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PubMed1987

Intravenous urography as a prognostic indicator in vesical carcinoma.

A retrospective analysis of 1378 cases of urinary bladder tumor, showed that unilateral or bilateral ureteric obstruction seen on an intravenous urogram at presentation, was significantly associated with both decreased overall survival and tumor-free interval. A tumor shadow shown on standard projections did not correlate with survival. At 24 months only 35% of the ureteric obstruction group were tumor-free as compared with 65% of the unobstructed group. Survival at 5 years was 27% in the obstructed ureter group and 73% in the non-obstructed group. This difference although less marked, persists at 9-year follow-up.

Adult↗
PubMed1987

Experiences with iohexol (Omnipaque) at urography.

In a prospective study of 547 pediatric intravenous pyelographies with a new non-ionic contrast medium (iohexol), only 5 (0.9%) minor reactions were observed. The higher price seems justified, and iohexol is strongly recommended in neonates as well as older children.

Adolescent↗
PubMed1987

Assessment of residual urine volume during routine cystography and urography.

The residual urine volume after voiding was measured by a modified cardiac formula in patients who were examined by means of voiding cystography. The reliability of the formula was tested in an experimental situation. A high degree of accuracy in correlating computed volumes with instilled volumes was found.

Humans↗
PubMed1986

Response of patients to informed consent for excretory urography.

The desirability of obtaining written informed consent for low-risk radiologic procedures has been the subject of controversy. A group of 80 patients was studied to evaluate the effect of informed consent for excretory urograms on: (1) incidence of contrast reactions; (2) discomfort during the procedure; (3) level of patients' anxiety before and after the procedure; (4) patients' perception of the procedure; and (5) desirability of informed consent from the patients' viewpoint. Results revealed no statistically significant difference between the 2 groups in the incidence of reactions, discomfort, perception of the examination, or anxiety level prior to the procedure. The informed consent group had a statistically greater factual knowledge of the procedure evaluated objectively (P less than 0.01). Of the patients who received the written consent form, 83% regarded it as helpful and none viewed it as harmful or refused the examination. In the control group, 32% desired more information.

Adult↗
PubMed1987

Comparison of two strengths of iohexol and iothalamate in urography.

Iohexol and iothalamate were studied in 2 strengths and compared with results from a previous trial of Iopamidol and 4 ionic agents. Scoring was consistent from trial to trial. No worthwhile increase in density was achieved at high doses using nonionics and pyelographic distention was less than for ionic media. The timing of the nephrogram was the same for ionics and nonionics. There is no need to adopt a different film sequence for nonionic media. Urticarial reactions were identical for all 4 media studied in this trial. Nonionic media perform as well as other media; at lower doses they are much better than meglumine salts of ionic media.

Adult↗