scholarly journals Neuro-anesthetic Management of Craniotomy-surgery in Removal Tumor Multiple Meningioma Patients: A Case Report

2021 ◽  
Vol 9 (C) ◽  
pp. 146-150
Author(s):  
Kulsum Kulsum ◽  
Taufik Suryadi
Keyword(s):  
Case Report ◽  
Brain Tissue ◽  
Anesthetic Management ◽  
Physiological Factors ◽  
Multiple Meningioma ◽  
Unconscious Patients ◽  
Relationship Of ◽  
Surgical Manipulation ◽  
The Brain ◽  
Very High

AIM: The aim of following paper is to present the case anesthesia management of neuro-surgery in removal tumor multiple meningioma patients. METHODS: The method of this study was a case report. It was reported that a patient aged 50 years complained of spasms of full body spasms since 10 minutes before admission to the hospital. Complaints were accompanied by eyes glaring upward, seizure duration 20 minutes, after convulsions of unconscious patients, patients with previous tumor history, 3 years ago, patients with postoperative meningioma tumor removal. Patient diagnosed with multiple meningioma who planned to undergo craniotomy surgery to remove the tumor. MAIN FINDING: ASA 3 physical status with neurologic deficits. The patient is performed under general anesthesia with intubation. Induction performed by fentanyl, propofol and rocuronium. The operation lasted 3 hours. Postoperatively, the patient was admitted to the Intensive Care Unit for 2 days before moving into the room. Anesthetic treatment and regulation of physiological factors have a major impact on brain tissue. The anesthetist must have knowledge of the effects of drugs and other manipulations in order to achieve good surgical results. RESULT: Anesthetic management for meningioma cases has several special matters that are important to carry out. The brain tissue is covered by the cranium bone. Because of the continuous relationship of blood flow and brain tissue volume, the risk of bleeding and edema is very high. Without a proper anesthetic approach, it can increase the risk of edema and cerebral hemorrhage due to surgical manipulation.

Effects of Acupuncture on Tissue-Oxygenation of the Rat Brain

1977 ◽  
Vol 05 (02) ◽  
pp. 147-154 ◽  
Author(s):  
Gregory S. Chen ◽  
Wilhelm Erdmann
Keyword(s):  
Rat Brain ◽  
Brain Tissue ◽  
Tissue Oxygenation ◽  
Perfusion Pressure ◽  
Tissue Perfusion ◽  
Albino Rats ◽  
Capillary Perfusion ◽  
Unconscious Patients ◽  
The Brain ◽  
Inspiratory Oxygen

Acupuncture has been claimed to be effective in restoring consciousness in some comatose patients. Possible mechanisms to explain alleged acupuncture-induced arousal may include vasodilatory effects caused by sympathetic stimulation which leads to an augmentation of cerebral microcirculation and thereby improves oxygen supply to the brain tissue. Experiments were performed in ten albino rats (Wistar) employing PO 2 microelectrodes which were inserted into the cortex of the animals through small burholes. Brain tissue PO 2 was continuously recorded before, during, and after acupuncture. Stimulation of certain acupuncture loci (Go-26) resulted in immediate increase of PO 2 in the frontal cortex of the rat brain. This effect was reproducible. The effect was comparable to that obtained with increase of inspiratory CO 2 known to induce arterial vasodilatation and thus capillary perfusion pressure. The effect was more significant as compared to tissue PO 2 increases obtained after increase of inspiratory oxygen concentration from 21% to 100%. It appears that acupuncture causes an increase of brain tissue perfusion which may be, at least in part, responsible for arousal of unconscious patients. Dilatation of cerebral vascular vessels and improvement of autoregulation in the brain by acupuncture stimulation may also explain the effectiveness of acupuncture in the treatment of migraine headache.

