Anatomical Gynecological Anomalies in Girls Born with Anorectal Malformations: A Retrospective Cohort Study of 128 Patients

STUDY OBJECTIVE

In girls born with an anorectal malformation (ARM), anatomical gynecological anomalies (GA) may be present and might need treatment. Therefore, the aim of this study was to provide an overview of GA in girls born with ARM in our cohort. Additionally, diagnostic timing and methods for GA were assessed.

METHODS

A retrospective mono-center study was performed from January 2000 to December 2022. All patients assigned female at birth were eligible for inclusion. GA were classified according to ESHRE/ESGE classification. Outcomes were the number of girls with GA with subsequent screening methods, factors associated with GA, and GA requiring treatment. Uni- and multivariable logistic regression analyses were performed to identify the association between baseline characteristics and the presence of GA.

RESULTS

In total, 128 girls were included, of whom 30 (24.1%) had additional GA, with vaginal anomalies being present most often (n = 17). Fifty-six patients (43.8%) underwent full screening, and this number improved over time (37.7% before 2018 vs 72.7% after 2018; P = .003). Thirteen of 30 patients (43.3%) required surgical treatment for their GA, without the occurrence of postoperative complications.

CONCLUSION

Additional GA were present in almost a quarter of the girls born with an ARM, with vaginal anomalies most often identified. Despite GA being most often found in patients with cloacal malformations, these anomalies were also identified in patients with other ARM types. Surgical treatment was required in almost half of the girls with GA. Therefore, this study emphasizes the importance of screening for GA in patients with an ARM, regardless of the ARM type.

Potential benefits of routine cystoscopy and vaginoscopy prior to reconstructive surgery in patients with an anorectal malformation

PURPOSE

First, to assess the number of patients with anorectal malformations (ARM) in whom additional urological and/or gynecological anomalies were identified through routine screening with cysto- or vaginoscopy prior to reconstructive surgery. Second, to assess potential procedure-related complications.

METHODS

Retrospective mono-center cohort study, including all ARM patients born between January 2019 and December 2022. Routine screening consisted of cystoscopy for male patients, with the addition of vaginoscopy for female patients. Chi-square was used to compare the screening percentages over time.

RESULTS

In total, 38 patients were included, of whom 27 (71.1%) underwent cystoscopy ± vaginoscopy, without the occurrence of complications. Nine of 13 females (69.2%) underwent cysto- and vaginoscopy and 18 of 25 males (72.0%) underwent a cystoscopy. The percentage of patients that underwent these procedures improved over the 2 time periods (50.0% in 2019-2020 vs 90.0% in 2021-2022, p = 0.011). In 15 of 27 patients (55.6%) that underwent cystoscopy ± vaginoscopy, additional anomalies were found that were not identified through physical examination or US-kidney.

CONCLUSIONS

In 56% of the patients that underwent cysto- ± vaginoscopy, additional anomalies were identified that were not with imaging studies or physical examination. This study emphasizes the potential benefit of routine cysto- and vaginoscopy in the diagnostic work-up of children with ARM.

LEVEL OF EVIDENCE

III.

The Importance of Screening for Additional Anomalies in Patients with Anorectal Malformations: A Retrospective Cohort Study

BACKGROUND

In children with anorectal malformations (ARM), additional anomalies can occur within the VACTERL-association. Routine screening is of great importance for early identification and potential treatment. However, uniformity in screening protocols is lacking and only small cohorts have been described in literature. The aim of this study was to assess and describe a unique large cohort of ARM patients who underwent VACTERL screening in the neonatal period.

METHODS

A retrospective mono-center cohort study was performed. Included were all neonates born between January 2000 and December 2020 who were diagnosed with ARM and screened for additional anomalies. Full screening consisted of x-ray and ultrasound of the spine, cardiac and renal ultrasound, and physical examination for limb deformities, esophageal atresia, and ARM. Criteria for VACTERL-classification were predefined according to the EUROCAT-definitions.

RESULTS

In total, 216 patients were included, of whom 167 (77.3%) underwent full VACTERL-screening (66% in 2000-2006 vs. 82% in 2007-2013 vs. 86% in 2014-2020). Median age at follow-up was 7.0 years (IQR 3.0-12.8). In 103/167 patients (61.7%), additional anomalies were identified. Some 35/216 patients (16.2%) fulfilled the criteria of a form of VACTERL-association. In 37/216 patients (17.1%), a genetic cause or syndrome was found.

CONCLUSIONS

The majority of ARM patients underwent full screening to detect additional anomalies (77%), which improved over time to 86%. Yet, approximately a quarter of patients was not screened, with the potential of missing important additional anomalies that might have severe consequences in the future. Forms of VACTERL-association or genetic causes were found in 16% and 17% respectively. This study emphasizes the importance of routine screening.

LEVEL OF EVIDENCE

III.

Children with an Anorectal Malformation Going to Primary School: The Parent's Perspective

BACKGROUND

Continence problems occur often in children with anorectal malformations (ARM). The aim of this study was to evaluate parental experiences with toilet facilities at Dutch primary schools and their experience with how schools deal with ARM children.

METHODS

This survey was developed in collaboration with the national patient advocacy group (PAG). Recruitment for participation was conducted by the PAG (email listing and social media) and one expertise center for ARM. Participants were parents of school-attending ARM children aged 3 to 12 years.

