Posts in Science
Longer Surgery, Greater Risks

Under the American College of Surgeons’ National Surgical Quality Improvement Program from 2005 to 2011, more than 1.4 million patients undergoing surgery at US hospitals were observed to see if lengthier surgery durations would affect the risk of developing a blood clot, or venous thromboembolism (VTE). We’ve known that being bound to a hospital bed (common after surgery) is a risk factor for VTEs, but this is the first evidence that surgery duration is a risk factor as well.

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Sequencing Matters for Vaccine

An interesting paradigm is developing in the vaccine literature between specific and non-specific effects of vaccination. Specific vaccine effects give disease protection and are independent of the order in which vaccines are given. Non-specific effects refer to the effects a vaccine might have on the overall immune system, which seems to depend on the order of vaccination.

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