Disease relevance of Urography

• Twenty-two of 29 (76 per cent) diabetic patients with a creatinine level of more than 2 mg/100 ml had exacerbation of renal failure following intravenous pyelography [1].
• Shock and noncardiogenic pulmonary edema following meglumine diatrizoate for intravenous pyelography [2].
• In conclusion, ACE inhibition markedly improves the sensitivity of rapid sequence urography and hippurate renography in the diagnosis of renovascular hypertension in the two-kidney, one clip Goldblatt hypertensive dog [3].
• Bilateral parotid enlargement ("iodide mumps") following excretory urography [4].
• We report a case in which delayed hypersensitivity to iohexol, a nonionic intravenous contrast agent commonly used in excretory urography, resulted in a bi-phasic allergic response [5].

High impact information on Urography

• At enrolment and 4 years' follow-up we estimated GFR from the plasma clearance of 51Cr-labelled edetic acid (EDTA), and did intravenous urography [6].
• Serum samples obtained from 40 patients, before and 30 min after undergoing i.v. pyelography, revealed no significant change in total hemolytic C activity; 34 patients received sodium and methylglucamine diatrizoate and six received sodium iothalamate [7].
• This report, in context with the increasing number of case reports of similar findin.gs, indicates that intravenous pyelography is dangerous in patients with juvenile onset diabetes who have a creatinine level of more than 5 mg/100 ml [1].
• We therefore studied the prevalence of RPN in 76 patients with long-standing IDDM and in 34 age-matched control subjects by intravenous urography [8].
• In order to clarify the effects of RCM on the complement system, three different parameters (CH50, C3a, and C1 inhibitor) were measured in 20 patients undergoing intravenous pyelography for diagnostic purposes [9].

Chemical compound and disease context of Urography

• Comparative clinical studies have shown renal cortical scintigraphy, using technetium-99m (99mTc)-labeled glucoheptonate or dimercaptosuccinic acid (DMSA), to be significantly more sensitive than either intravenous pyelography or renal sonography in the diagnosis of acute pyelonephritis [10].
• Hydralazine predisposes to acute cutaneous vasculitis following urography with iopamidol [11].
• The present study was aimed at determining the risk of tubular nephrotoxicity in patients with mild to moderate renal insufficiency who underwent intravenous urography (IVU) with the nonionic dimeric contrast agent iodixanol (Visipaque, Nycomed Imaging, Oslo, Norway) [12].
• The administration of the nonionic dimeric contrast medium iodixanol, or of the nonionic monomer iopromide, entailed a low nephrotoxic potential in patients with mild to moderate renal insufficiency undergoing excretory urography [12].
• Bronchospasm during excretory urography: lack of specificity for the methylglucamine cation [13].

Biological context of Urography

• Followup included 2 resistive index measurements by Doppler ultrasound of the treated and the contralateral kidney, at least 2 blood pressure measurements 1 week apart and excretory urography as well as determination of plasma renin activity in 9 patients [14].
• In order to perform biological monitoring of exposure to radiation and contrast media, we evaluated the micronucleus count (MN) and the mitotic index (MI) in peripheral blood lymphocytes from patients undergoing excretory urography with diatrizoate (20 patients) and ioxaglate (20 patients) [15].
• Dynamic gadolinium-enhanced magnetic resonance urography for assessing drainage in dilated pelvicalyceal systems with moderate renal function: preliminary results and comparison with diuresis renography [16].
• Simultaneous urography and determination of glomerular filtration rate. A comparison of total plasma clearances of iohexol and 51Cr-EDTA in plegic patients [17].

Anatomical context of Urography

• Furosemide-enhanced MR urography provided fine anatomic and functional detail of both the kidneys and urinary tract (n = 6) [18].
• The authors compared the effect of glucagon (1 mg I.V.) and a placebo on visualization of the collecting systems and ureters in 185 adults undergoing routine excretory urography [19].
• Segmental renal vein blood was collected in 9 hypertensive patients who had a focal renal lesion on excretory urography and/or a high peripheral plasma renin activity [20].
• Isotope renography was compared to excretory urography, voiding cystourethrography and endogenous creatinine clearances in 52 spinal cord injury patients [21].
• Induction of micronuclei in lymphocytes of patients undergoing excretory urography with ioversol [22].

Associations of Urography with chemical compounds

• After urography and cholangiography short-lived increases of the serum thyroxine occurred in a few patients, but the mean thyroxine and triiodothyronine concentration did not change [23].
• Urography with iohexol was found to give better parenchymal opacification, pelvocalyceal opacification, and overall quality [24].
• Renal biopsies were performed in 211 patients which 10 days of excretory urography or renal arteriogrpahy in which diatrizoate, iothalamate or ioxithalamate had been used [25].
• Clinical intravenous urography: comparative trial of ioxaglate and iopamidol [26].
• When combined with furosemide and ureteral compression, MR urography provides fine detail and reflects function [18].

Gene context of Urography

• Thus CEA in urine and/or serum cannot substitute for cystourethroscopy, urography and exfoliative cytology in the follow-up of patients previously treated for urothelial carcinoma [27].
• Preoperative examinations included intravenous urography (IVU), transrectal sonography of the prostate (TRSP), cystometry, uroflowmetry, and urethral pressure profilometry (UPP) [28].
• Ultrasound may replace urography in screening pediatric patients with uncomplicated urinary tract infections but without vesicoureteral reflux [29].
• Re: Excretory urography with glucagon [30].
• Excretory urography also demonstrated only the dominant mass of the Wilms tumor [31].

Analytical, diagnostic and therapeutic context of Urography

• Abdominal radiography, excretory urography, retrograde pyelography, and computed tomography were performed in two patients who had undergone retrograde pyelography with thorium dioxide (Thorotrast) approximately 40 years ago [32].
• The diagnostic studies for vaginal ureteral ectopia include excretory urography, radionuclide scanning, ultrasonography and administration of oral phenazopyridine in conjunction with careful vaginoscopic examination [33].
• In cases of a positive BTA stat test but negative cystoscopy, excretory urography or renal ultrasound, random biopsies and collected ureteral urine samples for ureteral cytology were obtained [34].
• Recent work has shown that polyethylene glycol-electrolyte lavage solutions provide adequate cleansing in preparation for colonoscopy, barium enema, intravenous pyelography, and colon surgery [35].
• Prompt and appropriate genitourinary tract examination by physical examination, urinalysis, serum creatinine levels and ultrasonography or excretory urography is recommended as a standard in all children with esophageal atresia, with further investigations ordered if indicated by the results of the studies [36].

References