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1.
J Pediatr Surg ; 59(6): 1148-1153, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38418274

RESUMO

PURPOSE: To perform a single institution review of spinal instead of general anesthesia for pediatric patients undergoing surgical procedures. Spinal success rate, intraoperative complications, and postoperative outcomes including unplanned hospital admission and emergency department visits within seven days are reported. METHODS: Retrospective chart review of pediatric patients who underwent spinal anesthesia for surgical procedures from 2016 until 2022. Data collected included patient demographics, procedure and anesthetic characteristics, intraoperative complications, unplanned admissions, and emergency department returns. RESULTS: The study cohort included 1221 patients. Ninety-two percent of the patients tolerated their surgical procedure without requiring conversion to general anesthesia, and 78% of patients that had spinals placed successfully did not receive any sedation following lumbar puncture. The most common intraoperative event was systolic blood pressure below 60 mm Hg (14%), but no cases required administration of vasoactive agents, and no serious intraoperative adverse events were observed. Post-Anesthesia Care Unit Phase I was bypassed in 72% of cases with a median postoperative length of stay of 84 min. Forty-six patients returned to the emergency department following hospital discharge, but no returns were due to anesthetic concerns. CONCLUSIONS: Spinal anesthesia is a viable and versatile option for a diversity of pediatric surgical procedures. We noted a low incidence of intraoperative and postoperative complications. There remain numerous potential advantages of spinal anesthesia over general anesthesia in young pediatric patients particularly in the ambulatory setting. LEVEL OF EVIDENCE: IV. TYPE OF STUDY: Retrospective cohort treatment study.


Assuntos
Raquianestesia , Humanos , Raquianestesia/métodos , Estudos Retrospectivos , Criança , Feminino , Masculino , Pré-Escolar , Lactente , Adolescente , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Complicações Intraoperatórias/epidemiologia , Complicações Intraoperatórias/etiologia , Procedimentos Cirúrgicos Operatórios/métodos , Procedimentos Cirúrgicos Operatórios/estatística & dados numéricos , Anestesia Geral/métodos , Anestesia Geral/estatística & dados numéricos
2.
J Pediatr Surg ; 56(11): 1988-1992, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-33752911

RESUMO

BACKGROUND: Patients with anorectal malformations (ARM) commonly have associated urologic anomalies. Few large studies exist to accurately characterize the incidence or associations between severity of malformation and urologic diagnosis. The purpose of our study was to determine the incidence of urologic diagnoses in a large cohort of children with ARM and evaluate for any correlation between severity of ARM and the incidence and number of associated urologic diagnoses. METHODS: A retrospective review was performed of patients with ARM treated at our pediatric colorectal center. All patients underwent protocolized urologic screening. ARM subtypes were ordered with increasing severity as follows in males: perineal, bulbar, prostatic and bladder neck fistulae. Females were similarly categorized as perineal, vestibular and vaginal fistulae followed by cloaca with <3 cm common channel and cloaca with >3 cm common channel. The following urologic diagnoses were assessed to determine whether a correlation existed with the severity of the ARM subtype: hydronephrosis, vesicoureteral reflux (VUR), solitary kidney, renal ascent anomalies (ectopic or pelvic), renal fusion anomalies (horseshoe or cross fused kidney), duplex kidney, hypospadias and undescended testicle. ARM subtypes were defined by distal rectal anatomy. RESULTS: A total of 712 patients were included in our study with a mean age of 4 years and of whom 45% were male. The overall rate of urologic anomalies was greater in males than females (65% vs 56% p < 0.026). In both sexes, the rate of urologic anomalies increased with increasing severity of ARM subtype (p<0.00010) finding that males with bladder neck fistula and females with cloacal malformations, particularly with long common channels, being the highest incidence. In males and females, the rate of hydronephrosis increased as the complexity of ARM increased and this correlated significantly (p < 0.0001 vs p < 0.0003 respectively). Similarly, the incidence of VUR also increased as complexity of ARM increased in both males and females (p = 0.01 and p<0.0001 respectively). The remaining urologic diagnoses were not significantly correlated with severity of ARM. CONCLUSIONS: Urologic anomalies occur at a high rate in children with ARM and appear to increase in frequency with increasing complexity of ARM subtype. These findings stress the importance of proper ARM screening and proactive collaboration with a clinician with expertise in pediatric urology early in the management of such children to improve early recognition of urologic diagnoses. LEVEL OF EVIDENCE: Level III.


