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P Foucaud

Publications and source records attributed to P Foucaud.

At least 19 recordsLinked to original sources

[Nosocomial rotavirus infections in a general pediatric ward: epidemiology, molecular typing and risk factors].

OBJECTIVES: Nosocomial rotavirus infections induce difficult problems for pediatric wards during winter epidemics. This prospective study was carried out to measure their incidence in a general pediatric ward by using epidemiological tools, clinical and molecular methods, and to examine the main factors increasing the risk of cross contamination. MATERIAL AND METHODS: The study was carried out on children, younger than three years old, hospitalized between 15 November 1996 and 1 March 1997. We examined the feces of all children for rotavirus on admission and during their hospital stay if they had developed diarrhea. The strains were typed by RNA electrophoresis. A cohort study was done to identify the factors of exposure to risk. RESULTS: Three hundred twenty-six of the 415 hospitalized infants were studied. One hundred and five were hospitalized for gastroenteritis, including 39 (37.1%) with rotavirus infection. Among 221 infants admitted without diarrhea, 11 (5.0%) had an asymptomatic community infection and nine (4.3%) developed nosocomial gastroenteritis. The only significant predisposing factor (P = 0.003) for nosocomial infection was the distance between the hospital rooms and the nurses station. Despite the low level of typing (51%), the molecular study suggested a wide diversity of nosocomial and community strains. CONCLUSION: The relatively low incidence of nosocomial infections found may be due to routine assignment to individual rooms, the isolation of infants admitted with acute diarrhea, and the policy of routine detection of asymptomatic carriers with the use of similar isolation measures for these children.

Child, Preschool↗

[Psychosomatic approach to encopresis].

Encopresis most often results from functional constipation and a behaviour disorder characterised by retention of faeces. Rarely it is a passive or active expulsion of normal faeces. It indicates a failure in the education of sphincter control, often with a preferential development of autoerotic versus relational investments. A depressive component is frequent. We propose a bidisciplinary approach with a somatic and psychological evaluation of the encopretic child from the first visit. The physical examination assesses constipation and stercoral stasis. Associated psychopathological symptoms or a pathogenic psychosocial situation must be sought. The therapeutic means must be directed towards the different etiologic features. Explanations of the physiopathology of the symptom and discussion with the child and the parents on the origin of the dysfunction must be accomplished first. A medical treatment of the constipation is generally indicated. Psychotherapy is initiated according to the background and associated psychopathological symptoms.

Age Factors↗

[Trismus and tetanus vaccine].

BACKGROUND: Tetanus immunization, mandatory in France before the age of 18 months, is usually well tolerated. Fever and local reaction at the site of injection are the most common side effects. We report a case of trismus associated with tetanus immunization. CASE REPORT: A 12-year-old boy was hospitalized for a trimus which occurred 22 h after a booster dose of tetanus polio vaccine. The spasm of masticator muscles was so severe that the patient had difficulties in elocution and feeding. A moderate fever and a hypertonia of the lower limbs were associated. The trismus resolved itself within about 5 min after diazepam intravenous infusion. After examination of the buccal cavity, a local cause was discarded. The outcome was favorable and the clinical status of the boy was still normal six months later. DISCUSSION: Although no similar cases have been published, 13 other comparable adverse events associated with four vaccines containing tetanus toxoid were reported to the manufacturer within a period of 12 years. During the same period, more than 66 millions doses of vaccines containing tetanus toxoid were distributed. Trisms appeared to be more likely reported in adults after booster doses. Onset of the symptoms was between a few hours to 15 days. Outcome was always favorable. CONCLUSION: Although trimus associated to tetanus toxoid immunization is rare and remains unexplained, physicians should be aware of this adverse event.

Adult↗

[Idiopathic peri-cerebral enlargement in infants: simple anatomical variant or hemorrhagic risk factor?].

BACKGROUND: Idiopathic subarachnoid space enlargement (ISSE) is usually regarded as a benign lesion. CASE REPORTS: Two infants, 6 and 8 months old respectively, were hospitalized for neurological disorders revealing subdural hematoma. The first one was drowsy after an apparent life threatening event. The CT scan showed a recent subdural hematoma with ISSE. The outcome was spontaneously uneventful. The second patient presented a febrile hemiconvulsion preceding a status epilepticus. The diagnosis of empyema complicating subdural hematoma with ISSE was done on MRI. Recovery occurred after a 3 week course of parenteral antibiotics and 1 year of antiepileptic treatment. In these two cases, there was no history of head injury and the retrospective study of cranial perimeter growth curves showed acceleration before the acute event. CONCLUSION: The reputation of benignity is not usurped regarding the ISSE. Nevertheless, it must be recognized as a factor furthering emergence of subdural hematoma, even in absence of injury context.

Female↗

[Severe parvovirus B19 infection in an immunocompetent child with hemophilia A].

