Clinical predictors of high risk bleeding endoscopic lesions in children with haematemesis

Background: Haematemesis is an alarming symptom in children, even if the proportion of normal endoscopies ranges from 10 to 21% and the causes are often benign. The purpose of the study was to identify clinical predictors of endoscopic lesions with high risk of bleeding and to establish a score that predict the presence of these lesions

Methods:Retrospective study carried in Children's Hospital of Tunis between 1997 and 2006 involved children with haematemesis who underwent Upper gastrointestinal endoscopy. Several clinical parameters were analyzed. Univariate analysis and multivariate logistic regression were performed to identify predictive parameters of endoscopic lesions with high risk of bleeding. A score was developed from the parameters derived from the multivariate analysis. The sensitivity and specificity of the score were determined

Results: Among 2814 endoscopies, 814 were conducted for haematemesis and 489 were selected for the study. 140/489 had lesions with high risk of bleeding. Multivariate logistic regression analysis identified six factors independently associated with high risk bleeding lesions: endoscopy performed within 48 hours [OR=2.2; 95% CI 0.7-6.9], re-bleeding [OR=1.4; 95% CI 0.7-2.5], the importance of the bleeding, mild to severe [OR=1.8; 95% CI 1.1- 3], bright red haematemesis [OR=1; 95% CI 0.2-5.8], history of gastrointestinal and liver disease [OR=1.6; 95% CI 1.1-3] and intake of gastro toxic drugs [OR=1.3; 95% CI 0.8-2.3]. Then, we established a score. The sensitivity, specificity, positive predictive value and negative predictive value of this score were respectively 79.6%, 32.9%, 34.9% and 78% for a cut off value> 0.22

Conclusion: The clinical predictive parameters of high risk bleeding lesions identified have not yielded a score with significant sensitivity and specificity. A prospective study should be performed to improve the score

Predictive score for positive upper endoscopies outcomes in children with upper gastrointestinal bleeding

Background: Upper gastrointestinal bleeding [UGIB] is a common pediatric emergency. Esophago-gastro-duodenoscopy [EGD] is the first line diagnostic procedure to identify the source of bleeding. However etiology of UGIB remains unknown in 20% of cases. Furthermore, emergency endoscopy is unavailable in many hospitals in our country

Aims: Identify clinical predictors of positive upper endoscopy outcomes and develop a clinical prediction rule from these parameters

Methods:Retrospective study of EGDs performed in children with first episode of UGIB, in the endoscopic unit of Children's Hospital of Tunis, during a period of six years. Statistical analysis used SPSS20. Univariate analysis was performed and multivariate logistic regression was then modelled to derive a clinical prediction rule

Results: We collected 655 endoscopies [23.2% normal, 76.8% pathological]. We found that time to EGD within 24 hours from the onset of bleeding [p=0.027; Adj OR: 3.30 [1.14 - 9.53]], rebleeding [p=0.009; Adj OR: 6.01 [1.57 - 23.02]], positive gastric lavage outcome [p=0.001; Adj OR: 4.79 [1.95 - 11.79]] and non steroidal anti-inflammatory drugs intake [p=0.035; Adj OR: 5.66 [1.13 - 28.31]] were predictors of positive upper endoscopy outcomes. By assigning each factor, the adjusted odds ratio [Adj OR], we developed a score with four items, ranging from 4 to 20. Using the receiver operating characteristic [ROC] curve the best cut off >/= 9 was defined [sensitivity 88.2%, specificity 60.6%, positive predictive value 92.7% and negative predictive value 47.6%]. The score discriminated well with a ROC curve area of 0.837 [95% confidence interval [0.769 - 0.905]]

Conclusions: This clinical prediction rule is a simple measure that may identify children who needed emergency endoscopy. A prospective study is required to validate our results and evaluate other clinical features that were insufficient for this analysis

[Pediatric Crohn's disease in Tunisia]

Crohn's disease occur mainly in adults. However, pediatric onset forms are not rare and have many characteristics.To study clinical, diagnostic, therapeutic and evolutive characteristics of crohn's disease in tunisian children. Retrospective multicenter study conducted in 10 pediatric departments on a period of 10 years [2000-2008]. 43 children were included. The sex-ratio was 1.68. The mean age at the onset of the symptoms was 11 +/- 2.3 years [5-16 years]. The age of onset was inferior to 10 years in 25% of the children. The delay before management was superior to 1 year in 25% of cases. The initial symptoms were dominated by diarrhea [95%]. Perineal manifestations were present at diagnosis in 30% of children and extra-digestive manifestations in 53%. Ileocolonic localization was the most frequent [46%]. The initial disease flare was moderate in 83% of cases. The treatment was medical in 77% of cases, nutritional and medical in 18.5%. Maintenance therapy was instituted in 86% of cases and consisted essentiallay in azathioprin [62%]. The mean follow-up was 3 years and 4 months. 60% of the children had at least one acute flare. During evolution, 7% of children had anoperineal surgery and 11% an intestinal resection. Crohn's disease seems rare in Tunisia. The time of diagnosis is often delayed. The management is based on immunosuppressive therapy and nutritional support

