Abstract:
BACKGROUND AND PURPOSE:Renal mass protocol CT (RMP-CT) using multiphase abdomen and pelvis CT imaging is the mainstay for diagnosis, characterization, and follow-up for renal masses; however, it is associated with ionizing radiation to the patient. We sought to quantify the effective dose associated with RMP-CT and to determine how patient factors affect radiation exposure. MATERIAL AND METHODS:We retrospectively reviewed the records of 247 patients undergoing management of a small renal mass (cT1a) between 2005 and 2011 at our institution. Body mass index (BMI) was categorized as normal weight, overweight, obese, and morbidly obese (≤25, 25.1-30, 30.1-35 and >35, respectively). Effective dose of RMP-CT was calculated through the dose-length-product multiplied by a factor coefficient (0.015). Effective doses in milliSieverts (mSv) were correlated to patient characteristics. RESULTS:Patients' median age was 61 years, and median BMI was 28.7 kg/m(2); 72% were Caucasian and 56% were male. Median effective dose was 26.1 mSv (interquartile range 20.6-35.3). When stratified by BMI, the median effective doses were 18.9, 25.2, 27.7, and 36.2mSv for normal weight, overweight, obese, and morbidly obese patients, respectively. On multivariable analyses, BMI and male sex were significantly associated with increased radiation dose. CONCLUSIONS:In this series, the median effective dose for RMP-CT was 26.1 mSv. Obesity was independently associated with markedly increased radiation exposure, with morbidly obese patients being exposed to almost twice the amount of radiation compared with normal weight persons. These findings should be considered when devising management strategies in patients with a renal mass and strategies should be developed to reduce medical ionizing radiation exposure.
journal_name
J Endouroljournal_title
Journal of endourologyauthors
Tsivian M,Abern MR,Yoo JJ,Evans P,Qi P,Kim CY,Lipkin ME,Polascik TJ,Ferrandino MNdoi
10.1089/end.2013.0111subject
Has Abstractpub_date
2013-09-01 00:00:00pages
1102-6issue
9eissn
0892-7790issn
1557-900Xjournal_volume
27pub_type
杂志文章abstract::In 2005 we reported in this journal the treatment of cystic nephroma, a rare but presumed benign renal tumor, with percutaneous resection. Initial follow-up confirmed removal of the intra-pelvic portion of the cystic nephroma and persistence of the unresected intra-parenchymal portion. Surveillance with computed tomog...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2007.0441
更新日期:2008-07-01 00:00:00
abstract::The lateral repair is an accepted method for the reconstitution of paravaginal defects. Several open or vaginal approaches have been described, but there is still a deficit of reproducible laparoscopic approaches. Thus, only a few clinics perform the laparoscopic approach although it offers several advantages compared...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2010.0096
更新日期:2010-10-01 00:00:00
abstract:PURPOSE:To compare the effectiveness and efficacy of laparoscopic transperitoneal adrenalectomy (LTA) with those of open adrenalectomy (OA) in patients with pheochromocytoma. PATIENTS AND METHODS:Among 24 patients (13 male, 11 female) who underwent surgical removal of pheochromocytoma, LTA and OA were performed in 15 ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/089277904773582859
更新日期:2004-04-01 00:00:00
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 prevent...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2017.0352
更新日期:2017-12-01 00:00:00
abstract::Patients with large median prostate lobes undergoing robot-assisted radical prostatectomy are at potential risk of ureteric orifice injury, during posterior bladder neck transection and vesicourethral anastomosis reconstruction. We describe our technique of in situ robot-assisted ureteral stenting with double-pigtail ...
journal_title:Journal of endourology
pub_type: 临床试验,杂志文章
doi:10.1089/end.2009.0133
更新日期:2009-12-01 00:00:00
abstract:PURPOSE:To develop a preoperative prediction model using a computer-assisted volumetric assessment of potential spared parenchyma to estimate the probability of chronic kidney disease (CKD, estimated glomerular filtration rate [eGFR] <60 mL/min/1.73 m(2)) 6 months from extirpative renal surgery (nephron-sparing surgery...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2015.0411
更新日期:2016-01-01 00:00:00
abstract:: Purpose: We assessed the ability of enhanced cystoscopy with CHROMA image enhancement (Karl Storz SE & Co. KG, Tuttlingen, Germany) to improve cancer detection during transurethral resection of bladder tumors (TURBT) in patients with known or suspected nonmuscle invasive b...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2020.0821
更新日期:2020-12-04 00:00:00
abstract::We report our experience in the laparoscopic transperitoneal repair of retrocaval ureter in two cases, highlighting a new technique of stenting. ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/08927790360587397
更新日期:2003-03-01 00:00:00
abstract:INTRODUCTION/OBJECTIVE:We sought to examine the contemporary relationship between case volume and outcome for percutaneous nephrolithotomy (PCNL) using a publically available administrative database. METHODS:A weighted sample of 7785 patients was obtained from the 2010 Healthcare Cost and Utilization Project (HCUP) Na...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2013.0172
更新日期:2013-09-01 00:00:00
abstract::Endopyelotomy is currently advocated for management of the obstructed ureteropelvic junction (UPJ). Healing of the stented UPJ occurs by secondary intention. Regardless of the method employed, success rates approach 85%. In order to increase the rate of success, we have devised a method of performing endopyelotomy in ...
