The association between Sodium Urinary Discharge (FENa) and growth parameters in pediatrics with cystic fibrosis

BACKGROUND

Given the association between chronic sodium losses and growth parameters and establishment of normal weight gain and linear growth in patients with cystic fibrosis (CF), in this study, we aimed to evaluate the sodium status in Iranian CF patients and its association with their growth parameters.

METHODS

In this prospective cross-sectional study, 44 children with CF were included. Serum and urinary sodium and creatinine levels were measured in patients, and the fractional excretion of sodium was calculated. The patients categorized in groups with FENa <0.5%, between 0.5% and 1.5% and >1.5%. Growth parameters were compared in the group, and its association with FENa level was evaluated.

RESULTS

In this study, 44 (27 boys and 17 girls) children with CF were included. Mean age of the studied population was 55.63 (33.2) months. In the studied patients with CF, 90.9% had a z score of -2_+2 (normal range) for BMI, 72.7% for weight, and 70% for height. From children with CF, 18 (40.9%) had FENa less than 0.5, 17 (38.6%) had FENA between 0.5-1.5, and 9 had FENa >1.5. From studied patients with CF, 16 (88.9%) had normal serum Na levels, but the FENa was ≤0.5. Based on the Spearman correlation test, there was not any significant correlation between FENa classification and the Z score of weight (P=0.92), height (P=0.83), and BMI (P=0.99).

CONCLUSION

Our findings indicated that most patients with a low level of FENa had normal serum sodium levels. We did not find a significant association between FENa and growth parameters. The association had a trend to be significant for BMI. It is suggested that it may be due to appropriate follow-up of the studied population. However, it is recommended to plan more studies by including healthy subjects to obtain results that are more accurate.

The Efficacy of an Oral Formulation of Glycyrrhiza glabra, Viola odorata, and Operculina turpethum as an Add-on Therapy for Mild-to-moderate Childhood Asthma: A Randomized Placebo-Controlled Clinical Trial

Objective

We aimed to evaluate the efficacy of an oral combined tablet of Glycyrrhiza glabra, Viola odorata, and Operculina turpethum (Anti-Asthma^®) as an add-on therapy for the relief of the severity of symptoms in mild-to-moderate childhood asthma.

Methods

This randomized placebo-controlled clinical trial was performed on 60 children and adolescents with chronic mild-to-moderate childhood asthma. Patients were randomly divided into cases who received Anti-Asthma^® oral combined tablets 2 tablets twice dailt for 1 month and controls, received placebo tablets identically the same to Anti-Asthma^® (2 tablets, twice daily, for 1 month) as add-ons to their standard therapy according to the guideline. The severity and frequency of cough attacks and shortness of breath, respiratory test indices (based on spirometry), and the extent of disease control and treatment adherence were measured clinically by validated questionnaires at the beginning and after the study.

Findings

Respiratory test indices improved and the severity of activity restriction decreased significantly in the cases compared to the controls However, the mean difference before and after the study was significantly different between the cases and controls only for the number and severity of coughs and the severity of activity restriction. In the scores of the Asthma Control Questionnaire, the cases group had a significant improvement compared to the controls.

Conclusion

Anti-Asthma^® oral formulation may be effective as an adjunct add-on treatment in the maintenance therapy of mild-to-moderate childhood asthma.

Evaluation of growth hormone deficiency in children with cystic fibrosis

Background:

Due to chronic respiratory and gastrointestinal problems, growth failure is a common issue in patients with cystic fibrosis (CF). The present study aimed to investigate the prevalence of growth hormone deficiency (GHD) in CF children with stable gastrointestinal and respiratory conditions.

Materials and Methods:

In this study, the growth indicators of all 4–16-year-old children referred to two CF clinics were monitored over 3 years. Children without severe gastrointestinal or pulmonary symptoms with weight <3% percentile or whose height increase were two standard deviations below their expected height growth over 6 months were selected for the growth hormone (GH) stimulation test by clonidine and L-dopa test. Some of the children without CF, who were also referred for height growth disorders and matched the CF group, were considered the control group. They underwent the GH stimulation test, and the results were compared.

