260 research outputs found
Transient epileptic amnesia: an emerging late-onset epileptic syndrome.
Transient epileptic amnesia (TEA) is a distinct neurologic condition occurring in
late-middle/old age and presenting with amnesic attacks of epileptic nature and
interictal memory disturbances. For many years this condition has been associated
with the nonepileptic condition of transient global amnesia (TGA) and still today
is poorly recognized by clinicians. Despite the clinical and laboratory findings
that distinguish TEA from TGA, differential diagnosis may be difficult in the
individual patient. Every effort must be employed for an early diagnosis, since
antiepileptic treatment may readily control both ictal episodes and memory
disturbances
IDIOPATHIC PARTIAL EPILEPSY WITH AUDITORY FEATURES (IPEAF): A CLINICAL AND GENETIC STUDY OF 53 SPORADIC CASES
The purpose of our study was to describe the clinical characteristics of sporadic
(S) cases of partial epilepsy with auditory features (PEAF) and pinpoint
clinical, prognostic and genetic differences with respect to previously reported
familial (F) cases of autosomal dominant partial epilepsy with auditory features
(ADPEAF). We analysed 53 patients (24 females and 29 males) with PEAF diagnosed
according to the following criteria: partial epilepsy with auditory symptoms,
negative family history for epilepsy and absence of cerebral lesions on NMR
study. All patients underwent a full clinical, neuroradiological and
neurophysiological examination. Forty patients were screened for mutations in
LGI1/epitempin, which is involved in ADPEAF. Age at onset ranged from 6 to 39
years (average 19 years). Secondarily generalized seizures were the most common
type of seizures at onset (79%). Auditory auras occurred either in isolation
(53%) or associated with visual, psychic or aphasic symptoms. Low seizure
frequency at onset and good drug responsiveness were common, with 51% of patients
seizure-free. Seizures tended to recur after drug withdrawal. Clinically, no
major differences were found between S and F patients with respect to age at
onset, seizure frequency and response to therapy. Analysis of LGI1/epitempin
exons failed to disclose mutations. Our data support the existence of a peculiar
form of non-lesional temporal lobe epilepsy closely related to ADPEAF but without
a positive family history. This syndrome, here named IPEAF, has a benign course
in the majority of patients and could be diagnosed by the presence of auditory
aura. Although LGI1 mutations have been excluded, genetic factors may play an
aetiopathogenetic role in at least some of these S cases
Levetiracetam in patients with epilepsy and chronic liver disease: observations in a case series.
OBJECTIVES: To evaluate levetiracetam (LEV) tolerability in patients with epilepsy and liver disease.
METHODS: Fourteen patients with epilepsy and concomitant liver disease were treated with LEV in an open prospective investigation mimicking the daily clinical practice. All patients were stabilized (ie, for at least 1 year) on traditional antiepileptic drugs with complete or partial control of seizures. In the 6-month pre-LEV baseline period, seizure frequency ranged from 3 to 300. Levetiracetam was added on to the basal treatment at a starting daily dose of 250 mg, and the dose was adjusted according to the tolerability and the therapeutic response. Four patients discontinued the drug within the first 3 months because of intolerable side effects. The remaining 10 continued LEV treatment, and the present follow-up is 12 to 38 months.
RESULTS: In the last 6 months of observation, none of the patients showed worsening of liver function on the basis of blood chemistry, and in 4 patients, a complete normalization or a trend toward physiological values of transaminase and/or gamma-glutamyltransferase activity was observed. A greater than 50% reduction in seizure frequency occurred in all uncontrolled patients, 2 of whom achieved seizure freedom during LEV treatment.
CONCLUSIONS: Based on these observations, LEV seems to be an attractive therapeutic option in epileptic patients with chronic liver diseases
A novel KCNQ3 mutation in familial epilepsy with focal seizures and intellectual disability
Mutations in the KCNQ2 gene encoding for voltage-gated potassium channel subunits have been
found in patients affected with early-onset epilepsies with wide phenotypic expression, ranging
from Benign Familial Neonatal Seizures (BFNS) to epileptic encephalopathy with cognitive
impairment, drug resistance, and characteristic EEG and neuroradiological features. By contrast,
only few KCNQ3 mutations have been rarely described, mostly in patients with typical BFNS. We
report clinical, genetic, and functional data from a family in which early-onset epilepsy and
neurocognitive deficits segregated with a novel mutations in KCNQ3 (c.989G>T; p.R330L).
Electrophysiological studies in mammalian cells revealed that incorporation of KCNQ3 R330L
mutant subunits impaired channel function, suggesting a pathogenetic role for such mutation. The
degree of functional impairment of channels incorporating KCNQ3 R330L subunits was larger than
that of channels carrying another KCNQ3 mutation affecting the same codon but leading to a
different amino acid substitution (p.R330C), previously identified in two families with typical
BFNS. These data suggest that mutations in KCNQ3, similarly to KCNQ2, can be found in patients
with more severe phenotypes including intellectual disability, and that the degree of the functional
impairment caused by mutations at position 330 in KCNQ3 may contribute to clinical disease
severity
Towards sustainability in European agricultural firms
Agricultural activity plays an important role in all 28 Member States (MS) of the European Union (EU) in terms of:
-Economics,
-Environmental,
-Social, and
-Political activity.