BACKGROUND: B19 parvovirus is a widespread virus whose typical manifestations in immunocompetent children are erythema infectiosum, acute erythroblastopenia and fetal anemia. CASE REPORT: An 11 year-old immunocompetent patient with hemophilia A was referred for an hemorrhagic syndrome. Forty days after a pasteurized coagulation factor concentrates treatment, and after 12 days of treatment with solvent/detergent factor VIII concentrates, he developed fever, consciousness disorders, pancytopenia, liver cytolysis and probably minor haemophagocytic syndrome, associated with human parvovirus B19 infection. His clinical state returned to normal within 15 days. A retrospective study revealed that the patient had received every day for 12 days, one parvovirus B19 polymerase chain reaction positive batch before the occurrence of symptoms. CONCLUSION: This case highlights the possibility of severe parvovirus B19 infection transmitted by clotting factors prepared from large pools of plasma. The use of recombinant factors would allow to reduce human virus contamination, even if immune risk has to be more accurately assessed.

Anticoagulants↗

[Nasal transepithelial difference of potential in mucoviscidosis. Clinical application of the measurement].

OBJECTIVES: To demonstrate the value of nasal transepithelial potential difference measurements in the diagnosis and assessment of therapeutic effect in cystic fibrosis. METHOD: Nasal transepithelial potential difference was measured in 50 patients with cystic fibrosis (mean age 10 years) and 21 controls (mean age 8 years). RESULTS: There was a very significant increase in nasal transepithelial potential in cystic fibrosis patients (-28 +/- 8 mv) compared with controls (-8 +/- 3 mv) (p < 0.0001). The sensitivity and specificity of this test for the diagnosis of cystic fibrosis were 92% and 95% respectively. Nasal transepithelial potential difference was positively correlated with age (r = 0.43; p < 0.002) in cystic fibrosis patients but no correlation was found in controls. There was no significant difference in potential differences as a function of sex or Delta F508 genotype (homozygous vs heterozygous; Delta F508 vs non-Delta F508). CONCLUSION: These findings demonstrated the value of transepithelial potential difference in the diagnosis of cystic fibrosis and emphasized its capacity to assess the effect of new therapeutic protocols aimed at modifying C1- and Na+ ion transport. It could be particularly helpful for the interpretation of doubtful sweat tests.

Adolescent↗

[Mucoviscidosis: in children and adults].

Because the lifespan of patients with cystic fibrosis is now longer, both pediatricians and adult care physicians are involved in the health care strategy. Respiratory manifestations occur due to bronchial dilatation and chronic bronchial infection, mainly due to Staphylococcus aureus and Pseudomonas. Episodes of adult infection are frequent and death usually results from respiratory failure. Characteristically, the disease also involves exocrine pancreas insufficiency. Other intestinal tract manifestations include meconial ileus and liver disease which may reach the stage of biliary cirrhosis. Nutritional disorders are frequent. Clinically there are respiratory and digestive tract disorders, pansinusitis and frequent nasal polyposis, sometimes associated with diabetes mellitus or joint pain. Male sterility results from bilateral agenesia of the vas deferens and in the female, fertility is decreased although pregnancy is possible. Clinical presentation suggests the diagnosis which is confirmed by a sweat test and genetic analysis. Care should be provided by a centre specialized in cystic fibrosis. The main treatments rely on respiratory physical therapy, antibiotics and gastroprotected pancrease extracts.

Adolescent↗

Molecular epidemiological analysis of Pseudomonas aeruginosa strains causing failure of antibiotic therapy in cystic fibrosis patients.

A combination of esterase electrophoretic typing and analysis of the restriction fragment length polymorphism of ribosomal DNA regions (ribotyping) was used to compare 27 Pseudomonas aeruginosa strains isolated before and after two-week courses of anti-pseudomonal treatment in seven cystic fibrosis patients. A total of 12 courses of therapy were studied in which ciprofloxacin, ceftazidime, azlocillin or imipenem were used alone or in combination with tobramycin. Isolates at a count of greater than or equal to 10(6) cfu/ml of sputum were collected when there was evidence of therapeutic failure on the basis of persistence of isolates whether or not they were resistant to the antibiotic used for therapy. Emergence of resistance was observed in ten cases and failure to eradicate sensitive strains in five cases. Among the 27 isolates, eight zymotypes and five ribotypes were identified. With this typing approach, resistant post-therapy isolates were found to be identical to pre-therapy isolates in all cases but one. However, in one case an additional resistant strain was isolated after therapy besides that initially present. In all five cases in which susceptibility was still observed after treatment, pre-therapy and post-therapy isolates were indistinguishable. Using this molecular typing approach, all the strains were typable. Thus combination of esterase typing and ribotyping should improve the analysis of therapeutic failure in cystic fibrosis patients.

Azlocillin↗

[Results of dietetics and nutritional assistance in cystic fibrosis].

The development of gastric acid-protected pancreatic extracts has radically transformed the diet of patients with cystic fibrosis, who are now provided with a high-caloric, hyperproteinic and normo- or hyperlipidic diet, with a correct supplementation in minerals, vitamins and oligo-elements. Nutrition has a major influence on the course of the disease, and the evaluation of the patients' needs has already shown that these are clearly increased in cystic fibrosis. In the severe and advanced forms of the disease, when refractory anorexia is added to chronic infection, more or less sophisticated techniques of nutritional assistance, such as oral supplementations and enteral or even parenteral feeding, are carried out. These techniques not only improve the anthropometric nutritional parameters, but if they have been prescribed soon enough they also interfere with the outcome of the disease.

Cystic Fibrosis↗