Combined Minimally Invasive Treatment of Pyeloureteral Junction Obstruction and Primary Obstructive Megaureter in Children: Case Report and Literature Review

INTRODUCTION

In children, the association of ipsilateral pyeloureteral junction obstruction (PUJO) and ureterovesical junction obstruction (UVJO) is a rare malformation with a non-standardized treatment. We report a case of PUJO and UVJO treated by a combined minimally invasive surgical treatment to resolve the double urinary obstruction. The current literature was also reviewed.

CASE REPORT AND REVIEW

A two-month-old boy, without antenatal and postnatal signs of urinary tract anomalies, was hospitalized presenting right hydronephrosis, perirenal fluid effusion, and ascites. An acute pelvic rupture was suspected, and a retrograde pyelogram was performed, showing a primary obstructive megaureter (POM) associated with a corkscrew pyeloureteral junction. The impossibility to place a double J catheter through the pyeloureteral junction led us to achieve percutaneous nephrostomy and an abdominal drain placement. Three months later, the patient underwent a combined high-pressure balloon ureterovesical junction dilation and retroperitoneoscopic Anderson Hynes one-trocar-assisted pyeloplasty (OTAP). The literature search identified 110 children experiencing double urinary tract obstruction. All authors agreed on the difficulty to diagnose both obstructions preoperatively, but there is still no consensus on which obstruction should be relieved earlier, because the alteration in urinary vascularity during a double surgery could damage the ureter.

CONCLUSIONS

The simultaneous occurrence of UPJO and UVJO is rare, with a challenging diagnosis. Prompt identification and timely surgical intervention are crucial to mitigate the risk of renal function loss attributable to obstruction and infection. Drawing from our expertise and the analysis of the existing literature, we propose employing a simultaneous double minimally invasive strategy in order to optimize the preservation of ureteral vascularity. This approach entails performing a minimally invasive pyeloplasty for the PUJ and utilizing high-pressure balloon dilatation for the UVJ.

Preoperative anxiety management in children. Benefits of humanoid robots: an experimental study

Objective

The purpose of this study was to determine whether the use of a humanoid robot (Estrabot) could reduce preoperative anxiety levels in children.

Methods

An experimental study was conducted at Azienda Ospedaliero Universitaria delle Marche Hospital, involving the Pediatric Surgery ward and the Operating Room (OR). Patients aged between 2 and 14 years who underwent minor surgery were included. The Instruments used were the Children's Emotional Manifestation Scale to evaluate anxiety levels, and Estrabot, a humanoid robot that interacts with people. Medical records between April and May 2023 were analyzed and the data was anonymous. The level of anxiety is extrapolated in Pediatric Surgery during the administration of oral pre-medication, and in the Operating Room, during the induction of anesthesia. Patients were divided into an intervention group treated with Estrabot, and a control group without a robot.

Results

The population consists of 60 patients (86.7% male) with a median (IQR) age of 6 (4-8) years. The median (IQR) anxiety score during premedication was 7 (5-11), while the median (IQR) anxiety score during anesthesia was 6 (5-10). A significantly lower level of anxiety was reported in the Estrabot group. Patients in the Estrabot group had significantly lower anxiety levels in different age groups.

Conclusion

A humanoid robot can reduce preoperative anxiety levels in children during premedication and the induction of anesthesia.

Robotic approach to the uretero-vesical junction in children: An international multicentric retrospective study

BACKGROUND

Robot-assisted approach to UVJ is getting more and more used in pediatric patients.

METHODS

In this retrospective study 26 patients affected by nephro-urological malformations, robotic-surgically treated from 2016 and 2021 at 3 Pediatric Surgery Department were included: 3 (11.5%) primary obstructive megaureter, 2 (7.7%) dysplastic kidneys, 3 (11.5%) duplex collecting system, 18 (69.2%) primary vescico-ureteral reflux (VUR).

RESULTS

Mean age at surgery was 6 years old. 22 (84.6%) underwent Lich Gregoire extravesical ureteral reimplantation, 4 (15.4%) total nephroureterectomy. Mean operative time was 230 min. No conversions or intraoperative complications. Median hospital stay was 4 days. There were 4 (15.38%) postoperative complications: 3 (11.54%) persistent VUR and 1 (3.84%) refluxing megaureter. 2 (7.7%) redo-surgery.

CONCLUSIONS

Robotic Surgery should be considered a safe and effective technique for treatment of UVJ anomalies in children, because it firstly allows surgeons to approach both upper and lower ureteral ends without modifying trocars' placement.

Pyeloplasty in Children with Ureteropelvic Junction Obstruction and Associated Kidney Anomalies: Can a Robotic Approach Make Surgery Easier?

BACKGROUND

Robot-assisted pyeloplasty is widely used in pediatric surgery because of its well-known advantages over open or laparoscopic surgery. The aim is to explore our experience and evaluate the achievements we have made.

METHODS

We evaluated patients undergoing robotic pyeloplasty from January 2016 to November 2021, including those who presented with a ureteropelvic junction obstruction associated with other anomalies of the kidney. The parameters examined were: age, weight, associated renal malformations, conversion rate, operative time, and intra- and postoperative complications.

RESULTS

Of 39 patients, 7 (20%) were included, of whom 5 (71%) were male and 2 (29%) were female. The mean age at surgery was 84 months (range 36-180 months), and the mean weight at surgery was 24.4 kg (range 11-40 kg). In five (71%) patients the ureteropelvic junction obstruction (UPJO) was left-sided and in two (29%) it was right-sided. In four (57%) cases, UPJO was associated with a horseshoe kidney, right-sided in one (25%) patient, and left-sided in the other three (75%). A 180° rotation of the kidney was present in one (14%) patient. Nephrolithiasis was present in two (29%) patients. The mean operative time was 160 min (range 140-240 min). The average bladder catheter dwell time was 1 day (range 2-3 days), while the average abdominal drainage dwell time was 2 days (range 2-4 days). The mean hospitalization time was 4 days (range 3-9 days). On average, after 45 days (range 30-65) the JJ ureteral stent was removed cystoscopically. No intraoperative complications were reported, while one case of persistent macrohematuria with anemia requiring blood transfusion occurred postoperatively.

CONCLUSIONS

Ureteropelvic junction obstruction might be associated with other congenital urinary tract anomalies such as a duplicated collecting system, horseshoe kidney, or pelvic kidney. These kinds of malformations can complicate surgery and require more attention and accuracy from the surgeon. Our experience shows that, with regards to the robotic learning curve required for pyeloplasty, the treatment of the ureteropelvic junction in these situations does not present insurmountable difficulties nor is burdened by complications. The application of robot-assisted surgery in pediatric urology makes difficult pyeloplasties easier.

