ESPU Congress 2018 - Abstract Book

CONGRESS OF THE ESPU

16:29–16:32

S3-12 (PP)

THE FETAL DIURESIS UNDER PHISIOLOGICAL

PREGNANSY - THE NATURAL DIURETIC TEST

Liudmila DERYUGINA

and Elena KRASNOVA

1) Saratov state Medical university, Saratov Scientific Research Medical Institute of Fundamental and C, Urology,

Saratov, RUSSIAN FEDERATION - 2) Saratov State Medical University named after V.I.Razumovsky, Paediatric

Surgical Department, Saratov, Pediatric Surgical Department, Saratov, RUSSIAN FEDERATION

PURPOSE

The fetal diuresis – an important physiological indicator, which reflects homeostasis, the hemody-

namic in conditions of normal urodynamics.

The aim of the stude is to determine parameters of diuresis in the fetuses between 19 and 40 weeks

of gestation under the physiological circumstances.

MATERIAL AND METHODS

The prenatal ultrasound cystometry with natural filling was used in 86 to study/. We registered the

maximum and minimum volume of the bladder, the lengh of the micturition cycling, which allowed

us to calculate diuresis of the fetus per minute (hour) taking into account the weight of the body.

56 prenatal ultrasound fetal urodynamic investigations were performed during normal pregnancy of

the fetus in 19–40 weeks of gestation.

RESULTS

A high correlation between fetal diuresis, gestational age, fetal weight and capacity of the bladder

(r -0.84), (r-0.76), (r-0.83) was noted. The normative values of diuresis of the fetus in different terms

of gestation are calculated.

Diuretic parameters

weeks

18–22

23–26

27–30

31–33

34–36

37–40

ml\minute

M = 0,07 M =0,13

M =0,21

M =0,48

M=0,71

M =0,64

ml\hour

M = 4,26 M =7,77

M =11,4

M =28,7

M =42,8

M =38,74

ml\hour\kg

M = 9.93 M =9,63

M =9,93

M=15,15 M=17,57 M =12,95

Comparison of diuresis of the fetus with diuresis of the newborn, it becomes evident that, starting

from the 20

week of gestation, the fetal diuresis exceeds the newborn diuresis.

CONCLUSIONS

The fetus has high level diuresis, which can be regarded as a natural diuretic load, the special

physiological significance of which can be the formation and regulation of the detrusor functions.