Neuroblastoma in the newborn. A study of the Italian Neuroblastoma Registry

AIM

Presenting features, treatment and outcome of 134 newborns with neuroblastoma diagnosed over a 27-year period are described.

METHODS

Analyses were performed on the entire cohort and on patients distributed over three periods of diagnosis.

RESULTS

Twenty-seven tumours (20.1%) were detected prenatally. Localised disease prevailed (65.7%) with an increase of stage 1 patients over time from 18.8% to 46.5%. Disseminated disease accounted for 34.3% of tumours with only one stage 4 and 45 stage 4S. Five-year overall survival (OS) of the entire cohort was 88.3%. Five/88 patients with localised disease died, including three who died of complications (OS, 95.3%). The only stage 4 patient survived. Eleven/45 stage 4S patients died, including 7/18 symptomatic and 4/27 asymptomatic (OS, 74.1%).

CONCLUSION

The outcome of neuroblastoma in newborns is excellent. In localised tumours, surgery-related deaths outnumbered deaths due to disease. Symptomatic stage 4S patients were at greater risk of dying.

Risk management in pediatric surgery

PURPOSE

To present the experience documented over 1 year of analysis and quality control on surgical complications and organizational accidents.

METHODS

All children admitted during the study period at our Institution were included in the analysis, which consisted of four phases: (1) definition and standardization of perioperative diagnostic and therapeutic tracks; (2) staff education; (3) documentation and data implementation, and (4) "Morbidity and Mortality" audit.

RESULTS

Over a 1-year study period, 3,116 children were admitted to our Institution: 2,222 out of 3,116 (71.3%) children underwent a surgical procedure. A total number of 184 complications were recorded in 149 patients. One hundred and seventy-one (92.9%) complications occurred following a surgical procedure. Fifty-six out of 149 complicated patients (37.6%) required a re-operation. Thirty-five out of 184 (19%) complications were classified as organizational. Infection represented the most common complication. All cases of anastomotic dehiscence and perforation, bowel obstruction, and stoma malfunction required reintervention. None of the postoperative bleedings required a second surgical procedure.

CONCLUSION

Although a proper statistical comparison with literature complication rates is not feasible, our experience confirms the importance of quality-control audit in health care systems. Prolonged observation, long-term follow up, and comparison with previous results will represent our future goal.

Incidence of indwelling central venous catheter-related complications using the Sri Paran technique for device fixation in children with cancer

PURPOSE

Mechanical complications in tunneled indwelling central venous catheters (CVCs) often involve a risk of displacement. Fixation procedures are, therefore, of primary importance. We prospectively evaluated the incidence of CVC-related mechanical and infectious complications observed in devices fixated with the Sri Paran technique.

METHODS

All CVCs inserted in children with cancer at our Institution from October 2005 to January 2007 were prospectively monitored for device-related mechanical and infectious complications. The Sri Paran fixation technique was used in all cases. The complication rate per 1,000 days was calculated as 1,000 times the number of complications divided by the total number of catheter days.

RESULTS

Ninety-five CVCs were positioned in 84 children. The overall length of observation ranged between 41 and 482 days for a total of 18,618 catheter days. Mechanical complications occurred in 5% of the devices (specific rate 0.27); infections were observed in 6% of the devices (specific rate 0.32). No complications were observed during the first 30 days after CVC insertion.

CONCLUSIONS

The results, we obtained with the Sri Paran technique are extremely encouraging. Yet, randomized studies are required to prove these preliminary data.

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.

Long-term urologic outcome in patients with caudal regression syndrome, compared with meningomyelocele and spinal cord lipoma

BACKGROUND/PURPOSE

The long-term urologic outcome in a large series of patients with neural tube defects was evaluated.

METHODS

The following clinical parameters in 398 patients ranging from 1 to 37 years of age--69 with caudal regression syndrome (CRS), 244 with meningomyelocele (MMC), and 85 with spinal lipoma (SL)--were studied: congenital renal anomalies, renal function, vesico-ureteric reflux, upper tract dilatation, urodynamic pattern, and urinary continence.