Assuntos
Malformações Anorretais , Urologia , Animais , Criança , Pré-Escolar , Cloaca , Feminino , Humanos , Masculino , Reto , Estudos Retrospectivos
3.
J Pediatr Urol ; 16(6): 845.e1-845.e6, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33060019

RESUMO

INTRODUCTION: Minimally invasive (robotic and pure laparoscopic) pyeloplasty has been increasingly used for treatment of ureteropelvic junction obstruction (UPJO). However, few large-scale studies have compared these two modalities directly. METHODS: We performed a retrospective single-center review of all patients who underwent pure laparoscopic (LP) or robotic pyeloplasty (RALP) between 2007 and 2018. Patients were excluded if the initial surgery at our institution was a redo pyeloplasty or if they lacked follow-up information. Outcomes of interest included operative time, length of stay, and complication rates, including rates of secondary procedures. We compared these outcomes between groups using Student's t test for continuous variables and a Chi-square for categorical variables. RESULTS: A total of 282 patients were identified. Forty-eight were excluded based on study criteria; therefore, our total study cohort was 234 patients: 119 RALP and 115 LP cases. Overall mean postoperative follow-up time was 20.8 months, with no significant differences between groups. Mean operative time was shorter in the LP group when compared the RALP group (3 h 7 min vs. 3 h 41 min, p < 0.001). There were no significant differences between groups in length of stay (1.22 days vs 1.50 days, p = 0.095). Complications occurred in 52 patients (22.2% of overall cohort) with no difference in incidence between groups. Twenty-five patients (14 in the RALP group and 11 in the LP group) underwent unplanned secondary procedures; 19 of these patients (9 in the RALP group and 10 in the LP group) needed a procedure to address secondary obstruction. CONCLUSION: We demonstrated no significant differences between RALP and LP in regards to complication rates. Surgeons performing RALP and LP have the potential to offer the same level of care for the surgical management of UPJO, especially in countries where robotic technology may not be readily available.


Assuntos
Laparoscopia , Procedimentos Cirúrgicos Robóticos , Obstrução Ureteral , Humanos , Pelve Renal/cirurgia , Estudos Retrospectivos , Procedimentos Cirúrgicos Robóticos/efeitos adversos , Resultado do Tratamento , Obstrução Ureteral/cirurgia , Procedimentos Cirúrgicos Urológicos
4.
J Pediatr Urol ; 16(5): 592.e1-592.e7, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32278658

RESUMO

INTRODUCTION: In the pediatric patient whose ureteropelvic junction obstruction (UPJO) is not always symptomatic, imaging is the most common means of detecting surgical success. There is interest, however, in other means of post-operative monitoring. A panel of antimicrobial peptides (AMPs) has been previously found to be elevated in UPJO, but the impact of surgical correction on these AMPs is unknown. OBJECTIVE: To determine if elevated levels of candidate urinary AMP biomarkers of urinary tract obstruction decrease following UPJO repair. STUDY DESIGN: Pediatric patients undergoing surgical correction of an UPJO were recruited for participation. Bladder urine from uninfected consenting/assenting patients was collected immediately prior to surgery and then at least 6 months afterward. Based on prior studies demonstrating significant elevation of beta defensin 1 (BD-1), hepatocarcinoma-intestine-pancreas/pancreatitis-associated protein (HIP/PAP), cathelicidin (LL-37), and neutrophil gelatinase-associated lipocalin (NGAL) in patients with UPJO versus control patients, we performed enzyme-linked immunosorbent assays on these four AMPs to compare their expression before and after surgical intervention. If found to significantly decrease, AMP levels were compared to healthy controls. AMP levels were normalized to urine creatinine. Results were analyzed with paired t test or Wilcoxon test using Graphpad software. Correlation was calculated using Pearson or Spearman correlation. A p-value of <0.05 was considered significant. RESULTS: 13 UPJO patients were included in this study; 9 were male (69%). Age at surgery was a median of 4.3 years (average 6.1, range 0.4-18.4 years). Follow-up urine samples were collected a median of 27.4 months after surgery (average 27.4; range 7.8-45.3 months). All 13 patients had clinical improvement and/or signs of improved hydronephrosis on post-operative imaging. HIP/PAP and BD-1 significantly decreased in post-surgical samples compared to pre-surgical samples (p = 0.02 and 0.01, respectively); NGAL and LL-37 did not significantly change. Overall, HIP/PAP decreased in 12 patients (92%) and BD-1 decreased in 11 patients (85%). BD-1 levels after successful repair were not different from healthy controls (p = 0.06). DISCUSSION: Urinary biomarkers of obstruction should detect significant obstructive pathology as well as reflect its resolution. This would enable their use in post-operative monitoring and augment current methods of determining successful surgical outcome through imaging. CONCLUSIONS: The AMPs HIP/PAP and BD-1 are significantly elevated in UPJO but then significantly decrease after pyeloplasty, with BD-1 returning to healthy control levels. As a result, these AMPs could serve as markers of successful surgical intervention.


