Publications by authors named "Yousefi O"

Objective: Postoperative tracheostomy is a significant complication following medulloblastoma (MB) resection. This study aimed to develop a predictive model for postoperative tracheostomy requirement in children undergoing MB surgical resection. This model was derived as a side product of a larger research project analyzing surgical outcomes in pediatric MB patients.

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Background: Traumatic Brain Injury (TBI) is a leading cause of hospitalization and disability in young and middle-aged adults. This study aims to survey the efficacy of oral modafinil, a low-side-effect central nervous system stimulant, in the enhancement of consciousness recovery in moderate to severe TBI patients in the ICUs of a referral trauma center.

Materials And Methods: All ICU patients meeting inclusion criteria between April 2021 and April 2023 were screened.

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Brain swelling after Traumatic Brain Injury (TBI) can elevate intracranial pressure, necessitating Decompressive Craniectomy (DC) as the preferred surgical intervention. This study aimed to analyze a large institutional database to identify clinical characteristics of patients requiring primary DC and their outcomes. We reviewed TBI patients admitted to our center from 2015 to 2021, utilizing a prospectively maintained registry.

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Article Synopsis
  • - The study investigates the factors affecting the long-term success of endoscopic third ventriculostomy (ETV) in pediatric patients with hydrocephalus, focusing on clinical and radiological data from patients under 18 who underwent the procedure between March 2014 and May 2021.
  • - Key findings reveal that 12.2% of patients experienced ETV failure within 6 months, increasing to 22.4% by 1 year, with critical predictors identified as the maximum diameter of the cortical subarachnoid space (CSAS) and the pulsatility index (PI).
  • - The analysis indicates that a smaller CSAS diameter correlates with a higher chance of failure within 6 months, while a lower
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Purpose: This present study aimed to assess the impact of treadmill running on distal femoral cartilage thickness.

Methods: Professional athletes aged 20 to 40 years with a history of treadmill running (minimum 75 min per week for the past three months or more) and age-, sex-, and body mass index (BMI)-matched healthy controls were recruited. Demographics and clinical features of participants were recorded.

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  • The study evaluates how surgical intervention affects anxiety levels in patients with different types of pituitary adenomas, using a systematic review of 32 studies involving 2,681 patients.
  • Results showed that anxiety scores measured before and after surgery did not exhibit significant differences, implying that surgery may not impact anxiety levels in these patients.
  • The findings highlight the need for more robust research due to the limitations of existing studies and the varying patient characteristics involved.
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  • The study investigates the impact of low fibrinogen levels on the mortality and functional outcomes of traumatic brain injury (TBI) patients at Rajaee Hospital in Iran.
  • A total of 3049 TBI patients were analyzed, revealing that those with fibrinogen levels below 150 mg/dL were younger and had lower Glasgow Coma Scale scores.
  • Findings indicate that low fibrinogen levels are a significant risk factor for in-hospital mortality but do not strongly predict long-term functional outcomes after six months.
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Optogenetics is a versatile and powerful tool for the control and analysis of cellular signaling processes. The activation of cellular receptors by light using optogenetic switches usually requires genetic manipulation of cells. However, this considerably limits the application in primary, nonengineered cells, which is crucial for the study of physiological signaling processes and for controlling cell fate and function for therapeutic purposes.

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Background: Consciousness assessment is crucial for patients with traumatic brain injury. In this study, we developed a novel scoring system combining the Glasgow coma scale (GCS) and the full outline of unresponsiveness (FOUR) and evaluated its association with the intensive care unit (ICU) length of stay, mortality, and functional outcome.

Methods: We retrospectively analyzed the data from patients with traumatic brain injury admitted to the neurosurgical ICU of our institution during a 2-year period.

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Objective: In this meta-analysis, we aimed to investigate the efficacy and safety of endovascular treatment (EVT) for acute ischemic stroke (AIS) patients with large core infarct.

Methods: Three online databases of Web of Science, PubMed and Scopus were systematically searched. Original studies which evaluated AIS participants with large core infarction who underwent EVT were included.

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To present the outcomes and adverse events associated with the endoscopic-assisted, minimally invasive suturectomy in patients with multisuture synostosis. This retrospective cohort study included children < 65 days of age who underwent endoscopic-assisted suturectomy (EAS) for multisuture craniosynostosis at a single tertiary referral center from 2013 to 2021. The primary outcome was calvarial expansion, and the secondary outcome was adverse events.

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Optogenetics offers a set of tools for the precise manipulation of signaling pathways. Here we exploit optogenetics to experimentally change the kinetics of protein-protein interactions on demand. We had developed a system in which the interaction of a modified T cell receptor (TCR) with an engineered ligand can be controlled by light.

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Objective: Spinal ganglioneuromas (GNs) are rare benign tumors that often manifest as symptoms related to the compression of neural elements. The preferred treatment for affected patients is surgical resection, which typically improves symptoms and accompanies a low likelihood of tumor recurrence. We conducted a systematic review of reports of GNs involving the spinal cord and nerve roots, examining their clinical presentation, surgical management, and outcomes.

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Background: Spinal cord stimulation (SCS) has been investigated as a potential therapeutic option for managing refractory symptoms in patients with Parkinson's disease (PD).

Objective: This systematic review and meta-analysis aimed to evaluate the safety and efficacy of SCS in PD.

