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Biomedical subjects

Shinobu Ida

Publications and source records attributed to Shinobu Ida.

11 recordsLinked to original sources

Cow's milk protein allergy presenting with Hirschsprung's disease-mimicking symptoms.

BACKGROUND: Pediatric surgeons often encounter neonates who present with Hirschsprung's disease (HD)-like symptoms and plain x-ray findings, but respond well to conservative treatment. During our investigation of the etiology of this condition, which we named "benign transient nonorganic ileus of neonates" (BTNIN), we noticed that BTNIN included cases of cow's milk allergy (CMA). Therefore, a prospective study of the identity of BTNIN and CMA was conducted. METHODS: Cow's milk allergy was diagnosed when a baby showed HD-like symptoms after oral feeding, and a drug-induced lymphocyte stimulation test was positive for cow's milk with a titer of more than 300%. MATERIALS: Of 38 neonates with suspected HD, a surgical disorder was excluded by plain x-ray in 9, intestinal atresia was diagnosed in 3, and the remaining 26 were enrolled in this study. RESULTS: Of 26 cases, 9 were diagnosed as HD by manometric studies and 17 as CMA. Thirteen of 17 CMA cases had been fed with breast milk and 4 with formula milk. CONCLUSION: The proportion of CMA in the cases presenting with HD-like symptoms in the neonatal period is much higher than what we expected, and most cases of BTNIN are caused by CMA. If HD is ruled out, CMA should be considered.

Diagnosis, Differential↗

[NASH in children].

It has long been recognized that hepatic steatosis (fatty liver) occurs in obese children as in adults. Steatosis of any etiology can be associated with the development of necro-inflammation and fibrosis, so called steatohepatitis, and even cirrhosis. Nonalcoholic steatohepatitis (NASH) has been proposed as a component of insulin resistant syndrome and exists in pediatric population. The other etiology of NASH in children has not been clearly understood. In addition to obesity, adipose tissue distribution also appears to influence metabolic complications. Subjects with visceral fat adiposity appear to be at risk for fatty liver because of their ability to transport free fatty acids directly into the portal vein for conversion to triglycerides within the liver. A stronger relationship of serum ALT to visceral adiposity than BMI was demonstrated. Many metabolic diseases such as Wilson's disease, NICCD, OTC deficiency, carnitine deficiency have steatohepatitis and cirrhosis. It may play the important role to reveal the mechanism of progress to NASH.

Child↗

Cow's milk allergy presenting Hirschsprung's disease-mimicking symptoms.

The authors present a neonatal case of allergic colitis, which manifested the difficulty of spontaneous defecation and irregular narrowing of distal rectum in contrast enema. Rectal suction biopsy showed positive acetylcholinesterase activity. These clinical, radiological and histological findings were indistinguishable from Hirschsprung's disease. Gastrointestinal symptoms were improved by the cessation of cow's milk formula. The present findings may impact on the less recognizable gastrointestinal manifestation of allergic colitis.

Animals↗

Medical treatment of infantile hypertrophic pyloric stenosis: should we always slice the "olive"?

BACKGROUND/PURPOSE: Laparoscopic pyloromyotomy has recently gained wide acceptance as the optimum treatment of infantile hypertrophic pyloric stenosis (IHPS). However, medical treatment may be superior to laparoscopic surgery in invasiveness. The efficacy of our regimen of intravenous atropine therapy for IHPS was assessed in comparison with surgical treatment. METHODS: Medical treatment was initially chosen for 52 (61%) of 85 infants with IHPS at our institute between 1996 and 2004. Atropine was given intravenously at 0.01 mg/kg 6 times a day before feeding. When vomiting ceased and the infants were able to ingest 150 mL/kg per day of formula after stepwise increases in the feeding volume, they were given 0.02 mg/kg atropine 6 times a day orally, and the dose was decreased stepwise. RESULTS: Of the 52 patients, 45 (87%) ceased projectile vomiting with treatment using intravenous (median, 7 days) and subsequent oral (median, 44 days) atropine administration. The median hospital stay was 13 days (6-36), and no significant complications were encountered during atropine therapy. The remaining 7 patients required surgery. Of 40 who underwent surgery, 4 had wound infections and 1 with hemophilia had postoperative hemorrhagic shock. The patients who underwent successful atropine therapy had body weights comparable with those who underwent surgery at the age of 1 year. CONCLUSIONS: The high success rate of intravenous atropine therapy for IHPS suggests that this therapy is an effective alternative to pyloromyotomy if the length of the hospital stay and the necessity of continuing oral atropine medication are accepted.

Atropine↗

[Barrett's esophagus in children].

Barrett's esophagus (BE) is a condition of esophageal dysplasia in which the tubular esophagus is lined with columnar instead of squamous mucosa--not with just any type of columnar mucosa, but with a specialized type with goblet cells. It is considered to be an acquired phenomenon secondary to acid exposure from gastro-esophageal reflux (GER). This report shows a review of BE of children and our data about BE from the study of 19 handicapped children with GER. 3 had intestinal dysplasia with goblet cells (BE). The % time of pH under 4 on 24-hour pH monitoring was significantly lower in the patients with esophagitis including BE than in them with normal esophagus. BE of our study seemed to be reversible after the surgery and anti-acid therapy. It is suggested that BE is not a rare condition even in children and biopsy specimens should be taken to establish the diagnosis.

Barrett Esophagus↗

The prevalence of Helicobacter pylori in Japanese children with gastritis or peptic ulcer disease.