Assuntos
Hidronefrose , Obstrução Ureteral , beta-Defensinas , Adolescente , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Pelve Renal/cirurgia , Masculino , Obstrução Ureteral/cirurgia , Urinálise , Bexiga Urinária
5.
J Laparoendosc Adv Surg Tech A ; 28(12): 1513-1516, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29924670

RESUMO

INTRODUCTION: Patients with neurogenic bladder frequently also have bowel dysfunction and a simultaneous urologic and colorectal reconstruction is possible. We present our experience with combined reconstructive procedures using robot-assisted laparoscopy, and demonstrate the utility of a minimally invasive approach that considers both the bowel and bladder management of these patients. METHODS: We retrospectively reviewed all patients who underwent combined bowel and urologic reconstruction at our institution since the start of our multidisciplinary robotic program. RESULTS: Seven patients were identified in our cohort with a mean age of 6.4 years (3.8-10.1 years). Six patients had myelomeningocele and 1 had caudal regression. Malone appendicostomies were placed in all 7 patients. A split appendix technique was used as a conduit in 5 patients, in situ appendix in 1, and neoappendicostomy with cecal flap in 1. Six patients had a Mitrofanoff appendiceal conduit created, while 1 patient had a sigmoid colovesicostomy for urinary diversion. Five patients required bladder neck repair. One patient had stenosis of the Mitrofanoff and one patient had an anastomotic leak of the sigmoid anastomosis. The average operating time was 526 minutes (313-724 minutes). The median length of stay (LOS) was 5 days (4-7 days), excluding one outlier who suffered an anastomotic leak and had an extended LOS (50 days). All patients who underwent continent bladder reconstruction are dry on their current catheterizing regimen, 6/7 are clean with antegrade flushes. CONCLUSION: Patients with neurogenic bladder often have coexisting bowel dysfunction, which provides an opportunity to reconstruct both organ systems simultaneously and achieve social urinary and bowel continence. Before committing to any intervention, the surgeon should consider both the urologic and gastrointestinal needs of the patient, and perform the needed procedures simultaneously. We describe a number of combined operations aimed at bowel and bladder management that can be performed safely using robot-assisted laparoscopy.


Assuntos
Laparoscopia/métodos , Intestino Neurogênico/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Procedimentos Cirúrgicos Robóticos/métodos , Bexiga Urinaria Neurogênica/cirurgia , Criança , Pré-Escolar , Procedimentos Cirúrgicos do Sistema Digestório/efeitos adversos , Procedimentos Cirúrgicos do Sistema Digestório/métodos , Feminino , Humanos , Intestinos/cirurgia , Laparoscopia/efeitos adversos , Tempo de Internação/estatística & dados numéricos , Masculino , Intestino Neurogênico/complicações , Duração da Cirurgia , Procedimentos de Cirurgia Plástica/efeitos adversos , Estudos Retrospectivos , Procedimentos Cirúrgicos Robóticos/efeitos adversos , Bexiga Urinária/cirurgia , Bexiga Urinaria Neurogênica/complicações
6.
J Anesth ; 32(4): 637-640, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29808260

RESUMO

PURPOSE: Spinal anesthesia (SA) is being increasingly used in infants to avoid the potential negative neurocognitive effects of general anesthesia (GA). However, SA has been reported to provide a relatively short duration of surgical anesthesia. METHODS: We retrospectively reviewed SA cases for surgical procedures lasting more than 60 min in children up to 3 years old. All patients received bupivacaine 0.5% (1 mg/kg up to 7 mg) with clonidine 1 µg/kg ± epinephrine. The primary outcome was success of SA without subsequent conversion to GA. RESULTS: Thirty-five patients met inclusion criteria (all males, age 7 ± 5 months, weight 8 ± 2 kg). Procedures included male genital, groin and multiple site surgeries. Average surgical duration was 71 ± 12 min (range 60-111 min). SA was successful in 31 of 35 patients (89%; 95% confidence interval 78, 99%). The cause of failure was rarely due to the duration of surgery (1 of 4 patients). Six patients with successful SA required sedation with dexmedetomidine ± fentanyl. Differences in procedure duration and patient characteristics were not statistically significant between successful and failed SA. CONCLUSIONS: SA is a highly successful technique and may offer an alternative to GA in children undergoing appropriate surgery expected to last as long as 60-100 min.


Assuntos
Anestesia Geral/métodos , Raquianestesia/métodos , Bupivacaína/administração & dosagem , Clonidina/administração & dosagem , Peso Corporal , Dexmedetomidina/administração & dosagem , Fentanila/administração & dosagem , Humanos , Lactente , Masculino , Estudos Retrospectivos , Fatores de Tempo
7.
J Pediatr Surg ; 53(11): 2178-2182, 2018 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-29680275

