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1.
Neurol Sci ; 45(8): 3723-3735, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38520640

RESUMO

Awake craniotomy (AC) allows intraoperative brain mapping (ioBM) for maximum lesion resection while monitoring and preserving neurological function. Conventionally, language, visuospatial assessment, and motor functions are mapped, while the assessment of executive functions (EF) is uncommon. Impaired EF may lead to occupational, personal, and social limitations, thus, a compromised quality of life. A comprehensive literature search was conducted through Scopus, Medline, and Cochrane Library using a pre-defined search strategy. Articles were selected after duplicate removal, initial screening, and full-text assessment. The demographic details, ioBM techniques, intraoperative tasks, and their assessments, the extent of resection (EOR), post-op EF and neurocognitive status, and feasibility and potential adverse effects of the procedure were reviewed. The correlations of tumor locations with intraoperative EF deficits were also assessed. A total of 13 studies with intraoperative EF assessment of 351 patients were reviewed. Awake-asleep-awake protocol was most commonly used. Most studies performed ioBM using bipolar stimulation, with a frequency of 60 Hz, pulse durations ranging 1-2 ms, and intensity ranging 2-6 mA. Cognitive function was monitored with the Stroop task, spatial-2-back test, line-bisection test, trail-making-task, and digit-span tests. All studies reported similar or better EOR in patients with ioBM for EF. When comparing the neuropsychological outcomes of patients with ioBM of EF to those without it, all studies reported significantly better EF preservation in ioBM groups. Most authors reported EF mapping as a feasible tool to obtain satisfactory outcomes. Adverse effects included intraoperative seizures which were easily controlled. AC with ioBM of EF is a safe, effective, and feasible technique that allows satisfactory EOR and improved neurocognitive outcomes with minimal adverse effects.


Assuntos
Mapeamento Encefálico , Craniotomia , Função Executiva , Vigília , Humanos , Função Executiva/fisiologia , Craniotomia/métodos , Craniotomia/efeitos adversos , Vigília/fisiologia , Mapeamento Encefálico/métodos , Monitorização Neurofisiológica Intraoperatória/métodos , Neoplasias Encefálicas/cirurgia
2.
J Pak Med Assoc ; 74(3 (Supple-3)): S64-S81, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-39262066

RESUMO

Low- and middle-income countries (LMICs) have historically been under-represented in clinical trials, leading to a disparity in evidence-based recommendations for the management of neurooncological conditions. To address this knowledge gap, we conducted a scoping review to assess the current literature on clinical trials in neuro-oncology from LMICs. The eligibility criteria for inclusion in this review included clinical trials registered and conducted with human subjects, with available English language text or translation, and focussed on neuro-oncological cases. The literature search strategy captured 408 articles, of which 61 met these criteria, with a significant number of randomised controlled trials from specific LMICs. The review found that LMIC clinical trials have contributed significantly to understanding surgical, chemotherapeutic, and radiation therapy interventions for brain tumours, paediatric cancers, and the repurposing of drugs as new targets in neuro-oncology. These findings highlight the potential for expanding clinical trials research in neuro-oncology in LMICs, which may significantly impact global understanding and management of these conditions, particularly from diverse populations from the global south.


Assuntos
Neoplasias Encefálicas , Ensaios Clínicos como Assunto , Países em Desenvolvimento , Humanos , Neoplasias Encefálicas/terapia , Oncologia
3.
J Pak Med Assoc ; 74(3 (Supple-3)): S152-S158, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-39262076

RESUMO

Intra-cranial meningiomas represent the most common type of extra-axial brain tumour in adults. Characteristically slow-growing and often asymptomatic, these tumours may only require observation in some cases. However, lesions that cause a significant mass effect necessitate intervention, primarily through surgical means. Additionally, in cases of significant unresectable low-grade residual meningioma or high-grade tumours, radiation therapy becomes essential. Notably, current management guidelines predominantly reflect data derived from high-income countries, failing to address constraints prevalent in the developing world, such as limited financial resources and restricted access to advanced surgical facilities. This manuscript introduces guidelines specifically tailored for the management of meningioma in patients from low- and middle-income countries, considering their unique healthcare challenges and resources.


