METHOD FOR ESTIMATING UTERUS INVOLUTION ADEQUACY IN PUERPERAL PERIOD Russian patent published in 2005 - IPC

FIELD: medicine.

SUBSTANCE: method involves determining uterus volume by means of ultrasonic examination. Conditional uterus volume X is calculated from formula X=axbxcxK, where K is the correlation coefficient equal to 0.5236, a is the transverse uterus diameter from a tubal angle to the other one, b is the uterus length from the internal fauces to the fundus, c is the anteroposterior uterus size from the most distant points; conditional uterus cavity volume X₁ is calculated from formula X₁=a₁xb₁xc₁xK, where K is the coefficient equal to 0.5236, a₁ is the transverse uterus diameter from a tubal angle to the other one, b₁ is the uterus length from the internal fauces to the fundus, c₁ is the anteroposterior uterus size from one myometrium edge to the other one; conditional uterus volume Y and conditional uterus cavity volume Y₁ is calculated from formula Y=a₂xb₂xc₂xK, where K is the correlation coefficient equal to 0.5236, a₂ is the transverse uterus diameter from a tubal angle to the other one, b₂ is the uterus length from the internal fauces to the fundus, c₂ is the anteroposterior uterus size from the most distant points; Y₁=a₃xb₃xc₃xK, where K is the coefficient equal to 0.5236, a₃ is the transverse uterus diameter from a tubal angle to the other one, b₃ is the uterus length from the internal fauces to the fundus, c₃ is the anteroposterior uterus size from one myometrium edge to the other one; measured at the second day after delivery. The calculated parameters are used for calculating uterus involution coefficient K_in. Ratio of conditional muscular mass of the uterus at the second day after delivery to conditional muscular mass of the uterus at the fifth day after delivery as K_in = (X-X₁)/(Y-Y₁), where X-X₁ is the conditional muscular mass of the uterus at the second day and Y-Y₁ is the conditional muscular mass of the uterus at the fifth day. The value of K_in. being greater than 1.5, adequate uterus involution is to be determined. The value of K_in. being less than 1.5, uterus subinvolution is considered to be the case.

EFFECT: high accuracy of estimation method.

3 dwg