RESULTS

Sixty-one participants (31.9%) responded to the survey. The median age of the children was 7.0 years (IQR 5.0-9.0). Schools were often located in a village (63.9%) and encompassed 100-500 children (77.0%). In total, 14 parents (23.0%) experienced difficulties in finding a primary school. Experiences with the school were described as solely positive (37.7%), solely negative (9.8%), positive and negative (34.4%), and neither positive nor negative (16.4%). Regarding school toilet facilities, 65.6% of the toilets were reported clean and 78.7% were easily accessible.

CONCLUSIONS

About 25% of parents reported difficulties in enrolling their children into primary school, and 45% reported negative experiences. This highlights the need for improved guidance and the optimization of education in schools when dealing with ARM children.

Spinal cord anomalies in children with anorectal malformations: a retrospective cohort study

PURPOSE

First, to assess the number of spinal cord anomalies (SCA), specifically tethered spinal cord (TSC) in patients with anorectal malformations (ARM), identified with spinal cord imaging (i.e. spinal cord US and/or MRI). Second, to report outcomes after TSC treatment.

METHODS

A retrospective mono-center study was performed. All ARM patients born between January 2000 and December 2021 were included. Screening for SCA consisted of spinal cord US and/or MRI. Radiology reports were scored on presence of SCA. Data were presented with descriptive statistics.

RESULTS

In total, 254 patients were eligible for inclusion, of whom 234 (92.1%) underwent spinal cord imaging. In total, 52 (22.2%) patients had a SCA, diagnosed with US (n = 20, 38.5%), MRI (n = 10, 19.2%), or both US and MRI (n = 22, 42.3%), of whom 12 (23.5%) with simple, 27 (52.7%) intermediate, and 12 (23.5%) complex ARM types. TSC was identified in 19 patients (8.1%), of whom 4 (21.1%) underwent uncomplicated neurosurgical intervention.

CONCLUSIONS

SCA were present in 22% of ARM patients both in simple, as well as more complex ARM types. TSC was present in 19 patients with SCA, of whom 4 underwent uncomplicated neurosurgical intervention. Therefore, screening for SCA seems to be important for all ARM patients, regardless of ARM type.

LEVEL OF EVIDENCE

Level III.

Outcome after vaginal delivery of women with a previous medical history of surgically corrected anorectal malformations: a systematic review

OBJECTIVE

Discussion remains on how to advise women with a past medical history of surgically corrected anorectal malformations (ARMs) regarding vaginal delivery. The aim of this review is to evaluate and review the reported obstetrical complications and outcomes after vaginal delivery for these women.

DATA SOURCES

A systematic search was performed from inception up to 25 July 2022 in PubMed, Embase.com and Clarivate Analytics/Web of Science Core Collection, with backward citation tracking.

STUDY ELIGIBILITY CRITERIA/APPRAISAL

All articles reported on the outcomes of interest in women with a past medical history of surgically corrected anorectal malformation and had a vaginal delivery were included with the exception of editorial comments or invitational commentaries. Screening, data extraction and risk of bias assessment was done by two authors independently with a third and fourth reviewer in case of disagreement. Tool for Quality assessment depended on the type of article. As low quality evidence was expected no meta-analysis was performed.

RESULTS

Only five of the 2377 articles screened were eligible for inclusion with a total of 13 attempted vaginal deliveries in eight women. In three patients complications were reported: failed vaginal delivery requiring urgent cesarean section in two patients, and vaginal tearing in one patient.

CONCLUSION

High quality evidence regarding outcomes and complications after vaginal delivery in women with a history of surgically corrected anorectal malformation is lacking. Therefore, based upon this systematic review no formal recommendation can be formulated regarding its safety. Future studies are essential to address this problem.

TRIAL REGISTRATION

CRD42020201390. Date: 28-07-2020s.

Diagnostic accuracy of abdominal ultrasound to detect pathology that needs surgical exploration in children with umbilical discharge

BACKGROUND

Umbilical discharge is common in children and mostly attributed to infection or granuloma. However, an underlying congenital abnormality warranting surgery might also be present. Ultrasound is the imaging modality of choice to diagnose the presence of a congenital abnormality. The aim of this study is to investigate diagnostic accuracy of the ultrasound to detect pathology requiring surgical excision.

METHODS

All patients ≤18 years with umbilical discharge from January 2008 to September 2019 were retrospectively included. Diagnostic accuracy, i.e., sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), positive likelihood ratio (LR+) and negative likelihood ratio (LR-), were calculated.

RESULTS

Eighty-one patients were included and 56 were operated. The ultrasound was false positive in 10 patients and false negative in 13 patients. The sensitivity of ultrasound was 71.1% (95% CI 55.7-83.6), specificity 72.2% (54.8-85.8), PPV 76.2% (64.7-84.8), NPV 66.7% (54.8-76.8), LR+ 2.6 (1.5-4.5) and LR- 0.40 (0.2-0.7).

CONCLUSIONS

This study shows that the diagnostic accuracy of ultrasound for detecting underlying congenital abnormalities warranting surgery for umbilical discharge in the pediatric population is low, even with experienced pediatric radiologists. Therefore, the role of the ultrasound in the diagnostic workup and value in clinical decision making is limited.

