New Research on IV Infection Risk

Each year, about 200 million adults needing medical intervention in the United States have an IV inserted into their arm to deliver vital fluids, nutrients and medicines. These peripheral intravenous catheters play a critical role in a patient’s care, but a small percentage of patients can acquire serious bloodstream infections. New research by a Rhode Island physician is putting a spotlight on such complications as well as the need to follow best practice for prevention. 



Peripheral IVs “are some of the most commonly utilized medical devices in healthcare settings” and they could be responsible for “several thousand bloodstream infections each year in the United States,” said Leonard Mermel, DO, an infectious disease physician and researcher with the Lifespan health system in Rhode Island.

Mermel recently conducted a systematic review of numerous studies on infections relating to peripheral intravenous catheters.  He knew that a great deal of attention has been focused over the past couple of decades on the risks of central venous catheters (central lines), which are typically inserted into the neck or chest of a patient to deliver medicine into a vein near the heart. Infections from these are now monitored closely in the United States and many other countries.

But Mermel thought more needed to be gleaned from existing research on the risks of peripheral IVs, which are inserted into a vein near the surface of the skin, typically in the arm.

He found that of the approximately 200 million peripheral venous catheters inserted into adult patients in the United States every year, the incidence of bloodstream infection is about 0.18 percent (i.e., close to two such infections for every 1,000 of these catheters inserted).

As a result, he said, “There are likely many patients who develop bloodstream infections (i.e. blood poisoning) from these devices.”

Mermel found that the risk of infection from central lines is 2 to 64 times…

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