Abstract:
INTRODUCTION AND OBJECTIVE:Despite guidelines, routine 24-hour urine testing is completed in <10% of high-risk, recurrent stone formers. Using surrogates for metabolic testing, such as key patient characteristics, could obviate the cost and burden of this test while providing information needed for proper stone prevention counseling. METHODS:We performed a retrospective study of 392 consecutive patients from 2007 to 2014 with ≥2 lifetime stone episodes, >70% calcium oxalate by mineral analysis, and ≥1 24-hour urine collection. We compared mean 24-hour urine values by age in decades. We used logistic regression and receiver operating characteristic (ROC) curve analysis to assess the predictive ability of age, gender, body mass index (BMI), and comorbidities to detect abnormal 24-hour urine parameters. RESULTS:The mean age of the cohort was 51 ± 16 years. Older age was associated with greater urinary oxalate (p-trend <0.001), lower urinary uric acid (UA) (p-trend = 0.007), and lower urinary pH (p-trend <0.001). A nonlinear association was noted between age and urinary calcium or citrate (calcium peaked at 40-49 years, p = 0.03; citrate nadired at 18-29 years, p = 0.001). ROC analysis of age, gender, and BMI to predict 24-hour urine abnormalities performed the best for hyperuricosuria (area under the curve [AUC] 0.816), hyperoxaluria (AUC 0.737), and hypocitraturia (AUC 0.740). Including diabetes mellitus or hypertension did not improve AUC significantly. CONCLUSIONS:In our recurrent calcium oxalate cohort, age significantly impacted urinary calcium, oxalate, citrate, and pH. Along with gender and BMI, age can be used to predict key 24-hour urine stone risk results. These data lay the foundation for a risk prediction tool, which could be a surrogate for 24-hour urine results in recurrent stone formers, who are unwilling or unable to complete metabolic testing. Further validation of these findings is needed in other stone populations.
journal_name
J Endouroljournal_title
Journal of endourologyauthors
Otto BJ,Bozorgmehri S,Kuo J,Canales M,Bird VG,Canales Bdoi
10.1089/end.2017.0352subject
Has Abstractpub_date
2017-12-01 00:00:00pages
1335-1341issue
12eissn
0892-7790issn
1557-900Xjournal_volume
31pub_type
杂志文章abstract:INTRODUCTION:Newer generation lithotriptors have been modified to induce less pain. We evaluated factors contributing to post-shock wave lithotripsy (SWL) pain and assessed potential benefits of preemptive analgesia using Rofecoxib, a COX-II inhibitor, and potential effects on stone passage rates. MATERIALS AND METHOD...
journal_title:Journal of endourology
pub_type: 杂志文章,随机对照试验
doi:10.1089/end.2008.0243
更新日期:2009-03-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Robotic prostatectomy is exploding into popular utilization throughout much of the United States. It is expected that the rise in the number of these cases into 2006 will continue exponentially. A significant amount of research has begun to focus on the anastomosis, because the robot allows unpre...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2007.9913
更新日期:2007-10-01 00:00:00
abstract::A new semiflexible and steerable cannula was designed for endoscopic reflux operations on infants and children. Because of its small diameter (0.6 mm; < 2F), it fits even through the 9F infant cystoscope. ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1994.8.131
更新日期:1994-04-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Whereas ureteroscopic lithotripsy is more efficacious than SWL in treating lower-ureteral stones, the same has not been universally said of its ability to treat proximal ureteral stones. Because failed proximal lithotripsy is often attributable to the complications associated with stone migration...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2004.18.862
更新日期:2004-11-01 00:00:00
abstract:PURPOSE:To assess the feasibility and report early outcomes of robot-assisted anatrophic nephrolithotomy (RAN) as a treatment modality for patients with complex staghorn calculi. PATIENTS AND METHODS:In this single-center prospective study, seven consecutive patients underwent RAN for complex staghorn calculi. After d...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2013.0597
更新日期:2014-03-01 00:00:00
abstract::The tissue effects of a laser are responsible for the therapeutic value as well as the potential for complications. Within certain constraints, the type and depth of energy effect can be controlled by the selection of the wavelength as well as of appropriate energy parameters. In a clinical endoscopic setting, however...