Nodular gastritis: an endoscopic indicator of helicobacter pylori infection in children

Helicobacter pylori [Hp] infection is a common and universally distributed bacterial infection. It is predominantly acquired in childhood. To assess the relationship between endoscopic nodular gastritis and Hp infection. A retrospective study was conducted in children who underwent upper gastrointestinal endoscopy for chronic abdominal pain. All children who had five gastric biopsies for histologic analysis, urease test and Hp culture were included in the study. The Sensitivity and sensibility of nodular gastritis were determined and different parameters were studied according the presence or not of nodular gastritis[age, gender, Hp status, gastritis score and lymphoid follicles]. 49 children, mean age 6.9 +/- 3 years [range 1-12 years] were eligible for the analysis. Hp Infection was diagnosed in 35 out of the 49 children [71.5%]. Nodular gastritis was recorded in 16 out of 49 children and in 14 infected children and 2 out of 14 non infected children [p=0.07], 40% sensitivity, 85.7% specificity, 87.5% positive predictive value, and 36,4% negative predictive value. The parameters associated significantly to the presence of nodular gastritis were older age: [p=0.04], Hp infection: [p=0.01], chronic gastritis: [p=0.05], active gastritis: [p=0.02], follicular gastritis: [p=0.005], higher gastritis score: [p=0.005]. Completely normal gastric mucosal histology was never found in infected children with antral nodularity. Among all infected children, the gastritis score was significantly higher when there was a nodular gastritis and follicular gastritis was significantly associated to nodular gastritis. The endoscopic pattern of antral nodularity identifies children with Hp infection, and active chronic follicular gastritis

[Interventional endoscopy in the gastrointestinal tract in children]

Interventional endoscopic procedures involving the gastrointestinal [GI] tract in children are very common. Over the last several years the number of procedures in this area has steadily increased. To study indications and results of GI interventional endoscopies performed in a Pediatric GI unit. Retrospective study over a period of 10 years [1999- 2008]. Data were collected from endoscopic files. All procedures were performed endoscopically under general anesthesia. 185 interventional endoscopic procedures were done during this period in 96 patients [58 boys] median age: 4.9 +/- 4.7 years [1 month-13 years]. Indications were as follows: esophageal stenosis [n= 46; 47.9%], rectal polyp resection [n=21; 19.8%], esophageal varices ligation [n=19; 19.7%], foreign body extractions [n= 8; 8.3%] and percutaneous endoscopic gastrostomy [n= 2; 2.1%]. One hundred and thirteen esophageal dilations [61.1% of procedures] were performed in 46 patients: caustic stenosis [n=22; 22.9%], peptic stenosis [n=13; 13.5%] and anastomotic stenosis [n= 11; 11.4%]. The main indication of interventional GI endoscopy in this series was oesophageal stenosis followed by rectal polyp resection, esophageal varices ligation and foreign body extractions

[Study [knowledge, behaviour practices] of 116 mothers on vitamin D supplementation]

In our country, the prevention of rickets is based on daily vitamin D intake from birth to eighteen months .This vitamin D intake has decreased according to our hospital practice. To assess vitamin D supplementation prevalence and to study mother knowledge, attitude and practices about vitamin D and factors that influenced them and to define target population who needs further education. A predefined questionnaire was submitted to 116 mother's child who was aged from two months to three years and were hospitalised for acute disease in Tunis children hospital. The questionnaire was filled by the paediatrician. He included as well questions on vitamin D supplementation and questions on socio- demographics characteristics. 68% of the infants had received vitamin D. The various significant factors who influenced the knowledge about vitamin D were father and mother out of work, low education level, and the living in a deserited area, The factors that influenced significantly the practices were the one parity and the living far away, up to five kilometer, from a primary health care. Given that the supplementation of vitamin D is recommended for all infants the study show that supplementation prevalence is unsatisfactorily low. Various risks factors were identified. In view of the new evidence emerging on additional preventive properties of vitamin D and the resurgence of rickets, its promotion must be discussed anew

