For a general discussion of renal calculi please refer to nephrolithiasis. The majority of staghorn calculi are symptomatic, presenting with fever, hematuria, flank pain and potentially septicemia and abscess formation. Staghorn calculi are composed of struvite chemically this is magnesium ammonium phosphate or MAP and are usually seen in the setting of recurrent urinary tract infection with urease-producing bacteria e. Proteus, Klebsiella, Pseudomonas and Enterobacter. Urease hydrolyzes urea to ammonium with an increase in the urinary pH
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Salud [online]. ISSN The formation of stones in the urinary system is characteristic of urolithiasis. When the stones are bigger than 20 mm long they are considered voluminous and staghorn when they fill the renal pelvis and branch into one or more of the calices.
Urinary stones could frequently compromise renal integrity and functionality. This descriptive and retrospective study aimed to describe the composition of voluminous and staghorn stones obtained from 67 patients who attended IICS from March, to April, and complied with the inclusion criteria.
Morphological analysis of kidney stones was made by applying mineralogical and morphological criteria described previously by Daudon et al. The more frequent types in the nucleus were IVa1 and IIa composed respectively of carbapatite calcium phosphate and weddellite calcium oxalate dihidrated while Ia composed of Whewhellite calcium oxalate monohydrated was the more frequent type in section and surface.
Open surgery was the more frequent technique to remove the stones 5 patients lost one kidney as an outcome of lithiasis. This results point the importance of the correct identification of the cause that generates the stones to select proper measures to avoid recurrence and severe complications.
Keywords : Urolithiasis; Voluminous stones; Staghorn stones; morphological analysis. All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License. Services on Demand Article. Spanish pdf Article in xml format Article references How to cite this article Automatic translation Send this article by e-mail. Cited by SciELO. Similars in SciELO. Cecilio Baez Campus Universitario - U. San Lorenzo, Parguay editorial iics.
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Three-dimensional Radiography of the Kidney
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Isadora E. Silva 1. Gabriela C. Wagner M.
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