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To investigate the clinical features of severe acute respiratory syndrome (SARS).Forty-one medical care workers (aged 23 - 55 years, with a average of 32 years; men/women = 8/32) who were admitted to our hospital and diagnosed with SARS during March and April, 2003 were retrospectively analyzed.Thirteen of all the patients were physicians and the rest were nurses. The disease was mainly transmitted through air droplet in a short distance, and overwork induced tiredness was involved in disease stimulation. Seventy-three percent of the patients presented fever as their first symptom. Ten patients complained inertia and myalgia. One patient showed no clinical symptoms, and bilateral infiltrates was found in his chest X-ray. Among the 41 cases, 6 (15%) were diagnosed as severe type. At the first week, the counts of white blood cells (WBCs), lymphocyte and platelets were (4.4 +/- 1.5) x 10(9)/L, 0.22 +/- 0.12 and (143 +/- 37) x 10(9)/L, which were significantly lower when compared with those at the 2nd to 4th week. Abnormal liver function was found in 27 cases (mostly with elevated serum ALT), with 70% occurred at the 3rd or 4th week. In terms of CT, 30 patients (73%) showed pathological changes in lungs, and bilateral lung involvement was found in 35.59%. Of 36 cases treated with steroids, 86% received middle or low dosage (80 - 240 mg/d). Artificial ventilation was used for twenty-seven patients, and air pipe mechanical ventilation was used for 1 case. Mortality in this study was 5%.Inertia and myalgia may be the earlier symptoms of health care workers with SARS include, which are parallel to CT manifestations. There is no objective index for the assessment of the severity of the disease at early stage. The medicine associated toxicities may be the main reason of liver lesions. damages. Middle or low dosage of steroid was reasonable to be used as early as possible.

To explore the effect of glucocorticoid in the treatment for severe acute respiratory syndrome (SARS).Clinical data of 70 patients with SARS admitted to Youan Hospital in Beijing during March to May, 2003 were analyzed.(1) Sixty-three of 70 cases of SARS recovered and seven cases died, with a case-fatality ratio of 10%. (2) Average length of hospital stay was 16.9 days for the all 70 cases, and 16.8 days for the 11 cases without glucocorticoid treatment, without statistical significance (F = 1.018, P = 0.39). (3) The other 59 cases were administered with 40 mg to 640 mg of methylprednisolone daily. (4) Average hospital stay was 15 days for the 23 cases with lower dose of 40 mg to 80 mg methylprednisolone daily, 18.5 days for the 27 cases with medium dose of 120 mg to 240 mg daily, and 17.9 days for the nine cases with higher dose of 320 mg to 640 mg daily (F = 1.018, P = 0.39).Earlier use of glucocorticoid therapy with suitable doses could alleviate their clinical symptoms, improve their clinical courses, and promote the absorbance of infiltration in their lungs on chest-X-ray films for the cases with SARS. However, current clinical data showed that glucocorticoid therapy could not shorten the length of hospitalization for the cases with SARS.