Assuntos
Países em Desenvolvimento , Neoplasias Meníngeas , Meningioma , Humanos , Meningioma/terapia , Meningioma/diagnóstico , Neoplasias Meníngeas/terapia , Consenso , Guias de Prática Clínica como Assunto , Procedimentos Neurocirúrgicos/normas
4.
J Pak Med Assoc ; 74(3 (Supple-3)): S135-S144, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-39262074

RESUMO

Pineal region tumours are rare and mainly arise at a younger age. They can be categorized into various types: germ cell tumours (GCT), pineal parenchymal tumours (PPT), meningiomas, gliomas, pineoblastoma, pineal parenchymal tumours of intermediate differentiation, papillary tumours of the pineal region, and SMARCB1- mutant desmoplastic myxoid tumour. Within GCT, germinomas are the most prevalent, comprising the majority of tumours in this region, while nongerminomatous GCTs are also present. In rare instances, metastases from other sites may manifest. These tumours often lead to obstructive hydrocephalus and commonly exhibit symptoms related to mass effect, including headache, nausea, vomiting, and impaired gait stability. Different subtypes of pineal region tumours exhibit distinct radiological characteristics, thus imaging remains the primary diagnostic tool. Histologic diagnosis necessitates biopsy, unless in cases of germ cell tumours, particularly germinomas, which can be identified through elevated levels of tumour markers like alpha-fetoprotein (AFP) and human chorionic gonadotropin (HCG) in both cerebrospinal fluid (CSF) and serum. While benign tumours might be effectively treated with radical resection alone, malignant tumours demand additional chemotherapy and radiotherapy following surgical removal.


Assuntos
Neoplasias Encefálicas , Glândula Pineal , Pinealoma , Humanos , Pinealoma/terapia , Pinealoma/diagnóstico , Neoplasias Encefálicas/terapia , Neoplasias Encefálicas/diagnóstico , Glândula Pineal/patologia , Países em Desenvolvimento , Neoplasias Embrionárias de Células Germinativas/terapia , Neoplasias Embrionárias de Células Germinativas/diagnóstico , Consenso , Germinoma/terapia , Germinoma/diagnóstico
5.
J Pak Med Assoc ; 74(3 (Supple-3)): S191-S200, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-39262081

RESUMO

Almost any primary or metastatic brain tumour can manifest in intraventricular (IV) locations. These tumours may either originate within the ventricular system or extend into the IV space through growth. Such neoplasms represent a broad spectrum, with supratentorial IV tumours forming a heterogeneous group. This group includes primary ependymal tumours, central neurocytomas, choroid plexus tumours, and notably, meningiomas, as well as a variety of non-neoplastic, benign, glial, and metastatic lesions that can secondarily invade the IV compartment. Often presenting with nonspecific symptoms, these tumours can lead to delayed medical attention. The diversity in potential diagnoses, combined with their deep and complex locations, poses significant management challenges. This paper aims to delineate optimal management strategies, underscoring the importance of multidisciplinary care, especially in settings with limited resources, to effectively navigate the complexities associated with treating intraventricular brain tumours.


Assuntos
Neoplasias do Ventrículo Cerebral , Humanos , Neoplasias do Ventrículo Cerebral/terapia , Neoplasias do Ventrículo Cerebral/diagnóstico , Neoplasias do Ventrículo Cerebral/patologia , Neoplasias do Ventrículo Cerebral/cirurgia , Países em Desenvolvimento , Neoplasias do Plexo Corióideo/terapia , Neoplasias do Plexo Corióideo/patologia , Neoplasias do Plexo Corióideo/diagnóstico , Ependimoma/terapia , Ependimoma/diagnóstico , Ependimoma/patologia , Neurocitoma/terapia , Neurocitoma/diagnóstico , Neurocitoma/patologia , Meningioma/terapia , Meningioma/patologia , Consenso , Neoplasias Meníngeas/terapia
6.
Neurol Sci ; 44(6): 1917-1929, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36773209

