Commitment to confidentiality and ethical consideracions
The EAHFE registry was approved by the regional Ethics Committee of
Clinical Investigation of the Principality of Asturias. All the patients
provided signed informed consent for participation in the study and
posterior follow-up. The data were encoded and managed with complete
confidentiality and were only accessible to the investigators of each of
the participating centers. The ANEM-AHF study was performed according to
the principles of the Declaration of Helsinki for biomedical
investigation.