1
|
Rissardo JP, Vora NM, Tariq I, Mujtaba A, Caprara ALF. Deep Brain Stimulation for the Management of Refractory Neurological Disorders: A Comprehensive Review. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1991. [PMID: 38004040 PMCID: PMC10673515 DOI: 10.3390/medicina59111991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/04/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023]
Abstract
In recent decades, deep brain stimulation (DBS) has been extensively studied due to its reversibility and significantly fewer side effects. DBS is mainly a symptomatic therapy, but the stimulation of subcortical areas by DBS is believed to affect the cytoarchitecture of the brain, leading to adaptability and neurogenesis. The neurological disorders most commonly studied with DBS were Parkinson's disease, essential tremor, obsessive-compulsive disorder, and major depressive disorder. The most precise approach to evaluating the location of the leads still relies on the stimulus-induced side effects reported by the patients. Moreover, the adequate voltage and DBS current field could correlate with the patient's symptoms. Implantable pulse generators are the main parts of the DBS, and their main characteristics, such as rechargeable capability, magnetic resonance imaging (MRI) safety, and device size, should always be discussed with patients. The safety of MRI will depend on several parameters: the part of the body where the device is implanted, the part of the body scanned, and the MRI-tesla magnetic field. It is worth mentioning that drug-resistant individuals may have different pathophysiological explanations for their resistance to medications, which could affect the efficacy of DBS therapy. Therefore, this could explain the significant difference in the outcomes of studies with DBS in individuals with drug-resistant neurological conditions.
Collapse
Affiliation(s)
| | - Nilofar Murtaza Vora
- Medicine Department, Terna Speciality Hospital and Research Centre, Navi Mumbai 400706, India;
| | - Irra Tariq
- Medicine Department, United Medical & Dental College, Karachi 75600, Pakistan;
| | - Amna Mujtaba
- Medicine Department, Karachi Medical & Dental College, Karachi 74700, Pakistan;
| | | |
Collapse
|
2
|
Janmohamed M, Hakeem H, Ooi S, Hakami S, Vu L, Perucca P, O'Brien TJ, Antonic-Baker A, Chen Z, Kwan P. Treatment Outcomes of Newly Diagnosed Epilepsy: A Systematic Review and Meta-analysis. CNS Drugs 2023; 37:13-30. [PMID: 36542274 DOI: 10.1007/s40263-022-00979-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/30/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND OBJECTIVES Understanding the multi-faceted treatment outcomes of newly diagnosed epilepsy is critical for developing rational therapeutic strategies. A meta-analysis was conducted to derive pooled estimates of a range of seizure outcomes in children and adults with newly diagnosed epilepsy commenced on antiseizure medication treatment, and to identify factors associated with different outcomes. METHODS PubMed/EMBASE were screened for eligible articles between 1 January, 1995 and 1 May, 2021 to include unselected cohort studies with a ≥ 12-month follow-up of seizure outcomes. Proportions of patients seizure free at different follow-up timepoints and their characteristics at the study population level were extracted. The patients were group-wise aggregated using a random-effects model. Primary outcomes were proportions of patients with cumulative 1-year seizure freedom (C1YSF), and 1-year and 5-year terminal seizure freedom (T1YSF and T5YSF). Secondary outcomes included the proportions of patients with early sustained seizure freedom, drug-resistant epilepsy and seizure-free off antiseizure medication at the last follow-up (off antiseizure medications). A separate random-effects meta-analysis was performed for nine predictors of importance. RESULTS In total, 39 cohorts (total n = 21,139) met eligibility criteria. They included 15 predominantly adult cohorts (n = 12,024), 19 children (n = 6569), and 5 of mixed-age groups (n = 2546). The pooled C1YSF was 79% (95% confidence interval [CI] 74-83). T1YSF was 68% (95% CI 63-72) and T5YSF was 69% (95% CI 62-75). Children had higher C1YSF (85% vs 68%, p < 0.001) and T1YSF than adult cohorts (74% vs 61%, p = 0.007). For secondary outcomes, 33% (95% CI 27-39) of patients achieved early sustained seizure freedom, 17% (95% CI 13-21) developed drug resistance, and 39% (95% CI 30-50) were off antiseizure medications at the last follow-up. Studies with a longer follow-up duration correlated with higher C1YSF (p < 0.001) and being off antiseizure medications (p = 0.045). Outcomes were not associated with study design (prospective vs retrospective), cohort size, publication year, or the earliest date of recruitment. Predictors of importance in newly diagnosed epilepsy include etiology, epilepsy type, abnormal diagnostics (neuroimaging, examination, and electroencephalogram findings), number of seizure types, and pre-treatment seizure burden. CONCLUSIONS Seizure freedom is achieved with currently available antiseizure medications in most patients with newly diagnosed epilepsy, yet this is often not immediate, may not be sustainable, and has not improved over recent decades. Symptomatic etiology, abnormal neuro-diagnostics, and increased pre-treatment seizure burden and seizure types are important predictors for unfavorable outcomes in newly diagnosed epilepsy. The study findings may be used as a quantitative benchmark on the efficacy of future antiseizure medication therapy for this patient population.
