Results from the Childhood Cancer Survivor Study (CCSS) suggest that supplementing written heart screening guidelines with telephone counseling from specially trained nurses more than doubled the likelihood that adult survivors of childhood cancer received recommended heart checks.
St. Jude Children's Research Hospital investigators led the research, whose findings appear in the current issue of the Journal of Clinical Oncology.
AdvertisementThe research focused on adults whose childhood cancer treatment put them at risk for a variety of heart problems, including heart muscle weakness known as cardiomyopathy, which can lead to heart failure and other health problems. This study was designed to understand and address why more survivors do not get the periodic heart screenings that are recommended to detect cardiomyopathy early when interventions may slow disease progression and prevent heart failure.
In this study, cardiomyopathy screening by at-risk survivors rose from 22.3 percent to 52.2 percent when the written recommendations survivors received were followed by telephone counseling from nurse practitioners. The two brief counseling sessions focused on helping survivors identify and overcome barriers to receiving the recommended diagnostic testing.
Of the 153 survivors who got the recommended screening, 52.2 percent were found to have heart abnormalities that required continued medical monitoring. Cardiomyopathy was detected in 10 percent of the survivors who were screened.
"This intervention offers a model for how to motivate other cancer survivors, including survivors of adult cancers, to be more proactive about their health," said the study's first and corresponding author Melissa Hudson, M.D., a member of the St. Jude Department of Oncology. "This study shows that by understanding and addressing the concerns and obstacles survivors face to acting on screening recommendations, medical providers can increase the number of survivors who get this potentially life-saving test."
The U.S. is home to at least 328,000 residents who were age 20 or younger when their cancer was discovered. With overall childhood cancer survival rates in the U.S. now approaching 80 percent, the ranks of childhood cancer survivors will continue to increase.
Thanks to efforts like the CCSS and St. Jude long-term survivorship studies, there is a growing understanding of the health risks and challenges that survivors face. That knowledge has led to new approaches to help survivors and current cancer patients better manage or reduce such threats.
The strategies include screening guidelines for survivors treated with chest irradiation or chemotherapy drugs called anthracyclines, alone or in combination. Both therapies predispose survivors to cardiomyopathy before middle age. The risk increases with the cumulative dose of either therapy alone or in combination. Based on treatment histories, the Children's Oncology Group (COG) recommends at-risk survivors undergo cardiomyopathy screening annually or at two- or five-year intervals. COG is an international consortium of pediatric cancer researchers and institutions.
The 472 at-risk survivors in this study had gone at least five years without cardiomyopathy screening. On average, they were 40 years old, but ranged in age from 25 to 59 years old.
All were enrolled in the CCSS, an ongoing federally funded project designed to improve understanding and management of the health risks and challenges facing childhood cancer survivors as they age. The CCSS includes more than 12,000 adults who were age 20 or younger when their cancer was discovered between 1970 and 1986. The survivors were treated at 26 medical centers in the U.S. or Canada. CCSS participants are surveyed periodically about their health, health behaviors and use of health care services. None of the survivors in this study was enrolled in long-term follow-up programs that provide survivor health monitoring based on treatment-related risk.
After a baseline health assessment, survivors in this study received a personalized survivorship care plan in the mail that included a summary of their cancer treatments, health risks and cardiomyopathy screening recommendations. The recommendations were based on COG guidelines. The mailing included a laminated card summarizing the information and screening recommendations for survivors to share with their primary-care providers.
A week after receiving the care plan, nurses called 205 participants to discuss the survivors' concerns and barriers to completing the recommended screening. The nurses called again two weeks later. Survivors also received letters summarizing each counseling session.
A year later, 22.3 percent of survivors who received the written recommendations through the postal service had been checked for cardiomyopathy compared to the 52.2 percent of those who were also counseled by a nurse by telephone.
When researchers queried survivors about why they did not get screened, those in the counseling group were more likely to cite concerns about insurance coverage. Those who received the written information only were more likely to link lack of screening to the failure of their current health care provider to recommend the test. Hudson said the findings underscored the need for better communication among survivors, primary care providers and pediatric oncologists.
Meanwhile, researchers are working on ways to implement the intervention detailed in this study more widely, possibly by developing an online approach.
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