Results:

From 150 patients with CF, growth failure was observed in 24 patients with stable gastrointestinal and respiratory conditions; in 10 of them, the GH stimulation test was deficient. The prevalence of GHD was 6.6% in CF patients. In the control group of 30 children without CF, but with growth failure, the GH was deficient in nine cases, implying no significant difference with the case group (P = 0.37).

Conclusion:

In our study, the prevalence of GHD was 6.6% in CF patients, whereas the prevalence GHD in the normal population of childhood is <1%. Therefore, further studies should be designed to investigate the cause of GHD in CF patients.

Correlation between Stable Hyperglycemia and Mortality in Children Admitted to the Pediatric Intensive Care Unit of Imam Hossein Hospital

Background:

Stress-induced hyperglycemia is an important issue among pediatrics admitted in the pediatric intensive care unit (PICU). Former studies have declared that hyperglycemia has a high prevalence rate and could increase the risks of mortality among pediatrics. Here, we aimed to investigate the prevalence rate of hyperglycemia and its effects on mortality among pediatrics in the PICU of the hospital.

Materials and Methods:

This cross-sectional study was performed in 2018–2019 on 88 patients admitted in PICU. Data regarding blood sugar (BS) and other clinical and laboratory parameters were collected. Hyperglycemia was accounted for as BS of >126 mg/dl. Hyperglycemia was divided into: mild (126 <BS <150), moderate (150 <BS <200) and severe (BS >200). The pediatric risk of mortality (PRISM) score was also calculated for each patient during the first 24 h.

Results:

Thirty patients (34.1%) had persistent hyperglycemia and 58 patients (65.9%) had normal glycemic indexes. Eleven patients (12.5%) had mild, 9 patients (10.2%) had moderate, and 10 patients (11.4%) had severe hyperglycemia. The prevalence of mortality was 5.7% among hyperglycemic patients and 6.8% among normal glycemic pediatrics. There were no statistically significant differences regarding mortality rate (P = 0.499). The mean PRISM score for normal glycemic patients was 7.03 ± 5.18 and for patients with hyperglycemia was 7.36 ± 6.37.

Conclusion:

Hyperglycemia has no significant effects on mortality and PRISM score of pediatrics in PICU, despite of the previous studies. The frequency of hyperglycemia was also 5.7% among the patients admitted in PICU.

The fractional excretion of sodium in patients with cystic fibrosis treated with oral sodium chloride

Background: Cystic Fibrosis (CF) is a chronic disease associated with low sodium status. The patients are usually treated with oral sodium chloride to control the side effects of low sodium status. Therefore, the fractional excretion of sodium (FE_Na) was assessed in patients with cystic fibrosis (CF) treated with oral sodium chloride (NaCl). Methods: This was a prospective cross-sectional study that was conducted on forty children with cystic fibrosis who were under treatment with oral NaCl and were referred to Imam Hossein Hospital-Isfahan-Iran between 2017 to 2019. The patients were under treated with 2-4 mEq/kg per day oral NaCl and urinary and plasma sodium and creatinine, as well as FE_Na, were assessed after three months of taking NaCl. Also the patients were compared in terms of efficacy of treatment based on sodium level (between 135 and 145 mmol/L) and acceptable FE_Na level (between 0.5% and 1.5%). The sensitivity and specificity of FeNa and plasma sodium were assessed with ROC curve test. Results: Plasma sodium was normal in 65% of treated patients, and FE_Na was also normal range in 47.5% of treated patients. The treatment also was desirable for 35% of the patients. The sensitivity and specificity of FeNa were 42.9% and 57.7%, respectively, and the sensitivity and specificity of plasma sodium were 85.7% and 26.9%, respectively. Conclusion: Using of plasma sodium had higher sensitivity than FeNa and FeNa had higher specificity than plasma sodium to follow up of patients with CF.