Collapse
Affiliation(s)
- Mubeen Janmohamed
- Department of Neuroscience, Central Clinical School, The Alfred Centre, Monash University, Level 6, 99 Commercial Road, Melbourne, VIC, 3004, Australia. .,Department of Neurology, Alfred Hospital, Melbourne, VIC, Australia.
| | - Haris Hakeem
- Department of Neuroscience, Central Clinical School, The Alfred Centre, Monash University, Level 6, 99 Commercial Road, Melbourne, VIC, 3004, Australia.,Department of Neurology, Alfred Hospital, Melbourne, VIC, Australia
| | - Suyi Ooi
- Department of Neurology, The Royal Melbourne Hospital, Melbourne, VIC, Australia
| | - Suhailah Hakami
- Department of Neuroscience, Central Clinical School, The Alfred Centre, Monash University, Level 6, 99 Commercial Road, Melbourne, VIC, 3004, Australia
| | - Lily Vu
- Department of Medicine, The University of Melbourne, Melbourne, VIC, Australia
| | - Piero Perucca
- Department of Neuroscience, Central Clinical School, The Alfred Centre, Monash University, Level 6, 99 Commercial Road, Melbourne, VIC, 3004, Australia.,Department of Neurology, Alfred Hospital, Melbourne, VIC, Australia.,Department of Neurology, The Royal Melbourne Hospital, Melbourne, VIC, Australia.,Department of Medicine, The University of Melbourne, Melbourne, VIC, Australia.,Bladin-Berkovic Comprehensive Epilepsy Program, Austin Health, Melbourne, VIC, Australia
| | - Terence J O'Brien
- Department of Neuroscience, Central Clinical School, The Alfred Centre, Monash University, Level 6, 99 Commercial Road, Melbourne, VIC, 3004, Australia.,Department of Neurology, Alfred Hospital, Melbourne, VIC, Australia.,Department of Neurology, The Royal Melbourne Hospital, Melbourne, VIC, Australia.,Department of Medicine, The University of Melbourne, Melbourne, VIC, Australia
| | - Ana Antonic-Baker
- Department of Neuroscience, Central Clinical School, The Alfred Centre, Monash University, Level 6, 99 Commercial Road, Melbourne, VIC, 3004, Australia
| | - Zhibin Chen
- Department of Neuroscience, Central Clinical School, The Alfred Centre, Monash University, Level 6, 99 Commercial Road, Melbourne, VIC, 3004, Australia.,Department of Medicine, The University of Melbourne, Melbourne, VIC, Australia
| | - Patrick Kwan
- Department of Neuroscience, Central Clinical School, The Alfred Centre, Monash University, Level 6, 99 Commercial Road, Melbourne, VIC, 3004, Australia.,Department of Neurology, Alfred Hospital, Melbourne, VIC, Australia.,Department of Neurology, The Royal Melbourne Hospital, Melbourne, VIC, Australia.,Department of Medicine, The University of Melbourne, Melbourne, VIC, Australia
| |
Collapse
|
3
|
Zhong Y. Screening of Risk Factors for Poor Prognosis in Patients with Refractory Epilepsy Secondary to Encephalomalacia. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:5720102. [PMID: 35832138 PMCID: PMC9273423 DOI: 10.1155/2022/5720102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 06/14/2022] [Indexed: 11/18/2022]
Abstract
Objective The study was aimed at screening the independent prognostic risk factors for refractory epilepsy associated with encephalomalacia (REAE). Methods Patients with REAE treated in the First People's Hospital of Linping District from January 2018 to December 2019 were selected. The prognosis was represented by Engel grading. Clinical data of the patients were collected, including age, sex, BMI, lesion sites, number of lesion sites, lesion size, seizure frequency, epilepsy type, and treatment methods. Independent risk factors for poor prognosis were screened by logistic regression analysis. The receiver operating characteristic curve (ROC) was used to evaluate the prognostic efficacy of independent risk factors. Results A total of 48 patients were included in this study, including 31 patients (64.58%) in the good prognosis group and 17 patients (35.42%) in the poor prognosis group. The mean age of the poor prognosis group was higher than that of the good prognosis group (P = 0.002). The proportion of patients with multisite lesions in the poor prognosis group was higher than that in the good prognosis group (P = 0.016). The proportion