Assessment of Cardiac Autonomic Function in Adulthood After Chemotherapy or Radiotherapy in Childhood. Ancillary Study of the "Long-term Follow-up of Childhood Cancer Survivors in the Rhône-Alpes and Auvergne Regions of France" Study

The SALTO-SNA study is an ancillary study of the SALTO study (Suivi À Long Terme en Oncologie des enfants guéris d'un cancer pédiatrique en régions Rhône-Alpes et Auvergne) coordinated by Dr. Claire Berger, pediatric oncologist at the CHU, Saint Etienne. It aims at re-examining, in their initial treatment center, all patients (a cohort of 495 patients alive in 2011), diagnosed between 1987 and 1992, and cured of childhood cancer (except leukemia) in the Rhône-Alpes and Auvergne regions.

The rationale for this study is based on the observation that although the survival rate of childhood cancers has now reached 75%, complications of chemotherapy and radiotherapy are high and greatly increase the risk of mortality in later years (estimated to be 14% in the literature).

The morbidity risk of chemotherapy and radiotherapy can be quantified by assessing the activity of the intrinsic cardiac autonomic regulation, which represents a powerful predictor of cardiovascular morbidity to the individual.