- Cerebrospinal fluid and hydrocephalus
- Spine and Intervertebral Disc Pathology
- Glioma Diagnosis and Treatment
- Spinal Fractures and Fixation Techniques
- Pituitary Gland Disorders and Treatments
- Meningioma and schwannoma management
- Head and Neck Surgical Oncology
- Traumatic Brain Injury and Neurovascular Disturbances
- Spinal Dysraphism and Malformations
- Cervical and Thoracic Myelopathy
- Anatomy and Medical Technology
- Surgical Simulation and Training
- Bacterial Infections and Vaccines
- Management of metastatic bone disease
- Medical Imaging and Analysis
- Parkinson's Disease Mechanisms and Treatments
- Neurofibromatosis and Schwannoma Cases
- Automotive and Human Injury Biomechanics
- Adrenal and Paraganglionic Tumors
- Neurosurgical Procedures and Complications
- Electroconvulsive Therapy Studies
- Treatment of Major Depression
- Spinal Hematomas and Complications
- Anesthesia and Pain Management
- Elasticity and Material Modeling
Shahid Beheshti University of Medical Sciences
2014-2024
Cancer Research Center
2021
Roozbeh Hospital
2014
Qazvin University of Medical Sciences
2010-2011
Shahid Beheshti University
2010-2011
The University of Sydney
2011
Tehran University of Medical Sciences
2007
Background: CSF is a clear liquid that its mechanical properties are to large extent similar water properties.Regarding the lack of numerical index for diagnosis diseases resulting from increased pressure such as hydrocephalus, evaluation hydrodynamic conditions in cerebral ventricular system great importance. Methods: At first, diagram velocity Sylvius aqueduct which was obtained through 3D FSI analysis ADINA compared extracted CINE-PC-MRI same test subject. The next step after ensuring two...
Case-control.Evaluate clinical and imaging factors which may predict the risk of failure medical therapy in patients with lumbar disc herniation (LDH).LDH is a common cause low back pain radicular leg pain, generally favorable natural course. At present, however, it not possible to identify who be candidates for surgery an early stage their disease by means signs or diagnostic criteria.We designed study investigating untreated assess predictive value demographic, findings identifying finally...
Blood loss that necessitates blood transfusion is one of the most frequent complications major spinal surgeries. This study has been designed to evaluate efficacy and safety prophylactic tranexamic acid (TA) in decreasing perioperative loss.From January August 2011, all patients who needed surgeries aged between 18 60-year-old were divided into two groups randomly, experimental group received 10 mg/kg TA 20 min after inducing anesthesia as loading dose followed by 0.5 mg/kg/h until skin...
Haemorrhagic complications of arachnoid cysts have been reported as subdural or intracystic hematoma following trauma. In this paper, we report a patient with cyst who developed extradural after subtle head injury and presented very mild symptoms in spite the huge size hematoma.
Intracranial or spinal compressive lesions due to extramedullary hematopoiesis have been reported in the medical literature. Most of cases are extradural or, on rare occasions, foci within another neoplasm such as hemangioblastoma, meningioma pilocytic astrocytoma. Often these occur patients with an underlying hematological disorder acute myelogenic leukemia, myelofibrosis, other myelodysplastic syndromes. Such also thalassemia major. We report case a 43-year-old Iranian woman whom presented...
Lateral meningocele is a very rare disorder. It has been reported in patients with neurofibromatosis or Marfan's syndrome. Previous reports have described lateral meningoceles the thoracic cervical region. sacral area was literature only once.We describe 3.5-year-old Iranian girl who presented gluteal mass. Neuroimaging and intra-operative evaluation showed that mass spinal communication through iliac bone. We also present review of about this entity.Although especially region are disorders,...
Because optimal therapeutic strategies vary with tumor type, a histologic diagnosis by either stereotactic or endoscopic biopsy open surgery is the foundation of management decisions.Stereotactic has advantage ease and minimal invasiveness but associated more sampling errors than ( 19), while resection facilitates maximal removal volume diagnostic accuracy.However, all surgical procedures in pineal region, including both surgery, are potentially hazardous (3,11). █ INTRODUCTIONPineal region...
