 13 of whom were healthcare workers. The latter included 6 hospital staff and 7 medical personnel transferred from other hospitals. The most common symptoms were fever (100%, 46/46), cough (72%, 33/46), shortness of breath (46%, 21/46), and diarrhea (39%, 18/46). Other common findings were lymphopenia (57%, 26/46), thrombocytopenia (39%, 18/46), elevated lactate dehydrogenase (63%, 29/46), and elevated creatine kinase (24%, 11/46). A total of 7 patients (15%) required mechanical ventilation, and 8 (17%) died. Advanced age was an independent significant risk factor for death. Fever followed by rapidly progressive respiratory compromise led to significant morbidity and mortality in this cohort.
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PMID:Severe acute respiratory syndrome in a medical center in Taipei. 1458 59

Severe acute respiratory syndrome (SARS) is a highly contagious and typically rapidly progressive form of atypical pneumonia, which spread from Asia to many parts of the world in early 2003. Clinical diagnosis of SARS requires the presence of unremitting fever and progressive pneumonia despite antibiotic therapy, particularly in the presence of lymphopenia and raised transaminase levels. We report the case of a woman who had undergone a successful allogeneic bone marrow transplant for acute myeloid leukemia. She presented initially with fever and a normal chest radiograph. Her indolent clinical course of SARS was punctuated by resolution of fever, but there was progressive radiologic deterioration and increasing serum antibody titer against SARS coronavirus. Treatment with oral prednisolone and ribavirin normalized her lymphopenia, altered transaminases, chest radiograph and high-resolution computed tomography appearances rapidly. Our experience should alert other clinicians in recognizing this atypical indolent presentation of SARS, to protect health care workers and the community at large and to ensure that these patients are properly treated.
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PMID:An indolent case of severe acute respiratory syndrome. 1469 7

Severe acute respiratory syndrome (SARS) is a highly infectious disease with a significant morbidity and case fatality. The major clinical features include persistent fever, chills/rigor, myalgia, malaise, dry cough, headache and dyspnoea. Less common symptoms include sputum production, sore throat, coryza, dizziness, nausea, vomiting and diarrhoea. Older subjects may present with decrease in general well-being, poor feeding, fall/fracture and delirium, without the typical febrile response. Common laboratory features include lymphopenia with depletion of CD4 and CD8 lymphocytes, thrombocytopenia, prolonged activated partial thromboplastin time, elevated D-Dimer, elevated alanine transminases, lactate dehydrogenase and creatinine kinase. The constellation of compatible clinical and laboratory findings, together with the rather characteristic radiological features especially on HRCT and the lack of clinical response to broad-spectrum antibiotics, should quickly arouse suspicion of SARS. The positivity rates of urine, nasophargyngeal aspirate and stool specimen have been reported to be 42%, 68% and 97%, respectively, on day 14 of illness, whereas serology for confirmation may take 28 days to reach a detection rate above 90%. Recently, quantitative measurement of blood SARS CoV RNA with real-time RT-PCR technique has been developed with a detection rate of 80% as early as day 1 of hospital admission but the detection rates drop to 75% and 42% on day 7 and day 14, respectively.
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PMID:SARS: clinical features and diagnosis. 1501 29


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