title: Evaluation of renal functional changes after extracorporeal piezoelectric lithotripsy (EPL) by radionuclide studies.
abstract: Extracorporeal piezoelectric lithotripsy (EPL) has been recently introduced as a non-invasive method for treatment of renal and gall bladder stones. Thirty seven patients treated with EPL for renal calculi were the subjects of radionuclide renal studies. The aim was to evaluate the effects of EPL as a new technology by radionuclide renography. 99Tcm-DTPA and 99Tcm-DMSA studies were performed pre-EPL and one day and one week post-EPL. Various parameters of the sequential radionuclide studies were evaluated. One day post-EPL, changes in parenchymal transit time index, relative uptake function, glomerular filtration rate, time-activity curves and kidney dimensions were observed. At one week post-EPL, different parameters returned to baseline status in the majority of cases. The study indicates that EPL has a variety of effects on the kidney that could be demonstrated and followed by sequential radionuclide renal studies. Furthermore the study suggests spacing of EPL sessions by approximately one week.
authors.affiliation: Department of Nuclear Medicine, Faculty of Medicine, Kuwait University.
authors.forename: A H
authors.initials: AH
authors.lastname: Elgazzar
authors.forename: A H
authors.initials: AH
authors.lastname: Mahmoud
authors.forename: M
authors.initials: M
authors.lastname: el-Sayed
authors.forename: T E
authors.initials: TE
authors.lastname: Nilson
authors.forename: H M
authors.initials: HM
authors.lastname: Abdel-Dayem
authors.forename: G
authors.initials: G
authors.lastname: Fettich
authors.forename: S
authors.initials: S
authors.lastname: al-Mohannadi
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007669:Kidney Calculi / Q000503:physiopathology / Q000628:therapy*; D008096:Lithotripsy; D008297:Male; D008875:Middle Aged; D015609:Organotechnetium Compounds; D011866:Radioisotope Renography; D004113:Succimer; D019783:Technetium Tc 99m Dimercaptosuccinic Acid; D016284:Technetium Tc 99m Pentetate
chemical_list: D015609:Organotechnetium Compounds; D019783:Technetium Tc 99m Dimercaptosuccinic Acid; D004113:Succimer; D016284:Technetium Tc 99m Pentetate