Cosentini R, Brambilla AM, Aliberti S, Bignamini A, Nava S, Maffei A, Martinotti R, Tarsia P, Monzani V, Pelosi P.
Chest. 2010 Jul;138(1):114-20
Multi-centre, randomised controlled trial. 47 patients admitted to ED with moderate hypoxemic acute respiratory failure (ARF) due to community-acquired pneumonia (CAP) were split into helmet CPAP or standard oxygen therapy groups. Primary end point was time to reach PaO2/FiO2 ratio > 315. The proportion of patients who reached the primary end point was also recorded. Authors conclude that CPAP delivered by helmet rapidly improves oxygenation in this scenario.
Link to abstract.
Foti G, Sangalli F, Berra L, Sironi S, Cazzaniga M, Rossi GP, Bellani G, Pesenti A. Intensive Care Med. 2009 Apr;35(4):656-62
Comparison of application of CPAP by helmet in combination to medical therapy or used as a stand-alone procedure. In 62 patients split across the two groups, CPAP significantly improved oxygenation, reduced respiratory rate and improved hemodynamics. Based on results, authors propose 'helmet CPAP as first line pre-hospital treatment of presumed severe ACPE'.
Link to abstract.
Bellani G, Patroniti N, Greco M, Foti G, Pesenti A. Minerva Anestesiol. 2008 Nov;74(11):651-6
Review focusing on the properties of the helmet and the issues related to its use for the treatment of cardiogenic and non-cardiogenic pulmonary edema.
Link to abstract.
Conti G, Cavaliere F, Costa R, Craba A, Catarci S, Festa V, Proietti R, Antonelli M. Respir Care. 2007 Nov;52(11):1463-71
Comparison of the efficacy of NPPV delivered to 25 patients via helmet, matched with 25 controls chosen from historical patients treated with face mask. Authors conclude that NPPV by helmet can be 'an alternative to conventional ventilation'.
Link to abstract.
Antonelli M, Conti G, Esquinas A, Montini L, Maggiore SM, Bello G, Rocco M, Maviglia R, Pennisi MA, Gonzalez-Diaz G, Meduri GU. Crit Care Med. 2007 Jan;35(1):18-25
Prospective multi-centre cohort study across three European intensive care units with NPPV expertise, resulted in survey of 479 patients with ARDS. Authors conclude NPPV applied as first-line intervention avoided intubation in 54% of treated patients.
Link to abstract.