Can methadone concentrations predict the severity of withdrawal in infants at risk of neonatal abstinence syndrome?

AIM: To assess the usefulness of cord and serum methadone concentrations at 2 days of age in predicting the severity of neonatal abstinence syndrome (NAS) in infants whose mothers received methadone during pregnancy. METHODS: After informed consent, infants were enrolled if they were delivered at 35 weeks gestation or greater. Relevant information was collected from maternal notes. A sample of cord blood was taken at delivery, with a follow up sample at 48 hours of age. The samples were analysed in batches, and the results were unavailable to the attending clinical staff. Infants were treated for NAS on clinical grounds according to a standardised scoring system. RESULTS: Twenty five of 36 eligible infants over the 21 month period of the study were enrolled. Of these, 12 required treatment for NAS. Maternal methadone dose did not predict the need for treatment. However, infants who required treatment had significantly lower methadone concentrations in cord blood than the group who did not receive treatment (31 v 88 ng/ml respectively; p = 0.029). Paired blood samples for methadone concentrations were available for 17 infants. All but one of the 12 infants who required treatment had undetectable concentrations of methadone in the postnatal sample, whereas the median postnatal methadone concentration in untreated infants was 23 ng/ml (p = 0.002). CONCLUSIONS: Methadone concentrations taken from cord blood may identify infants at greater risk of neonatal withdrawal and therefore requiring treatment.     

Can medical education rise to the challenge of the African crisis?

In the face of the worsening health crisis in Africa, educationalists there and beyond are challenged to identify their role in resolving the crisis. The training of doctors has to be re-orientated so that they are well equipped to lead the way towards improving the health situation and effectively participating in improving the general condition of the people. This can be achieved by medical schools having control of their duties and functions and using these powers to train doctors who are community-orientated, able to identify clinical and epidemiological problems and find suitable solutions. Doctors of the future should be comfortable working in the community with other members of health teams and confident in addressing all health-related matters in the community. During their formative years in medical school they should acquire the skills to continue self-education. This paper discusses some of the important steps that should be taken by medical schools, taking into account the present situation in Africa.     

Can near infrared spectroscopy of the liver monitor tissue oxygenation?

Measurement of the hepatic oxygenation index by near infrared spectroscopy is a suitable method to estimate the oxygenation and can be a non-invasive means to continuously monitor tissue perfusion and to detect early haemodynamic disturbances in critically ill children.     

Can parents predict the severity of childhood obstructive sleep apnoea?

OBJECTIVE: To determine whether parents' observations can be used to predict the severity of the obstructive sleep apnoea syndrome (OSAS) in children. STUDY DESIGN: Sixty-five children with OSAS diagnosed by overnight polysomnography were consecutively recruited and classified as having severe or non-severe OSAS according to the obstructive apnoea index (OAI) and the oxygen saturation measured by pulse oximetry (SpO2) nadir. Parents were asked to complete a questionnaire about the child's breathing difficulties at night. RESULTS: Twenty-eight patients were classified as severe OSAS and 37 as non-severe OSAS. There were no differences between the two groups with respect to age, sex or body mass index. Male to female ratio was 5:1. Parents of children with severe OSAS more frequently reported observed cyanosis (35 vs 8%; p=0.02); obstructive apnoea (60 vs 35%; p = 0.04); snoring extremely loudly (52 vs 22%; p = 0.01); shaking the child (64 vs 35%; p = 0.02); watching the child during sleep and being afraid of apnoea (85 vs 60%; p = 0.03). However, neither any single nor combinations of observations showed high values for both sensitivity and specificity. CONCLUSIONS: Although some parents' observations are more frequently reported in children with severe OSAS, neither any single nor combinations of observations accurately predict the severity of OSAS. Polysomnography is still needed to determine the severity of obstruction.     

Can the administration of antithrombin III decrease the risk of cerebral hemorrhage in premature infants?

