Masip J, Roque M, Sánchez B, Fernández R, Subirana M, Expósito JA. JAMA. 2005 Dec 28;294(24):3124-30
Meta-analysis of 15 relevant randomised controlled trials and systematic reviews comparing NIV to conventional oxygen therapy in patients with acute pulmonary edema. Authors conclude that NIV 'reduces the need for intubation and mortality' in this scenario.
Link to abstract.
Pelosi P, Severgnini P, Aspesi M, Gamberoni C, Chiumello D, Fachinetti C, Introzzi L, Antonelli M, Chiaranda M. Eur J Emerg Med. 2003 Jun;10(2):79-86.
Early review of the use of NIV and the helmet interface in the emergency department and in the pre-hospital setting. Authors concluded that the helmet 'can extend the application of non-invasive positive pressure ventilation in different categories of patients with respiratory failure'.
Link to abstract.