of patients with cerebral malacia lesion diameter ≥ 3 cm in the poor prognosis group was higher than that in the good prognosis group (P = 0.002). The proportion of patients with attack frequency ≥ 2 times/month in the poor prognosis group was higher than in the good prognosis group (P = 0.002). The proportion of patients receiving surgical treatment in the poor prognosis group was lower than that in the good prognosis group (P < 0.001). Age, number of lesion sites, size of encephalomalacia, and seizure frequency were independent risk factors for the prognosis of patients with REAE (OR > 1, P < 0.05). Surgical treatment was an independent protective factor associated with the prognosis of patients with REAE (OR < 1, P < 0.05). The area under the ROC curve of surgical treatment was 0.83 (P = 0.004). The area under the ROC curve of the size of encephalomalacia was 0.72 (P = 0.008). There was a positive correlation between age and size of encephalomalacia and Engel grade (r > 0, P < 0.05). Surgical treatment was negatively correlated with Engel grade (r < 0, P < 0.05). The number of lesion sites and seizure frequency had no significant correlation with Engel (P > 0.05). The proportion of Engel I patients treated with surgery was higher than that treated with drugs (P = 0.001). The ratio of Engel III and IV patients treated with surgery was lower than that treated with medications (P < 0.05). Conclusion Age, number of lesion sites, size of encephalomalacia, and seizure frequency are independent risk factors for the prognosis of patients with REAE. Surgical treatment is an independent prognostic factor for patients with REAE. Surgical treatment can significantly improve patient outcomes.
Collapse
Affiliation(s)
- Yinjun Zhong
- First People's Hospital of Linping District, Hangzhou 311100, China
| |
Collapse
|
4
|
Buainain RP, Oliveira CTP, Marson FAL, Ortega MM. Epidemiologic Profile of Patients With Epilepsy in a Region of Southeast Brazil: Data From a Referral Center. Front Neurol 2022; 13:822537. [PMID: 35620790 PMCID: PMC9128524 DOI: 10.3389/fneur.2022.822537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 03/17/2022] [Indexed: 11/13/2022] Open
Abstract
Introduction Epilepsy affects about 50 million people worldwide, 80% of whom live in low- and middle-income countries. In Brazil, epidemiological studies are outdated and restricted to specific regions, mostly due to the continental size of country. Objective We aimed to present the first evidence-based study on the epidemiological aspects of individuals with epilepsy, mapping the characteristics of this disease in a referral center in a region of Southeast Brazil. Methods A retrospective study was carried out from January 2010 to March 2021. Patients were selected according to the International League Against Epilepsy Criteria. Results From a total of 618 selected patients, 317 (51.3%) were men and 301 (48.7%) were women with an average age of 34.03 ± 20.66 years. The average age at the first seizure was 15.16 ± 17.61 years. The prevalence ratio was 1.30 cases/1,000 habitants. Childhood febrile seizure was present in 44 patients (7.9%) and family history of epilepsy in 231 (37.4%) patients. The predominant type of seizure was focal in 401 (64.9%) patients. The most frequent etiologies were structural in 254 (41.1%) patients and unknown in 238 (38.5%) patients. Most of the patients' treatments were based on anti-seizure drugs in monotherapy [389 (62.9%)] with 398 (64.4%) drug-responsive patients. Conclusions Our epilepsy prevalence rate was lower than other studies in the Southeast Region of Brazil. In addition, the structural epilepsy type was predominant in our study compared with unknown causes, which is more frequent in other Brazilian regions and worldwide studies. The differences may be attributed to our region, which presents a high prevalence of neuroinfection, specially neurocysticercosis, and a referral center for traumatic brain injury. Moreover, the contrasting results reinforce the need for an adequate epidemiological assessment of epilepsy incidence in a region of Southeast Brazil.
