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1.
J Pediatr Urol ; 9(1): 51-5, 2013 Feb.
Article in English | MEDLINE | ID: mdl-22177779

ABSTRACT

OBJECTIVE: The objective of this study was to evaluate risk factors for new contralateral vesicoureteral reflux (NCVUR) and to investigate whether assessment of the non-refluxing contralateral ureter (NRCU) by hydrodistention and selective treatment can reduce the incidence of NCVUR. MATERIALS AND METHODS: From 2001 to 2007, 339 of 841 patients (40%) were treated for unilateral VUR by endoscopic injection. While in the first 267 patients the NRCU was only assessed by hydrodistention but not injected (observation group), NRCUs of the subsequent 72 patients were prophylactically treated if deemed at high risk for NCVUR (H2 or H3) (prophylaxis group). RESULTS: NCVUR occurred in 30 of 267 patients (11.2%) whose NRCUs were observed. No statistically significant risk factors for NCVUR were found in this group. In the subsequent 72 patients, whose H2 and H3 ureters were selectively injected (N = 56), no cases of NCVUR were seen. CONCLUSIONS: Prophylactic endoscopic treatment of NRCU H2 and H3 ureters successfully prevented the occurrence of NCVUR.


Subject(s)
Dextrans/therapeutic use , Hyaluronic Acid/therapeutic use , Ureter , Vesico-Ureteral Reflux/drug therapy , Vesico-Ureteral Reflux/prevention & control , Adolescent , Child , Child, Preschool , Endoscopy , Female , Follow-Up Studies , Humans , Incidence , Infant , Injections, Intralesional/methods , Male , Risk Factors , Secondary Prevention , Treatment Outcome , Vesico-Ureteral Reflux/epidemiology
2.
J Pediatr Urol ; 8(2): 166-73, 2012 Apr.
Article in English | MEDLINE | ID: mdl-21507726

ABSTRACT

OBJECTIVE: Urethral-enteric fistulae with hypoplastic/atretic distal urethra in boys with anorectal malformations are amenable to management via sequential dilation of the distal urethra (P.A.D.U.A.) and subsequent repair of the fistula, but failure of this technique occasionally requires complex reconstruction. We present a novel surgical approach, along with long-term results, that incorporates rotation of the amputated fistula tract (RAFT) in boys with H-type urethral-enteric fistulae. METHODS: The charts of four patients undergoing the RAFT procedure were reviewed. All had previously failed P.A.D.U.A. Surgical principles were similar in all cases: the fistula tract was amputated as close to the bowel as possible. A tubularized or on-layed urethra was then fashioned from preputial skin and anastomosed to the distal end of the urethral fistula. The distal end of the neourethra was then brought to the tip of the penis, or anastomosed to the proximal end of the patent distal urethra. RESULTS: Mean age was 12.3 months, and there was a mean follow up of 10.2 years. All four patients had a rectourethral fistula as a component of VACTERL, with a urethral deficit of 7-11 cm. All had a functionally intact urethra on reconstruction, with normal continence and bladder neck closure. Two patients needed further bladder augmentation with a Mitrofanoff channel for poor bladder compliance. Both boys who were post-pubertal in this series report normal sexual function with antegrade ejaculation. CONCLUSIONS: The RAFT technique represents a viable reconstructive option for congenital H-fistulae with distal urethral stenosis, with excellent long-term results. It provides boys with normal urethral function, along with intact urinary continence and antegrade ejaculation. This technique may be of particular utility in patients after failed P.A.D.U.A., or in whom a staged buccal onlay graft is not feasible.


Subject(s)
Plastic Surgery Procedures/methods , Rectal Fistula/surgery , Urethra , Urethral Stricture/surgery , Urinary Fistula/surgery , Urologic Surgical Procedures, Male/methods , Follow-Up Studies , Humans , Infant , Male , Rectal Fistula/complications , Rectal Fistula/congenital , Retrospective Studies , Time Factors , Treatment Outcome , Urethral Stricture/etiology , Urinary Fistula/complications , Urinary Fistula/congenital
3.
J Pediatr Urol ; 8(3): 297-303, 2012 Jun.
Article in English | MEDLINE | ID: mdl-21543259

ABSTRACT

OBJECTIVE: Criteria for success following endoscopic vesicoureteral reflux (VUR) surgery vary greatly. We sought to define outcomes based on radiographic and long-term clinical follow up. METHODS: We reviewed the charts and interviewed parents of children who underwent endoscopic treatment for primary VUR (grades I-IV). All patients had a postoperative voiding cystourethrogram (VCUG) at mean of 3 months (1-21 months) and all cases of postoperative febrile urinary tract infection (FUTI) prompted repeat VCUG. Radiographic success was defined as no VUR on postoperative VCUG and clinical success as no FUTIs during follow up of 12-36 months. To demonstrate how criteria for success can affect outcomes, we calculated the success rates using different definitions. RESULTS: In 2004-2008, 336 patients (296 female and 40 male, mean age 4 years) were treated with dextranomer/hyaluronic acid via the Double-HIT method. Initial radiographic success was 90% (302/336). Of these, 19 (6%) developed FUTIs, 12 (4%) of whom had recurrent VUR, and 5 (2%) went on to open surgery. Of the radiographic failures, 18% were observed with no further treatment. Success defined clinically was 94% (281/300), and as 'radiographic cure and no clinical evidence of FUTIs' it was 82% (275/336). CONCLUSIONS: It is important to agree on a universal definition of success for VUR interventions to compare across studies and across therapies. Clinical success is more meaningful to the patient, and initial radiographic success could be followed by UTI necessitating further intervention. We question the need for routine postoperative VCUG.


