美国食品药品监管局表示:电子烟或导致癫痫
The Food and Drug Administration just issued a special announcement about a new health risk that they worry may be linked to e-cigarettes: seizures. Since June 2018, the agency received what it called "a recent uptick" in reports where users describe having seizures that may be connected with their e-cigarette use. The FDA collects information about vape safety risks through their Safety Reporting Portal, where people who use e-cigarettes can share their experiences. Between reports via that portal and from poison control centers, the FDA counted 35 reports of seizures between 2010 and early 2019 that may be related to vaping. Most of those, it said, involved "youth or young adult users." We know that nicotine poisoning can cause seizures, like when people swallow vape juice. But the FDA doesn't know yet what the relationship between seizures and vaping is here, says FDA Commissioner Scott Gottlieb in a statement today. Some of these seizures might be unconnected, or some might be caused by inhaling massive amounts nicotine. That seems less plausible, says Peter Chai, a medical toxicologist at Brigham and Women's Hospital in Boston. "I think exposure (skin contact or oral) in children, or vaping exposure in younger individuals (adolescents through which we've seen a large increase in e-cig use), might be accounting or the increase in these seizures," he says in an email to The Verge. "To get enough nicotine in your body to cause seizures by smoking cigarettes is well-nigh impossible," says medical toxicologist Edward W. Boyer, an associate professor of emergency medicine at Brigham and Women's Hospital. But similar cases of nicotine-related seizures have been linked to eating it. Boyer thinks it's plausible that e-cigarettes could deliver enough nicotine to do the same. The truth is, there's not much data to go on. And for now, the FDA's Gottlieb says, "We can't yet say for certain that e-cigarettes are causing these seizures." |