RESULTS

Single kidney was much more frequent in CRS (20.3%), compared with MMC (1.2%) and SL (0%). Vesico-ureteric reflux was found in 37.7% of patients with CRS, 43.0% of MMC, and 21.2% of SL. Patients with CRS had a higher risk of impaired renal function (8.7%), compared with MMC (5.3%) and SL (1.2%). Neuropathic bladder was found in 61% of patients with CRS, 98% of MMC, and 42% of SL. Among them, clean intermittent catheterization and drugs allowed 30% of patients with CRS, 45% of MMC, and 71% of SL to be dry for more than 4 hours.

CONCLUSIONS

Diagnosis influences the urologic outcome in neural tube defect. In CRS, the incidence of renal agenesis and vesico-ureteric reflux was unexpectedly high. The risk of renal damage and, in those with neuropathic bladder, of urinary incontinence, was similar to patients with MMC.

Urinary diversion in infants with primary high-grade vesicoureteric reflux, urinary sepsis and renal function impairment

INTRODUCTION

General consensus on the optimal treatment of septic infants with primary high-grade vesicoureteric reflux (VUR) and renal function impairment has not been reached. Our study aims at evaluating the role of temporary urinary diversion.

MATERIALS AND METHODS

Twenty male infants, affected by sepsis and primary high-grade VUR, underwent urinary diversion in 1996-2001 because of estimated risk of renal function deterioration, due to non-compliance with the antibiotic treatment. Plasmatic creatinine clearance, ultrasonography, micturition cystography and scintigraphy were evaluated.

RESULTS

Creatinine clearance was abnormal in 13 infants on admission, in 10 after urinary diversion and in 6 after second surgery. Renal damage (focal or diffuse) was evident in 16 patients, without modifications after surgery. No patient developed urinary tract infections (UTI). Vesicostomy was done in 12 cases, ureterostomy in 8. Nephrectomy was performed in 3 cases with poor renal function, and ureteroneocystostomy in 17.

CONCLUSIONS

Urinary diversion in septic infants with high-grade VUR can represent an alternative approach to the conservative or surgical treatment in selected patients presenting risk of renal function impairment. This procedure allowed an easy management of UTI without worsening of renal function while waiting for a better anatomical status to perform reconstructive surgery.

Histological changes following two-step flap gastrocystoplasty in rats

INTRODUCTION

A gastric segment used to increase bladder capacity can undergo considerable changes over time, as can all intestinal segments implanted in the urinary tract and in contact with urine. This experimental study reports the differences between the histological alterations observed in the gastric patch transposed in the bladder both with its own pedicle and after deafferentation from the stomach.

MATERIALS AND METHODS

A group of 30 young male Sprague-Dawley rats underwent gastrocystoplasty. Survivors were divided into 3 groups: gastrocystoplasty alone (8 rats); gastrocystoplasty with vascular deafferentation at 15 days (7 rats), and at 2 months (8 rats). 5 rats were used as controls. Urinary pH was evaluated during a 6-month follow-up.

RESULTS

Histology showed that early devascularization hindered the fusion of the two mucosae in the junctional area but reduced papillary hyperplasia (p = 0.013) of the gastric mucosa. No changes were observed in urinary pH after patch devascularization.

CONCLUSIONS

Vascular deafferentation creates a gastric flap on the bladder which, even if it does not prevent urinary acidification, reduces the frequency of histologically detected changes susceptible for transformation into neoplasms.