RESUMO

BACKGROUND AND AIM: The sacral ratio (SR) is a well-established tool to quantify sacral development in patients with anorectal malformations (ARM) and can be used as a predictor of fecal continence. We hypothesized that a lower SR correlated with the presence of urologic and renal malformations. METHODS: We retrospectively reviewed the medical records of patients with ARM treated at our center from 2014 to 2016. We measured the lateral SR as a marker for sacral development and assessed the spine for the presence of tethered cord (TC). Urological and renal anomalies, including single kidney, hydronephrosis, hypospadias, vesicoureteral reflux (VUR), ectopic ureter, and penoscrotal transposition were assessed. Analysis of variance (ANOVA), t-tests, and multivariable linear regression were used to test for differences in SR with consideration of associated urologic malformations and tethered cord. RESULTS: 283 patients with ARM were included for analysis (156 females). The median age was 39months (10-90). Among these, 178 (55.6%) had 1 or more urologic malformations, and 81 (25.3%) had a TC. Hydronephrosis, high-grade VUR (3-5), solitary kidney, and tethered cord were significantly associated with lower SR (p<0.01). In multivariable regression models, the presence of urologic abnormalities remained significantly associated with lower a SR despite the presence or absence of TC (p<0.001). CONCLUSION: SR is a potentially useful indicator of certain urologic anomalies including hydronephrosis, high grade VUR, and solitary kidney in patients with ARM. This association is independent of the presence of TC. A sacral ratio as a part of the VACTERL screening can help the surgeon identify which patients need closer urologic follow up. LEVEL OF EVIDENCE: IV.


Assuntos
Malformações Anorretais , Sacro/anatomia & histologia , Anormalidades Urogenitais , Malformações Anorretais/complicações , Malformações Anorretais/epidemiologia , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Estudos Retrospectivos , Anormalidades Urogenitais/complicações , Anormalidades Urogenitais/epidemiologia
8.
J Pediatr Urol ; 14(2): 154.e1-154.e6, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-29317190

RESUMO

INTRODUCTION: Patients with gonadal dysgenesis (GD) with a Y chromosome have an increased risk of gonadal neoplasm. Few data exist on the ability of imaging to detect malignancy in intra-abdominal gonads in these patients. OBJECTIVE: We aimed to determine the correlation between preoperative imaging findings and gonadal pathology in GD patients with Y chromosome material. METHODS: A retrospective review was performed of patients with XY or XO/XY GD who underwent gonadectomy at our institution from 2003 to 2017. Patients were assessed preoperatively with ultrasonography; some additionally underwent MRI. RESULTS: The series consisted of 10 patients, all with female gender and non-palpable gonads. Median age was 13.1 years (range 2.4-18.3 years). Overall, four of the ten patients (40%) had a tumor (gonadoblastoma or dysgerminoma) on final pathology. Four patients had a gonad or gonads that were definitively seen on ultrasonography. All visualized gonads were described as "normal" or "small" with the exception of one patient, who had a normal MRI. Three of the four patients in this group had a tumor on final pathology. The remaining six patients had a gonad or gonads that were not definitively visualized on ultrasound; one patient in this group had a tumor on final pathology. Overall, five of seven gonads (71%) definitively visualized on ultrasound had tumor on final pathology, and two of thirteen gonads (15%) not visualized on ultrasound had tumor on final pathology; this difference was statistically significant (p = 0.012). Three patients were imaged with MRI. Of the gonads that could be visualized on MRI, no definitive abnormalities were seen. All patients imaged with MRI had tumors on final pathology. DISCUSSION: Both ultrasound and MRI are relatively poor at identifying and characterizing intra-abdominal gonads in GD patients. The majority of patients who had a neoplasm had normal imaging findings. Gonads that were definitively visualized on ultrasound were more likely to contain neoplasms that could not be visualized, which perhaps because of tumor growth. No other consistent imaging findings of malignancy were found. Our study included ultrasound evaluations that were completed over 10 years ago and not performed by pediatric ultrasonographers, which may have biased the results. However, results suggest that when discussing gonadectomy with GD patients, one should not be reassured by "normal" imaging findings. Neither ultrasound nor MRI should be relied on for surveillance in GD patients who decide against gonadectomy. CONCLUSION: A normal ultrasound or MRI does not rule out neoplasm in GD patients with intra-abdominal gonads.


Assuntos
Cromossomos Humanos Y/genética , Imageamento por Ressonância Magnética/métodos , Neoplasias de Tecido Gonadal/diagnóstico por imagem , Síndrome de Turner/diagnóstico por imagem , Ultrassonografia Doppler/métodos , Adolescente , Castração/métodos , Criança , Pré-Escolar , Estudos de Coortes , Disgerminoma/etiologia , Disgerminoma/fisiopatologia , Feminino , Disgenesia Gonadal/diagnóstico por imagem , Disgenesia Gonadal/cirurgia , Gonadoblastoma/etiologia , Gonadoblastoma/fisiopatologia , Humanos , Neoplasias de Tecido Gonadal/cirurgia , Cuidados Pré-Operatórios/métodos , Valores de Referência , Estudos Retrospectivos , Medição de Risco , Sensibilidade e Especificidade , Síndrome de Turner/cirurgia
9.
Urology ; 111: 186-188, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-29030072

RESUMO

Obtaining retrograde access into a ureter that has been previously reimplanted in a cross-trigonal fashion can be a challenging procedure. We describe a percutaneous vesicoscopic approach to obtain access into a reimplanted ureter to perform ureteroscopy and laser lithotripsy.


