Fear of cancer recurrence and death anxiety.

In 2013, 3 systematic reviews of fear of cancer recurrence (FCR) and its predictors were published. All 3 concurred that FCR is a highly prevalent problem and amongst the largest unmet needs of cancer survivors, even 5 or more years after treatment. However, between them they identified only 1 study that had investigated the relationship between death anxiety and FCR. This is surprising because it is well acknowledged that a diagnosis of cancer, a potentially life-threatening illness, is associated with a number of existential issues that give rise to psychological sequelae such as intrusive thoughts about death and other post-traumatic symptoms. Outside the cancer literature, there has recently been a call to identify death anxiety as a transdiagnostic construct that underlies many anxiety disorders even in healthy people. And yet, the relevance of death anxiety to FCR has not been studied. We explore the barriers to the study of death anxiety and FCR and the reasons that a potential link between the 2 might have important theoretical and clinical implications. We conclude that establishing the relationship between death anxiety, FCR and other existential issues is essential in order to fully understand FCR, particularly in the context of advanced disease. We further conclude that whether death anxiety underlies FCR has important clinical implications which would potentially allow us to optimise currently available evidence-based treatments.