Publications by authors named "Abdallah Abbas"

Objective: This systematic review and meta-analysis evaluates the efficacy of bilateral subthalamic nucleus (STN) deep brain stimulation (DBS) in improving gastric motility in patients with Parkinson's disease (PD).

Materials And Methods: A systematic search was conducted in Scopus, Web of Science, PubMed, and Cochrane CENTRAL until December 15, 2024. Observational studies and clinical trials evaluating DBS effects on gastric motility and gastric emptying in patients with PD were included.

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Background: Retinal artery occlusion (RAO) is a vision-threatening condition with limited therapeutic options. Hyperbaric oxygen therapy (HBOT) has emerged as a potential treatment to enhance retinal oxygenation and salvage ischemic tissue, though its efficacy and safety remain debated.

Methods: We followed the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines and the Cochrane Handbook for Systematic Reviews of Interventions.

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This systematic review and meta-analysis aims to evaluate the effectiveness and safety of perampanel (PER) as adjunctive therapy in patients with Lennox-Gastaut Syndrome (LGS), focusing on seizure outcomes and adverse events (AEs). A comprehensive literature search was conducted across PubMed, Scopus, Web of Science, and Cochrane CENTRAL up to June 2025. Clinical trials and observational studies assessing PER in LGS patients were included.

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Background: This meta-analysis addresses the efficacy and safety of tixagevimab-cilgavimab as pre-exposure prophylaxis against COVID-19 in immunocompromised patients, particularly during the Omicron variant surge. Given the limited vaccine response in this population, alternative prophylactic strategies are critical.

Methods: Following PRISMA guidelines, we comprehensively searched electronic databases, including PubMed, Scopus, Web of Science, and Embase, up to June 22, 2024.

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To evaluate the safety and efficacy of recombinant human prourokinase (rhPro-UK) administered via intravenous (IV) and intra-arterial (IA) routes in acute ischemic stroke (AIS) patients compared with standard treatments. A comprehensive search was conducted in accordance with PRISMA guidelines across Scopus, Web of Science, and PubMed until 11 December 2024. Randomized controlled trials (RCTs) assessing rhPro-UK's efficacy and safety were included.

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Background: Endovascular thrombectomy (EVT) is the gold standard for eligible acute ischemic stroke (AIS) patients with large vessel occlusion (LVO). A few trials studied EVT in AIS-LVO with large ischemic infarcts. We investigated the impact of intravenous thrombolysis (IVT) on EVT outcomes in those patients.

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The implementation of artificial intelligence (AI), particularly Viz.ai software in stroke care, has emerged as a promising tool to enhance the detection of large vessel occlusion (LVO) and to improve stroke workflow metrics and patient outcomes. The aim of this systematic review and meta-analysis is to evaluate the impact of Viz.

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Objective: This study aimed to conduct a meta-analysis comparing the efficacy of temporary (ie, without implantable pulse generator) spinal cord stimulation (SCS) and pulsed radiofrequency (PRF) in managing postherpetic neuralgia (PHN).

Materials And Methods: A systematic review was performed using Scopus, PubMed, Cochrane CENTRAL, Web of Science, and Embase databases through January 1, 2025, targeting randomized controlled trials (RCTs) comparing SCS and PRF in PHN management. Two independent reviewers undertook screening, extracted data, and assessed risk of bias using the Cochrane Risk-of-Bias 2.

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Objective: To evaluate the safety and efficacy of Diroximel Fumarate (DRF) in patients with different relapsing forms of MS (RMS) through systematic review and meta-analysis.

Methods: A systematic review and meta-analysis adhering to PRISMA guidelines was conducted. Scopus, PubMed, and Cochrane CENTRAL databases were searched until December 6, 2024, for clinical trials and observational studies on DRF in RMS.

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Introduction: Deep brain stimulation (DBS) has emerged as a promising therapeutic approach, offering targeted neuromodulation for movement disorders refractory to medical management or stereotactic surgery. However, assessing its benefits against potential risks is essential. This meta-analysis aims to evaluate the efficacy and safety of DBS in movement disorders, shedding light on its role as an alternative therapeutic option.

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Background: Endovascular thrombectomy (EVT) is the gold standard treatment for acute ischemic stroke (AIS) patients with large vessel occlusion (LVO). Multiple factors can influence EVT outcomes, including procedural and patient-related variables. This meta-analysis investigated the impact of periprocedural hemoglobin (Hb) levels on EVT outcomes.

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Background: Alzheimer's disease (AD) is a neurodegenerative disorder and the most common cause of dementia among older adults. Existing treatments-such as cholinesterase inhibitors, N-methyl-D-aspartate receptor antagonists, and monoclonal antibodies targeting amyloid beta-can improve functional and neuropsychiatric outcomes but fail to prevent disease onset, halt progression, or adequately reduce amyloid-beta burden. Consequently, research efforts have shifted to primary prevention through immunization, although the efficacy of these strategies remains uncertain.

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Background: Diabetes mellitus affects more than half a billion people globally, often leading to painful diabetic neuropathy (PDN). Spinal cord stimulation (SCS) has emerged as a promising treatment for PDN.

Objective: This meta-analysis evaluated the efficacy of SCS compared with the best medical therapy (BMT) for PDN.

