Lower Urinary Tract Dysfunction in Pediatric Patients with Multiple Sclerosis: Diagnostic and Management Concerns

BACKGROUND

Multiple sclerosis (MS) is increasing in the pediatric population and, as in adults, symptoms vary among patients. In children the first manifestations can sometimes overlap with acute neurological symptoms. Urological symptoms have not been much studied in childhood. We shared our experience with MS urological manifestation in children.

METHODS

This article is a retrospective evaluation of all children with MS, according to the Krupp criteria, who also present with urological symptoms. We collected demographic and clinical history, the MR localization of demyelinating lesions, urological symptoms, and exams.

RESULTS

We report on six MS pediatric cases with urological manifestation. Urinary symptoms, characterized by urinary incontinence in five patients and urinary retention in one patient, appeared in a different time frame from MS diagnosis. Urodynamic exams showed both overactive and underactive bladder patterns. Treatment was defined according to lower urinary tract dysfunction, using clean intermittent catheterization, oxybutynin, and intradetrusor Onabotulinum Toxin-A injection. A low acceptance rate of invasive evaluation and urological management was observed.

CONCLUSIONS

The MS diagnosis was traumatic for all our patients. We believe it is important to address urological care in young people from the time of diagnosis for prompt management; it could be useful to include a pediatric urologist in multidisciplinary teams.

Megacystis-microcolon-intestinal hypoperistalsis syndrome: don't forget the bladder

PURPOSE

Megacystis-microcolon-intestinal hypoperistalsis syndrome (MMIHS) is a well described clinical condition, but reports are focused on microcolon and intestinal hypoperistalsis, while data on bladder management are scant. Aim of the study is to present urological concerns in MMIHS.

METHODS

Retrospective evaluation of clinical data on urological management of MMIHS patients treated in the last 10 years.

RESULTS

Six patients were enrolled (3 male, 3 female). Three girls had prenatal diagnosis of megacystis (1 vesicoamniotic shunt was placed). All patients had genetic diagnosis: 5 had ACTG2 gene mutations and 1 MYH11 mutation. All patients were addressed to our attention for urinary symptoms, such as urinary retention, urinary tract infections, acute renal injury. Two patients presented frequent stoma prolapses. All children underwent a complete urological evaluation, and then started a bladder management protocol (clean intermittent catheterization, via urethra or cystostomy-tube placement), with improvement of urinary infections, upper urinary tract dilation and stoma prolapses, if present. All patients had good renal function at last follow-up.

CONCLUSION

We believe that MMIHS patients must be addressed soon and before onset of symptoms for a multidisciplinary evaluation, including an early assessment by a pediatric urologist expert in functional disorder, to preserve renal function at its best.

Thulium Laser for the Treatment of Posterior Urethral Valves in Infants

Objective: Thulium laser (ThL) has become popular in urology, because of its powerful action on tissue, achieving optimal ablation and hemostasis. Aim of our article was to evaluate efficacy of ThL in infants affected by posterior urethral valve (PUV) ablation. Patients and Methods: Clinical charts of 25 infants (age ≤12 months) who underwent PUV ablation were retrospectively reviewed. According to our protocol, all patients performed voiding cystourethrography and cystoscopy 6 to 8 months after initial treatment. Several factors, including age and weight at surgery, operative time, postoperative bleeding, catheterization period, postoperative urinary retention, retreatment for valve remnants, and stricture at follow-up, were evaluated. Preoperative, intraoperative, and postoperative data were analyzed. Results: Mean age at primary surgery was 4.5 months (5 days-10.5 months) and mean weight at primary surgery was 5.7 kg (2.5-10.3 kg). Mean operative time was 29.5 minutes (range 15-50 minutes). None of the patients experienced intraoperative and postoperative bleeding. In all cases, postoperative catheterization period was 1 day. Residual valves were found in 6 of 25 (24%) patients. No cases of urethral stricture were registered during follow-up (48.4 months, range: 11-95). Analyzing literature data using other techniques, complication rate of ThL PUV ablation seems lower than standard treatments (electrofulguration, cold knife) and comparable with those reported with other laser techniques. Conclusion: PUV ablation with ThL has proven to be feasible and safe in infants. Further studies are needed to define the real effectiveness of this laser technology in PUV ablation. Miniaturized instruments and ThL technology make early PUV treatment feasible also in low body weight newborns.

Long-term urological outcome of cloaca patients with multidisciplinary management

PURPOSE

Urological management of Cloacal Malformation (CM) focuses on preserving renal function and continence. Study aim was to analyze urinary and intestinal outcomes in CM patients, considering the length of common channel (CC) and presence of occult spinal dysraphism (OSD).

METHODS

Retrospective review of CM treated at our institution by a multidisciplinary team from 1999 to 2020. Patients with follow-up < 2.5 years were excluded. Length of CC, renal function, urinary and bowel outcomes, presence of associated anomalies (especially OSD) were evaluated.

RESULTS

Twenty patients were included, median age at follow-up: 8 years (4-15). A long CC > 3 cm was described in 11 (55%). Chronic kidney disease was found in 3 patients. Urinary continence was achieved in 8/20 patients, dryness (with intermittent catheterization) in 9/20. Fecal continence was obtained in 3/20, cleanliness in 14 (under bowel regimen). OSD was present in 10 patients (higher prevalence in long-CC, 73%). Among OSD, 1 patient reached fecal continence, 7 were clean; 2 achieved urinary continence, while 6 were dry.

CONCLUSIONS

Length of CC and OSD may affect urinary and fecal continence. An early counseling can improve outcome at long-term follow-up. Multidisciplinary management with patient centralization in high grade institutions is recommended to achieve better results.

Hypospadias management in children with anorectal malformation: a multidisciplinary single center experience

Anorectal malformation (ARM) is often associated to other congenital malformations, requiring a tailored management. Hypospadias' treatment in ARM is poorly described. Aim of study is to describe our experience in ARM-hypospadias patients especially in relation to occult spinal dysraphism (OSD). ARM patients treated from 1999 to 2022 were retrospectively reviewed, selecting male with hypospadias. Clinical data, hypospadias's severity, ARM sub-type (Group A: perineal fistula; Group B: urethral fistula, bladder fistula, no fistula), OSD, other associated malformations, NLUTD were evaluated. Exclusion criteria: uncomplete data. Among 395 ARMs, 222 were males, 22 (10%) had hypospadias. Two patients were excluded. Group A: 8 patients, Group-B: 12. Hypospadias: proximal 9 patients, distal 11. Neuro-urological evaluation was performed before hypospadias repair. Eleven patients (55%) had OSD. Four OSD patients presented NLUTD and underwent detethering and CIC (two via cystostomy button, two via appendicostomy); two of them had hypospadias repaired. All proximal hypospadias underwent two stages of surgery. Distal hypospadias was corrected in 4/11 cases. Hypospadias is quite common in ARM patients and its surgical management must be scheduled considering the possible OSD and NLUTD, with the possible need for intermittent catheterization. Complexity of ARM and hypospadias appears to be related to each other.