RESUMO

BACKGROUND: Gliomas make up approximately 26.5% of all primary CNS tumors and 80.7% of malignant tumors. They are classified according to histology, location, and genetics. Grade III and IV gliomas are considered high-grade gliomas (HGGs). The cognitive signs and symptoms are attributed to mass defects depending on location, growth rapidity, and edema. Our purpose is to review the cognitive status of patients diagnosed with HGGs; the effect of treatments including surgical resection, radiotherapy, and chemotherapy; and the predictors of the cognitive status. METHODS: We utilized the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines as a template for the methodology. A comprehensive literature search was performed from three databases (PubMed, ScienceDirect, and Cochrane Library) for clinical trials and longitudinal studies on patients diagnosed with HGGs assessing their cognitive status. RESULTS: Thirteen studies were selected among which 9 assessed cognitive function before and after treatment. One assessed the consistency of cognitive complaints and objective cognitive functioning. Three reported factors affecting disease progression and cognitive status. Most HGG patients have impairment in at least one cognitive domain. Treatments including surgical resection or radio-chemotherapy did not impair cognitive status. DISCUSSION: The cognitive status could be used to assess sub-clinical tumor progression. Factors correlated to cognitive status were tumor location, edema, and grade. Patient characteristics correlated were pre-operative epilepsy, corticosteroid use, and age at the time of diagnosis. CONCLUSION: Assessment of the cognitive status of HGG patients indicates sub-clinical tumor progression and may be used to assess treatment outcomes.


Assuntos
Neoplasias Encefálicas , Glioma , Humanos , Neoplasias Encefálicas/terapia , Neoplasias Encefálicas/tratamento farmacológico , Glioma/complicações , Glioma/terapia , Glioma/patologia , Resultado do Tratamento , Progressão da Doença , Cognição
7.
Childs Nerv Syst ; 39(5): 1159-1171, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-36826523

RESUMO

INTRODUCTION: Medulloblastoma (MB) is the most common malignant pediatric brain tumor. The mainstay of treatment is maximum surgical resection and craniospinal radiation, which may be followed by chemotherapy. The debilitating effect of the tumor and the intensive treatment approaches in MB lead to long-term neuropsychological, physical, and chronic medical problems. We conducted a systematic review to assess the quality of life (QoL) in the long-term survivors of MB and the factors leading to compromised QoL. METHODS: We utilized the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines for our review. A comprehensive literature search was performed using PubMed, Cochrane Library, Digital Commons Network, and Wiley Online Library databases to search for articles having quality of life, medulloblastoma, and pediatric survivors in title or abstract. We removed duplicates and screened through titles, and full texts. Twelve articles were included in our study. Articles using and reporting all domains of PaedsQL were included in the meta-analysis. The PaedsQL scores of survivors and their caregivers were compared. Subgroup analysis was conducted for craniospinal and proton radiotherapy groups. RESULTS: As compared to other posterior fossa tumors, MB survivors have the lowest QoL scores. There is a difference in the perception of QoL of survivors between caregivers and survivors themselves with survivors rating themselves higher in several domains. The overall PaedsQL scores were significantly different for both groups (p < 0.001). Subgroup analysis showed that the difference between those who were treated with craniospinal or proton radiation was not significant (p = 0.76). For the subscales, physical (p = 0.005), psychosocial (p = 0.0003), and school (p = 0.03) perceptions were significantly different for the survivors and their caregivers; however, psychosocial (p = 0.80) and emotional (p = 0.93) scales were not different for the survivors or caregivers. Patient characteristics related to a worse QoL included disease severity, metastatic disease, lesser family income, smaller current ventricle size, need for permanent hydrocephalus treatment, and lesser age at diagnosis. CONCLUSION: An analysis of various studies, using different measures of QoL, concludes that QoL is compromised in all pediatric survivors of MB; however, the perception of QoL of the survivors is better than objective or caretaker-rated QoL.