TYPE OF STUDY

Study of diagnostic test.

LEVEL OF EVIDENCE

III.

Foreskin healing after distal hypospadias repair: Does stenting affect the outcome?

BACKGROUND

Distal penile hypospadias account for about 70% of all cases of hypospadias. There is a variety of operative techniques that could be performed when foreskin reconstruction is an option. The urethral stent is left in the urethra to prevent complications.

OBJECTIVES

To determine whether the duration of stenting influences the healing of foreskin after distal hypospadias repair.

MATERIAL AND METHODS

Data from 2 institutions was retrospectively analyzed. Inclusion criteria were as follows: 1) a modified meatal advancement glanuloplasty without tubularization of the urethral plate, 2) foreskin reconstruction and 3) follow-up - 12 months. All other types of reconstruction and re-do procedures were excluded. The period of urethral stenting was determined intraoperatively depending on the surgeon's preferences. Mean age at operation was 23.3 months. The cohort was divided into 3 groups. In Group I (G-I), no catheter was left or it was removed the next day after surgery. In Group II, the catheter was left for more than 5 days. In those 2 groups, the surgery was done by different surgeons. Group III consisted of 35 patients who had a stent for <2 days, and the procedure was performed by the same surgeon. The χ2 with Yates's correction and Pearson's χ2 tests were used for the statistical analysis.

RESULTS

Overall, 11 patients had foreskin dehiscence and needed re-do surgery. None of the patients required operation because of foreskin stenosis. Complications occurred in 3 out of 33 patients (9%) in Group I, 2 out of 27 in Group II (7.4%) and 6 out of 35 in Group III (17%). There was no statistically significant difference between Groups I and II (p = 0.8144), nor between Groups I and III (p = 0.5344). In the non-parametric Pearson's χ2 test, no significant difference was found in such grouped data (p = 0.4239).

CONCLUSIONS

Prolonged urethral stenting does not reduce the risk of a re-do foreskin surgery after hypospadias repair.

Cowper's syringocele in the pediatric population: a retrospective study of 122 patients

INTRODUCTION AND OBJECTIVE

Syringocele is a rare cystic dilatation of the duct of Cowper's gland, afflicting mostly the pediatric population. Syringoceles have a wide range of symptoms and may cause urethral obstruction. The authors analyzed to clarify the clinical manifestation, diagnostic approach, management, and incidence in the pediatric population.

MATERIALS AND METHODS

All patients (122 cases) diagnosed with a syringocele at the department of Pediatric Urology in a tertiary referral university children's hospital between August 1991 and October 2016 were analyzed retrospectively by assessing medical charts.

RESULTS

The clinical manifestation, diagnostic findings, and follow-up are summarized in the table. Half of the patients (50.0%) also had typical posterior urethral valves (PUVs) and/or a single valve in the 12 o'clock position (flap-valve). The symptoms of open and closed syringoceles showed no significant difference. Treatment consisted of incision of the syringocele with a diathermia hook. The incidence of urinary tract infection (UTI) before and after surgery in the group that had a syringocele only was significant different. The overall incidence of syringoceles seen at urethrocystoscopy in this series was 3.0%.

DISCUSSION

This series suggests that the presenting age is strongly related to the consequences of syringoceles, as the youngest half of the patients had significantly more UTIs at presentation than older patients, who presented with significantly more obstructive voiding symptoms, postvoiding residuals, and incontinence. In addition, the younger group had a significantly higher incidence of vesicoureteral reflux and dilatation of the upper urinary tract. The found association between syringoceles and PUV may be due to overgrowth of epithelium, as possible origin in both anomalies.

CONCLUSION

With an incidence of 3.0%, syringoceles, in this tertiary referral series, should be considered in the differential diagnosis of obstructive urethral lesions. The presentation ranges between signs of severe obstructions in the prenatal and postnatal period to mild urinary incontinence problems at later age. Urethrocystoscopy proved to be useful in confirming the diagnosis and allows for immediate transurethral incision.

Short-term Complications After Pyeloplasty in Children With Lower Urinary Tract Anomalies

OBJECTIVE

To investigate whether children with lower urinary tract (LUT) anomalies are at greater risk for postoperative complications after laparoscopic pyeloplasty stented with a double-J catheter (JJC).

MATERIALS AND METHODS

Prospectively collected data of laparoscopic pyeloplasty (LP) performed between 2006 and 2015 were analyzed. Inclusion criteria are (1) toilet-trained child and (2) unilateral dismembered pyeloplasty stented with a JJC done by the same surgeon. Our pyeloplasty protocol includes cystoscopy and retrograde pyelography. JJC is left in for 3weeks. Asymptomatic patients with infravesical LUT anomalies (a-LUTA) and those with history of LUT symptoms (LUTS) were identified. Any short-term complication was classified according to Clavien-Dindo. Fisher's exact test was used for statistical analysis.

RESULTS

Fifty-four children (mean 9.8 years) were included. Ten of 54 patients had LUTS. In 4 of those 10, anatomical infravesical anomaly was found during cystoscopy. Accidental urethral anomaly was found in 11 patients (a-LUTA). The control group (CG) consisted of 33 patients. Postoperative hospital stay ranged from 1 to 8 days (mean 2 days). Overall complication rate was 8 of 54 (14%). Grade 1 complications occurred in 3 patients in the CG. Five patients had grade 3 complications (2 needed replacement of bladder catheter, and 3 had diversion of the upper tract). Those problems occurred in 1 of 10 patients with LUTS and 3 of 11 patients with a-LUTA compared to 1 of 33 in the CG. This difference was statistically significant (P < .05).

