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1.
Pediatr Nephrol ; 38(7): 2147-2153, 2023 07.
Article in English | MEDLINE | ID: mdl-36598599

ABSTRACT

BACKGROUND: Renal hypertension causes left ventricular (LV) hypertrophy leading to cardiomyopathy. Nephrectomy has been utilized to improve blood pressure and prepare for kidney transplantation in the pediatric population. We sought to investigate antihypertensive medication (AHM) requirement and LV mass in patients undergoing nephrectomy with renal hypertension. METHODS: We performed a single institution retrospective review from 2009 to 2021 of children who have undergone nephrectomy for hypertension. Primary outcome was decrease in number of AHM. Secondary outcomes included change in LV mass and elimination of AHM. LV mass was measured using echocardiogram area-length and linear measurements. Non-parametric analyses were utilized to assess significance. RESULTS: Thirty-one patients underwent nephrectomy. Median age was 12.5 years (0.8-19 years). Median of 3 AHM (range 1-5 medications) were used pre-operatively and patients had been managed for median 2.5 years. Twenty-nine had preoperative echocardiogram. Forty-eight percent of patients had LVH at nephrectomy. Median AHM after surgery was 1 (range 0-4 medications) at 30 days and 12 months, (p < 0.001). By 12 months after nephrectomy, 79.2% of patients had decreased the number of AHM. Eight (26%) patients were on no AHM 30 days after surgery, and 13 (43%) at 12 months. Systemic vascular disease and multicystic dysplastic kidney were the only factors associated with lack of improvement in AHM (p = 0.040). Fourteen patients had pre- and post-operative echocardiogram and 11 (79%) had improvement in LV mass (p = 0.016, 0.035). CONCLUSIONS: Nephrectomy is effective in improving LV mass and reducing AHM for children with renal hypertension. Improvement is less likely in patients with systemic vascular disease and multicystic dysplastic kidneys. A higher resolution version of the Graphical abstract is available as Supplementary information.


Subject(s)
Hypertension, Renal , Hypertension , Multicystic Dysplastic Kidney , Humans , Child , Antihypertensive Agents/therapeutic use , Hypertension, Renal/drug therapy , Nephrectomy/adverse effects , Hypertension/complications , Hypertension/drug therapy , Blood Pressure , Multicystic Dysplastic Kidney/complications , Hypertrophy, Left Ventricular/etiology
2.
J Urol ; 201(5): 1012-1016, 2019 05.
Article in English | MEDLINE | ID: mdl-30688774

ABSTRACT

PURPOSE: We assessed the impact of a 2-phase Plan-Do-Study-Act cycle to decrease opioid prescriptions following pediatric urological surgery. MATERIALS AND METHODS: Parents of children undergoing outpatient urological procedures were given questionnaires to assess opioid dosing and pain scores using the Parents' Postoperative Pain Measure scale. Age, procedure and opioid prescription data were recorded, as well as volume of medication administered. During the first phase of data collection children received an opioid prescription for 10 doses. In the second phase opioid prescriptions were reduced by 50%. Nonparametric tests and Fisher exact test were used for analysis. RESULTS: Of 250 eligible children 98 (39%) with a median age of 3.0 years (IQR 7.0) participated. In the 81 patients prescribed opioids a median of 2 doses (IQR 3.6) were used in the preintervention and postintervention groups (p = 0.68). Using nonparametric statistical testing, no significant differences were found between pain scores in the 5-dose group (31 patients) and the 10-dose group (24 patients; p = 0.05 for day 1, p = 0.07 for day 2, p = 0.06 for day 3). There was no association between age and percent opioid used (p = 0.83). There were no significant differences in median pain scores or median doses among procedure types. CONCLUSIONS: In outpatient pediatric surgical practice opioid prescriptions can be decreased without increasing pain scores. Physician prescribing practices may contribute more to opioid consumption than actual pain patterns.


Subject(s)
Ambulatory Surgical Procedures/methods , Analgesics, Opioid/administration & dosage , Drug Utilization/statistics & numerical data , Pain, Postoperative/drug therapy , Urologic Surgical Procedures/adverse effects , Ambulatory Surgical Procedures/adverse effects , Child , Child, Preschool , Cohort Studies , Databases, Factual , Female , Follow-Up Studies , Humans , Male , Outpatients/statistics & numerical data , Pain Management/methods , Pain Measurement , Pain, Postoperative/diagnosis , Pediatrics , Risk Assessment , Treatment Outcome , Urologic Surgical Procedures/methods
3.
Int Braz J Urol ; 45(4): 807-814, 2019.
Article in English | MEDLINE | ID: mdl-31063284