Assuntos
Cistoscopia , Cálculos Renais/cirurgia , Reimplante/métodos , Ureter/cirurgia , Ureteroscopia/métodos , Adolescente , Cistoscopia/métodos , Humanos , Masculino , Procedimentos Cirúrgicos Urológicos Masculinos/métodos
10.
J Pediatr Urol ; 13(4): 396-400, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28818338

RESUMO

BACKGROUND: Spinal anesthesia (SA) is an effective technique that has been used in children for years. With growing concern with regard to the risks of general anesthesia (GA), we developed a SA program to provide an alternative option. We present our initial experience with this program. OBJECTIVE: To implement a SA program at a large tertiary care pediatric center and assess the safety and efficacy of the technique as an alternative to GA for urologic surgery. STUDY DESIGN/METHODS: We prospectively collected data on all children undergoing SA at our institution. We recorded demographics, procedure, time required for placement of the SA, length of surgery, success of lumbar puncture, success of attaining adequate surgical anesthesia, need for supplemental systemic sedation, conversion to GA, and perioperative complications. RESULTS: SA was attempted in 105 consecutive children (104 boys, 1 girl) with a mean age of 7.4 ± 4.3 months (range 19 days-24 months) and mean weight of 8.3 ± 1.7 kg (range 3.5-13.7). Placement of the SA was successful in 93/105 children (89%). Inability to achieve lumbar puncture (cerebrospinal fluid was not obtained) meant that SA was abandoned in seven (7%) patients and GA was administered. In five patients in whom SA was successful and surgery was begun, 5/93 (5%) required conversion to GA: two because of evisceration of intestine through large hernia defects related to coughing and abdominal irritation, two because of lack of motor blockade despite an adequate sensory block, and one because of an inability to place an intravenous catheter in the lower extremities (required per SA protocol). If necessary, an intravenous catheter can be placed in the upper extremity, but this must be weighed against the fact that the block has already been placed and is of limited duration. Overall, SA was successful (SA was placed and surgery was completed without conversion to GA) in 88/105 children (84%). No additional sedation and no systemic anesthetic agents were required in 75/88 children (85%). The average time required to place the SA was 3.8 ± 2.7 min (range 1-12). The average time for the surgical procedure was 38.3 ± 23.1 min (range 10-122). No patient required conversion to GA because of recession of block. There were no surgical complications. DISCUSSION/CONCLUSIONS: SA is a safe and efficacious technique for routine pediatric urological procedures. SA should be considered for cases such as neonatal torsion or patients with significant cardiac or pulmonary comorbidities when the risks of GA are often weighed against the risks of non-intervention.


Assuntos
Anestesia Geral , Raquianestesia , Complicações Pós-Operatórias/epidemiologia , Procedimentos Cirúrgicos Urológicos , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Duração da Cirurgia , Estudos Retrospectivos
11.
J Pediatr Surg ; 51(11): 1864-1870, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27554917

RESUMO

INTRODUCTION: A significant number of internationally adopted children have congenital birth defects. As a specialist center for colorectal diagnoses, we evaluate such children with an anorectal malformation (ARM) and have found that a significant number need a reoperation. Knowledge of the common complications following ARM surgery has led us to develop treatment algorithms for patients with unknown past medical and surgical history, a situation typically encountered in the adopted population. METHODS: The results of investigations, indications, and rate of reoperation were assessed for adopted children with an ARM evaluated between 2014 and 2016. RESULTS: 56 patients (28 males) were identified. 76.8% required reoperative surgery. Mislocation of the anus outside the sphincter complex was seen in 50% of males and 39.3% of females. Anal stricture, rectal prolapse, retained vaginal septum, and a strictured vaginal introitus were also common. CONCLUSION: The reoperative surgery rate in the internationally adopted child with an ARM is high. Complete, systematic evaluation of these children is required to identify complications following initial repair. Development of mechanisms to improve the primary surgical care these children receive is needed.


Assuntos
Anormalidades Múltiplas , Adoção , Canal Anal/cirurgia , Malformações Anorretais/cirurgia , Diagnóstico por Imagem/métodos , Procedimentos Cirúrgicos do Sistema Digestório/métodos , Gerenciamento Clínico , Reto/cirurgia , Canal Anal/anormalidades , Malformações Anorretais/diagnóstico , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Reto/anormalidades , Reoperação/estatística & dados numéricos
12.
J Bacteriol ; 198(6): 964-72, 2016 Jan 11.
Artigo em Inglês | MEDLINE | ID: mdl-26755631

