Small Bowel Obstruction Caused by an Aberrant Congenital Band in a Child / 대한소아소화기영양학회지

Small bowel obstruction due to congenital band is not only rare in children, but also difficult to diagnose, because common symptoms such as vomiting and abdominal pain are observed in patients. In order to prevent a fatal result, an anomalous congenital band should be considered in the discriminative diagnosis of intestinal obstruction in children who have no previous experience of operation or intraperitoneal inflammation. This report presents a 4-year-old boy who was admitted with abdominal pain and nonbilious vomiting for a day. The initial suspicion was for acute gastroenteritis. However, after further investigation and performance of surgery, the intestinal obstruction associated with a congenital band was confirmed. No recurrence was observed during the 8-month follow-up period. Thus early confirmation based on radiologic study is a crucial factor for the diagnosis of small bowel obstruction caused by a congenital band.

Cytomegalovirus-associated esophageal ulcer in an immunocompetent infant: When should ganciclovir be administered? / 소아과

Cytomegalovirus (CMV)-associated esophageal ulcer is rare in immunocompetent infants. The presence of inclusion bodies and immunohistochemical staining for CMV in biopsy specimens obtained during esophagogastroduodenoscopy (EGD) indicate that such ulcers occur because of CMV infection. A 7-week-old female infant who experienced frequent vomiting and feeding intolerance was diagnosed with a massive CMV-associated ulcer in the distal esophagus. The ulcer improved after conservative treatment using proton-pump inhibitors; however, ganciclovir was not administered. In a follow-up EGD biopsy specimen, no CMV inclusion bodies were present, and immunohistochemical staining results for this virus were negative. The presence of CMV inclusion bodies indicates active viral replication. If persistent inclusion bodies or positive immunohistochemical staining for CMV is observed in follow-up biopsy specimens, ganciclovir may be used to treat CMV-associated esophageal ulcers.

The dietary therapy and use of probiotics in the treatment of pediatric acute diarrhea

In the process of medical care of acute diarrhea in children, two pathophysiologic aspects should be considered: dehydration associated with electrolyte imbalance, and nutritional disorder. It is important to continue to provide foods easy to digest with appropriate recipes from the early stage after a remedy of dehydration using oral rehydration solution or intravenous fluid therapy according to patients' condition. Nil per os or diluted diet can slow the recovery of an intestinal function and lengthen the diarrheal period. Although the damage on the intestinal mucosa occurs from various causes, the gastrointestinal mucosa maximizes absorbing capacity by expanding the area of a surface. Early oral-feeding contributes to restoring mucosa favorably and thus facilitates a rapid improvement of symptoms. Breast-feeding should continue to be performed in the midst of rehydration, and lactose-containing regular cow's milk formula is recommended for cow's milk-fed patients after rehydration. In mild or severe acute diarrhea, administering probiotics in conjunction with feeding is expected to shorten the diarrheal period.

The Characteristics and Diagnostic Methods of Food Protein Induced Proctocolitis / 대한소아소화기영양학회지

Food protein induced proctocolitis (FPIPC) is a non-IgE mediated food allergy. FPIPC occurs exclusively among breast-fed infants within the first months of life. FPIPC is often diagnosed clinically in normal-conditioned infants with rectal bleeding. But FPIPC among infancy with rectal bleeding is less general than conceived. The endoscopic findings reveal an edematous and erythematous mucosa with superficial erosions or ulcerations, bleeding and lymphoid nodular hyperplasia. The prominent eosinophilic infiltrates in the rectosigmoid mucosa are important for the histopathologic diagnosis of FPIPC. However, in explaining eosinophilic infiltration within the lamina propria of the mucosa, it is necessary to differentiate whether it is a part of normal findings or occurs due to inflammatory reactions. Oral food challenge and elimination test is performed to identify the same clinical reaction as the symptom of FPIPC by the administration of a specific type of food to infants. The most common causal food is cow's milk. Thus oral food challenge and elimination test can be the effective way of confirming FPIPC, reducing the possibility of misdiagnosis. The purpose of this report is to identify the characteristics of FPIPC, to introduce its diagnostic methods, and to suggest the future direction of research.

