Study of the Relationship Between Clinical and Paraclinical Markers During Situations of Cachexia and Pre-cachexia in Patients Over 70 Years With Colorectal Surgery

Cachexia associated with cancer is a grave and most of the time irreversible common situation. It seems independent from the size of the tumor or from its metastatic character. The consequences for the management of the patient are major and exceed widely the frame of the nutrition.

Undernutrition of patients with cancer is described by a decrease of the energy contributions and a loss of muscular and fat mass, leading to a progressive functional deficiency which can go to the cachectic state.

Actually, clinical criteria are proposed allowing to characterize the state of pre-cachexia but it remain too indistinct to allow an early and efficient screening and set up effective measures of prevention of the cachexia, to avoid the loss of muscular tissue and the cast iron of the energy reserves.

It is necessary to have clinical and biological markers with diagnostic aim and forecasts during the situations precedents the appearance of cachexia.

The present study will allow calibrating a longitudinal study, which could confirm the value of measures made for the diagnosis of pre-cachexia.