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Background: Essential tremor (ET) is a common neurological disorder that significantly impacts daily activities. This meta-analysis aims to evaluate the safety and efficacy of cerebellar repetitive Transcranial Magnetic Stimulation (rTMS) and cerebellar Theta Burst Stimulation (TBS) in treating ET.

Methods: We searched through June 14, 2024, four databases (Scopus, PubMed, Web of Science, and Cochrane CENTRAL) to identify clinical trials investigating cerebellar rTMS or TBS in ET patients.

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Background: Hypertension, the first global modifiable risk factor for cardiovascular disease (CVD) morbidity and mortality, is a consequential and remediable threat to the health of individuals and society. Therefore, we conducted this study to explore the role of calcium (Ca), magnesium (Mg), and vitamin D (Vit-D) supplementation as complementary therapies for hypertension, focusing on their effects on systolic blood pressure (SBP), diastolic blood pressure (DBP), and pulse rate.

Methods: This systematic review and meta-analysis examined relevant 6509 articles in PubMed, Scopus, Web of Science, and Cochrane CENTRAL up to October 2024.

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Background: Endovascular thrombectomy (EVT) is the gold standard for acute ischemic stroke (AIS) with large vessel occlusion (LVO). However, concomitant intracranial hemorrhage (ICH) might render AIS-LVO patients ineligible for EVT in real-life practice.

Objective: To provide robust evidence regarding the outcomes of EVT in AIS-LVO patients with concomitant ICH.

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Background: The primary objective of this study is to quantify the incidence of stroke following cardiac surgery over 17 years at our center. Additionally, we evaluated the potential risk factors leading to postoperative stroke in these patients.

Methods: Patient characteristics and perioperative data were collected for 24,412 patients undergoing surgery at our center between January 2005 and December 2021.

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Deep brain stimulation (DBS) is a valuable treatment for Parkinson's disease (PD), but postoperative delirium (POD) is a common complication. Understanding the risk factors for POD is crucial for optimizing patient selection and developing preventative measures. This systematic review and meta-analysis aims to identify predictors of POD in PD patients undergoing DBS surgery.

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Background: Autism Spectrum Disorder (ASD) is a complex lifelong neurodevelopmental disorder with a high and increasing global prevalence. Although the precise causes are unknown, both genetic and environmental factors, including maternal ones during pregnancy, significantly influence its development. Therefore, this study endeavors to explore the potential causes of autism, including maternal and paternal prenatal risk factors, as well as antenatal and natal maternal risk factors, and their associations with the severity of ASD in mothers of children with ASD, from February to May 2024.

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Objective: This systematic review and meta-analysis aimed to compare the efficacy and safety of deep brain stimulation (DBS) targeting subthalamic nucleus (STN) versus the globus pallidus internus (GPI) in the treatment of dystonia.

Methods: A comprehensive search strategy was implemented up to July 2024, across five databases, identifying studies relevant to STN-DBS and GPI-DBS in dystonia. Eligibility criteria included randomized controlled trials (RCTs) and observational studies comparing the two interventions.

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Article Synopsis
  • Narcolepsy is a chronic condition marked by excessive daytime sleepiness and cataplexy, and sodium oxybate (SXB) has been identified as the only effective treatment for its symptoms.
  • The study reviewed five randomized controlled trials (RCTs) to evaluate the effectiveness of SXB in reducing cataplexy attacks and improving wakefulness while also considering its safety by monitoring adverse events.
  • Results showed that SXB significantly reduced weekly cataplexy attacks and improved outcomes on various tests compared to placebo, particularly at higher doses, indicating it is an effective treatment for managing narcolepsy symptoms with a reasonably safe profile.
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Despite the currently available treatment, one-third of epilepsy patients continue to experience seizures. Transcranial direct current stimulation (tDCS) has emerged as a potential neuromodulation approach for the non-invasive treatment of refractory epilepsy. This study aims to provide a comprehensive investigation of the efficacy and safety of tDCS in patients with drug-resistant epilepsy.

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Article Synopsis
  • This systematic review and meta-analysis aimed to figure out how common venous thromboembolism (VTE) is in patients with amyotrophic lateral sclerosis (ALS) and what factors increase that risk.
  • After analyzing data from eight studies with over 26,000 ALS patients, the annual incidence of VTE was found to be approximately 22 cases per 1,000 person-years, with slightly different rates for men and women.
  • Key risk factors identified for VTE in ALS patients include a previous history of VTE, the use of non-invasive ventilation, immobility, and a decline in functional status, highlighting the need for preventive measures for these patients.
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Background: Systematic review with meta-analysis integrates findings from multiple studies, offering robust conclusions on treatment effects and guiding evidence-based medicine. However, the process is often hampered by challenges such as inconsistent data reporting, complex calculations, and time constraints. Researchers must convert various statistical measures into a common format, which can be error-prone and labor-intensive without the right tools.

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Article Synopsis
  • Alzheimer's disease (AD) causes significant cognitive decline and higher health risks in older adults, with mitochondrial dysfunction being a key contributor.
  • Mitochondrial issues include problems with energy metabolism, calcium regulation, and cellular damage, which are linked to several complex mechanisms in AD pathology.
  • While lecanemab is currently the only FDA-approved drug for AD, various therapies targeting mitochondrial dysfunction are explored, including antioxidants, nutritional supplements, and lifestyle changes like exercise.
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