ABSTRACT

PURPOSE: The vesicostomy button has been shown to be a safe and effective bladder management strategy for short- or medium-term use when CIC cannot be instituted. This study reports our use with the vesicostomy button, highlighting the pros and cons of its use and complications. We then compared the quality or life in patients with vesicostomy button to those performing clean intermittent catheterization. MATERIALS AND METHODS: Retrospective chart review was conducted on children who had a vesicostomy button placed between 2011 and 2015. Placement was through existing vesicostomy, open or endoscopically. We then evaluated placement procedure and complications. A validated quality of life questionnaire was given to patients with vesicostomy button and to a matched cohort of patients performing clean intermittent catheterization. RESULTS: Thirteen children have had a vesicostomy button placed at our institution in the 4 year period, ages 7 months to 18 years. Indications for placement included neurogenic bladder (5), non-neurogenic neurogenic bladder (3), and valve bladders (5). Five out of 7 placed via existing vesicostomy had leakage around button. None of the endoscopically placed buttons had leakage. Complications were minor including UTI (3), wound infection (1), and button malfunction/leakage (3). QOL was equal and preserved in patients living with vesicostomy buttons when compared to CIC. CONCLUSION: The vesicostomy button is an acceptable alternative to traditional vesicostomy and CIC. The morbidity of the button is quite low. Endoscopic insertion is the optimal technique. QOL is equivalent in patients with vesicostomy button and those who perform CIC.


Subject(s)
Cystostomy/methods , Quality of Life , Adolescent , Child , Child, Preschool , Cystostomy/instrumentation , Female , Follow-Up Studies , Humans , Infant , Intermittent Urethral Catheterization/methods , Male , Reproducibility of Results , Retrospective Studies , Surveys and Questionnaires , Time Factors , Treatment Outcome , Urinary Bladder, Neurogenic/surgery
4.
Pediatr Transplant ; 21(1)2017 Feb.
Article in English | MEDLINE | ID: mdl-27781344

ABSTRACT

To describe a multicenter experience with management of ureteral obstruction after injection of Dx/HA for VUR in pediatric renal transplant patients. The records of all pediatric renal transplant patients who underwent Dx/HA injection for VUR and had subsequent obstruction were identified, and the management and outcomes were reviewed. Follow-up ranged from 1 to 10 years. There were four patients identified, all of whom had a history of rising creatinine, recurrent UTI, and increasing hydronephrosis which led to the diagnosis of high-grade VUR. Obstruction was diagnosed within 24-72 hours after injection in three patients. One patient was asymptomatic, and rising creatinine and hydronephrosis were noted 1 month after injection. One patient was managed expectantly, while three patients underwent ureteral stent placement. After the stent was removed, one patient went on to open reimplant due to delayed obstruction, the second patient with voiding dysfunction is currently managed with an indwelling ureteral stent and may require further definitive surgery, the third patient recovered, and the fourth is being observed. Our cases illustrate that despite initial successful management of the obstruction in some, delayed obstruction is possible and may necessitate open reimplant. It is imperative that these patients have close follow-up after Dx/HA.


Subject(s)
Endoscopy/adverse effects , Kidney Transplantation/adverse effects , Renal Insufficiency/complications , Renal Insufficiency/surgery , Ureteral Obstruction/etiology , Vesico-Ureteral Reflux/surgery , Child , Child, Preschool , Creatinine/analysis , Female , Humans , Hyaluronic Acid/administration & dosage , Hydronephrosis/complications , Male , Retrospective Studies , Risk , Treatment Outcome , Ureter/pathology , Urinary Tract Infections/complications
5.
Int Braz J Urol ; 42(2): 277-83, 2016.
Article in English | MEDLINE | ID: mdl-27256182

ABSTRACT

PURPOSE: To describe our experience utilizing Laparoendoscopic single site (LESS) surgery in pediatric urology. MATERIALS AND METHODS: Retrospective chart review was performed on LESS urologic procedures from November 2009 through March 2013. A total of 44 patients underwent 54 procedures including: nephrectomy (23), orchiopexy (14), varicocelectomy (9), orchiectomy (2), urachal cyst excision (3), and antegrade continence enema (3) (ACE). RESULTS: Median patient age was 6.9 years old. Estimated blood loss (EBL), ranged from less than 5cc to 47cc for a bilateral nephrectomy. Operative time varied from 56 mins for varicocelectomy to a median of 360 minutes for a bilateral nephroureterectomy. Incision length ranged between 2 and 2.5cm. In our initial experience we used a commercial port. However, as we progressed, we were able to perform the majority of our procedures via adjacent fascial punctures for instrumentation at the single incision site. One patient did require conversion to an open procedure as a result of bleeding. Three complications were noted (6.8%), with two Clavien Grade 3b complications. Two patients required additional procedures at 1-year follow-up. CONCLUSIONS: The use of LESS applies to many pediatric urologic procedures, ideally for ablative procedures or simple reconstructive efforts. The use of adjacent fascial puncture sites for instrumentation can obviate the need for a commercial port or multiple trocars.