Antenatal Diagnosis and Management of Fetal Intestinal Volvulus: Case Series and Literature Review

Fetal intestinal volvulus is a rare condition that can lead to hemorrhage, bowel necrosis, and urgent surgical treatment after birth. Thus, prompt diagnosis and treatment are essential to avoiding fetal or neonatal demise. Prenatal ultrasound is a keystone tool in the diagnostic course. However, sonographic findings tend to be non-specific, with limited understanding of the pathophysiology behind their atypical presentation. With a literature review and a case series, we aim to optimize the antenatal diagnosis and management of this rare but life-threatening condition. Six cases from our institution were retrospectively analyzed over 12 years. A literature review was conducted until December 2022. A total of 300 articles matched the keyword "Fetal volvulus", and 52 studies were eligible for the review. Our 6 cases are added to the 107 cases reported in the literature of fetal intestinal volvulus with antenatal ultrasound assessment and without associated gastroschisis or omphalocele. Several prenatal symptoms and ultrasound markers, even if not specific, were more frequently reported. Different experiences of management were described regarding follow-up, the timing of delivery, the mode of delivery, and surgery outcomes. This paper highlights the importance of suspecting and assessing fetal volvulus at routine ultrasound scans, describing the most frequent antenatal presentations and management in order to improve fetal and neonatal outcomes.

Pneumovesicoscopic management of bladder neoplasms in children: three case reports

Urothelial bladder neoplasms (UBN) are uncommon in children and are poorly understood. Their management is contentious, and there are currently no pediatric guidelines available, making it difficult to envision a surgical approach that can be defined as the gold standard for the treatment of these diseases. Pneumovesicoscopy, which has already been used to treat other urological diseases, could be a promising treatment option for selected cases of this group of pathologies. We present our experience with three pediatric UBN cases in which pneumovesicoscopy was used for complete excision of a perimeatal papilloma in two cases and biopsy of a botryoid rhabdomyosarcoma in one. The pneumovesicoscopic approach, in our experience, provided a viable alternative technique for the management of selected cases of UBN.

Transumbilical laparoscopic-assisted appendectomy <em>versus</em> laparoscopic appendectomy in children: a single center experience

Laparoscopic Appendectomy (LPSA) is the first choice for appendectomy in pediatric surgery. Trans-Umbilical Laparoscopic Assisted Appendicectomy (TULAA) is another used technique. We compared both these procedures used for the treatment of acute appendicitis. The study was conducted between January 2019 to December 2020. Patients were divided into two groups: LPSA and TULAA groups. The collected data were: operative time, number of conversions, time of canalization and hospital stay. A total of 181 patients were included: 73 were kept in the LPSA and 108 in the TULAA group. Mean operative time was 70.9 minutes (range 45-130 min) for LPS and 56.4 (30-145 min) for TULAA group (p <0.0001). Complications rate showed no statistically significant difference between both the two groups. However, conversions showed a statistically significant difference (p=0.04). Both techniques showed similar results. TULAA technique takes a significantly shorter operating time. The selection between LPSA and TULAA techniques depends on the experience of the surgeon's work and the personal laparoscopic learning curve. In our experience LPSA was a useful technique to improve the laparoscopic skill of the pediatric surgery residents.

Pediatric robotic surgery: issues in management-expert consensus from the Italian Society of Pediatric and Neonatal Anesthesia and Intensive Care (SARNePI) and the Italian Society of Pediatric Surgery (SICP)

BACKGROUND

Pediatric robotic-assisted surgeries have increased in recent years; however, guidance documents are still lacking. This study aimed to develop evidence-based recommendations, or best practice statements when evidence is lacking or inadequate, to assist surgical teams internationally.

METHODS

A joint consensus taskforce of anesthesiologists and surgeons from the Italian Society of Pediatric and Neonatal Anesthesia and Intensive Care (SARNePI) and the Italian Society of Pediatric Surgery (SICP) have identified critical areas and reviewed the available evidence. The taskforce comprised 21 experts representing the fields of anesthesia (n = 11) and surgery (n = 10) from clinical centers performing pediatric robotic surgery in the Italian cities of Ancona, Bologna, Milan, Naples, Padua, Pavia, Perugia, Rome, Siena, and Verona. Between December 2020 and September 2021, three meetings, two Delphi rounds, and a final consensus conference took place.

RESULTS

During the first planning meeting, the panel agreed on the specific objectives, the definitions to apply, and precise methodology. The project was structured into three subtopics: (i) preoperative patient assessment and preparation; (ii) intraoperative management (surgical and anesthesiologic); and (iii) postoperative procedures. Within these phases, the panel agreed to address a total of 18 relevant areas, which spanned preoperative patient assessment and patient selection, anesthesiology, critical care medicine, respiratory care, prevention of postoperative nausea and vomiting, and pain management.

CONCLUSION

Collaboration among surgeons and anesthesiologists will be increasingly important for achieving safe and effective RAS procedures. These recommendations will provide a review for those who already have relevant experience and should be particularly useful for those starting a new program.

Robotic Surgery: Is There a Possibility of Increasing Its Application in Pediatric Settings? A Single-Center Experience

Introduction: Robotic surgery has shown explicit benefits and advantages in adults, but it is not yet strongly established in the pediatric population, even though its popularity is increasing, especially in the urologic field. Materials and methods: In this article we present our experience with the Da Vinci System (SI first and XI nowadays) at our pediatric institution in order to analyze our progress over the years. We considered all patients from the start of the robotic surgery program in 2016 until the end of 2021, dividing them into general abdominal surgery and genitourinary surgery. Analyzed data were the patient’s demographic, details of surgery, and intra and post-operative complications. Results: The total number of patients (pts) included in this study was 76, of whom 40 (52%) were male and 36 (48%) were female. The mean age at surgery was 90.9 months (range 10–207 months), and the mean weight at surgery was 29.3 kg (range 9.5–68 kg). There were 18 general abdominal robotic surgeries and 58 genitourinary robotic surgeries performed. The most performed surgeries in these two categories were fundoplication for gastro-oesophageal reflux disease (11%) and Anderson–Hynes pyeloureteroplasty. The mean operative time was 224.2 min (range 72–530 min): the mean times in the two groups (general abdominal surgery and genitourinary surgery) were 165 min (range 84–204 min) and 194 min (range 95–360 min), respectively. A total of four (5%) minor complications were reported. The total conversions were two (2.6%) and the mortality rate was 0%. Conclusions: Pediatric robotic surgery is a field of considerable interest and it is rapidly expanding. In our experience, it is evident how the learning curve has increased gradually, but steadily, allowing us to advance from standardized surgery, such as fundoplication and pieloplasty, towards a more technically complex one, achieving the same good results. We believe that robotic surgery is very respectful of tissues and feasible, especially for reconstructive surgery. For these reasons, it could become of common use also in the pediatric population, overcoming impediments such as excessive cost and the lack of pediatric instruments, in order to be able to treat children with a progressively lower age and weight.

Paraovarian cystoadenofibroma: an unusual finding in two adolescent twin sisters

BACKGROUND

The presence of a rare lesion for pediatric population, encountered in twins, as far as we know, is an exceptional event. The event made the management of a pathology, for which there are no guidelines in the pediatric field, even more delicate.

CASE REPORT

Two twin sisters came to our attention, a short time after each other, due to the presence of a voluminous abdominal mass. After complete resection, the histological diagnosis was that of a paraovarian cystoadenofibroma.

