Test F+10 SP: un nuovo metodo angioscintigrafico per la diagnosi dell'uropatia ostruttiva

Translated title of the contribution: [Autom. eng. transl.] Test F + 10 SP: a new angioscintigraphic method for the diagnosis of obstructive uropathy

Pierfrancesco Bassi, Alessandro D'Addessi, Matteo Vittori, Daniele D'Agostino, Girolamo Tartaglione

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

[Autom. eng. transl.] Purpose of the work The aim of our study was to evaluate the results obtained in the differential diagnosis between obstruction and non-obstruction in cases of dilatation of the urinary tract, comparing the method of renal scintigraphy with the patient in the supine position and injection of furosemide 15 minutes before the radiopharmaceutical (classic F-15 test) and a new protocol with patient in a sitting position (SP = Sitting Position) and injection of furosemide 10 minutes after that of the radiopharmaceutical (test F + 10 SP). Materials and methods 34 patients with ultrasound diagnosis of hydronephrosis (in 7 bilateral cases) underwent the two angiofotoscintigraphic examinations compared (F-5 classic and F + 10 SP) with one week interval. All the traces were analyzed by the same doctor, not aware of the patients' medical history. The results were classified as: "normal", "non-obstructive dilation" (only for F + 10 SP test), "obstruction", "misunderstanding" and "not applicable". Results In the 68 renal units enrolled in the study, the F + 10 SP test documented a normal condition in 30.8% of cases (n = 21), dilation without obstruction in 30.8% (n = 21) and obstruction in 36 , 8% (n = 25); a case was equivocal. The traditional F-15 test instead documented the condition of nomality in 51.5% of cases (n = 35), obstruction in 29.4% (n = 20); it was not applicable in 2.8% (n = 2) and was equivocal in 16.3% of cases (n = 11). No complications were recorded with the use of the F + 10 SP test while, during the F-15 test, 13 patients complained of a strong bladder repetition, 1 hypotension, 3 renal colic and 4 abandoned the study due to the strong urination stimulus. All 20 renograms that were "clogged" on the F-15 test were also on the F + 10 SP test. Discussion The method we propose seems to be particularly advantageous in identifying the possible obstruction associated with pyelocalicectasia. In fact, thanks to the combination of a sitting position and an optimized use of Lasix, the percentage of exams reported as "equivocal" has been significantly reduced, from 16% of the classic test to less than 1.5% of the new test (F + 10 SP). Final message The F + 10 SP test is well tolerated by patients and represents one of the most promising tools in the differential diagnosis between obstruction and non-obstruction in cases of dilation of the upper urinary tract.
Translated title of the contribution[Autom. eng. transl.] Test F + 10 SP: a new angioscintigraphic method for the diagnosis of obstructive uropathy
Original languageItalian
Title of host publicationLibro abstract dell'84° congresso SIU
Pages85
Number of pages1
Publication statusPublished - 2011
Event84° congresso SIU - Roma
Duration: 23 Oct 201126 Oct 2011

Conference

Conference84° congresso SIU
CityRoma
Period23/10/1126/10/11

Keywords

  • ANGIOSCINTIGRAFIA
  • UROPATIA OSTRUTTIVA

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