Subject(s)
Dextrans/administration & dosage , Hyaluronic Acid/administration & dosage , Prostheses and Implants , Ureteroscopy/methods , Urodynamics , Urography/methods , Vesico-Ureteral Reflux/surgery , Child, Preschool , Female , Follow-Up Studies , Humans , Injections , Male , Retrospective Studies , Time Factors , Treatment Outcome , Ureter , Vesico-Ureteral Reflux/diagnostic imaging , Vesico-Ureteral Reflux/physiopathology , Viscosupplements/administration & dosage
4.
J Pediatr Urol ; 8(4): 359-65, 2012 Aug.
Article in English | MEDLINE | ID: mdl-21820358

ABSTRACT

PURPOSE: Follow-up of patients undergoing dextranomer/hyaluronic acid injection for vesico-ureteral reflux (VUR) is controversial. The purpose of our study was to test the hypothesis that patients undergoing the double hydrodistention-implantation technique (Double HIT) have a higher clinical and radiographic success rate. MATERIALS AND METHODS: Patients undergoing Double HIT endoscopic injection for VUR were prospectively identified. Patients underwent an ultrasound at 6 weeks to assess the implants, and, if visible, prophylactic antibiotics were discontinued and patients were scheduled for a 1-year voiding cystourethrogram (VCUG). Radiographic success was defined as a negative VCUG and clinical success as no febrile urinary tract infections at 1 year. RESULTS: A total of 54 patients underwent endoscopic injection for VUR. Twenty-five (51%) were compliant with the 1 year follow-up; 18 non-compliant patients were contacted and their clinical status assessed. Thirty patients eventually completed the 1-year VCUG at a mean of 12.2 months (range 10-20). Among the 60% of patients with 1-year radiographic follow-up, 2 had persistent VUR for a radiologic success rate of 93%. All radiographic failures were infection-free. Of the 80% (43/54) of patients with available clinical data, 3 (7%) had afebrile UTI for a clinical success rate of 93%. CONCLUSIONS: The Double HIT leads to a 93% clinical and 93% radiographic intermediate/long-term success rate. With this technique, better outcomes were achieved with fewer recurrences than previously reported. These favorable results challenge the need for postoperative VCUG in asymptomatic patients after the Double HIT.


Subject(s)
Dextrans/pharmacology , Hyaluronic Acid/pharmacology , Ureteroscopy/methods , Vesico-Ureteral Reflux/therapy , Adolescent , Child , Child, Preschool , Cohort Studies , Female , Follow-Up Studies , Humans , Infant , Injections, Intralesional , Male , Prospective Studies , Prostheses and Implants , Risk Assessment , Secondary Prevention , Time Factors , Tomography, X-Ray Computed/methods , Treatment Outcome , Ultrasonography, Doppler/methods , Vesico-Ureteral Reflux/diagnosis , Vesico-Ureteral Reflux/diagnostic imaging
5.
J Pediatr Urol ; 7(6): 644-9, 2011 Dec.
Article in English | MEDLINE | ID: mdl-21531176

ABSTRACT

OBJECTIVE: Previous studies of endoscopic management of vesico-ureteral reflux (VUR) have had non-compliance rates around 50%. We examined success rates of patients non-compliant with a delayed follow up protocol after endoscopic injection for VUR. MATERIALS AND METHODS: Patients undergoing Double HIT, dextranomer/hyaluronic acid copolymer endoscopic injection for VUR were enrolled in a 1-year, delayed voiding cysto-urethrogram (VCUG) study. All patients non-compliant with the VCUG were contacted and information on their clinical status was collected. Non-compliant patients were re-scheduled for a VCUG. RESULTS: 49/54 (91%) patients underwent endoscopic injection for VUR and completed the 6-week ultrasound. At 1-year 49% (24/49) were non-compliant with a VCUG; 75% (18/24) were contacted and provided clinical information. All but one patient agreed to the VCUG. Patients compliant with the 1-year VCUG showed 96% (24/25) clinical and 92% (23/25) radiologic success rates. Non-compliant patients had an 89% (16/18) clinical success rate; 5 (21%) non-compliant patients underwent VCUGs with a 100% success rate. CONCLUSIONS: Long-term compliance remains an issue for patients treated endoscopically for VUR, but compliance does not predict clinical status as both groups have favorable clinical outcomes. The repeat VCUG is a barrier to long-term follow up as only 21% of patients underwent the study.