Assuntos
Neoplasias Encefálicas , Neoplasias Cerebelares , Meduloblastoma , Criança , Humanos , Meduloblastoma/radioterapia , Qualidade de Vida , Prótons , Neoplasias Encefálicas/radioterapia , Sobreviventes/psicologia , Neoplasias Cerebelares/tratamento farmacológico
8.
J Pak Med Assoc ; 72(11): 2339-2340, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37013321

RESUMO

Medulloblastoma (MB) is among the most common malignant paediatric brain tumours usually arising in the cerebellum. The treatment is surgical resection followed by craniospinal radiation with or without chemotherapy. We assessed the current literature on survivors of MB and their quality of life (QoL). The QoL of MB survivors is significantly compromised in terms of decreased neurocognitive functions, Intelligence Quotient (IQ), and social functioning. These also lead to a compromised overall performance, school performance, lack of employment, social isolation, and caregiver burden. The survivors often self-reported better performances as compared to objective performance and that rated by the caregivers. The predictors of worse QoL include earlier age at diagnosis, hydrocephalus, shunt placement, altered mental status at diagnosis, incomplete/subtotal resection of the tumour, and metastatic disease.


Assuntos
Neoplasias Encefálicas , Neoplasias Cerebelares , Meduloblastoma , Criança , Humanos , Meduloblastoma/tratamento farmacológico , Meduloblastoma/cirurgia , Qualidade de Vida , Neoplasias Cerebelares/tratamento farmacológico , Neoplasias Cerebelares/psicologia , Neoplasias Encefálicas/terapia , Sobreviventes/psicologia
9.
J Med Virol ; 93(12): 6433-6436, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34289134

RESUMO

Lassa fever, caused by the Lassa virus of the Arenaviruses family, is a re-emerging public health concern that has led to 300,000 infections and 5000 deaths annually in Africa. Highly prevalent in Sierra Leone, Liberia, Guinea, Nigeria, Côte d'lvoire, Ghana, Togo, and Benin, patients infected with the virus can manifest with cough, sore throat, headache, nausea, and vomiting among other symptoms. Coexisting with the coronavirus disease 2019 (COVID-19) pandemic and its impacts, cases of Lassa fever in the African population have been reported to decrease due to hesitancy in visiting clinics that leads to unreported cases-all contributing to a silent outbreak in West Africa. Thus, to overcome current burdens, gaps, and challenges caused by Lassa fever amidst COVID-19 in Africa, various recommendations for efficient control of transmission, measures for disease containment, and strategies to correct misperceptions were made.


Assuntos
COVID-19/epidemiologia , COVID-19/prevenção & controle , Febre Lassa/epidemiologia , Febre Lassa/prevenção & controle , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , África Ocidental/epidemiologia , COVID-19/diagnóstico , Surtos de Doenças/estatística & dados numéricos , Humanos , Febre Lassa/diagnóstico , Vírus Lassa , Técnicas de Diagnóstico Molecular , Saúde Pública , SARS-CoV-2 , Vacinas Virais
12.
Clin Neurol Neurosurg ; 244: 108409, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38959786

RESUMO

Chemotherapy in brain tumors is tailored based on tumor type, grade, and molecular markers, which are crucial for predicting responses and survival outcomes. This review summarizes the role of chemotherapy in gliomas, glioneuronal and neuronal tumors, ependymomas, choroid plexus tumors, medulloblastomas, and meningiomas, discussing standard treatment protocols and recent developments in targeted therapies.Furthermore, the studies reporting the integration of MRI-based radiomics and deep learning models for predicting treatment outcomes are reviewed. Advances in MRI-based radiomics and deep learning models have significantly enhanced the prediction of chemotherapeutic benefits, survival prediction following chemotherapy, and differentiating tumor progression with psuedoprogression. These non-invasive techniques offer valuable insights into tumor characteristics and treatment responses, facilitating personalized therapeutic strategies. Further research is warranted to refine these models and expand their applicability across different brain tumor types.


