Clinical Utility Of Six Novel Equations Of Motion For Ventilator Graphics Display

Abstract

INTRODUCTION: Ventilator Graphics display have immense clinical value to analyze the respiratory system mechanics in the management of mechanically ventilated patients. The Equation of Motion for the respiratory system is the basic fundamental concept to understand the respiratory mechanics. Based on this equation, novel equations of motion for ventilator graphics interpretation were derived and already published by the current author in previous research studies.

AIM: The aim of this current research study is to focus the clinical utility of six novel equations of motion in ventilator that helps to correlate and understand the various physical concepts involved in the mechanics of breathing.

MATERIALS AND METHODS: The relationship between various physical concepts like pressure, volume, flow rate, resistance, compliance, time constant, total cycle time, frequency, work done and novel derived equations of motion were utilized.

RESULTS: Six novel equations of motion of ventilator that are used to understand the changes in pressure gradient, inspiratory flow, expiratory flow, time constant and passive elastic recoil pressure are tabulated. The calculation of work done during inspiration and expiration using these equations are tabulated. A sample of ventilator graphics for interpretation in different clinical conditions were graphically depicted.

CONCLUSION: These six novel equations of motion   may play a significant role in the qualitative identification of the changes observed in ventilator graphics display. Therefore it may serve as an effective teaching tool for ventilator graphics interpretation which in turn helps to improve the patient care of mechanically ventilated patients.