title: [CHARACTERISTICS OF THE URETER CONTRACTIONS IN CHILDREN WITH CHRONIC PYELONEPHRITIS].
abstract: The article presents results of electrophysiological study of the function of the ureter in the frequency range of 0.6-35 Hz, conducted in 100 children aged 5 to 13 years with chronic pyelonephritis. Data of 35 healthy people were used as a control. It was shown that the features of ureter contractions were significantly different in the two groups. Marked decrease of amplitudes of signal harmonics was found at a frequency of 1.4 Hz in patients with pyelonephritis compared to controls. Myostimulation in pyelonephritis group has led to an approximation of harmonic amplitudes to the values of the control group.
authors.forename: V I
authors.initials: VI
authors.lastname: Goremykin
authors.forename: D A
authors.initials: DA
authors.lastname: Usanov
authors.forename: A P
authors.initials: AP
authors.lastname: Rytik
authors.forename: E E
authors.initials: EE
authors.lastname: Prosova
mesh_terms: D000200:Action Potentials / Q000502:physiology*; D000293:Adolescent; D016022:Case-Control Studies; D002648:Child; D002675:Child, Preschool; D002908:Chronic Disease; D004558:Electric Stimulation; D004566:Electrodes; D004576:Electromyography; D006801:Humans; D009119:Muscle Contraction / Q000502:physiology*; D011704:Pyelonephritis / Q000503:physiopathology*; D014513:Ureter / Q000294:innervation / Q000503:physiopathology*