Respiratory Tract Symptoms (respiratory + tract_symptom)

Distribution by Scientific Domains


Selected Abstracts


Safety and efficacy of a new extensively hydrolyzed formula for infants with cow's milk protein allergy

PEDIATRIC ALLERGY AND IMMUNOLOGY, Issue 4 2008
B. Niggemann
Cow's milk protein allergy (CMPA) is best treated by complete elimination of cow's milk from the diet. For infants with CMPA who cannot be breast-fed, formulas based on extensively hydrolyzed proteins or on amino acids are the preferred substitutes for cow's milk-based formulas. In this study, we compared the tolerance and growth of infants with CMPA who were fed a new extensively hydrolyzed formula containing lactose (eHF) with those who were fed an amino acid formula (AAF). This was a prospective, multi-center, randomized, reference-controlled study. Seventy-seven infants <12 months old with suspected CMPA were enrolled. In 66 of these, CMPA was confirmed by oral challenge in a double-blind, placebo-controlled food challenge (DBPCFC) or by a medical history of severe allergic reaction to cow's milk and a positive skin prick test. These infants were then tested for their reaction to eHF and AAF in a DBPCFC. All infants tolerated both formulas and were randomized to receive either eHF (n = 34) or AAF (n = 32) for 180 days. Growth (weight, length, and head circumference) and tolerance [skin, gastro-intestinal, and respiratory tract symptoms of allergy] were evaluated after 30, 60, 90, and 180 days. There were no significant differences between the two groups in any of the growth measurements. Length and head circumference were similar to Euro-growth standards, but weight was slightly lower. Gastro-intestinal and respiratory tract symptoms of allergy were also similar in the two groups. However, whereas SCORAD scores for atopic dermatitis remained constant throughout the study in infants-fed eHF, there was a slight decrease in those fed AAF. Infants-fed eHF had significantly fewer incidents of vomiting than infants-fed AAF and a significantly higher frequency of soft stools. The new eHF is safe and well tolerated in infants diagnosed with CMPA. [source]


Is home spirometry useful in diagnosing asthma in children with nonspecific respiratory symptoms?,

PEDIATRIC PULMONOLOGY, Issue 4 2010
Alwin F.J. Brouwer MD
Abstract Background Variation of lung function is considered to be a hallmark of asthma. Although guidelines recommend measuring it as a diagnostic tool for asthma, the usefulness of this approach has not been studied in children. Aim To assess the usefulness of home spirometry in children with nonspecific lower respiratory tract symptoms, to diagnose or exclude asthma. Methods In school-aged children, referred by their general practitioner because of chronic respiratory symptoms of unknown origin, the diagnosis of asthma was made or excluded by a pediatric pulmonologist (gold standard), based on international guidelines and a standardized protocol. Additionally, children measured peak expiratory flow (PEF) and forced expiratory flow in 1,sec (FEV1) twice daily for 2 weeks on a home spirometer, from which diurnal variation was calculated. These results (index test) were not revealed to the pediatric pulmonologist. The value of home spirometry to diagnose asthma was calculated. Results Sixty-one children (27 boys) were included (mean age: 10.4 years; range: 6,16 years). Between asthma and no asthma, the mean difference in PEF variation was 4.4% (95% CI: 0.9,7.9; P,=,0.016) and in FEV1 variation 4.5% (95% CI: 1.6,7.4; P,=,0.003). Sensitivity and specificity, based on the 95th-centile of the reference values for PEF and FEV1 variation (12.3% and 11.8%, respectively) were 50% and 72% for PEF variation and 45% and 92% for FEV1 variation. The likelihood ratio was 1.8 for PEF and 5.6 for FEV1. Conclusions The contribution of home spirometry in the diagnostic process for asthma in schoolchildren with nonspecific respiratory symptoms is limited. Pediatr Pulmonol. 2010; 45:326,332. © 2010 Wiley-Liss, Inc. [source]