DISCUSSION

In pediatric surgery being minimally invasive is mandatory. However in selected cases the only objective, especially speaking of pediatric patients, ais to be radical and to protect the adnexal structures.

Urology in Pediatrics

Pediatric urology has been developed by many pediatric urologists and pediatric surgeons from all over the world [...].

Pediatric Surgical Care During the COVID-19 Lockdown: What Has Changed and Future Perspectives for Restarting in Italy. The Point of View of the Italian Society of Pediatric Surgery

BACKGROUND

The coronavirus disease 2019 (COVID-19) time exacerbated some of the conditions already considered critical in pediatric health assistance before the pandemic. A new form of pediatric social abandonment has arisen leading to diagnostic delays in surgical disorders and a lack of support for the chronic ones. Health services were interrupted and ministerial appointments for pediatric surgical healthcare reprogramming were postponed. As a result, any determination to regulate the term "pediatric" specificity was lost. The aim is, while facing the critical issues exacerbated by the COVID-19 pandemic, to rebuild future perspectives of pediatric surgical care in Italy.

METHODS

Each Pediatric Society, including the Italian Society of Pediatric Surgery (SICP), was asked by the Italian Federation of Pediatric Associations and Scientific Societies to fill a questionnaire, including the following the main issues: evaluation of pre-pandemic criticalities, pediatric care during the pandemic and recovery, and current criticalities. The future care model of our specialty was analyzed in the second part of the questionnaire.

RESULTS

Children are seriously penalized both for surgical treatment as well as for the diagnostic component. In most centers, the pediatric surgical teams have been integrated with the adult ones and the specificity of training the pediatric operating nursing is in danger of survival. "Emotional" management of the child is not considered by the general management and the child has become again an adults patient of reduced size.

CONCLUSION

A new functional pediatric surgical model needs to be established in general hospitals, including activities for day surgery and outpatient surgery. To support the care of the fragile child, a national health plan for the pediatric surgery is required.

COVID-19 Can Cause Severe Intussusception in Infants: Case Report and Literature Review

COVID-19 may cause intussusception in infants. We report on a case of severe ileo-colic intussusception in an infant with COVID-19 who required an ileo-colic resection. A literature review revealed 9 other cases with COVID-19 and intussusception. In this article, we will discuss the management and treatment of the first reported case of intussusception associated with COVID-19 in Italy.

Thoracoscopic excision of asymptomatic antenatally diagnosed mediastinal bronchogenic cysts: A case report

Bronchogenic Cysts (BCs) are benign congenital malformations commonly located in the mediastinum. In recent years the development of antenatal diagnosis has changed the BCs management allowing an earlier minimally invasive approach. We report a case of an asymptomatic 8-months-old girl with antenatal diagnosis of subcarinal posterior mediastinal BC. Thoracoscopic excision of the cyst was successfully performed. The management of antenatally diagnosed BCs is discussed. Thoracoscopic treatment of BCs is safe and effective with the advantage of a reduced morbidity compared to thoracotomy.

Dog bite injuries in a tertiary care children's hospital: A seven-year review

BACKGROUND

Dog bites are a major cause of traumatic injury in children. The aim of this study was to determine the experience, management, and outcome of dog bite injuries in our department.

METHODS

We retrospectively reviewed the clinical records for 127 patients (mean age 7.15 ± 4.24 years, range 1 to 17 years; 68 males) affected by dog-related injuries, from 2012 to 2018. Characteristics of patients and dogs, type and severity of injuries, circumstances of the accidents, treatment and outcome were analyzed.

RESULTS

Of 141 wounds, 73 (51.8%) affected the head and neck, 62 (44%) the limbs, and six (4.2%) affected the trunk. According to the Mcheik classification, 107 lesions (75.9%) were stage 1, 26 (18.4%) stage 2, and eight (5.7%) stage 3. Seventy-eight percent of the cases involved known dogs. The breed of the dog was recorded in 62/127 cases (48.8%) and the most common were mongrels (23/62, 37.1%). Seventy-five percent of the attacks occurred during spring and summer. All patients underwent antibiotic prophylaxis and immediate surgical repair. Wound infection was observed in two patients. Three unsightly scars required rectification, with good cosmetic results in all cases.

CONCLUSIONS

Our results are consistent with previous data showing that the typical dog-related injury occurs from a known dog, during spring and summer, and in younger boys, who are frequently exposed to head and neck wounds. Our experience showed the feasibility and safety of primary repair and antibiotic prophylaxis in all patients, with very low incidence of infection and good cosmetic results.

Necrotizing pneumonia among Italian children in the pneumococcal conjugate vaccine era

BACKGROUND

Necrotizing pneumonia (NP) is a severe complication of community-acquired pneumonia. The impact of 13-valent pneumococcal conjugate vaccine (PCV13) on the epidemiology of NP in children has not been assessed.

PATIENTS AND METHODS

Medical records of children less than 18 years admitted with NP to two pediatric hospitals in Italy between 2005 and 2019 were reviewed. The following four periods were defined: 2005-2010 (pre-PCV13), 2011-2013 (early post-PCV13), 2014-2016 (intermediate post-PCV13), and 2017-2019 (late post-PCV13).

RESULTS

Forty-three children (median age, 44 months) were included. Most of them (93%) were previously healthy. No differences in age, sex, season of admission, comorbidity, clinical presentation, or hospital course were identified between pre-PCV13 and post-PCV13 periods. A significant decrease in the rate of NP-associated hospitalizations was found between the early (1.5/1000 admissions/year) and the intermediate (0.35/1000 admissions/year) post-PCV13 period (p = .001). An increased trend in admissions was found thereafter. Streptococcus pneumoniae was the most common agent detected in both periods (pre-PCV13: 11/18, 61%; post-PCV13: 13/25, 52%). Serotype 3 was the most common strain in both periods (pre-PCV13: 3/11, 27%; post-PCV13; 4/13, 31%). There were no changes in the etiology over time, but most patients with Streptococcus pyogenes or Staphylococcus aureus infection were admitted during the post-PCV13 period.

CONCLUSIONS

The hospitalization rate for NP in children decreased a few years after the implementation of PCV13 immunization in Italy. However, an increased trend in admissions was found thereafter. S. pneumoniae was the most frequent causal agent in both pre- and post-PCV13 periods. Pneumococcal serotypes were mainly represented by Strain 3.

Robotic Excision of the Vagina in a 46 XX DSD Male Patient. First Pediatric Report

The Disorders of Sex Differentiation (DSD) represent a wide range of congenital anomalies of the genitalia. Surgical treatment of these cases may become a challenge. We present a case of a 16-year-old boy with 46 XX DSD, SRY negative, presented with persistent dribbling incontinence, recurrent UTI and perineal pain. Past medical history included right orchiectomy, laparoscopic excision of uterus, fallopian tubes and left streak gonad at another institution at the age of 2 years. The native vagina was left in place. VCUG confirmed the presence of the residual vagina (8 cm in maximum length), connected with the bulbar urethra. Robotic-assisted laparoscopy of the vagina was performed with satisfying short and long-term results.

