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Do to the non-interventional design of the registry, the national law allows central Ethical Committee approval, accompanied by notification to the local Ethical Committees. All participating patients gave informed consent to be included and to be contacted for follow-up. The present study was carried out in strict compliance with the Declaration of Helsinki.","order":2,"name":"Ethics","label":"Ethical approval","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The EAHFE Registry protocol was initially approved by a central Ethics Committee at the Hospital Universitario Central de Asturias (Oviedo, Spain, reference numbers 49\/2010, 69\/2011, 166\/13, 160\/15 and 205\/17) and Hospital Cl\u00ednic de Barcelona (Barcelona, Spain, reference number 2018\/0233). Due to the non-interventional design of the registry, Spanish law allows central Ethical Committee approval, accompanied by notification to the local Ethical Committees. All participating patients gave informed consent to be included and to be contacted for follow-up.","order":3,"name":"Ethics","label":"Institutional review board","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The study was presented by O Mir\u00f3 as \u201cIncidence and prognosis of respiratory failure in acute heart failure\u201d, in the European Society of Cardiology Heart Failure & World Congress of Acute Heart Failure. Late Breaking Science Registries: Pathophysiology and Mechanisms, Lisbon 2024.","order":4,"name":"Ethics","label":"Notation of prior abstract publication\/presentation","group":{"name":"EthicsHeading","label":"Declarations"}}]}}