Abstract:
INTRODUCTION:A "Negative" ureteroscopy (URS) is defined as a URS in which no stone is found during the procedure. It may occur when the stone has already been passed spontaneously or when it is located outside the collecting system. The aim of the study was to outline risk factors for Negative-URS. MATERIALS AND METHODS:We retrospectively analyzed the possible risk factors for Negative-URS from a database of 341 URS cases. In every case where presumptive ureteral stone was not found, a formal nephroscopy as well as a whole collecting system revision was completed. The Negative-URS group was compared with the non-Negative-URS group, in terms of patient and stone characteristics. RESULTS:The database of 341 URS cases included 448 different stone instances, of which 17 (3.8%) were negative and 431 (96.2%) were therapeutic. There was no statistical significant difference between the two groups concerning age, body mass index, stone location in the ureter, stone laterality, and whether the patient was prestented. The stepwise multiple logistic regression revealed three important risk factors, namely CT stone surface area (p < 0.0001), radiopacity of the stone at kidney, ureter, and bladder radiograph (KUB; p = 0.0004), and gender (p = 0.0011) with an area under the curve of 0.91. Women were found to have more possibilities to have a negative procedure by four- to sevenfold than men depending on the model. A nonradio-opaque stone at KUB is more likely to be correlated with a Negative-URS by 9.5- to 11-fold more than a radiopaque stone at KUB. For each increase of 1 U in CT stone surface area, there is an increase of 10%-12% to be non-negative. CONCLUSIONS:Female gender, a nonradio-opaque stone at KUB, and a smaller stone surface were statistically significantly different in the Negative-URS population.
journal_name
J Endouroljournal_title
Journal of endourologyauthors
Katafigiotis I,Sabler IM,Heifetz EM,Rosenfeld A,Stavros S,Lorber A,Latke A,Yutkin V,Hidas G,Landau EH,Pode D,Gofrit ON,Duvdevani Mdoi
10.1089/end.2018.0291subject
Has Abstractpub_date
2018-09-12 00:00:00pages
825-830issue
9eissn
0892-7790issn
1557-900Xjournal_volume
32pub_type
杂志文章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:We recently described a novel technique of percutaneous non-dismembered endopyeloplasty (Fenger type). Herein, we extend this transrenal technique further and report percutaneous dismembered endopyeloplasty (Anderson-Hynes type). MATERIALS AND METHODS:In five pigs with unilateral ureteropelvic junction (UPJ) o...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2005.19.210
更新日期:2005-03-01 00:00:00
abstract::Seventy-four consecutive cases of ureteral stones listed for ureteroscopic lithotripsy were studied prospectively. In all cases, the Wolf 7.5F or 9F ureteroscope was used in conjunction with the Swiss Lithoclast system. Dormia baskets were employed on four occasions to prevent forward propulsion of fragments. Ureteros...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1998.12.341
更新日期:1998-08-01 00:00:00
abstract:OBJECTIVE:The aim of our study was to evaluate if there is any advantage of three-dimensional helical computed tomography (3D-HCT) over intravenous urogram (IVU) in the morphometric and morphological analysis of lower pole spatial anatomy of the kidney. PATIENTS AND METHODS:We analyzed 52 renal collecting systems in 3...
journal_title:Journal of endourology
pub_type: 临床试验,杂志文章
doi:10.1089/end.2009.0262
更新日期:2009-12-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Despite the frequency at which urologists endoscopically estimate lesion size, their accuracy has not been established. Our objectives were to determine the accuracy of cystoscopic and ureteroscopic estimates of lesion size using in vitro models of the urinary tract and to assess potential impact...
journal_title:Journal of endourology
pub_type: 杂志文章,随机对照试验
doi:10.1089/end.2013.0214
更新日期:2013-09-01 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:PURPOSE:Laparoscopic surgery for large renal lesion or kidneys with chronic inflammation has proved to be technically challenging. Hand-assisted laparoscopic surgery might be useful in these complex cases, as it provides surgeons the benefits of tactile feedback, digital retraction, and facilitated dissection of the re...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2004.18.770
更新日期:2004-10-01 00:00:00
abstract:INTRODUCTION:Traditional techniques for obtaining percutaneous renal access utilize continuous fluoroscopy. In an attempt to minimize radiation exposure, we describe a novel laser direct alignment radiation reduction technique (DARRT) for percutaneous access and test it in a bench-top model. METHODS:In this randomized...
