Incidence of contralateral patent processus vaginalis in relation to age at laparoscopic percutaneous extraperitoneal closure for pediatric inguinal hernia.

INTRODUCTION: Laparoscopic percutaneous extraperitoneal closure (LPEC) allows the surgeon to look for contralateral patent processus vaginalis (CPPV) directly. We investigated the incidence of CPPV in relation to age at LPEC. METHODS: Following Institutional Review Board approval, 1232 patients ranging in age from 2 months old to 15 years old (median 4.7 years), who underwent LPEC, were investigated retrospectively. Patients were divided into five groups based on their age at surgery: younger than 1, 1-2, 2-4, 4-6 years, and older than 6 years. The incidence of CPPV being detected by preoperative ultrasonography or laparoscopy was compared among these groups. Statistical analyses were performed using the Chi-square test or Cochran-Armitage trend test, and p < 0.05 was considered significant. RESULTS: The incidence of CPPV detected by ultrasonography decreased as the age increased (p < 0.0001), whereas the incidence of CPPV newly revealed by laparoscopy increased as age increased (p = 0.0001). There were no significant differences in the incidence of CPPV in patients with unilateral hernia among the five age groups (p = 0.74). CONCLUSIONS: These results showed that the incidence of CPPV in patients with unilateral inguinal hernia did not change in relation to their age.

Effects of insistent screening for contralateral patent processus vaginalis in laparoscopic percutaneous extraperitoneal closure to prevent metachronous contralateral onset of pediatric inguinal hernia.

PURPOSE: Laparoscopic percutaneous extraperitoneal closure (LPEC) is known to reduce the incidence of metachronous contralateral hernia (MCH) compared to conventional hernia repair. We herein describe the effects of insistent screening for an irregular orifice of the contralateral patent processus vaginalis (CPPV). METHODS: All patients who underwent LPEC between 2003 and 2013 were reviewed. We started insistent screening for a CPPV in July 2010. The surgically treated cases before June 2010 were assigned to the former group, while those treated after July 2010 were in the latter group. The data were retrospectively collected from medical records. The statistical analysis was performed using the Mann-Whitney U test or Chi square test. A value of P < 0.05 was considered to be significant. RESULT: A total of 1113 patients (514 males and 599 females) ranging in age from 3 months old to 15 years old (median 4.6 years old), were reviewed. Of the 626 patients in the former group, a CPPV was detected in 227 patients. Of the 487 patients in the latter group, a CPPV was detected in 271 patients. The incidence of a CPPV significantly increased over time (P < 0.001). We encountered five cases of MCH, all of which belonged to the former group (P = 0.048). CONCLUSIONS: The increased detection of a CPPV by insistent screening seemed to cause a decrease in the incidence of MCH.

Intestinal neuronal dysplasia-like histopathology in infancy.

The present patient was delivered at a gestational age of 27 weeks. She had abdominal bloating with symptoms of respiratory distress. We suspected Hirschsprung disease (HD) or small intestinal stricture, but examinations were not definitive. Exploratory laparotomy was performed at 97 days of age. Intraoperative findings showed no evidence of small intestinal stricture or changes in intestinal caliber. A transanal drainage tube was inserted, and decompression therapy and intestinal lavage were started. Rectal mucosal biopsy was performed at 184 days of age, and HE and acetylcholinesterase staining showed intestinal neuronal dysplasia (IND)-like pathological findings. At 15 months, giant ganglia were no longer present on follow-up rectal mucosal biopsy, and the pathological diagnosis was normoganglionosis. It should be recognized that while the enteric nervous system is developing, IND-like pathological findings may be seen as a pathological condition during the maturation process.

Near-infrared fluorescence cholangiography with indocyanine green for biliary atresia. Real-time imaging during the Kasai procedure: a pilot study.

INTRODUCTION: Hepatoportoenterostomy (HPE) with the Kasai procedure is the treatment of choice for biliary atresia (BA) as the initial surgery. However, the appropriate level of dissection level of the fibrous cone (FC) of the porta hepatis (PH) is frequently unclear, and the procedure sometimes results in unsuccessful outcomes. Recently, indocyanine green near-infrared fluorescence imaging (ICG-FCG) has been developed as a form of real-time cholangiography. METHODS: We applied this technique in five patients with BA to visualize the biliary flow at the PH intraoperatively. ICG was injected intravenously the day before surgery as the liver function test, and the liver was observed with a near-infrared camera system during the operation while the patient's feces was also observed. RESULTS: In all patients, the whole liver fluoresced diffusely with ICG-containing stagnant bile, whereas no extrahepatic structures fluoresced. The findings of the ICG fluorescence pattern of the PH after dissection of the FC were classified into three types: spotty fluorescence, one patient; diffuse weak fluorescence, three patients; and diffuse strong fluorescence, one patient. In all five patients, the feces evacuated after HPE showed distinct fluorescent spots, although that obtained before surgery showed no fluorescence. One patient with diffuse strong fluorescence who did not achieve JF underwent living related liver transplantation six months after the initial HPE procedure. Four patients, including three cases involving diffuse weak fluorescence and one case involving spotty fluorescence showed weak fluorescence compared to that of the surrounding liver surface. CONCLUSION: We were able to detect the presence of bile excretion at the time of HPE intraoperatively and successfully evaluated the extent of bile excretion using this new technique. Furthermore, the ICG-FCG findings may provide information leading to a new classification and potentially function as an indicator predicting the clinical outcomes after HPE.