What is the 'objective' differential factor of diarrhea in infancy?: Normal state versus diarrheal illness in infants with chronic frequent and loose stool / 소아과

PURPOSE: This study aimed to identify 'objective' differential factors for normal frequent loose stool (NFLS) and diarrheal illness with dehydration and nutritional deficiency (DIDN) among infants with chronic frequent loose stool (CFLS). METHODS: Data were analyzed from infants under 2 years of age with CFLS who had been transferred from general pediatricians. These 46 patients were divided into 2 groups (NFLS versus DIDN). Nocturnal stool was defined as evacuation between 10 pm and 6 am. Maximal stool amount/day (measured using the mother's hand) was specified as the highest score during the period of CFLS obtained by adding up each evacuation's score (range, 0-2 points). RESULTS: There were 36 cases of NFLS and 10 of DIDN. A failure to gain weight (P=0.0001), fever (P=0.0079), colic/abdominal pain (P=0.0014), gross blood in stool (except allergic proctocolitis) (P=0.0113), nocturnal stool (P=0.0001), and the score of stool amount (P=0.0001) were found to significantly differentiate the groups. A failure to gain weight was observed in 39% of even NFLS. The frequency, mucus content, and microbiological findings of stools, as well as diaper dermatitis were not found to significantly differentiate the groups. CONCLUSION: NFLS was more common than DIDN in infants with CFLS. The most 'objective' differential factors were nocturnal stool and the score of stool amount (> or =7 points/day).

Pseudomembranous colitis in children: Experience of a university hospital in Korea / 소아과

PURPOSE: Pseudomembranous colitis (PMC) occurs rarely in children, but its incidences are increasing due to frequent antibiotic use. We investigated the incidence and clinical characteristics of PMC accompanied by bacterial enteritis-like symptoms in children. METHODS: Between November 2003 and July 2007 at the Department of Pediatrics, Dongsan Medical Center, we analyzed the medical records of consecutive patients who received antibiotics in the past 1 month, developed bacterial enteritis-like symptoms, and were diagnosed with PMC based on sigmoidoscopy examination and histological findings. RESULTS: Among 22 patients who underwent sigmoidoscopy and biopsy examinations, 11 (50%) were diagnosed with PMC. These 11 patients were aged 2 months-12 years, among whom 5 patients (45.5%) were less than 1 year old. The clinical symptoms were bloody diarrhea (28.6%), abdominal pain or colic (28.6%), watery or mucoid diarrhea (23.8%), vomiting (9.5%), and fever (9.5%). The antibiotics used were penicillins (55.6%), macrolides (27.8%), cephalosporins (11.1%), and aminoglycosides (5.6%). The period of antibiotic use was 3-14 days. The interval between the initial antibiotic exposure and the onset of symptoms was 5-21 days. The results of stool examination of all patients were negative for Clostridium difficile toxin A. Patient distribution according to the degree of PMC was as follows: grade I, 18.2% (2 cases); grade II, 27.3% (3); grade III, 36.4% (4); and grade IV, 18.2% (2). PMC did not recur in any case. CONCLUSION: PMC is not a rare disease in children. If pediatric patients receiving antibiotics manifest symptoms like bacterial enteritis, PMC should be suspected. Endoscopy and biopsy should be applied as aggressive diagnostic approaches to detect this condition.

Perianastomotic ulceration presenting with long-term iron deficiency anemia and growth failure: A case report and review of the literature / 소아과

Perianastomotic ulceration (PAU) rarely occurs after small bowel resection in infancy. Since the understanding of its pathogenesis is incomplete, an effective method of treatment has not yet been discovered. We report the first case in Korea of a 10-year-old girl with chronic iron deficiency anemia (IDA) and growth failure who was diagnosed with PAU at colonoscopy. Seven years were required to identify the cause of IDA. After surgical resection and revision of anastomosis, a close follow-up is being conducted due to the risk of recurrence. Here, we also review reports on 25 pediatric patients with PAU derived from a search of the English-language literature and describe the clinical features of PAU along with the results of treatment.

