The study looked at whether the risk of mesothelioma continues to increase after more than 40 years since first exposure to asbestos. There is evidence that the rate of increase in the incidence for pleural mesothelioma reduces at about 45 years since first exposure while peritoneal mesothelioma continues to increase. So, while the rate of increase appears to start to level out after 40–50 years no one survives long enough for the excess risk to disappear.
Cho, a radiation oncologist, and de Perrot, a thoracic surgeon, paired up to turn conventional treatment on its head, giving patients radiation before surgery instead of after it. They’ve dubbed the technique SMART, for Surgery for Mesothelioma After Radiation Therapy, and Cho says three-year survival rates have more than doubled, from 32 per cent to 72 per cent.
Their success has drawn attention from around the world and they say doctors at the Mayo Clinic in Minnesota will soon attempt to use their method.
A new study involving a total of 30,000 firefighters from three large cities found they had higher rates of several types of cancers, and of all cancers combined, than the U.S. population as a whole. The researchers found that the firefighters had a rate of mesothelioma two times greater than the rate in the U.S. population as a whole. The researchers said it was likely that the findings were associated with exposure to asbestos, and NIOSH noted this is the first study ever to identify an excess of mesothelioma in U.S. firefighters.