Subject(s)
Laparoscopy/methods , Urologic Diseases/surgery , Urologic Surgical Procedures/methods , Adolescent , Child , Child, Preschool , Female , Humans , Infant , Laparoscopy/instrumentation , Length of Stay , Male , Operative Time , Postoperative Complications , Reproducibility of Results , Retrospective Studies , Treatment Outcome , Urologic Surgical Procedures/instrumentation
6.
Pediatr Transplant ; 19(5): 484-91, 2015 Aug.
Article in English | MEDLINE | ID: mdl-26037710

ABSTRACT

Approximately 800 pediatric renal transplants are performed annually in the United States. VUR or obstruction may cause graft failure requiring redo ureteroneocystostomy. We examined possible risk factors and cost using the PHIS national database. We examined the PHIS for 8.5 yr to determine the association between redo ureteroneocystostomy following pediatric renal transplant to demographics, comorbidities, GU conditions, insurance status, and hospital characteristics, and looked at relative costs using descriptive and comparative statistics. A total of 2390 pediatric renal transplants were identified, of which 69 (2.3%) underwent redo ureteroneocystostomy (median 11.6 months post-transplant). Risk factors for redo ureteroneocystostomy are younger age (p = 0.048), PUVs (p < 0.001), female gender (p = 0.005), race (p = 0.014), insurance type (p < 0.027), region (p = 0.045), and transplant surgery volume (p = 0.048). Redo ureteroneocystostomy after transplant does not significantly increase the overall cost of transplant (p = 0.175). We confirmed previous findings that younger age and PUVs increase the risk of post-transplant redo ureteroneocystostomy, with a five-yr plateau. We found an association with gender, race, insurance status, and hospital characteristics. Redo ureteroneocystostomy, which increases costs, does not statistically significantly increase overall cost of individual treatment in this database, although costs may be underreported.


Subject(s)
Cystostomy/economics , Cystostomy/statistics & numerical data , Kidney Transplantation/adverse effects , Kidney Transplantation/economics , Reoperation/economics , Reoperation/statistics & numerical data , Adolescent , Child , Child, Preschool , Cohort Studies , Databases, Factual , Female , Humans , Insurance, Health , Kaplan-Meier Estimate , Male , Proportional Hazards Models , Risk Factors , United States , Ureter/surgery
7.
Urolithiasis ; 52(1): 124, 2024 Sep 04.
Article in English | MEDLINE | ID: mdl-39230669

ABSTRACT

The aim of this study was to construct the sixth in a series of guidelines on the treatment of urolithiasis by the International Alliance of Urolithiasis (IAU) that by providing a clinical framework for the management of pediatric patients with urolithiasis based on the best available published literature. All recommendations were summarized following a systematic review and assessment of literature in the PubMed database from January 1952 to December 2023. Each generated recommendation was graded using a modified GRADE methodology. Recommendations are agreed upon by Panel Members following review and discussion of the evidence. Guideline recommendations were developed that addressed the following topics: etiology, risk factors, clinical presentation and symptoms, diagnosis, conservative management, surgical interventions, prevention, and follow-up. Similarities in the treatment of primary stone episodes between children and adults, incorporating conservative management and advancements in technology for less invasive stone removal, are evident. Additionally, preventive strategies aiming to reduce recurrence rates, such as ensuring sufficient fluid intake, establishing well-planned dietary adjustments, and selective use pharmacologic therapies will also result in highly successful outcomes in pediatric stone patients. Depending on the severity of metabolic disorders and also anatomical abnormalities, a careful and close follow-up program should inevitably be planned in each pediatric patient to limit the risk of future recurrence rates.


Subject(s)
Urolithiasis , Humans , Urolithiasis/therapy , Urolithiasis/diagnosis , Child
8.
J Pediatr Urol ; 18(5): 675.e1-675.e7, 2022 Oct.
Article in English | MEDLINE | ID: mdl-36167649