Cost-effectiveness of home mechanical ventilation in children living in a developing country

BACKGROUND

Home mechanical ventilation is a promising option for children requiring long-term mechanical-assisted ventilation, while data on cost-effectiveness of this approach is limited.

AIMS

To investigate the cost-effectiveness of home mechanical ventilation in children requiring long-term mechanical-assisted ventilation.

METHODS

A retrospective cohort was conducted on 67 children (32 girls, 47.7%) requiring mechanical-assisted ventilation. Underlying diseases of children were congenital airway malformations in 24, cystic fibrosis in 4, severe laryngomalacia in 16, poly neuropathy syndrome in 6, mitochondrial myopathy in 5, hypoxic ischemic encephalopathy in 6, and cerebral palsy in 2. Children were admitted in pediatric intensive care units (ICU) for 2 weeks. After discharge, they were on home mechanical ventilation and were followed for 1 year. Data on daily costs of admission at ICU, rehospitalizations, weaning, educational performance and muscle strength were gathered.

RESULTS

Mean age of children at time of initiation of mechanical-assisted ventilation was 5.8 years (ranged from 2 months to 15 years). Mean number of re-hospitalizations was 3.4_4.9 times with mean duration of 9.44_2.53 days. Of children on mechanical ventilation, 1 attended school, 2 were weaned, and 21 experienced improvement in muscle strength. No fatal or serious complications were observed while children were on home mechanical ventilation. Mean costs of daily ICU admission was 912_1028 $, while the mean daily cost of home mechanical ventilation was 60.86_4.95 $ (p < 0.001).

CONCLUSIONS

Home mechanical ventilation is more cost-effective compared to ICU admission for only mechanical-assisted ventilation. < p > < /p >.

First Cystic Fibrosis Patient Registry Annual Data Report-Cystic Fibrosis Foundation of Iran

Abstract- Cystic fibrosis (CF), as a fatal genetic condition, is associated with high morbidity and mortality rates. In Iran, limited studies exist on this disease. This study aimed to compare the demographic, clinical and paraclinical data of CF patients. This cross-sectional study was conducted in 2014-2015 on 174 CF patients referred to the Tehran Children Medical Center hospital, which is the main referral center for CF. For each patient, the forced expiratory volume in one second (FEV1) was measured, and the comparative demographic, clinical, and laboratory data of patients were recorded. Overall, 59% of studied patients were boys (n=102) and 41% were girls (n=72). The mean patient age (and standard deviations) was 7.1±5.7 years, with a range of 10 days to 28 years. In 67% of cases, the disease was diagnosed before their first birthday. The patients in this study were classified based on the FEV1 into mild (62%), moderate (33%) and severe (5%), indicating the degree of pulmonary complications. Cultures of respiratory secretions were positive for Pseudomonas aeruginosa and Staphylococcus aureus, in 23% and 16% of cases, respectively. In total, 61% of patients (n=83) were assigned to receive oral azithromycin for prophylaxis. Gastroesophageal reflux (reflux) was the most common gastrointestinal complication (35%). Regarding the complex nature of CF and the necessity of constant monitoring of patients during the life-span, the comparative demographic, clinical and laboratory analysis of patients and registering and standardization of patients’ data can be a major step in the better understanding of the disease, and thereby increasing the quality of life and life expectancy in the affected population.

Comparison of Interleukin-33 Serum Levels in Asthmatic Patients with a Control Group and Relation with the Severity of the Disease

BACKGROUND

The relation between interleukin-33 (IL-33) and asthma is not precisely known yet. The present study set to compare the serum level of IL-33 in patients with asthma and controls and study the relation with the severity of disease.

METHODS

The serum level of IL-33 and total IgE in 89 asthmatic patients and 57 controls were analyzed. The association of levels of IL-33 with the severity of disease, levels of total IgE, measures of spirometry (forced expiratory volume in 1 s [FEV1]), age, sex, presence or absence of other allergic diseases, and the disease duration was evaluated.