A Study of Clinical Features and Prognosis of Neonatal Seizures / 대한소아신경학회지

PURPOSE: Neonatal seizures are relatively common and the symptoms are clinically different from those in older children and adults. The goal of this study is to help understand neonatal seizures by analyzing the etiology, clinical features, method of diagnosis and prognosis of the affected patients in our hospital. METHODS: Twenty six cases with neonatal seizures who were admitted to the neonatal intensive care unit, Dongguk University Hospital from January 1999 to October 2008 were retrospectively reviewed. They were evaluated with risk factors, neurologic examinations, laboratory data, neuroimaging studies, EEG findings, seizure types, response to treatment, and outcomes. RESULTS: Subtle seizure came out to be the most common seizure type(9 patients: 34.6 %). The cause of neonatal seizures were hypoxic-ischemic encephalopathy(9 patients: 34.6 %), intracranial hemorrhage(8 patients: 30.8%), electrolyte imbalance(8 patients: 30.8%), meningitis(7 patients: 26.9%). Nineteen out of 25 patients showed abnormal lesion on neuroimaging studies such as intracranial hemorrhage, periventricular leukomalacia, brain infarction, etc. Abnormal EEG findings were noted in 19 patient(73.1%). Phenobarbital was tried as a first line antiepileptic drug and phenytoin was added if it failed to control seizures. The overall outcome was relatively good except for those with abnormal EEG findings. CONCLUSION: Neonatal seizures signify underlying diseases. Recognition of etiology is often helpful in prognosis and treatment. Neuroradiological and EEG findings are important in predicting neurologic outcomes in newborns with seizures.

Predictive factors for severe infection among febrile infants younger than three months of age / 소아과

PURPOSE: This study investigated the predictive factors for identifying infection-prone febrile infants younger than three months. METHODS: We conducted a retrospective study of 167 infants younger than three months with an axillary temperature >38degrees C who were hospitalized between 2006 and 2008. If they met any of the following criteria, positive blood culture, CSF WBC > or =11/mm3 or positive CSF culture, urinalysis WBC > or =6/HPF and positive urine culture, WBC > or =6/HPF on microscopic stool examination or positive stool culture, they were considered at high risk for severe infection. Infants with focal infection, respiratory infection or antibiotic administration prior to admission to the hospital were excluded. We evaluated the symptoms, physical examination findings, laboratory data, and the clinical course between the high risk and low risk groups for severe infection. RESULTS: The high-risk group included 77(46.1%) infants, and the most common diagnosis was urinary tract infection (51.9%). Factors, such as male sex, ESR and CRP were statistically different between the two groups. But, a multilinear regression analysis for severe infection showed that male and ESR factors are significant. CONCLUSION: We did not find the distinguishing symptoms and laboratory findings for identifying severe infection-prone febrile infants younger than three months. However, the high-risk group was male and ESR-dominated, and these can possibly be used as predictive factors for severe infection.

A Case of Non-Hallopeau-Siemens Recessive Dystrophic Epidermolysis Bullosa

Dystrophic epidermolysis bullosa (DEB) is a rare group of heritable mechanobullous disorders that are characterized by blistering and scarring of the skin and mucosae and these lesions are induced by minor trauma, DEB is also associated with nail dystrophy. DEB can be inherited either in an autosomal recessive or dominant fashion. Regardless of the mode of inheritance, DEB is caused by defects of the ultrastructural entity known as the anchoring fibril, which results in separation of the sublamina densa. Recessive DEB (RDEB) is classified into Hallopeau-Siemens and non- Hallopeau-Siemens. We herein report on a case of non- Hallopeau-Siemens RDEB and there was no family history of this malady, and we present the clinical, histological and electron microscopy findings.

Iron Deficiency and Brain Development in Infancy / 대한소아소화기영양학회지

As the most common nutrition deficiency, iron deficiency not only causes anemia but also influences the central nervous system development. Its pathogenesis is supposed to be the alteration of neurometabolism and neurotransmission in major brain structures, and the disruption of myelination. The first two years after birth is a crucial period for cognitive, behavior, and emotional development with fast brain growth. If iron deficiency occurs in this period, cognitive and psychomotor function cannot be restored in spite of adequate iron supplementation. Thus, iron deficiency in infancy should be considered as a serious disease.

A Case of Mycoplasma Pneumonia Complicated with Status Epilepticus and Encephalopathy / 소아알레르기및호흡기학회지

Mycoplasma pneumoniae is known to be a common respiratory pathogen in children and adolescents. It rarely causes neurologic complications, such as meningitis, encephalitis and cerebellar ataxia, in some patients as extrapulmonary manifestations. Neurologic symptoms, such as impairment of consciousness, seizure and paralysis, in the early stage. We report a case of lobar pneumoia caused by M. pneumoniae which was complicated with status epilepticus and encephalopathy.

A Case of Mucinous Adenocarcinoma of the SigmoidColon in a Child / 대한소아소화기영양학회지

Colorectal carcinomas occur primarily in elderly people and are rare in children. Unlike adult colorectal carcinomas, the overall prognosis is very poor because of the usual delay in diagnosis and advanced stages at presentation or initial diagnosis, and a high incidence of aggressive tumor pathology such as mucinous adenocarcinoma. Colon cancer should not be excluded in children only based on age or barium enema results. Therefore, colonoscopy should be performed in pediatric patients with unexplained rectal bleeding and abdominal pain. We report a rare case of a child with a mucinous adenocarcinoma of the sigmoid colon in a 12-year-old boy, who presented with an abdominal mass and abdominal pain and review the medical literature.

