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Time Spent in the OR May Be Linked to Blood Clots, Study Shows

Posted 3 Dec 2014 by

WEDNESDAY, Dec. 3, 2014 – Longer surgery times may increase a patient's risk of dangerous blood clots, a new study suggests. Blood clots are associated with more than 500,000 hospitalizations and 100,000 deaths a year, according to background information in the study. Researchers analyzed data from more than 1.4 million people who had surgery under general anesthesia at 315 U.S. hospitals between 2005 and 2011. Of those patients, 0.96 percent developed a blood clot after surgery, 0.71 percent developed a deep vein thrombosis (a blood clot in the veins deep in a limb, usually the legs), and 0.33 percent developed a pulmonary embolism, a blood clot that travels to the lungs. Patients who had the longest operations were 1.27 times more likely to develop a blood clot than those who had average-length surgeries. The risk was lowest among patients who had the shortest surgeries, the ... Read more

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