Research from Lund University in Sweden has revealed that individuals who undergo treatment for head and neck cancer face a significantly higher risk of developing lymphedema, particularly if they maintain low levels of physical activity. The findings emphasize the need for greater awareness and proactive management of lymphedema, which can persist long after cancer treatment concludes.
Lymphedema occurs when the lymphatic system fails to adequately remove fluid from tissues, resulting in painful swelling. This condition can affect survivors of head and neck cancer, which includes various cancers in the region. Each year, approximately 1,800 individuals in Sweden are diagnosed with head and neck cancer, including around 550 cases of oropharyngeal cancer, a type linked primarily to human papillomavirus (HPV) infection.
According to the study, conducted on 50 patients with an average age of 64, the prevalence of lymphedema was alarmingly high. Just three months post-treatment, 80% of participants exhibited signs of lymphedema, while 69% continued to experience it after nine months. Agneta Hagren, a doctoral student and nurse practitioner at the Department of Otorhinolaryngology, Head & Neck Surgery, Skåne University Hospital, expressed surprise at the number of patients facing ongoing issues.
The study also highlights the challenges in assessing lymphedema accurately. Previous evaluations relied heavily on subjective manual examinations, lacking standardized criteria. The researchers implemented a lymph scanner to objectively measure tissue water, enabling them to establish clear parameters for diagnosing lymphedema in the head and neck area. As a result of this innovation, the Southern Healthcare Region in Sweden has adopted lymph scanners along with the measurement standards developed during the research.
The findings indicate that patients who engaged in regular physical activity reported lower instances of lymphedema. Those who rated their physical activity levels between 4 to 6 on a six-point scale showed less susceptibility to the condition. In contrast, individuals with minimal physical activity faced a heightened risk.
In light of these results, Hagren advocates for adherence to the World Health Organization (WHO) guidelines, which recommend engaging in physical activity for 20 to 40 minutes daily at moderate intensity—or 10 to 20 minutes at high intensity—along with strength training exercises twice per week.
This study marks a significant step towards understanding the long-term health implications for head and neck cancer survivors. As Hagren notes, enhancing awareness and management of lymphedema is crucial, especially since many patients already grapple with severe side effects from cancer treatment that impact their quality of life, including speech difficulties and challenges with eating. Addressing these concerns not only aids in physical health but also supports mental well-being, as changes in appearance can adversely affect self-esteem and social interactions.
The research underscores the importance of integrating physical activity into recovery plans for cancer survivors, paving the way for future studies to explore the most effective forms of exercise to mitigate lymphedema risk.