[Value of procalcitonin measurement in materno foetal infection]

Materno foetal infection [MFI] remains one of the major causes of neonatal morbidity and mortality. Early detection of neonatal sepsis can be difficult, because the first signs of the disease may be unspecific and similar to symptoms of other non-infectious processes. We aimed to investigate the role of procalcitonin [PCT] in the diagnosis of fetal infection [MFI], and to compare it with those of the C-reactive protein [CRP]. We have conducted a prospective study during 20 months; which concerned 25 new-borns suspected of MFI and admitted before 12 hours of life. All newborn had anamnestic and / or physical signs of possible infection. MFI was confirmed in newborns with positive bacterial analysis. CRP and PCT were determined in the sera at H12, H24, H36 and H48. Newborns were divided into: patients with recognized MFI [group 1], patients with possible MFI [group 2] and non infected newborns [group 3]: The specificity of PCT was 80% versus 27% for the CRP. Negative predictive value of PCT was 85% versus 66% for the CRP. The mean values, at H12, H24, H36 and H48, of PCT for newborn who had MFI were statistically grater than those for no infused group [p <0.05]. No statistical difference was observed concerning CRP values. PCT may a useful tool in early diagnosing of MFI; it has better specificity and negative predictive value than CRP

[Diagnosis of hyper transaminasemia in childhood]

Elevated serum levels of transaminases must always be considered as an abnormal finding in children. Drugs and toxins must be eliminated first as possible hepatotoxic agents or co-factors. Antiviral hepatitis A immunoglobulin M serology is the first test to perform. However, others viruses with spontaneous benign courses are the most frequent cause. Only if initial presentation is severe or if liver tests remain abnormal after several weeks, other rare diseases can be sought. Aetiologies of persistent cytolysis associated to cholestasis are different in infancy and childhood. Metabolic, auto immune, genetic, muscular, endocrine disorders and obesity may cause isolated persistent hyper transaminasemia. Early diagnosis and management is essential, Isolated elevation of serum amino transferases in healthy looking children with negative investigations is mostly a benign condition that usually resolves within a year. Liver biopsy does not contribute much to diagnosis and is probably unnecessary

[Aetiologies and outcome of bronchiectasis in children: a study of 41 patients]

Bronchiectasis remains an important cause of chronic suppurative lung disease in the developing world. This study is to describe the epidemiological characteristics, clinical features, underlying aetiologies and Outcome of bronchiectasis in the paediatric hospital of Tunis. A retrospective study of 41 children with bronchiectasis was conducted between January 1994 and December 2006. Diagnosis was made in patients with clinical suspicion of bronchiectasis associated with abnormalities on chest X ray [n=37] and/or on high resolution computed tomography [HRCT] [n=36]. Mean age at diagnosis was 5 years 9 months; [range: 6 months-14 years]. Persistent cough and bronchorhea were the most common symptoms. Fourteen patients [34%] had dyspnoea on first presentation, 11 of them [26.8%] had chest deformation and/or finger clubbing. Haemoptysis was noted in only two cases. Mean time to diagnosis from symptom onset was 2.7 years [range: 2 months- 4 years]. The underlying aetiologies were identified in 52% of patients. Cystic fibrosis [17%], previous pneumonic illness [9.7%], primary ciliary dyskinesia [9.7%] and immunodeficiency [9.7%] were the most common causes. After a mean follow-up of 6.6 years, the annual lower respiratory infection rate decreased from 7.2 +/- 3 to 3.1 +/- 2.6 [p<0.05], Twenty one point nine per cent of patients had chronic respiratory failure and five patients required surgery. Delays diagnosis of bronchiectasis remains important in our country. Congenital and indeterminate aetiologies are the most common forms. Prognosis is poor with a high prevalence of chronic respiratory failure

[Cholestasis in infant: a study of the children's hospital of Tunis]

Cholestasis in infant constitutes an heterogeneous group of disease; diagnosis and management are often difficult. The Aim of the study is to describe clinical, paraclinical characteristics and outcome of infants hospitalized for cholestasis in children's Hospital of Tunis. A retrospective study of 94 infants with cholestasis was conducted. Patients were hospitalized in four departments of paediatrics of our hospital between January 1995 and December 2005. Cholestasis complicating severe sepsis and visceral leishmaniasis were excluded. Incidence of cholestasis was 8.5 cases/year which represented 0.72% of the hospitalizations. Sex ratio was 1.08 and mean age at diagnosis was 105 days [extremes: 1 day- 24 months]. Biliary atresia was the most common cause of extra hepatic cholestasis [13.8%]. Normal A GT cholestasis [11.7%], benign neonatal cholestasis [11.7%] and bile duct hypoplasia [9.5%] represented the most common aetiologies of intra hepatic cholestasis. Aetiology remained unknown in 12.7% of cases. Only three infants with biliary atresia had Kasai operation. After a mean follow-up of 6 years, 18% of patients had portal hypertension, 14.8% had hepatic failure and mortality rate was 14.8%. Cholestasis of unknown aetiologies are frequent in our hospital. Poor prognosis, in our study, is due to delay to diagnosis and difficulties in medical and surgical management