Right frontotemporal craniotomy for ECA-to-MCA direct and indirect bypass and occipital artery indirect bypass to the posterior circulation: case report

2020 ◽  
pp. 1-5
Author(s):  
Mitchell W. Couldwell ◽  
Samuel Cheshier ◽  
Philipp Taussky ◽  
Vance Mortimer ◽  
William T. Couldwell
Keyword(s):  
Case Report ◽  
Pediatric Patients ◽  
Posterior Circulation ◽  
Occipital Artery ◽  
Transient Ischemic Attacks ◽  
Collateral Vessel ◽  
Suboccipital Craniotomy ◽  
Uncommon Disease ◽  
Indirect Revascularization ◽  
The Brain

Moyamoya is an uncommon disease that presents with stenoocclusion of the major vasculature at the base of the brain and associated collateral vessel formation. Many pediatric patients with moyamoya present with transient ischemic attacks or complete occlusions. The authors report the case of a 9-year-old girl who presented with posterior fossa hemorrhage and was treated with an emergency suboccipital craniotomy for evacuation. After emergency surgery, an angiogram was performed, and the patient was diagnosed with moyamoya disease. Six months later, the patient was treated for moyamoya using direct and indirect revascularization; after surgery there was excellent vascularization in both regions of the bypass and no further progression of moyamoya changes. This case illustrates a rare example of intracerebral hemorrhage associated with moyamoya changes in the posterior vascularization in a pediatric patient and subsequent use of direct and indirect revascularization to reduce the risk of future hemorrhage and moyamoya progression.

Polymeric Nanoparticles for Brain Drug Delivery - A Review

2020 ◽  
Vol 21 (9) ◽  
pp. 649-660
Author(s):  
Subashini Raman ◽  
Syed Mahmood ◽  
Ayah R. Hilles ◽  
Md Noushad Javed ◽  
Motia Azmana ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Surface Modification ◽  
Polymeric Nanoparticles ◽  
Drug Loading ◽  
Preparation Methods ◽  
Brain Drug Delivery ◽  
Polymeric Nanoparticle ◽  
Relationship Of ◽  
The Relationship ◽  
The Brain

Background: Blood-brain barrier (BBB) plays a most hindering role in drug delivery to the brain. Recent research comes out with the nanoparticles approach, is continuously working towards improving the delivery to the brain. Currently, polymeric nanoparticle is extensively involved in many therapies for spatial and temporal targeted areas delivery. Methods: We did a non-systematic review, and the literature was searched in Google, Science Direct and PubMed. An overview is provided for the formulation of polymeric nanoparticles using different methods, effect of surface modification on the nanoparticle properties with types of polymeric nanoparticles and preparation methods. An account of different nanomedicine employed with therapeutic agent to cross the BBB alone with biodistribution of the drugs. Results: We found that various types of polymeric nanoparticle systems are available and they prosper in delivering the therapeutic amount of the drug to the targeted area. The effect of physicochemical properties on nanoformulation includes change in their size, shape, elasticity, surface charge and hydrophobicity. Surface modification of polymers or nanocarriers is also vital in the formulation of nanoparticles to enhance targeting efficiency to the brain. Conclusion: More standardized methods for the preparation of nanoparticles and to assess the relationship of surface modification on drug delivery. While the preparation and its output like drug loading, particle size, and charge, permeation is always conflicted, so it requires more attention for the acceptance of nanoparticles for brain delivery.

Liquid Chromatography Analysis of Clozapine in Rat Brain Tissue, Using its Molecularly Imprinted Polymer after Administration of Toxic Dose of Drug and Lipid Emulsion Therapy

2019 ◽  
Vol 15 (3) ◽  
pp. 251-257
Author(s):  
Bahareh Sadat Yousefsani ◽  
Seyed Ahmad Mohajeri ◽  
Mohammad Moshiri ◽  
Hossein Hosseinzadeh
Keyword(s):  
Rat Brain ◽  
Brain Tissue ◽  
Molecularly Imprinted Polymer ◽  
Lipid Emulsion ◽  
Limit Of Detection ◽  
Imprinted Polymer ◽  
Toxic Dose ◽  
Molecularly Imprinted ◽  
The Brain ◽  
Rat Brain Tissue