Combined treatment of ureteropelvic junction obstruction and renal calculi with robot-assisted laparoscopic pyeloplasty and laser lithotripsy in children: Case report and non-systematic review of the literature

OBJECTIVE(S)

The incidence of urinary tract stone disease is steadily increasing in both adult and paediatric populations. This condition develops due to different factors: dietary or metabolic alterations, infection, and congenital anatomic malformations. Standard indications and treatments for children are analogous to the ones indicated for adults. Extracorporeal shock wave lithotripsy, ureterorenoscopy and percutaneous nephrolithotomy (PCNL) should be preferred to more invasive techniques. Moreover, the introduction of laparoscopic and robot-assisted laparoscopic approaches have improved surgical outcomes, lowering the bleeding risk with higher stone-free rates, even in complicated cases. Despite these well-known improvements, there are few reports regarding laparoscopic robot-assisted management for urinary tract stone disease in paediatric patients under the age of 10, especially with concomitant treatment of ureteropelvic junction obstruction and multiple calyceal stones.

PATIENT AND METHOD(S)

A 4-year-old child was referred for recurrent right abdominal flank pain, macroscopic haematuria and a previous history of urinary tract infections. A computed tomography of the abdomen showed right ureteropelvic junction obstruction associated with multiple unilateral stones located in the renal pelvis and in the interpolar renal calyces. Due to its complexity, we held a multidisciplinary meeting with paediatric surgeons and nephrologists to determine optimal treatment. As a result, a combined robot-assisted laparoscopic pyeloplasty (LP) and renal calculi holmium laser lithotripsy using a digital flexible ureteroscope through an abdominal robotic trocar was performed. No post-surgical complications were recorded, and the patient was discharged within 48 h following surgery. At subsequent regular follow-up examinations over a period of 24 months, no signs of recurrence were detected for both ureteropelvic junction obstruction and stone disease.

RESULT(S)

Robot-assisted LP with concomitant laser lithotripsy is a reasonable treatment option for designated young paediatric patients with challenging ureteropelvic junction obstruction complicated by urolithiasis, especially in cases where stones are not amenable with standard procedures.

Meckel's diverticulum perforation in a newborn positive to Sars-Cov-2

The health emergency linked to the Sars-Cov-2 infection represented an absolutely new problem for all health professionals. In particular, the information regarding the spread of the virus in the pediatric field and its manifestations are still incomplete. In this paper we present a case of neonatal infection which, as far as we know, represents one of the few published cases and which occurred in a patient who came to our attention for acute abdomen from intestinal perforation. The perforation was caused by Meckel's diverticulum, an event considered infrequent in the first year of life and almost exceptional in the neonatal period. This case required particular management, putting pediatric surgeons in front of new and difficult to solve problems. New onset clinical events, such as this one described, represent an opportunity for sharing useful data for the creation of universal protocols for the management of patients with problems that are becoming common and of which little is known.

Features of microvessel density (MVD) and angiogenesis inhibitors in therapeutic approach of hepatocellular carcinoma (HCC)

OBJECTIVE

The curative hepatocellular carcinoma (HCC) therapy was traditionally based on surgical or loco-regional ablation approach. However, HCC is a solid tumor characterized by a highest level of vascularization; therefore, angiogenesis inhibitor could play a pivotal role in the pharmacological therapeutic approach. Despite the low number of approved drugs, a wide range of multi-kinase and MET inhibitor is currently being evaluated in phase II and III study. In this review, we described all the drugs that have shown efficacy in recently and ongoing trials. Moreover, the immunotherapy represents a recent challenge in the HCC treatment. The strategy based on the production of multi-epitope, multi-HLA peptide vaccine naturally processed and presented on primary tumor tissues of HCC patients. A further upgrade of cancer vaccine could be represented by the combination of metronomic chemotherapy and checkpoint inhibitors.

Individualized robotic organ-sparing surgery in a paediatric case of renal perivascular epithelioid cell tumour

BACKGROUND

Perivascular epithelioid cell tumours (PEComas) represent a rare group of mesenchymal tumours with an unpredictable outcome. They are usually observed in middle-aged women whilst they are very rare in children, with limited cases described. Due to the rare anatomical location in kidneys, a correct diagnosis and treatment is really challenging.

METHODS

We observed and treated a case of kidney's PEComa in a 14-year-old boy.

RESULTS

An individualized approach based on anatomical (3D CT-reconstructions) and histopathological (US-guided preliminary biopsy) features lead us to perform a successful robotic-sparing surgery enabling the preservation of two-thirds of the kidney involved.

CONCLUSIONS

A meticulous preoperative planning in selected patients can lead to a minimally invasive approach even in some paediatric kidney's neoplasms.

Isolated fallopian tube torsion in pediatric age: An Italian multicenter retrospective study

PURPOSE

The purpose of this study was to quantify the experience of five Italian centers on the diagnosis and management of isolated fallopian tube torsion (IFTT) in children.

METHODS

We retrospectively reviewed the data of 20 patients aged 1-16 years of age with surgically diagnosed IFTT between 1991 and 2017 from five Italian centers of pediatric surgery. We analyzed common presenting signs, symptoms, and radiographic findings, as well as surgical interventions to describe management offering further insight into the diagnosis and treatment of this rare entity.

RESULTS

Twenty cases of IFTT were collected. Median age was 13.1 years. Menarche was present in 14 cases. A clinical history of abdominal pain was present in 13 patients, whereas in 7 patients the clinical picture was an acute abdomen. Ultrasonography was the first diagnostic examination in 16 cases. Surgical approach was by laparoscopy in 16 cases and laparotomy in 4 cases. In 11 patients IFTT was associated with another pathologic condition. In 7 of the remaining 9 IFTT without pathologic association, the girls played sports. Salpingectomy was performed in 13 patients and de-torsion in 7.

CONCLUSIONS

IFTT is a rare condition that seems to occur in younger adolescents. Vague clinical presentation contributes to low preoperative suspicion. IFTT should be considered in girls with abdominal pain who practice sports with sudden body movements. Preoperative suspicion may be increased based on radiographic findings of an enlarged tubular/cystic structure with adjacent normal ovary. Conservative management is controversial but could be preferred in order to provide the best option for future fertility of these girls.

TYPE OF STUDY

Treatment Study (Retrospective Study) - Level IV.

Functional constipation or redundancy of the colon?

OBJECTIVES

Constipation is a common problem in children, and most of the time, the cause is defined as functional. Our hypothesis is that children with functional refractory constipation had anatomic alterations of the colon.

METHODS

All children with chronic refractory constipation who visited our centre underwent accurate clinical examination, contrast enema (CE), anorectal manometry (ARM) and rectal suction biopsies (RSB). In case of functional constipation, three operators measured the size of the colon using radiograms and calculated the ratio based on the width of the second lumbar vertebra. The measurements carried out were compared with those reported in the literature on patients of the same age without constipation.