journal_title:Journal of endourology
pub_type: 杂志文章,评审
doi:10.1089/end.1993.7.389
更新日期:1993-10-01 00:00:00
abstract:OBJECTIVE:To assess the "body mass index" (BMI) (weight and length) of 12 flexible ureteroscopes (digital and fiber optic) along with the light cables and camera heads, to make the best use of our instruments. MATERIALS AND METHODS:Twelve different brand-new flexible ureteroscopes from four different manufacturers, al...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2017.0438
更新日期:2017-10-01 00:00:00
abstract:PURPOSE:To assess the efficacy, safety, and morbidity of tubeless percutaneous nephrolithotomy (PCNL) and compare it with standard PCNL. PATIENTS AND METHODS:A total of 135 patients (140 renal units) undergoing tubeless PCNL (group 1) from June 2000 to September 2007 were compared with a similar group of 185 (194 rena...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2007.0338
更新日期:2008-07-01 00:00:00
abstract:PURPOSE:In this study, we tried to design a scheme for performing transrectal ultrasonographic (TRUS)-biopsies that would be accurate and include the optimal number of cores. PATIENTS AND METHODS:We included in this study 600 consecutive patients with suspicious findings on a per-rectum examination and/or an elevated ...
journal_title:Journal of endourology
pub_type: 临床试验,杂志文章
doi:10.1089/end.2008.0260
更新日期:2009-06-01 00:00:00
abstract:: Aim: We sought to compare the outcomes of patients who underwent an open vs robotic ureteroneocystostomy for ureteral obstruction. Methods: Retrospective review was performed on adult patients who underwent primary ureteroneocy...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2019.0715
更新日期:2020-10-01 00:00:00
abstract:BACKGROUND PURPOSE:Restricture after internal urethrotomy is the major limitation to the long-term success of the procedure. The objective of this study was to evaluate the effect of intraurethral brachytherapy after internal urethrotomy or transurethral scar resection on recurrent urethral stricture. PATIENTS AND MET...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/089277901753205906
更新日期:2001-10-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Kidney stone disease is rare in the South African black (B) population and more prevalent in the white (W) population. Genetic studies have not previously examined this anomaly. The AGT Pro11Leu polymorphism in the alanine:glyoxylate aminotransferase (AGT) enzyme has been suggested as possibly pl...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2013.0617
更新日期:2014-05-01 00:00:00
abstract:OBJECTIVE:Symptomatic renal calculi found within caliceal diverticula are difficult to treat. We present a single-surgeon cohort of 21 consecutive patients undergoing percutaneous treatment of stones within caliceal diverticula over a 12-year period. PATIENTS AND METHODS:Each patient was managed by a one-stage percuta...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1999.13.83
更新日期:1999-03-01 00:00:00
abstract::The greatest difficulty in performing a laparoscopic pyeloplasty is the suturing of the ureteropelvic junction. The purpose of this study was to evaluate the use of nonperforating titanium vascular closure staple (VCS) clips to perform in laparoscopic ureteroureterostomy in the porcine model. Six female minipigs under...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1998.12.265
更新日期:1998-06-01 00:00:00
abstract:PURPOSE:To present the combination of laparoscopy and nephroscopy for the treatment of stones in pelvic ectopic kidneys. PATIENTS AND METHODS:The series included seven male and four female patients (mean age 43 +/- 9 years). Laparoscopy-assisted percutaneous nephrolithotomy (PCNL) was performed for caliceal stones in ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2007.9930
更新日期:2007-10-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Functional losses near 20% are seen in the operated kidney during partial nephrectomy. Resected healthy margins are small and ischemia time limited in the modern era. We hypothesize that reconstruction following tumor resection is modifiable and a significant cause of renal function injury. MATE...