Assuntos
Neoplasias Encefálicas , Imageamento por Ressonância Magnética , Humanos , Neoplasias Encefálicas/diagnóstico por imagem , Neoplasias Encefálicas/tratamento farmacológico , Imageamento por Ressonância Magnética/métodos , Resultado do Tratamento , Antineoplásicos/uso terapêutico , Glioma/tratamento farmacológico , Glioma/diagnóstico por imagem
13.
Chin Clin Oncol ; 13(Suppl 1): AB083, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39295401

RESUMO

BACKGROUND: Seizures are a common manifestation in patients with low grade glioma (60-75%), and 60-90% patients attain seizure freedom after resection. Seizure control varies with histopathology, extent of resection and type of seizures. There is inconsistency in literature regarding utility of anti-epileptic drugs (AEDs) after tumor resection. We aimed to determine factors associated with seizure control in patients after low-grade glioma (LGG) resection. METHODS: It was a retrospective cohort study. Medical record of all patients who underwent LGG resection at our center from 2019 to 2021 were reviewed; 77 patients fulfilled the selection criteria. Patients were also contacted via phone calls to collect information about their seizure control as per Engel Classification. Data was analyzed using SPSSv21. RESULTS: The mean age was 34.9±11.3 years, and there was male predominance (62; 80.5%). Generalized seizures were the most common type (54; 70%), and Levetiracetam was the most commonly prescribed AED (60; 77.9%). The median duration of pre-operative AED use was 4 [interquartile range (IQR): 1-24] months. Frontal lobe was the most common location of tumor (36; 46.8%). Most of the patients had their surgery under general anesthesia (51; 61.4%), while 29 (37.7%) underwent awake craniotomy. Nearly half of the patients had a gross total resection (31; 40.3%), and another 15 (19.5%) had near-total resection. Sixteen patients (20.8%) had their AEDs stopped within first 6 months post-operatively (at variable intervals), and all of them had Engel Class IA to ID control at time of follow-up (P=0.008). The 12 patients with grade I glioma also had optimum seizure control (P=0.03). CONCLUSIONS: Patients with grade I glioma have better seizure control after surgery. Tumor biopsy is associated with worse seizure outcome, though not statistically significant. Larger studies are needed to determine the ideal time and patient group for discontinuing AED after surgery.


Assuntos
Epilepsia , Glioma , Humanos , Estudos Retrospectivos , Glioma/cirurgia , Glioma/complicações , Masculino , Feminino , Adulto , Epilepsia/cirurgia , Convulsões , Estudos de Coortes , Pessoa de Meia-Idade , Anticonvulsivantes/uso terapêutico , Anticonvulsivantes/farmacologia , Neoplasias Encefálicas/cirurgia , Neoplasias Encefálicas/complicações
14.
World Neurosurg X ; 22: 100321, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38440377

RESUMO

Background: Brain Arteriovenous Malformations (AVMs) located in proximity to eloquent brain regions are associated with poor surgical outcomes, which may be due to higher rates of postoperative neurological deterioration. Current treatment protocols include stereotactic radiosurgery, transarterial embolization, and surgical resection under general anesthesia. Awake Craniotomy (AC) allows intraoperative mapping of eloquent areas to improve post-operative neurologic outcomes. Objectives: We reviewed the current literature reporting surgical outcomes and assessed the feasibility of AC for AVM resection. Methods: The PRISMA guidelines were utilized as a template for the review. Three databases including PubMed, Scopus, and Cochrane Library were searched using a predefined search strategy. After removing duplicates and screening, full texts were analyzed. Outcomes including the extent of resection, intra-operative and post-operative complications, and long-term neurologic outcomes were assessed. Results: 12 studies were included with a total of 122 AVM cases. Spetzler-Martin grading was used for the classification of the AVMs. The asleep-awake-asleep protocol was most commonly used for AC. Complete resection was achieved in all cases except 5. Intraoperative complications included seizures (n = 2) and bleeding (n = 4). Short-term post-operative complications included hemorrhage (n = 3), neurologic dysfunctions including paresis (n = 3), hemiplegia (n = 10), dysphasia/aphasia (n = 6), cranial nerve dysfunction (n = 3), and pulmonary embolism (n = 1). Almost all neurological deficits after surgery gradually improved on subsequent follow-ups. Conclusion: AVMs may shift the anatomical location of eloquent brain areas which may be mapped during AC. All studies recommended AC for the resection of AVMs in close proximity to eloquent areas as mapping during AC identifies the eloquent cortex thus promoting careful tissue handling which may preserve neurologic function and/or predict the postoperative functional status of the patients We, therefore, conclude that AC is a viable modality for AVMs resection near eloquent language and motor areas.

