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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    European radiology 6 (1996), S. 704-706 
    ISSN: 1432-1084
    Keywords: Ovary, torsion ; Magnetic resonance imaging ; Adnexal torsion ; children
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Torsion of the adnexa can be the cause of abdominal pain. An immediate diagnosis is very important because early surgical intervention is the only way to save the ovary from necrosis. Torsion of a normal adnexa is rare, but occurs more frequently than is generally appreciated. If US findings are equivocal, MRI can provide additional information. In our case the MRI findings leading to the diagnosis of ovarian torsion were: (a) A medial ovarian mass existed with dislocation of the uterus to the affected side with hyperintense, cystic lesions on T2-weighted images at the periphery of the ovary. (b) Beaked protrusion of the mass continuing in a band-like structure connecting it with the uterus obviously represented the Fallopian tube. (c) Low and inhomogeneous signal intensity of the stroma on T1- and T2-weighted images and lack of gadolinium uptake were indicative of infarction.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 154 (1995), S. 893-895 
    ISSN: 1432-1076
    Keywords: Ascended testis ; Children ; Testicular biopsy ; Orchiopexy ; Human chorionic gonadotropin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Among 460 children who had an orchiopexy (ORP), we identified 72 children who had attended our institution 1–12 years earlier and in whom the testicular position had been specified. Of the 72 boys 19 were had ascended testes (26%). The age at ORP of the children with ascent of the testes was 7.0 years (1.8–14.0 years). Light and electron microscopy of 13 testicular biopsies taken at ORP, showed alterations of germ cells and sertoli cells, similar but less pronounced than alterations seen in congenital undescended testes. Conclusion A normally positioned testis may ascend into the inguinal region or upper scrotum and remain there fixed. This secondary cryptorchidism does not usually respond to human chorionic gonadotropin treatment and must be corrected by orchiopexy.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Pediatric surgery international 12 (1996), S. 38-43 
    ISSN: 1437-9813
    Keywords: Vesicoureteral reflux ; Color Doppler imaging-mode cystography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Vesicoureteral reflux (VUR) is common in children with urinary tract infections (UTI) and may result in renal scarring or reflux nephropathy. To date, the primary diagnostic tool has been voiding cystourethrography (VCUG). A new technique for evaluation of grade 1 and 2 VUR is described using color Doppler imaging-mode cystography (CDIMC): 77 children, aged 7 months to 14 years, were examined for VUR by CDIMC and standard VCUG. According to the established reflux sonography (US) using a real-time mode, all patients selected for this study had a normal urinary tract on conventional gray-scale US. We studied 154 ureters, and a total of 31 were found to be refluxing on CDIMC and 30 on VCUG. A positive sonogram was defined as visualization of Doppler signals from the bladder to the ureter during the course of bladder filling. Taking VCUG as the gold standard, we had ten false-positive findings. The false-positive rate of 18.5% may have been due to the shorter observation time of fluoroscopy. Comparison of the two methods shows CDIMC to be 70% sensitive with a specificity of 92% in the detection of VUR grade 1 and 2. To evaluate the incidence of asymptomatic low-grade VUR in a non-infected population, a second series of 38 children (19 males, 19 females) aged 3 to 15 years (mean 8.8 years) with normal urologic status and urine cultures were studied by color Doppler imaging mode (CDIM) for detection of asymptomatic low-grade VUR. Four children were found to have a unilateral refluxing ureter. The incidence of VUR in children with a normal urinary tract and no prior UTI was 10.5%. In conclusion, CDIMC can be used as a possible alternative to standard VCUG for the screening and follow-up of low-grade VUR. In addition, our study indicates that asymptomatic grade 1 and 2 reflux might be a physiological condition.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Pediatric surgery international 12 (1996), S. 38-43 
    ISSN: 1437-9813
    Keywords: Key words Vesicoureteral reflux ; Color Doppler imaging-mode cystography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Vesicoureteral reflux (VUR) is common in children with urinary tract infections (UTI) and may result in renal scarring or reflux nephropathy. To date, the primary diagnostic tool has been voiding cystourethrography (VCUG). A new technique for evaluation of grade 1 and 2 VUR is described using color Doppler imaging-mode cystography (CDIMC): 77 children, aged 7 months to 14 years, were examined for VUR by CDIMC and standard VCUG. According to the established reflux sonography (US) using a real-time mode, all patients selected for this study had a normal urinary tract on conventional gray-scale US. We studied 154 ureters, and a total of 31 were found to be refluxing on CDIMC and 30 on VCUG. A positive sonogram was defined as visualization of Doppler signals from the bladder to the ureter during the course of bladder filling. Taking VCUG as the gold standard, we had ten false-positive findings. The false-positive rate of 18.5% may have been due to the shorter observation time of fluoroscopy. Comparison of the two methods shows CDIMC to be 70% sensitive with a specificity of 92% in the detection of VUR grade 1 and 2. To evaluate the incidence of asymptomatic low-grade VUR in a non-infected population, a second series of 38 children (19 males, 19 females) aged 3 to 15 years (mean 8.8 years) with normal urologic status and urine cultures were studied by color Doppler imaging mode (CDIM) for detection of asymptomatic low-grade VUR. Four children were found to have a unilateral refluxing ureter. The incidence of VUR in children with a normal urinary tract and no prior UTI was 10.5%. In conclusion, CDIMC can be used as a possible alternative to standard VCUG for the screening and follow-up of low-grade VUR. In addition, our study indicates that asymptomatic grade 1 and 2 reflux might be a physiological condition.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1437-9813