Method: A comprehensive literature search was conducted on PubMed and Web of Science to identify SCS studies reporting Unified Parkinson Disease Rating Scale-III (UPDRS-III) or Visual Analogue Scale (VAS) score changes in PD cohorts with at least 3 patients and a follow-up period of at least 1 month.

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Objectives: Adjacent segment degeneration (ASDe) and adjacent segment disease (ASDi) are potential long-term complications after lumbar fusion with rigid instrumentation. Dynamic fixation techniques (Topping-off) adjacent to the fused segments have been developed to curtail the risk of ASDe and ASDi. The current study sought to investigate whether the addition of dynamic rod constructs (DRC) in patients with preoperative degeneration in the adjacent disc was effective in reducing the risk of ASDi.

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Purpose: To assess the efficacy and safety of middle meningeal artery (MMA) embolization with liquid embolic agents and the outcomes of patients following this procedure.

Materials And Methods: A review of the literature was conducted to identify studies investigating the efficacy and safety of MMA embolization with liquid embolic agents in patients with chronic subdural hematoma (cSDH) in PubMed, Scopus, Embase, and Web of Science. The keywords "liquid embolic agent," "middle meningeal artery," "cSDH," and "embolization" as well as their synonyms were used to build up the search strategy.

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The kinetics of a ligand-receptor interaction determine the responses of the receptor-expressing cell. One approach to experimentally and reversibly change this kinetics on demand is optogenetics. We have previously developed a system in which the interaction of a modified receptor with an engineered ligand can be controlled by light.

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Background: The aim of this study was to report the demographics and clinical features of patients with penetrating traumatic brain injury (PTBI) during the past 5 years in Rajaee Hospital, a tertiary referral trauma center in Shiraz, southern Iran.

Methods: We conducted a 5-year retrospective evaluation of all patients diagnosed with PTBI who were referred to Rajaee Hospital. We retrieved the following items from the hospital's database and PACS system: patients' demographics, on-admission Glasgow Coma Scale (GCS), presence of trauma to other organs, duration of the hospital and ICU stay, the neurosurgical interventions, any necessity of tracheostomy, duration of ventilator dependency, the entrance point of the trauma in the skull, type of assault, length of trajectory in the brain parenchyma, the number of remaining objects in the brain, the occurrence of any hemorrhagic phenomenon, the cross of the bullet from the midline or coronal suture, and the presence of the pneumocephalus.

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Objective: Recurrent Cushing disease (CD) is characterized by the reappearance of clinical and hormonal aspects of hypercortisolism that occur more than 6 months after an initial post-treatment remission.

Methods: We performed a systematic review and meta-analysis to synthesize the evidence about remission and complication rates after transsphenoidal surgery (TSS) radiotherapy (RT) and medical therapy (MT) in recurrent CD patients. A quantitative systematic review was performed.

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Background: Deep brain stimulation (DBS) is a surgical approach with electrical stimulation of certain parts of the brain, which reduce Parkinson's disease (PD) symptoms. Since the loss of dopaminergic neurons in the substantia nigra is the main pathophysiology of PD, we aimed to evaluate the association of response to DBS with preoperative dopamine transporter density (DAT) and its postoperative changes in PD patients who underwent the bilateral implantation of the electrodes in the subthalamic nucleus (STN).

Method: A prospective evaluation of Parkinson's disease patients who underwent STN-DBS for 2 years was done.

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Objective: To study a Boswellia and ginger mixture on the memory dysfunction of the mild traumatic brain injury (mTBI) patients

Methods: Patients with mTBI were asked about memory impairment following the injury. One hundred mTBI patients were visited and assessed using an auditory-visual learning test (AVLT) questionnaire. By using random permuted blocks, patients were given the Memoral (a mixture of 360 mg of Boswellia and 36 mg of ginger) or placebo and were asked to consume it for a month.

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Article Synopsis
  • Holmes tremor often doesn't respond well to medication, and deep brain stimulation (DBS) of the ventralis intermedius nucleus (VIM) is typically used to manage it, but the posterior subthalamic area (PSA) may be a better alternative.
  • A case of a 57-year-old man with a right-sided tremor post-trauma showed that initial DBS targeting the VIM was ineffective, but targeting the PSA led to successful tremor control after modifying the approach.
  • This case suggests that PSA-DBS could be a promising option for treating Holmes tremor when standard VIM-DBS fails, though more research is needed to confirm these findings over the long term.
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Purpose: Recently, the feature of generating constant current output has been added to the implantable pulse generators (IPGs). The efficacy of the conventionally used constant voltage (CV) stimulation has been proved in different movement and psychiatric disorders. In this systematic review, we aimed to discuss the effect of constant current (CC) and constant voltage stimulation on patients with Parkinson's disease (PD) who had subthalamic nucleus deep brain stimulation implantation; we also compared these methods of stimulation with each other.

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Background: OPG accounts for 3−5% of childhood central nervous system (CNS) tumors and about 2% of pediatric glial lesions. Methods: Article selection was performed by searching PubMed, Web of Science, and Cochrane databases. Results: The pooled mortality rate was 0.

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Objective: In this systematic review and meta-analysis, we investigated the efficacy and safety of middle meningeal artery embolization (MMAE) using particle embolic agents to treat cSDH.

Methods: To retrieve articles investigating outcomes of patients following MMAE with particle agents and to compare their outcome with conventional treatment, Scopus, PubMed, Embase, and Web of Science were searched using relevant keywords. Original articles with more than 10 cases were included.

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