Navigation Links
For children with sickle cell disease, lung disease is part of the package
Date:5/18/2008

ATS 2008, TORONTOChildren with sickle cell disease (SCD) have a significantly sharper decline in lung function with age when compared to other children of the same race and age. Furthermore, that loss of function appears to be linked to a restrictive rather than obstructive pattern, contrary to previous research that has focused on obstructive or asthma-like patterns in loss of lung function with sickle cell disease. The research will be presented at the American Thoracic Societys 2008 International Conference in Toronto on Sunday, May 18.

The restrictive pattern of decline is supportive of early injury or inflammation resulting in progressive changes in lung volumes across age, said lead researcher Joanna MacLean, M.D., of the department of respiratory medicine at Childrens Hospital at Westmead in Australia. We expected that children with sickle cell disease would show greater loss of lung function than other children, but this had never been quantified, nor was the pattern of decline clear.

To determine the patterns of loss of lung function, the researchers analyzed 1,357 lung function results that were completed between January 1989 and January 2005 on from 413 children with SCD during routine sickle cell clinical visits. Lung volume measurements were also included for 1,129 records.

They found that over time, there was a significant decline in lung function shown by a decline in the percent predicted values for all spirometry measures except FEV1/FVC ratio, a marker of airway obstruction. The pattern of decline of lung volume confirmed a restrictive pattern with an average loss of 2 percent per year of total lung capacity.

This is the first study to examine loss of lung function in children with sickle cell disease over time in a large number of children. Most studies of lung function in children with sickle cell disease are either cross-sectional or have limited longitudinal follow-up, said Dr. MacLean. The strength of our study is that data was collected from a large number of children with sickle cell disease across childhood.

They also found that of children with SCD, hemoglobin-beta genotype SS was associated with an increased risk of loss of lung function across childhood. The hemoglobin SS genotype is more common than hemoglobin SC genotype (one in 600 versus one in 800 life births) and is associated with more complications than hemoglobin SC disease. This pattern of decline in lung function may simply reflect a greater risk of lung injury in this group, but alternatively may also suggest differences in response to lung injury or lung repair with different genotypes of sickle cell disease.

Our findings confirm that lung disease in SCD begins in childhood, explained Dr. MacLean. Using statistical modeling, we are able to predict the rate of decline of lung function. These results can be used as a baseline against which results from intervention studies can be compared.

While changes in treatment over the last 20 years have led to a significant reduction in overall mortality and morbidity for children with SCD, prospective longitudinal studies focusing on the identification and treatment of sickle cell associated lung disease are needed to continue to improve the long term health of children and adults with sickle disease.

The results of this project emphasize the need for further investigation into the pathophysiology and treatment of lung disease in children with sickle cell disease, concluded Dr. MacLean.


'/>"/>

Contact: Keely Savoie
ksavoie@thoracic.org
212-315-8620
American Thoracic Society
Source:Eurekalert

Related medicine news :

1. Children of depressed moms do better when dad is involved, SLU researcher finds
2. High pollution linked to poor lung function growth in children in Mexico City
3. NYC-area 1st: Morgan Stanley Childrens Hospital performs transcatheter pulmonary valve replacement
4. Obese Children Miss More School Days
5. Ultra-Runner to Run 63 Marathons in 63 Days for Children with Incurable Disease
6. Psoriasis Cure Now offers Back to School Resources for Parents of Children with Psoriasis
7. Researchers estimate about 9 percent of US children age 8 to 15 meet criteria for having ADHD
8. Majority of 2.4 Million U.S. Children With ADHD Not Diagnosed or Consistently Treated, According to New Gold Standard Study by Cincinnati Childrens Researchers
9. Practice-based intervention has sustained benefits for children and families
10. 1.5 million children could be saved
11. Annual flu shot cuts need for doctors visits, hospitalization among children
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/8/2016)... ... 08, 2016 , ... After enjoying record-breaking attendance at its ... its 33rd Annual Issues & Research Conference, March 2-3, 2017, at the ... conference is “Persistent Challenges and New Opportunities: Using Research to Accelerate the Dialogue." ...
(Date:12/8/2016)... ... December 08, 2016 , ... Mirixa Corporation ... adherence, and other pharmacist-delivered patient care services, has announced the promotions of Karen ... to vice president of sales. , Litsinger joined Mirixa in 2008 after ...
(Date:12/8/2016)... ... December 08, 2016 , ... Premier Fitness Camp (PFC) and The Chopra Center ... loss and wellness program, at their world headquarters of Omni La Costa Resort & ... results to anyone seeking weight loss, personal development, a healthy lifestyle, or mental and ...
(Date:12/8/2016)... ... December 08, 2016 , ... ... has been recognized for adherence to the highest standards of trauma, maternity, cancer ... announced the center's president and CEO, Dr. Daniel Messina. , Among the recognitions, ...
(Date:12/8/2016)... ... December 08, 2016 , ... ... Care Act. Dr. Botelho advocates for the mass media launching of story movements ... ongoing opportunities to share their unfortunate experiences; such a movement can generate the ...
Breaking Medicine News(10 mins):
(Date:12/9/2016)...   Hudes Laser Aesthetica announced their ... Astanza Trinity laser and Astanza Liberty IPL technologies. ... removal, IPL hair removal, pigmented and vascular lesion ... Aesthetica is setting high standards for aesthetic clinics ... to deliver effective, long-lasting results. "Hudes ...
(Date:12/9/2016)... Fla. , Dec. 9, 2016  Harmar Mobility, LLC announced ... and a member of the Board of Directors. Photo ... ... Mr. Dawson,s ... development of organizations across a variety of industries. He brings to ...
(Date:12/9/2016)... DUBLIN , Dec 9, 2016 Research ... Vaccines Market 2016-2020" report to their offering. ... The global travel vaccines market ... The report covers the present scenario and the growth ... the market size, the report considers the revenue generated from the ...
Breaking Medicine Technology: