Scientific literature

Scientific literature: an overview

Over the last 20 years, various systems have been developed for home use to deliver oxygen in comfort mode. Oxypoint introduces comfort oxygen therapy in hospitals and provides you with the link to the most relevant decisions from the literature that also apply to the hospital environment.

The literature is organized according to the following five topics:

  1. Equivalent oxygen saturation in continuous and comfort mode
  2. Optimal oxygen consumption: In the comfort mode, there is only oxygen delivery during the first phase of inhalation and no oxygen is wasted in the exhalation or absence of the patient. These two measures ensure a drastic reduction in oxygen consumption in hospitals.
  3. Humidification: Need to use a humidifier during oxygen therapy is no longer present when using comfort mode, which eliminates the risk of infection of the humidifier.
  4. Infection risk: The use of a humidifier is a potential risk of infection in the hospital. The comfort mode makes this superfluous.
  5. Technology: The importance of the chosen technology: the performance of comfort mode systems is of uneven quality and an oxygen pulse during the first phase of breathing gives better results for the patient.

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2. Antoine Cuvelier, Jean-Francois Muir, Pierre Czernichow, Emmanuel Vavasseur, Florence Portier, Daniel Benhamou and Dominique Samson-Dolfuss. Nocturnal Efficiency and Tolerance of a Demand Oxygen Delivery System in COPD Patients With Nocturnal Hypoxemia

A dose oxygen delivery system (DODS) device ensures good quality oxygenation among most patients (here: moderate to severe COPD patients), provided that the oxygen flow rate is personalized. The Use of the DODS device permitted an average oxygen consumption reduction of 60%.

2. Nakipoglu Y, Erturan Z, Buyukbaba-Boral O, Aksozek A, Aydin S, Derbentli S. (2005) Evaluation of the contaminant organisms of humidifier reservoir water and investigation of the source of contamination in a university hospital in Turkey. Am J Infect Co

The humidifier reservoir water was heavily contaminated with fungi (46%) and bacteria (30%). Some of these contaminants such as Aspergillus spp, Scedosporium spp, Penicillum spp, F oryzihabitans, and P aeruginosa are known as potentially lower respiratory tract pathogenes and life-threatening in immunocompromised hosts and even outbreaks.

3. Sheldon R. Braun, Ginger Spratt, Graham C. Scott and Mark Ellersieck. Comparison of six oxygen delivery systems for COPD patients at rest and during exercise Chest 1992;102;694-698

The demand oxygen delivery systems (DODS) maintained saturation (SaO2) in rest, which indicates they provide an adequate alternative supplemental oxygen source then continuous delivery in rest. To ensure equivalent saturation as continuous during exercise, the right type of DODS must be used, more specifically increased oxygen delivery during exercise in comparison to a constant minute volume.

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