Onabotulinum Toxin A Intradetrusor Injections in Children with Neurogenic Lower Urinary Tract Dysfunction: Long-Term Histological Effects on the Bladder Wall

BACKGROUND

In the last twenty-five years, Onabotulinum Toxin A (BTX-A) has gained increasing popularity for neurogenic lower urinary tract dysfunction (NLUTD) treatment. To maintain its efficacy, repeated BTX-A intradetrusor injections are required over time, with unknown effects on the bladder wall in children. The aim of this paper is to report long-term effects on the bladder wall in children treated with BTX-A.

METHODS

Children with NLUTD not responsive to anticholinergics were treated with BTX-A, according to our protocol, with bladder wall control using endoscopic cold-cup biopsy. Specimens were evaluated considering edema, chronic inflammation, and fibrosis.

RESULTS

Of the 230 patients treated from 1997 to 2022, we considered only specimens obtained in patients who had received ≥5 treatments (36 children), considered as the threshold to evaluate clinical effectiveness on long-term treatment with BTX-A. Most of them had congenital NLUTD (25 patients) and detrusor overactivity (27 patients). In all, increased edema and chronic inflammation with reduced fibrosis over time was reported; these data were not statistically significant. No difference was observed between patients with congenital and acquired diseases.

CONCLUSIONS

Repeated intradetrusor BTX-A injections are not related to significant histological alterations in children, similarly with adults, and repeated injections could be considered safe.

Home pelvic floor exercises in children with non-neurogenic Lower Urinary Tract Symptoms: Is fitball an alternative to classic exercises?

INTRODUCTION

Biofeedback with home pelvic floor exercises were recommended as non-pharmacologic treatment for non-neurogenic Lower Urinary Tract Symptoms (LUTS) in children. Fitball is recommended to improve all-over flexibility, balance, and coordination, especially for pelvic floor. Aim of the study was to investigate efficacy of standard home pelvic floor exercises versus exercises using fitball.

METHODS

From April 2021 to February 2022 to all children arrived in our clinic with non-neurogenic LUTS nonresponder at urotherapy, our pelvic floor rehabilitative program was proposed. During the rehabilitation children performed: standard urotherapy, pelvic floor animated biofeedback therapy and pelvic floor exercises in a standard way and using a fitball. After the first session, patients received prescription to repeat at home the same exercises performed at hospital. Children who chose classic exercises were enrolled in group A and they who chose fitball in group B. Continence rate, pelvic floor muscles activity, adherence and satisfaction were evaluated by means of bladder diary, external pubococcygeus test and Likert-type psychometric scale (from 1 = very unsatisfied to 5 = very satisfied) respectively.

RESULTS

Twenty-six children affected by LUTS were enrolled: 13 in group A and 13 in B. At 4th control urinary incontinence was reduced by 72,5% in A and 71.4% in B. Pubococcygeus test increased in both groups. Adherence at home was 92% in group A and 62% in group B. Satisfaction with the treatment (4 or 5 points) was 95% in both groups. Four patients of group A and all of group B decided to maintain home exercises including fitball.

CONCLUSIONS

Our preliminary study shows that efficacy of home exercises, with or without fitball, is comparable. Satisfaction with fitball is high, regardless results obtained, because parents and children have learned a new, interesting and stimulating way to manage urinary problems. The opportunity to perform these exercises using fitball, it's an important finding for pediatric population.

Development of a Bowel Management Scoring Tool in Pediatric Patients with Constipation

OBJECTIVE

To develop a reliable and valid scoring tool, the Pediatric Bowel Management Scoring Tool (PBMST), to better guide management of constipation in pediatric patients.

STUDY DESIGN

The project comprised 2 stages, development of the questionnaire and construction of the bowel management score. Two questionnaires were created, one for children aged 8-18 years to self-report and one parent proxy-report for children aged 4-8 years. Questions regarding physical symptoms (n = 6), emotional aspects (n = 2), social activities/school (n = 1), and treatment (n = 1) were included. Patients (or parents of patients) with symptoms of constipation completed the questionnaire. The reproducibility of each question was computed using the Cohen weighted kappa coefficient (κ). A bowel management score was developed using logistic regression analysis, assessing the associations between the questions and impact on self-reported quality of life (QoL). Questions with adequate reproducibility and significantly associated with QoL were incorporated into the score.

RESULTS

The questionnaire was completed by 385 patients. Six questions met the inclusion criteria and were incorporated into the score: stool shape (range, 0-3 points), anorectal pain (0-4 points), abdominal pain (0-3 points), frequency of fecal incontinence (0-3 points), assistance of caregivers (0-3 points), and interference with social activities (0-6 points). Differences in bowel management scores among patients reporting no, little, some, or major impact on QoL were statistically significant (P < .001).

CONCLUSIONS

The newly developed and validated PBMST is a reliable tool for evaluating bowel management strategies in children with constipation.

Definition, diagnosis and management of fetal lower urinary tract obstruction: consensus of the ERKNet CAKUT-Obstructive Uropathy Work Group

Fetal lower urinary tract obstruction (LUTO) is associated with high mortality and postnatal morbidity caused by lung hypoplasia and impaired kidney function. Specific diagnostic features that can guide clinical approach and decisions are lacking; thus, the European Reference Network for Rare Kidney Diseases established a work group to develop recommendations regarding the clinical definition, diagnosis and management of prenatally detected LUTO. The work group recommends the use of antero-posterior diameter of renal pelvis as the most reliable parameter for suspecting obstructive uropathies and for suspecting prenatal LUTO in the presence of fetal megacystis. Regarding prenatal and postnatal prognosis of fetuses with LUTO, the risk of fetal and neonatal death depends on the presence of oligohydramnios or anhydramnios before 20 weeks' gestation, whereas the risk of kidney replacement therapy cannot be reliably foreseen before birth. Parents of fetuses with LUTO must be referred to a tertiary obstetric centre with multidisciplinary expertise in prenatal and postnatal management of obstructive uropathies, and vesico-amniotic shunt placement should be offered in selected instances, as it increases perinatal survival of fetuses with LUTO.