RESUMO

UNLABELLED: Urinary tract infection (UTI) is one of the most common ailments requiring both short-term and prophylactic antibiotic therapies. Progression of infection from the bladder to the kidney is associated with more severe clinical symptoms (e.g., fever and vomiting) as well as with dangerous disease sequelae (e.g., renal scaring and sepsis). Host-pathogen interactions that promote bacterial ascent to the kidney are not completely understood. Prior studies indicate that the magnitude of proinflammatory cytokine elicitation in vitro by clinical isolates of uropathogenic Escherichia coli (UPEC) inversely correlates with the severity of clinical disease. Therefore, we hypothesize that the magnitude of initial proinflammatory responses during infection defines the course and severity of disease. Clinical UPEC isolates obtained from patients with a nonfebrile UTI elicited high systemic proinflammatory responses early during experimental UTI in a murine model and were attenuated in bladder and kidney persistence. Conversely, UPEC isolates obtained from patients with febrile UTI elicited low systemic proinflammatory responses early during experimental UTI and exhibited prolonged persistence in the bladder and kidney. Soluble factors in the supernatant from saturated cultures as well as the lipopolysaccharide (LPS) serotype correlated with the magnitude of proinflammatory responses in vitro. Our data suggest that the structure of the O-antigen sugar moiety of the LPS may determine the strength of cytokine induction by epithelial cells. Moreover, the course and severity of disease appear to be the consequence of the magnitude of initial cytokines produced by the bladder epithelium during infection. IMPORTANCE: The specific host-pathogen interactions that determine the extent and course of disease are not completely understood. Our studies demonstrate that modest changes in the magnitude of cytokine production observed using in vitro models of infection translate into significant ramifications for bacterial persistence and disease severity. While many studies have demonstrated that modifications of the LPS lipid A moiety modulate the extent of Toll-like receptor 4 (TLR4) activation, our studies implicate the O-antigen sugar moiety as another potential rheostat for the modulation of proinflammatory cytokine production.


Assuntos
Citocinas/metabolismo , Antígenos O/imunologia , Sorogrupo , Infecções Urinárias/imunologia , Infecções Urinárias/microbiologia , Escherichia coli Uropatogênica/classificação , Escherichia coli Uropatogênica/imunologia , Animais , Células Cultivadas , Modelos Animais de Doenças , Células Epiteliais/imunologia , Células Epiteliais/microbiologia , Humanos , Camundongos , Antígenos O/classificação , Sistema Urinário/imunologia , Sistema Urinário/microbiologia , Sistema Urinário/patologia , Infecções Urinárias/patologia , Escherichia coli Uropatogênica/isolamento & purificação , Escherichia coli Uropatogênica/patogenicidade
13.
J Endourol ; 30(1): 28-31, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26414593

RESUMO

BACKGROUND AND PURPOSE: Pediatric patients with urolithiasis and complex reconstructed genitourinary anatomy pose a significant surgical challenge. We describe a technique utilized to treat an obstructing calculus in the ectopic kidney of a patient with a history of cloacal exstrophy, bladder augmentation, Monti catheterizable channel, and reconstructed abdominal wall. Case and Technique: A 5-year-old female with a history of cloacal exstrophy, pelvic kidney, and reconstructed urologic and abdominal wall anatomy presented after prior shockwave lithotripsy with an obstructing ureteropelvic junction calculus with signs of sepsis. Because of the patient's previous abdominal wall reconstruction with polytetrafluoroethylene mesh and the location of her pelvic kidney, traditional methods of percutaneous nephrostomy tube placement could not be performed. Transgluteal percutaneous nephrostomy tube was placed by interventional radiology. Subsequently, a percutaneous nephrolithotomy (PCNL) was performed through this tract. CONCLUSIONS: Transgluteal PCNL is a feasible option in children with complex congenital genitourinary anomalies with a history of reconstructed anatomy.


Assuntos
Cálculos Renais/cirurgia , Pelve Renal/cirurgia , Rim/cirurgia , Nefrostomia Percutânea/métodos , Ultrassonografia de Intervenção , Cálculos Ureterais/cirurgia , Obstrução Ureteral/cirurgia , Parede Abdominal/cirurgia , Extrofia Vesical/complicações , Extrofia Vesical/cirurgia , Pré-Escolar , Feminino , Hérnia Umbilical/complicações , Hérnia Umbilical/cirurgia , Humanos , Ileostomia , Rim/anormalidades , Cálculos Renais/complicações , Cálculos Renais/diagnóstico por imagem , Pelve Renal/diagnóstico por imagem , Litotripsia , Cirurgia Assistida por Computador , Cálculos Ureterais/complicações , Obstrução Ureteral/complicações , Anormalidades Urogenitais/complicações , Anormalidades Urogenitais/cirurgia , Procedimentos Cirúrgicos Urológicos
14.
J Pediatr Orthop ; 36(8): 860-864, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26090968

