Publications by authors named "Finbar J K O'Callaghan"

Objective: To report a prospectively planned analysis of two randomised controlled trials with embedded comparisons of prednisolone versus tetracosactide depot for the treatment of infantile epileptic spasms syndrome (IESS).

Methods: Individual patient data from patients randomly allocated to prednisolone or tetracosactide depot were analysed from two trials (UKISS, ICISS). The comparison was embedded within trials in which some patients also received vigabatrin but only patients receiving monotherapy with randomly allocated hormonal treatments are included in this analysis.

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Background: Tuberous Sclerosis Complex (TSC) is a genetic disorder characterised by the development of benign tumours secondary to loss of inhibitory regulation of the mTOR (mechanistic Target of Rapamycin) intracellular growth pathway. Metformin inhibits the mTOR pathway. We investigated whether metformin would reduce growth of hamartomas associated with tuberous sclerosis complex.

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  • A study examined the causes and treatment responses in 377 infants with infantile spasms, finding that 58% had a known underlying cause, with varying response rates to different treatments.* -
  • Infants with strokes showed better treatment responses (82%) compared to other causes (56%), and those with Down syndrome had similar response rates across treatment types, indicating no significant advantage from adding vigabatrin.* -
  • The findings highlight the importance of classification for comparing outcomes and suggest that specific underlying conditions may be linked to better or different responses to treatment in infantile spasms.*
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  • The International Collaborative Infantile Spasms Study (ICISS) found that using a combination of vigabatrin and hormonal therapy was more effective than hormonal therapy alone in treating infantile spasms during the first 14 to 42 days of treatment.* -
  • The follow-up study aimed to determine if this combination therapy also led to better developmental and epilepsy outcomes for infants at 18 months of age.* -
  • The trial involved multiple hospitals across several countries, using a randomized controlled design to compare therapies, and assessed outcomes using measures such as the Vineland Adaptive Behaviour Scales and seizure frequency.*
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Purpose: This text provides an overview of how the condition "infantile spasms" has evolved in the last 175 years.

Method: Key references are summarised to assimilate this review.

Results: Infantile spasms, first described by Dr West in 1841, has undergone extensive investigation to understand the pathogenesis, aetiologies, optimal intervention and most likely prognosis for the affected child.

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Background: There is little evidence about either prevention or treatment of childhood arterial ischaemic stroke (AIS). However, drugs that regulate the immune and inflammatory response could theoretically prevent occurrence or recurrence of AIS. Additionally, as an acute treatment, they may limit the neurological damage caused by AIS.

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  • Infantile spasms is a severe epilepsy syndrome in infants, often hard to treat, with hormonal therapy and vigabatrin being common treatments.
  • A trial involving 102 hospitals aimed to determine if combining hormonal therapy with vigabatrin was more effective than hormonal therapy alone in treating this condition.
  • The study enrolled 766 infants, with 377 randomly assigned to receive either the combined treatment or hormonal therapy alone, measuring the primary outcome of cessation of spasms over a designated period.
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  • The study investigated the connection between movement disorders, brain MRI changes, and vigabatrin therapy in children with infantile spasms.
  • Out of 124 infants reviewed, 10 developed a movement disorder while on vigabatrin, with varying responses to dosage adjustments.
  • The findings suggest that while vigabatrin may be associated with movement disorders in some cases, the majority of infants did not experience these issues, and MRI changes linked to vigabatrin do not specifically correlate with movement disorders.
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Objectives: The indications for surgery and outcomes of patients who underwent surgical removal of subependymal giant cell astrocytomas (SEGAs) in our institution between 2000 and 2011 were reviewed.

Methods: We reviewed the clinical details of 16 patients with a diagnosis of Tuberous Sclerosis Complex (TSC) who underwent surgery for SEGA in Bristol since 2000. We collected information on age, sex, epilepsy history and cognitive status.

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  • Infantile spasms, a severe seizure disorder in infants, is influenced by various factors including age of onset and how quickly treatment begins, which can significantly affect developmental outcomes.
  • A study assessed 77 infants at 4 years using the Vineland Adaptive Behaviour Scales, revealing that younger age at onset and longer lead times to treatment were linked to poorer developmental scores.
  • Findings suggest that early diagnosis and treatment are crucial in minimizing developmental delays, particularly emphasizing that younger infants might be at greater risk for severe consequences.
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We report a case of levodopa-responsive juvenile parkinsonism (JP) associated with a heterozygous ATP13A2 gene frameshift mutation. The clinical phenotype of our case is more severe when compared with other published reports of symptomatic heterozygous ATP13A2 mutation carriers. To our knowledge, this is the youngest reported patient with JP associated with a heterozygous ATP13A2 mutation.

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  • The UK Infantile Spasms Study (UKISS) aimed to identify the causes of infantile spasms using the pediatric adaptation of ICD-10 for classification.
  • Out of 207 infants studied, 61% had a proven etiology related to neurologic diseases, while 33% had no identifiable cause. Key causes included hypoxic-ischemic encephalopathy and chromosomal abnormalities.
  • The classification method offers a structured approach for reporting results, avoids ambiguous terminology, and can adapt to account for emerging neurologic diseases, facilitating future comparisons and meta-analyses.
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  • Infantile spasms, a severe form of epilepsy in infants, was studied in the UKISS, which found that hormonal treatments led to better developmental outcomes compared to vigabatrin after 14 months, though epilepsy outcomes were similar for both treatments.* ! -
  • A follow-up study at an average age of 4 years revealed that while developmental scores were higher for infants receiving hormonal treatments, the overall difference between the two groups was not statistically significant.* ! -
  • For infants with no known cause of their condition, those treated with hormonal therapy maintained improved developmental scores, suggesting that these benefits may persist as they grow, despite similar epilepsy outcomes across both treatment groups.* !
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This paper reviews the epidemiology of childhood stroke. Stroke is an important condition in children. It is one of the top ten causes of childhood death and there is a high risk of serious morbidity for the survivors.

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Objectives: To evaluate the delay in research governance approval for a non-interventional, multicentre study in the United Kingdom.

Design: The times taken from application to the granting of research governance approval for an observational study of childhood stroke with ethical approval were prospectively recorded.

Setting: Ninety-two acute NHS Trusts in the United Kingdom.

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Some evidence suggests that breast feeding is weakly but positively associated with cognitive function. This association has been robust to adjustment for various confounders. The aim of this paper is to determine if duration of breast feeding is associated with cognitive function in late childhood.

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Background: Infantile spasms is a severe infantile seizure disorder that is difficult to treat and has a high morbidity. Absence of spasms on days 13 and 14 after randomisation is more common in infants allocated hormone treatments than in those allocated vigabatrin. We sought to assess whether early control of spasms is associated with improved developmental or epilepsy outcomes.

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Background: Infantile spasms, which comprise a severe infantile seizure disorder, have a high morbidity and are difficult to treat. Hormonal treatments (adrenocorticotropic hormone and prednisolone) have been the main therapy for decades, although little evidence supports their use. Vigabatrin has been recorded to have a beneficial effect in this disorder.

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