The sector also provides:
-agricultural goods and services to support food security;
-exports and imports at European and World level;
-creation of direct and indirect jobs; and
-the maintenance of population living in rural and regional areas.N/
An Exploratory Study of Field Failures
Field failures, that is, failures caused by faults that escape the testing
phase leading to failures in the field, are unavoidable. Improving verification
and validation activities before deployment can identify and timely remove many
but not all faults, and users may still experience a number of annoying
problems while using their software systems. This paper investigates the nature
of field failures, to understand to what extent further improving in-house
verification and validation activities can reduce the number of failures in the
field, and frames the need of new approaches that operate in the field. We
report the results of the analysis of the bug reports of five applications
belonging to three different ecosystems, propose a taxonomy of field failures,
and discuss the reasons why failures belonging to the identified classes cannot
be detected at design time but shall be addressed at runtime. We observe that
many faults (70%) are intrinsically hard to detect at design-time
Cyclic Vomiting Syndrome in Children
Cyclic Vomiting Syndrome (CVS) is an underdiagnosed episodic syndrome characterized
by frequent hospitalizations, multiple comorbidities, and poor quality of life. It is often
misdiagnosed due to the unappreciated pattern of recurrence and lack of confirmatory
testing. CVS mainly occurs in pre-school or early school-age, but infants and elderly onset
have been also described. The etiopathogenesis is largely unknown, but it is likely to be
multifactorial. Recent evidence suggests that aberrant brain-gut pathways, mitochondrial
enzymopathies, gastrointestinal motility disorders, calcium channel abnormalities, and
hyperactivity of the hypothalamic-pituitary-adrenal axis in response to a triggering
environmental stimulus are involved. CVS is characterized by acute, stereotyped and
recurrent episodes of intense nausea and incoercible vomiting with predictable periodicity
and return to baseline health between episodes. A distinction with other differential
diagnoses is a challenge for clinicians. Although extensive and invasive investigations
should be avoided, baseline testing toward identifying organic causes is recommended
in all children with CVS. The management of CVS requires an individually tailored therapy
Management of acute phase is mainly based on supportive and symptomatic care. Early
intervention with abortive agents during the brief prodromal phase can be used to attempt
to terminate the attack. During the interictal period, non-pharmacologic measures as
lifestyle changes and the use of reassurance and anticipatory guidance seem to be
effective as a preventive treatment. The indication for prophylactic pharmacotherapy
depends on attack intensity and severity, the impairment of the QoL and if attack
treatments are ineffective or cause side effects. When children remain refractory to
acute or prophylactic treatment, or the episode differs from previous ones, the clinician
should consider the possibility of an underlying disease and further mono- or combination
therapy and psychotherapy can be guided by accompanying comorbidities and specific
sub-phenotype. This review was developed by a joint task force of the Italian Society
of Pediatric Gastroenterology Hepatology and Nutrition (SIGENP) and Italian Society
of Pediatric Neurology (SINP) to identify relevant current issues and to propose future
research directions on pediatric CV
Management, treatment, and clinical approach of Sydenham's chorea in children: Italian survey on expert-based experience
: Sydenham's chorea (SC), an autoimmune disorder affecting the central nervous system, is a pivotal diagnostic criterion for acute rheumatic fever. Primarily prevalent in childhood, especially in developing countries, SC manifests with involuntary movements and neuropsychiatric symptoms. Predominantly occurring between ages 5 and 15, with a female bias, SC may recur, particularly during pregnancy or estrogen use. The autoimmune response affecting the basal ganglia, notably against dopamine, underlies the pathophysiology. Clinical management necessitates an integrated approach, potentially involving immunomodulatory therapies. To address discrepancies in SC management, a survey was conducted across Italy, targeting specialists in neurology, pediatrics, child neuropsychiatry, and rheumatology. Of the 51 responding physicians, consensus favored hospitalization for suspected SC, with broad support for laboratory tests and brain MRI. Treatment preferences showed agreement on oral prednisone and IVIG, while opinions varied on duration and plasmapheresis. Haloperidol emerged as the preferred symptomatic therapy. Post-SC penicillin prophylaxis and steroid therapy gained strong support, although opinions differed on duration. Follow-up recommendations included neuropsychological and cardiological assessments. Despite offering valuable insights, broader and more studies are needed in order to guide treatment decisions in this well-known yet challenging complication of acute rheumatic fever, which continues to warrant scientific attention and concerted clinical efforts
The spectrum of intermediate SCN8A-related epilepsy
Objective: Pathogenic variants in SCN8A have been associated with a wide spectrum of epilepsy phenotypes, ranging from benign familial infantile seizures (BFIS) to epileptic encephalopathies with variable severity. Furthermore, a few patients with intellectual disability (ID) or movement disorders without epilepsy have been reported. The vast majority of the published SCN8A patients suffer from severe developmental and epileptic encephalopathy (DEE). In this study, we aimed to provide further insight on the spectrum of milder SCN8A-related epilepsies. Methods: A cohort of 1095 patients were screened using a next generation sequencing panel. Further patients were ascertained from a network of epilepsy genetics clinics. Patients with severe DEE and BFIS were excluded from the study. Results: We found 36 probands who presented with an SCN8A-related epilepsy and normal intellect (33%) or mild (61%) to moderate ID (6%). All patients presented with epilepsy between age 1.5 months and 7 years (mean = 13.6 months), and 58% of these became seizure-free, two-thirds on monotherapy. Neurological disturbances included ataxia (28%) and hypotonia (19%) as the most prominent features. Interictal electroencephalogram was normal in 41%. Several recurrent variants were observed, including Ile763Val, Val891Met, Gly1475Arg, Gly1483Lys, Phe1588Leu, Arg1617Gln, Ala1650Val/Thr, Arg1872Gln, and Asn1877Ser. Significance: With this study, we explore the electroclinical features of an intermediate SCN8A-related epilepsy with mild cognitive impairment, which is for the majority a treatable epilepsy.Peer reviewe
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