[Chronic gastritis in children]

Active gastritis, atrophic gastritis [AG] and intestinal metaplasia are lesions associated with Helicobacter pylon [H. pylon] infection in adults. To assess the prevalence of chronic gastritis, its histological characteristics and clinical features in children. 345 children [M/F: 151/194, mean age: 8.6 +/- 3.7 years; range: 1-18 years] were enrolled, referred for upper gastrointestinal endoscopy [UGI endo] with clinical manifestations of gastritis, i.e., recurrent abdominal pain [n=232, 67.2%], upper gastrointestinal bleeding [n=59, 17.1%] and miscellaneous [n=53, 15.3%]. Four per-endoscopic gastric biopsy specimens [antrum: 2, fundua: 2] were taken. Biopsies were assessed and graded according to the updated Sydney system. H. pylon infection was considered if 2 out 3 tests were positive [culture, histology and rapid unease teat], whereas 3 concordant negative results identified H. pylon negative children. H. pylon infection and chronic gastritis were detected in 215/345 [62.3%] [M/F. 104/1 17, sex ratio M/F=0.89] and 221/345 [64.05%] children, respectively. Recurrent abdominal pain [n=149, 67.4%] was the main clinical features of chronic gastritis followed by vomiting [n=43, 19.5%] and upper gastrointestinal bleeding [n=4l, 18.6%]. Any clinical features were however found to be specific. UGI endo showed; nodular gastritis [n=90, 40.72%], congestive gastnitis [n=84, 38%], gastric ulcer [n=9], bulbar ulcer [n=5] and normal [n=47, 21 2%]. Chronic gastritis was active in 115 cases [52%] and was significantly associated with nodular gastritis [p<0.05]. Thirty two chronic gastnitis [14.4%] exhibited AG [M/F: 16/16, mean age: 9.4 +/- 3.4 years] and 30/32 [93.7%] were H. pylon positive. AG was significantly associated with H. pylon infection [p<0.0001] and nodular gastritis [p<0.005]. Active, follicular and AG were significantly associated with H. pylon infection [p <0.00001]. Three patients exhibited intestinal metaplasia. Chronic gastnitis is frequent in children. Any clinical features were found to be specific. It significantly associated H. pylon infection and nodular gastnitis. Atrophic gastnitis was found in 145%of children

kyste hydatique du poumon chez l'enfant a propos de 54 cas

The purpose of this retrospective study is to clarify the clinical, radiological and evolutionary aspects of the hydatid cyst of the lung. Over a period of 9 years [January, 1983 - December, 2001], we brought together in the pediatric service B of Children's hospital of Tunis, 54 cases of hydatid cyst of the lung. The average age is of 7 years 3 months [extremes 2 and 14 years], and the sex- ratio of 1, 16. 61% of the children are of rural origin. Bronchpulmonary infection is the most frequent circumstance of discovery [72% of cases], hemoptysis is revealing in 37% of cases. Discovery is fortuitous in 7% of cases. The radiography of the chest is of a big diagnostic contribution. The radiological aspects obtained are: a homogeneous opaqueness [61%], a diverse opaqueness [26%], an image of lung abscess [22%], an aspect of floating membrane [4%], a pleural effusion [9%], and an opaqueness with growing gas [4%]. Chest echography was contributory in 77% of cases. 74% of the children were operated without complications. The others were lost

Premiere crise convulsive de l'enfant. Strategie d'exploration

We have curried out a retrospective study on 51 children aged between 2 years 3 month and 13 years in order to determine the findings and to define the indications of neuroimaging modalities in children with a first unprovoked seizure. Children who had neuroimaging studies were divided into two groups based on the results of neuroimaging normal or abnormal. We have compared the two groups according to each clinical and electroencephalographic parameters studied. Neuroimaging abnormalitie were found in 47% of cases. According to our results and literature review, we concluded that the imaging should be done if we have at least one of the criteria: an abnormal neurological examination after the seizure and focal slowing waves on the electroencephalogram