CONCLUSION

Careful history should be taken in toilet-trained children before pyeloplasty. If any infravesical abnormality is discovered, internal diversion should probably be avoided. Special attention must be paid to bladder function in the postoperative period.

Comparison of Strain-Gauge and Photocell Venous Function Testing with Invasive Pressure Measurements. A Prospective Study in Deep Venous Insufficiency

Of noninvasive venous function tests two are well known: photoplethysmography (PPG) and strain-gauge plethysmography (SGP). Their effectiveness in assessment of insufficiency in candidates for venous reconstructive surgery however, is debated. The two methods were studied in these patients, and compared to invasive measurements. Nineteen limbs of patients with deep venous disease, and seven limbs of healthly volunteers were evaluated. Measurements were taken in standing, as well as in the more patient-compliant sitting position. Venous reflux time (RT) proved to be significantly different in patients vs. controls. Differences between expelled volume of controls and patients were only significant for invasive measurements in any position ( p < 0.01), but not with one of the noninvasive methods.

RT invasively and non-invasively measured were well correlated in both positions with PPG ( R = 0.83 – 0.86), and with SGP ( R = 0.85 — 0.92). The percentage residual pressure however, showed in both methods a poor correlation of < 0.50.

The studied noninvasive techniques offer no alternative to invasive measurements in the evaluation of patients with deep venous disease, considered for venous reconstructive surgery.

Training potential in minimally invasive surgery in a tertiary care, paediatric urology centre

BACKGROUND

Minimally invasive surgery (MIS) is being utilized more frequently as a surgical technique in general surgery and in paediatric urology. It is associated with a steep learning curve. Currently, the centre does not offer a MIS training programme. It is hypothesized that the number of MIS procedures performed in the low-volume specialty of paediatric urology will offer insufficient training potential for surgeons.

OBJECTIVE

To assess the MIS training potential of a highly specialized, tertiary care, paediatric urology training centre that has been accredited by the Joint Committee of Paediatric Urology (JCPU).

STUDY DESIGN

The clinical activity of the department was retrospectively reviewed by extracting the annual number of admissions, outpatient consultations and operative procedures. The operations were divided into open procedures and MIS. Major ablative procedures (nephrectomy) and reconstructive procedures (pyeloplasty) were analysed with reference to the patients' ages. The centre policy is not to perform major MIS in children who are under 2 years old or who weigh less than 12 kg.

RESULTS

Every year, this institution provides approximately 4300 out-patient consultations, 600 admissions, and 1300 procedures under general anaesthesia for children with urological problems. In 2012, 35 patients underwent major intricate MIS: 16 pyeloplasties, eight nephrectomies and 11 operations for incontinence (seven Burch, and four bladder neck procedures). In children ≥2 years of age, 16/21 of the pyeloplasties and 8/12 of the nephrectomies were performed laparoscopically. The remaining MIS procedures included 25 orchidopexies and one intravesical ureteral reimplantation.

DISCUSSION

There is no consensus on how to assess laparoscopic training. It would be valuable to reach a consensus on a standardized laparoscopic training programme in paediatric urology. Often training potential is based on operation numbers only. In paediatric urology no minimum requirement has been specified. The number of procedures quoted for proficiency in MIS remains controversial. The MIS numbers for this centre correspond to, or exceed, numbers mentioned in other literature. To provide high-quality MIS training, exposure to laparoscopic procedures should be expanded. This may be achieved by centralizing patients into a common centre, collaborating with other specialities, modular training and training outside the operating theatre.

CONCLUSION

Even in a high-volume, paediatric urology educational centre, the number of major MIS procedures performed remains relatively low, leading to limited training potential.

Therapeutic approach to Candida bezoar in children

INTRODUCTION

Candida bezoar (CB) is a rare finding in neonates and infants with candiduria, presenting as necrotic debris with proliferating mycelia in the collecting system of the kidney. If initial antifungal medical treatment does not result in clearance of candiduria and disappearance of CB on ultrasound in dilated kidneys, invasive interventions like insertion of nephrostomy tubes (NT) or surgical interventions to drain the kidney are sometimes advocated(.). However, NT placement can be a technical challenge, especially in pre- and dysmature neonates, and NT displacement or obstruction by the CB can lead to suboptimal treatment. Identification of those children who will benefit from invasive renal drainage is important.

OBJECTIVE

This study evaluates the management of patients with CB in three tertiary referral hospitals to determine criteria for intervention.

MATERIALS AND METHODS

A retrospective multicenter chart analysis was conducted of children with candiduria and ultrasonographic demonstration of CB (diagnosed between March 1995 and August 2012). The indication for invasive renal drainage (if performed) and subsequent clinical outcome, serum creatinine levels and ultrasound findings were assessed.

