Kidney Calculi
Mostrando 25-36 de 39 artigos, teses e dissertações.
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25. Can infundibular height predict the clearance of lower pole calyceal stone after extracorporeal shockwave lithotripsy?
PURPOSE: To evaluate the efficacy of extracorporeal shock wave lithotripsy (SWL) on lower calyceal calculi in relation to the renal anatomical factors and determine which of these factors can be used to select patients who will benefit from SWL. MATERIAL AND METHODS: We analyzed retrospectively 78 patients with single radiopaque lower calyceal stones treated
International braz j urol. Publicado em: 2009-04
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26. Outcomes of flexible ureteroscopic lithotripsy with holmium laser for upper urinary tract calculi
OBJECTIVE: To assess the perioperative and financial outcomes of flexible ureteroscopic lithotripsy with holmium laser for upper tract calculi in 44 patients. MATERIALS AND METHODS: Between February 2004 and September 2006, 44 patients treated for upper tract stone with flexible ureteroscopic lithotripsy were evaluated. Renal stones were associated with coll
International braz j urol. Publicado em: 2008-03
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27. Percutaneous nephrolithotomy with and without retrograde pyelography: a randomized clinical trial
OBJECTIVE: Since the introduction of percutaneous nephrolithotomy (PCNL), many changes have been added regarding the entrance to pyelocalyceal system such as insertion of the needle pointed to an opaque stone as a guided landmark. We aim at comparing the outcomes of managing renal calculi with and without retrograde pyelography. MATERIALS AND METHODS: In a r
International braz j urol. Publicado em: 2007-02
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28. Prediction of differential creatinine clearance in chronically obstructed kidneys by non-contrast helical computerized tomography
PURPOSE: We investigate the use of non-contrast helical computerized tomography (NCHCT) in the measurement of differential renal parenchymal volume as a surrogate for differential creatinine clearance (CrCl) for unilateral chronically obstructed kidney. MATERIALS AND METHODS: Patients with unilateral chronically obstructed kidneys with normal contralateral k
International braz j urol. Publicado em: 2004-04
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29. Tratamento transureteroscópico do cálculo ureteral com HOLMIUM: YAG laser / Transureteroscopic treatment of ureteral stones with the Holmium:YAG laser
Objetive: Holmium:YAG laser is the more recently method of intracorporeal lithotripsy of urinary calculi introduced in our area. The purpose of this study is to analyze the technique and to evaluate the immediate results and complications in the treatment of patients with ureteral calculi. Casuistry and Methods: Sixteen patients were treated, nine men and se
Publicado em: 2004
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30. Renal pelvic stones: choosing shock wave lithotripsy or percutaneous nephrolithotomy
Introduction of minimally invasive techniques has revolutionized the surgical management of renal calculi. Extracorporeal shock wave lithotripsy and percutaneous nephrolithotomy are now both well-established procedures. Each modality has advantages and disadvantages, and the application of each should be based on well-defined factors. These variables include
International braz j urol. Publicado em: 2003-06
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31. "Fatores de risco no tratamento do cálculo coraliforme por nefrolitotomia percutânea" / Risk factors for treatment of staghorn stones by percutaneous nephrolithotomy
During a percutaneous nephrolithotomy (PNL) procedure there are cases with no difficulties and no complications. In the other hand, there are cases very hard to treat with a higher surgical risk and post-operative complications.The goal of this study is to analyze the pre, intra and postoperative risk factors related to surgical complications and nonsuccess
Publicado em: 2003
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32. Scintigraphy and Doppler ultrasonography for the evaluation of obstructive urinary calculi
Forty-seven patients with unilateral obstructive calculi (12 males and 35 females) were submitted to 99mTc-diethylene triamine pentaacetic acid (DTPA) or 99mTc-dimercaptosuccinic acid (DMSA) scans for assessment of renal function. The scans revealed unilateral functional deficit in 68 and 66% of the patients, respectively. A calculus size of 1.1 to 2.0 cm wa
Brazilian Journal of Medical and Biological Research. Publicado em: 2001-06
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33. ClC-5 chloride channel and kidney stones: what is the link?
Nephrolithiasis is one of the most common diseases in the Western world. The disease manifests itself with intensive pain, sporadic infections, and, sometimes, renal failure. The symptoms are due to the appearance of urinary stones (calculi) which are formed mainly by calcium salts. These calcium salts precipitate in the renal papillae and/or within the coll
Brazilian Journal of Medical and Biological Research. Publicado em: 2001-03
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34. Mechanisms involved in calcium oxalate endocytosis by Madin-Darby canine kidney cells
Calcium oxalate (CaOx) crystals adhere to and are internalized by tubular renal cells and it seems that this interaction is related (positively or negatively) to the appearance of urinary calculi. The present study analyzes a series of mechanisms possibly involved in CaOx uptake by Madin-Darby canine kidney (MDCK) cells. CaOx crystals were added to MDCK cell
Brazilian Journal of Medical and Biological Research. Publicado em: 2000-01
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35. Coagulo fibrotico : nova causa de retenção de fragmentos pos leoc para calculo em calice inferior renal?
A prospective study was conducted with a sample of 20 patients presenting renal calculi specifically located in the lower calyx, treated with extracorporeal shock waves lithotripsy (ESWL), who presented fragments left behind in the lower pole ofthe kidney. In this study, we tried to confirm if there is a new reason for the existence of these residual fregmen
Publicado em: 1999
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36. Causes and prevention of calcium-containing renal calculi.
Kidney stones are common, and recurrences are the rule. At least 90% of patients with kidney stones probably have some identifiable metabolic risk factor. Effective prophylaxis is often available, but with the relatively low rate of recurrence, compliance with the treatment may be a problem. Studies are required to determine the cost-effectiveness of metabol