High-Flow Nasal Cannula
Studies have shown that high-flow oxygen therapy can be successfully used to avoid conventional mask-based non-invasive and invasive ventilation therapy in patients with compromised respiratory function and helps them recover faster following extubation1. This translates to improved outcomes and shorter ICU stays2.
The benefits of high-flow oxygen extend beyond increasing oxygen saturation levels. Clinical observations show that high-flow oxygen can also improve mucus clearance,4,11 while increasing the patient’s tidal volume and end-expiratory lung volumes.5,6
Dräger designed the HI-Flow Star system to support enhanced patient safety. The newly designed swivel connector helps prevent accidental disconnections – ensuring more continuous therapy. Tension on the hose can make patients feel as if they were restrained. An integrated clip for the nasal tubing eﬀectively relieves tension on the breathing circuit – keeping patients more comfortable while facilitating mobility and physical therapy.
Heating and humidiﬁcation of the gas mix improves both patient tolerance and therapeutic eﬃcacy8,9,10. While the accumulation of condensate inside the circuit is often an issue with heated and humidified air, the flexible and breathable hose minimizes internal condensation.
The HI-Flow Star nasal patient interface is disposable, which reduces the possibility of cross contamination. An optional HI-Flow Star valve is a preset pressure relief valve that helps prevent excessive system pressure from becoming too high.
Studies show that high-flow therapy is more comfortable for patients than NIV7. However, patient comfort is a key issue with any interface. To be eﬀective, it must be worn continuously. The HI-Flow Star headgear is constructed of soft, lightweight materials that hold the interface ﬁrmly yet comfortably in place. It can be easily adjusted to provide an exact ﬁt.
The nostril is a very sensitive area. The design and soft materials used in the nasal prongs help to reduce skin lesions and increase patient comfort.
Thanks to its symmetrical design, the nasal cannula can be connected from either the left or the right side of the bed. This saves time and eﬀort for caregivers by eliminating the need to move the bed or equipment to connect the nasal cannula to the patient. The system is also fast to set up and easy to use, helping to reduce workload.
The HI-Flow Star is available in three sizes to fit all adult patients. The system is compatible with the Dräger Evita® Infinity® V500 ventilator. A source of compressed air and oxygen as well as a gas blender are required for operation.
1 Nasal high-flow versus Venturi mask oxygen therapy after extubation. Effects on oxygenation, comfort, and clinical outcome, Maggiore SM, Idone FA, Vaschetto R, Festa R, Cataldo A, Antonicelli F, Montini L, De Gaetano A, Navalesi P, Antonelli M., Am J Respir Crit Care Med. 2014 Aug 1;190(3):282-8. doi: 10.1164/rccm.201402-0364OC.
2 Can high-flow nasal cannula reduce the rate of reintubation in adult patients after extubation? A meta-analysis, BMC Pulm Med. 2017; 17: 142. Yue-Nan Ni, Jian Luo, He Yu,Dan Liu, Bin-Miao Liang, Rong Yao, and Zong-An Liang
3 Nasal high-flow oxygen therapy in patients with hypoxic resp. failure: effect on functional and subjective resp. parameters comp. to conventional oxygen therapy and non-invasive ventilation, Schwabbauer N, Berg B, Blumenstock G, Haap M, Hetzel J, Riessen R, BMC Anesthesiol. 2014 Aug 7;14:66. doi: 10.1186/1471-2253-14-66. eCollection 2014.
4 Domiciliary humidification improves lung mucociliary clearance in patients with bronchiectasis. Chron Respir Dis. 2008;5(2):81-6. Hasani A1, Chapman TH, McCool D, Smith RE, Dilworth JP, Agnew JE.
5 High-flow nasal cannula therapy for adult patients Jian Zhang, Ling Lin, Konghan Pan, Jiancang, Zhou, Xiaoyin Huang: Journal of International Medical Research 2016, Vol. 44(6) 1200–1211
6 Oxygen delivery through high-flow nasal cannulae increase end-expiratory lung volume and reduce respiratory rate in post-cardiac surgical patients Corley A, Caruana LR, Barnett AG, Tronstad O, Fraser JF: Br J Anaesth. 2011;107(6):998–1004
7 High-flow nasal oxygen therapy and noninvasive ventilation in the management of acute hypoxemic failure Frat JP, Coudroy R, Marjanovic N, Thille AW: Ann Transl Med. Jul;5(14):297
8 Physiologic Effects of High-Flow Nasal Cannula Oxygen in Critical Care Subjects, Vargas F, Saint-Leger M, Boyer A, Bui NH, Hilbert G, Respir Care. 2015 Oct;60(10):1369-76. doi: 10.4187/respcare.03814. Epub 2015 May 5.
9 Current evidence for the effectiveness of heated and humidified high flow nasal cannula supportive therapy in adult patients with respiratory failure, Roca O, Hernández G, Díaz-Lobato S, Carratalá JM, Gutiérrez RM, Masclans JR; Crit Care. 2016 Apr 28;20(1):109. doi: 10.1186/s13054-016-1263-z.
10 Heated and humidified high-flow oxygen therapy reduces discomfort during hypoxemic respiratory failure, Cuquemelle E, Pham T, Papon JF, Louis B, Danin PE, Brochard L., Respir Care. 2012 Oct;57(10):1571-7. Epub 2012 Mar 12.
11 A Systematic Review of the High-flow Nasal Cannula for Adult Patients. Critical Care201822:71 Published: 20 March 2018