Publications by authors named "Vi Huong Nguyen Michel"

Article Synopsis
  • Sleep disorders like insomnia and hypersomnia were observed in a patient with anti-NMDAr encephalitis related to an ovarian teratoma.
  • Despite initial improvement with immunotherapy, the patient’s condition worsened, revealing severe sleep issues through a 24-hour EEG-polysomnography study.
  • Following additional immunotherapy and surgery to remove the teratoma, the patient's clinical symptoms and sleep patterns significantly improved, highlighting the need for more research on sleep in this condition.
View Article and Find Full Text PDF
Article Synopsis
  • A study investigated mortality risk factors in older COVID-19 patients with preexisting neuropsychiatric conditions, using a sample of 191 inpatients aged 70 and above.
  • The majority of these patients had prior neuropsychiatric comorbidities, and many showed new neuropsychiatric symptoms, with a notable mortality rate of 19.4% within 40 days.
  • Key risk factors for increased mortality included having a history of brain tumors or Parkinsonism, impaired consciousness, lower daily activity scores, and specific blood markers (neutrophil-to-lymphocyte ratio and thrombocytopenia).
View Article and Find Full Text PDF

Objectives: Several electroencephalographic (EEG) features -mainly the reactivity of background activity-have been suggested as reliable predictors of outcome for patients with post-anoxic coma (PAC). However, EEG in PAC often contains abundant EEG paroxysms (EP) that may hinder the detection of background EEG activity. We aimed to identify the features, among the different paroxysmal and non-paroxysmal EEG patterns, that may predict the outcome of patients with PAC.

View Article and Find Full Text PDF

Objective: To highlight specific characteristics of seizure semiology and EEG features associated with different subtypes of autoimmune encephalitis (AE).

Methods: We systematically reviewed the seizure semiology and all the EEG recordings from patients with AE managed in a tertiary referral centre for epilepsy and a neuro-intensive care unit. Each characteristic across the different subtypes of AE was compared by post hoc analysis.

View Article and Find Full Text PDF
Article Synopsis
  • There is a need for effective biomarkers to monitor EEG activity and seizure risk in patients with acute brain injuries, as seizures can lead to further neurological issues.
  • The study involved 11 patients with refractory status epilepticus, tracking their serum levels of neuron-specific enolase (NSE) and S100-beta alongside EEG activity over several days.
  • Results showed that NSE levels correlated with EEG scores and could predict seizure recurrence, with levels above 17 ng/ml indicating a 71% seizure occurrence and a rise of more than 15% predicting recurrence in 80% of patients.
View Article and Find Full Text PDF
Article Synopsis
  • Obstructive sleep apnea (OSA) is common in older adults but often goes undiagnosed due to factors like underreported symptoms and the normalizing of sleep issues with aging.
  • A study of 102 geriatric inpatients identified that excessive daytime sleepiness and nocturnal choking were the main symptoms linked to diagnosed OSA, with similarity in comorbidities between OSA and non-OSA patients.
  • The findings highlight that excessive daytime sleepiness should be a key indicator for potential OSA in older patients, necessitating further nocturnal evaluation.
View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to compare video-EEG monitoring with standard polysomnography for sleep scoring in an Epileptology Unit, evaluating their effectiveness across 22 patients.
  • Experts manually scored sleep based on specific guidelines and analyzed various sleep parameters, such as sleep cycles, efficiency, and sleep latencies, using statistical methods to assess agreement between the two methods.
  • The results indicated a high level of agreement for most parameters between video-EEG and polysomnography, suggesting that video-EEG is a viable alternative for studying sleep architecture in epilepsy patients.
View Article and Find Full Text PDF
Article Synopsis
  • COVID-19 may lead to central nervous system issues, such as encephalopathy, prompting the need for comprehensive monitoring to understand these impacts better and improve patient care.* -
  • A study at Pitié-Salpêtrière Hospital analyzed clinical, laboratory, and MRI data along with EEG results from 78 patients hospitalized with severe COVID-19, focusing on encephalopathy-related features.* -
  • The results showed that a significant number of patients exhibited abnormal EEG patterns and MRI changes, indicating potential brain damage linked to COVID-19, emphasizing the need for critical neurological assessments in these patients.*
View Article and Find Full Text PDF
Article Synopsis
  • Continuous EEG is vital for monitoring critically ill patients after severe seizures, assessing prognosis and seizure risk through various scoring systems.
  • The authors propose a new scoring method called EaSiBUSSEs, which evaluates EEG patterns to predict seizure buildup in patients who have experienced convulsive status epilepticus.
  • Initial tests on eleven patients showed that EaSiBUSSEs accurately identifies individuals at risk of seizures within 24 hours and is easy to use for ongoing EEG monitoring.
View Article and Find Full Text PDF
Article Synopsis
  • Inappropriate routines can negatively affect sleep, causing sleep disorders or worsening existing issues.
  • An observational study was conducted with 176 patients aged 60 and older who suffer from chronic insomnia to explore their sleep habits and lifestyles.
  • The aim of the study was to identify habits that can be modified to help improve insomnia in this older population.
View Article and Find Full Text PDF

Purpose: To compare the motor semiology of sleep behavior disorder (RBD) during rapid eye movement (REM) with epileptic seizures in non-REM and REM sleep.