RESULTS

A total of 12 children were included, two of which were premature neonates. Eight children had congenital urogenital anomalies. One older child with acute myeloid leukemia had CB during chemotherapy and one ex-premature developed CB following cerebral candidiasis. All children received systemic antifungal medication; in seven children invasive treatment was added. Indications for invasive treatment were clinical deterioration, progressive renal dilation, pyonephrosis, rising creatinine levels and persistence of CB. Two underwent a Y-cutaneous ureterostomy and nephrostomy tubes were inserted in five children. Percutaneous renal drainage by nephrostomy led to complications in 3 of 6 procedures. In all patients, irrespective of therapeutic modality, follow-up ultrasound demonstrated no de novo changes. No additional parenchymal defects or deterioration of split renal function were seen on DMSA or MAG-3 scan.

DISCUSSION

In the literature renal drainage is suggested in case of complete obstruction. However dilatation is a frequent finding in children as part of the congenital renal anomaly and does not necessarily mean that there is obstruction of the urinary tract. Even in children without candida infections the diagnosis of obstruction is not straightforward, while the results of a MAG 3 scan can be obscured by compromised kidney function, parenchymal bacterial infiltration and neonatal immaturity of the kidney. If candiduria and CB persist despite intensive medical treatment, intensive consultation is required before renal drainage, because NT insertion might be a surgical challenge. Complications such as displacement of the NT, urinoma development, or NT obstruction can occur and was seen in three of six procedures. Premature neonates seem to be more prone to complications due to their small anatomical proportions, requiring medical equipment with small diameters prone to displacement and obstruction. Some studies describe successful pharmaceutical management in the majority of patients with CB. Other studies describe unilateral surgical intervention in children with bilateral CB where unilateral drainage did not influence overall renal outcome. This is in line with our results. A limitation of the present study is its retrospective design. In this population, the motivation for invasive renal drainage or conservative management was not well documented in all cases, and was mainly based on clinical and diagnostic parameters like creatinine levels and radiographic findings.

CONCLUSION

Renal drainage should be considered in selected cases after failure of systemic antifungal treatment. Inserting and maintaining a nephrostomy tube in young children is associated with a high rate of complications; conservative treatment is likely to be sufficient in the majority of patients with candiduria and CB.

Laparoscopic burch colposuspension in children: technical challenges and primary results

OBJECTIVE

To present the primary results of laparoscopic, Burch-type colposuspension (LBC) in children.

PATIENTS AND METHODS

LBC was performed in eight children (mean age, 14 years) with urinary incontinence after failed extensive urotherapy program. In all patients, bladder neck (BN) incompetence was proven by clinical observation, perineal ultrasound (US), and video-urodynamic study (V-UDS). The LBC was performed with patients in the lithotomy position by means of three 5-mm ports. The anterior wall of the vagina, lateral to the BN, was mobilized, and the vaginal wall was bilaterally lifted and sutured to Cooper's ligament, resulting in elevation and fixation of the BN. A catheter was left for 4 days. The mean operation time was 101 minutes (range, 56-150 minutes), and the follow-up time was >6 months.

RESULTS

The postoperative period was uneventful for all patients. Shortly after the procedure, 5 patients (62.5%) were dry, and 1 patient improved (12.5%). After 6 months, 3 patients (37.5%) were dry, and 2 (25%) improved. In 3 wet patients, control US and V-UDS focused on the BN revealed hypermobility and persistent flat vesicourethral angle (VUA) in 1 patient, hypermobility with a good restoration of the VUA in 1 patient, and good fixation with good restoration of the VUA in 1 patient.

CONCLUSIONS

LBC is a challenging procedure in children because of the small operation field. This procedure can be considered to cure refractory stress urinary incontinence in children with BN insufficiency when noninvasive methods have failed.

Intestinal malrotation and volvulus in adult life

INTRODUCTION

Midgut volvulus due to intestinal malrotation is a rare cause of intestinal obstruction when occurring in adult life. This paper documents the difficulties in reaching an early diagnosis.

PRESENTATION OF CASE

We describe the case of an 85-year-old man with non-specific abdominal complaints for 20 years, who presented with sudden onset central abdominal pain. An acute median laparotomy under general anaesthesia was performed during which a 360° clockwise rotation of the small bowel around the mesenteric pedicle of the superior mesenteric artery and vein was found.

DISCUSSION

Malrotation is considered any deviation of the normal rotation of the midgut in embryological development, causing intermittent episodes of gastrointestinal obstruction or acute events of midgut volvulus. Although mainly a paediatric diagnosis, some cases do present in adult life. Radiologic investigations include: upper gastrointestinal contrast studies, Doppler sonography and a contrast enhanced CT of the abdomen. If a true malrotation is diagnosed or found by coincidence, a Ladd's procedure is advised, even if the patient is asymptomatic. There is no proven surgical strategy for preventing the recurrence of small bowel volvulus in case of malfixation of the midgut.

CONCLUSION

Non-specific recurrent abdominal complaints in adults of any age should raise suspicion of the possibility of a midgut malrotation or malfixation with or without intermittent volvulus. This case highlights the importance of diagnosis in an early stage.

Epispadias in boys with an intact prepuce

OBJECTIVE

To present an overview of the clinical presentation and pathological anatomy, and the results of surgical correction of 7 cases of epispadias with intact prepuce; a rare condition that has only occasionally been reported in literature.