RESULTS

Over a period of 24 months, 69 patients with chronic refractory constipation, aged between 1 and 14 years, visited our department. A CE was performed on 67, and 2 were excluded because of anal stenosis. Sixty-five underwent anorectal manometry. Rectal suction biopsies were needed in 14 children, and 2 of them were found to have colonic aganglionosis. After a complete evaluation, 57 (82.61%) patients were diagnosed having functional constipation. By comparing the data of the patients with those of normal children reported by the other authors, we found that none of the measurements was statistically significant except for the rectosigmoid length: the mean value in one-year-old patients was 19.03 vs. 9.75, and in older children, it was 19.46 vs. 9.59.

CONCLUSIONS

Recognizing an anatomic anomaly in patients suffering from functional constipation is important for specific treatment, especially when the ratio (rectosigmoid length/L2) is higher than 15.

Prospective evaluation of lung function in children with parapneumonic empyema

RATIONALE

Prospective studies that evaluated the outcome of childhood empyema are limited.

OBJECTIVE

To compare the outcome of pulmonary function in children with empyema.

PATIENTS AND METHODS

Children discharged with a diagnosis of empyema underwent a longitudinal study including measurement of pulmonary function and radiographic imaging.

RESULTS

The population consisted of 39 patients, 24 males, and 15 females; with a median age of 4.6 years. Etiology was defined in 20/39 patients, and predominant microorganism was Streptococcus pneumoniae (19/20 isolates). Chest tube drainage with or without fibrinolytic agents was the primary intervention in 25 children. Video-assisted thoracoscopic surgery was performed in 14 and 5 children as primary and secondary intervention, respectively. Thirty-five children completed the lung function follow-up. At first follow-up visit, 5 out of 17 children able to perform spirometry (initially collaborating children) had normal tests, and 12 had mild-to-moderate defects of lung function that returned to normal over 2-57 months. Eighteen children unable to perform spirometry at first follow-up visit (initially non-collaborating children) had normal tests when they were evaluated 5-78 months postdischarge. At the end of the follow-up, all patients had normal lung function. Time to normalize did not differ between groups receiving different treatments (initially collaborating children, P = 0.064; initially non-collaborating children P = 0.223). Three previously healthy children had recurrent cough, and all children had normal chest radiographs aside from pleural thickening.

CONCLUSIONS

The respiratory outcome in children with empyema is generally good and is not influenced by the type of intervention.

How replace the gastrostomy tube in children with extremely compromised general conditions

The percutaneous endoscopic gastrostomy is the best technique to use in case of children requiring long-time enteral nutrition. The first replacement of the tube is easy in most of the patient, but this step can be extremely problematic in patients with compromised general conditions. The authors report their experience in some cases. Two boys with endoscopic gastrostomy had a deterioration in the general conditions, when replacing the probe, these conditions contraindicated anaesthesia for which the "cut-and-push" technique was adopted in a patient with heart malformation and a local anaesthetic in a neuropathic patient. Both the boys died a few days after this procedure. In our opinion, in children who are not using anaesthesia to reposition the gastrostomy probe, it is best to continue feeding through the nasogastric probe.

Characterization of Follicular Atresia Responsive to BPA in Zebrafish by Morphometric Analysis of Follicular Stage Progression

Bisphenol A is an industrial chemical compound, pervasively polluting the environment and diet, classified as an endocrine disruptor because of its interference effects on the endocrine system. In zebrafish, BPA exposure induces follicular atresia. To acquire knowledge on this atretic effect, using a qualitative and quantitative histomorphological approach, we studied zebrafish ovarian follicular stage development in response to low BPA concentrations. Results show that BPA interferes with follicular progression by affecting the previtellogenic and vitellogenic phases. In particular, BPA exposure (i) increases follicular recruitment by acting on primary stage follicles, (ii) forces the follicular transition from stage III to stage IV producing enlarged stage IV follicles, and (iii) induces atresia by producing atretic follicles that are peculiarly enlarged (i.e., big atretic follicles). We suggest that BPA induces atresia by the primary effect on recruitment of stage I follicles. This forces follicular progression and produces stage IV follicles that are peculiarly enlarged that undertake the atretic development.

The isolated tubal torsion: an insidious pediatric and adolescent pelvic urgency

Isolated tubal torsion (ITT) is a rare cause of acute abdominal pain. Preoperative diagnosis is difficult because of a lack of specific signs. Surgery is recommended to preserve the integrity of the tube. Seven patients of median age of 13 years (range 9 to 15) came to our observation for worsening abdominal pain, nausea and vomiting. On admission, all girls had blood tests and ultrasound. Laparoscopy was performed for diagnosis in all cases. The girls had one-month and one-year ultrasound and clinic follow up. In all cases diagnosis was delayed, median 66 hours after the onset of symptoms and laparoscopy showed necrosis of the Fallopian tube. In five girls a laparoscopic salpingectomy was performed. In the other two, an open salpingectomy was necessary because of pelvic adhesions. Histology showed a hemorrhagic infarction of the Fallopian tubes. At follow up all patients were asymptomatic with normal ovaries, but one ovarian cyst. In the differential diagnosis of acute abdominal pain in children or female adolescents the possibility of ITT should be considered for a conservative treatment. Laparoscopy allows for definitive diagnosis and treatment.

Transscrotal orchidopexy for palpable cryptorchid testis: follow-up and outcomes

We retrospectively reviewed the results of transscrotal orchidopexy in the surgical management of palpable testis. From January 2014 to June 2017, 130 male children with a total of 140 palpable undescended testes (UDT) underwent transscrotal orchidopexy. The charts were retrospectively reviewed for demographic data, preoperative position and mobility of the testis, patency of the peritoneal vaginal duct (PVD), and post-operative complications. The resting position of the testis and its traction towards the scrotum were assessed before surgery and under anaesthesia. The mean age of the patients was 4.6 years. The position of the testis assessed at surgery was in most cases at the external inguinal ring (62.8%), at the neck of the scrotum (15.7%), in the inguinal canal (12.8%), or in an ectopic position (8,5%). A PVD was found in 66 testes (47.1%). Two surgical cases required an inguinal incision. In each patient, the postoperative course was unremarkable. The testicle at 1-year follow-up was in a scrotal position in 134 cases, but 6 patients required a second surgical intervention for re-ascent of the testis. No testicular atrophy or inguinal hernias were observed. Transscrotal orchidopexy is a simple and effective procedure for the treatment of palpable UDT. The incidence of complications is low and manageable, with rapid postoperative recovery and early resumption of normal activities.

Risk Factors of Cholelithiasis Unrelated to Hematological Disorders in Pediatric Patients Undergoing Cholecystectomy

Background

Pediatric cholelithiasis unrelated to hematological disorders is an increasing disease. We analyzed our experience in the surgical treatment of these cases to evaluate risk factors, clinical presentation, intervention and follow-up.

Methods

From January 2010 to December 2016, we retrospectively recorded all data (hematological study, familiarity, use of lithogenic drugs and parenteral nutrition) of cholecystectomies for cholelithiasis not related to hematological diseases. The body mass index (BMI) was calculated (obesity if > 25), medical treatment, surgery and follow-up were evaluated. All patients underwent ultrasound for diagnosis and major biliary tract assessment prior to surgery. All patients had a 1-year follow-up.