ABSTRACT

BACKGROUND: Nearly 13,000 pediatric renal transplantations have been performed since 1987 with improving overall mortality and morbidity; however, graft infection remains a significant post-transplant concern. Recurrent urinary tract infections in pediatric patients with vesicoureteral reflux into their renal transplant can result in graft dysfunction, increased hospital cost, and impaired social and cognitive development due to time spent hospitalized. OBJECTIVE: To evaluate the effect of revision ureteroneocystostomy on pediatric renal transplant patients with symptomatic vesicoureteral reflux in reducing hospitalizations and recurrent urinary tract infections. METHODS: We retrospectively reviewed pediatric patients from 2002 through 2021 who underwent renal transplantation and required revision ureteroneocystostomy due to symptomatic vesicoureteral reflux. We analyzed the differences in days hospitalized, days hospitalized due to urinary tract infection, and treated urinary tract infections prior to and after revision ureteroneocystostomy. RESULTS: Ten patients requiring revision ureteroneocystostomy secondary to symptomatic vesicoureteral reflux were identified. There was no difference in the observation time between transplant to revision, and revision to last follow up (2.3 years (IQR 1.3-6.5) vs 1.7 years (IQR 1-6.7), p = 0.4446). Overall, there was a significant decrease in the total number of hospitalization days (21.5 days (IQR 3-43) vs 5.5 days (IQR 0-9), p = 0.006), total number of hospitalization days related to urinary tract infection (14.5 days (IQR 3-28) vs 0 days (IQR 0-3), p = 0.008) and treated urinary tract infections (3.5 (IQR 3-6) vs 1 (IQR 0-2), p = 0.019) following revision ureteroneocystostomy. The rate of hospitalization days for urinary tract infection was also significantly decreased following revision ureteroneocystostomy (7.15 per/year (IQR 0.4-11.75) vs 0 per/year (IQR 0-0.8), p = 0.008). DISCUSSION: Symptomatic vesicoureteral reflux in pediatric transplant patients is difficult to manage and some patients will ultimately require surgery. There have been previous studies on the success of revision ureteroneocystostomy in treating reflux but no data on the reduction in hospitalizations associated with recurrent infections following the procedure. Limitations of this study are the small cohort size, retrospective nature, multi-surgeon study, and inherent selection bias due to evaluation of only surgical patients. CONCLUSION: Revision ureteroneocystostomy can limit the negative consequences of recurrent graft infections with reduction in hospitalization days and improved hospitalization rates due to urinary tract infections. The reduction in hospitalizations can greatly improve the cost of care along with quality of life for transplant patients and should be strongly considered in children with symptomatic vesicoureteral reflux who have failed conservative therapy.


Subject(s)
Kidney Transplantation , Vesico-Ureteral Reflux , Humans , Child , Retrospective Studies , Quality of Life , Vesico-Ureteral Reflux/etiology , Vesico-Ureteral Reflux/surgery , Patients , Postoperative Complications/epidemiology , Postoperative Complications/surgery
9.
Pediatr Transplant ; 15(4): 396-9, 2011 Jun.
Article in English | MEDLINE | ID: mdl-21585628

ABSTRACT

End-stage renal failure management in children may require bilateral kidney removal prior to transplantation secondary to recurrent urinary tract infections, renin-dependent hypertension, vesicoureteral reflux, proteinuria, risk of malignancy (Denys-Drash), or high output renal failure. Conventional laparoscopy or open nephrectomy has been employed to date. However, we present our method of bilateral nephrectomy in four patients via the SILS Covidien © system. Patient age ranged from 18 months to 18 years. Operative time ranged from 308 to 370 minutes. Estimated blood loss was minimal, all cases were completed via the single incision and no cases were converted to open. Laparoendoscopic single-site bilateral nephrectomy is safe and feasible in children and well-suited for the pre-transplant population.


Subject(s)
Kidney Failure, Chronic/surgery , Kidney Transplantation/methods , Laparoscopy/methods , Natural Orifice Endoscopic Surgery/methods , Nephrectomy/methods , Adolescent , Child , Child, Preschool , Female , Follow-Up Studies , Graft Rejection , Graft Survival , Humans , Infant , Kidney Failure, Chronic/diagnosis , Kidney Transplantation/adverse effects , Male , Minimally Invasive Surgical Procedures/methods , Nephrectomy/adverse effects , Pain Measurement , Pain, Postoperative/physiopathology , Postoperative Complications/physiopathology , Preoperative Care/methods , Risk Assessment , Sampling Studies , Treatment Outcome , Umbilicus/surgery
10.
J Pediatr Urol ; 15(6): 624.e1-624.e6, 2019 Dec.
Article in English | MEDLINE | ID: mdl-31582337