Background:Molecularly imprinted polymers (MIPs) are synthetic polymers that have a selective site for a given analyte, or a group of structurally related compounds, that make them ideal polymers to be used in separation processes.Objective:An optimized molecularly imprinted polymer was selected and applied for selective extraction and analysis of clozapine in rat brain tissue.Methods:A molecularly imprinted solid-phase extraction (MISPE) method was developed for preconcentration and cleanup of clozapine in rat brain samples before HPLC-UV analysis. The extraction and analytical process was calibrated in the range of 0.025-100 ppm. Clozapine recovery in this MISPE process was calculated between 99.40 and 102.96%. The limit of detection (LOD) and the limit of quantification (LOQ) of the assay were 0.003 and 0.025 ppm, respectively. Intra-day precision values for clozapine concentrations of 0.125 and 0.025 ppm were 5.30 and 3.55%, whereas inter-day precision values of these concentrations were 9.23 and 6.15%, respectively. In this study, the effect of lipid emulsion infusion in reducing the brain concentration of drug was also evaluated.Results:The data indicated that calibrated method was successfully applied for the analysis of clozapine in the real rat brain samples after administration of a toxic dose to animal. Finally, the efficacy of lipid emulsion therapy in reducing the brain tissue concentration of clozapine after toxic administration of drug was determined.Conclusion:The proposed MISPE method could be applied in the extraction and preconcentration before HPLC-UV analysis of clozapine in rat brain tissue.

scholarly journals Immediate rehabilitation with feeding appliance of a three day old neonate with cleft lip and palate- a case report

2017 ◽  
Vol 13 (2) ◽  
pp. 293-295
Author(s):  
Deepika Kapoor ◽  
Deepanshu Garg
Keyword(s):  
Case Report ◽  
Cleft Lip ◽  
Multidisciplinary Approach ◽  
Cleft Lip And Palate ◽  
Facial Growth ◽  
Orofacial Clefts ◽  
High Incidence ◽  
Negative Effect ◽  
Growth Development ◽  
Very High

Orofacial clefts (OFC) are one of the most common congenital problems seen with a very high incidence. It imparts a negative effect on the overall health of the child by hindering in his feeding practices, normal facial growth, development of dentition and hence speech. Infants born with orofacial clefts have oronasal communication which creates a problem with the creation of negative pressure inside the oral cavity required for suckling.The treatment for such patients is with the multidisciplinary approach but the preliminary  concern for the neonate is to help with the feeding for which a feeding appliance is given. This case report presents a case of a 3-day old infant to whom a feeding appliance was given to aid in suckling. 

scholarly journals Safety profile of the transcription factor EB (TFEB)-based gene therapy through intracranial injection in mice

2020 ◽  
Vol 11 (1) ◽  
pp. 241-250
Author(s):  
Zhenyu Li ◽  
Guangqian Ding ◽  
Yudi Wang ◽  
Zelong Zheng ◽  
Jianping Lv
Keyword(s):  
Gene Therapy ◽  
Transcription Factor ◽  
Neurodegenerative Diseases ◽  
Brain Tissue ◽  
Inflammatory Responses ◽  
Tissue Samples ◽  
Protein Levels ◽  
Virus Serotype ◽  
Transcription Factor Eb ◽  
The Brain