Methods: We analyzed the types and frequency of motor events from videos of patients with RBD (n = 15, mean age 64.8 years, 179 motor episodes) and patients with epilepsy (n = 15, mean age 34.

View Article and Find Full Text PDF

This study addresses the problem of Alzheimer's disease (AD) diagnosis with Electroencephalography (EEG). The use of EEG as a tool for AD diagnosis has been widely studied by comparing EEG signals of AD patients only to those of healthy subjects. By contrast, we perform automated EEG diagnosis in a differential diagnosis context using a new database, acquired in clinical conditions, which contains EEG data of 169 patients: subjective cognitive impairment (SCI) patients, mild cognitive impairment (MCI) patients, possible Alzheimer's disease (AD) patients, and patients with other pathologies.

View Article and Find Full Text PDF

Objective: The reasons for failure of surgical treatment for mesial temporal lobe epilepsy (MTLE) associated with hippocampal sclerosis (HS) remain unclear. This retrospective study analyzed seizure, cognitive, and psychiatric outcomes, searching for factors associated with seizure relapse or cognitive and psychiatric deterioration after MTLE-HS surgery.

Methods: Seizure, cognitive, and psychiatric outcomes were reviewed after 389 surgeries performed between 1990 and 2015 on patients aged 15-67 years at a tertiary center.

View Article and Find Full Text PDF

To delineate the clinical and EEG features of adults with focal epilepsy associated with a generalized paroxysmal fast activity (GPFA) pattern on EEG who developed refractory seizures, notably drop attacks, but do not fulfill the classical triad for the diagnosis of Lennox-Gastaut syndrome (LGS) and provide further insight into LGS mechanisms. Among 957 patients admitted to video-EEG monitoring between 2002 and 2015, we retrospectively research adult patients with refractory focal epilepsy, drop attacks and GPFA on EEG. We collected demographic, anamnestic, and clinical data from medical records.

View Article and Find Full Text PDF

Background: Hippocampal sclerosis is the most common cause of drug-resistant epilepsy amenable for surgical treatment and seizure control. This study aimed to analyze morbidities related to surgery of mesial temporal lobe epilepsy associated with hippocampal sclerosis and to identify possible risk factors for complications.

Methods: A retrospective analysis of postoperative complications was made for 389 operations performed between 1990 and 2015 on patients aged 15-67 years (mean 36.

View Article and Find Full Text PDF

Background: Sleep complaints are prevalent in older patients. Sleepiness, short or long sleep duration and obstructive sleep apnea (OSA) are associated with insulin resistance (IR). These parameters have not yet been considered together in the same study exploring the possible association between IR and sleep in older patients.

View Article and Find Full Text PDF

Epileptic syndromes are distinctive disorders with specific features, which when taken together, permit a specific diagnosis. There is actually a debate on that medial temporal lobe epilepsy with hippocampal sclerosis is an epileptic syndrome. To address this issue, we searched for discriminative semiological features between temporal lobe epilepsy patients with hippocampal sclerosis (TLE-HS patients or group 1), TLE patients with medial structural lesion other than hippocampal sclerosis or in MRI-negative cases with medial onset on further investigations (group 2) and lateral TLE patients (LTLE or group 3).

View Article and Find Full Text PDF

There are many reasons to take into consideration the sleep disorders in the elderly. The sleep quality degrades with age and is strongly affected by medical conditions, intrinsic sleep disorders, or by a combination of these factors. Other age-related conditions such as severe dementia, dependence or living in institution worsen sleep disturbances in older people.

View Article and Find Full Text PDF

Objective: To compare the performance of 4h-video EEG monitoring (VEEG) and 1h-nap-VEEG in an Epileptology Unit.

Methods: We examined short-term VEEG data from 196 patients admitted to characterize their: (i) clinical events; (ii) epileptic syndromes or (iii) state after status epilepticus or surgery. We compared the 4h-VEEG and 1h-nap-VEEG performances using three measures: (i) the capability to detect epileptic seizures (ES), psychogenic non-epileptic seizures (PNES), interictal epileptiform abnormalities (IEA) and sleep-related IEA; (ii) the usefulness to answer questions on referral; (iii) the sensitivity for the final diagnosis.

View Article and Find Full Text PDF

Objectives: To examine the frequency and determinants of underperception of naps in older adults referred for a sleep assessment.

Design: Prospective study.

Setting: Outpatient geriatric sleep clinic.

View Article and Find Full Text PDF

Invasive electroencephalography recordings with depth or subdural electrodes are necessary to identify the ictogenic area in some drug-resistant focal epilepsies. We aimed to analyze the safety profile of intracranial electrode implantation in a tertiary center and the factors associated with its complications. We retrospectively examined complications in 163 intracranial procedures performed in adult patients.

View Article and Find Full Text PDF