journal_title:Journal of endourology
pub_type: 杂志文章,评审
doi:10.1089/end.2016.0055
更新日期:2016-05-01 00:00:00
abstract::The treatment results obtained in children using an unmodified Dornier HM3 or a Medstone STS lithotripter for renal and ureteral stones were compared. The Dornier HM3 was used to treat 28 renal and 10 ureteral stones, while the Medstone STS was used to treat 73 renal and 34 ureteral stones. The treatment results were ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1996.10.493
更新日期:1996-12-01 00:00:00
abstract:PURPOSE:To assess factors that affect prostate biopsy results following salvage whole gland cryoablation. PATIENTS AND METHODS:One hundred seventy-four patients underwent prostate biopsy following salvage whole gland cryoablation of the prostate in the Cryo-OnLine Database registry. Wilcoxon rank-sum and χ2 tests and ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2016.0715
更新日期:2017-05-01 00:00:00
abstract::Five patients with major (Grade IV) renal trauma required ureteral stent placement to facilitate urinary drainage. Three of these patients had stents placed for recurrent gross hematuria with flank pain. All three had obstructing blood clots present at the time of stent placement. The fourth patient had a stent placed...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1998.12.545
更新日期:1998-12-01 00:00:00
abstract:PURPOSE:To present our initial experience with single-port laparoscopic urologic surgery via the retroperitoneal approach using the Alexis wound retractor with flexible laparoscopic instrumentation. PATIENTS AND METHODS:Since December 2008, 14 patients have undergone single-port laparoscopic surgery for various urolog...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2009.0254
更新日期:2009-11-01 00:00:00
abstract:PURPOSE:To determine the composition and the extent of crystalline (and other) encrustation on ureteral catheters inserted under sterile conditions in stone formers, in comparison with catheters of the same type inserted in nonstone formers for the same time but for different clinical reasons. MATERIALS AND METHODS:Fo...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2004.18.550
更新日期:2004-08-01 00:00:00
abstract:BACKGROUND AND PURPOSE:It is known that extracorporeal shock wave lithotripsy (SWL) may be improved by increasing cavitation using tandem shock waves. However, fluid is needed for the cavitation to work. The purpose of this research was to evaluate the importance of a fluid-filled expansion chamber in enhancing stone f...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2008.0334
更新日期:2009-04-01 00:00:00
abstract:OBJECTIVES:To assess the prevalence of preoperative anemia and the impact of preoperative anemia and blood transfusion requirement on 30- and 90-day complications in a cohort of patients undergoing robot-assisted radical cystectomy with intracorporeal urinary diversion (iRARC). PATIENTS AND METHODS:IRARC was performed...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2016.0730
更新日期:2017-02-01 00:00:00
abstract:PURPOSE:We established a new strategy for nonpalpable testis, including intra-abdominal testis, testicular nubbins, and intracanalicular testis, to correct these conditions by laparoscopic procedures. PATIENTS AND METHODS:Of the 53 boys (mean age, 24.5 months), nonpalpable testis was on the right side in 13, on the le...
journal_title:Journal of endourology
pub_type: 临床试验,杂志文章
doi:10.1089/end.2010.0496
更新日期:2011-04-01 00:00:00
abstract::Laparoscopic living-donor nephrectomy has decreased the disincentives to live renal donation with a risk of complications similar to that of open donor nephrectomy. We report a patient who developed chylous ascites after an otherwise-uneventful laparoscopic donor nephrectomy. On MEDLINE search, we could find only two ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2005.19.839
更新日期:2005-09-01 00:00:00
abstract::Laparoscopic pyeloplasty represents one of the more advanced reconstructive procedures for the urologist. While early reports were replete with long operative times, there have been several changes that have added to the efficiency of the procedure. In our practice, we have found three changes to be of greatest value:...
journal_title:Journal of endourology
pub_type: 杂志文章,评审
doi:10.1089/089277904773582750
更新日期:2004-04-01 00:00:00
abstract:: Background: Nonmuscle-invasive bladder cancer is diagnosed, treated, and monitored using cystoscopy. Artificial intelligence (AI) is increasingly used to augment tumor detection, but its performance is hindered by the limited availability of cystoscopic images required to ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2020.0919
更新日期:2020-12-04 00:00:00
abstract:INTRODUCTION:Laparoscopic trocars typically maintain pneumoperitoneum using trap door valves and silicone seals. However, valves and seals hinder passage of instruments, cause lens smudging, trap specimens and needles being removed from the abdominal cavity, and lose their seal with repeated instrument exchange. AIM:T...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2009.0376
更新日期:2009-09-01 00:00:00
abstract:BACKGROUND:Percutaneous nephrolithotomy (PCNL) requires the urologist to have detailed knowledge of the stone and its relationship with the renal anatomy. Immersive virtual reality (iVR) provides patient-specific three-dimensional models that might be beneficial in this regard. Our objective is to present the initial e...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2018.0626
更新日期:2019-04-01 00:00:00
abstract:PURPOSE:To determine the effects on semen of extracorporeal shockwave lithotripsy for distal-ureteral stones. PATIENTS AND METHODS:We examined the semen of 62 patients 1 day before and 1 week and 3 months after SWL for distal-ureteral stones. The results were compared with those of 62 patients similarly treated for up...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2006.20.483
更新日期:2006-07-01 00:00:00