AbstractTranscription factor EB (TFEB)-based gene therapy is a promising therapeutic strategy in treating neurodegenerative diseases by promoting autophagy/lysosome-mediated degradation and clearance of misfolded proteins that contribute to the pathogenesis of these diseases. However, recent findings have shown that TFEB has proinflammatory properties, raising the safety concerns about its clinical application. To investigate whether TFEB induces significant inflammatory responses in the brain, male C57BL/6 mice were injected with phosphate-buffered saline (PBS), adeno-associated virus serotype 8 (AAV8) vectors overexpressing mouse TFEB (pAAV8-CMV-mTFEB), or AAV8 vectors expressing green fluorescent proteins (GFPs) in the barrel cortex. The brain tissue samples were collected at 2 months after injection. Western blotting and immunofluorescence staining showed that mTFEB protein levels were significantly increased in the brain tissue samples of mice injected with mTFEB-overexpressing vectors compared with those injected with PBS or GFP-overexpressing vectors. pAAV8-CMV-mTFEB injection resulted in significant elevations in the mRNA and protein levels of lysosomal biogenesis indicators in the brain tissue samples. No significant changes were observed in the expressions of GFAP, Iba1, and proinflammation mediators in the pAAV8-CMV-mTFEB-injected brain compared with those in the control groups. Collectively, our results suggest that AAV8 successfully mediates mTFEB overexpression in the mouse brain without inducing apparent local inflammation, supporting the safety of TFEB-based gene therapy in treating neurodegenerative diseases.

scholarly journals The relationship of morphometric changes of the brain with IL-6 levels, systemic inflammation and immune disturbances in the patients with schizophrenia

2021 ◽  
Vol 190 ◽  
pp. 553-559
Author(s):  
Irina K. Malashenkova ◽  
Vadim L. Ushakov ◽  
Sergey A. Krynskiy ◽  
Daniil P. Ogurtsov ◽  
Nikita A. Khailov ◽  
...  
Keyword(s):  
Systemic Inflammation ◽  
Relationship Of ◽  
The Relationship ◽  
The Brain

scholarly journals Heterotopic ossification in lymph node metastasis after rectal cancer resection: a case report and literature review

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Hideki Nagano ◽  
Tamotsu Togawa ◽  
Takeshi Watanabe ◽  
Kenji Ohnishi ◽  
Toshihisa Kimura ◽  
...  
Keyword(s):  
Rectal Cancer ◽  
Case Report ◽  
Lymph Node ◽  
Heterotopic Ossification ◽  
Tumor Cells ◽  
Digestive Tract ◽  
Histological Examination ◽  
Metastatic Lesion ◽  
Axillary Lymph ◽  
The Brain

Abstract Background Heterotopic ossification (HO) is the formation of osseous tissue outside the skeleton. HO in malignant tumors of the digestive tract is extremely rare, as is ossification in metastatic lesions from HO-negative digestive tract tumors. Regarding the pathogenesis of HO, two theories have been proposed. The first is that the osteoblastic metaplasia of tumor cells (driven by the epithelial-mesenchymal transition, EMT) results in HO, and the second is that factors secreted by cancer cells lead to the metaplasia of stromal pluripotent cells into osteoblasts. However, the osteogenic mechanisms remain unclear. Case presentation An 83-year-old Japanese woman underwent low anterior rectal resection for rectal cancer before presentation at our institution, in June 2018. The final diagnosis was stage IIB rectal adenocarcinoma (T4aN0M0). Histological examination did not reveal HO in the primary tumor. Thirteen months after the operation, a solitary metastatic lesion in the brain 20 mm in size and a solitary metastatic lesion in a right axillary lymph node 20 mm in size were diagnosed. The patient was treated with gamma-knife therapy for the brain metastasis. One month later, she was referred to our institution. She underwent lymph node resection. Histological examination revealed that most portions of the affected lymph node were occupied by metastatic tumor cells and that central necrosis and four small ossified lesions without an osteoblast-like cell rim were present in the peripheral region. Immunohistochemical analysis showed tumor cells positive for BMP-2, osteonectin, osteocalcin, AE1/AE3, TGF-β1, Gli2, Smad2/3, and CDX2 and negative for nestin, CD56, and CK7. Conclusion This is the first English case report of HO in a metachronous metastatic lymph node after the curative resection of HO-negative rectal cancer. Unlike HO lesions in past reports, the HO lesion did not show peripheral osteoblast-like cells, and the immunohistochemical findings indicated that the present case resulted from the EMT.

Sign in / Sign up

Export Citation Format

Share Document