This study was carried out to determine whether the administration of antithrombin III decreases the risk of intraventricular hemorrhage in premature infants. In a randomized study, 60 infants born before 30 weeks of gestation were assigned to receive a loading dose of antithrombin III or placebo. There was no significant difference in the incidence of intraventricular hemorrhage between the antithrombin III and the placebo group (27.5 vs. 32%). Partial thromboplastin time, Quick's prothrombin time and platelet count were also not significantly different between the 2 groups. We conclude that the administration of antithrombin III during the first 2 days of life does not decrease incidence of intraventricular hemorrhage. Antithrombin III is a very expensive therapy and its benefits should be carefully investigated before being recommended as valuable therapy.     

Can growth hormone counteract the effects of glucocorticoids on protein metabolism?

Beaufrère B. Can growth hormone counteract the effects of glucocorticoids on protein metabolism? Acta Pædiatr 1999; Suppl 428: 97–9. Stockholm. ISSN 0803–5326
The size of the body's protein pool depends on the equilibrium between protein synthesis and breakdown. Glucocorticoids, the most potent catabolic hormones, act primarily by increasing protein breakdown, both in muscle and at the whole-body level. Growth hormone (GH) counteracts the catabolic effects of glucocorticoids by stimulating protein synthesis. Part of its effects are mediated via insulin-like growth factor I (IGF-I). The effects of combined GH-IGF-I treatment are discussed. □ Glucocorticoids, growth hormone, insulin, insulin-like growth factor I, protein breakdown, protein synthesis     

Can we recognize childhood hypertension without the use of reference tables?

Tijdschrift voor Kindergeneeskunde -     

Can we alter the natural history of Crohn disease in children?

The natural history of Crohn disease is characterized by recurrent bouts of active disease, the consequences of which can severely impair sufferers' physical and social functioning. Not only does the illness cause day-to-day morbidity for children but the consequence of the chronic inflammatory process also commonly results in the need for major intestinal surgery. The present challenge facing physicians treating children with Crohn disease is to alleviate symptoms and prolong periods of remission via the use of specifically targeted therapies while minimizing toxicity and promoting normal growth and development. Although systemic corticosteroids are effective in inducing clinical remission, they are of little or no benefit in maintaining remission and can contribute to linear growth retardation. Immunomodulating drugs such as azathioprine, 6-mercaptopurine and methotrexate have proved effective for inducing and maintaining remission of active Crohn disease. These agents are now commonly prescribed in children at diagnosis, after a severe attack or after surgery or in those who become corticosteroid-dependent or corticosteroid-resistant. Their use is not without potential adverse effects and not all patients respond well to these agents. With the introduction of biologic agents, notably the tumor necrosis factor-alpha monoclonal antibody infliximab, progress has been made in targeting specific pathogenetic mechanisms of Crohn disease and potentially altering the underlying disease process. Published experience in children is currently limited, but infliximab has been shown to improve symptoms and achieve corticosteroid independence in this age group. Unresolved issues with infliximab and other emerging biologic agents, including long-term safety, necessitate a degree of caution in selecting appropriate patients for treatment and with careful monitoring of their effects. The collection of contemporary natural history data is crucial to facilitate the better integration of current and emerging therapies in an attempt to alter the natural history of Crohn disease in children.     

Can growth hormone counteract the effects of glucocorticoids on protein metabolism?

The size of the body's protein pool depends on the equilibrium between protein synthesis and breakdown. Glucocorticoids, the most potent catabolic hormones, act primarily by increasing protein breakdown, both in muscle and at the whole-body level. Growth hormone (GH) counteracts the catabolic effects of glucocorticoids by stimulating protein synthesis. Part of its effects are mediated via insulin-like growth factor I (IGF-I). The effects of combined GH-IGF-I treatment are discussed.     

Can cry in the newborn be used as an assessment of pain?

Pain in the neonate is a complex subject. The assessment of pain should be simple and clinically usable. So far, the scales that have been used to assess pain are too time consuming and complex. The analysis of cry in a simple manner, as described in this issue of Acta Paediatrica by Bellieni et al., could be used in a simple and effective way at the bedside.

Conclusion: Since sick and premature newborns are not studied, the scale needs further confirmation.