PATIENTS AND METHODS

A retrospective search was performed in the surgical and diagnoses database between 1991 and 2011. Seven cases of epispadias with intact prepuce were identified. Five presented as a webbed and buried penis, 1 as phimosis and 1 with suspicion for congenital anomaly of the genitalia.

RESULTS

In 3 of 7 cases, epispadias was suspected or diagnosed at first presentation and could be surgically corrected in the first intervention. In the other 4 cases, epispadias was discovered during surgery, requiring an additional intervention to perform epispadias repair in 3 cases. One boy was diagnosed with glandular, 3 with coronal, 1 with shaft and 2 with penopubic epispadias. Epispadias repair was successful with regard to cosmesis and erectile function. Five patients developed normal continence after surgery, 1 after intensive urotherapy. An under average penile length was the main reported problem during follow-up.

CONCLUSION

In the diagnostic process for a concealed penis, the possibility of epispadias should be considered. If epispadias is suspected or confirmed, epispadias repair can occur in the first intervention, reducing the number of additional interventions. Epispadias with intact prepuce appears to have a better prognosis concerning urinary continence compared to classical epispadias.

Efficacy and safety of urethral de-obstruction in boys with overactive bladder complaints

OBJECTIVE

To gain insight into the efficacy and safety of urethral de-obstruction in boys with overactive bladder (OAB) complaints refractory to conservative treatment.

MATERIALS AND METHODS

All boys, older than 5 years, referred in 2009 for OAB complaints were included, n = 180. Nine had abdominal or penile pain as predominant complaint. 82% were tertiary referrals after unsuccessful conservative treatment with antimuscarinic medication and/or urotherapy for OAB. In 121, urethral obstruction was urodynamically proven or seriously suspected, and they underwent urethrocystoscopy with relief of obstruction, when present. Average duration of unsuccessful conservative pre-treatment in this group of patients was 1.2 years. Postoperative results, in terms of relief of complaints, were analyzed. Safety was assessed by analyzing those patients who had a secondary transurethral procedure in the same year, or in the 3 years after primary treatment.

RESULTS

Of 106 boys with OAB, urge incontinence or therapy-resistant bedwetting, after de-obstruction 33 became free of complaints and 39 showed significant improvement, totaling 72 (68%); dry after additional urotherapy 11 (10%); no change 21 (20%). Nine boys had de-obstruction because of penile or abdominal pain, with 5 completely cured after the procedure. Follow-up treatment was cognitive training in 39, temporary anticholinergic treatment in 26 and CIC in 2 cases. Recurrence of obstruction was seen in 10% during the 3-year follow-up period.

CONCLUSION

After failure of conservative therapy, one should actively look for any urethral obstruction as underlying cause of OAB. For such patients, urethral de-obstruction is highly effective, with only a few minor late complications resulting in recurrence of obstruction.

Vesicoscopic bladder neck procedure in children: what we have learned from the first series

OBJECTIVE

To assess the results of endoscopic bladder neck procedure on the anterior bladder wall in children.

MATERIALS AND METHODS

Surgery is done in the lithotomy position using three 5-mm ports. The bladder is insufflated with CO2. A U-shaped incision is made around the bladder neck. A mucosal strip is tabularized around a 12 French catheter and covered with the second layer of mucosa. Twenty procedures were performed on 18 patients (mean age, 9.8 years), and the follow-up period was >1 year (mean, 34 months). Mean operation time was 149 minutes. Twelve patients had neurogenic lower urinary tract dysfunction. Fifteen patients failed earlier bladder neck surgery, predominantly fascia sling suspension. Preoperatively, all patients had low detrusor leak point pressure. Clean intermittent catheterization (CIC) was resumed through the urethra in 11 patients and through a stoma in 6 patients.

RESULTS

Two patients needed conversion because of CO2 leakage. Six patients were dry, and 4 improved in the short term (3-6 months). After 1 year of follow-up, 2 patients were dry, and 6 improved. In the long term, 1 (9%) out of 11 patients who were catheterized through the urethra was dry, and 3 of the 11 patients (27%) improved. Of the 6 patients with a CIC stoma, 1 (17%) was dry, and 3 (50%) improved.

CONCLUSIONS

Endoscopic bladder neck surgery is, for most patients, a minor operation, but the long-term results are disappointing. The construction of a continent channel for CIC can improve the outcome when anterior bladder neck plasty is performed.

Detrusorectomy reduces the need for augmentation and use of antimuscarinics in children with neuropathic bladders

OBJECTIVE

To assess bladder behaviour and long-term outcome after detrusorectomy in children.

MATERIAL AND METHODS

Between 1990 and 2001, 49 detrusorectomies were performed (mean follow-up: 9.6 years) in children with neuropathic bladders (mean age at surgery: 9.8 years). Urodynamic study (UDS) was done before surgery (pre-UDS) and after surgery (UDS-1 and UDS-2). Bladder behaviour was assessed as good, fair or poor depending on the volume and intravesical pressure. In all patients, oxybutynin and clean intermittent catheterization were used preoperatively. In 24 patients, good bladder compliance and capacity were seen before detrusorectomy.

RESULTS

Good and fair outcomes were observed in 35 (71%) patients at 1 year and in 39 (79%) patients 6 years after detrusorectomy. In 30 (60%) patients, there was hardly any difference between the first and second follow-up. In 9 (18%) patients, formal bowel bladder augmentation was necessary: in 6 (12%) because of poor compliance and in 3 because of small bladder volume and incontinence. Seven patients improved during follow-up, 5 of them after resuming oxybutynin. In 11 patients, oxybutynin could be stopped, and in 2 the dosage could be reduced to once daily.

