![]() ![]() Heated and Humidified oxygen has a number of benefits compared to standard oxygen therapy. Each manufacturer will also have a max flow rate for each cannula size corresponding to the size and age of the patient. Each cannula should snuggly fit into the patient’s nares and prevents entrainment of room air around the cannula, which can occur with standard nasal cannulas. There are 2 main companies, which manufacture these devices: Vapotherm which has a device that can deliver flow rates of up to 50 liter/min flow rates and Fisher Paykall who offers both the Optiflow as well as the AIRVO 2 devices which can both deliver flow rates of up to 60 liter/min.Įach company offers smaller cannula sizes for premature neonates as well as children of various ages to adult cannulas. The flow rate and fi02 can be independently titrated based on your patient’s flow and fi02 requirements. It actually takes gas and can heat it to 37 o C with a 100% relative humidity and can deliver 0.21 – 1.00% fi02 at flow rates of up to 60 liters/min. Heat and humidified high flow nasal cannula or as most call it, Hi Flow Nasal Cannula (HFNC), isn’t just a standard nasal cannula cranked up to very high flow rates. In this part we will summarize how it works and for part 2 we will discuss the main indications for its use in adult and pediatric patients. It seems over the past several years many studies have come out reviewing the mechanisms of action as well as its use in a variety of conditions. I noticed a few years after using it successfully in children, mainly with severe bronchiolitis, that we began to use it in the adult intensive care unit as well. I first started using it as a pediatric intensive care fellow, but had little knowledge of how it actually worked. ![]() The use of heated and humidified high flow nasal cannula (HFNC) has become increasingly popular in the treatment of patients with acute respiratory failure through all age groups. ![]()
0 Comments
Leave a Reply. |