RESUMO
Temporal encephaloceles (TE) are an under-identified, potentially intervenable cause of epilepsy. This systematic review consolidates the current data to identify the major clinical, neuroimaging, and EEG features and surgical outcomes of epilepsy associated with TE. Literature searches were carried out using MEDLINE, Embase, PsycINFO, Scopus, and Cochrane Library databases from inception to December 7, 2023. Studies were included if they described clinical, neuroimaging, EEG, or surgical data in ≥5 patients with TE and epilepsy. Of 562 studies identified in the search, 24 met the eligibility criteria, reporting 423 unique patients with both epilepsy and TE. Compared to epilepsy patients without TE, those with TE had a higher mean age of seizure onset and were less likely to have a history of febrile seizures. Seizure semiologies were variable, but primarily mirrored temporal lobe onset patterns. Epilepsy patients with TE had a higher likelihood of having clinical or radiographic features of idiopathic intracranial hypertension (IIH) than those without. Brain MRI may show ipsilateral mesial temporal sclerosis (16 %). CT scans of the skull base usually revealed bony defects near the TE (90 %). Brain PET scans primarily showed ipsilateral temporal lobe hypometabolism (80 %), mostly in the anterior temporal lobe (67 %). Scalp EEG mostly lateralized ipsilateral to the implicated TE (92 % seizure onset) and localized to the temporal lobe (96 %). Intracranial EEG revealed seizure onset near the TE (11 of 12 cases including TE-adjacent electrodes) with variable timing of spread to the ipsilateral hippocampus. After surgical treatment of the TE, the rate of Engel I or ILAE 1 outcomes at one year was 75 % for lesionectomy, 85 % for anterior temporal lobectomy (ATL), and 80 % for ATL with amygdalohippocampectomy. Further studies are needed to better elucidate the relationship between IIH, TE, and epilepsy, improve the identification of TE, and optimize surgical interventions.
RESUMO
PURPOSE: Stakeholders have expressed concerns regarding the impact of visiting trainees and physicians from high-income countries (HICs) providing education and/or short-term clinical care in low- and middle-income countries (LMICs). This systematic review aimed to summarize LMIC host perceptions of visiting trainees and physicians from HICs during short-term experiences in global health (STEGH). METHOD: In September 2018 then again in August 2020, the authors searched 7 databases (PubMed, Embase, Scopus, Web of Science, ERIC, Cochrane Library, Global Index Medicus) for peer-reviewed studies that described LMIC host perceptions of STEGH. They extracted information pertaining to study design, participant demographics, participant perceptions, representation of LMICs and HICs, and HIC visitors' roles and used thematic synthesis to code the text, develop descriptive themes, and generate analytical themes. RESULTS: Of the 4,020 studies identified, 17 met the inclusion criteria. In total, the studies included 448 participants, of which 395 (88%) represented LMICs. The authors identified and organized 42 codes under 8 descriptive themes. They further organized these descriptive themes into 4 analytical themes related to STEGH: (1) sociocultural and contextual differences, (2) institutional and programmatic components, (3) impact on host institutions and individuals, and (4) visitor characteristics and conduct. CONCLUSIONS: STEGH can have both beneficial and detrimental effects on LMIC host institutions and individuals. The authors translated these findings into a set of evidence-based best practices for STEGH that provide specific guidance for LMIC and HIC stakeholders. Moving forward, LMIC and HIC institutions must work together to focus on the quality of their relationships and create conditions in which all stakeholders feel empowered to openly communicate to ensure equity and mutual benefit for all parties.