Subject(s)
Dextrans/administration & dosage , Endoscopy , Hyaluronic Acid/administration & dosage , Patient Compliance , Prostheses and Implants , Vesico-Ureteral Reflux/therapy , Adolescent , Child , Child, Preschool , Female , Humans , Infant , Injections , Male , Radiography , Urethra/diagnostic imaging , Urinary Bladder/diagnostic imaging , Vesico-Ureteral Reflux/diagnostic imaging
6.
J Urol ; 184(4 Suppl): 1644-50, 2010 Oct.
Article in English | MEDLINE | ID: mdl-20728118

ABSTRACT

PURPOSE: Fecal impaction and urinary incontinence and are among the most important problems in patients with spina bifida. We report our preliminary results with a minimally invasive approach to these 2 problems, that is same setting laparoscopic antegrade continence enema and antegrade bladder neck injection. MATERIALS AND METHODS: We reviewed the charts of all patients who underwent same setting laparoscopic antegrade continence enema and antegrade bladder neck injection between January 1, 2006 and August 1, 2008. Demographic data, surgical indications, operative details and results were recorded. Surgical steps were uniform in all cases. Diagnostic laparoscopy was performed. Two additional 5 mm trocars were placed. The appendix was mobilized to reach skin in the right lower quadrant. The antegrade continence enema channel was matured. A small percutaneous cystotomy was then created via the suprapubic port site. The cystoscope was passed suprapubically and dextranomer/hyaluronic acid was injected in the bladder neck. A suprapubic tube was placed. RESULTS: We performed a total of 10 same setting laparoscopic antegrade continence enemas with antegrade bladder neck injection in 4 males and 6 females with a mean age of 9.4 years (range 6 to 13). All patients had a smooth walled bladder on cystogram, and good capacity, good compliance and low leak point pressure on urodynamics. There were no intraoperative complications and all patients were discharged home within 24 hours. At an average 18-month followup (range 12 to 27) all 10 patients were continent of stool and reported marked improvement in daily care. No patient experienced stool or gas leakage via antegrade bladder neck injection. Seven of 10 patients (70%) were continent of urine and no longer wore diapers. CONCLUSIONS: Same setting laparoscopic antegrade continence enema with antegrade bladder neck injection is a safe, efficacious, reasonably simple minimally invasive approach to severe constipation and urinary incontinence in patients with spina bifida.


Subject(s)
Constipation/therapy , Cystotomy , Dextrans/administration & dosage , Enema/methods , Fecal Impaction/therapy , Hyaluronic Acid/administration & dosage , Laparoscopy , Spinal Dysraphism/complications , Urinary Incontinence/therapy , Adolescent , Child , Constipation/etiology , Feasibility Studies , Fecal Impaction/etiology , Female , Humans , Male , Retrospective Studies , Urinary Bladder , Urinary Incontinence/etiology
7.
J Urol ; 184(4 Suppl): 1758-62, 2010 Oct.
Article in English | MEDLINE | ID: mdl-20728122

ABSTRACT

PURPOSE: We previously reported our success with sutureless circumcision using 2-octyl cyanoacrylate in 267 patients. We have since modified our technique by making incisions with electrocautery. We report our results with this novel technique. We also performed a cost analysis. MATERIALS AND METHODS: We compiled data on all patients 6 months to 12 years old who underwent primary circumcision and circumcision revision in a 39-month period, as done by 3 surgeons. Study exclusion criteria were complexity beyond phimosis and Gomco clamp use. The technique included 1) a circumferential inner incision using electrocautery on cutting current, 2) a circumferential outer incision using electrocautery, 3) foreskin removal, 4) hemostasis with electrocautery, 5) skin edge approximation with 2-octyl cyanoacrylate or 6-zero suture and 6) antibiotic ointment application. We also determined the cost of all procedures based on anesthesia and operating room facility fees, and material costs. RESULTS: Between July 1, 2006 and October 1, 2009 we performed 493 primary circumcisions and 248 revisions using 2-octyl cyanoacrylate, and 152 primary circumcisions and 115 revisions using 6-zero sutures. Mean operative time for primary circumcision and revision using 2-octyl cyanoacrylate was 8 minutes (range 6 to 18), and for sutured primary circumcision and revision it was 27 minutes (range 18 to 48). At a mean 18-month followup (range 1 to 39) 3 patients treated with 2-octyl cyanoacrylate and 2 treated with sutures were rehospitalized for bleeding. When done with electrocautery, the cost of the 2-octyl cyanoacrylate technique was $743.55 less than the sutured technique as long as the 2-octyl cyanoacrylate procedures required less than 15 minutes and the sutured procedures required more than 15 minutes. CONCLUSIONS: Combined electrocautery and 2-octyl cyanoacrylate for circumcision is a safe, efficient, financially beneficial, cosmetically appealing alternative to traditional circumcision done with scalpel and sutures.


