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PubMed2006

Occult neurovesical dysfunction with anorectal malformations.

OBJECTIVE: To evaluate for the occurrence of occult NVD in children with anorectal malformations (ARM) using urodynamic evaluation. METHODS: This prospective study was carried out on children with ARM prior to and following definitive procedure. Urodynamic studies were performed on the Phoenix Griffon machine (Albyn Medical) using Phoenix plus software. RESULT: Nineteen children in the age range of 3 months to 156 months (mean = 19.2) were included in this study. Among these 19 children 13 underwent re-evaluation after definitive surgery for ARM. There were 11(57.9%) males and 8(42.1%) females. Of the 19 children 14 (73.7%) were cases of high anorectal malformation (HARM) and 5 (26.3%) were cases of low anorectal malformation (LARM). Baseline evaluation done in 19 children revealed seven urodynamic patterns: Normal capacity, compliant without uninhibited contractions (UIC) (21.1%); Normal capacity, compliant with UIC (5.3%); Normal capacity, poorly compliant without UIC (5.3%); Normal capacity, poorly compliant with UIC (10.5%); small capacity, compliant with UIC (5.3%); Small capacity, poorly compliant with UIC (26.3%) and large capacity, complaint with UIC (26.3%). Thirteen patients were evaluated post operatively also and in only 23% (3 of 13) no change in urodynamic pattern were observed. In the remaining 76.9% (10 of 13) some changes in urodynamics pattern were observed. The deleterious changes observed were appearance of UIC in 30.8% (4 of 13), decrease in the bladder capacity in 23% (3 of 13) and decrease in bladder compliance in 15.4% (2 of 13). CONCLUSION: Only 9 of of the 19 patients had normal urodynamics pre-operatively and post-operatively 3 more patients worsened. Incidence of occult NVD is high in patients with ARM even in the absence of clinical and radiological evidence of vertebral or lower urinary tract abnormalities. Though there seems to be a high incidence of changes in the neurovesical functions of these patients following definitive corrective surgery for ARM only time will show whether this has any deleterious effect on the upper tracts.

Anal Canal↗
PubMed1999

The spectrum of imaging in Currarino triad.

The aim of this study was to evaluate the spectrum of findings and the efficacy of different imaging modalities in order to formulate recommendations for diagnostic imaging of Currarino triad (ASP syndrome), including screening of relatives. The imaging films of five female patients (age range 6 weeks to 12 months) were analysed retrospectively. The studied material consisted of US and MRI of the lower spine (5 patients each), lumbosacral plain radiography (4 patients), contrast enema (4 patients), urinary US (2 patients), genitography (1 patient) and myelo-CT (1 patient). Depiction of pathological findings with different imaging modalities was reviewed and validated with special respect to their demonstrability by US. Ultrasonography detected the sacral bony defect as well as the presacral pathology (meningocele and/or tumour) and thereby gave the basic diagnosis in all of the cases. It also depicted tethered cord and urinary tract abnormalities correctly. Magnetic resonance imaging gave a more distinct visualization of pre- and intraspinal pathology with additional demonstration of intraspinal lipoma in two cases. Regarding anorectal and genital malformations, radiographic contrast agent studies had been used in all patients. Two blind-ending retrorectal fistulas, depicted by enema, were missed by MRI. Patients with congenital or early infancy obstipation, anorectal malformations and complex urinary tract malformations should have spinal and pelvic sonography first. A plain film of the sacrum is recommended in equivocal cases. The need for MRI and contrast agent studies depends on the individual pathology, whereas presently MRI has made further radiographic imaging increasingly dispensable. A screening program with lumbosacral US or plain radiography for families with Currarino triad should be obligatory.

Abnormalities, Multiple↗
PubMed2005

Genetic analysis of anal atresia in pigs: evidence for segregation at two main loci.

Anal atresia is a relatively common congenital malformation that occurs in about 1 out of 5000 infants, caused by abnormal hindgut development of the embryo, often associated with other developmental anomalies (e.g., Currarino, Townes-Brock, Pallister-Hall syndromes, and VATER association). Genetic analysis in human families is exceedingly difficult due to the multifactorial nature of the trait. In pigs, anal atresia occurs at a higher incidence (0.18%) than in humans. A complete genome scan (165 microsatellite markers) was performed using a backcross pedigree previously obtained by crossing affected animals from a partially inbred line, selected for a high incidence of anal atresia, with an unaffected male of a different breed (Meishan). The data set was analyzed with classical linkage (TWOPOINT) and nonparametric genetic methods (NPL, Non-Parametric Linkage, and TDT, Transmission Disequilibrium Test). Both methods support association of the trait with two loci on Chromosomes 9 and 15. GLI2 (GLI-Kruppel family member GLI2) was identified as a positional candidate gene based on comparative mapping; radiation hybrid mapping confirmed that this locus is located within the QTL region.

