Atypical Causes of Urinary Tract Obstruction

Acute kidney injury due to urinary tract obstruction invariably suggests lower urinary tract obstruction or bilateral ureteric obstruction since obstruction of a single kidney while the contralateral kidney is normal and not obstructed would not cause a perceptible rise in creatinine. Assuming a tot...

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Main Authors: Ernie Yap, Moro Salifu, Tahir Ahmad, A. Sanusi, Anthony Joseph, Mary Mallappallil
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:Case Reports in Nephrology
Online Access:http://dx.doi.org/10.1155/2019/4903693
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author Ernie Yap
Moro Salifu
Tahir Ahmad
A. Sanusi
Anthony Joseph
Mary Mallappallil
author_facet Ernie Yap
Moro Salifu
Tahir Ahmad
A. Sanusi
Anthony Joseph
Mary Mallappallil
author_sort Ernie Yap
collection DOAJ
description Acute kidney injury due to urinary tract obstruction invariably suggests lower urinary tract obstruction or bilateral ureteric obstruction since obstruction of a single kidney while the contralateral kidney is normal and not obstructed would not cause a perceptible rise in creatinine. Assuming a total body volume of 42 L, 70 kg male that generates approximately 1400 mg of creatinine daily (20 mg/kg/day) who has complete urinary tract obstruction would experience a 3.33 mg/dL per day increase in serum creatinine. Thus, for an individual who had prior normal renal function and who presents with a creatinine of 30 mg/dL, one could surmise that the obstructive pathology had lasted at least 10 days. However, the rise in serum creatinine is a poor marker of renal injury and subsequent prognosis. Urinary tract obstruction leading to AKI can be due to a variety of causes, and its management is tailored to the underlying etiology. This case series describes the varied clinical course of four patients at our center who experienced AKI from atypical causes of obstructive uropathy. Current and future diagnostic modalities and caveats in the treatment of this disease entity are also discussed.
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spelling doaj-art-1a7721ff0b224224acb456a91c7cf0472025-08-20T02:02:00ZengWileyCase Reports in Nephrology2090-66412090-665X2019-01-01201910.1155/2019/49036934903693Atypical Causes of Urinary Tract ObstructionErnie Yap0Moro Salifu1Tahir Ahmad2A. Sanusi3Anthony Joseph4Mary Mallappallil5State University of New York, Downstate Medical Center, Brooklyn, NY 11203, USAState University of New York, Downstate Medical Center, Brooklyn, NY 11203, USAState University of New York, Downstate Medical Center, Brooklyn, NY 11203, USAState University of New York, Downstate Medical Center, Brooklyn, NY 11203, USAState University of New York, Downstate Medical Center, Brooklyn, NY 11203, USAState University of New York, Downstate Medical Center, Brooklyn, NY 11203, USAAcute kidney injury due to urinary tract obstruction invariably suggests lower urinary tract obstruction or bilateral ureteric obstruction since obstruction of a single kidney while the contralateral kidney is normal and not obstructed would not cause a perceptible rise in creatinine. Assuming a total body volume of 42 L, 70 kg male that generates approximately 1400 mg of creatinine daily (20 mg/kg/day) who has complete urinary tract obstruction would experience a 3.33 mg/dL per day increase in serum creatinine. Thus, for an individual who had prior normal renal function and who presents with a creatinine of 30 mg/dL, one could surmise that the obstructive pathology had lasted at least 10 days. However, the rise in serum creatinine is a poor marker of renal injury and subsequent prognosis. Urinary tract obstruction leading to AKI can be due to a variety of causes, and its management is tailored to the underlying etiology. This case series describes the varied clinical course of four patients at our center who experienced AKI from atypical causes of obstructive uropathy. Current and future diagnostic modalities and caveats in the treatment of this disease entity are also discussed.http://dx.doi.org/10.1155/2019/4903693
spellingShingle Ernie Yap
Moro Salifu
Tahir Ahmad
A. Sanusi
Anthony Joseph
Mary Mallappallil
Atypical Causes of Urinary Tract Obstruction
Case Reports in Nephrology
title Atypical Causes of Urinary Tract Obstruction
title_full Atypical Causes of Urinary Tract Obstruction
title_fullStr Atypical Causes of Urinary Tract Obstruction
title_full_unstemmed Atypical Causes of Urinary Tract Obstruction
title_short Atypical Causes of Urinary Tract Obstruction
title_sort atypical causes of urinary tract obstruction
url http://dx.doi.org/10.1155/2019/4903693
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AT tahirahmad atypicalcausesofurinarytractobstruction
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