RESUMO

BACKGROUND: Exstrophy of the bladder is a rare congenital defect seen in 2.15 children out of every 100,000 live births, with the most severe variant, cloacal exstrophy (CE), only occurring in 1 in 200,000. Developmental dysplasia of the hip (DDH) describes a spectrum of disease ranging from mild hip instability to frank dislocation. Underlying malformations, such as myelomeningocele and arthrogryposis, are often associated with the most severe variant of hip dysplasia, teratologic hip dislocation. The varying degrees of severity in DDH have been encountered in classic bladder exstrophy (CBE) patients, but the exact incidence is unknown. We sought to determine the incidence of DDH in CBE and CE patients. METHODS: We performed a retrospective review of all children with CBE or CE presenting to a single pediatric center between 1994 and 2014. Each chart was reviewed for correct diagnosis of CBE or CE, patient age and demographics, associated medical conditions, pertinent surgeries performed, and the age at operation. Patient imaging was reviewed to determine whether bilateral hip imaging was available. RESULTS: In a 20-year retrospective review, we identified 66 patients who were diagnosed with either CBE or CE and had available hip imaging (38 males and 28 females). Of these, 11 patients were found to have radiographic evidence of DDH, for an incidence of 16.7% (11/66). Five of these patients had CE, whereas 6 presented with CBE. The first radiographic evidence of DDH was noted at a mean age of 5.75 years (range, birth to 22 y). CONCLUSIONS: We advocate the use of routine hip screening ultrasound in all infants born with either CBE or CE. Early identification of DDH in these patients may allow additional treatment options to coincide with frequently used osteotomy and orthopaedic interventions. LEVEL OF EVIDENCE: Level III-retrospective study.


Assuntos
Extrofia Vesical/complicações , Luxação do Quadril/epidemiologia , Adolescente , Extrofia Vesical/diagnóstico , Criança , Pré-Escolar , Feminino , Luxação do Quadril/etiologia , Luxação do Quadril/cirurgia , Humanos , Incidência , Lactente , Recém-Nascido , Masculino , Osteotomia/métodos , Radiografia , Estudos Retrospectivos , Ultrassonografia , Estados Unidos/epidemiologia
15.
Urol Clin North Am ; 42(1): 53-9, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25455172

RESUMO

Vesicoscopic ureteral reimplantation is a challenging procedure to learn but does have outcomes equivalent to standard open repair. Children objectively have less pain than after an open cross-trigonal repair. Operative times compare favorably to other forms of minimally invasive surgery.


Assuntos
Laparoscopia/métodos , Reimplante/métodos , Procedimentos Cirúrgicos Robóticos/métodos , Ureter/cirurgia , Refluxo Vesicoureteral/cirurgia , Criança , Pré-Escolar , Cistoscopia/métodos , Feminino , Seguimentos , Humanos , Laparoscopia/efeitos adversos , Masculino , Procedimentos Cirúrgicos Minimamente Invasivos/efeitos adversos , Procedimentos Cirúrgicos Minimamente Invasivos/métodos , Duração da Cirurgia , Complicações Pós-Operatórias/fisiopatologia , Resultado do Tratamento , Refluxo Vesicoureteral/diagnóstico
16.
J Pediatr Surg ; 48(5): 1118-22, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-23701791

RESUMO

Vaginal tumors in children are uncommon. This report describes the rare case of an atypical smooth muscle tumor arising from the vagina in a pediatric patient managed with tumor resection, vaginal reconstruction, and continent urinary diversion. We also discuss a review of the literature and a brief report detailing our experience with pediatric vaginal tumors.


Assuntos
Procedimentos Cirúrgicos em Ginecologia/métodos , Leiomioma/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Derivação Urinária/métodos , Neoplasias Vaginais/cirurgia , Dor Abdominal/etiologia , Adolescente , Anemia/etiologia , Anemia/terapia , Transfusão de Sangue , Cicatriz/etiologia , Circuncisão Feminina/efeitos adversos , Colo Sigmoide/cirurgia , Cistectomia , Feminino , Hemorragia/etiologia , Humanos , Leiomioma/diagnóstico , Leiomioma/patologia , Complicações Pós-Operatórias , Progesterona/uso terapêutico , Infecção da Ferida Cirúrgica , Neoplasias Vaginais/diagnóstico , Neoplasias Vaginais/patologia
17.
Urology ; 80(6): 1351-5, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23206783

RESUMO

OBJECTIVES: To determine if voiding cystourethrogram (VCUG) following first episode of urinary tract infection (UTI) offers any incremental diagnostic advantage in boys if a comprehensive renal and bladder ultrasonogram (RBUS) revealed no abnormalities. METHODS: All boys less than 10 years of age whose first evaluation for UTI included RBUS and VCUG were retrospectively studied over a 10-year period. Those with a disorder of the urinary tract known before imaging were excluded. RBUS and VCUG results were analyzed. RESULTS: Of the 77 who met the inclusion criteria, 58 (77%) were <1 year old. 45 (58%) boys had normal RBUS and VCUG. In 16 (21%) both studies were abnormal: 15 had vesicoureteral reflux (VUR) and one had posterior urethral valves. The remaining 16 (21%) had one abnormal study: 10 had pelvicaliectasis on RBUS without VUR; 6 had normal RBUS with VUR. No urethral abnormality was diagnosed on VCUG when RBUS was normal. Of the six who had VUR and normal RBUS, the one who required surgical intervention had recurrent febrile UTI. CONCLUSIONS: If a well-performed RBUS is normal in a boy with first UTI, the likelihood of a significant finding in VCUG is low. A VCUG is likewise of no apparent screening benefit for obstructive uropathy. With the uncertainties surrounding the benefit of chemoprophylaxis, omitting a VCUG when a RBUS is normal in boys with a first UTI avoids the morbidity without missing important pathologies or altering evolving management protocols.


