Apnea Treatment in Premature Infants Using an Automatic Vibro-tactile Stimulator Triggered by the Detection of Apnea-bradycardia.

Inclusion Criteria: * written informed consent, * Premature infants, * born to a term less than 34 weeks of amenorrhea (AS), * Age less than 36 weeks post-menstrual age, * With a postnatal age greater than 4 days, * caffeine treated, for at least 36 hours, * Presenting episodes of bradycardia apnea significant (\>10 sec with bradycardia \<100 bpm or SaO2\<80%) with an interval of less than 6 hours between two episodes observed in the 24 hours preceding inclusion. Exclusion Criteria: * Major congenital neurological abnormalities, * Congenital abnormalities of the respiratory tracts, * HIV grade 3 or 4, * Periventricular leukomalacia, * Invasive ventilation and non-invasive ventilation in NAVA mode, * Cyanogenic malformative heart disease, * Sepsis diagnosed in the 4 days prior to registration (CRP\> 10mg / L), * maternal addiction during pregnancy, * Father and / or mother legally protected (under judicial protection, guardianship or supervision).