Mechanical complications related to indwelling central venous catheter in pediatric hematology/oncology patients

Indwelling central venous catheters (CVC) are essential devices in the management of children with oncologic/hematologic diseases or following bone marrow transplantation. The authors report data on the mechanical complications observed in pediatric hematology/oncology patients, collected by a retrospective analysis of clinical records of 482 patients in whom 567 indwelling central venous catheters had been inserted from January 1992 to December 1998 at the G. Gaslini Institute. During the study period, 52 episodes of mechanical complications (9%) were observed: mechanical obstruction (24 episodes), catheter dislocation (13), problems related to catheter material (12), and accidental removal (3). In 25 cases removal and replacement of CVC was necessary for the treatment of complications, while medical treatment (thrombolytic-antithrombotic) was successful and well tolerated in 8. The study shows the importance of mechanical complications in children with indwelling CVC for hematologic or oncologic diseases. Moreover, the experience of administering a systemic low-dosage thrombolytic therapy demonstrates new prospects of reducing CVC replacement by restoring CVC viability.

Treatment of vesico-ureteric reflux in children with neuropathic bladder: a comparison of surgical and endoscopic correction

BACKGROUND/PURPOSE

Vesico-ureteric reflux (VUR) is a common problem in children with neuropathic bladder. Lesser-degree VUR may be manageable by intermittent catheterization or by anticholinergics, but higher grades usually require surgical treatment. If left untreated, two thirds of such patients may experience deterioration of the upper renal tracts. The aim of this study was to compare the results of the STING (Subureteric Teflon Injection) technique with surgical ureteric reimplantation as treatment for VUR in neuropathic bladder.

METHODS

From January 1981 to December 1996, 58 children with NB (81 ureters) were treated for VUR. STING and Cohen ureteroneocystotomy were performed in 40 and 41 ureters, respectively. Mean age was 4.5 years (STING) and 5.1 years (Cohen).

RESULTS

Twenty-nine of 40 refluxing ureters (72.5%) were cured by STING, whereas Cohen eradicated reflux in 39 of 41 ureters (95.5%). No complications were observed in either group. All the ureters in which STING failed were treated successfully by Cohen ureteroneocystostomy. The 2 ureters still refluxing after surgical reimplantation were cured successfully by a single STING. The mean follow-up was 6.8 years in the Cohen group and 4.8 years in the STING group. During follow-up, no recurrence was observed in patients cured by open reimplantation. In the STING group, 2 previously cured ureters showed recurrence of VUR: both were treated successfully by a further STING.

CONCLUSIONS

Open ureteral reimplantation is more effective than STING in correcting VUR in children with neuropathic bladder dysfunction. Nevertheless, the good success rate, the relative technical simplicity, outpatient nature, and rapid recovery point to STING as a safe and effective procedure for the initial treatment of VUR. Failure of STING does not preclude a successful open operation.

Pancreatitis caused by duodenal duplication

The authors present the investigations and surgical treatment of two cases of duodenal cystic duplication. Abdominal pain and gastroesophageal reflux were the most important symptoms and signs associated with an history of recurrent acute pancreatitis. Computed tomography scan, ultrasound examination, and cholangiography confirmed preoperatively the diagnosis, and a transduodenal surgical approach was carried out in both children. A simple marsupialization of the cyst was performed in the former, and a sphincterotomy with papillosphincteroplasty was associated in the latter. The diagnosis was confirmed by microscopy, and both the children are asymptomatic after a 14 and 18 months of follow-up. This report focuses on the importance of the cholangiopancreatography for every child presenting with recurrent, unexplained bouts of acute pancreatitis, and underlines the technical surgical aspects on the basis of the anatomic identification of the malformation.

Cervical lymphadenitis caused by nontuberculous mycobacteria in immunocompetent children: clinical and therapeutic experience

BACKGROUND

Cervical lymphadenitis is a frequent manifestation of nontuberculous mycobacteria (NTM) infection in immunocompetent children. Surgical excision, the treatment of choice, is often incomplete and may be difficult. A medical approach could reduce treatment morbidity.

METHODS

Systemic antibiotic therapy was administered to seven children for at least 6 months as treatment for cervical lymphadenitis due to NTM: rifabutin and clarithromycin in 4 cases; rifabutin, clarithromicyn, and ethambutol in 2 cases; rifabutin, amikacin, and cycloserine in 1 case.

