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. 1977 Jun 18;116(12):1359–1363.

La potomanie: réévaluation des epreuves d'investigation et présentation inhabituelle avec hydronéphrose et méqavessie

Potomania: re-evaluation of the diagnostic tests and unusual presentation with hydronephrosis and megabladder

C Caron, P Montambault, T Nawar, G E Plante, N Kandalaft
PMCID: PMC1879318  PMID: 861897

Abstract

Three cases of compulsive polydipsia previously diagnosed as diabetes insipidus are presented. Abnormally dilated bladder and pyelocalyceal systems were accompanying features, as previously described for diabetes insipidus, particularly of renal orign. Results of the hypertonic saline (Hickey-Hare) test were positive in only one case. Results of restriction of liquids followed by intravenous injection of vasopressin (Miller test) favoured a diagnosis of complete diabetes insipidus. These two tests cannot, therefore, exclude compulsive polydipsia. The features suggesting a diagnosis of compulsive water drinking are low plasma osmolality, a decrease in 24-hour urine output following water restriction, and abnormal behaviour. The diagnosis is confirmed by an 18-hour dehydration test done after gradual fluid restriction, which favours partial restoration of the papillary osmotic gradient.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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