    Keywords: Key words Hirschsprung's disease ; Intestinal neuronal dysplasia ; Hirschsprung-associated intestinal neuronal dysplasia ; Pull-through operation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Between 1991 and 1993, 106 newly diagnosed cases of Hirschsprung's disease (HD) were prospectively analyzed for the association of HD and intestinal neuronal dysplasia (IND) at ten pediatric surgical departments in central Europe. Hirschsprung-associated IND (HaIND) was found in 40% of cases. IND was disseminated in one-third and localized in two-thirds of the patients. Initial clinical symptoms were related to the length of the aganglionic segment, but not to the presence of HaIND. An enterostomy performed in 72 cases (67.9%) was located in a segment of pathologically innervated bowel in 50% of all cases, but in 72% of cases of HaIND. The proximal margin of the resected bowel showed pathological innervation in 44% of cases. Supplemental biopsies from the intestine (apart from diagnostic suction biopsies and biopsies at the enterostomy site) led to the first identification or definition of length of associated IND in 17.9% of cases. Postoperatively, the presence of long-segment aganglionosis or associated IND implied a delay in the restoration of normal defecation. Persistent constipation was found in 40% of patients with associated disseminated IND at follow-up at 6 months, compared to 20.6% in patients with isolated HD. These children needed secondary interventions more often than patients with associated localized IND or isolated HD. HaIND thus has clinical implications for the postoperative course if IND is disseminated.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1437-9813
    Keywords: Key words Sacrococcygeal teratoma ; Prognosis ; Functional impairment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract From 1976 to 1995, 23 children, 4 boys and 19 girls, were treated at our department for sacrococcygeal teratomas (SCT). Their records were analyzed retrospectively, considering age at operation, histopathology, recurrences, and long-term evolution. One died on the 1st day of life following tumor rupture with hemorrhagic shock without surgical intervention. All others were operated upon at a mean age of 4.2 days for those 19 (=82%) who were diagnosed in the neonatal period and whose histology proved benign. In the remaining 3 children, in whom tumor manifestation did not occur before 11 months, 13 months, and 10 years of age, respectively, histopathologic evaluation revealed 2 carcinomas and 1 yolk-sac tumor, and all 3 recurred. Overall, 5 patients died, the 1 mentioned above, 1 due to volvulus after laparotomy, and 1 from multiple associated congenital malformations. Two deaths were related to malignancy, whereby only 1 was a malignant teratoma diagnosed at the original operation. Eight children had recurrences, 2 were benign and 6 malignant, with 3 of the latter having been graded benign on histology of the primary tumor. Of the 18 surviving patients, 17 (93.5%) returned for clinical review following a standardized protocol. The average interval from the primary surgery was 12.3 years (range 3.5–22 years). Four had malignant tumors with a recurrence-free period of from 9 to 14 years; 5 (29.4%) had urinary or anorectal functional impairment. One child with a patulous anus presented with fecal soiling. Two reported nocturnal enuresis, 1 associated with perineal anesthesia. One had a neurogenic bladder with overflow voiding and bilateral third-degree vesicoureteral reflux. Second-degree reflux was found in the last patient. We conclude that follow-up after surgery for SCT should not only search for tumor recurrence but include the diagnosis and treatment of possible secondary urinary and/or fecal incontinence.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Pediatric surgery international 6 (1991), S. 28-31 
    ISSN: 1437-9813
    Keywords: Abdominal zipper ; Vena cava compression ; Intestinal edema ; Abdominal volume augmentation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract This is a case report of a 4-year-old child who developed protracted shock after complicated surgery for perforated appendicitis. An acute increase in intra-abdominal pressure led to compression of the inferior vena cava, reduced cardiac preload, and lowered cardiac output. Laparotomy with transient augmentation of the intra-abdominal volume using a Marlex mesh and zipper was succesfully used to overcome this life-threatening situation.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1437-9813
    Keywords: Bacterial translocation ; Portal vein occlusion ; Portal-jugular shunt ; Allopurinol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Bacterial translocation (BT) after ischemia and reperfusion of the gut has been reported. This study was performed to document BT after temporary portal-vein occlusion (PVO) and reperfusion. Male piglets (15–20 kg) were assigned to a control group (n = 6), a bio-pump group (n = 6), and an allopurinol group (n = 5). The portal vein was occluded in all animals for 30 min. The control group received no treatment. In the bio-pump group, during PVO a motor-driven portojugular shunt was used. In the allopurinol group, animals received 200 mg/m2 allopurinol IV before PVO. Portal and peripheral venous cultures and mesentric lymph-node cultures were taken before PVO and after 30 min of reperfusion. Blood samples for determination of malondialdehyde (MDA) were taken before laparotomy, before PVO, and after 5, 25, and 60 min of portal reperfusion. After 30 min of portal reperfusion, in the control group significant BT to the portal vein, peripheral veins, and liver occurred when compared with the bio-pump and allopurinol groups (P 〈0.05). Allopurinol pretreatment attenuated BT, but was not significant when compared with the control group. MDA, an indicator of oxygen-derived free radical-induced lipid peroxidation, increased significantly in the control and bio-pump groups (P 〈0.05) after 60 min of portal reperfusion and remained unchanged in the allopurinol group. These data suggest that significant BT and significant generation of oxygen-derived free radicals with subsequent lipid peroxidation occur after temporary PVO and reperfusion. A motor-driven portojugular shunt prevents BT but not be increase of lipid peroxidation. Pretreatment with allopurinol attenuates BT and lipid peroxidation.
    Type of Medium: Electronic Resource
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