RESULTS

All patients, six followed for a mean of 3 years and one for 6 months, were initially seen with regression of local signs of infection without relapse. Toxicity, likely due to rifabutin, was represented by neutropenia in three patients and yellow skin pigmentation in one patient.

CONCLUSIONS

Systemic antibiotic therapy was safe and effective in children with lymphadenitis due to NTM. This approach could represent a sound alternative or adjunct to surgery.

All mechanical low rectal anastomosis in children

PURPOSE

The aim of this study is to demonstrate the feasibility and usefulness of mechanical suturing in children for low rectal anastomosis.

METHODS

The study group includes 31 children operated on from January 1993 to July 1996 by the same senior surgeon, performing the modified Duhamel procedure for Hirschsprung's disease in 17 children, intestinal neuronal dysplasia in seven, and the Knight-Griffen procedure in seven pediatric patients with chronic ulcerative colitis.

RESULTS

In all the cases the technique of "viscero-synthesis" was performed using the mechanical stapler. A circular stapler has been used for the end-to-end and the end-to-side anastomosis between the anal canal or the back wall of the rectum with the pulled viscus, while a linear endoscopic stapler (GIA) has been used for the consolidation of the rectocolic wall in the modified Duhamel technique.

CONCLUSIONS

The results obtained demonstrate that the mechanical staplers in children are safe and effective in low rectal anastomosis, sparing operative time and reducing the risk of anastomotic dehiscence; however, the size of circular instruments limits its use in neonates and small infants.

Lung resection in pediatric patients

An evaluation of all pediatric patients with primary or secondary pulmonary disease operated upon from January 1993 to July 1996 by the same senior surgeon was carried out. The inclusion criterion was a lung resection in patients aged less than 14 years. Children were divided into two categories according to the neoplastic or non-neoplastic nature of their disease. In the first group a lobectomy was performed for primary lesions and wedge resection for secondary ones. In the second group lobar emphysema and cystic dysplasia were the major indications for lobectomy, while diagnostic wedge resections were performed for interstitial/infiltrative lesions. Several groups of techniques were identified according to the type of approach and the suture method. Video-assisted thoracoscopic surgery and a muscle-sparing approach were compared to classic posterolateral thoracotomy. The mechanical stapler-suturing method was compared to the manual suturing. Our results demonstrate the importance of mechanical suturing, particularly in decreasing anesthesia time and reducing the risk of dehiscence. The minimally invasive approach associated with mini-thoracotomy was particularly useful for patients with reduced oxygen saturation due to ventilatory and gas-exchange problems. The roles of staplers in lung parenchymal resection and minimally invasive procedures for improving the postoperative thoracic compliance of pediatric patients are stressed.

[Benign mediastinal teratoma with pericardial symptoms. The utility of echocardiography in diagnosis]

The authors describe the clinical case of a 21-year-old girl who was admitted to the hospital because of pericardial symptomatology. On admission, a transthoracic echocardiogram revealed moderate pericardial effusion and an anterior parenchimallike mediastinal mass, that extended as far as the main vessels and the anterior wall of the right ventricle. This report was subsequently confirmed by a computed tomography chest scan. Due to the rupture into the pericardial cavity, which was followed by considerable pericardial effusion, she was immediately taken to the operating room for pericardiocentesis and the decision was then made in order to excise the mass. The hystological diagnosis revealed "benign cystic mature teratoma of the mediastinum". The authors' literature data is included, and the article also emphasizes the importance of using echocardiograms in casualties in order to obtain a differential diagnosis of chest pain.