Incidence and Risk Factors for Cystic Periventricular Leukomalacia in Premature Low Birth Weight Infants

PURPOSE: While the survival rate of preterm infants in the neonatal intensive care unit is increasing, the neurological complication such as cerebral palsy is still a serious problem. This study is to determine the incidence of cystic periventricular leukomalacia (cPVL) observed among preterm low birth weight infants and its risk factors. METHODS: The medical records of infants (under 37 weeks of gestational age and under 2,500 g of birth weight) delivered from June 2003 to May 2006 were reviewed with special reference to cPVL. Maternal factors, labor and delivery characteristics and neonatal parameters were collected. It is inquired of whether the already known perinatal and neonatal risk factors such as prematurity, birth weight, intrauterine infection, mode of delivery, breech presentation, postnatal resuscitation and intubation, antenatal steroid, administration of surfactant and early onset of sepsis can be attributed to cPVL incidence of given infants. RESULTS: Ventilator care was offered to 7 infants, and surfactant was applied to 6 infants among 10 infants who has cPVL. The incidence of cPVL is 7.2%. The risk factors like low Apgar score at 1 minute, twin, use of epinephrine or dopamine, postnatal administration of surfactant and ventilator care have statistical meaning (P<0.05). CONCLUSION: The incidence of cPVL is higher in the cases of low Apgar score at 1 minute, twin, delivery room resuscitation, respiratory distress syndrome and ventilator care. These risk factors should be controlled with special attention to their influences on the brain. By way of regular follow-up, careful observation of neurological problem must be given to infants required of epinephrine, dopamine and ventilator care.

Morgagni Hernia in a 3-year Old Boy: a Case Report

A 3-year-old boy with purulent otitis media received a chest radiograph as the part of a routine work up. The patient was normal appearing, in no acute distress. The patient's lung and heart sounds were clear and normal. The patient's abdomen was soft, non-distended, and non-tender. An anterior cardiophrenic mass was incidentally identified on the lateral chest radiograph. A computed tomography scan demonstrated a diaphragmatic hernia with bowel loops in the retrosternal space. An exploratory operation revealed a diaphragmatic defect (4 cm in diameter) on the left side of the falciform ligament, through which transverse colon was protruded. There was no hernia sac, and the defect was closed with interrupted No. 2 silk sutures. The child was discharged on the 8th postoperative day without any complications. During 6 months of follow-up period, recurrence was not noticed.

A Case of Infantile Alexander Disease Accompanied by Infantile Spasms Diagnosed by DNA Analysis

Alexander disease (AD) is a rare leukodystrophy of the central nervous system of unknown etiology. AD is characterized by progressive failure of central myelination and the accumulation of Rosenthal fibers in astrocytes, and is inevitably lethal in nature. Symptomatically, AD is associated with leukoencephalopathy with macrocephaly, seizures, and psychomotor retardation in infants, and usually leads to death within the first decade. Its characteristic magnetic resonance imaging (MRI) findings have been described as demyelination predominantly in the frontal lobe. Moreover, dominant mutations in the GFAP gene, coding for glial fibrillary acidic protein (GFAP), a principal astrocytic intermediate filament protein, have been shown to lead to AD. The disease can now be detected by genetic diagnosis. We report the Korean case of an 8-month-old male patient with AD. He was clinically characterized due to the presence of psychomotor retardation, megalencephaly, spasticity, and recurrent seizures including infantile spasms which is a remarkable presentation. Demyelination in the frontal lobe and in a portion of the temporal lobe was demonstrated by brain MRI. Moreover, DNA analysis of peripheral blood showed the presence of a R239L mutation in the GFAP gene, involving the replacement of guanine with thymine.