Animals↗
PubMed2004

Acute retention of urine due to prolapsing stoma in a case of anorectal malformation with bladder neck fistula.

This case report describes an extremely premature infant who was born with a high anorectal malformation requiring a colostomy soon after birth. He later developed multiple episodes of acute urinary retention complicated by bilateral hydronephrosis and acute renal failure. The cause of the retention was found to be the prolapsing stoma, which was kinking the bladder neck.

Acute Kidney Injury↗
PubMed2004

Anorectal malformation with congenital absence of vagina: a case report and review of the literature.

Congenital anorectal malformations are relatively common, and associated genitourinary malformations have been reported in up to 40% of patients. Uterovaginal malformations are also not rare in children. They are known to occur with increased frequency in children with anorectal malformations, but the diagnosis may still be difficult. We report herein one such case of anorectal malformation associated with congenital total absence of the vagina in which the uterovaginal malformation was not diagnosed until the operative repair of the anorectal malformation. The operative procedure was thereafter directed, along with the anorectoplasty, towards restoring a functional uterovaginal tract. Review of the literature revealed that such a diagnosis is unsuspected or delayed in more than half of affected patients. Furthermore, these patients present with many diagnostic and therapeutic problems. Our report highlights the need to be aware of this condition to allow for an earlier diagnosis and appropriate operative treatment.

Abnormalities, Multiple↗
PubMed2004

Intraoperative colonic lavage in infants using a Replogle tube.

On-table colonic lavage for preparing obstructed bowel prior to anastomosis or stoma formation is now routine in adults, but it is seldom used in paediatric practice. We describe a simple technique for intraoperative colonic lavage using inexpensive medical devices that are also readily available and disposable, a Replogle tube, a fine-bore sucker, and a 20-ml syringe. We have used this technique in infants with intestinal obstruction due to anorectal malformations, intestinal atresias, and post-NEC strictures, to good effect.

Anus, Imperforate↗
PubMed2004

Urogenital sinus, rectovaginal fistula, and an anterior stenosed anus--another cloacal variant.

The persistent cloaca is one of the most complex and challenging developmental malformations. It is a rare anomaly occurring only in the female newborn and is represented by the association of urogenital sinus with an anorectal malformation (ARM). Each case is probably unique. We report here one such case of cloaca with the VATER association-tracheoesophageal fistula (TOF) with a urogenital sinus, rectovaginal fistula, and an anteposed stenosed anus, along with preaxial syndactyly of the right hand. The spine, renal, and cardiac systems were normal. Interim management was directed towards repair of the TOF and a right transverse defunctioning colostomy. Despite thorough radioendoscopic preoperative investigations, the complexity of the cloacal anomaly was not delineated until surgery. This case is a rather rare combination of an intermediate form of the cloacal-ARM spectrum. Such patients present with many diagnostic and therapeutic problems. Interval surgery should be directed towards decompression of the affected organ systems, and definitive surgery must be carefully planned and, whenever possible, done in a single stage with simultaneous multisystem repair to correct all significant malformations related to the cloacal complex.

Abnormalities, Multiple↗
PubMed2005

Low anorectal malformation associated with 'ano-urethro-cutaneous' fistula.

Anorectal malformations are one of the common congenital anomalies encountered in the newborn period. The plethora of anomalies described makes it a complex subject for embryological explanations. Fistulous communications between the blind rectum and the urinary tract are common in boys with high/intermediate anomalies, but it is uncommon in children with low anorectal malformations, more so a double fistula. We are reporting a case of 'ano-uerthro-cutaneous fistula' associated with a low ano rectal malformation.

Anus, Imperforate↗
PubMed2000

Biopsychosocial treatment of defecation problems in children with anal atresia: a retrospective study.

In a retrospective study, we examined whether multidisciplinary treatment based on a biopsychosocial approach and carried out by a pediatric surgeon, a child psychologist, and a pediatric physiotherapist is successful in reducing defecation problems (incontinence and/or constipation) in children with operated anal atresia (AA) (mean age 6.9 +/- 4.01 years). A second question was whether this treatment is successful in young children aged 2-5 years. The multidisciplinary approach consisted of standard medical treatment and a behavioral program to teach children and their parents adequate defecation behavior including an adequate straining technique. Forty-three children aged 2-16 years were included: 27 boys and 16 girls with AA, of whom 26 had high or intermediate and 17 low AA. Besides continence and constipation, defecation behavior and straining technique were evaluated. The children improved significantly during treatment in all aspects of defecation. No differences in effect of treatment were found between young children (2-5 years) and older ones, so this treatment seems to be equally effective in both age groups. This study demonstrates that both somatic and behavioral factors contribute to the persistence of chronic defecation problems. It is concluded that treatment of these problems in patients with operated AA should include behavioral modification techniques.