Posterior urethral valves: Role of prenatal diagnosis and long-term management of bladder function; a single center point of view and review of literature

Posterior Urethral Valves (PUV) are the most common cause of lower urinary tract obstruction. More severe forms are detected early in pregnancy (mainly type I), while other forms are usually discovered later in childhood when investigating lower urinary tract symptoms. Bladder dysfunction is common and is associated with urinary incontinence in about 55% (0%-72%). Despite the removal of the obstruction by urethral valve ablation, pathological changes of the urinary tract can occur with progressive bladder dysfunction, which can cause deterioration of the upper urinary tract as well. For this reason, all children with PUV require long-term follow-up, always until puberty, and in many cases life-long. Therefore, management of PUV is not only limited to obstruction relief, but prevention and treatment of bladder dysfunction, based on urodynamic observations, is paramount. During time, urodynamic patterns may change from detrusor overactivity to decreased compliance/small capacity bladder, to myogenic failure (valve bladder). In the past, an aggressive surgical approach was performed in all patients, and valve resection was considered an emergency procedure. With the development of fetal surgery, vesico-amniotic shunting has been performed as well. Due to improvements of prenatal ultrasound, the presence of PUV is usually already suspected during pregnancy, and subsequent treatment should be performed in high-volume centers, with a multidisciplinary, more conservative approach. This is considered to be more effective and safer. Primary valve ablation is performed after clinical stability and is no longer considered an emergency procedure after birth. During childhood, a multidisciplinary approach (pediatric urologist, nephrologist, urotherapist) is recommended as well in all patients, to improve toilet training, using an advanced urotherapy program with medical treatments and urodynamic evaluations. The aim of this paper is to present our single center experience over 30 years.

Predictive value of spinal bone anomalies for spinal cord abnormalities in patients with anorectal malformations

AIM

To evaluate the correlation between sacral/vertebral anomalies and spinal cord anomalies (SCA) on MRI, in patients with anorectal malformation (ARM).

METHODS

Patients with ARM consecutively treated between January 1999 and August 2019 were included. Radiological imaging of sacrum and spine were retrospectively analyzed and correlated to the presence of SCA at MRI. Fisher's exact test and X² test were used as appropriate; p<0.05 was considered statistically significant.

RESULTS

348 patients with ARM were enrolled in the study, 147 presented SCA at MRI. 144 patients showed spinal bone anomalies, isolated vertebral and sacral anomalies were found in 17,6% and 35% respectively. Higher level of ARM was associated with a significant higher prevalence of sacral and vertebral anomalies. A significant correlation was found between the "level" of ARM and the presence of SCA (p<0.05). Sacral anomalies were significantly correlated with the presence of SCA at MRI (p<0.05). SCA were found in 70% of patients with vertebral anomalies (VA) and in 76% of patients with sacral anomalies. The presence of multiple malformations (vertebral and sacral anomalies) are strictly related to the presence of SCA. However, the absence of spinal bone anomalies does not exclude the presence of SCA. SD was the most represented type of SCA (n=94/147), of those 96% had fatty filum. Neurological or neurourological symptoms were detected in 11,5% patients (n=17) with SCA and required neurosurgical intervention.

CONCLUSIONS

Our data confirm the strong relation between sacral or vertebral anomalies and SCA. However, in our series also patients without sacral/vertebral anomalies had SCA at MRI. Our results suggest that, despite the presence or absence of spinal anomalies, spinal cord MRI should be performed in all children with ARM, to allow a correct multidisciplinary follow-up and treatment. In fact, most patients with spinal bone and SCA are asymptomatic, but could develop clinical manifestations during their growth.

Neurogenic Bowel Dysfunction in Children and Adolescents

Neurogenic/neuropathic bowel dysfunction (NBD) is common in children who are affected by congenital and acquired neurological disease, and negatively impacts quality of life. In the past, NBD received less attention than neurogenic bladder, generally being considered only in spina bifida (the most common cause of pediatric NBD). Many methods of conservative and medical management of NBD are reported, including relatively recently Transanal Irrigation (TAI). Based on the literature and personal experience, an expert group (pediatric urologists/surgeons/gastroenterologists with specific experience in NBD) focused on NBD in children and adolescents. A statement document was created using a modified Delphi method. The range of causes of pediatric NBD are discussed in this paper. The various therapeutic approaches are presented to improve clinical management. The population of children and adolescents with NBD is increasing, due both to the higher survival rate and better diagnosis. While NBD is relatively predictable in producing either constipation or fecal incontinence, or both, its various effects on each patient will depend on a wide range of underlying causes and accompanying comorbidities. For this reason, management of NBD should be tailored individually with a combined multidisciplinary therapy appropriate for the status of the affected child and caregivers.

Should we routinely assess psychological morbidities in idiopathic lower urinary tract dysfunction: ICI-RS 2019?

AIMS

Psychological morbidities play a major role in idiopathic lower urinary tract dysfunction (iLUTD). The aim of the Think Tank (TT) was to discuss the relevance of psychological morbidities in idiopathic LUTD over the life span, including overactive bladder (OAB) or dysfunctional voiding (DV) and methods of assessment.

METHODS

The paper is based on a selective review of the literature and in-depth discussions, leading to research recommendations regarding the assessment of psychological morbidities in iLUTD on children and adults held during the TT of the International Consultation on Incontinence Research Society in 2019.

RESULTS

Psychological comorbidities affect the health behaviors and treatment outcomes in patients with iLUTD. Both clinically relevant comorbid mental disorders, as well as subclinical psychological symptoms have a major impact and negatively influence incontinence treatment. Research is needed to elucidate mechanisms underlying iLUTD and psychological comorbidities. Clinical studies are needed to determine how perception generation and cognition impacts on the relationship of urinary perceptions, symptoms, and objective urodynamic function. Due to high psychological comorbidity rates, screening with validated, generic questionnaires for emotional and behavioral disorders in children with nocturnal enuresis, daytime urinary incontinence, and fecal incontinence is recommended. Brief screening is recommended for all adults with iLUTD, especially with OAB and DV, who are refractory to treatment.

CONCLUSIONS

Due to the high rate and relevance in clinical practice, screening for psychological comorbidities is recommended for all age groups. The research recommendations of this TT may be followed to improve the assessment of psychological morbidities in iLUTD.

First experience with ATOMS system implant in neurogenic stress urinary incontinence

AIM

To evaluate efficacy and safety of ATOMS implant in neurogenic patients with stress incontinence performing clean intermittent catheterization (CIC).

METHODS

We included all patients with neurogenic sacral/subsacral lesion and stress urinary incontinence, treated with ATOMS implant between January 2018 and March 2019. All patients received anamnesis, 24-hour pad test and pad count, physical examination, video urodynamic evaluation, Qualiveen questionnaire. All patients were followed up at 12 months after implantation. Patients were considered "continent" when dry or when wearing a security pad (social continence).