Collapse
Affiliation(s)
- Renata Parissi Buainain
- Laboratory of Cell and Molecular Tumor Biology and Bioactive Compounds, São Francisco University, São Paulo, Brazil
- Laboratory of Human and Medical Genetics, São Francisco University, São Paulo, Brazil
| | | | - Fernando Augusto Lima Marson
- Laboratory of Cell and Molecular Tumor Biology and Bioactive Compounds, São Francisco University, São Paulo, Brazil
- Laboratory of Human and Medical Genetics, São Francisco University, São Paulo, Brazil
| | - Manoela Marques Ortega
- Laboratory of Cell and Molecular Tumor Biology and Bioactive Compounds, São Francisco University, São Paulo, Brazil
- Laboratory of Human and Medical Genetics, São Francisco University, São Paulo, Brazil
| |
Collapse
|
5
|
Babunovska M, Boskovski B, Kuzmanovski I, Tanovska N, Kiteva Trencevska G, Cvetkovska E. Risk factors associated with new-onset epilepsy in young adults: Population-based study. Epilepsy Behav 2021; 124:108353. [PMID: 34678568 DOI: 10.1016/j.yebeh.2021.108353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/09/2021] [Accepted: 09/16/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Risk factors for childhood and late-onset epilepsy are thoroughly described in existing literature, while they are less defined and ambiguous for young adults. We aimed to evaluate the prevalence of various risk factors associated with new-onset epilepsy in adults aged 20-49 years. We included all incident cases in North Macedonia between 2015 and 2018. METHODS Study participants were ascertained through the nationwide healthcare platform. We performed a retrospective analysis of their Electronic Health Records and identified associated conditions which are considered putative risk factors for epilepsy. RESULTS Of 1691 included patients, 694 (41%) had at least one putative risk factor. The most common were neoplasms and cerebrovascular diseases (8% of cases, respectively), followed by intellectual disability (6%), alcohol/substance abuse (5%), and traumatic brain injury (4%). Infective and inflammatory diseases were infrequent in our cohort (1%). Other very rare risk factors included degenerative and metabolic disorders and malformations of cortical development (2%). Idiopathic (genetic) generalized epilepsies accounted for 7% of incident cases. Chronic alcoholism and illicit drugs abuse (dominantly opioids) were significantly more frequent in males than in females (p < 0.00001). CONCLUSION Brain neoplasms and stroke were the most prevalent risk factors associated with new-onset epilepsy in young adults. Furthermore, adult-onset IGE were common in our cohort. The majority of patients did not have any of conventional risk factors and probably specific genetic causes might become increasingly recognized in adult-onset epilepsies in the future.
Collapse
Affiliation(s)
- Marija Babunovska
- Clinic of Neurology, Ss. Cyril and Methodius University, Skopje, North Macedonia
| | - Bojan Boskovski
- Clinic of Neurology, Ss. Cyril and Methodius University, Skopje, North Macedonia
| | - Igor Kuzmanovski
- Clinic of Neurology, Ss. Cyril and Methodius University, Skopje, North Macedonia
| | - Nikolina Tanovska
- Clinic of Neurology, Ss. Cyril and Methodius University, Skopje, North Macedonia
| | | | - Emilija Cvetkovska
- Clinic of Neurology, Ss. Cyril and Methodius University, Skopje, North Macedonia
| |
Collapse
|
7
|
Rissardo JP, Caprara ALF, Durante Í. Neurocysticercosis and movement disorders: A literature review. Brain Circ 2020; 6:225-241. [PMID: 33506145 PMCID: PMC7821807 DOI: 10.4103/bc.bc_48_20] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 12/02/2020] [Accepted: 12/07/2020] [Indexed: 12/27/2022] Open
Abstract
Neurocysticercosis (NCC) is a specific form of cysticercosis that affects the central nervous system. It is caused by the tapeworm Taenia solium, which is often found in pigs. NCC is considered one of the “great simulator/mimickers” of other diseases. In this context, movement disorders (MDs) can occur in a small percentage of individuals with NCC. This review aims to evaluate the clinicoepidemiological profile, pathological mechanisms, and historical features of NCC-associated MD. Relevant reports in six databases were identified and assessed by two reviewers without language restriction. A total of 71 reports containing 148 individuals who developed an MD related to NCC were identified. NCC-associated MD included parkinsonism (n = 47), ataxia (n = 32), chorea (n = 18), dystonia (n = 13), tremor (n = 8), myokymia (n = 6), myoclonus (n = 4), ballism (n = 1), tics (n = 1), and others (n = 18). The mean and median ages were 36.58 (standard deviation: 20.51) and 35 years (age range: 1–88 years), respectively. There was a slight predominance of female sex (52.17%). On follow-up, 58.90% of the individuals had a full recovery; two deaths were reported. We believe that the majority of cases reported were only diagnosed because patients had classical clinical manifestations generally investigated by neuroimaging, resulting in incidental findings suggestive of NCC, which were later supported by laboratory examinations. Therefore, the association between NCC and MD is probably underreported. Clinicians should be wary of this association, mainly in endemic areas for cysticercosis.
Collapse
Affiliation(s)
| | | | - Ícaro Durante
- Department of Medicine, Federal University of Fronteira Sul, Passo Fundo, RS, Brazil
| |
Collapse
|