15.
Chin Clin Oncol ; 13(Suppl 1): AB076, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39295394

RESUMO

BACKGROUND: Eighty percent of the global epilepsy burden is borne by developing countries, and 30% of these patients have drug-resistant epilepsy (DRE). Epilepsy surgery (ES) can significantly improve the cognition and quality of life in DRE. A comprehensive epilepsy center was established in Pakistan in 2010, the only facility for ES in a country of 231 million people. Hundreds of epilepsy patients are medically managed at the center each year. We aimed to study seizure control in all ES cases performed at the only comprehensive epilepsy center in the country during last 10 years. METHODS: It was a retrospective cohort study. Medical records of all cases of ES performed at our center from 2012 to 2021 were retrieved, through the Hospital's Information Management System. Patients were also contacted via phone calls where needed, to collect information about their seizure control as per Engel Classification. Data was analyzed using SPSSv21. RESULTS: Thirty-three surgeries including 10 temporal lobectomies with amygdalohippocampectomy, 11 selective amygdalohippocampectomies, 9 corpus callosotomies, 1 callosotomy with lesionectomy, 1 lesionectomy and 1 temporal lobectomy were performed. The median age of patients was 23: [18-31] years. Complex partial seizures were most common (14; 42.4%), followed by generalized seizures (10; 30.3%). The median duration of AEDs before surgery was 6 (IQR: 3.25-13.75) years. Eighteen (54.5%) patients had complete freedom from disabling seizures (Engel Class IA) at a median follow-up of 3.25 (IQR: 1.12-6) years. All patients continued to receive antiepileptic drugs after surgery, and all procedures had nearly 50% optimum seizure control outcomes. CONCLUSIONS: The clinical outcomes of ES performed at our center are consistent with evidence. However, the small volume highlights the underutilization of this extremely important service. More studies are needed to identify the factors responsible for this disparity, so that all DRE patients have access to ES.


Assuntos
Epilepsia , Humanos , Masculino , Feminino , Adulto , Estudos Retrospectivos , Paquistão , Epilepsia/cirurgia , Adolescente , Adulto Jovem
16.
Chin Clin Oncol ; 13(Suppl 1): AB082, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39295400

RESUMO

BACKGROUND: Potential barriers to epilepsy surgery can be divided into two broad groups: reluctance of patients/caregivers and deficient knowledge of neurologists. Pakistan, in particular, faces an epilepsy surgery treatment gap of 70-94%. This study aimed to assess the knowledge and practice of neurologists and the knowledge of the patients diagnosed with epilepsy to identify the barriers to adequate provision of this modality in Pakistan. METHODS: We conducted a cross-sectional study comprising two surveys. Records of patients diagnosed with epilepsy at our hospital during 2.5 years were retrieved from the Neurophysiology database. The second form was designed for neurologists working in Pakistan. The questionnaires were disseminated via email to neurologists and phone calls to patients. RESULTS: In the patients' survey, we obtained 194 responses from caregivers. The median age of patients was 10 years [interquartile range (IQR): 6-14 years]. We found that 74.2% (n=144) of patients were unaware of surgical options in medically refractory epilepsy (MRE). Therefore, most did not comment on it due to the limited information. Forty-eight patients (24.8%) reported more than 1 seizure per month, and 29 (60.4%) were unaware of the surgical treatment. Seizures were disabling in 88% (n=171) of patients. Patients taking more AEDs were significantly more likely to be aware of surgical options (P=0.001). In the survey from neurologists, only 6.6% (n=4) always discussed epilepsy surgery with MRE patients. Around half of the neurologists, 44.3% (n=27), had never referred a patient for epilepsy surgery. However, 95.1% (n=58) were aware of the under-utilization of epilepsy surgery, and 67.2% (n=41) believed that epilepsy surgery is under-recommended. Almost all neurologists (n=60; 98.4%) believe that comprehensive epilepsy treatment centers are required in the country. CONCLUSIONS: In our survey, we found a lack of awareness in both patients and neurologists to be a major barrier. This contrasts the literature from developed or high-income countries, where physician awareness seems adequate, and stigmas associated with surgery seem to be the major barrier. Multifaceted approaches catered to local concerns are necessary to address these hindrances.