RESULTS

Higher levels of IL-33 and total IgE were detected in asthmatic patients compared with controls (P = 0.0001 and P = 0.008, respectively). In the asthmatic group, a significant direct association of IL-33 with age (P = 0.02, R = 0.23) and with total IgE level (P = 0.003, R = 0.31) were observed, but there was no relationship between other variables. Comparison of mean level of IL-33 in different asthma groups concerning the disease severity showed the statistically significant difference between them and a significant increased serum level of total IgE was observed in more severe disease. The results showed a significant negative correlation between FEV1 and total IgE (P = 0.028, R = -0.23) and IL-33 level (P = 0.0001, R = -0.83).

CONCLUSIONS

IL-33 is suggested as a new inflammatory marker of severe and refractory asthma. Therefore, it may be a unique therapeutic target in these patients.

Cystic fibrosis prevalence among a group of high-risk children in the main referral children hospital in Iran

BACKGROUND

Knowledge about cystic fibrosis (CF) in Iran is very limited. The objective of this study was to determine the prevalence of CF among a group of high-risk children with suggestive clinical features in the main referral hospital in Iran.

MATERIALS AND METHODS

This study children consisted of 505 patients who had presented with one or more of the following symptoms: chronic or recurrent respiratory symptoms, gastrointestinal symptoms as rectal prolapse, steatorrhea, hepatobiliary disease as prolonged jaundice, failure to thrive, hyperglycemia and glycosuria, hypochloremic metabolic alkalosis, hypoprothrombinemia, anemia or edema, and positive family history of CF. Patients were screened using pilocarpine iontophoresis to collect sweat and chemical analysis of its chloride content with classic Gibson and Cooke technique.

RESULTS

Of 505 patients, 89 (17.6%) had positive sweat chloride screening test. Five (1%) patients had required cystic fibrosis transmembrane conductive regulator protein mutation analysis to confirm CF.

CONCLUSION

Our findings suggest that in Iran, CF is more common than what previously anticipated. Larger studies are warranted to identify the incidence, molecular basis, and clinical pattern of CF in the Iranian population.

Urine interlukein-8 as a diagnostic test for vesicoureteral reflux in children

BACKGROUND

Vesicoureteral reflux (VUR) is a common finding in children with urinary tract infection (UTI), mostly diagnosed by voiding retrograde cystogram (VCUG). Children with VUR are at higher risk of renal damage with recurrent infections. Detecting VUR and renal scarring currently depends on imaging modalities with interventional invasive diagnostic methods. Noninvasive methods would greatly facilitate diagnosis and also help in identifying VUR in siblings of index cases who should be screened. Various imaging and biochemical methods with different specificity and sensitivity have been presented as substitute diagnostic tool for VCUG to identify VUR. Interleukin-8 (IL-8), a chemokine produced by damaged epithelial cells of the renal tract in response to inflammation, has been shown to increase during acute UTI. We have scarce data considering the cut point of urine IL-8 as a diagnostic method of VUR in children. The objective of this study was to assess the urine levels of IL-8 as a noninvasive marker of VUR in infants in the absence of a recent UTI episode.

METHODS

This cross sectional study was conducted on28 patients with UTI and VUR (group 1), 28 patients with VUR and without UTI (group 2), and 28 healthy children/infants(control group)in St. Alzahra hospital, Esfahan, from January 2009 until March 2010.. Urine IL-8 level was measured for all children. The data was analyzed by SPSS soft ware version 17. The t-student test, ?2, and ANOVA were used as statistical method.

RESULTS

The mean age of group 1, group 2 and control group were 4.3 +/- 2.9, 4 +/- 2.6 and 4 +/- 2.1 years respectively, p > 0.05. The mean level of IL-8 in group 1 was significantly higher than group 2 and control group 10 +/- 14.8 versus 6.5 +/- 8.4, and 2.9 +/- 4.5 respectively (P = 0.039).

CONCLUSIONS

Although urinary IL-8 may be helpful in determining high grade VUR, but the results of this study showed that the sensitivity, specificity, PPV, and NPV of this marker were not satisfactory in cutoff point of 5 pg/pmol and other variables must be controlled.