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Pulmonary embolism is a sudden blockage in a lung artery. Blockage usually is caused by a blood clot that travels to the lung from a vein in the leg. Because pulmonary embolism almost always occurs in conjunction with deep vein thrombosis, most doctors refer to the two conditions together as venous thromboembolism. Pulmonary embolism can be life-threatening, but prompt treatment can greatly reduce the risk of death. Chronic dialysis for renal failure as an underlying condition increased over time (from 0 to 7 (7.4%), p ?=? 0.015) but no other predisposing conditions changed.
In Finland, the analysis on Pulmonary embolism got the result as the mean age of the patients increased with time (from 47.2 to 54.5 years, p ?=? 0.003). Twenty?five (7.7%) episodes were associated with intravenous drug use (IVDU), with a significant increase of these episodes after 1996 (from 0 to 19 (20%), p < 0.001). Viridans streptococci were the most common causative agents of IE during 1980–1994, but after that Staphylococcus aureus was the most common pathogen (p ?=? 0.015).