Abstract:
:Endoscopic fetal surgery may reduce preterm labor associated with open hysterotomy but is partially limited by current visualization technology. We investigated a three-dimensional (3D) imaging system coupled to a head-mounted display (3D-HMD) and also employed a computer-controlled zoom endoscope for noninsufflated amnioscopy. Pregnant sheep were prepared in aseptic fashion for general anesthesia. Uterine access was obtained following maternal laparoscopy. A 10-mm zoom endoscope (Vista Medical Technologies, Carlsbad, CA) was used to examine the fetus and uterine contents. Fetal limbs were exteriorized for microsurgery. A new system (Vista Medical Technologies) was attached to an operative microscope, permitting projection of a 3D image via an HMD. The fetus and umbilical cord were inspected using the zoom endoscope, which changes the depth of focus under computer control. Basic manipulations of the fetus and cord were easily completed. Real-time 3D fetal imaging was accomplished. The added depth perception enabled detailed fetal and placental examination, fostering manipulation of the fetus and cord. The HMD was adjusted to fit several surgeons, permitting a natural operative posture. This unit has the capacity to display any video, CT, MR, or ultrasound image as a picture-in-picture. The success of minimally invasive fetal surgery is in part dependent on the development of video technologies capable of providing both magnification and optimal resolution. The zoom endoscope affords excellent visibility of multiple surgical targets without instrument repositioning. A 3D HMD system such as this provides greater anatomic detail and an appreciation of fetal movements that may make intrauterine procedures more feasible.
journal_name
J Endouroljournal_title
Journal of endourologyauthors
Calvano CJ,Moran ME,Tackett LD,Reddy PP,Boyle KE,Pankratov MMdoi
10.1089/end.1998.12.407subject
Has Abstractpub_date
1998-10-01 00:00:00pages
407-10issue
5eissn
0892-7790issn
1557-900Xjournal_volume
12pub_type
杂志文章abstract:INTRODUCTION AND OBJECTIVES:There is a need to improve prescreening determination of prostate cancer to better select patients who need biopsy. Such a strategy properly implemented, will decrease the number of negative biopsies for prostate cancer and in turn better balance the risks and morbidity for patients recommen...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2013.0383
更新日期:2014-03-01 00:00:00
abstract:PURPOSE:To assess the effectiveness of periurethral microballoon implantation for management of female urinary incontinence. PATIENTS AND METHODS:A total of 45 women with urinary incontinence (age range 47-88 years) were treated between May 2000 and June 2001. Microballoons were placed in the proximal periurethral tis...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2004.18.901
更新日期:2004-11-01 00:00:00
abstract::Urinary incontinence may be the result of various forms of detrusor overactivity. Several surgical therapies have been devised, but with the exception of procedures to relieve urethral obstruction, none abolishes the overactivity or restores normal micturition. In general, ablative neurosurgery is considered only in p...
journal_title:Journal of endourology
pub_type: 杂志文章,评审
doi:10.1089/end.1996.10.213
更新日期:1996-06-01 00:00:00
abstract:: Purpose: The conventional flexible ureteroscope has limited access into the lower calix and often causes biomechanical stress to surgeons. Recently, a novel flexible ureteroscope with an omnidirectional bending tip with a joystick-type control unit (URF-Y0016; Olympus, Jap...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2019.0895
更新日期:2020-06-01 00:00:00
abstract:PURPOSE:To evaluate the suitability of a bioabsorbable stent as a partial internal catheter after percutaneous endopyelotomy in ureteropelvic junction (UPJ) obstruction therapy. PATIENT AND METHODS:The material for the helical spiral stents was a copolymer of polylactide and glycolide (PLGA; L:G ratio 80/20). The self...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/089277902760102785
更新日期:2002-06-01 00:00:00
abstract:INTRODUCTION:To assess the clinical features, outcomes, complications, and cost-effectiveness of shockwave lithotripsy (SWL), flexible ureterorenoscopy (FURS), and percutaneous nephrolithotomy (PCNL) in the treatment of lower pole (LP) stones (10-20 mm) in a large tertiary referral center. PATIENTS AND METHODS:Consecu...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2016.0825
更新日期:2017-05-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Chronic unilateral hematuria is characterized by intermittent or continuous gross hematuria that cannot be diagnosed using standard radiology and hematology methods. In the past, it was managed with partial or total nephrectomy. In the age of minimally invasive procedures, however, endoscopy has ...
