Hepatitis B vaccination coverage among Iranian children aged 15-26 months in 2006

This study in 2006 estimated the hepatitis B virus (HBV) vaccination coverage in the Islamic Republic of Iran at the national and district levels in urban, rural and remote populations of 41 university health service areas. Of 21 905 children recruited to the study, vaccination coverage based on vaccination card records was 100% in 14, 15 and 10 of the 41 university areas for the 1st, 2nd and 3rd doses of HBV respectively. National levels of HBV1, HBV2 and HBV3 coverage were 98.9%, 98.8% and 98.4% respectively. The lowest HBV vaccination coverage rate was 90.7% (in a remote district). HBV vaccination coverage was at an acceptable level in Iranian children

Intermittent Clonazepam in The Prevention of Recurrent Febrile Seizures

ObjectiveTo evaluate the efficacy and common side effects of intermittent clonazepam in febrile  seizures.Materials & MethodsThis study was an experimental trial designed to determine the efficacy of intermittent clonazepam in febrile seizures .Thirty patients with an age range of 6 months to 5 years (60% male, 40% female) were studied. Children with a history of psychomotor delay, abnormal  neurological examination, a history of antiepileptic drug consumption, and afebrile seizures were excluded from the study. Patients received a single dose of prophylactic Clonazepam (0.05 mg/kg/ day) on the first day of febrile illness and twice daily during the course of fever.An antipyretic medication (Acetaminophen) was advised if fever exceeded 38oC. Patients were followed up for one year after the study inclusion date.ResultsThree patients were excluded from study since they didnot follow the tritment and three patients experienced afebrile seizures. Twenty four patients had 162 febrile episodes during the course of the study and all patients were seizure-free after 1 year.ConclusionClonazepam was 100% effective but lethargy and ataxia were common side effects in patients. Fortunately, their parents continued treatment because they had prior awareness of the  possible side effects of clonazepam. Clonazepam is efficacious as an intermittent therapy for febrile seizures if parents are informed of its side effects.

The effect of baby walker on child development: a systematic review

Abstract:Baby walkers are used all around the world as a fun equipment without any dangers. In contrast with public beliefs, some researchers have claimed they can cause developmental delay. We aimed to investigate their effect on child development through a systematic review. We searched Pubmed, Google Scholar, Embase, and Scopus for related articles in English and included all study designs. Of 315 articles found in Pubmed, 1630 citations in Google Scholar, 18 articles in Embase, and 38 papers in Scopus, only 9 articles fulfilled the inclusion criteria. Among them, only a cohort and a cross-sectional study reported developmental delay caused by baby walker use. Based on the current data, evidence against baby walker is not enough regarding its negative effect on child development. This subject needs to be addressed more, considering the large number of baby walker users worldwide

Effect of baby walker use on developmental status based on Ages and Stages questionnaire score

 AbstractObjectiveBaby walker is a popular device which parents use for entertainment, keeping infants safe and walking promotion. Some studies showed developmental delay in baby walker users though others reported no significant effect on development in this group. We designed this study to determine whether baby walker usage has any effect on development by using Ages and Stages Questionnaire (ASQ).  Materials & MethodsWe evaluated 107 one-year-old infants in each baby walker user group and non-users (total number of 214 participants) by using ASQ test of 12-month. We re-evaluated 168 infants at age 18-month by using ASQ test of 18-month. The data of these groups was compared.  ResultsGirls use baby walker more frequently (p=0.02). Baby walker usage was not significantly associated with parent’s educational state, mother employment, birth rank of infant and delivery method. The starting age of baby walker use was 6.61 ± 1.46 months. ASQ results in area of gross movement and fine movement were not significantly different in users and non- users at age 12 and 18 month.  ConclusionMost parents believe baby walker can promote earlier walking, but based on current evidences this belief might not be true. Although most studies showed no developmental delay in baby walker users, parents should become aware about their possible negative effects and hazards

The effect of strong ambient winds on the efficiency of solar updraft power towers: a numerical case study for Orkney.

Solar updraft tower (SUT) is a simple power plant in which ventilation of heated air inside a channel drives a turbine. This system is recognised as suitable for areas with abundant solar radiation. As a result, there is no extensive research on the performance of SUTs under mild solar radiation. Studies show that strong ambient crosswinds can affect the performance of a SUT. In this paper, the efficiency of SUTs in areas which benefit from strong winds, despite low solar radiation, is investigated through numerical modelling. Comparison is made between the efficiency of a commercial-scale SUT in Manzanares (Spain) with intensive solar radiation, and one of the same size potentially located in the windy and mild climate of Orkney Islands in Scotland. The results show that ambient crosswinds can increase internal air speed and efficiency of a SUT by more than 15% and 50%, respectively. Consequently, such a SUT in Orkney can offer more than 70% of the efficiency of the one in Manzanares. The results show that, for a given power capacity, a wind turbine enclosed in a SUT can be considered as an alternative to a number of conventional wind turbines installed at height in the open air

L-carnitine versus Propranolol for pediatric migraine prophylaxis

  Objective Carnitine plays a significant role in fatty acid transportation in mitochondria and has been shown to have a prophylactic effect on adult migraine. The aim of this randomized controlled trial was to compare and evaluate the effects of L-carnitine supplementation versus propranolol in the prevention of pediatric migraine. Materials & Methods A total of 60 pediatric patients with episodic migraine were randomly allocated to 2 independent groups to receive either 50 mg/kg/day L-carnitine or 1 mg/kg/day propranolol as a prophylactic drug. Frequency, severity, and duration of migraine attacks and headache disability based on the Pediatric Migraine Disability Assessment Score (PedMIDAS) were studied at the baseline and after 2, 4, and 12 weeks. Results A total of 56 patients were evaluated in the study: 23 girls (41%) and 33 boys (59%) with a mean age of 9.7 ± 2.1 years. Frequency of migraine headaches per month reduced from 11.4 ± 7.1 to 5.34 ± 2.4 in the L-carnitine group and from 10.7 ± 6.2 to 4.96 ± 3.9 in the propranolol group by the end of the study. Headache severity score was also reduced from 19.38 ± 14 to 2.88 ± 7.4 and from 12.92 ± 13 to 0.82 ± 1.3 in the L-carnitine and propranolol groups, respectively. We found a significant decrease in frequency, severity, and duration of headache attacks in both groups (P < 0.01). No significant difference was observed between the efficacies of the 2 drugs. Conclusion This study concluded that L-carnitine supplementation can play a prophylactic role in the management of pediatric migraine