CONCLUSIONS

The good short-term results of detrusorectomy generally remain unchanged at long-term follow-up. Detrusorectomy can reduce the need for antimuscarinics, and the need for formal bladder augmentation in selected cases.

Wrap plication of megaureter around normal-sized ureter for complete duplex system reimplantations

PURPOSE

A duplex collecting system is a common congenital renal tract abnormality associated with different clinical problems. We describe our experience with ureteral reimplantations of a complete duplex collecting system where 1 megaureter needing recalibration and 1 normal-sized ureter coexisted. Recalibration of the megaureter was done by wrap plication around the normal-sized ureter.

MATERIALS AND METHODS

Operative logs and case notes were reviewed of consecutive children with a complete duplex collecting system treated with wrap plication of the megaureter around the normal-sized ureter and reimplantation between 1997 and 2010. Reoperation, vesicoureteral reflux and obstruction rates were assessed.

RESULTS

A total of 25 children underwent wrap plication and ureteral reimplantation. Of the cases 19 (76%) were completely successful and 6 (24%) needed reoperation. Three children (12%) had persistent high grade vesicoureteral reflux, 2 (8%) underwent endoscopic correction and 1 (4%) underwent repeat reimplantation of the duplex system. Three children (12%) had postoperative obstruction and 2 (8%) underwent endoscopic incision of the ureteral orifice. In 1 child (4%) a nonfunctioning lower moiety of the kidney developed, which was managed by heminephrectomy.

CONCLUSIONS

Wrap plication of a megaureter around the normal-sized ureter before reimplantation seems to be a relatively safe method in the surgical management of children with a complete duplex collecting system of the kidney. Sufficient spatulation of the lower pole ureter seems to be crucial.

The Malone antegrade continence enema procedure: the Amsterdam experience

BACKGROUND

The Malone antegrade continence enema (MACE) procedure has been previously described as a safe and effective option for the treatment of children with chronic defecation disorders when maximal medical therapy and conventional treatment have failed.

PURPOSE

To evaluate clinical success, complications, and quality of life of children with chronic defecation disorders with a MACE stoma.

METHODS

A retrospective analysis of 23 patients who underwent the construction of a MACE stoma was performed. Preoperative and postoperative data were evaluated. A specific questionnaire was used to assess patient satisfaction.

RESULTS

A significant increase was found in defecation frequency (1.0 [range, 0-4] pretreatment vs 5.5 [range, 0-28] posttreatment per week; P < .006) and a significant decrease in fecal incontinence frequency (10 [range, 0-14] pretreatment vs 0 [range, 0-14] posttreatment per week; P < .034). Postoperative complications of the MACE procedure were fecal leakage (43%), wound infection (52%), and stomal stenosis (39%). A total of 86% of the patients were satisfied with the results of the Malone stoma (n = 21).

CONCLUSIONS

The MACE procedure is an effective treatment in children with intractable defecation disorders. Postoperative complications are, however, not uncommon. Further refinement of the technique focused to reduce the complication rate is necessary to expand the application of this approach.

Anterior or posterior sagittal anorectoplasty without colostomy for low-type anorectal malformation: how to get a better outcome?

BACKGROUND/PURPOSE

Usually, anorectal malformations (ARM) are treated in 2 or 3 stages for fear of disturbed wound healing and subsequent damage to the anal sphincter complex. The aim of this study was to assess the feasibility, safety, advantages, and follow-up of an anterior or posterior sagittal anorectoplasty in low-type ARM (rectoperineal or rectovestibular), performed without colostomy.

MATERIALS AND METHODS

Prospective collection of data regarding demographics, VACTERL (Vertebral-, Anal-, Cardiac-, Tracheo-Esophageal-, Renal-, Limb malformations) screening, perioperative measurements, surgeons, and complications.

RESULTS

In 35 consecutive children (13 boys, 22 girls), repair of a low-type ARM was performed without colostomy. There were 13 boys and 10 girls with a rectoperineal and 12 girls with a rectovestibular fistula. The median age at operation was 4 months (range, 0-73 months); 34% being performed in the newborn period. Seventeen children had one or more other congenital anomaly. Preoperatively, all patients had rectal washouts with oral and rectal neomycin, and perioperative antibiotics, either 24 h (prophylaxis) or for 2 to 5 days. An anterior or posterior sagittal anorectoplasty was performed. Postoperatively, 9 children had no enteral feeding and total parenteral nutrition (TPN). All children had postoperative anal dilatations according to the Peña scheme. Two children (both with rectoperineal fistula) had a wound abscess; in the first child (with renal insufficiency), a colostomy was performed and in the other child a successful correction of the anoplasty was done. In 7 children (4 rectoperineal, 3 rectovestibular fistulae), the anus eventually healed after minor wound dehiscence. There was 1 anal stricture, after a median follow up of 14 months (range, 1-84 mo). After therapeutic antibiotics (2-5 days), 11% (2/18) had some degree of wound infection, versus 41% (7/17) after either no antibiotics or after prophylactic antibiotics (24 hours). Patients with TPN did not seem to profit with regard to wound healing and one patient experienced a central line related sepsis. At last follow-up, 12 children needed regular laxatives and/or enemas. Anal dilatations were well accepted above 6 months, and a trend was seen towards less need for laxatives when dilatations were continued longer.

