Recently in Childhood health factors Category

Chronic kidney disease affects 26 million people in the United States.

Challenging prevailing wisdom that only children with end-stage kidney disease suffer physical, social, emotional and educational setbacks from their disease, research led by Johns Hopkins Children's Center shows that even mild to moderate kidney disease may seriously diminish a child's quality of life.

The findings, reported in the February issue of Pediatrics, suggest that earlier attention to quality-of-life issues in children with chronic kidney disease is needed.

"Even mild and moderate declines in kidney function may lead to serious physical, emotional, intellectual and social challenges," says lead investigator Arlene Gerson, Ph.D., a pediatric psychologist at Hopkins Children's.

Kidney Disease Screening is Needed

"What this means is we should be thinking about screening children for these challenges and intervening earlier than we once thought."

Recently diagnosed children who report learning problems may benefit from help before grades drop, researchers say, noting that children with chronic diseases currently do not qualify for special education until their scores decline dramatically.

Links Between Kidney Function and Quality of Life

In their study of 402 children, ages 2 to 16, with mild-to-moderate kidney disease, researchers analyzed the link between kidney function, disease severity, age of onset and disease duration, on the one hand, and physical, emotional, psychological and school functioning on the other.

The researchers also compared quality-of-life outcomes between healthy children and children with early-stage kidney disease. Children with mild-to-moderate kidney disease and their parents reported worse overall outcomes on standard quality-of-life questionnaires and worse outcomes on all quality-of-life factors.

Specifically, children with early-stage kidney disease scored on average 75 out of 100 on quality-of-life measures, compared to 83 out of 100 for healthy children. The difference was especially pronounced in school functioning, where children with early-stage kidney disease scored 64 out 100, compared to 80 out of 100 for healthy children.

How Children Cope with Kidney Disease

The study also found that the younger the child at the time of the diagnosis and the longer the child lived with kidney disease, the better the overall quality of life, a surprising finding, suggesting that as time passes children learn to cope better with their condition, the researchers say.

The researchers found that children with impaired growth and shorter stature, a common effect of their disease, had worse overall quality of life and poorer physical functioning, an indicator of the importance of early treatment.

Treatments for Children's Kidney Disease

"Timely and individually tailored treatment, be it with nutrition, salt supplements or growth hormones, if needed, can make a big difference. We cannot overemphasize the importance of early intervention in children with early stages of chronic kidney disease," says senior investigator Susan Furth, M.D. Ph.D., a pediatric nephrologist at Hopkins Children's.

The research is part of an ongoing 57-center study funded by the National Institutes of Health to study chronic kidney disease in children.

Heavy backpacks place a measurable strain on the spines of children, with heavier loads causing greater spinal strain and increased back pain, reports a study in Spine, January 2010 

My husband and I started getting concerned about heavy backpacks when our son was required to carry a very heavy backpack weighted down with a year's worth of books when he was in gradeschool.  It just didn't make sense.  It's taken a long time to get the research to prove the problems.  But it's here now, and solutions need to be found -- such as eBook readers.

The next step in convincing schools to "lighten the load" is to show how expensive back pain and back care is to our society.  Maybe business and government can prevent that long term impact on healthcare costs by providing children is an alternative to heavy books.

Test Results for Children's Back Health 

Magnetic resonance imaging (MRI) scans show compression of the spinal discs and spinal curvature caused by typical school backpack loads in children, according to Dr. Timothy Neuschwander of University of California, San Diego, and colleagues.

Backpacks' Effects on Disc Height and Spinal Curve Linked to Back Pain

The study included eight children, mean age 11 years. A special upright MRI scanner was used to image the children's spines in standing position--first with an empty backpack, then with increasing weights of 9, 18, and 26 lb. These weights represented about 10, 20, and 30 percent of the children's body weight.

Two key spinal measurements changed as the backpack load increased.

• Heavier weights caused compression of the intervertebral discs, which act as a cushion between the vertebrae (bones of the spine).
  
• Especially in the lower spine, the disc height became smaller (reflecting greater disc compression) at heavier backpack weights.
• Heavier loads were also associated with increased curvature of the lower spine, either to the right or the left.
  

Half of the children had a significant spinal curve even with the 18 lb weight. Most of the children had to adjust their posture to bear the 26 lb backpack load.

As backpack weight increased, so did the amount of pain reported by the children. At the heaviest load, the average pain score was nearly five (on a ten-point scale).

Parents are increasingly concerned about the heavy backpacks their children have to carry. The new study is the first to use imaging techniques to see how backpacks affect children's spines.

More than 90 percent of U.S. children carry backpacks, typically with weights equal to 10 to 22 percent of their body weight.

Carry Backpacks on One Shoulder or Two?

The results suggest that heavy backpacks cause compression of the spinal disks and increased spinal curvature, both of which are related to back pain reported by the children. Although the children were wearing the backpack straps over both shoulders when the MRI scans were performed, the researchers note that spinal curvature could be even greater if the backpack was carried over one shoulder--as many children do.

Lower Back Pain for Children -- Through Adulthood

"Low back pain in children may be worsened by discogenic [disc-related] or postural changes," Dr. Neuschwander and colleagues write. This could have long-term implications, as children with back pain are at increased risk of having back pain as adults. The researchers call for similar studies to examine the effects of heavy backpacks in children with existing back pain.

About Spine
Recognized internationally as the leading journal in its field, Spine is an international, peer-reviewed, bi-weekly periodical that considers for publication original articles in the field of spine. It is the leading subspecialty journal for the treatment of spinal disorders. Only original papers are considered for publication with the understanding that they are contributed solely to Spine. According to the latest ISI Science Citation Impact Factor, Spine ranks highest among subspecialty orthopedic titles. Visit the journal website at www.spinejournal.com