Subject(s)
Circumcision, Male/economics , Circumcision, Male/methods , Cyanoacrylates , Electrocoagulation , Tissue Adhesives , Child , Child, Preschool , Circumcision, Male/standards , Costs and Cost Analysis , Humans , Infant , Male , Retrospective Studies , Time Factors
8.
J Urol ; 184(3): 1152-7, 2010 Sep.
Article in English | MEDLINE | ID: mdl-20650477

ABSTRACT

PURPOSE: Gross, intractable hematuria is rare in children. Although the role of epsilon aminocaproic acid in the management of refractory hematuria is well established in the adult population, few data exist about its use in children for this indication. We present our initial experience with epsilon aminocaproic acid for the treatment of intractable hematuria after more conservative measures failed, and propose an algorithm for administration of epsilon aminocaproic acid in children. MATERIALS AND METHODS: We reviewed the charts of all patients treated with epsilon aminocaproic acid for intractable gross hematuria at our institution during a period of 36 months. All patients underwent hematological evaluation and any underlying bleeding dyscrasias were addressed. All patients also underwent renal and bladder ultrasound, retrograde pyelogram and ureteroscopy. Demographic information, medical and surgical histories, and epsilon aminocaproic acid dosing and outcomes were recorded. RESULTS: Three boys and 1 girl 11 to 17 years old were treated with epsilon aminocaproic acid. Three patients had sickle trait (1 with nutcracker phenomenon) and 1 had hemophilia A. Three patients required packed red blood cell transfusions to maintain hematocrit. Three renal angiograms were performed, all of which were nondiagnostic. Duration of hematuria ranged from 1 to 52 weeks before administration of epsilon aminocaproic acid. Endoscopic evaluation demonstrated hematuria localized to 1 ureteral orifice in all 4 patients. All patients received 100 mg/kg epsilon aminocaproic acid orally every 6 hours, which uniformly led to cessation of hematuria. CONCLUSIONS: Epsilon aminocaproic acid is useful for the management of gross refractory hematuria when more conservative measures fail. Because of its potential side effects, it should be used cautiously.


Subject(s)
Aminocaproic Acid/therapeutic use , Antifibrinolytic Agents/therapeutic use , Hematuria/drug therapy , Adolescent , Algorithms , Child , Female , Hematuria/etiology , Hemophilia A/complications , Humans , Male , Retrospective Studies , Sickle Cell Trait/complications
9.
AJR Am J Roentgenol ; 195(1): 234-40, 2010 Jul.
Article in English | MEDLINE | ID: mdl-20566822

ABSTRACT

OBJECTIVE: Implants after endoscopic treatment of vesicoureteral reflux (VUR) in children will be more frequently detected on imaging studies and may lead to misinterpretation and unnecessary intervention. This article reviews the radiologic appearance of implants. CONCLUSION: Radiologic findings of implants depend on the imaging technique, bulking agent, and time after injection. A history of VUR or an antireflux procedure and the absence of hydronephrosis in cases of suspected urolithiasis are important clues to suggest implants.


Subject(s)
Endoscopy/methods , Prostheses and Implants , Vesico-Ureteral Reflux/therapy , Child , Contrast Media , Dextrans/administration & dosage , Dextrans/therapeutic use , Durapatite/administration & dosage , Durapatite/therapeutic use , Humans , Hyaluronic Acid/administration & dosage , Hyaluronic Acid/therapeutic use , Injections , Magnetic Resonance Imaging , Polytetrafluoroethylene/administration & dosage , Polytetrafluoroethylene/therapeutic use , Radiography, Interventional , Tomography, X-Ray Computed , Ultrasonography, Interventional , Vesico-Ureteral Reflux/diagnostic imaging
10.
Urology ; 76(1): 220-4, 2010 Jul.
Article in English | MEDLINE | ID: mdl-20350758

ABSTRACT

OBJECTIVES: To investigate whether voiding dysfunction (VD) in children with attention deficit hyperactivity disorder (ADHD) could be treated successfully using individualized therapy. We also sought to describe the spectrum of voiding symptoms experienced by children with ADHD. ADHD is diagnosed in 3-5% of children. These children have a greater incidence of VD than non-ADHD controls, and it is less amenable to treatment. METHODS: A comprehensive history assessed the nature of the voiding disorder. A physical examination, screening urologic ultrasonography, and urinalysis were routinely performed, with electromyography combined with uroflowmetry performed for certain cases. Treatment was individualized to include behavioral modification, bowel and diet management, biofeedback, pharmacotherapy, and close follow-up. RESULTS: A total of 75 children with ADHD were referred because of VD. The 75 children (39 boys and 36 girls) were 5-16 years old. Of the 75 children, 60 were taking medication for ADHD. All the children had daytime wetting (>1/d, 5-7 d/wk) and urgency. In addition, 88% had frequency and 87% had sleep enuresis. Of the 75 families, 56 proceeded with our prescribed program. Of the 56 children, 47 (83.9%) had complete resolution or improvement of the daytime symptoms. Of the 17 patients (30.4%) with complete resolution, 9 responded to behavior modification and anticholinergics and 8 needed biofeedback. Of the 30 patients with a partial response (53.6%), 9 responded to behavior modification alone, 15 to behavior modification and anticholinergics, and 6 required all 3 modalities. Of the 56 children, 9 failed to respond to any of the 3 modalities. CONCLUSIONS: Diurnal symptoms constituted the most common referred complaint in children with ADHD. VD can be successfully treated if the treatment is individualized. Multimodal treatment, including behavior modification combined with anticholinergic agents and/or biofeedback, appears to be effective in managing VD in most of these challenging cases.