RESULTS

We treated eight male patients with a median age of 25 years, four affected by myelomeningocele, and four by cauda equine syndrome. The median preoperative 24-hour pad test was 225 g (interquartile range [IQR]: 180-275). During the surgical procedure, we did not fill the cushion to prevent postoperative urethral injuries when performing CIC in the early postoperative time. At a 12-month follow-up, we had a significant reduction in postoperative 24-hour pad test (median value: 7.5 g; IQR: 0-16.25; P < .05). All patients reached continence. We had a significant reduction in the Qualiveen scores (P < .05). Patients demonstrated to be satisfied with the results of the intervention at the PGI-I questionnaire. The only complications were four cases of temporary scrotal edema (Clavien-Dindo 1) treated with conservative therapy. All patients resumed CIC without urethral traumatism nor catheter insertion difficulties. We had no cases of device infection nor device removal.

CONCLUSIONS

Implantation of ATOMS device seems to be an effective and safe minimally invasive procedure also in neurological patients with a low rate of postoperative complications.

Are psychological comorbidities important in the aetiology of lower urinary tract dysfunction-ICI-RS 2018?

AIMS

To review studies on the comorbid psychological symptoms and disorders in patients with lower urinary tract disorders (LUTD) over the life-span, to analyse how they contribute toward the aetiology of LUTD and to discuss optimal service implementation.

MATERIALS AND METHODS

A review of relevant literature was conducted and presented during the ICI-RS meeting in 2018. Open questions and future directions were discussed.

RESULTS

On the basis of current research, there is overwhelming evidence in all age groups that psychological comorbidities are more common in patients with LUTD. Vice versa, patients with psychiatric disorders have higher rates of LUTD. The types of LUTDs and psychiatric disorders are heterogeneous. Complex aetiological models best explain specific associations of comorbidity. Irrespective of aetiology, it is advisable to address both urological and psychological issues in patients of all age groups with LUTD.

CONCLUSIONS

Psychological symptoms and disorders play a decisive role in the development of LUTD in all age groups and need to be considered in the assessment and treatment of LUTD.

The influence of delay elimination communication on the prevalence of primary nocturnal enuresis-a survey from Mainland China

AIMS

A pilot survey shows that primary nocturnal enuresis (PNE) prevalence has increased significantly during the past decade in Mainland China. Whether it is related to the delay of elimination communication (EC) is unclear. This study retrospectively investigated the influence of delayed EC on the PNE prevalence in children and adolescents in mainland China.

METHODS

A cross-sectional study of PNE prevalence was performed by distributing 19 500 anonymous self-administered questionnaires to parents in five provinces of mainland China from July 2017 to October 2017. The questionnaires included sociodemographic data, family caregivers' information, and details about the disposable diapers (DD) usage, EC commencement date, psychological disorders, lower urinary tract symptoms, and family history of PNE in children and adolescents. The 2017 PNE prevalence was compared with that of 2006 in Mainland China.

RESULTS

The total response rate was 97.04% (18 631 of 19 500) and 92.39% (18 016 of 19 500) qualified for statistical analysis. The PNE prevalence in 2017 has increased significantly compared to that of 2006 (7.30% vs 4.07%, P < 0.001). The PNE prevalence in children with EC starting before 6 months of age was significantly lower than those who start after 12 months of age. The longer DD were used and the later the beginning of EC, the higher the PNE prevalence was found.

CONCLUSIONS

The PNE prevalence in Mainland China has increased significantly during the past 10 years. A longer use of DD and later onset of EC may be risk factors for PNE.

Short versus mid-long-term outcome of transanal irrigation in children with spina bifida and anorectal malformations

PURPOSE

We assessed short- and mid-long-term clinical efficacy of transanal irrigation (TAI) and its effect on the quality of life of children with spina bifida (SB) and anorectal malformations (ARM).

METHODS

Seventy-four pediatric patients (age 6-17 years) with SB and ARM with neurogenic bowel dysfunction were enrolled for a prospective and multicentric study. Patients were evaluated before the beginning of TAI (T0), after 3 months (T1) and after at least 2 years (range 24-32 months) (T2) using a questionnaire assessing bowel function, the Bristol scale, and two validated questionnaires on quality of life: the CHQ-PF50 questionnaire for the parents of patients aged 6-11 years and the SF36 questionnaires for patients aged between 12 and 18 years.

RESULTS

Seventy-two patients completed TAI program in T1, and 67 continued into T2. Bowel outcomes (constipation and fecal incontinence) improved in both the SB and the ARM groups in the short and mid-long term. In both groups at T1 and T2, parents and children reported an improvement in quality of life and there was a significant increase of stool form types 4 and 5 as described by the Bristol scale. Common adverse effects during the study were similar at T1 and T2 without serious complications.

CONCLUSIONS

We observed a sustained improvement in bowel management and quality of life in SB and ARM children during the study, more significant in the short term than in mid-long term. To maintain success rates in the mid-long term and to reduce the dropout rate, we propose patient training and careful follow-ups.

Adolescence transitional care in neurogenic detrusor overactivity and the use of OnabotulinumtoxinA: A clinical algorithm from an Italian consensus statement

AIMS

OnabotulinumtoxinA (onaBNTa) for treating neurogenic detrusor overactivity (NDO) is widely used after its regulatory approval in adults. Although the administration of onaBNTa is still considered off-label in children, data have already been reported on its efficacy and safety. Nowadays, there is a lack of standardized protocols for treatment of NDO with onaBNTa in adolescent patients in their transition from the childhood to the adult age. With the aim to address this issue a consensus panel was obtained.

METHODS

A panel of leading urologists and urogynaecologists skilled in functional urology, neuro-urology, urogynaecology, and pediatric urology participated in a consensus-forming project using a Delphi method to reach national consensus on NDO-onaBNTa treatment in adolescence transitional care.

RESULTS

In total, 11 experts participated. All panelists participated in the four phases of the consensus process. Consensus was reached if ≥70% of the experts agreed on recommendations. To facilitate a common understanding among all experts, a face-to-face consensus meeting was held in Rome in march 2015 and then with a follow-up teleconference in march 2017. By the end of the Delphi process, formal consensus was achieved for 100% of the items and an algorithm was then developed.

CONCLUSIONS

This manuscript represents the first report on the onaBNTa in adolescents. Young adults should be treated as a distinct sub-population in policy, planning, programming, and research, as strongly sustained by national public health care. This consensus and the algorithm could support multidisciplinary communication, reduce the extent of variations in clinical practice and optimize clinical decision making.

Embryological and clinical implications of the association between anorectal malformations and spinal dysraphisms

PURPOSE

To describe the association of anorectal malformation (ARM) and spinal dysraphism (SD) in terms of impact on the management of SD and embryogenetic implications.

METHODS

Patients with SD associated with (A) or without (B) ARM were included. The two groups were further divided into operated on (A1/B1) or not (A2/B2) for SD. Groups A and B were compared for type of SD (embryogenetic classification) and prevalence of neurosurgery; Groups A1 vs. A2 for type of ARM (Wingspread classification); Groups A1 vs. B1 for age at neurosurgery, neurophysiology, and clinical symptoms.