Successful Treatment of Transverse Testicular Ectopia by Laparoscopically Assisted Orchiopexy.

Transverse testicular ectopia (TTE) is a rare congenital malformation where both testes descend through the same inguinal canal and are located in the same hemiscrotum. It is usually treated with transseptal orchiopexy. In this article, we report the case of a 1-year-old boy diagnosed with TTE who was successfully treated with laparoscopically assisted orchiopexy by going through the anatomical conventional route. A four-month-old boy was referred to our department with bilateral empty scrotum. On the physical examination, the left testis was palpable in the left groin region and the right testis was impalpable. A follow up ultrasonography was performed after 4 months, and an oval-shaped testis-like structure was detected in left internal inguinal ring near the left testis. Right side TTE was suspected in the initial diagnosis. Laparoscopic surgery was performed at age one. The left testis was observed in the inguinal canal, and the right testis was ectopically located in the left opening inguinal canal above the left testis. Two spermatic cord and testes were separated respectively, and the right testis was pulled into abdominal space laparoscopically and brought down to the right hemiscrotum via the right inguinoscrotal canal. Bilateral orchiopexy was performed via the normal anatomical route. The postoperative course was uneventful, and testes were in the scrotum bilaterally one year after orchiopexy.

The Evaluation of Gastric Emptying Using the 13 C-Acetate Breath Test in Neurologically Impaired Patients - A Focus on the Stomach Function and Morphology.

PURPOSE: We explored factors affecting gastric emptying in neurologically impaired (NI) patients using the 13C-acetate breath test. METHODS: Twenty-four NI patients were classified by the presence of gastroesophageal reflux disease (GERD), which was treated by fundoplication plus gastrostomy, or the absence of GERD, which was treated by gastrostomy alone, along with gastric malposition involving cascade stomach and organoaxial gastric volvulus (OGV). Gastric emptying parameters (GEPs), which were the emptying half time (T 1/2 , minute), the lag phase time (T lag , minute), and the gastric emptying coefficient (GEC), were measured before and after surgery. We evaluated the relationship between GEPs and GERD, gastric malposition, and surgical intervention. All data were expressed as the median (interquartile range). RESULTS: The T1/2 and GEC of patients with OGV were significantly worse than in those without OGV before surgery (T1/2 with OGV: 241.3 [154.9, 314.3] vs. T1/2 without OGV: 113.7 [105.2, 151.4], p = 0.01, GEC with OGV: 3.19 [2.46, 3.28] vs. GEC without OGV: 3.65 [3.24, 3.90], p = 0.02). GERD and cascade stomach were not associ ated with GEPs. The GEPs of all NI patients showed no significant difference between before and after surgery. The surgical change in T1/2 (ΔT 1/2 ) in the patients with OGV was significantly lower than in those without OGV (ΔT1/2 with OGV: -47.1 [-142.7, -22.1] vs. ΔT1/2 without OGV: -3.78 [-26.6, 12.0], p = 0.03). CONCLUSION: Stomach malposition, such as OGV, seems to affect gastric emptying and may be improved by surgi cal intervention.

Pre and post-operative evaluation of gastroesophageal reflux and esophageal motility in neurologically impaired children using combined pH-multichannel intraluminal impedance measurements.

BACKGROUND: Gastroesophageal reflux disease (GERD) in patients with neurological impairment (NI) has not been fully studied before and after fundoplication procedure because their characteristics such as generalized gastrointestinal dysmotility, non-acid reflux, and the proximal reflux due to feeding of enteral nutrition via a nasogastric tube prevent their GERD from being detected by 24 h pH monitoring. The aim of this study was to elucidate whether multichannel impedance-pH measurement (pH/MII) is able to detect the subtypes of GERD and the differences in the reflux episodes of the severity of GERD, the ingestion pathway, and before and after fundoplication. The second aim was to determine whether a trial evaluation of dry swallows was able to be used to assess the esophageal motility of NI patients as an alternative examination. PATIENTS AND METHODS: The 24 h pH/MII was conducted on 20 NI children [15 were the patients before Nissen's fundoplication (BN), of whom, six were fed orally (FO) and nine were fed via nasogastric tube (NGT), and five were the patients after Nissen's fundoplication (AN)]. All reflux episodes were evaluated and compared between patients with pathological GERD (PG) and non-pathological GERD (NG) and between patients who had FO and NGT and patients between BN and AN. Dry swallows were conducted to evaluate the esophageal motility. The average bolus presence time (BPT) and total bolus transit time (TBTT) were compared between the PG and NG, FO and NGT, and the BN and AN subgroups. RESULTS: A total of 1,064 reflux episodes were detected by pH/MII. Of those, 303 (28.5 %) were non-acid-related and 477 episodes reached the proximal esophagus. Of the 12 patients (57.1 %) showing pathological GERD, two cases (16.7 %) demonstrated predominantly weakly acidic PG. More than half of the reflux episodes of PG patients reached to the proximal esophagus. The numbers of total reflux and proximal reflux episodes in the PG were significantly higher than those in NG patients. The number of proximal reflux episodes in the FO group was significantly higher than that in the NGT groups, whereas NGT patients showed more non-acidic reflux episodes than FO patients. A trial evaluation of dry swallows demonstrated no significant differences in this study. CONCLUSION: The pH/MII was useful to detect the subtype of GERD in NI patients which could not be detected by 24 h pH monitoring. It can, therefore, be considered to have first priority for testing NI patients who are suspected to be suffering from GERD.