Subject(s)
Attention Deficit Disorder with Hyperactivity/complications , Urination Disorders/diagnosis , Urination Disorders/therapy , Child , Female , Humans , Male , Urination Disorders/etiology
11.
J Urol ; 183(4): 1556-60, 2010 Apr.
Article in English | MEDLINE | ID: mdl-20172568

ABSTRACT

PURPOSE: Vesicoureteral fistula is a well-known potential complication following bladder neck closure for neurogenic incontinence. Various maneuvers, including omental interposition, have been described to prevent this problem. Unfortunately omentum is not always available or feasible for use. We describe the surgical anatomy and use of a rectus abdominis muscle flap as an adjunctive maneuver during bladder neck closure to correct or prevent development of bladder neck fistula. MATERIALS AND METHODS: We performed a retrospective chart review of all patients at our institution undergoing rectus abdominis muscle flap by a single surgeon (EAS). Patient demographics, indications for surgery, intraoperative and postoperative complications, and long-term efficacy were assessed. Cadaveric dissection was also performed to gain a greater understanding of the surgical anatomy relevant to this procedure. RESULTS: In 6 patients with neurogenic bladder dysfunction a rectus abdominis muscle flap was interposed between the bladder neck and urethral stump at bladder neck closure. There were no intraoperative or postoperative complications associated with this procedure. At a mean followup of 45.5 months (range 18 to 120) all 6 patients were continent of urine. There have been no urinary fistulas related to use of the rectus abdominis muscle flap. Cadaveric dissections confirmed the inferior epigastric artery to be the dominant and readily mobile blood supply of the rectus abdominis muscle flap. CONCLUSIONS: The rectus abdominis muscle flap is easily harvested without significant risk of morbidity and offers a well vascularized tissue for coverage of a bladder neck closure when an omental flap is not available.


Subject(s)
Surgical Flaps , Urinary Bladder, Neurogenic/surgery , Urinary Incontinence/surgery , Adolescent , Cadaver , Child , Female , Humans , Male , Rectus Abdominis/transplantation , Retrospective Studies , Urinary Bladder Fistula/prevention & control , Urologic Surgical Procedures/methods
12.
BJU Int ; 105(2): 230-3, 2010 Jan.
Article in English | MEDLINE | ID: mdl-19624534

ABSTRACT

OBJECTIVE: To assess patient compliance with preoperative instructions and to determine causes and factors of noncompliance, as noncompliance might affect surgical outcome and has potential medicolegal implications. PATIENTS AND METHODS: One surgeon counselled 101 consecutive patients before undergoing laparoscopic renal surgery. Deliberate discussions instructed patients to bring their radiograph films on the day of surgery and complete a preoperative bowel preparation. Noncompliance was defined as failure to bring films and/or complete bowel preparation. Patient demographics, socio-economic and clinical variables were analysed, and reasons for failure to comply with instructions were also recorded. RESULTS: Twenty-four of the 101 (24%) patients were not compliant, 13 with films only, seven with bowel preparation only, and four with both sets of instructions. Univariate analysis showed that language and race were factors for noncompliance. Multivariate analysis showed that non-Caucasians had 17 times the risk of noncompliance (P < 0.001); long distance from home to the site of care had five times the risk of noncompliance (P = 0.041), and each day between the initial consultation and the date of surgery had 1.05 times the risk of noncompliance (P < 0.001). The most common reason given by patients for noncompliance was that they were never given the preoperative instructions. CONCLUSIONS: Noncompliance with preoperative surgical instructions is a significant issue and is increased in non-Caucasian patients, those travelling long distances, and those whose surgery date is long after their preoperative consultation. A systems-based approach is needed to address this significant issue.


Subject(s)
Kidney Diseases/surgery , Nephrectomy , Patient Compliance , Preoperative Care , Adolescent , Adult , Aged , Enema , Female , Humans , Laparoscopy , Male , Middle Aged , Risk Factors , Young Adult
14.
J Urol ; 182(4 Suppl): 1688-92, 2009 Oct.
Article in English | MEDLINE | ID: mdl-19692002