ABSTRACT

BACKGROUND: Indwelling ureteral stents are commonly placed in urologic surgeries where optimal urinary drainage is necessary. In the pediatric population, removing a stent without retrieval string (SWOS) requires a secondary operation and additional anesthetic exposure. Although these burdens can be mitigated through the placement of a stent with retrieval string (SWS), fears of complications may prevent widespread adoption of this practice by pediatric urologists. OBJECTIVE: The authors sought to assess the differential cost of removing SWS and SWOS. It was hypothesized that costs associated with removing SWS are significantly lower than those associated with removing SWOS, without increasing complications. STUDY DESIGN: A retrospective chart review was performed on pediatric patients undergoing common urologic surgeries with concurrent stent placement at a single tertiary referral center. Charges and healthcare costs surrounding the removal of ureteral stents were evaluated using the institution-specific ratio of cost to charges, by estimating lost wages, and by exploring differences in poststent healthcare-related events that incur additional cost. RESULTS: A total of 109 patients with a median age of 5 years (range: 6 months-20 years) were reviewed. A total of 29 patients had SWS, and 80 had SWOS. The theoretical cost of SWS removal in clinic was $400.48 compared with $2290.86 ± $119.30 for operative removal of SWOS, with mean difference of $1890.38 (P < 0.01). The mean stent duration of SWOS was 34.0 ± 13.2 days vs. 10.1 ± 4.9 days for SWS (P < 0.01). Subgroup analysis of the ureteral reconstruction group showed no difference in any complications (35% vs 27%, respectively), early dislodgment (7% vs 7%, respectively) or costly healthcare utilization (23% vs 20%, respectively) among patients with SWOS compared with those with SWS. In SWS group with early dislodgment, neither required a secondary procedure. DISCUSSION: With rising healthcare expenditures, physicians must be able to provide cost-effective treatment while not compromising safety or outcomes. Unlike prior analyses of cost related to the type of the stent used, the present study specifically reviewed costs of removing SWS versus SWOS and evaluated rates of costly complications. The study findings provide a preliminary basis for advocating the more economical use of SWS when indicated. Lack of power and heterogeneity of the groups need to be addressed in future analyses with larger, matched cohorts. CONCLUSION: Removal of SWS is more cost-effective than that of SWOS while maintaining similar safety outcomes and should be considered in certain pediatric urology cases to decrease healthcare cost. SWS should be preferred for uncomplicated ureteroscopy, but benefits are less certain in ureteral reconstruction; further studies are needed.


Subject(s)
Device Removal/economics , Health Expenditures , Stents , Ureter/surgery , Urologic Diseases/surgery , Urologic Surgical Procedures/economics , Adolescent , Child , Child, Preschool , Costs and Cost Analysis , Female , Follow-Up Studies , Humans , Infant , Male , Retrospective Studies , Urologic Diseases/economics , Young Adult
11.
J Urol ; 180(4): 1336-9; discussion 1340-1, 2008 Oct.
Article in English | MEDLINE | ID: mdl-18707696

ABSTRACT

PURPOSE: We gained insights concerning outcomes associated with men who elect active surveillance for the management of localized prostate cancer. MATERIALS AND METHODS: This is a retrospective case series analysis of 40 patients diagnosed with localized prostate cancer since 1990 who elected active surveillance. RESULTS: A total of 31 patients remained on active surveillance for a median of 48 months (range 12 to 168). The 5-year probability of remaining on active surveillance was 74%. Most patients who abandoned this strategy did so within 33 months of diagnosis (range 12 to 84). An increasing prostate specific antigen and anxiety were the 2 most common reasons. A delay in treatment did not appear to compromise subsequent outcomes. CONCLUSIONS: Men with low grade prostate cancer can elect active surveillance and have excellent long-term results.


Subject(s)
Monitoring, Physiologic/methods , Prostate-Specific Antigen/blood , Prostatic Neoplasms/blood , Prostatic Neoplasms/pathology , Age Factors , Aged , Aged, 80 and over , Biomarkers, Tumor/blood , Biopsy, Needle , Follow-Up Studies , Humans , Immunohistochemistry , Male , Middle Aged , Observation/methods , Probability , Prostatic Neoplasms/mortality , Prostatic Neoplasms/therapy , Retrospective Studies , Risk Assessment , Sensitivity and Specificity , Survival Rate , Time Factors
12.
West J Emerg Med ; 16(1): 190-4, 2015 Jan.
Article in English | MEDLINE | ID: mdl-25671040

ABSTRACT

INTRODUCTION: Studies have demonstrated that variables other than duration of symptoms can affect outcomes in children with acute testicular torsion. We examined demographic and logistical factors, including inter-hospital transfer, which may affect outcomes at a tertiary pediatric referral center. METHODS: We reviewed charts of all pediatric patients with acute testicular torsion during a five-year period. Data were collected regarding age, insurance type, socioeconomic status, duration of symptoms prior to presentation, transfer status, time of day, time to surgical exploration, and testicular salvage. RESULTS: Our study included 114 patients. Testicular salvage was possible in 55.3% of patients. Thirty-one percent of patients included in the study were transferred from another facility. Inter-hospital transfer did not affect testicular salvage rate. Time to surgery and duration of pain were higher among patients who underwent orchiectomy versus orchidopexy. Patients older than eight years of age were more likely to undergo orchidopexy than those younger than eight (61.5% vs. 30.4%, p=0.01). Ethnicity, insurance type, or time of day did not affect the testicular salvage rates. On multivariate analysis, only duration of symptoms less than six hours predicted testicular salvage (OR 22.5, p<0.001). CONCLUSION: Even though inter-hospital transfer delays definitive surgical management, it may not affect testicular salvage rates. Time to presentation is the most important factor in predicting outcomes in children with acute testicular torsion.