Results

There were twenty-four cases (eight males), with a median age of 11.2 years. Predisposing factors were familiarity in 19, use of lithogenic drugs in 5 and total parental nutrition (TPN) in 3. Median BMI was 19.8 kg/m², with BMI > 25 kg/m² in eight cases. Regarding the clinical presentation, 14 had acute pain in the right upper quadrant, 5 had cholecystitis and 5 had non-specific abdominal pain. The medical treatment lasted 6 months in all, except for five (three operated after 2 months and two after 12 months). Preoperative ultrasound did not show stones in the biliary tract. MRI was performed in three cases for suspected malformation of the biliary tract (negative). Laparoscopic cholecystectomy was performed in all cases: mean intervention time was 95 min. A case of postcolecystectomy syndrome was found. At follow-up, all were asymptomatic, except two (recurrent abdominal pain).

Conclusion

Main predisposing factors are familiarity and obesity. Preoperative ultrasound in our series replaced the intraoperative study of the biliary tract. Laparoscopic cholecystectomy is the gold standard.

Clinical and radiological findings for early diagnosis of Herlyn-Werner-Wunderlich syndrome in pediatric age: experience of a single center

OBJECTIVE

The authors present their experience in the management of pediatric patients with Herlyn-Werner-Wunderlich syndrome (HWWS) considering clinical classification and anatomical characteristics of the malformation.

METHODS

All the data of the patient presented at our Pediatric Surgery Unit from February 2010 to August 2015 were collected. According to the type of malformations, patients were divided in 3 groups: A (completely obstructed hemivagina), B (incompletely obstructed hemivagina), and C (communication between the duplicated cervices).

RESULTS

Six patients were treated in the study period. The mean age was 9 years (2 months-15 years). According to the characteristics of the HWWS, we had 5 patients in group A, 1 in group B, and none in group C. One-stage surgical treatment was performed in all cases of complete obstruction, but in one case a second look was necessary for a better resection of the septum. At a mean follow-up of 18 months all patients were symptoms free.

CONCLUSIONS

Prognosis of this malformation is good in case of early diagnosis and treatment. We suggest that when a renal agenesia is diagnosed, the patient needs an ultrasonographic follow-up of the contralateral kidney but also of the genital tract to find each minimal abnormalities, furthermore, a MRI scanning before the onset of menstruation can be necessary.

Surgical management of Necrotizing Enterocolitis in an Incredibly Low Birth Weight infant and review of the Literature

Survival of preterm infants have dramatically improved over the last decades. Nonetheless, infants born preterm remain vulnerable to many complications, including necrotizing enterocolitis (NEC). The severity of the disease and the mortality rate are directly correlated with decreasing gestational age and birth weight. Despite surgical treatment mortality rate remains very high in extremely premature infants, especially in newborns at the lowest limit of viability. Survival of infants of birth weight (BW) below 750 g has been increasingly reported in recent years, however the overall mortality in extremely low "BW" infants (ELBW) requiring surgery for NEC has not decreased over the past years. We describe our experience with a male preterm infant who survived after an ileostomy procedure for Bell stage II NEC, with improving neuromotor skills at 2 years follow up. Although standard indication to surgery is Bell stage III, in our case the choice of minimal laparotomy, exploration of the bowel and ileostomy at Bell stage II was safe and effective. Our experience suggest that surgery has not a negative impact on survival and ileostomy could prevent further damage of the bowel in NEC. We hypothesize that indication to surgery at an earlier stage may prevent further progression of the disease without a significantly negative impact on survival. Further studies are needed to confirm the appropriateness of this approach in ELBW infants.

Peripheral Precocious Puberty due to Functioning Adrenocortical Tumor: Description of Two Cases

BACKGROUND

Adrenocortical tumors (ACTs) represent less than 0.2% of all childhood neoplasms. Frequent clinical manifestations are virilization, hypercortisolism, and peripheral precocious puberty (PPP).

CASES

We describe two cases in which ACTs were responsible for virilization (case 1) and PPP (case 2) in prepubertal girls. In both cases an ACT diagnosis was made after 5-6 months from the first appearance of clinical signs. Surgery was performed within 1 month of diagnosis, and the benign nature of tumors was histologically confirmed. Despite complete tumor resection, virilizing features persisted.

SUMMARY AND CONCLUSIONS

Adrenocortical tumors should be considered early in the assessment of PPP. There is often a significant delay between the onset of symptoms and accurate diagnosis but early treatment is essential to limit the clinical manifestations of androgen overproduction.

Persistent Nonbilious Vomiting in a Child: Possible Duodenal Webbing

An association between malrotation and congenital duodenal webbing is rare. We present our experience with four patients at two centers, and a review of published reports. There are currently 94 reported cases of duodenal pathology associated with malrotation. However, only 15 of the 94 cases (15.9%) include patients with malrotation and a duodenal web. We suggest that nonbilious vomiting in a child must prompt the surgeon to consider duodenal pathology even in the presence of malrotation.

Gastric transposition as a valid surgical option for esophageal replacement in pediatric patients: experience from three Italian medical centers

Background: Esophageal replacement in children is an option that is confined to very few situations including long-gap esophageal atresia and esophageal strictures unresponsive to other therapies (peptic or caustic ingestion). The purpose of our work was to describe the experience of gastric transposition in three Italian centers.

Methods: This is a retrospective study. The data were extrapolated from a prospective database. We included all patients who had undergone gastric transposition in the last 15 years.

Results: In the 15-year period, eight infants and children (3 males and 5 females) underwent gastric transposition for esophageal replacement. Six patients had long-gap esophageal atresia, and two had caustic esophageal stenosis. There were no deaths in the series. Three patients had an early postoperative complication: two had a self-limited salivary fistula at three weeks, and one (a patient with jejunostomy) had a jejunal perforation treated surgically. One late complication, anastomotic stricture, was recorded that required two endoscopic dilatations. The median follow-up was 60 months (range: 18–144 months). At final clinical follow-up, six patients had no eating problems, and two patients had some difficulties with eating (jejunostomy in situ), but they underwent logopedic therapy with improved outcomes. All patients had an increase in body weight and height postoperatively.

Conclusion: Our small study reports the clinical experience of three Italian centers in which gastric transposition was performed with excellent results, both in terms of surgical technique (simplicity, reproducibility, complication rate) and clinical follow-up (good oral feeding of young patients, normal social life and regular growth curves).

Genetics of Vesicoureteral Reflux

Vesicoureteral reflux (VUR) is the retrograde passage of urine from the bladder to the upper urinary tract. It is the most common congenital urological anomaly affecting 1-2% of children and 30-40% of patients with urinary tract infections. VUR is a major risk factor for pyelonephritic scarring and chronic renal failure in children. It is the result of a shortened intravesical ureter with an enlarged or malpositioned ureteric orifice. An ectopic embryonal ureteric budding development is implicated in the pathogenesis of VUR, which is a complex genetic developmental disorder. Many genes are involved in the ureteric budding formation and subsequently in the urinary tract and kidney development. Previous studies demonstrate an heterogeneous genetic pattern of VUR. In fact no single major locus or gene for primary VUR has been identified. It is likely that different forms of VUR with different genetic determinantes are present. Moreover genetic studies of syndromes with associated VUR have revealed several possible candidate genes involved in the pathogenesis of VUR and related urinary tract malformations. Mutations in genes essential for urinary tract morphogenesis are linked to numerous congenital syndromes, and in most of those VUR is a feature. The Authors provide an overview of the developmental processes leading to the VUR. The different genes and signaling pathways controlling the embryonal urinary tract development are analyzed. A better understanding of VUR genetic bases could improve the management of this condition in children.