journal_title:Journal of endourology
pub_type: 杂志文章,随机对照试验
doi:10.1089/end.2016.0170
更新日期:2016-11-01 00:00:00
abstract::Since 1993, we have treated patients having lower urinary tract symptoms and benign prostatic obstruction using the high-energy transurethral microwave thermotherapy (HE-TUMT) protocol (Prostasoft; software version 2.5). This study was conducted to investigate the outcome and durability of this treatment. A series of ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1997.11.285
更新日期:1997-08-01 00:00:00
abstract:OBJECTIVES:We developed minimal incision-assisted retroperitoneoscopic surgery (MARP) in an attempt to pursue optimized patient-related benefits. We evaluated the clinical value of MARP for upper urinary tract diseases compared with pure retroperitoneoscopic surgery (PRPS). PATIENTS AND METHODS:Between January 2003 an...
journal_title:Journal of endourology
pub_type: 临床试验,杂志文章
doi:10.1089/end.2009.0480
更新日期:2010-06-01 00:00:00
abstract::After urinary diversion, access to the distal ureter for either resection or repair, especially in patients with history of infection, extravasation, radiation, or other abdominal surgery, can be hazardous. We report two cases where the endoscopic placement of a coaxial balloon dilating catheter prior to open explorat...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1996.10.57
更新日期:1996-02-01 00:00:00
abstract:PURPOSE:To investigate a modified laparoscopic retroperitoneal lymph node dissection technique using an extraperitoneal approach and to evaluate its feasibility. PATIENTS AND METHODS:A group of consecutive patients from a single institution underwent extraperitoneal laparoscopic retroperitoneal lymph node dissection (...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2011.0545
更新日期:2012-09-01 00:00:00
abstract:INTRODUCTION:Previous robot-assisted partial nephrectomy (RAPN) studies have identified various predictors of overall and major postoperative complications, but few have evaluated the specific role of these factors in the development of medical and surgical complications. In this study, we present an analysis of the mo...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2016.0217
更新日期:2017-03-01 00:00:00
abstract:PURPOSE:We present our experience in the design and development of a training program in laparoscopic radical prostatectomy (LRP), and the validation of the first steps of the program by objective measurement of the attendants' skills improvement and subjective evaluation of its contents. MATERIALS AND METHODS:Our tra...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2014.0050
更新日期:2014-07-01 00:00:00
abstract::Laparoscopy has become the essential surgical approach to the adrenal gland at many institutions, including ours. At the Cleveland Clinic, laparoscopic adrenalectomy for benign and malignant adrenal neoplasms can be performed by either the transperitoneal or the retroperitoneal approach. Herein, we present our techniq...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/089277901750299302
更新日期:2001-06-01 00:00:00
abstract::Cold-knife retrograde endopyelotomy is a simple, safe, and effective therapeutic option for primary and secondary symptomatic ureteropelvic junction obstruction (UPJO). Our long-term success rate with negligible complications demonstrates its durability and safety. Retrograde endopyelotomy should be considered a viabl...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2007.9828
更新日期:2008-04-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Transurethral resection of the bladder (TURB), the first step in treatment of patients with urothelial bladder cancers, is limited by technicalities, surgeon skill, and random chance. When high-risk superficial diseases are discovered, a repeated TURB is indicated. We reviewed current literature ...
journal_title:Journal of endourology
pub_type: 杂志文章,meta分析,评审
doi:10.1089/end.2011.0081
更新日期:2011-11-01 00:00:00
abstract:PURPOSE:To investigate a new method and its effect on the procedure of dilating the ejaculatory duct and flushing the seminal vesicle with an F9 seminal vesicle scope in patients with chronic and recurrent seminal vesiculitis. PATIENTS AND METHODS:Twenty-six patients with a diagnosis based to signs, laboratory detecti...