Subject(s)
Orchiectomy/statistics & numerical data , Orchiopexy/statistics & numerical data , Spermatic Cord Torsion/surgery , Acute Disease , Adolescent , California , Child , Emergency Service, Hospital , Humans , Male , Retrospective Studies , Risk Factors , Spermatic Cord Torsion/diagnosis , Time Factors
13.
J Soc Gynecol Investig ; 10(8): 460-8, 2003 Dec.
Article in English | MEDLINE | ID: mdl-14662158

ABSTRACT

OBJECTIVE: Three protease-activated receptor (PAR1, 3, and 4) isoforms have been shown to be responsible for the cellular effects of thrombin; another PAR isoform (PAR2) is responsible for the cellular effects of trypsin. The present studies sought to test the hypothesis that one (or more) of these PAR isoforms is expressed in myometrial tissue, thereby accounting for the uterotonic effects of these novel agonists. METHODS: The rat PAR3 and 4 isoforms were cloned from a rat spleen cDNA library. PAR isoform mRNA expression was determined by using reverse-transcriptase polymerase chain reactions (PCR) in Sprague-Dawley rats. Confirmation of the identity of the amplified mRNA was done by sequence analysis. Relative quantification of the PAR1 and PAR2 isoforms was performed using a real-time quantitative reverse transcriptase PCR (RT-PCR) technique. PAR protein expression was confirmed by Western blots using polyclonal antibodies. RESULTS: The rat PAR3 and 4 homologues showed significant sequence homology to the mouse and human amino acid and nucleotide sequences. The RT-PCR studies confirmed PAR1-4 expression in myometrium from rats in estrus. PAR3 was expressed in uterus, spleen, kidney, liver, lung, brain, and heart. PAR4 was expressed in uterus, spleen, and lung. Messenger RNA for the PAR1 and 2 isoforms was expressed during the second half of gestation in myometrium from timed-pregnant rats. In contrast, mRNA for the PAR3 and 4 isoforms was not detected in gestational myometrium. PAR protein expression appeared to match tissue mRNA expression patterns. CONCLUSION: These RT-PCR studies confirmed ubiquitous expression of the PAR1 and PAR2 isoforms in myometrium and other rat tissues; in contrast, the PAR3 and PAR4 isoforms are expressed in a tissue-specific and gestationally related pattern.


Subject(s)
Myometrium/physiology , Pregnancy, Animal/metabolism , Receptor, PAR-1/metabolism , Receptors, Proteinase-Activated/metabolism , Animals , Blotting, Western , Cloning, Molecular , Estrus/physiology , Female , Gene Expression , Gene Expression Regulation, Developmental , Pregnancy , Protein Isoforms , Rats , Rats, Sprague-Dawley , Receptor, PAR-1/genetics , Receptor, PAR-2/genetics , Receptor, PAR-2/metabolism , Receptors, Proteinase-Activated/genetics
14.
Int. braz. j. urol ; 45(4): 807-814, July-Aug. 2019. tab, graf
Article in English | LILACS | ID: biblio-1019878

ABSTRACT

ABSTRACT Purpose The vesicostomy button has been shown to be a safe and effective bladder management strategy for short- or medium-term use when CIC cannot be instituted. This study reports our use with the vesicostomy button, highlighting the pros and cons of its use and complications. We then compared the quality or life in patients with vesicostomy button to those performing clean intermittent catheterization. Materials and Methods Retrospective chart review was conducted on children who had a vesicostomy button placed between 2011 and 2015. Placement was through existing vesicostomy, open or endoscopically. We then evaluated placement procedure and complications. A validated quality of life questionnaire was given to patients with vesicostomy button and to a matched cohort of patients performing clean intermittent catheterization. Results Thirteen children have had a vesicostomy button placed at our institution in the 4 year period, ages 7 months to 18 years. Indications for placement included neurogenic bladder (5), non-neurogenic neurogenic bladder (3), and valve bladders (5). Five out of 7 placed via existing vesicostomy had leakage around button. None of the endoscopically placed buttons had leakage. Complications were minor including UTI (3), wound infection (1), and button malfunction/leakage (3). QOL was equal and preserved in patients living with vesicostomy buttons when compared to CIC. Conclusion The vesicostomy button is an acceptable alternative to traditional vesicostomy and CIC. The morbidity of the button is quite low. Endoscopic insertion is the optimal technique. QOL is equivalent in patients with vesicostomy button and those who perform CIC.