MAIN RESULTS

One hundred twenty-one patients with SD, 83 with and 38 without ARM were consecutively treated (1999-2015). Group A was associated only with SDs developing after primary neurulation, corresponding to the period of cloacal septation and organogenesis (p = 0.0007). Untethering surgery was significantly less frequent in Group A (p < 0.0001 and p = 0.04, respectively). Higher ARMs were not associated with increased risk for neurosurgery. No other significant differences were detected.

CONCLUSIONS

In our series, ARMs were associated only with SD developing after primary neurulation, suggesting a single insult leading to both SD and the associated ARM. Neurosurgery is indicated less frequently in patients with ARM-associated SD, despite the similar preoperative clinical features.

Button Cystostomy: Is it Really a Safe and Effective Therapeutic Option in Pediatric Patients With Neurogenic Bladder?

OBJECTIVE

To define safety and effectiveness of cystostomy button in the management of bladder drainage in pediatric patients with neurogenic bladder, and report our personalized surgical technique.

MATERIALS AND METHODS

This study is a retrospective analysis of patients undergoing cystostomy button placement for bladder drainage from October 2009 to December 2015. Endoscopic and open surgical techniques and medium-term complication were analyzed and indications were recorded.

RESULTS

Thirty-five patients, 16 (45.7%) females and 19 (54.3%) males, underwent cystostomy button placement for bladder drainage with a mean age of 8.6 ± 4.8 years (standard deviation) and a mean follow-up time of 37 months. There were 91.4% of patients who had a neurogenic bladder; a nonobstructive urinary retention was diagnosed in the remainder of cases. A medium-term complication was mostly represented by urinary tract infection observed in 10 of 35 patients that was the most representative cause of button removal (4 of 35). Other observed complications were button leakage (n = 2), decubitus (n = 1), and bladder stone (n = 1). No postoperative complication was observed and no differences were found in terms of complications in the two surgical approaches performed.

CONCLUSION

Cystostomy button is a safe and effective treatment for bladder drainage in neurogenic pediatric patients and it is also well accepted by patients and caregivers. Cystostomy button, which may avoid mechanical concerns and most of the social discomfort, should be considered an alternative method to other bladder drainage modalities.

Peristeen(®) transanal irrigation in paediatric patients with anorectal malformations and spinal cord lesions: a multicentre Italian study

AIM

In paediatric and adult patients with neurogenic bowel, transanal irrigation (TAI) of the colon has gained popularity due to the introduction of a specifically designed device. The aim of this pilot study was to present the results of TAI using the Peristeen(®) TAI system in a group of paediatric patients with anorectal malformation (ARM) and congenital or acquired spinal cord lesions (SCLs).

METHOD

Eight Italian paediatric surgery and spina bifida centres participated in the study. The inclusion criteria were age between 6 and 17 years, weight above 20 kg and unsatisfactory bowel management. Patients with chronic inflammatory bowel disease, mental disability and surgery within the previous 3 months were excluded. At the beginning of treatment (T0) and after 3 months (T1) the Bristol scale, a questionnaire assessing bowel function, and two questionnaires on quality of life (QoL) for patients aged 6-11 years (CHQ-pf50) and 12-17 years (SF36) were administered.

RESULTS

Eighty-three patients were enrolled, and seventy-eight completed the study (41 ARMs, 37 SCLs). At T1, constipation was reduced in ARMs from 69% to 25.6% and in SCLs from 92.7% to 41.5%, faecal incontinence in ARMs from 50% to 18.6% and in SCLs from 39% to 9.8% and flatus incontinence in ARMs from 20.9% to 9.8% and in SCLs from 31.7% to 10%. At T0, the Bristol Stool Scale types were 1-2 in 45% of ARMs and 77.5% of SCL patients, whereas at T1 types 1-2 were recorded in only 2.5% of SCL patients. QoL improved in both groups. In the younger group, a significant improvement in QoL was recorded in ARM patients for eight of nine variables and in SCL patients for seven of nine variables.

CONCLUSION

This study showed that Peristeen TAI resulted in a significant time reduction in colonic cleansing, increased independence from the carer and improved QoL in paediatric patients with ARMs and SCLs.

VACTERL association in anorectal malformation: effect on the outcome

PURPOSE

Anorectal malformations (ARM) can commonly occur in association with other congenital anomalies or as part of the combined anomaly. The present study aims to assess the outcome of patients with ARM and patients with ARM in VACTERL association.

METHODS

A 12-year retrospective analysis of all patients treated at a single tertiary children's institution with a diagnosis of ARM. We identified and compared patients with ARM to those with ARM in VACTERL association (3 or more anomalies). Data were collected for both groups to assess type of ARM, urinary incontinence (UI), constipation, soiling, dietary/laxative treatment, bowel management (BM) and surgical complications. Type of lesion and clinical outcomes were classified according to Krickenbeck International classification. Patients lost to follow-up, dead or not yet toilet-trained (or <4 years old) were excluded.

RESULTS

One hundred ninety-eight patients were identified, 174 enrolled in the study. Lesions were classified for each study group (VACTERL- vs VACTERL+) as perineal fistulas (36.4 vs 9.7%, p = 0.0028), rectourethral fistulas (prostatic and bulbar) (23.1 vs 38.7%, p = ns), rectovesical fistulas (3.5 vs 9.7%, p = ns), rectovestibular fistulas (19.6 vs 22.6%, p = ns), cloacal malformations (4.9 vs 9.7%, p = ns), no fistula (4.9 vs 3.2%, p=), others (7.7 vs 6.4%, p = ns). The frequency of both dietary/laxative treatment and BM, as well as surgical complications were significantly higher in patients with VACTERL.

CONCLUSIONS

The coexistence of VACTERL anomalies negatively affects not only the surgical outcome but also the bowel functioning. Therefore, a dedicated follow-up is strongly recommended. Further studies are needed to assess if this has an impact on the quality of life of these patients.

Epidydimo-orchitis and anorectal malformations: when and in whom?

PURPOSE

Epididymo-orchitis (EO) is infrequently reported in anorectal malformation (ARM) cases. Therefore, it is difficult to assess its risk factors.

METHODS

A total of 110 male patients who were operated on for ARM at the same Institution over a period of 13 years were contacted. Association was assessed between EO and the following: spinal dysraphism (SD), symptomatic VUR (VUR), and bowel management (BM) requiring enemas. The data were analyzed with the Chi-square test.

RESULTS

A total of 89 patients were contacted. Ten cases of EO were found, and all occurred in patients with recto-urethral (RU) fistula after reconstruction. The patients' age at first episode ranged between 4 and 11 years. RU fistula patients experiencing EO (Group A, 10 patients) were compared with those without EO (Group B, 33 patients). VUR occurred in 9/10 cases in Group A and in 13/33 cases in group B (Chi-square 7.8658, p = 0.005038). SD was present in 4/10 cases in group A and in 13/33 cases in Group B (Chi-square 0.0434, p = 0.83491). A total of 8/10 cases in Group A and 12/33 cases in Group B were on BM (Chi-square 5.87, p = 0.0015).

