Breath Test May Detect Signs of Lung Cancer: Study01/28/14
TUESDAY, Jan. 28, 2014 (HealthDay News) -- A simple breath test
might reveal if a person has early-stage lung cancer, according to
a new study.
Researchers tested the exhaled breath of people with suspicious
lung lesions that were detected on CT scans. The breath was tested
for levels of four cancer-specific substances, called
The breath samples were analyzed using a special device
developed at the University of Louisville.
Having elevated levels of three of the four carbonyls was
predictive of lung cancer in 95 percent of patients, while having
normal levels of these substances was predictive of a noncancerous
growth in 80 percent of patients, the researchers found.
Elevated carbonyl levels returned to normal after lung cancer
patients had surgery to remove the cancer, according to the study,
which was to be presented Tuesday at the Society of Thoracic
Surgeons annual meeting in Orlando, Fla.
"Instead of sending patients for invasive biopsy procedures when a suspicious lung mass is identified, our study suggests that exhaled breath could identify which patients" may be referred for immediate surgery, study author Dr. Michael Bousamra, of the University of Louisville, said in a society news release.
This approach offers something new, he said, including "the
simplicity of sample collection and ease for the patient."
The data and conclusions of research presented at medical
meetings should be viewed as preliminary until published in a
The American Lung Association has more about
lung cancer diagnosis.
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