Public Release: 

Pregnant women with asthma need to curb urge to ask for antibiotics

Twice as many children of mothers who took antibiotics while pregnant developed asthma

American College of Allergy, Asthma, and Immunology

ARLINGTON HEIGHTS, Ill. (March 3, 2015) - Getting sick when you're pregnant is especially difficult, but women whose children are at risk for developing asthma should avoid antibiotics, according to a new study.

The study, published in the Annals of Allergy, Asthma and Immunology, the scientific publication of the American College of Allergy, Asthma and Immunology (ACAAI), followed 298 mother-child pairs through the child's third year of life. The study found that 22 percent of the 103 children born to mothers who took antibiotics during pregnancy were diagnosed with asthma by age 3. In contrast, only 11 percent of the children born to mothers who didn't take antibiotics prenatally were similarly diagnosed.

Recent discussions of antibiotic use have centered on the fact that overuse has increased the number of drug-resistant germs, and decreased the effectiveness of many treatments.

"We were particularly interested in how prenatal antibiotic use affected at-risk children - those with a parent with asthma, hay fever or eczema," said study author Brittany Lapin, MPH. "The prevalence in asthma has doubled in developed countries in the last 30 years, and we're still investigating why poor and minority children are diagnosed more frequently. The message to pregnant women is to avoid antibiotics to the extent that they can, and possibly avoid asthma development in their children."

Although the study revealed that prenatal antibiotic use might be associated with the development of asthma, it did not hold true for wheezing. Wheezing, a whistling or squeaky sound in the chest when you breathe, especially when exhaling, often accompanies asthma.

"The more we know about what factors increase the probability of asthma developing, the better we can assist our pregnant patients," said allergist Dennis Ownby, MD, ACAAI Fellow and study co-author. "We wouldn't recommend not giving antibiotics to a pregnant woman, but we recommend caution when symptoms are not clearly caused by a bacterial infection. Pregnant women with asthma should work with their allergist to create a healthy outcome for themselves and their children."

According to a new ACAAI infographic, "Scope and Impact of the Asthma Epidemic," patients referred to allergists for their asthma had improved emotional and physical well-being and quality of life, and more satisfaction with the quality of medical care.

###

For more information about treatment of asthma, and to locate an allergist in your area, visit AllergyAndAsthmaRelief.org.

About ACAAI

The ACAAI is a professional medical organization of more than 6,000 allergists-immunologists and allied health professionals, headquartered in Arlington Heights, Ill. The College fosters a culture of collaboration and congeniality in which its members work together and with others toward the common goals of patient care, education, advocacy and research. ACAAI allergists are board-certified physicians trained to diagnose allergies and asthma, administer immunotherapy, and provide patients with the best treatment outcomes. For more information and to find relief, visit AllergyandAsthmaRelief.org. Join us on Facebook, Pinterest and Twitter.

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.