CONCLUSIONS

EO occurs in approximately in 20 % of male cases with ARM, and recto-urinary communication and should be considered the primary diagnosis in the presence of testicular pain. This could avoid unnecessary surgical exploration, and the family should be counseled about this subject.

Gait analysis in bladder exstrophy patients with and without pelvic osteotomy: a controlled experimental study

BACKGROUND

The role of bony pelvic anomalies in bladder exstrophy is long established and has generated many papers addressing walking problems. Biomechanical studies and kinematic gait analysis were performed on very young children.

AIM

A direct kinetic gait evaluation has never been performed, nor has the effect of pelvis dimorphism on the upper body been studied.

DESIGN

Controlled experimental study.

SETTING

Outpatients were studied at the time of periodic follow up.

POPULATION

Nineteen patients with bladder exstrophy, age 14±8 years, and twenty-five healthy control participants, age 15±8 years, were enrolled in the present gait analysis study.

METHODS

Clinical evaluation and standard gait analysis were performed.

RESULTS

Gait analysis deviations between exstrophy patients and controls and between patients that received pelvic osteotomy (OT--6 patients) and those that did not (no-OT--13 patients) were analyzed. Bladder exstrophy significantly affects kinematics and kinetics of trunk, spine, pelvis, knee and foot; in particular: in OT, trunk retroversion, pelvic retroversion and rotation, hip adduction angle and moment, knee flexion and its maximum power during loading response increased, whereas in no-OT, spine angle, pelvic posterior tilt, hip extension, and the external rotation of the foot progression angle increased. All the kinetics parameters analyzed in the study showed lower values in the patient group than in controls.

CONCLUSION

. Walking in patients with bladder exstrophy is accomplished by retroversion of the pelvis and deviations mainly in the spine angle in no-OT and in knee flexion in OT.

CLINICAL REHABILITATION IMPACT

Gait analysis was shown to be an effective tool for the detection of walking deviations that should be identified early, prompting rehabilitative treatment in order to prevent spine and knee diseases.

A cost-of-illness study of spina bifida in Italy

Introduction

Spina bifida (SB) is a congenital malformation of the spinal cord, nerves, and adjacent covering structures, with different levels of severity and functional disability. The economic cost of spina bifida and its prevention using folic acid have never been estimated in Italy. This study was conducted to define the cost of illness of SB in Italy.

Methods

A retrospective multicenter observational study on the social cost of patients with SB was carried out in three SB centers in Italy. Cost data were collected relating to the 12 months preceding the enrollment time (T0), and subsequently 3 months after the T0 time (±20 days) through a case report form designed to collect the relevant information on the costs incurred during the period considered. The data for all patients were analyzed through multivariate analysis on the main parameters.

Results

We enrolled 128 patients equally divided between males and females, with a mean age of 13 years (minimum, 0; maximum, 29). Diagnosis was mostly postnatal, with 64 cases diagnosed at birth and 33 cases diagnosed subsequently. The lesion severity levels, as defined in the inclusion criteria, were walking (52 patients); walking with simple orthoses (33 patients); walking with complex orthoses (16 patients); and nonwalking, (25 patients). The anatomic type identified is open SB in most cases (84 patients), followed by closed SB (37 patients) and SB occulta (3 patients). The most significant cost per year was for assistive devices, for a total of 4307.00 €, followed by hospitalization (907.00 €), examinations (592.00 €), and drug therapy (328.00 €). Cost breakdown by age range shows that the highest costs are incurred in the 0–4 age range. The highest cost was for cases of open SB (12,103.00 €). The cost/degree of severity ratio showed that the highest cost was for nonwalking patients (14,323.00 €), followed by patients walking with complex orthoses (13,799.00 €).

Conclusion

The data from this study show that the mean total cost for a patient with SB was 11,351.00 € per year. Based on data provided by the Italian Institute of Health, we can estimate a total annual social cost of about 60 million Euros per year for SB in Italy. Cost of illness was correlated with age and degree of severity of SB.

Effects of botulinum toxin type a in the bladder wall of children with neurogenic bladder dysfunction: a comparison of histological features before and after injections

PURPOSE

Botulinum toxin type A has gained popularity in urology. Most reported studies have been in adults at urology centers and most have addressed long-term safety. Since botulinum toxin type A treatment for neurogenic bladder dysfunction requires repeat injections, verifying that such treatment does not induce fibrosis in children seems essential.

MATERIALS AND METHODS

The study was approved by the institutional review board and patients were enrolled after we obtained written consent. Patients with neurogenic bladder dysfunction not responding to conventional treatment (anticholinergics and clean intermittent catheterization) were treated with 10 IU/kg botulinum toxin type A up to a maximum of 300 IU. Endoscopic cold cup biopsies were obtained from the posterolateral bladder wall 1.5 to 2 cm above the ureteral orifice. Bladder wall findings were categorized into 3 groups, including inflammatory infiltration, edema and fibrosis. Each criterion was then graded as mild or severe and analyzed by Fisher's exact test (p <0.05).

RESULTS

A total of 46 bladder wall biopsies were obtained from 40 patients 2 to 18 years old. Biopsies were evaluated in groups 1 and 2, including group 1-20 from patients with no botulinum toxin type A injection and group 2-20 after botulinum toxin type A injection. Group 2 was subdivided into group 3-10 biopsies after 1 injection and group 4-10 after multiple injections. Six patients underwent biopsy twice, that is before the first and second treatments. Histological changes were present in all biopsies. When comparing groups 1 and 2, there was no statistically significant difference in inflammation and edema. However, there was a significant difference in fibrosis between groups 1 and 4 (p <0.05) with apparently decreased fibrosis after multiple injections.

CONCLUSIONS

In our experience repeat botulinum toxin type A injections into the detrusor in children do not lead to increased fibrosis in the bladder wall. This study confirms the long-term safety of botulinum toxin type A in the pediatric population.

Current state of nerve stimulation technique for lower urinary tract dysfunction in children

PURPOSE

A variety of electrical nerve stimulation methods has been used through the years to treat lower urinary tract dysfunction. Relevant literature was reviewed to analyze techniques and available biomedical devices, technique applicability, indications and usefulness in pediatrics.

MATERIALS AND METHODS

An extensive search was performed on PubMed® and MEDLINE® for scientific publications on intravesical, transcutaneous, sacral spine and root, and tibial nerve stimulation in children with lower urinary tract dysfunction of nonneurogenic and neurogenic origin. Relevant articles and controlled studies in adult patients were also considered. The search covered the period 1990 to 2009 and we found approximately 400 articles, of which 29 related to pediatrics.