Adolescent↗
PubMed2000

Histopathologic observations of anorectal abnormalities in anal atresia.

Over the years from 1992 to 1997, 41 anorectal malformations (ARM) with histopathologic alterations were investigated to determine which morphologic abnormalities of the distal rectum accompany ARMs. Three other cases showed normal neuromuscular morphology; 9 further cases could not be evaluated owing to scanty biopsies. All resected specimens were caudocranially coiled and cryostat cut at -20 degrees C into serial sections, which were stained with a lactic dehydrogenase, succinic dehydrogenase, nitroxide synthase, and acetylcholinesterase reaction as well as hemalum and sirius red. Ten low, 15 intermediate, and 10 high forms of anal atresia (AA) were studied. In addition, six cloacal abnormalities were investigated. In 7 cases (17%) (5 intermediate, 2 low AAs), the characteristics of Hirschsprung's disease were observed. Oligoneuronal hypoganglionosis of the myenteric plexus proximal to the anal floor was diagnosed in 7 AAs (12%). In 10 children with high-type AA and resection of 1-5 cm distal rectum and in all cloacal anomalies (n = 6) defects of the muscularis propria were seen in the rectal-atresia sac. These defects were characterized by hypoplasia of the circular-muscle layer and/or the internal anal sphincter (IAS). Intestinal neuronal dysplasia of the submucous plexus was most frequently observed (12%) in high-type AA. A correlation between innervation anomalies or anomalies of the muscularis propria and the type of fistula could not be seen. In conclusion, all cases with high-type AA and cloacal anomalies were characterized by anomalies of the muscularis propria and/or IAS but this was not the case in intermediate and low-type AAs. Anomalies of the enteric nervous system were diagnosed in 60% of AAs.

Anal Canal↗
PubMed2000

A case of Currarino triad with familial sacral bony deformities.

We describe a male patient presenting with Currarino triad: a recto-urethral fistula, sacral bony deformity, and a presacral teratoma. Clinical screening of his family revealed three additional cases with incomplete forms of this association. Cytogenetic findings in the patient and his mother were normal. This case suggests that the occurrence of an anorectal malformation together with a sacral bony deformity should raise a physician's index of suspicion for associated presacral tumors, and that screening of the patient's family members with sacral radiographs is necessary.

Anal Canal↗
PubMed1999

Pyloric atresia associated with epidermolysis bullosa, malrotation, and high anorectal malformation with recto-urethral fistula: a report of successful management.

Pyloric atresia (PA) is an uncommon anomaly that may be associated with many other congenital anomalies, the commonest of which is junctional epidermolysis bullosa (JEB). Most of the cases of PA associated with JEB (Herlitz syndrome) reported have been fatal. A case of PA associated with JEB, malrotation, and a high anorectal malformation with a rectourethral fistula, which was hitherto undescribed, was successfully managed at our institution.

Anus, Imperforate↗
PubMed2001

Restoration of fecal continence with chronic electrostimulation of gracilis muscle 17 years after a Pickrell's operation.

A 27-year-old woman who had undergone a Pickrell's operation at the age of 10 years, was observed for severe incontinence to solid and liquid stools. Physical examination and physiological tests revealed poor resting anal tone but a very good response of the transposed gracilis to percutaneous electrostimulation, which showed that the gracilis ability to contract was maintained in spite of 17 years of only occasional and unplanned muscular activity. Examination also demonstrated that the muscle had followed body growth during the patient's development. Restoration of continence by continuous electrostimulation of the gracilis muscle was then planned. To allow muscular resistance to this stimulation a fast-to-slow twitch fiber conversion was first obtained by low-frequency electrostimulation. A subcutaneous abdominal implant of a pulse generator connected to the gracilis by intramuscular platinum-iridium electrodes was carried out. After a period of muscular training, fiber conversion was achieved, and continuous electrostimulation led to complete restoration of continence with stable results at the 36 month follow-up evaluation. This case demonstrates that even such a long period of muscular inactivity does not affect the possibility of recovering a failed Pickrell's operation using electrostimulation. This easy and safe procedure can be applied to all previously failed graciloplasties provided that muscle contractility is maintained.

Adult↗