CONCLUSION

Repair of a low-type ARM without colostomy, with therapeutic antibiotics, and followed by a long period of postoperative anal dilatations has low morbidity and good outcome, which does not seem to be improved with TPN.

Inguinal lymphadenitis caused by mycobacterium haemophilum in an immunocompetent child

Infections caused by Mycobacterium haemophilum in immunocompetent patients are unusual. M. haemophilum have been associated with cervicofacial lymphadenitis in children, but inguinal infections have not yet been described. We present a case of an inguinal lymphadenitis caused by M. haemophilum in an immunocompetent girl.

Pre-operative diagnostic biopsy and surgery in paediatric liver tumours--the Amsterdam experience

AIM

To report 24 years of pre-treatment biopsy and surgical experience in primary liver tumours in children.

METHODS

Between 1979 and 2003, 53 children presented with a primary liver tumour of whom 48 who underwent surgical resection were evaluated (two died, two were unresectable, and one was transplanted). Biopsy data, per- and post-operative complications, mortality, and survival were retrospectively reviewed.

RESULTS

Benign tumours were diagnosed in eight patients. Surgical resection for a malignant tumour was performed in 40 patients (26 hepatoblastomas (HB), eight hepatocellular carcinomas (HCC) (four had fibrolamellar HCC), three rhabdomyosarcomas (RMS), one neuroblastoma, one non-hodgkin lymphoma (NHL), and one teratoma). Primary resection was performed in one HB, and four HCCs. The cumulative survival without evidence of disease was 73% for HB (median 7 years) and 88% for HCC (median 3.5 years).

CONCLUSION

The treatment results are comparable with those of larger international series except for HCC. The existing diagnostic pitfalls in differentiating between the various liver malignancies justify the use of a diagnostic biopsy.

Use of passive function testing in venous insufficiency: a prospective study

In a prospective study, the results of venous function tests in 19 lower extremities with deep venous insufficiency and in seven control extremities were compared. First, the routine method of asking the patients to exercise their calves was used. Second, cuffs around the calves were rapidly inflated, producing standardized external compression to the calf muscle pump. Our aim was to decrease the influence of artifacts from involuntary muscle efforts and especially to render reproducible results of pressure reduction after passively pumping. The passive function test proved to be the only technique with which a decrease in pressure measured with strain gauges while the patient was in the standing position could significantly be discriminated between diseased and control extremities. Furthermore, the correlation of pressure decrease invasively versus measured noninvasively improved to 37% and thus became significant. Simulating calf venous pump function with the aid of inflatable cuffs is easily applicable in the vascular laboratory. It enables the vascular surgeon to reliably quantify venous recovery time and pressure reduction.

Construction of peritoneal venous valves: an experimental study in rats and piglets

In the search for new techniques to improve venous valve insufficiency, a peritoneal patch with a mesothelial layer on either side was employed in the venous circulation to construct a venous valve de novo. This material was used because of the resemblance in fibrinolytic activity of mesothelial cells to endothelium. The behavior of double-sided flaps of peritoneum was first studied on only one side in the caval vein wall of 10 rats. All veins remained open, and smooth incorporation of the patch into the vein wall was observed. It was therefore decided to use the same material for construction of a cusp blade in the venous circulation. This venous reconstruction was microsurgically performed in 21 rats and 4 piglets. In our hands, intramuscular anesthesia proved superior to intraperitoneal analgesia in rats. For the piglets mechanical ventilation and general anesthesia were used. In 9 of 21 rats a fair or good result was observed, although it did not seem possible to create a fully competent valve with only one cusp blade in the 1.5-mm-diam caval veins. The same fact evolved from the study using four 7-mm-diam piglet veins. All peritoneal flaps in the venous circulation demonstrated rebuilding of their structure, perhaps induced by the relatively exaggerated central venous flow. To our knowledge, this technique has never been used before. It seems to offer many advantages in the venous circulation, where hardly any thrombogenic surface is tolerated in contrast to the arterial circulation. Application in humans is yet premature, but future research may resolve several problems that occurred in this study.

Failure of quantitative venous photoplethysmography to assess venous insufficiency: a prospective clinical study

The increase of deep venous reconstructive surgery necessitates reliable tests for evaluation of the results, which requires quantization of the expelled volume. This could only be done with invasive measurements, but now it seems possible to calibrate photoelectric cells, and quantize the results. Nineteen limbs of patients with deep venous disease and seven limbs of healthy volunteers were evaluated, with methods known from the literature. In addition to measurements in standing position, these methods were used in the more patient-friendly sitting position. Invasively and noninvasively measured recovery times correlated well in the standing (R = 0.83) and in the sitting position (R = 0.86). However, the quantization of expelled volume did not significantly correlate. Also, the differences between expelled volume of controls and patients were only significant with invasive measurements in the standing position (P = 0.006) as well as in the sitting position (P = 0.004). The differences were not significant with the noninvasive method. In our opinion, photoelectric cells still do not offer an alternative for invasive measurements in the evaluation of results after venous reconstructive surgery.