151751-Najiba-Chargi

21 Introduction their predictive and prognostic impact in elderly head and neck cancer patients. Chapter 18 presents the prognostic impact of low skeletal musclemass and lowmuscle function on overall survival in elderly patients with head and neck cancer. Chapter 19 presents the predictive impact of sarcopenia measured with skeletal muscle mass and muscle strength on frailty in elderly patients with head and neck cancer. Chapter 20 presents the association of sarcopenia measured with skeletal muscle mass and muscle function and frailty in elderly patients with head and neck cancer. In Chapter 21 a summary and general discussion is presented with future perspectives and in Chapter 22 a Dutch summary is presented. 1