BACKGROUND: Although Helicobacter pylori infection is typically acquired in childhood, the role of H. pylori infection in gastroduodenal diseases in childhood remains to be defined. The purpose of this study was to evaluate the prevalence of H. pylori infection in children with gastritis, duodenal ulcer, and gastric ulcer. METHODS: This was a retrospective analysis of 283 Japanese children (mean age, 11.5 years) with non-nodular gastritis ( n = 73), nodular gastritis ( n = 67), duodenal ulcer ( n = 100), and gastric ulcer ( n = 43). H. pylori status was based on biopsy tests. Clinical symptoms at the time of endoscopy were analyzed with regard to a possible association with the infection. RESULTS: The prevalence of H. pylori in non-nodular gastritis, nodular gastritis, duodenal ulcer, and gastric ulcer was 28.8%, 98.5%, 83.0%, and 44.2%, respectively. H. pylori was significantly linked to duodenal ulcer and gastric ulcers in the age group of 10-16 years, but not in the age group of 9 years and under. In children with H. pylori infection, nodular gastritis was observed in 26.3% of gastric ulcer patients and in 74.7% of duodenal ulcer patients ( P < 0.001). H. pylori infection was significantly associated with the prevalence of anemia ( P < 0.05). CONCLUSIONS: H. pylori is the most important causal factor for the development of duodenal ulcer in childhood. While H. pylori infection appears to be a risk factor in gastric ulcer, other causes are responsible for most cases. Nodular gastritis is the most common type of H. pylori gastritis in childhood. Chronic infection with H. pylori is associated with anemia.

Adolescent↗

Effect of baclofen on emesis and 24-hour esophageal pH in neurologically impaired children with gastroesophageal reflux disease.

OBJECTIVES: Gastroesophageal reflux disease (GERD) is difficult to control with medical therapy in neurologically impaired children. The gamma-aminobutyric acid type B receptor agonist baclofen was recently reported to reduce reflux in adult patients with GERD by reducing the incidence of transient lower esophageal sphincter relaxations. The current study was undertaken to investigate the effects of baclofen on GERD in neurologically impaired children. METHODS: Eight neurologically impaired children with GERD between 2 months and 16 years were studied. Baclofen (0.7 mg/kg/day) was administered orally or via nasogastric tube in three divided doses 30 minutes before meals for 7 days. The frequency of emesis on and off baclofen were recorded as a measure of clinical impact. Twenty-four-hour esophageal pH monitoring was conducted before and on the seventh day of the administration of baclofen. RESULTS: The frequency of emesis was significantly decreased (P = 0.03). The total number of acid refluxes was significantly decreased both during the entire 24-hour period (P = 0.01) and during the postprandial period (P = 0.049). The number of acid refluxes longer than 5 minutes was significantly decreased during the 24-hour period (P = 0.02). The percentage total time of esophageal pH <4.0 and esophageal acid clearance time were not significantly different during the 24-hour period or during the postprandial period. No adverse effects were observed, except for a slight reduction in muscle tone in one subject. CONCLUSIONS: In this 1-week trial, repetitive administration of baclofen reduced the frequency of emesis and the total number of acid refluxes in neurologically impaired children with GERD.

Administration, Oral↗

[Evaluation and treatment of gastroesophageal reflux in infants and children].

Gastroesophageal reflux (GER), defined as passage of gastric contents into esophagus, and GER disease (GERD), defined as symptoms or complications of GER, are common pediatric problems encountered by both primary and specialty medical providers. Clinical manifestations of GERD in children include vomiting, poor weight gain, dysphagia, abdominal or substernal pain, esophagitis and respiratory disorders. On the other hand, recurrent vomiting is the symptom of hydronephrosis, brain tumor, food allergy, uremia, other metabolic disease, obstruction of intestine etc. It is very important for clinicians dealing with children and infants to understand GERD. The evaluation and treatment of gastroesophageal reflux in infants and children were reviewed here.

Asthma↗

[An autopsy case of cryptococcal meningoencephalitis: correlation of MRI and pathologic findings].

A comparative study of MRI and pathology was performed on a case of cryptococcal meningoencephalitis. An 11-year-old female presented with confusion and vomiting. On admission, CSF examination revealed spherical fungal cells with mild pleocytosis, decreased glucose and elevated protein level. MRI showed multiple punctate lesions in the basal ganglia with high intensity on T2-weighted image, while enhanced MRI revealed diffuse meningeal involvement. Post-mortem examination disclosed that the T2-weighted lesions found in the basal ganglia were aggregated small cystic lesions consisting of a cryptococcal invasion of Virchow-Robin spaces, termed "soap bubble lesions", characteristic findings of cryptococcal meningoencephalitis. Thus MRI findings of the basal ganglia and meninges may help to diagnose cryptococcal meningoencephalitis.

Brain↗

[GH therapy in Prader-Willi syndrome].

Prader-Willi syndrome (PWS) is a genetic disorder characterized by short stature, an insatiable appetite resulting in progressive obesity, hypotonia, and hypogonadism. Many of these symptoms suggest a hypothalamic dysfunction. In fact, reduced growth hormone (GH) secretion and low insulin-like growth factor (IGF- I) are shown in PWS resembling the GH deficient state. The GH treatment of patients with PWS are effective on growth and body composition with decreasing in body fat mass and increasing in body muscle mass, resulting in improvement of respiratory function and bone mineral density. The important advance effects reported during GH treatment of patients with PWS are diabetes mellitus and respiratory dysfunction was recently reported. It is very important that GH should be used with another treatment such as diet therapy, and with only this way GH can play an important role among the overall treatments of PWS.

English Abstract↗