ABSTRACT

PURPOSE: We evaluated the usefulness and interobserver concordance of a novel grading system for dynamic ureteral hydrodistention. MATERIALS AND METHODS: Between May 1, 2002 and July 1, 2008 the hydrodistention grade in 697 ureters was prospectively assigned and recorded, including H0-no hydrodistention, H1-ureteral orifice open but tunnel not evident, H2-tunnel seen only and H3-extravesical ureter visualized. Specifically 489 refluxing ureters (vesicoureteral reflux group) were compared to 100 normal control ureters (normal control group). Additionally, the posttreatment hydrodistention grade in 56 ureters in which surgery for reflux failed was compared to that in 52 ureters with successful surgery. Hydrodistention grades assigned to an additional 77 ureters by 3 blinded observers were compared to assess the interobserver concordance of this system. RESULTS: Vesicoureteral reflux and hydrodistention grades correlated significantly (p <0.001). Ureters with a higher reflux grade also showed a higher hydrodistention grade. The normal control group (mean +/- SEM hydrodistention grade 0.62 +/- 0.07) showed a statistically lower hydrodistention grade than the reflux groups (overall mean hydrodistention grade 2.26 +/- 0.01). Mean posttreatment hydrodistention grade in the failed reflux surgery group was statistically higher than that in the mean successful reflux surgery group (2.03 +/- 0.09 vs 1.33 +/- 0.08). By defining the degree of hydrodistention as normal (H0-H1) and abnormal (H2-H3) the concordance between observers was 95% and 96%. CONCLUSIONS: The dynamic hydrodistention classification is a reliable method of evaluating the presence or absence of vesicoureteral reflux as it correlates significantly with radiographic reflux grade. It has high interobserver concordance.


Subject(s)
Urethra/physiopathology , Urodynamics , Vesico-Ureteral Reflux/classification , Vesico-Ureteral Reflux/physiopathology , Child , Child, Preschool , Humans , Infant , Observer Variation , Prospective Studies
15.
J Endourol ; 23(1): 11-6, 2009 Jan.
Article in English | MEDLINE | ID: mdl-19125656

ABSTRACT

PURPOSE: We describe the use of a novel bipolar radiofrequency (RF) system for the destruction of prostate tissue in an ex vivo model. MATERIALS AND METHODS: A bipolar RF delivery system (Trod Medical, France) was linked to a 500 kHz generator. Eight lesions were created in an ex vivo bull prostate model using 7-mm (n = 4) and 10-mm probes (n = 4). Ablation was performed for 150 seconds. Temperature was recorded at the center of the lesion (Tc) and at the periphery (Tp) of the prostate. Tissue damage, both within and without the intended destruction zones, was assessed. The distance from Tc to Tp was recorded. RESULTS: All lesions created with either the 7-mm or 10-mm bipolar RF ablation (RFA) probes demonstrated complete tissue destruction only within the intended zone. Using the 7-mm probe, the mean Tc was 82 degrees C and the mean Tp 34 degrees C. The mean distance from the edge of the lesion to the periphery was 5 mm. Impedance was 62 Ohm, and power was 4 watts during ablation with the 7-mm probe. With the 10-mm probe, the mean Tc and Tp were 70 degrees C and 41 degrees C, respectively. The mean distance from the edge of the lesion to the periphery was 5 mm. Impedance was 78 Ohm, and power was 4.5 watts during ablation with the 10-mm probe. CONCLUSIONS: In an ex vivo model, bipolar RFA is capable of producing lesions with precise margins. Spread of heat is limited, evidenced histologically and by significant temperature drop off. This technology holds promise in the management of benign and malignant urologic diseases.


Subject(s)
Catheter Ablation/instrumentation , Prostate/surgery , Animals , Body Temperature , Cattle , Male , Prostate/cytology
16.
Urology ; 73(3): 526-8, 2009 Mar.
Article in English | MEDLINE | ID: mdl-19038433

ABSTRACT

OBJECTIVES: To present our technique and experience with laparoscopic treatment of ovarian cysts in pediatric patients. Ovarian cysts are rare but important in the consideration of pelvic cystic masses in patients of all ages. The laparoscopic management of these cysts in young girls has been slow to gain popularity despite the well-known advantages of this surgical approach for other abdominal and pelvic pathologic findings. METHODS: We present our technique and experience with 2 pediatric patients who underwent laparoscopic treatment of pelvic cystic masses that were found to be ovarian cysts. RESULTS: One patient presented with a large cyst in adolescence, and the other with a complex cyst as a neonate. The final pathologic examination revealed the presence of a simple, benign ovarian cyst in both cases. Neither patient had any complications. CONCLUSIONS: The laparoscopic approach to the simple benign ovarian cyst is safe and effective in all pediatric age groups.