journal_title:Journal of endourology
pub_type: 临床试验,杂志文章
doi:10.1089/end.2009.0064
更新日期:2009-08-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Clinically significant post-transplantation lymphoceles are not uncommon. Surgical marsupialization with internal peritoneal drainage is the treatment of choice. We describe the successful laparoscopic formation of a peritoneal window for post-transplantation lymphocele drainage as an effective a...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2006.20.904
更新日期:2006-11-01 00:00:00
abstract:INTRODUCTION AND OBJECTIVES:We evaluated patients who underwent treatment for prostate cancer and then subsequent robotic radical cystectomy (RARC). Our objective was to understand clinical, pathologic, and survival outcomes in these patients. MATERIALS AND METHODS:A total of 333 male patients underwent RARC with stan...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2020.0627
更新日期:2020-12-02 00:00:00
abstract:BACKGROUND AND PURPOSE:The management of urolithiasis in patients with a solitary kidney is challenging for endourologists. This study was aimed at evaluating the safety and efficacy of retrograde intrarenal surgery (RIRS) in the treatment of such patients with renal stones. PATIENTS AND METHODS:Between January 2010 a...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2014.0295
更新日期:2014-11-01 00:00:00
abstract::We describe what appears to be the first case of a port-site hernia at the site of insertion of a 10-mm non-bladed trocar, which was discovered 4 days after laparoscopic live-donor nephrectomy. We now close all 10-mm port sites in adults and all 5-mm port sites in children; this can be done easily using the Carter-Tho...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/089277903769013649
更新日期:2003-09-01 00:00:00
abstract:: Introduction: How to quantify the impact of metabolic syndrome (MetS) on percutaneous nephrolithotomy (PCNL) is unclear. We aimed to evaluate the quantified effect of the number of MetS components on the outcome of PCNL. Materials and Methods: ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2019.0404
更新日期:2019-11-01 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:BACKGROUND AND PURPOSE:Involvement of the bladder is seen in only 1% to 2% of patients with endometriosis. The diagnosis of vesical endometriosis is difficult to formulate, and it should be confirmed by cystoscopy with biopsy. However, this examination is often insufficient because of the submucosal-transmural location...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/089277902761403014
更新日期:2002-11-01 00:00:00
abstract:OBJECTIVE:Accurate tumor staging in renal cancer is critical for prognostic projections, follow-up schedules, clinical trials and potential systemic therapies. We studied patients undergoing laparoscopic radical nephrectomy (LRN) to determine the extent of upstaging on histopathology evaluation and correlated the clini...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2008.0399
更新日期:2008-10-01 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::A new technique of endosurgical pelvic lymph node dissection was performed for the staging of 10 prostate and 8 bladder cancers. The technique, involving an exclusive extraperitoneal space development with CO2 insufflation, is described in detail. Using the standard endosurgical (laparoscopic) equipment, we performed ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1993.7.229
更新日期:1993-06-01 00:00:00
abstract::The Clinical Research Office of the Endourological Society (CROES) conducts large-scale, international, multicenter clinical trials in the field of endourology. One of the major challenges that these trials pose is to ensure that data collected remotely and online within a very short time frame are valid and reliable....
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2011.0402
更新日期:2011-11-01 00:00:00
abstract::Using high-speed photography and acoustic emission measurements, we studied the dynamics of a transient cavitation bubble near a stone surface and the concomitant shockwaves generated during electrohydraulic lithotripsy (EHL). At each spark discharge, a vapor plasma and subsequently a cavitation bubble oscillating aro...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1997.11.55
更新日期:1997-02-01 00:00:00
abstract::Complications from laparoscopically placed staples are rare. We present two patients with ureteral obstruction secondary to eroded staples. Each patient had a remote history of laparoscopic abdominal or pelvic surgery and was treated with endoscopic removal and short-term ureteral stenting. The clinical presentation a...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2006.20.659
更新日期:2006-09-01 00:00:00
abstract:OBJECTIVES:We evaluated the feasibility and effectiveness of percutaneous urinary diversion in patients with obstructive uropathy. PATIENTS AND METHODS:A total of 206 percutaneous nephrostomies (PCNs) (right-sided in 54, left in 56, and bilateral in 48) were performed in 102 male and 57 female patients 18 to 94 years ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2000.14.401
更新日期:2000-06-01 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:BACKGROUND AND PURPOSE:Laparoscopic radical cystectomy is confined to centers where advanced laparoscopy is performed, and its role is not yet well clear. Our aim was to evaluate, through a prospective comparative study, the advantages of the laparoscopic compared with an open approach. PATIENTS AND METHODS:From Novem...
journal_title:Journal of endourology
pub_type: 临床试验,杂志文章
doi:10.1089/end.2006.0224
更新日期:2007-03-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Single-system ectopic ureter draining a dysplastic kidney is a rare urologic abnormality. In this study, we evaluated our own experience using laparoscopy for the simultaneous identification and removal of such ureterorenal units. PATIENTS AND METHODS:Between February 1999 and August 2001, four ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/089277902760261392
更新日期:2002-08-01 00:00:00
abstract:: Introduction: Nephrolithiasis is a known risk factor for chronic kidney disease (CKD); however, it is unknown how CKD affects urinary parameters related to stone risk. The purpose of this study was to assess the relationship of diminishing glomerular filtration rate (GFR) ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2020.0403
更新日期:2020-12-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Development of flexible renoureteroscopy had a significant impact on the diagnosis and management of upper urinary tract pathology. The aim of our study was to compare the performances of a fiberoptic flexible ureteroscope (FFU) with those of a digital flexible ureteroscope (DFU). MATERIAL AND M...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2009.0390
更新日期:2010-01-01 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 update our short-term potency outcomes from a cautery-free (CFT) versus bipolar cautery technique to preserve the neurovascular bundles (NVB) during robotic laparoscopic radical prostatectomy (RLP). PATIENTS AND METHODS:Previously, we reported on 3-month potency outcomes in 23 men, which we now extend to 51...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2006.20.586
更新日期:2006-08-01 00:00:00
abstract:PURPOSE:This study was to evaluate the effect of intraoperative continuous infusion of dexmedetomidine on intraocular pressure (IOP) in patients undergoing robot-assisted laparoscopic radical prostatectomy (RALRP) in the steep Trendelenburg (ST). MATERIALS AND METHODS:Sixty-eight patients were randomly divided into tw...
journal_title:Journal of endourology
pub_type: 杂志文章,随机对照试验
doi:10.1089/end.2014.0381
更新日期:2015-03-01 00:00:00
abstract::Cryoablation of renal masses is an evolving in situ ablative technique for the management of localized renal masses and can be performed in a laparoscopic or percutaneous manner. Its usefulness is increasing and correlates with the increasing frequency of incidentally diagnosed renal lesions. At present, this techniqu...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2008.0102
更新日期:2008-06-01 00:00:00