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February 14th, 2011
06:09 PM ET

Testing was lacking in most recalled medical devices

Most of the 113 medical devices recalled by the FDA from 2005 to 2009 for serious or life-threatening hazards were not subjected to the Food and Drug Administration's more stringent approval process, known as "PMA", or premarket approval, according to a review of the FDA's recall data.

Instead, they were cleared using the 510(k) process, which is less extensive and does not require clinical testing. For consumers, that means some cleared products including artificial hip joints, heart valves, and automated external defibrillators (AEDs) were marketed and used on patients without being tested beforehand.

"Like most Americans, I just assumed that medical products could not be sold in this country unless they were proven safe and proven effective in carefully conducted scientific studies in human beings," says Diana Zuckerman, president of the National Research Center for Women and Families. "And it's just not true."

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ADHD brains may have 'faulty brakes'
February 14th, 2011
05:37 PM ET

ADHD brains may have 'faulty brakes'

Much news about attention-deficit hyperactivity disorder has focused on learning and attention, but here's another important part of this condition: Impairment in motor function.

Two new studies in the journal Neurology explore how brain functions relating to motor control may explain certain ADHD symptoms. They support previous research showing that kids with ADHD have motor control problems and offer new potential targets for treatment in the brain's inhibitory systems.

“If we can understand the systems that are involved, because there’s probably not just one, then we can identify groups of kids that have these symptoms, quantitatively and reliably, and use that information to understand who’s at the highest risk of a bad adult outcome,” said Dr. Donald Gilbert, study co-author and director of the Movement Disorder Clinic and Tourette's Syndrome Clinic at Cincinnati Children's Hospital Medical Center.

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February 14th, 2011
08:40 AM ET

How can I make my mammogram hurt less?

Every weekday, a CNNHealth expert doctor answers a viewer question. On Mondays, it's pediatrician Dr. Jennifer Shu.

Question asked by Paula of San Diego, California:

I had my first mammogram yesterday and my breasts are still really sore. I am fairly small-chested, and the tech said that usually makes it hurt more. What can I do for the pain now, and is there anything I can do to make it hurt less next time?

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February 14th, 2011
12:01 AM ET

Pediatricians, parents warned on energy drink dangers

They claim to give you that extra boost, but recent studies have shown that energy drinks containing large amounts of caffeine and other stimulants, can actually cause major health problems in children, teens and young adults. In fact, according to the American Association of Poison Control Centers, of the 5,448 U.S. caffeine overdoses reported in 2007, 46% occurred in those younger than 19 years. Now a new report in the journal of Pediatrics warns parents, and doctors that these drinks could be especially dangerous to children with ADHD, diabetes, sleep issues and eating disorders.

Tips for managing diabetes

Doctors from the University of Miami School of Medicine say that  although caffeine can improve attention spans, it also increases blood pressure and disrupts sleep patterns in young people. And scientists have found the attention span of kids who consumed these drinks on a daily basis eventually decreased. So did their heart rates over the long run, while their blood pressure numbers increased, which could put unnecessary pressure on the heart. Researchers note that could be dangerous for children who are on other medications

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About this blog

Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.

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