METHOD OF DIAGNOSIS OF CHARACTER OF FETUS HEAD POSITION IN LABOR Russian patent published in 1999 - IPC

FIELD: medicine; applicable in practice of obstetrics. SUBSTANCE: method includes determination by ultrasonic scanning of position and view of fetus by situation of vertebral column and scull facial part, situation of fetus head with respect to plane of aditus to small pelvis by size of head contour situated below the given plane, bending or unbending of head by value of cervico-occipital angle or mental-sternal size depending on fetus view (front or rear), situation of head sagittal suture by situation of orbits relative to median line of body and their relative situation, type and degree of asynclitism by situation of orbits relative to plane of aditus to small pelvis and their vertical displacement relative to each other. optimal version of fetus head position in labor is front vie of vertex presentation which in ultrasonic scanning has the following features: fetus vertebral column is situated at the front and leftwards, scull facial part - rightward and rearwards, 1/3 of head contour is situated below plane of aditus to small pelvis, present moderate bending of head (cervico-occipital angle from 120 to 140 deg) and rear asynclitism of the first degree of manifestation (rear orbit is below the front one and value of vertical displacement does not exceed 2.5 cm), sagittal suture is in right oblique size of aditus to small pelvis (front orbit is on the right from body median line, rear orbit, on its level). Detection of deviations from the above version of position of fetus head is diagnosed as pathologic position which is one of symptoms of functionally narrow pelvis and serves as the basis for revising the tactics of labor conduction. EFFECT: possibility of earlier, more accurate and safe, in terms of infecting of labor tracts, diagnosis of pathologic versions of fetus head position in labor, reduced frequency of traumatic-hypoxic damages to fetus and decreased maternal injury.