Assuntos
Epilepsia , Neurologistas , Humanos , Epilepsia/cirurgia , Masculino , Feminino , Inquéritos e Questionários , Estudos Transversais , Adolescente , Criança , Adulto
17.
Chin Clin Oncol ; 13(Suppl 1): AB072, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39295390

RESUMO

BACKGROUND: Awake craniotomy (AC) allows intraoperative brain mapping (ioBM) for maximum lesion resection while monitoring and preserving neurological function. Conventionally, language, visuospatial assessment, and motor functions are mapped, while assessment of executive functions (EFs) is uncommon. Impaired EF may lead to occupational, personal, and social limitations, thus, a compromised quality of life. METHODS: A comprehensive literature search was conducted through Scopus, Medline, and Cochrane Library using a pre-defined search strategy. Articles were selected after duplicates removal, initial screening, and full-text assessment. The demographic details, ioBM techniques, intraoperative tasks, and their assessments, the extent of resection (EOR), post-op EF and neurocognitive status, and feasibility and potential adverse effects of the procedure were reviewed. The correlations of tumor locations with intraoperative EF deficits were also assessed. RESULTS: A total of 13 studies with intraoperative EF assessment of 351 patients were reviewed. Awake-asleep-awake protocol was most commonly used. Most studies performed ioBM using bipolar stimulation, with a frequency of 60 Hz, pulse durations ranging 1-2 ms, and intensity ranging 2-6 mA. Cognitive function was monitored with the Stroop task, spatial-2 back test, line-bisection test, trail-making-task, and digit-span tests. All studies reported similar or better EOR in patients with ioBM for EF. When comparing the neuropsychological outcomes of patients with ioBM of EF to those without it, all studies reported significantly better EF preservation in ioBM groups. Most authors reported EF mapping as a feasible tool to obtain satisfactory outcomes. Adverse effects included intraoperative seizures which were easily controlled. CONCLUSIONS: AC with ioBM of EF is a safe, effective, and feasible technique that allows satisfactory EOR and improved neurocognitive outcomes with minimal adverse effects.


Assuntos
Craniotomia , Função Executiva , Humanos , Craniotomia/métodos , Função Executiva/fisiologia , Mapeamento Encefálico/métodos , Vigília , Feminino , Masculino , Neoplasias Encefálicas/cirurgia
18.
Chin Clin Oncol ; 13(Suppl 1): AB093, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39295411

RESUMO

BACKGROUND: Central nervous system (CNS) tumours, especially glioma, are a complex disease and many challenges are encountered in their treatment. Artificial intelligence (AI) has made a colossal impact in many walks of life at a low cost. However, this avenue still needs to be explored in healthcare settings, demanding investment of resources towards growth in this area. We aim to develop machine learning (ML) algorithms to facilitate the accurate diagnosis and precise mapping of the brain tumour. METHODS: We queried the data from 2019 to 2022 and brain magnetic resonance imaging (MRI) of glioma patients were extracted. Images that had both T1-contrast and T2-fluid-attenuated inversion recovery (T2-FLAIR) volume sequences available were included. MRI images were annotated by a team supervised by a neuroradiologist. The extracted MRIs thus obtained were then fed to the preprocessing pipeline to extract brains using SynthStrip. They were further fed to the deep learning-based semantic segmentation pipelines using UNet-based architecture with convolutional neural network (CNN) at its backbone. Subsequently, the algorithm was tested to assess the efficacy in the pixel-wise diagnosis of tumours. RESULTS: In total, 69 samples of low-grade glioma (LGG) were used out of which 62 were used for fine-tuning a pre-trained model trained on brain tumor segmentation (BraTS) 2020 and 7 were used for testing. For the evaluation of the model, the Dice coefficient was used as the metric. The average Dice coefficient on the 7 test samples was 0.94. CONCLUSIONS: With the advent of technology, AI continues to modify our lifestyles. It is critical to adapt this technology in healthcare with the aim of improving the provision of patient care. We present our preliminary data for the use of ML algorithms in the diagnosis and segmentation of glioma. The promising result with comparable accuracy highlights the importance of early adaptation of this nascent technology.