RESULTS

Due to feasibility problems with placebo studies the majority of the studies were noncontrolled, some of them clinical trials on acute urodynamic changes during electrical stimulation or experimental research in animals. Overall only a few randomized trials were found. Regarding types of electrostimulation and indications in children the recent literature emphasizes stimulation far from the anal-genital region, such as sacral transcutaneous electrical nerve stimulation, mainly for refractory overactive bladder. Intravesical stimulation is the procedure of choice to enhance sensation in patients with incomplete neurogenic lesions. Percutaneous tibial nerve stimulation is tolerated by children but has been poorly studied. Sacral neuromodulation using implanted devices remains questionable and needs further clarification of its indications. Magnetic stimulation has rarely been used in children to date. More experimental studies are needed to assess the method of action and refine the parameters of stimulation.

CONCLUSIONS

Clinical controlled trials vs sham devices and predictable variables for successful response are urgently needed to address an apparently renewed focus on the use of nerve stimulation in the treatment of pediatric lower urinary tract symptoms.

Acute oligohydramnios: antenatal expression of VURD syndrome?

OBJECTIVE

Oligohydramnios (OA) is nowadays regarded as one of the best markers of renal function (RF) impairment in bladder outlet obstruction (BOO) detected in utero. As such, its onset is usually early and progressive because of decline in fetal urine production. A series of acute OA complicating pregnancies with BOO has never been reported.

METHODS

Over a 7-year period, 5 fetuses with in utero suspicion of BOO exhibited an abrupt decrease of amniotic fluid after the 30th week of gestation.

RESULTS

All fetuses were delivered by cesarean section: diagnosis was posterior urethral valves in 3 cases, urethral atresia in 1, and prune-belly syndrome in 1. Urologic work-up demonstrated a unilateral vesicoureteral reflux dysplasia (VURD syndrome) in all 5 fetuses. RF at 1 year was normal in 4 fetuses and impaired in 1.

CONCLUSIONS

Besides obstetrical reasons, OA may also have acute onset occurring in the presence of anomalies of the urinary tract; although diagnosis is almost always BOO, functional and anatomical characteristics of the urinary tract are those of VURD syndrome with a non-functioning, refluxing renal unit. The associated acute OA/VURD syndrome may represent a milder expression of a pop-off mechanism advocated in this syndrome with a more favorable prognosis than progressive OA detected early in pregnancy.

Long-term efficacy of percutaneous tibial nerve stimulation for different types of lower urinary tract dysfunction in children

PURPOSE

We evaluated the efficacy of percutaneous tibial nerve stimulation for different types of pediatric lower urinary tract dysfunction.

MATERIALS AND METHODS

A total of 14 children with idiopathic overactive bladder, 14 with dysfunctional voiding, 5 with underactive bladder, 4 with underactive valve bladder and 7 with neurogenic bladder resistant to conventional therapy underwent percutaneous tibial nerve stimulation weekly for 12 weeks. The stimulation effect was evaluated by comparing bladder diary, flowmetry and urinalysis before and after treatment. Improved patients were followed by bladder diary and urinalysis. Followup data at 1 and 2 years were compared with those obtained after stimulation. Data were analyzed using Fisher's exact test.

RESULTS

Symptom improvement was significantly greater in nonneurogenic than in neurogenic cases (78% vs 14%, p <0.002). Of patients 18% with underactive bladder and 50% with underactive valve bladder were unresponsive. Of 14 overactive bladder cases 12 and all 14 of dysfunctional voiding were improved (p not significant). Of improved patients 5 of 12 with overactive bladder and 12 of 14 with dysfunctional voiding were cured (p <0.01). On uroflowmetry voided volume and post-void residual urine became normal in a greater number of dysfunctional voiding than overactive bladder cases (57% vs 20% and 57% vs 25%, each p not significant). At 1 year of followup the cure rate was greater in dysfunctional voiding than in overactive bladder cases (71% vs 41%) and it remained the same at the 2-year evaluation. Chronic stimulation was necessary to maintain results in 29% of dysfunctional voiding and 50% of overactive bladder cases.

CONCLUSIONS

Percutaneous tibial nerve stimulation is reliable and effective for nonneurogenic, refractory lower urinary tract dysfunction in children. Efficacy seems better in dysfunctional voiding than in overactive bladder cases. There is evidence that percutaneous tibial nerve stimulation should be part of the pediatric urology armamentarium when treating functional incontinence.

The effect of locally administered anti-growth factor antibodies on neointimal hyperplasia formation in expanded polytetrafluoroethylene grafts

The selective blockage of platelet-derived growth factor BB (PDGF-BB), basic fibroblast growth factor (bFGF), and transforming growth factor beta1 (TGF-beta1) by specific antibodies coated into expanded polytetrafluoroethylene (ePTFE) grafts may diminish neointimal hyperplasia. Sixty pigs were divided into two groups (n = 30 each) and then further divided into five subgroups. Group 1 had a bilateral iliac artery ePTFE interposition graft precoated with Matrigel. Three subgroups (A, B, and C) received a specific monoclonal antibody against PDGF-BB, bFGF, or TGF-beta1. One (D) received all antibodies, and one served as control (nonimmune immunoglobulin G [IgG] isotypes) (E). Group 2 had a bilateral iliac artery endothelial cell (EC)-seeded ePTFE interposition graft precoated with Matrigel. Three subgroups (A, B, and C) received a specific antibody against PDGF-BB, bFGF, or TGF-beta1. One (D) received all antibodies, and one served as control (nonimmune IgG isotypes) (E). Light microscopy and immunohistochemical stain showed that neointimal hyperplasia formation was significantly reduced in subgroups D compared to the others (p < 0.05). In subgroups D, the different precoating influenced neointimal hyperplasia formation. It was more pronounced in the prosthesis precoated with EC and Matrigel (p < 0.05). In organ culture, the amount of PDGF-BB, bFGF, and TGF-beta1 release was reduced in subgroup D animals compared to the others (p < 0.05). In subgroups D, the release of PDGF-BB, bFGF, and TGF-beta1 depended on ePTFE seeding. A higher amount of these growth factors was released in the prostheses precoated with EC and Matrigel (p < 0.05), and the bromodeoxyuridine labeling index confirmed higher incorporation in this subgroup (p < 0.001). The combined use of locally administered anti-PDGF-BB, bFGF, and TGF-beta1 monoclonal antibodies reduces neointimal hyperplasia formation.

Reliability of bladder volume measurement with BladderScan® in paediatric patients

OBJECTIVE

To evaluate the reliability of estimates of bladder volume (BV) in children made with the BladderScan BVI 2500 (BS) and their agreement with standard ultrasound (US) measurements.

