Applying the results
“We believe that this is the first time that anyone has conducted a study on this topic on a scale like this, and we show that it is possible to relatively easily identify women at a very high risk of CVD,” Dr. Verkooijen said. “But what do we do with this information, because these scans are not made to answer this question. … This is information that we get that we haven’t really requested. I think we should only use this information when we have really shown that we can help patients reduce their risk of cardiovascular disease.”
To that end, Dr. Verkooijen and colleagues are planning additional research that will look at the potential benefit of referring high-risk patients for cardioprevention strategies and at the role of using the CAC score to personalize treatment strategies.
Dr. Meena S. Moran
“This is an interesting and novel approach to predicting cardiac events for patients undergoing breast cancer treatment,” Meena S. Moran, MD, of Yale University in New Haven, Conn., commented in an interview.
The approach would likely be feasible in typical practice with widespread availability of the automated algorithm and might even alter treatment planning in real time, she said. “From the standpoint of radiation oncology, it would mean running the software to generate a CAC score, which would allow for modifications in decision-making during treatment planning, such as whether or not to include the internal mammary nodal chain in a patient who may be in the ‘gray zone’ for regional nodal radiation. For example, if a patient has a high CAC score, plus if they have received (or are receiving) cardiotoxic drugs, radiation oncologists can use that information as an additional factor to consider in the decision-making of whether or not to include the internal mammary chain, which inevitably can increase the dose delivered to the heart,” Dr. Moran elaborated.
Dr. Verkooijen’s study was supported by the Dutch Cancer Society, the European Commission, the Dutch Digestive Foundation, the Netherlands Organisation for Scientific Research, and Elekta. Dr. Verkooijen and Dr. Moran disclosed no conflicts of interest.
SOURCE: Gal R et al. EBCC-12 Virtual Congress, Abstract 7.