Subject(s)
Laparoscopy , Ovarian Cysts/surgery , Adolescent , Female , Gynecologic Surgical Procedures/methods , Humans , Infant
17.
J Urol ; 180(4 Suppl): 1733-6, 2008 Oct.
Article in English | MEDLINE | ID: mdl-18721947

ABSTRACT

PURPOSE: In the setting of signs and symptoms of testicular torsion the absence of diastolic flow and/or color flow on Doppler ultrasound has traditionally prompted emergent scrotal exploration. This practice emanates largely from the difficulty on ultrasound of distinguishing salvageable torsed testes from those that are not salvageable. We identified ultrasound findings predictive of testicular viability or the lack thereof. MATERIALS AND METHODS: We retrospectively reviewed the charts of all boys who underwent scrotal exploration for signs and symptoms of torsion during a 4-year period. In those who underwent preoperative Doppler ultrasound of the scrotum ultrasound findings were reviewed, as were the operative dictations. In patients who underwent orchiectomy the pathology reports were also reviewed. In patients in whom the torsed testis appeared viable and who underwent orchiopexy followup data were reviewed when available. Emergency room charts were also reviewed to ascertain, when documented, the duration of pain before presentation to the emergency room and the interval between ultrasound and operating room. RESULTS: During this period 55 boys underwent exploration after preoperative scrotal Doppler ultrasound revealed absent diastolic flow and/or color flow Doppler in the symptomatic testis. Assessment of parenchymal echogenicity revealed heterogeneity in 37 testes (67%), of which none were deemed viable at exploration. Orchiectomy was performed in 34 of 37 cases. Pathological examination revealed necrosis in all 34 cases, a finding consistent with late torsion. The remaining 3 testes underwent orchiopexy by parental directive despite nonviability, as confirmed by biopsy and subsequent atrophy. Thus, heterogeneity on preoperative ultrasound was universally predictive of organ loss (chi-square p <0.001). Of the 18 symptomatic testes (33%) demonstrating homogeneity and isoechogenicity on ultrasound 16 (89%) were deemed viable at exploration. Boys in whom the torsed testicle was nonviable on exploration experienced an average of 27.5 hours of pain preoperatively (range 5 to 72), whereas boys in whom the torsed testis was salvaged experienced an average of 20.5 hours of pain (range 2 to 96) (p = 0.073). The nonviable group underwent surgery an average of 49 minutes after ultrasound, whereas the viable group underwent surgery 52 minutes after ultrasound (p = 0.92). None of the 55 patients experienced any surgical or anesthetic complications and no pathological condition was noted intraoperatively in the contralateral asymptomatic testis. CONCLUSIONS: In the setting of Doppler proven testicular torsion heterogeneous parenchymal echo texture indicates late torsion and testicular nonviability. Therefore, the case may not require emergent scrotal exploration. On the other hand, homogeneous echo texture portends extremely well for testicular viability. Thus, such testes should be explored emergently.


Subject(s)
Orchiectomy , Spermatic Cord Torsion/diagnostic imaging , Testis/diagnostic imaging , Adolescent , Child , Child, Preschool , Emergency Treatment , Humans , Infant , Infant, Newborn , Male , Retrospective Studies , Ultrasonography, Doppler
18.
J Urol ; 180(4 Suppl): 1795-9; discussion 1799, 2008 Oct.
Article in English | MEDLINE | ID: mdl-18721983

ABSTRACT

PURPOSE: The laparoscopic surgical approach to unilateral intra-abdominal testis has replaced the open approach at several large centers. There is considerable literature on experience with unilateral intra-abdominal testes but little on the management of bilateral intra-abdominal testes. We assessed the feasibility and safety of performing single setting bilateral laparoscopic orchiopexy in boys with bilateral intra-abdominal testes. MATERIALS AND METHODS: A single surgeon experience was reviewed. The surgical technique was similar in all cases and on each side, including infra-umbilical access, diagnostic evaluation, peritoneal mobilization lateral to the spermatic vessels and inferior to the vas deferens, gubernacular transection, and a decision for or against a Fowler-Stephens procedure and testis relocation into the scrotum with fixation. Followup consisted of physical examination 14 days, 6 months and 1 year postoperatively, when testicular position and size were assessed. Intraoperative and postoperative complications were noted. RESULTS: Single setting bilateral laparoscopic orchiopexy was attempted in a total of 42 testes in 21 boys with a median age of 9 months (range 7 to 52). It was completed in a total of 36 testes in 18 boys. All procedures were performed on an outpatient basis. Of the 42 testes orchiopexy was performed in 4 with Fowler-Stephens ligation, including at a 1 and 2-stage procedure in 2 each. Although the latter 2 cases account for 2 of the 3 not completed at a single setting, excellent outcomes were achieved in these cases at the second setting, yielding bilateral intrascrotal testes in each. A third boy required a subsequent open procedure for relocation of a testis from an inferior pubic/superior scrotal position to a more dependent portion of the scrotum. Testicular position after laparoscopy was the mid lower scrotum in 38 cases, upper scrotum in 3 and inferior pubic/superior scrotal in 1. Atrophy was noted in 2 of the 42 testes (19 of 21 boys) at 6-month followup, including in 1 boy who underwent a 1-stage Fowler-Stephens procedure and 1 who underwent nonFowler-Stephens orchiopexy. Of the 21 boys 16 required only 1 surgery to achieve viable intrascrotal testes at 1-year followup. Of the 21 boys 19 (91%) ultimately achieved bilateral viable intrascrotal testes. There was no correlation between patient age and the likelihood of success or failure. No patient experienced any complications or hospital admissions. CONCLUSIONS: In boys with bilateral intra-abdominal testes single setting bilateral laparoscopic orchiopexy can be performed safely on an outpatient basis with a high degree of success. Most boys undergo a single surgery with the testes relocated to a satisfactory intrascrotal position without atrophy.


