Patients were recruited at the acute unit of the Geriatrics Service. When they were admitted due a heart failure exacerbation a trained nurse performed the initial assess. If the patient was suitable, a geriatrician explained to him /her the study and if the patient accepted we was asked to sign the informed consent. Then he was assigned randomly to a group. For those in the intervention group, they were trained by the geriatrician and the nurse on how to perform the measurements in the mobile phone. For those in the control group, the staff recorded the baseline characteristics, and during the follow-up the emergency visits, readmissions and death was recorded. These latter variables were also recorded in the patients of the intervention group.