Preservation of native esophagus in infants with pure esophageal atresia has good long-term outcomes despite significant postoperative morbidity

PURPOSE

To evaluate long-term outcomes of pure esophageal atresia (EA) repair with preservation of native esophagus.

METHODS

Infants with pure EA treated at our institution (2000-2010) and with minimum 5-year follow-up were reviewed (REB:1000046653). Data analysed included demographics, management and outcomes and are reported as mean ± SD/median (range).

RESULTS

Of 185 infants with EA, 12 (7 %) had pure EA (gestational age: 36 ± 2.4 weeks, birth weight: 2353 ± 675 g). Ten had associated anomalies, including trisomy-21 (n = 2) and duodenal atresia (n = 1).

SURGERY

1 patient (short gap) underwent primary thoracoscopic anastomosis, 11 had gastrostomy (Stamm, n = 5; image-guided, n = 6) as initial procedure. At definitive repair (age: 128 ± 91 days; weight 5.5 ± 2.3 kg): ten had primary anastomosis and 1 had Collis gastroplasty. No patient had esophageal replacement surgery.

OUTCOMES

three patients had gastrostomy dehiscence requiring re-operation. At post-operative esophagram, seven had anastomotic leak successfully treated conservatively. Seven patients developed strictures requiring balloon dilatations (median two dilatations, range 1-10), six received antireflux surgery. At 7-year follow-up (range 5-15 years), all patients had the gastrostomy closed and were on full oral feeds.

CONCLUSIONS

The management of pure EA continues to be challenging. The preservation of native esophagus is possible with significant morbidity. The long-term outcomes are favourable.

Outcome of esophageal atresia/tracheoesophageal fistula in extremely low birth weight neonates (<1000 grams)

PURPOSE

To review the outcomes of extremely low birth weight (ELBW, <1000 g) infants with esophageal atresia/tracheoesophageal fistula (EA/TEF).

METHODS

Health records of ELBW EA/TEF infants treated at our institution from 2000 to 2014 were reviewed (REB1000046653). Demographics, operative approach and postoperative complications were analyzed. Data are reported as median (range).

RESULTS

Of 268 EA/TEF infants, 8 (3 %, five females) were ELBW (930 g, 540-995). Gestational age was 28 weeks (23-32). Seven had type-C EA/TEF and one type B.

OUTCOMES

One trisomy 18 infant received no treatment and died; one initially diagnosed as type A had primary repair at 126 days of life (DOL); six underwent TEF ligation (three trans-pleural) with primary repair in one and delayed anastomosis in two (DOL 120 and 178). The remaining three died (gastrostomy dehiscence and peritonitis, liver hemorrhage during peritoneal drain insertion, severe chronic lung disease and brain hemorrhages). At a median follow-up of 3 years (range 15 months-5 years), all survivors are thriving.

CONCLUSION

ELBW infants with EA/TEF are rare and result in high morbidity and mortality. Mortality is mainly related to complications not associated with EA/TEF repair. Fistula ligation followed by delayed anastomosis seems to achieve a better outcome in ELBW infants.

Effects of dietary Lactobacillus acidophilus and Bacillus subtilis on laying performance, egg quality, blood biochemistry and immune response of organic laying hens

The objective of this study was to evaluate the effects of two different probiotic micro-organisms on the performance, egg quality and blood parameters of organically reared hens. A total of 900 16-week-old Hy-Line layer hybrids were randomly assigned to three groups of 300 birds each. The control (CTR) group was fed a corn-soya bean cake-based diet; the L group was fed the same diet supplemented with 0.1% Lactobacillus acidophilus, while the B group was fed the same diet supplemented with 0.05% Bacillus subtilis. Data were recorded at the beginning (weeks 5 and 6: T1) and at the end (weeks 19 and 20: T2) of the experiment, and no differences in hen performance were recorded between dietary groups or sampling times. All of the investigated clinical chemistry parameters, except GGT, were affected by diet (p < 0.05), with the best results recorded for the probiotic-treated groups. The immune-response values showed higher blood bactericidal activity in the B and L groups at T2 (p < 0.05) and a lower lysozime concentration in the B group at T1. Higher antibody production against Newcastle disease virus was observed in the L group compared to the CTR (p = 0.013). No differences in oxidative status were recorded, and no effects of diet on egg quality were observed. Among the physical egg characteristics, only the Roche scale colour was affected by diet (p < 0.05): the egg yolk was paler in the L group. The age of the hen was the most relevant factor affecting physical egg characteristics. The chemical parameters of the egg were almost unaffected by supplementation with probiotics except for the lipid content, which decreased with the L diet (p < 0.05). Both probiotic inclusions had beneficial effects on hen metabolism and welfare, and L. acidophilus induced the best immune response.

A possible association between sports and isolated fallopian tube torsion in children and adolescent females

Isolated fallopian tube torsion (IFTT) is a rare occurrence characterized by the rotation of the fallopian tube on its own axis, without twisting the ipsilateral ovary. Pre-operative diagnosis is difficult due to the lack of specific clinical symptoms and radiological signs. The etiology is to date unknown and only some pre-disposing factors have been reported. The history, clinical presentation, laboratory findings and surgical treatment of five patients aged 12-16 with IFTT were evaluated. All patients came to be examined for worsening abdominal pain, nausea or vomiting. 75% of them practiced sports involving sudden changes in body position. They all underwent blood tests, ultrasound and Magnetic Resonance and then laparoscopy for the persistence of acute symptoms. Laparoscopic salpingectomy was performed in three patients. Another two needed a conversion to open salpingectomy due to the presence of pelvic adhesions. During the follow-up period, every girl was fine. The cause of IFTT is undetermined. In this series, a close association between IFTT and sports causing rapid body movements was found. The possibility of IFTT should be considered in the differential diagnosis of acute abdominal pain in children or adolescent females, especially if they practice sports.

Esophageal multichannel intraluminal impedance and pH monitoring in children: indications and limits

AIM

Aim of the study was to compare multichannel intraluminal impedance (MII)-pH monitoring versus pH only, as first-line assessment of gastroesophageal reflux (GER) in children and to define the relation between GER and symptoms as well relation between types of GER and age of children.

METHODS

All the patients with GER were divided in three groups: A, younger than 24 months, B, older than 24 months with typical symptoms and C, older than 24 months with atypical symptoms. The groups A and C underwent a combined MII-pH recording. The group B underwent a only pH recording. MII-pH measurements were performed in 89 children (63 group A and 26 group C), only pH measurements in 170 cases (group B).