[Surgical implications of familial polyposis coli]

Surgical treatment of familial congenital polyposis (FCP) is deemed necessary as soon as diagnosis is obtained. The goals of any surgical procedure must be: removal of all adenomatous tissue, reliable prophylaxis of cancer, good quality of life. Among the different procedures (proctocolectomy with ileostomy, total colectomy with ileo-rectal anastomosis and postoperative endoscopic surveillance, ileo-rectal pull-through) we consider Soave ileo-endorectal pull-through as the treatment of choice. Between 1974 and 1993, 14 patients, 12 to 40 years old, underwent an ileo-endorectal pull-through (in 4 cases as secondary procedure after ileo-rectal anastomosis performed elsewhere). We had only two major complications, ileal perforation in one case and breakdown of ileo-rectal anastomosis in another case that needed permanent ileostomy. Continence is good in all patients (safe for the one with ileostomy) with an average of three bowel movements per day. Prophylaxis of cancer must be considered complete and permanent without need of surveillance.

[Intraoperative cholangiography in laparoscopic cholecystectomy. Our experience]

Cholangiography during conventional cholecystectomy has always been useful for anatomo-topographic study and for research of the stones of biliary tree. After a natural period of training the authors included the easy technique of cholangiography in laparoscopic cholecystectomy. The study was performed in 13 patients using Olsen's cannula with an internal a normal catheter for cholangiography. The catheterization of the cystic duct was performed in 85% of cases (11 patients), in the other 15% (2 patients) it was not possible to cannulate the cystic duct. Non complication. The mean duration of the study was 14 minutes. The authors describe the technique and conclude, after a brief discussion of the reports in the literature and personal experience, that peroperative cholangiography is an easy and safe procedure without risk and prevents the injuries to the biliary tract whose incidence is about 1.3%.

[Sepsis in children with malignant neoplasia, equipped with a Broviac-type venous catheter]

Indwelling central venous catheters obviate many problems in the care of children with malignancies, but they also are a well-known source of infection. We are reviewed the history of 584 Broviac catheters inserted from January 1984 to December 1991, in 475 children with cancer in order to assess the etiology of bacteremias, their association with neutropenia and their relationship with the presence of the catheters. The overall duration-time of the catheters, employed for blood tests, drug and blood infusions and parenteral nutrition, was 1-835 days (median 263, mean 186). Total catheter courses was 108.678 days. In this period 226 episodes of sepsis were observed in 180 patients: 157 in neutropenic patients and 69 in non neutropenic. Catheter related bacteremias were diagnosed in 65/226 episodes (29%): 23 (35%) were observed in neutropenic patients and 42 (65%) in non neutropenic (P < 0.005). Gram-positive pathogens were isolated in 28/65 (43%) episodes, Gram-negatives in 15/65 (23%), fungi in 9/65 (14%), and the remaining 13 (20%) were polymicrobial. In the last years we observed an increase of catheter related bacteremias due to Gram-negative rods no change was observed in pathogens causing catheters unrelated bacteremias. The high incidence of catheters related bacteremias in non neutropenic, non hospitalized patients, stress on the home-care of the catheters; a high level of suspicion of Gram-negative infections should be maintained in cancer patients with an indwelling central venous catheters.

[Diabetic foot. A clinical case]

Diabetic neuropathy may cause an alteration of the function of the muscles of the sole of the foot. This is at the origin of the chronic dislocation of the articular heads, mainly of the little metatarsal bones (neuro diabetes arthropathy), with formation of areas of pathological pressure. The tissues below being chronically under pressure are affected by trophic lesions called "plantar perforating disease". Recovery may be obtained by not exposing the injured area of the foot to pressure and through careful local therapy. This doesn't prevent disease from appearing again, even though some specially conceived soles are being used, aiming at a correct weight redistribution on the sole of the foot. The clinical case we are describing applies to a man affected by insulin dependent diabetes mellitus, with relapsing diabetic foot ulcers, in spite of him using a specifically designed sole. Such lesion is aggravated by a serious infection which, by gradually penetrating in depth, leads to osteomyelitis, affecting the 5th Metatarsal head. The bone area, dislocated by neuroarthropathy, was presumably responsible for the persisting plantar lesion. The amputation of this infected necrotic structure, has led to the overcoming of the serious septic problem. By eliminating the bone link responsible for the transmission of the pathological pressure, the plantar lesion the patient had been suffering from for a long time, has consequently disappeared.