journal_title:Journal of endourology
pub_type: 临床试验,杂志文章
doi:10.1089/end.2010.0456
更新日期:2011-11-01 00:00:00
abstract:INTRODUCTION:Ureteroscopy is one of the therapeutic options in the management of urinary stone disease in children. Previous literature has described ureteroscopy primarily in mid to distal ureteral calculi. We report our experience with flexible ureteroscopy in the management of upper ureteral calculi. PATIENTS AND M...
journal_title:Journal of endourology
pub_type: 临床试验,杂志文章
doi:10.1089/end.2010.0307
更新日期:2011-04-01 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::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::A 42-year-old man undergoing bilateral laparoscopic hernia repair requested vasectomy for family planning purposes. Bilateral vasectomy was done by a laparoscopic approach at the time of extraperitoneal hernia repair, and a separate scrotal incision was avoided. In addition to reporting a case of laparoscopic vasectom...
journal_title:Journal of endourology
pub_type: 杂志文章,评审
doi:10.1089/089277902753619618
更新日期:2002-03-01 00:00:00
abstract:PURPOSE:To conduct a study to assess the association between calculus location and size and the incidence of both microhematuria and symptoms of urolithiasis in a urology office environment. PATIENTS AND METHODS:After Institutional Review Board approval, a prospective study was conducted with data from 100 consecutive...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2011.0265
更新日期:2011-12-01 00:00:00
abstract:INTRODUCTION:Partial or complete obstruction of the urinary tract is a common and challenging urological condition that may occur in patients of any age. Serum creatinine is the most commonly used method to evaluate global renal function, although it has low sensitivity for early changes in the glomerular filtration ra...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2016.0215
更新日期:2017-02-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The introduction of radiofrequency ablation (RFA) into other fields of surgery has fueled the interest to study its application in small renal masses (SRM). Some controversies remain, however, regarding its oncologic efficacy. We review technical factors and tissue characteristics that influence ...
journal_title:Journal of endourology
pub_type: 杂志文章,评审
doi:10.1089/end.2009.0677
更新日期:2010-05-01 00:00:00
abstract:PURPOSE:To report the outcomes of patients with ureteroenteric strictures after ileal conduit urinary diversion that were managed with Resonance metallic ureteral stents. PATIENTS AND METHODS:Ten ureteroenteric strictures in patients with ileal conduits that were managed with metallic ureteral stenting were retrospect...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2008.0454
更新日期:2009-07-01 00:00:00
abstract::The preliminary experience with 64 patients who have undergone HoLEP combined with intravesical morcellation is presented. The mean preoperative prostate volume was 75.3 cc. The mean laser time was 46.9 minutes and the morcellator time a further 10.5 minutes. A mean total of 35.5 g of tissue was obtained, and 93% of t...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1998.12.457
更新日期:1998-10-01 00:00:00
abstract:PURPOSE:To assess the safety and efficacy of conversion from pure laparoscopy to hand-assisted laparoscopy to control mild-to-moderate bleeding during renal surgery. PATIENTS AND METHODS:Between August 2006 and August 2008, we performed 94 laparoscopic nephrectomies (44 partial and 50 radical). A total of three radica...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2010.0321
更新日期:2011-01-01 00:00:00
abstract:: Purpose: Kidney stone recurrence rates vary between patients. A patient's risk informs the frequency and intensity of preventative interventions. Clinicians routinely use clinical experience to estimate risk. We sought to compare clinician estimated recurrence risk with th...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2020.0978
更新日期:2020-11-16 00:00:00
abstract:OBJECTIVE:We investigated the surgical efficiency and cutoff criteria to determine whether retrograde intrarenal surgery (RIRS) or supine miniaturized percutaneous nephrolithotomy (MPCNL) is appropriate for managing renal stones with a mean size >10 mm. MATERIALS AND METHODS:Data of a single session RIRS or supine MPC...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2017.0244
更新日期:2017-10-01 00:00:00