Subject(s)
Humans , Male , Female , Infant , Child, Preschool , Child , Adolescent , Quality of Life , Cystostomy/methods , Time Factors , Urinary Bladder, Neurogenic/surgery , Cystostomy/instrumentation , Surveys and Questionnaires , Reproducibility of Results , Retrospective Studies , Follow-Up Studies , Treatment Outcome , Intermittent Urethral Catheterization/methods
15.
Nephrourol Mon ; 6(5): e20263, 2014 Sep.
Article in English | MEDLINE | ID: mdl-25695034

ABSTRACT

BACKGROUND: Bladder reconstruction in the pediatric population is challenging for many reasons, including perioperative complications and readmissions. OBJECTIVES: On a national scale, determine readmission rates at 30, 60 and 90 days after bladder reconstruction in a pediatric population over a 7-year period, evaluating the influence of hospital and patient-specific variables. PATIENTS AND METHODS: Using the Pediatric Health Information System database, we identified patients 0-17 years of age, from 2004-2010, undergoing bladder reconstruction using ICD-9 procedure codes. Descriptive statistics characterized demographics, prevalence of surgeries, and readmission rates. Surgery prevalence over time was examined using linear regression. Readmission rates were compared using the Chi2 test. Regression was used to evaluate the influence of variables on readmission risk. RESULTS: We identified 1,985 patients for inclusion, of which 52.7% were female. Median age was 9 years. There has been no change in the prevalence of bladder reconstruction surgeries (P = 0.327). There was no change in 30-day (P = 0.272), 60-day (P = 0.788) or 90-day readmission rates (P = 0.924). Despite surgical volume adjustment, 90-day readmission rates did not significantly vary among the majority of hospitals. Initial LOS > 7 days (P < 0.001) and complex chronic condition males (P < 0.001) were significantly associated with 90-day readmission. CONCLUSIONS: No improvement in readmission rates after pediatric bladder reconstruction was observed during the study period. Nearly all centers have a similar readmission rate despite volume adjustment.

16.
J Pediatr Urol ; 10(2): 391-3, 2014 Apr.
Article in English | MEDLINE | ID: mdl-23958175

ABSTRACT

Minimal incision laparoscopy-assisted open pyeloplasty (MILAP) incorporates elements of open pyeloplasty (OP) and single incision laparoscopy to improve technical ease and cosmetic outcomes. Six MILAP procedures were performed using a single transumbilical incision through which the ureteropelvic junction (UPJ) is mobilized with standard laparoscopic instrumentation. The UPJ is brought extracorporeally through a 1-cm flank incision, and a traditional Anderson-Hynes open pyeloplasty is performed. Compared with OP, perioperative outcomes were similar. Follow-up renal scans all showed improvement of obstruction. A 1-cm flank incision is the only obvious scar.


Subject(s)
Kidney Pelvis/surgery , Laparoscopy/methods , Urologic Surgical Procedures/methods , Adolescent , Blood Loss, Surgical , Child , Child, Preschool , Cicatrix/prevention & control , Cohort Studies , Female , Follow-Up Studies , Humans , Infant , Laparoscopes , Length of Stay , Male , Microdissection/methods , Operative Time , Risk Assessment , Time Factors , Treatment Outcome
17.
J Pediatr Urol ; 9(4): e139-43, 2013 Aug.
Article in English | MEDLINE | ID: mdl-23510697

ABSTRACT

Genitourinary rhabdomyosarcoma of the newborn is extremely rare. We present a case report of a newborn delivered with a palpable abdominal mass revealing rhabdomyosarcoma on biopsy. Prenatal care was normal. The child was treated with multimodal therapy including extensive chemotherapy, surgical excision, and radiation therapy. Surgical excision included cystoprostatectomy, ureterostomy, abdominoperineal resection and colostomy placement. He continued to progress and eventually succumbed to his disease.


Subject(s)
Neonatal Screening , Rhabdomyosarcoma/diagnosis , Urogenital Neoplasms/diagnosis , Biopsy , Fatal Outcome , Humans , Infant, Newborn , Magnetic Resonance Imaging , Male , Rhabdomyosarcoma/therapy , Time Factors , Tomography, X-Ray Computed , Urogenital Neoplasms/therapy
18.
J Pediatr Urol ; 9(5): 609-12, 2013 Oct.
Article in English | MEDLINE | ID: mdl-22726750

ABSTRACT

OBJECTIVES: (1) Determine the number of urologic conditions diagnosed by computed tomography (CT) in children in the emergency department setting. (2) Identify which diagnoses were incidental. (3) Determine how often there was urologic follow-up by a local pediatric urologist. PATIENTS AND METHODS: We reviewed the charts and radiologist interpretations of all CT scans of the abdomen and pelvis performed within 2 days of admission via our emergency department from July 2007 to June 2009. Patients were included if the diagnosis was new. If a urologic finding was noted on final read, the CT was re-examined by one of our urologists to verify the finding. RESULTS: Among 2991 CT scans (one CT scan per patient), there were 213 (7%) new urologic findings: 124 were incidental; 144 patients (68% of patients with urologic findings) did not receive follow-up. Renal abnormalities were present in 127. The most common finding was renal cyst (69 patients). Ureteral abnormalities were present in 47. The most common ureteral finding was hydroureteronephrosis (40). Other anomalies identified included bladder (7) and scrotal (14) abnormalities, stones (13), and adrenal lesions (5). CONCLUSION: Many urologic diagnoses are revealed during CT scans of the abdomen and pelvis. The majority are cysts, hydroureteronephrosis, and pyelonephritis. Many incidental findings have also been revealed in the emergency department setting.