journal_title:Journal of endourology
pub_type: 临床试验,杂志文章
doi:10.1089/end.1996.10.147
更新日期:1996-04-01 00:00:00
abstract:INTRODUCTION/PURPOSE:Medical simulation offers the advantage of improving resident skill and comfort without impacting patient care. Five years ago, we identified trends in the use of robotic and laparoscopic simulation in 2008 and 2009 at American urology residency training programs. We seek to identify the changes in...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2015.0561
更新日期:2016-03-01 00:00:00
abstract:OBJECTIVE:To evaluate the role of the fascial dilators modified with a scale marker in reducing fluoroscopy time during percutaneous nephrolithotomy (PCNL). METHOD:In a randomized clinical trial, eligible 100 consecutive patients anticipated to undergo single-tract PCNL were randomly assigned into two groups by the cl...
journal_title:Journal of endourology
pub_type: 杂志文章,随机对照试验
doi:10.1089/end.2012.0671
更新日期:2013-11-01 00:00:00
abstract:PURPOSE:To review the management approach to and results of severely encrusted retained ureteral stents and analyze predictive risk factors. PATIENTS AND METHODS:Medical records from January 1996 to March 2006 were reviewed for Double-J stent complications and their final outcome. A total of 876 stents were inserted i...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2006.0250
更新日期:2007-06-01 00:00:00
abstract:PURPOSE:The purpose of this study was to assess the extent of the increased intracranial pressure (ICP) resulting from CO2 pneumoperitoneum and steep Trendelenburg positioning using ultrasonographic measurement of optic nerve sheath diameter (ONSD) in patients undergoing robot-assisted laparoscopic radical prostatectom...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2014.0019
更新日期:2014-07-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Performing warm-up exercises before athletic competition or stage performance is very common; however, most surgeons do not "warm up" before performing complex surgery. We analyzed the intraoperative effects of warming up before surgery in an experienced laparoscopic surgeon. METHODS:A retrospec...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2011.0134
更新日期:2012-07-01 00:00:00
abstract:BACKGROUND:Stents are used abundantly to maintain ureteral patency. The majority are plastic tubes that adjust easily to upper urinary-tract motion. Recently, a coiled-wire lumenless stent was introduced (ZebraStent, Neo Medical, Munich, Germany) to facilitate expulsion of stone fragments after lithotripsy. Its metal c...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2006.9862
更新日期:2008-02-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Creation of an optimally apposed, tension-free, well-supported vesicourethral anastomosis remains the cornerstone for anastomotic healing after radical prostatectomy. We report the effect of three techniques of bladder neck reconstruction during robot-assisted radical prostatectomy on anastomotic...
journal_title:Journal of endourology
pub_type: 临床试验,杂志文章
doi:10.1089/end.2009.0630
更新日期:2010-12-01 00:00:00
abstract:PURPOSE:To assess the efficacy and the safety of a new transurethral endoscopic device using bipolar electrocautery, the Gyrus system. This system permits rapid prostate tissue removal by endoscopic vaporization with little bleeding and no pad return using saline irrigation and therefore eliminating TURP syndrome. PAT...
journal_title:Journal of endourology
pub_type: 临床试验,杂志文章
doi:10.1089/089277901750161917
更新日期:2001-04-01 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::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:PURPOSE:To evaluate contemporary management approaches to medium-sized (10-20 mm) renal stones. PATIENTS AND METHODS:A total of 935 patients treated for medium-sized renal stones (10-20 mm) between July 2012 and March 2014 were included in the study program. Contemporary minimally invasive approaches applied in the ma...
journal_title:Journal of endourology
pub_type: 杂志文章,多中心研究
doi:10.1089/end.2014.0698
更新日期:2015-07-01 00:00:00
abstract::Since the advantages of using ureteral stents in conjunction with extracorporeal shock wave lithotripsy were first recognized, the growing demand for outpatient stone treatment has made stent use much more frequent. However, prophylactic stent placement must be judicious to maximize success and minimize associated mor...
journal_title:Journal of endourology
pub_type: 杂志文章,评审
doi:10.1089/end.1993.7.155
更新日期:1993-04-01 00:00:00
abstract:: Introduction: This exploratory retrospective analysis examined any potential prognostic role of preoperative neutrophil lymphocyte ratio (NLR) for progression-free survival (PFS) and time to endoscopically verified upper tract or bladder recurrence-free survival (RFS) in u...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2020.0283
更新日期:2020-09-01 00:00:00
abstract::The identification of calcium-binding proteins in urine and kidney stones has led to a closer look at the role of matrix proteins in urolithiasis. We analyzed five struvite stones for protein content and identified two bands (8 and 14 KDa) that were confirmed by gel electrophoresis and amino acid sequencing to be calg...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1994.8.95
更新日期:1994-04-01 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:INTRODUCTION:The improvements in flexible ureteroscopes provide efficient access to the upper urinary tract and advancements in laser technology strengthens the endourologists' armamentarium. The endourologists must be aware of the advantages and the potential complications of these powerful technological equipments. O...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2015.0747
更新日期:2016-05-01 00:00:00
abstract:: Introduction: To compare short- and midterm outcomes of the first 55 patients undergoing robot-assisted kidney transplant (RAKT) with patients undergoing open kidney transplant (OKT) during the same period in a tertiary care hospital. Materials and...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2020.0213
更新日期:2020-09-01 00:00:00
abstract:: Background: Holmium laser enucleation of the prostate (HoLEP) is a highly effective procedure for benign prostatic hyperplasia that is size independent and has been recommended for patients necessitating antiplatelet (AP) and anticoagulant (AC) medications. Although HoLEP ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2020.0886
更新日期:2021-01-06 00:00:00
abstract:: Purpose: To report on the safety, technical results, and oncologic outcomes of computed tomography guided percutaneous microwave ablation of stage cT1b renal cell carcinoma. Materials and Methods: This single-center retrospecti...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2020.0382
更新日期:2020-10-01 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