Subject(s)
Cryptorchidism/surgery , Urologic Surgical Procedures, Male/methods , Algorithms , Child , Child, Preschool , Feasibility Studies , Humans , Infant , Male
19.
J Urol ; 180(1): 300-5, 2008 Jul.
Article in English | MEDLINE | ID: mdl-18499170

ABSTRACT

PURPOSE: Biofeedback is known to effect symptomatic and objective cure in children with dysfunctional voiding. While some authors advocate animation assisted biofeedback to achieve success, we previously demonstrated similar success without animation. We recently used animated biofeedback aimed at simplifying muscle isolation and encouraging patient interest. We compared the efficacy of biofeedback with and without animation in treating dysfunctional voiding, and its concomitant urinary symptoms. MATERIALS AND METHODS: We compared our experience with the last 60 cases of biofeedback using electromyography tracing alone (nonanimated) with our first 60 cases using the Urostym Pediflow program (animated). All 120 girls presented with urinary complaints and exhibited dysfunctional voiding on electromyography uroflow. Post-void residual measurements were made by ultrasound. We compared the 2 groups with respect to time to resolution of symptoms and dysfunctional voiding, and improvement in post-void residual volume after treatment. RESULTS: The nonanimated and animated groups were comprised of girls of similar ages (7.3 years vs 6.9 years). There was no significant difference between the 2 groups regarding symptom relief at a mean of 5.4 months after therapy, including daytime incontinence, nocturnal enuresis, urgency, frequency and hoarding. Three patients in each group experienced urinary tract infection following treatment, compared to 42 and 41 before treatment in the nonanimated and animated groups, respectively. Dysfunctional voiding resolved in 95% of patients in both groups. Post-void residual reduction was similar, namely from 35% to 9% of pre-void volume in the nonanimated group, and from 28% to 8% in the animated group. Children in the animated biofeedback group achieved success in significantly fewer sessions (3.6) than those undergoing nonanimated biofeedback (7.6, t test p <0.05). CONCLUSIONS: Despite our proved experience with nonanimated biofeedback systems and our inexperience with an animated system, animated biofeedback systems yielded similar results in a significantly shorter time. Animated and nonanimated biofeedback is efficacious in the treatment of dysfunctional voiding and its symptoms.


Subject(s)
Biofeedback, Psychology/methods , Urination Disorders/therapy , Child , Electromyography , Female , Humans , Motion Pictures , Time Factors , Urination Disorders/physiopathology
20.
J Endourol ; 22(4): 713-8, 2008 Apr.
Article in English | MEDLINE | ID: mdl-18419216

ABSTRACT

BACKGROUND AND PURPOSE: Minimally invasive office-based treatments for benign prostatic hyperplasia (BPH) are challenging the traditional surgical and medical management options for symptomatic BPH. We conducted a meta-analysis of published randomized controlled trials that compared high-energy transurethral microwave thermotherapy (HE-TUMT) with transurethral resection of the prostate (TURP) to compare subjective and objective outcomes. MATERIALS AND METHODS: A literature search using Pub-Med was conducted to obtain all published data on HE-TUMT and all randomized controlled trials that compared HE-TUMT with TURP. Data were analyzed focusing on the pretreatment and posttreatment end points of the International Prostate Symptom Score(IPSS), maximum flow rate (Q(max)), and postvoid residual (PVR). A meta-analysis was conducted, and data were stratified with respect to the type of HE-TUMT machinery used. RESULTS: A total of 458 patients were studied. Differences in IPSS, Q(max), and PVR from current trials that compared TURP with HE-TUMT are best evaluated at 1-year follow-up. At this time point, changes in Q(max) (P < 0.001), IPSS (P = 0.01), and PVR (P = 0.02) are more significant if TURP is the management mode. HE-TUMT with the CoreTherm() device demonstrates the most significant improvements in subjective and objective criteria that approximate outcomes with TURP (Figs. 1-3). CONCLUSIONS: A meta-analysis of current randomized controlled trials that compared TURP with HE-TUMT demonstrates more significant changes in Q(max), IPSS, and PVR when TURP is used to manage symptomatic BPH. Despite these statistical differences, stratified data demonstrate that current HE-TUMT machinery is more effective than previously used lower-energy machinery, especially at objective end points. This is most evident when the CoreTherm device is used. These findings, coupled with the decreased costs and morbidity associated with HE-TUMT, support this treatment as a reasonable alternative to TURP.


Subject(s)
Prostatic Hyperplasia/surgery , Transurethral Resection of Prostate , Humans , Male , Microwaves/therapeutic use , Prostatic Hyperplasia/physiopathology , Randomized Controlled Trials as Topic , Transurethral Resection of Prostate/instrumentation , Treatment Outcome , Urination/physiology
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