Search results for "Calculi"
showing 10 items of 91 documents
Percutaneous Stone Manipulation
1981
Percutaneous stone manipulation by direct ultrasound disintegration, extraction or chemolysis was done on 34 patients. A total of 15 patients presented with an operatively established nephrostomy, while percutaneous nephrostomy and subsequent dilation of the nephrostomy channel were done in 19. The rate of complete stone clearance was 19 of 20 stones after percutaneous nephrostomy and 8 of 16 stones in the group with an operatively established nephrostomy. The primary goal, to remove obstructing pelvic stones, was achieved in all cases. There were no untoward side effects, such as back pressure damage owing to flushing of the collecting system during ultrasound disintegration, or persistent…
Extracorporeal shock wave lithotripsy of urinary calculi: experience in treatment of 3,278 patients using the Siemens Lithostar and Lithostar Plus.
1991
Between March 1986 and June 1989, 3,278 patients with upper urinary tract calculi were treated at our medical center with the Lithostar lithotriptor. The stones were located in the calices in 41.9% of the cases, renal pelvis in 25.7% and ureter in 32.4%. Perirenal hematoma was noted in 0.5% of the patients but this resolved spontaneously within a few days. Auxiliary procedures were performed in 37.3% of the cases, including Double-J stent and ureteral catheter in 26.8%, ureterorenoscopy in 2.1%, percutaneous nephrostomy in 1.6%, Zeiss loop in 4.3% and percutaneous nephrolithotripsy in 3.5%. Of the treatments 83.1% were performed without general or regional anesthesia. Followup after 3 month…
Treatment of paediatric urolithiasis by extracorporeal shock-wave lithotripsy.
1988
Non-surgical removal of renal and ureteral stones has proven successful in adults. In this study, 21 paediatric patients have been treated with the first generation extracorporeal shock-wave lithotriptor and an additional 13 children with a second generation local shock-wave lithotriptor. A total of 47 stones was treated. Treatment-related complications such as colics (17%/18.8%) or fever (8.3%/6.2%) were minimal. Stone passage occurred in 93% and 100%, respectively of each group. Open surgery is still the treatment of choice for large staghorn calculi. Extracorporeal shock-wave lithotripsy can be performed successfully in paediatric nephrolithiasis with stones of limited size.
Ultrasound litholapaxy of a staghorn calculus.
1977
Abstract A method for removal of a staghorn calculus from the kidney through 1 channel of a U-tube nephrostomy is presented. An ultrasound lithotriptor provided a safe and quick alternative to surgical treatment
Imaging modalities and treatment of paediatric upper tract urolithiasis: A systematic review and update on behalf of the EAU urolithiasis guidelines …
2020
Prompt diagnosis and treatment of paediatric urolithiasis are required to avoid long term sequelae of renal damage.To systematically review the literature regarding the diagnostic imaging modalities and treatment approaches for paediatric urolithiasis.PubMed, Science Direct, Scopus and Web of Science were systematically searched from January 1980-January 2019. 76 full-text articles were included.Ultrasound and Kidney-Ureter-Bladder radiography are the baseline diagnostic examinations. Non-contrast Computed Tomography (CT) is the second line choice with high sensitivity (97-100%) and specificity (96-100%). Magnetic Resonance Urography accounts only for 2% of pediatric stone imaging studies. …
Extracorporeal shock wave lithotripsy with ultrasound-guided lithostar plus.
1992
Abstract Since 1989, the Siemens lithostar plus, an upgrade of the lithostar with the ultrasonically guided overhead module, has been available for clinical use. This unit may be used for the treatment of either biliary or urinary calculi. We report on 75 patients with urinary calculi treated between March 1989 and June 1990 with the lithostar overhead module. Stone localization showed a rate of: caliceal stones 33.5%, pelvic stones 44%, upper ureteral stones 9.3% and lower ureter stones 13%. The overall disintegration rate was 86%, with a stone-free rate after 3 months of 78%.
Gas-containing renal stones: a red flag for renal infection.
2022
Background Gas in the renal excretory system is described as a consequence of recent procedures but it can be a sign of severe conditions such as fistulas or infections; however, gas-containing renal stones are only rarely encountered. Purpose To describe the association of gas-containing renal stones and urinary tract infection. Material and Methods We performed a retrospective evaluation of the clinical and imaging findings in a series of six patients with gas-containing renal stones and compared our findings with those of patients with gas-containing renal stones reported in the literature. Urine and stone cultures were used as a diagnostic standard for urinary tract infection. Results I…
Future perspectives of flexible ureteroscopy
2019
Purpose of review In the recent past, there were numerous and promising technological developments in the field of endourology leading to tremendous changes in the management of urolithiasis. This review will try to weave ancient stone therapy with the very modern advent of flexible ureteroscopy and recent developments in robotic systems. Recent findings In the broad field of flexible ureteroscopy for stone surgery, new disposable scopes have been developed and established. The use of robotic instruments is also a new and interesting concept. Additionally, clinical research on the understanding of laser features leads to a specific and appropriate use of lasers for lithotripsy, both holmium…
Interrater reliability of ultrasound in the diagnosis of sialolithiasis
2019
The aim of this study was to assess the interrater reliability of ultrasound for diagnosing sialolithiasis. A total of 100 consecutive patients with signs of obstructive sialadenopathy were evaluated. The patients all underwent ultrasound examinations in a standardized manner conducted by one specialist with extensive experience in the management of salivary gland disorders and proficiency in head and neck ultrasonography. The video recordings were sent to six colleagues with comparable experience without providing any further information about the patients' medical history and physical examination. The overall agreement between the seven observers was substantial, with a κ of 0.765 for th…
Sialolitiasis parotídea del conducto de Stensen
2006
La litiasis salival es una afectación consistente en la obstrucción mecánica de una glándula salival o de su conducto excretor, debido a la formación de concreciones calcáreas o sialolitos, lo que determina una ectasía salival, pudiendo provocar la dilatación posterior de la glándula. La sialolitiasis supone el 30 % de la patología salival y afecta principalmente a las glándulas submaxilares (83 a 94 %), seguida por la glándula parótida (4 a 10 %) y las glándulas sublinguales (1 a 7 %). En este trabajo presentamos el caso de un paciente varón de 45 años que presentaba mal olor y sabor de boca en el momento de las comidas y afecto de un cálculo salival a nivel del conducto de Stensen izquier…