Survey on the Awareness of Guardians of Young Infants on the Weaning of Food in Pohang and Gyeongju Area / 대한소아소화기영양학회지

PURPOSE: This study was carried out to investigate the awareness of the weaning of food using questionnaires, and the relationship with the weight gain in young infants. METHODS: From September 2005 to December 2005, we performed a survey on 141 guardians of young infants aged from 6 to 18 months, who visited the pediatric out-patient department at Dongguk University Medical Center. We calculated the total score for each responder from ten questions on the weaning of food and assessed the body weight percentile of each of the young infants. RESULTS: The most commonly reported information source for weaning food was 'the friends around' by 62 respondents (44.0%); 54 (38.3%) responded that the definition of weaning food was the preparatory step before starting a solid diet. Most used a spoon (90.8%) to feed when weaning food with a thin gruel of rice (78.7%). The time for weaning of food was before breast or infant formula feeding (55.3%). Addition of cow's milk was around 12 months (77.3%). The mean score was 6.21; however this did not show a statistically significant correlation with weight gain in young infants. CONCLUSION: The overall awareness of weaning of food has improved; however, information from doctors has decreased. Although the relationship between the awareness of weaning of food and the growth of young infants was not statistically significant, further studies on weaning of food, with larger and controlled sample sizes may provide important information.

A Suggested New Clinical Classification for Pediatric Intussusception / 대한소아소화기영양학회지

PURPOSE: We proposed a new classification of pediatric intussusception based on clinical and radiologic findings. METHODS: Data from 88 consecutive patients with intussusception were reviewed. We retrospectively analyzed six factors; patient age, sites of intussusception, symptoms, therapeutic methods, existence of enlarged mesenteric lymph nodes, and ultrasonographic (US) findings from clinical records. RESULTS: 1) There was one neonatal case (1.1%), the others (98.9%) were infants and children. 2) These 87 infant and child cases consisted of 14 cases (16.1%) of small bowel intussusception (SBI) and 73 cases (83.9%) of ileo-colic intussusception (ICI). Of the 14 SBI cases, 12 cases were symptomatic and 2 cases were asymptomatic. The symptomatic group comprised 8 transient cases (66.7%), 3 operative cases (25.0%), and 1 enema-reduction case (8.3%). Two asymptomatic cases were incidentally captured by computed tomography. Of the 73 ICI cases, 19 cases (26.0%) required operation, and 54 (74.0%) enema-reduction. 3) When transient SBI cases were compared with operated SBI cases, enema-reduced and operated ICI cases, the age (38.0+/-22.9 months) of transient SBI cases were significantly higher than those of the others (p=0.003). Mean mass size (20.8+/-2.7 mm) in transient SBI was significantly smaller than in the others (p=0.0001). 4) No correlation was found between the existence of enlarged mesenteric lymph nodes and therapeutic method or concomitant illness. 5) Most of the target types observed by US were in transient SBI cases, the remainder were in the enema-reduced ICI cases. In terms of the doughnuts type, all 8 cases (34.8%) with an external hypoechoic rim thickness of >8.9 mm were treated surgically. CONCLUSION: Pediatric intussusception may be classified based on clinical and radiologic findings, which are likely to indicate appropriate therapies.

A Case of Isolated Rice Allergy / 대한소아소화기영양학회지

Rice allergen has low antigenicity, and thus, anaphylactoid reactions to rice are exceedingly rare. We experienced a case of isolated rice allergy in a 5 month-old girl who had been fed a milk formula without incident. However, after feeding a powdered weaning milk formula containing rice, she developed symptoms of projectile vomiting and diarrhea, at this time rice specific antigen tests were all negative. One month later a challenge test was performed using a rice gruel, and her symptoms recurred. Endoscopic and microscopic findings showed hyperemic mucosa in the duodenum and subtotal villous atrophy. Thereafter, she showed no adverse reaction to almost all foods appropriate for her age, but after feeding rice gruel at 10 months, she developed symptoms of cyanosis and vomiting. However, none of the allergic symptoms were demonstrated at 13 months upon repeated challenge test. Currently, she is 28 months old and tolerates all foods including rice.

A Case of PFAPA Syndrome Mimicking Cyclic Vomiting Syndrome / 대한소아소화기영양학회지

PFAPA syndrome is characterized by periodic fevers associated with aphthous stomatitis, pharyngitis, and cervical adenitis and is unusual in infants and children. We report on a case of PFAPA syndrome mimicking cyclic vomiting syndrome in a 42-month-old girl. She had experienced multiple episodes of cyclic vomiting with abdominal pain from age 20 to 30 months. When she was 30 months old, periodic fever with pharyngitis was combined with cyclic vomiting, and when 40 months old, aphthous stomatitis and cervical adenitis were added. These periodic symptoms and signs were not treated with prokinetics or antibiotics. Symptom duration of an episode was 3 days. After cimetidine therapy (150 mg three times daily for 6 months), her febrile and cyclic vomiting episodes ceased. At the time of writing she had not received therapy for 10 months and has remained well without periodic attack.