[Continuous flow ventilatory support using a multijet insufflation catheter. Physical, mathematical and clinical prerequisites and principles].
The authors present theoretical principles of a new ventilatory support continuous flow ventilatory support (CFVS) with multijet insufflation catheter (MIC). Theoretical part of the presented work reasons the need of this type of ventilatory support and explains basic mathematical and physiologic principles of described mechanical ventilation method and reveals the advantages of continuous flow ventilatory support with multijet insufflation catheter in comparison with terminal eye catheter. Physical and mathematical analysis on a model of lungs in static and dynamic conditions revealed that the difference in the value of maximal inspiratory pressure is significantly higher in the system with terminal eye catheter and confirmed that the CFVS application with multijet insufflation catheter is connected with minimal risk of barotrauma by gas flow up to 20-26 l/min. The paper concludes that continuous flow ventilatory support with multijet insufflation catheter is more efficient with the possibility of significantly higher gas flow application than with terminal eye catheter and without the risk of pressure rise in the airways and without rise of breathing work. (Fig. 10, Ref. 11.)
Torok
P
P
Department of Anesthesiology and Resuscitation, General Hospital, Vranov nad Toplou, Slovakia.
Majek
M
M
Kolnik
J
J
D006801:Humans; D008954:Models, Biological; D011175:Positive-Pressure Respiration / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods*; D015656:Respiratory Mechanics