Primary CMV Infections Are Common in Kidney Transplant Recipients After 6 Months Valganciclovir Prophylaxis

AMERICAN JOURNAL OF TRANSPLANTATION, Issue 9 2010
I. Helanterä
Prolonging cytomegalovirus (CMV) prophylaxis in CMV seronegative recipients of a kidney from CMV seropositive donor (D+/R,) may reduce the incidence of late infections. We analyzed late-onset primary CMV infections after 6 months valganciclovir prophylaxis. Data from all CMV D+/R, kidney transplant recipients between January 2004 and December 2008 at our center were analyzed. Patients with a functioning graft at 6 months after transplantation who received 6 months of valganciclovir prophylaxis 900 mg once daily were included (N = 127). CMV was diagnosed with quantitative PCR. Prophylaxis was completed in 119 patients. Prophylaxis was stopped at 3,5 months due to leukopenia or gastrointestinal side effects in eight patients. Late-onset primary CMV infection developed in 47/127 (37%) patients median 244 days after transplantation (range 150,655) and median 67 days after the cessation of prophylaxis (range 1,475). Four infections were asymptomatic. In others, symptoms included fever (N = 28), gastrointestinal symptoms (nausea, vomiting, diarrhea) (N = 24), respiratory tract symptoms (N = 12), and hepatopathy (N = 6). Median peak viral load was 13500 copies/mL (range 400,2 831 000). Recurrent CMV infection developed in 9/47 (19%) patients. No significant risk factors for CMV infection were identified. Symptomatic primary CMV infections were commonly detected also after prolonged valganciclovir prophylaxis. [source]


Clinical findings associated with abnormal lung function in children aged 3,26 months with recurrent respiratory symptoms

ACTA PAEDIATRICA, Issue 8 2010
AS Pelkonen
Abstract Aim:, To evaluate whether there are any associations between parentally reported symptoms, clinical findings and lung function in young children with recurrent lower respiratory tract symptoms. Methods:, In 2000,2003, 148 children, aged 3,26 months, with recurrent lower respiratory tract symptoms underwent physical examination, investigation of a chest radiograph, whole body plethysmography and skin prick testing to common food and inhalant allergens. Results:, Lung function was considered abnormal (i.e. functional residual capacity z -score of ,1.65 and/or specific conductance z -score of ,,1.65) in 83 (56%) children. Findings of increased work of breathing (p < 0.001) and nonspecific noisy breathing sounds (p < 0.001) in the physical examination, as well as an abnormal chest radiograph (p = 0.028) were independently associated with abnormal lung function, explaining up to 34% of the variation in lung function. In contrast, parentally reported respiratory symptoms, environmental exposures or atopic trait were not associated with lung function abnormalities. Conclusion:, The results of this study emphasize the importance of the meticulous clinical examination in the evaluation of early childhood respiratory disorders. As physical examination alone cannot predict lung function abnormalities reliably in preschool children with troublesome respiratory symptoms, lung function testing may be considered in such patients to obtain additional objective information. [source]


Oralfacialdigital-like syndrome with respiratory tract symptoms from birth and ultrastructural centriole/basal body disarray

ACTA PAEDIATRICA, Issue 7 2007
Unne Stenram
Abstract A girl with polydactyly has had respiratory tract problems, including atelectasis, since birth. She has a high arched palate, a tongue hamartoma and dysmorphic face. Electron microscopy of nasal and bronchial brush biopsies repeatedly revealed centriole/basal body disarray and extreme sparseness of cilia. At the age of 2 years and 11 months, she displayed retardation of both motor and mental skills. Conclusion: The manifestations tally with a ciliopathy, partly with the Bardet--Biedl syndrome (BBS) but especially with the oralfacialdigital syndrome (OFDS); however, with the addition of persistent respiratory tract problems. As these two syndromes are considered to be due to mutations affecting the centriole/basal body apparatus, the ultrastructural demonstration of disarray of these structures, never before demonstrated in such a patient, is of fundamental interest. [source]