METHOD FOR ASSESSING DEGREE OF HEMODYNAMIC DISORDER WITH EBSTEIN ANOMALY Russian patent published in 2019 - IPC A61B8/06 A61B8/08 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to cardiosurgery and beam diagnostics, and can be used for assessing degree of haemodynamic disorders in the Ebstein anomaly. It involves echocardiography in B-mode and colour Doppler mapping. Apical four-chamber position is fixed from an apex point of the right ventricle at the beginning of ventricular systole. Obtained image is used to measure the shortest distance in mm from the level of the fibrous ring of the tricuspid valve to the apex of the right ventricular cavity (I) and to measure the shortest distance from the level of the fibrous ring of the tricuspid valve until the beginning of the regurgitation jet corresponding to the level of closure of valve flaps (A). Hemodynamic disorder index is determined in the Ebstein anomaly (HDI)=A/I. If the HDI value is less than 0.25, a disorder of delamination of the posterior and septal valve cusps is stated, which corresponds to the state of the patient with degree 1, wherein the operation is not required or is performed at the age of more than 10 years. If the HDI value is 0.26–0.5, the disruption of delineation of the posterior and septal flaps of the tricuspid valve is stated, which corresponds to the state of the patient with degree 2, wherein the operation is performed at age of 5–10 years. If the HDI value is 0.51–0.75, a disorder of delineation of the posterior, septal and anterior flaps of the tricuspid valve is stated, which corresponds to the state of the patient with degree 3, wherein the operation is performed at age of 1–5 years. If the HDI value is 0.76–1.0, a disorder of delineation of the posterior, septal and anterior flaps of the tricuspid and posterior and anterior flaps of the mitral valves is stated, which corresponds to the state of the patient suffering degree 4, where urgent surgery is required.

EFFECT: technical result provides a more reliable and repeatable method of assessing the state of a child with an Ebstein anomaly, which will allow predicting the length and need for the surgical intervention.

1 cl, 1 dwg, 1 tbl, 1 ex