MATERIAL AND METHODS

BV was measured using both US and BS in 92 children (41 females, 51 males; age range 3 months to 16 years) who underwent standard US measurements for various reasons. Patients were stratified into three groups according to age (3-35, 36-83 and > 83 months) and BV (< 20%, 20-50% and > 50% of expected bladder capacity for age). US and BS measurements were compared by means of the percentage difference and Pearson's correlation coefficient (r); limits of clinical agreement were evaluated by means of Bland-Altman analysis.

RESULTS

Overall, a difference of -12.9% and a correlation coefficient of r = 0.98 were found between US and BS. The percentage difference was higher in younger patients (-27.8%) and for low volumes (-24.8%). Correlation analysis confirmed this trend in different age (3-35 months, r = 0.74; 36-83 months, r = 0.93; > 83 months, r = 0.97) and BV (< 20%, r = 0.70; 20-50%, r = 0.94; >50%, r = 0.97) groups. Bland-Altman analysis showed large limits of clinical agreement between the two methods in terms of overall measurements (-45 to 29.3 ml) and in both age (-25.3 to 56.9 ml) and BV (-27.5 to 52.5 ml) groups.

CONCLUSIONS

A good correlation between US and BS measurements of BV was found in children aged > 7 years and in those with a BV > 20% of expected bladder capacity. Thus, BS avoids the need for standard US equipment to assess BV for schoolchildren with voiding dysfunction. Nevertheless, a dedicated BS instrument should be used in younger children.

Treatment of neurogenic bowel dysfunction using transanal irrigation: a multicenter Italian study

STUDY DESIGN

Thirty-six patients with unsatisfactory treatment of neurogenic bowel dysfunctions (NBD) were enrolled from Spinal Units and Rehabilitation Centers in Italy. Treatment was for 3 weeks using a newly developed integrated system with an enema continence catheter for transanal irrigation (Peristeen, Coloplast A/S Kokkedal Denmark).

OBJECTIVES

To evaluate the effects of Peristeen Anal Irrigation on NBD and patient quality of life (QoL).

SETTING

Italy.

METHODS

Lesion level, ambulatory status and hand functionality were determined in all patients. NBD symptoms and QoL were evaluated before and after treatment, using a specific questionnaire. Statistical analysis was performed using McNemar Test and Sign Test.

RESULTS

Thirty-six patients were enrolled, and 32 patients completed the study. At the end of the treatment, 28.6% of patients reduced or eliminated their use of pharmaceuticals. Twenty-four patients became less dependent on their caregiver. There was a significant increase in patients' opinion of their intestinal functionality (P=0.001), QoL score (P=0.001) and their answers regarding their degree of satisfaction (P=0.001). A successful outcome was recorded for 68% of patients with fecal incontinence, and for 63% of patients with constipation.

CONCLUSION

Peristeen Anal Irrigation is a simple therapeutic method for managing NBD and improving QoL. It should be considered as the treatment of choice for NBD, playing a role in the neurogenic bowel analogous to that of intermittent clean catheterization in bladder treatment.

TIMP-2 Modulates Neointimal Formation in Experimental ePTFE Arterial Grafts

BACKGROUND

In vascular reconstructive surgery, myointimal hyperplasia contributes to the adverse outcome of synthetic grafts. This phenomenon is because of unregulated extracellular matrix degradation and remodeling, and excessive smooth muscle cell proliferation and migration. Matrix metallopreoteinase 2 (MMP-2) is known as an important contributor to these events. The aims of our study was to investigate the effects of selective MMP-2 inhibitor (TIMP-2) in endothelialization rate, SMC proliferation, and myointimal hyperplasia in experimental ePTFE arterial grafts.

METHODS

In 20 male Lewis rats, a 1-cm long ePTFE graft has been inserted at the level of the abdominal aorta. Animals were randomized in two groups (10 animals each): group A received six subcutaneous inoculations of TIMP-2 (2.5 microg) after surgery, group B received only the vehicle of TIMP-2.

RESULTS

Neointimal thickness, as well as SMC density, were augmented in group B, whereas endothelial cells density was augmented in group A, and these findings were statistically significant. In group A SMC were better organized, just like SMC of thoracic aorta. In group B SMC were no organized. Furthermore, anti-TIMP-2 and anti-MMP-2 coloration revealed higher levels of TIMP-2 and lower levels of MMP-2 in group A versus group-B.

CONCLUSIONS

Use of TIMP-2 affects the neointimal formation of experimental e-PTFE arterial grafts, leading to a better-organized neointima, with improved endothelialization.

An unusual case of synovial cyst of the hip joint presenting as femoral vein compression and severe lower limb edema

INTRODUCTION

Synovial cyst of the hip joint causing the compression of the femoral vein is a rare occurrence. We carefully reviewed the international literature collecting 26 additional cases.

REPORT

A case of a patient affected with synovial cyst of the hip joint causing the compression of the femoral vein and severe lower limb edema is presented.

DISCUSSION

The treatment of choice of synovial cyst compressing the femoral vein is surgical removal.

Pediatric spinal cord injury: approach for urological rehabilitation and treatment

PURPOSE

As proposed in this report, early urological rehabilitative management of patients with spinal cord injuries (SCIs) is mandatory, in order to prevent a poorly compliant bladder with related upper urinary tract complications and secondary renal failure. Moreover, the approach to treating this traumatic condition in children must be as much rapid as appropriate.

MATERIALS AND METHODS

We evaluated our experience of the last 5 years with 17 patients (12 males and five females), with a mean age of 9.6 years at injury (range 6 months-18 years), all affected by an SCI and with direct trauma involved in more than 50%. Mechanism of injury, lesional level, the mean interval between injury and bladder management onset, and the mean interval between bladder management onset and our last control were evaluated. A standardized diagnostic approach was instituted, and all patients received at least a video-urodynamic evaluation before and after the start of urological management. A continence score was established and evaluated before and at least 6 months after the application of rehabilitation treatments (catheterization, medication). Follow-up ranged from 12 to 60 months (average 29.6 months).

RESULTS

Sixteen of the 17 patients showed, at first urodynamic evaluation, a neurogenic overactive bladder. Mean bladder maximum capacity was 287.7 ml+/-146.4 SD. Mean reflex volume and end filling pressure were 119.7 ml+/-76.4 SD and 44.6 cmH(2)O+/-25 SD, respectively. Detrusor sphincter dyssynergia was present in 16 out of 17 of the cases. All patients but one began self-catheterization and medication (anticholinergics). Urinary continence improved in all patients but one. An adjunctive endoscopic procedure for continence was carried out in five out of 17 cases. The upper urinary tract was involved in two out of 17 cases.

CONCLUSIONS

A prompt and standardized urological approach to pediatric SCIs is mandatory. The aims of this initial management are the prevention of further secondary damage to the upper tract and the achievement of a socially acceptable degree of urinary continence as soon as possible after the traumatic event.