Assuntos
Rim/diagnóstico por imagem , Bexiga Urinária/diagnóstico por imagem , Infecções Urinárias/diagnóstico por imagem , Criança , Humanos , Masculino , Estudos Retrospectivos , Ultrassonografia , Uretra/diagnóstico por imagem , Micção , Urografia/métodos , Urografia/estatística & dados numéricos
18.
J Urol ; 187(3): 1024-31, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22264452

RESUMO

PURPOSE: Surgical management of the high urogenital sinus remains challenging. The anterior sagittal transrectal approach provides optimal exposure, facilitates vaginal dissection and separation from the urethra, and allows reconstruction of the bladder neck musculature. In this study we report our initial experience with this technique. MATERIALS AND METHODS: We performed a retrospective review of a 6-year multi-institutional experience treating patients with a urogenital sinus anomaly using the anterior sagittal transrectal approach without preoperative colostomy or prolonged postoperative fasting. Variables analyzed included patient age, associated malformations, the need for additional procedures and surgical outcomes. RESULTS: A total of 23 children with a mean age of 2.3 years (range 3 months to 17 years) who underwent surgery between 2003 and 2010 were included in the study. Mean followup was 3.4 years (range 14 months to 7 years). All children had a high urogenital sinus with (16) or without (7) congenital adrenal hyperplasia. There were 3 isolated cases treated with additional procedures. Only 1 anterior sagittal transrectal approach related complication was encountered when a perineal infection developed in a child and required temporary diverting colostomy without compromising the repair. There were no postoperative urethrovaginal fistulas. All toilet trained patients were continent for feces and most were voiding normally per urethra (21), except for 2 with associated urological malformations. There were 15 patients who underwent followup examination under anesthesia, and demonstrated separate urethral and vaginal openings. CONCLUSIONS: The anterior sagittal transrectal approach provides excellent exposure for the management of a high urogenital sinus, facilitating the separation of urogenital structures. Good outcomes in terms of urinary/fecal continence as well as the absence of urethrovaginal fistulas were achieved in the majority of cases, supporting its consideration for the surgical management of this congenital abnormality.


Assuntos
Transtornos do Desenvolvimento Sexual/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Procedimentos Cirúrgicos Urológicos/métodos , Adolescente , Hiperplasia Suprarrenal Congênita/cirurgia , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Reto , Estudos Retrospectivos , Resultado do Tratamento
19.
J Pediatr Urol ; 7(5): 529-33, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-20869918

RESUMO

OBJECTIVE: We report our initial experience, and describe our technique, in performing laparoscopic ipsilateral ureteroureterostomy (IUU) in the pediatric population. MATERIALS AND METHODS: An IRB-approved, retrospective review of all patients undergoing laparoscopic IUU at our institution between 2006 and 2009 was performed. Demographic data, mode of presentation, underlying diagnosis, operative parameters, complications and follow-up data were analyzed. Cystoscopy, retrograde pyelograms and ureteral stent placement into the lower pole ureter were performed at the beginning of all cases. All were performed via a transperitoneal approach. An end-to-side ureteral anastamosis was carried out along the proximal lower pole ureter. No drains were left in place. Urethral catheters were left for 48 h. RESULTS: There were seven patients in the series. All were female with a mean age of 84 months (11190). Diagnosis was an ectopic ureter in six patients and a ureterocele in one patient. No patient required conversion to an open approach. Mean total operative time was 187 min (140252). Mean hospital stay was 2 days (14) with a mean follow up of 8 months (115). No complications occurred postoperatively. Follow-up studies demonstrate decreased or resolved hydronephrosis in all cases. CONCLUSIONS: In our initial experience, laparoscopic IUU can be accomplished in a safe and effective manner with minimal complication.


Assuntos
Laparoscopia/métodos , Ureter/anormalidades , Doenças Ureterais/cirurgia , Ureterostomia/métodos , Pré-Escolar , Feminino , Seguimentos , Humanos , Lactente , Estudos Retrospectivos , Resultado do Tratamento , Ureter/cirurgia , Doenças Ureterais/congênito , Doenças Ureterais/fisiopatologia , Urodinâmica
20.
Pediatr Radiol ; 39(11): 1227-9, 2009 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-19795115

RESUMO

Urethral duplication is an uncommon clinical finding, and classification systems have been described to explain the clinical findings. Urethral triplication is an extremely uncommon diagnosis, with few published case reports. We present the rare case of an infant noted to have a bifid urinary stream and found to have urethral triplication on voiding cystourethrography.


Assuntos
Anormalidades Múltiplas/diagnóstico por imagem , Pênis/anormalidades , Pênis/diagnóstico por imagem , Uretra/anormalidades , Uretra/diagnóstico por imagem , Humanos , Lactente , Masculino , Radiografia
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