Fourth Military Medical University's first non-invasive chest pressure measurement device

the Fourth Military Medical University TangduHospital
the whole army ultrasound medical center doctoral tutor Cao Tiesheng, Duan Yunyou and others, after more than 10 years of basic research and clinical trials, the first "non-invasive chest pressure measurement device" in the international community, its research "breathing affects the mechanism of heart function new hypothesis" was further confirmedThe research results were recently published in the international authoritative journal American Journal of echocardiogram, and experts at home and abroad highly appraised: "This study and its devices are simple and practical, non-traumatic, important for theoretical research and clinical application."For a long time, the medical profession has studied more about the mechanism of respiratory influence on the function of the heart, but so far it is still inconclusiveCao Tiesheng, Duan Yunyou and others put forward the "New hypothesis of respiratory influence heart function mechanism" based on years of basic research and hemodynamic principles and simulation experimentsTo further prove the "new hypothesis", they modified the surface blood pressure monitor and designed a simple set of equipment to measure changes in chest pressure in the bodyIts modification method and working principle: the surface blood pressure meter cuff and part of the hose to remove, attached to a piece, the end of the mouth is equipped with a thin rubber pad as a single guide air flap, to prevent inhale air leakage without affecting the exhalation; When checking, the subject uses a nose clip to block the nostrils, and the hand covers one end of the mouth on the mouth for resistance breathing, at which point the size of the chest pressure should be the sum of the exhaled chest pressure and the needle change reading after inhalationThe results of this study further prove that the change of respiratory chest pressure leads to the change of blood flow rate of theheartthe valves, and thus is also the driving force of the change of heart function with breathing, which provides a powerful experimental basis for further verifying the new hypothesis of "breathing affects the mechanism of heart function"The results of the experiment also provide experimental data and theoretical basis for the clinical application of this hypothesis, such as: non-invasive determination of left ventricle diastomy pressure, pulmonary artery pressure and quantitative heart-packing hemodynamic impairment, and the results of the study also explain many clinical phenomena, such as: asthma patients have an important pulse, etcGuiding significance (when asthma attacks, airway resistance increased significantly, making the change of respiratory chest pressure increased accordingly, the aortic valve respiratory blood flow fluctuation index will increase significantly, resulting in strange veins), and for the determination of asthma, chronic obstructive pulmonary disease and otherdiseasesseverity provides another important index(reproduced from China Medical Daily)