RESULTS

Sixty-seven of the 247 pH measurements demonstrated abnormal reflux indices: 25.0% (group A), 28.8% (group B) and 20.8% (group C). The number of the reflux periods and the total reflux index were highest in the patients of the group B, but the number of long reflux periods was highest in the group C. Abnormal values at MII results were found in 36 cases: 41.7% in group A (high number of weakly acid refluxes events) and 45.8% in group C (similar number of acid and weakly acid events). The MII were considered pathological because of high number of reflux episodes and symptom index ≥ 50% respectively in 60.0% and 40.0% of the group A and 27.3% and 62.7% of the group C.

CONCLUSION

MII-pH study must be reserved to patients younger than 2-year old (high probability of weakly acid reflux) and children with atypical symptoms.

Laparoscopic approach to Meckel's diverticulum

AIM: To retrospective review the laparoscopic management of Meckel Diverticulum (MD) in two Italian Pediatric Surgery Centers.

METHODS: Between January 2002 and December 2012, 19 trans-umbilical laparoscopic-assisted (TULA) procedures were performed for suspected MD. The children were hospitalized for gastrointestinal bleeding and/or recurrent abdominal pain. Median age at diagnosis was 5.4 years (range 6 mo-15 years). The study included 15 boys and 4 girls. All patients underwent clinical examination, routine laboratory tests, abdominal ultrasound and technetium-99m pertechnetate scan, and patients with bleeding underwent gastrointestinal endoscopy. The abdominal exploration was performed with a 10 mm operative laparoscope. Pneumoperitoneum was established based on the body weight. Systematic overview of the peritoneal cavity allowed the ileum to be grasped with an atraumatic instrument. The complete exploration and surgical treatment of MD were performed extracorporeally, after intestinal exteriorization through the umbilicus. All patients’ demographics, main clinical features, diagnostic investigations, operative time, histopathology reports, conversion rate, hospital stay and complications were registered and analyzed.

RESULTS: MD was identified in 17 patients, while 1 had an ileal duplication and 1 a jejunal hemangioma. Fifteen patients had painless intestinal bleeding, while 4 had recurrent abdominal pain and exhibited cyst like structures in an ultrasound study. Eleven patients had a positive technetium-99m pertechnetate scan. In the patients with bleeding, gastrointestinal endoscopy did not name the source of hemorrhage. All patients were subjected to a TULA surgical procedure. An intestinal resection/anastomosis was performed in 14 patients, while 4 had a wedge resection of the diverticulum and 1 underwent stapling diverticulectomy. All surgical procedures were performed without conversion to open laparotomy. Mean operative time was 75 min (range 40-115 min). No major surgical complications were recorded. The median hospital stay was 5-7 d (range 4-13 d). All patients are asymptomatic at a median follow up of 4, 5 years (range 10 mo-10 years).

CONCLUSION: Trans-umbilical laparoscopic-assisted Meckel’s diverticulectomy is safe and effective in the treatment of MD, with excellent results.

Beyond the Intestinal Celiac Mucosa: Diagnostic Role of Anti-TG2 Deposits, a Systematic Review

Aim: To review the existing literature on the role and significance of intestinal transglutaminase 2 immunoglobulin A deposits (TG2 deposits) in patients with overt celiac disease (CD), potential celiac disease (PCD), and other autoimmune or gluten-related conditions.

Methods: We conducted a systematic review of studies published in English, evaluating presence and characteristics of TG2 deposits in subjects with overt CD, PCD, gluten-related diseases [dermatitis herpetiformis (DH), gluten-ataxia (GA)], autoimmune disorders (type-1 diabetes), and other conditions. Studies were identified through a MEDLINE search (1950–2013).

Results: Twenty-three studies were included in the review. Eleven studies were performed in children. Overall TG2 deposits were present in 100% of adults with overt CD, while in children prevalence ranged from 73.2 to 100%. Six studies with an established definition of PCD were considered, prevalence of deposits ranging from 64.7 to 100%. A single study followed-up PCD patients with repeated biopsies and identified presence of intestinal deposits as the best marker to reveal progression toward villous atrophy. Two studies investigated presence of deposits in DH, reporting prevalence between 63 and 79%. A single study documented TG2 deposits in 100% of patients with GA. In children with type-1 diabetes (T1D), positivity of intestinal TG2 deposits ranged from 25 to 78%.

Conclusion: Transglutaminase 2 IgA deposits seem to be a constant feature in overt CD patients and are frequently detectable in other gluten-related conditions (DH and GA). The vast majority of PCD patients express TG2 deposits at the intestinal level, but no sufficient data are available to exactly define their prognostic role as a marker of evolution toward overt CD. The frequent finding of TG2 deposits in the intestinal mucosa of patients with T1D is an interesting observation deserving further evaluation.

Spermatogenesis and cryptorchidism

Cryptorchidism represents the most common endocrine disease in boys, with infertility more frequently observed in bilateral forms. It is also known that undescended testes, if untreated, lead to an increased risk of testicular tumors, usually seminomas, arising from mutant germ cells. In normal testes, germ cell development is an active process starting in the first months of life when the neonatal gonocytes transform into adult dark (AD) spermatogonia. These cells are now thought to be the stem cells useful to support spermatogenesis. Several researches suggest that AD spermatogonia form between 3 and 9 months of age. Not all the neonatal gonocytes transform into AD spermatogonia; indeed, the residual gonocytes undergo involution by apoptosis. In the undescended testes, these transformations are inhibited leading to a deficient pool of stem cells for post pubertal spermatogenesis. Early surgical intervention in infancy may allow the normal development of stem cells for spermatogenesis. Moreover, it is very interesting to note that intra-tubular carcinoma in situ in the second and third decades have enzymatic markers similar to neonatal gonocytes suggesting that these cells fail transformation into AD spermatogonia and likely generate testicular cancer (TC) in cryptorchid men. Orchidopexy between 6 and 12 months of age is recommended to maximize the future fertility potential and decrease the TC risk in adulthood.

Effect of autologous transplantation of bone marrow cells concentrated with the MarrowXpress system in patients with critical limb ischemia

Critical limb ischemia (CLI), a vascular disease affecting lower limbs, with high morbidity and mortality, is becoming a challenge due to the aging of the population. Patients without direct revascularization options have the worst outcomes. To date, 25% to 40% of CLI patients are not candidates for surgical or endovascular approaches, facing a major amputation as the ultimate option. This study sought to assess the safety and efficacy of transplantation of autologous bone marrow concentrates in "no-option" patients to restore blood perfusion by collateral flow and limb salvage. We performed a nonrandomized, noncontrolled pilot study for no-option CLI patients using intra-arterial infusion of autologous bone marrow concentrate. Variation of blood perfusion parameters, evaluated by laser doppler flowmetry after 6 and 12 months, was set as primary endpoint. Thirteen enrolled patients showed improvements in objective measurements of perfusion. This uncontrolled study provided evidence that transplantation of autologous bone marrow concentrates was well tolerated by CLI patients without significant adverse effects, demonstrating improved perfusion, confirming the feasibility and safety of the procedure.