METHOD FOR ULTRASONIC DIAGNOSIS OF AORTO-MESENTERIC COMPRESSION OF LEFT RENAL VEIN IN LEFT-SIDED VARICOCELE IN CHILDREN Russian patent published in 2024 - IPC A61B8/06 

FIELD: medicine.

SUBSTANCE: invention relates to pediatric surgery, urology and ultrasound diagnostics, and can be used for ultrasound diagnostics of aorto-mesenteric compression of the left renal vein in left-sided varicocele in children. Performing the examination with the patient lying on his/her back, determining the maximum diameter of the dilated portion of the left renal vein and measuring its anteroposterior size, maximally narrowed area is determined proximally and its anteroposterior size is measured. Ratio of the diameter of the maximally expanded section to the diameter of the maximally narrowed section is calculated, and the maximum blood flow rate in the narrowed section is determined. After that, the sensor is installed in the upper one-third of the scrotum, during the Valsalva test and measuring in cross section anteroposterior size of maximally dilated vein of ungulate plexus of scrotum, blood flow direction is determined, and blood flow velocity or direction change is assessed during Valsalva test for 10 seconds. If the flow increases, but the direction does not change, an antegrade flow is established, if the flow increases in the opposite direction, retrograde flow is established, time of amplification or change of flow direction is measured in the obtained spectrogram and points are assigned to the obtained diagnostic parameters. Obtained points are summed up, and if the total score is from 8 to 10, the presence of aorto-mesenteric compression of the left renal in children with left-sided varicocele is diagnosed.

EFFECT: method enables diagnosing aorto-mesenteric compression of the left renal vein in left-sided varicocele in children by selecting the most significant renal blood flow values in various positions and using the Valsalva test.

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