Simplified Pulse Wave Velocity Measurement, Validation Study of the pOpmètre in Children

Arterial stiffness is an important marker of cardiovascular risk. It is measured by pulse wave velocity. The reference device to measure pulse wave velocity is the Sphygmocor which uses applanation tonometry. It is used in adults and children. An easier method called pOpmètre using saturation sensors is validated in adults but not in children. The objective of this study is to compare the pulse wave velocity values measured with the pOpmètre® with those of the SphygmoCor® to validate the pOpmètre in children between 4 and 8 years old.

Inclusion Criteria: * children between 4 and 8 years old hospitalized in the Mother and Children Hospital in Nantes during the study period. Exclusion Criteria: * Vasoconstrictor treatment, * compressive bandage on the measured area, * peripheral venous access on the measured side, * vascular surgery or pathology on the measured area, * significant pain or agitation, * parental or legal representative disapproval, * child disapproval.