Assuntos
Aprendizado Profundo , Glioma , Imageamento por Ressonância Magnética , Humanos , Glioma/classificação , Glioma/patologia , Imageamento por Ressonância Magnética/métodos , Masculino , Neoplasias Encefálicas/diagnóstico por imagem , Neoplasias Encefálicas/classificação , Neoplasias Encefálicas/patologia , Feminino
19.
Curr Rev Clin Exp Pharmacol ; 18(2): 94-109, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-35319407

RESUMO

Psychedelics might be the oldest psychoactive agents known to be used for inducing religious or mystical experiences. Their strong psychoactive effect was discovered accidentally in 1943 after the synthesis of Lysergic acid diethylamide (LSD) in 1937. These drugs became a mainstream area of research following the synthesis of LSD; however, several political and social factors led to their ban in 1966, after which research on psychedelics remained limited. These drugs became a major topic of scientific and ethical debate in the 1990's and the recent times have seen a 'Psychedelic renaissance' where the therapeutic value of psychedelics is being reconsidered. This article reports the historical perspective of psychedelics, pharmacologic action by 5-HT2A receptor agonism, and psychological effects and compares the proposed therapeutic uses, including uses in depression, PTSD, anxiety- related disorders, drug and alcohol addiction, neurodegenerative diseases, and auto-immune diseases to potential harms including the development of tolerance, hallucinogen persisting perception disorder, and potential psychosis. An analysis of history, pharmacology, and comparison of benefits and harms lead to the conclusion that the potential therapeutic benefits significantly outweigh the potential harms; thus, further research and clinical trials need to be conducted across different countries and cultures for their legal approval in clinical use.


Assuntos
Alcoolismo , Alucinógenos , Transtornos Psicóticos , Humanos , Alcoolismo/tratamento farmacológico , Transtornos de Ansiedade/tratamento farmacológico , Alucinógenos/efeitos adversos , Alucinógenos/uso terapêutico , Transtornos Psicóticos/tratamento farmacológico , Psicotrópicos/uso terapêutico
20.
Cureus ; 15(1): e34065, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36843830

RESUMO

Introduction Current evidence from developed countries on lumbar spine surgeries under regional anesthesia reports it to be superior to general anesthesia (GA) in terms of decreased anesthesia time, operative time, intraoperative complications such as bleeding, postoperative complications, length of hospital stay, and overall cost. We report the first case series from Pakistan on lumbar spine surgeries under regional anesthesia. Methods We utilized spinal anesthesia (SA) for lumbar spine surgeries of 45 patients in a tertiary-care hospital in Karachi, Pakistan. The surgeries were performed as day-care procedures. The preoperative assessments included MRI findings, visual analogue scale (VAS), pre-operative limb powers, and straight leg raise (SLR). Other assessments included total SA time, total surgical time, time of stay in the post-anesthesia care unit (PACU), complications, and total hospital cost. SPSS v26 was used to calculate means and standard deviations. Results We found the total SA time to be about 45 to 60 minutes in most patients (95.6%). The total surgical time was 30 to 45 minutes for most patients. The average time of stay in the PACU was three to four hours. The VAS scores were significantly improved postoperatively with 46.7% (n=21) of patients with a score of 3, 46.7% (n=21) with a score of 2, and 6.7% (n=3) with a score of 1. 71.1% (n=32) patients had day-care surgery, 22.2% (n=10) stayed in the hospital for one day, and 6.7% (n=3) patients stayed for more than one day. Most patients (88.9%, n=40) had no complications, whereas only 11.1% (n=5) complained of PDPH. The total hospital cost was also lesser than procedures under GA. Conclusion We conclude that SA is well tolerated and has favorable outcomes in terms of cost-effectiveness, anesthesia time, surgical time, and hospital stay; therefore, SA should be considered for a greater number of lumbar spine surgeries, especially in low-middle income countries.

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