Subject(s)
Incidental Findings , Kidney Diseases/diagnostic imaging , Pelvis/diagnostic imaging , Tomography, X-Ray Computed , Urologic Diseases/diagnostic imaging , Adolescent , Adult , Child , Child, Preschool , Cysts/diagnostic imaging , Emergency Service, Hospital , Female , Humans , Hydronephrosis/diagnostic imaging , Infant , Infant, Newborn , Male , Pyelonephritis/diagnostic imaging , Radiography, Abdominal , Retrospective Studies , Young Adult
19.
PM R ; 5(10): 825-31, 2013 Oct.
Article in English | MEDLINE | ID: mdl-23707568

ABSTRACT

OBJECTIVE: To determine which clinical (health status) and nonclinical (demographic) factors may affect perceptions of quality of life in children with spina bifida and their parents. DESIGN: A prospective study by using a validated questionnaire. SETTING: A multidisciplinary spina bifida clinic at a pediatric tertiary referral center. PATIENTS: Thirty-three children with spina bifida aged 5-18 years and 41 parents of children with spina bifida aged 2-18 years completed questionnaires after informed consent was obtained. METHODS: The Peds QL 4.0 Short Form 15 questionnaire was administered to children with spina bifida and their parents. Additional data were collected, including socioeconomic status, self-reported ethnicity, insurance status, ambulatory status, presence of shunted hydrocephalus, and continence. All completed questionnaires were included in the final analysis. RESULTS: Self-reported physical and psychosocial health scores for patients in our study were lower than previously published scores from healthy children. Patients with a shunted hydrocephalus had significantly lower self-reported physical health scores compared with those without shunted hydrocephalus (61.4 versus 39.3; P = .015). Self-reported physical health score in those with shunted hydrocephalus improved with age (Spearman ρ = 0.42; P = .017). Shunted hydrocephalus remained significant on multivariate analysis. Ethnicity, insurance, socioeconomic status, ambulatory status, and urinary and fecal continence were not associated with self-reported physical or psychosocial scores. Parent-reported scores were not associated with any of the variables of interest. There was excellent correlation between parent-reported and self-reported psychosocial health scores (Spearman ρ = 0.636; P < .001) but not physical health scores (Spearman ρ = 0.023; P = .905). CONCLUSIONS: Shunted hydrocephalus has a negative impact on the perception of quality of life, an effect that may be attenuated by age. Further study and more-specific measurement tools are needed to better understand health-related quality of life in children with spina bifida.


Subject(s)
Health Status , Hydrocephalus/rehabilitation , Quality of Life , Spinal Dysraphism/rehabilitation , Adolescent , Child , Child, Preschool , Female , Humans , Hydrocephalus/complications , Male , Multivariate Analysis , Prospective Studies , Spinal Dysraphism/complications , Surveys and Questionnaires
20.
Int. braz. j. urol ; 42(2): 277-283, Mar.-Apr. 2016. tab, graf
Article in English | LILACS | ID: lil-782858

ABSTRACT

ABSTRACT Purpose: To describe our experience utilizing Laparoendoscopic single site (LESS) surgery in pediatric urology. Materials and Methods: Retrospective chart review was performed on LESS urologic procedures from November 2009 through March 2013. A total of 44 patients underwent 54 procedures including: nephrectomy (23), orchiopexy (14), varicocelectomy (9), orchiectomy (2), urachal cyst excision (3), and antegrade continence enema (3) (ACE). Results: Median patient age was 6.9 years old. Estimated blood loss (EBL), ranged from less than 5cc to 47cc for a bilateral nephrectomy. Operative time varied from 56 mins for varicocelectomy to a median of 360 minutes for a bilateral nephroureterectomy. Incision length ranged between 2 and 2.5cm. In our initial experience we used a commercial port. However, as we progressed, we were able to perform the majority of our procedures via adjacent fascial punctures for instrumentation at the single incision site. One patient did require conversion to an open procedure as a result of bleeding. Three complications were noted (6.8%), with two Clavien Grade 3b complications. Two patients required additional procedures at 1-year follow-up. Conclusions: The use of LESS applies to many pediatric urologic procedures, ideally for ablative procedures or simple reconstructive efforts. The use of adjacent fascial puncture sites for instrumentation can obviate the need for a commercial port or multiple trocars.


Subject(s)
Humans , Male , Female , Infant , Child, Preschool , Child , Adolescent , Urologic Surgical Procedures/methods , Urologic Diseases/surgery , Laparoscopy/methods , Postoperative Complications , Urologic Surgical Procedures/instrumentation , Reproducibility of Results , Retrospective Studies , Treatment Outcome , Laparoscopy/instrumentation , Operative Time , Length of Stay
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