Introduction: Recent studies on biomechanical properties of brain tissue have focused computer simulation this during impacts, neurosurgical procedures, and improvements in navigational systems for image guided surgery. Several models been proposed to explain the mechanical behavior different conditions (dynamic, static quasi-static), but role ventricles intra-ventricular pressure has not studied so much, especially under loading. It is clear that ability predict displacement midline...
Abstract Background: Subarachnoid hemorrhage (SAH) can lead to elevated intracranial pressure (ICP), which poses significant risks of morbidity and mortality. Monitoring ICP is crucial for the early detection management these complications in patients with aneurysmal SAH (aSAH). Traditional invasive monitoring techniques, while effective, carry associated infection other complications. The Schmidt method, a noninvasive technique, has emerged as potential alternative provide reliable...
Background: Tuberculosis (TB) remains a significant global health concern, with extrapulmonary manifestations, including central nervous system involvement, posing substantial morbidity and mortality. While medical treatment anti-TB drugs is the mainstay of therapy, certain TB-related cerebral complications, such as hydrocephalus, abscesses, large symptomatic tuberculomas, may require surgical intervention. This study aimed to evaluate outcomes management in patients disorders. Methods: A...
Among the high grade cerebral gliomas, Glioblastoma multiform for instance, would be main pattern of local recurrence causes clinical deterioration and deaths. This has observed 2 - 3 cm upon initial lesion. During period 4 weeks post-surgery, remaining tumor cells have re-grown until radiochemotherapy initiated. So it seemed clear that improved control could hopefully translate into survival. As a matter fact, mass reduction insufficiently achieved in almost every case GBM as cell number...
Objectives & Background: Post-laminectomy syndrome specifically refers to pain associated with symptomsnot relieved following laminectomy. This entity is a very disabling and hard manage problem in patientsundergoing spinal procedures. Transcutaneous electrical nerve stimulation has been introduced as non invasivemodality for control. study was aimed determine the effectiveness of TENS management ofpostlaminectomy syndrome. No similar performed our country yet.Materials Methods: In this 35...
Objective: In the treatment of tremor and rigidity in patients with Parkinson’s disease nucleus ventralis intermedius thalamus has been an exquisite target that can be localized easily on ventriculograms. This experimental study is aimed to evaluate effects electrical stimulation vim symptoms signs disease. Methods: Eleven deep drain stimulators were stereotactically implanted 10 who had medically intractable Postoperative evaluations performed using conventional Unified Disease Rating Scale...
Objectives: There are several reports about the therapeutic effects of cervical interbody cages for cervicaldegenerative disorders. Few have addressed role filling material in fusion and improving clinicalsymptoms. This study tries to Novabone as a Solis patients withcervical disc protrusions. The results been compared with from studies that used autografts fillthe cage.Material & Methods: includes treated surgically 2003 2007 discopathywith anterior technique. We cage filled mixed...
Background: Perfect pain management is one of the most essential problems in anesthesia. Intravenous block isconsidered a simple anesthetic method to reduce extremity pain. This study aimed determine effect ofproximal injection compared with distal injections avoid related be vicinity thesurgical field and making use larger proximal veins instead tiny vessels.Methods: In this randomized double blind clinical trial, patients traumatic injuries upper extremitiesreferred Rajaie Hospital from...
Background: Prevertebral soft tissue swelling (PSTS) following anterior cervical surgery, may proceed to airway compromise which is potentially lethal. We plan evaluate the effect of local steroid injection reduce PSTS after discectomy and fusion (ACDF).Methods: In a randomized clinical trial 66 patients who underwent ACDF involving one three segments due radiculopathy or myelopathy were enrolled randomly divided two groups 38 with 80 mg methylprednisolone in operation site, control....