Infantile neuroblastoma of the urinary bladder detected by hematuria.

Malignant tumors of the urinary bladder in infants are extremely rare. Rhabdomyosarcoma is the most likely tumor in this site, whereas neuroblastoma of the urinary bladder is exceedingly uncommon and is not listed as a differential diagnosis for tumors of this site. We present a case of neuroblastoma arising from the dome of the bladder wall, detected by hematuria. Only six cases of neuroblastoma originating from the bladder, including the present case have been reported. Of the cases, five arose from the dome of the bladder wall. In this report, the differential diagnosis of bladder tumors in children is discussed. A diagnosis of neuroblastoma should be taken into consideration, especially in the case of tumors arising from the dome of the bladder wall despite an uncommon location.

Infantile juvenile xanthogranuloma of the chest wall mimicking mesenchymal hamartoma: report of a case.

Juvenile xanthogranuloma (JXG) is essentially a benign neoplasm arising from any site on the body; however, there has so far been only one report of JXG located on the chest wall involving a rib. This report presents a rare case finally diagnosed as JXG based on histopathological and immunohistochemical examinations.

The utility of a phase angle analysis in patients with severe motor and intellectual disabilities.

PURPOSE: The purpose of the present study was to evaluate whether evaluating the phase angle (PhA), in a bioelectrical impedance analysis (BIA) is useful for estimating the nutritional status of severe motor and intellectual disabilities (SMID) patients. SUBJECTS AND METHODS: This retrospective study included 31 SMID patients (mean age: 33.9±13.5years, median age: 29years (range: 18-58years), male/female: 23/8). First, each of the parameters from the total study population and the male and female SMID patients were compared with those of healthy Asian subjects. Second, correlation analyses were conducted to investigate the correlation between the PhA and the other BIA parameters (appendicular skeletal muscle mass index (ASMI), appendicular muscle mass (AMM), extracellular water (ECW)/total body water (TBW)) as well as subjective global assessment and serum nutritional markers. Finally, all patients were divided into 2 groups according to their albumin (Alb) (<3.5 or ≥3.5) values and PhA of the 2 groups were compared. RESULTS: The mean PhA and ASMI were a considerably low, whereas ECW/TBW was considerably high in comparison to the healthy Asian subjects. Significant negative correlations were observed between the PhA and ECW/TBW, whereas there were significant positive correlations between PhA and AMM, ASMI, total protein and albumin levels. Furthermore, PhA of Alb ≥3.5 group was significantly higher than that of Alb <3.5 group. CONCLUSIONS: The present study indicated that SMID patients demonstrate the low PhA, which were similar to sarcopenia and a certain proportion of them also potentially have nutritional disturbances.

Severe Delayed Gastric Emptying Induces Non-acid Reflux up to Proximal Esophagus in Neurologically Impaired Patients.

BACKGROUND/AIMS: The aim of this study is to investigate the degree of delayed gastric emptying (DGE) and evaluate how the severity of DGE affects gastroesophageal reflux disease (GERD) in neurologically impaired (NI) patients utilizing 24-hour multichannel intraluminal impedance pH measurements (pH/MII) and 13C-acetate breath test (13C-ABT) analyses. METHODS: 13C-ABT and pH/MII were conducted in 26 NI patients who were referred to our institution due to suspected GERD. At first, correlation analyses were performed to investigate the correlation between the 13C-ABT parameters and the clinical or pH/MII parameters. Thereafter, all patients were divided into 2 groups (DGE and severe DGE [SDGE] group) according to each cut off half emptying time (t1/2, 90-170 minutes). Each pH/MII parameter was compared between the 2 groups in each set-up cutoff t1/2. RESULTS: The mean t1/2 of all patients was 215.5 ± 237.2 minutes and the t1/2 of 24 (92.3%) patients were > 100 minutes. Significant moderate positive correlations were observed between both t1/2 and lag phase time and the non-acid reflux related parameters. Furthermore, the patients in the SDGE group demonstrated higher non-acid reflux related parameters than those of the DGE groups when the cutoff was t1/2 ≥ 140 minutes. CONCLUSION: The present study demonstrated that GE with t1/2 ≥ 140 minutes was related to an increase of non-acid exposure reaching up to the proximal esophagus in NI patients, and indicating that NI patients with SDGE might have a high risk of non-acid GERD.