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[Pulmonary Thromboembolism: Clinical Characteristics and Diagnostic and Therapeutic Approaches].

PubMed(1989)

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摘要
In the present study the variability and diagnostic meaning of clinical features and common laboratory investigations were evaluated in a series of 220 patients with pulmonary thromboembolism (PTE) diagnosed by clinical means. The patients were classified into the two following groups: group I consisted of 102 critical patients admitted to an intensive care unit; group II consisted of 118 less-severely ill patients admitted to an ordinary hospital ward. Although clinical and laboratory features were nonspecific, the association of thrombotic risk factors in 88% of the patients permitted us to suspect the diagnosis of PTE within the initial three days in 71%. Chest radiogram was normal in 48%, ECG was normal in 32%, and contrast phlebography did not demonstrate phlebothrombosis in 16.4% of cases. The presumptive diagnosis was earlier (4 +/- 2 days) in group I than in group II patients (8 +/- 5 days) (p less than 0.01), and there was a significantly higher frequency of thoracic symptoms, hypoxemia, hypocapnia and radiologic and electrocardiographic abnormalities in group I patients. Chest radiogram and ECG were normal in only a small minority of these patients (9 and 7%, respectively). Overall mortality rate was 9.4% (20 patients, 14 from group I and 6 from group II). In 10 patients, all from group I, death took place within the first 72 hours after the diagnosis.
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