Brambilla AM, Aliberti S, Prina E, Nicoli F, Forno MD, Nava S, Ferrari G, Corradi F, Pelosi P, Bignamini A, Tarsia P, Cosentini R. Intensive Care Med. 2014 Jul;40(7):942-9
Multi-centre, randomised controlled trial across four Italian centres. Patients split into helmet CPAP and Venturi mask groups. Primary end point was percentage of patients meeting criteria for ETI. Authors conclude helmet CPAP reduces the risk of meeting ETI criteria in this scenario.
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.
Squadrone V, Coha M, Cerutti E, Schellino MM, Biolino P, Occella P, Belloni G, Vilianis G, Fiore G, Cavallo F, Ranieri VM. JAMA. 2005 Feb 2;293(5):589-95
Randomised, controlled, unblinded study on 209 patients randomyl assigned to receive oxygen or oxygen plus CPAP via helmet. Primary end point was incidence of endotracheal intubation. Authors conclude that CPAP via helmet 'may decrease the incidence of endotracheal intubation' in this scenario.
Link to abstract.
Tonnelier JM, Prat G, Nowak E, Goetghebeur D, Renault A, Boles JM, L'her E. Intensive Care Med. 2003 Nov;29(11):2077-80
Prospective pilot study on 11 adult patients with acute hypoxemic respiratory failure, treated with helmet CPAP, matched with 11 control patients treated with standard face mask. Primary end points were improvements of gas exchanges and clinical parameters of respiratory distress. Authors conclude the helmet is an 'efficient alternative' to face mask treatment 'even in cases of severe respiratory acidosis and hypercapnia'.
Link to abstract.
Antonelli M, Conti G, Pelosi P, Gregoretti C, Pennisi MA, Costa R, Severgnini P, Chiaranda M, Proietti R. Crit Care Med. 2002 Mar;30(3):602-8
Prospective clinical pilot investigation on 33 patients treated with noninvasive pressure support ventilation (NPSV) delivered by helmet. Each patient was matched with two controls with ARF treated with NPSV via a facial mask. Primary end points were improvement of gas exchange, need for endotracheal intubation and the complications related to NPSV. Both groups improved oxygenation after NPSV, less patients failed NPSV and were intubated in the helmet group and less complications occured, while longer continuous application of the tecnique was possible. Authors concluded that NPSV by helmet successfully treated hypoxemic ARF, with better tolerance and fewer complications than facial mask NPSV.
Link to abstract.