0000000000462802

AUTHOR

Sven O. Eicker

showing 3 related works from this author

Local Delivery of Nimodipine by Prolonged-Release Microparticles—Feasibility, Effectiveness and Dose-Finding in Experimental Subarachnoid Hemorrhage

2012

Background and purposeTo investigate the effect of locally applied nimodipine prolonged-release microparticles on angiographic vasospasm and secondary brain injury after experimental subarachnoid hemorrhage (SAH).Methods70 male Wistar rats were categorized into three groups: 1) sham operated animals (control), 2) animals with SAH only (control) and the 3) treatment group. SAH was induced using the double hemorrhage model. The treatment group received different concentrations (20%, 30% or 40%) of nimodipine microparticles. Angiographic vasospasm was assessed 5 days later using digital subtraction angiography (DSA). Histological analysis of frozen sections was performed using H&E-staining as …

MaleVasodilator AgentsGene ExpressionPolylactic Acid-Polyglycolic Acid CopolymerVasospasm IntracranialDrug DistributionMultidisciplinarymedicine.diagnostic_testMicrofilament ProteinsQRBrainIntracranial ArteryVasospasmAnimal ModelsImmunohistochemistryHemorrhagic StrokeNeurologyAnesthesiaInjections IntravenousToxicityMedicinemedicine.symptomMicrotubule-Associated ProteinsResearch Articlemedicine.drugDrugs and DevicesDrug Research and DevelopmentSubarachnoid hemorrhageCerebrovascular DiseasesScienceNeurosurgeryBrain damageDrug Administration ScheduleModel OrganismsmedicineAnimalsPharmacokineticsLactic Acidcardiovascular diseasesRats WistarBiologyNimodipineDose-Response Relationship Drugbusiness.industryCalcium-Binding ProteinsAngiography Digital SubtractionDigital subtraction angiographySubarachnoid Hemorrhagemedicine.diseaseRatsnervous system diseasesDelayed-Action PreparationsAngiographyRatNimodipineSurgerybusinessPolyglycolic AcidPLoS ONE
researchProduct

DOSE-RELATED EFFICACY OF A CONTINUOUS INTRACISTERNAL NIMODIPINE TREATMENT ON CEREBRAL VASOSPASM IN THE RAT DOUBLE SUBARACHNOID HEMORRHAGE MODEL

2009

Objective Intracisternal continuous therapy is a concept in the treatment of cerebral vasospasm after subarachnoid hemorrhage. The purpose of the current study was to investigate the effect of intracisternal nimodipine after induced vasospasm. Methods Sixty-five male Wistar rats were randomized into 4 groups: the control sham-operated group, the control subarachnoid hemorrhage-only group, and the treatment groups receiving 5 or 10 microL/hour of intracisternal nimodipine continuously for 5 days via subcutaneously implanted Alzet osmotic pumps (Durect Corp., Cupertino, CA). Vasospasm was analyzed 5 days later by means of digital subtraction angiography. Morphological examination of the brain…

MaleSubarachnoid hemorrhageRandom AllocationCerebral vasospasmmedicineAnimalsVasospasm IntracranialRats WistarNimodipineAntihypertensive AgentsDose-Response Relationship Drugmedicine.diagnostic_testbusiness.industryVasospasmIntracranial ArteryDigital subtraction angiographySubarachnoid Hemorrhagemedicine.diseaseCerebral AngiographyRatsDose–response relationshipAnesthesiaNimodipineSurgeryNeurology (clinical)medicine.symptomDrug ContaminationbusinessVasoconstrictionmedicine.drugNeurosurgery
researchProduct

Spinal ependymoma in adults: a multicenter investigation of surgical outcome and progression-free survival

2018

OBJECTIVESpinal ependymomas are rare glial neoplasms. Because their incidence is low, only a few larger studies have investigated this condition. There are no clear data concerning prognosis and therapy. The aim of the study was to describe the natural history, perioperative clinical course, and local tumor control of adult patients with spinal ependymomas who were surgically treated under modern treatment standards.METHODSThe authors performed a multicenter retrospective study. They identified 158 adult patients with spinal ependymomas who had received surgical treatment between January 2006 and June 2013. The authors analyzed the clinical and histological aspects of these cases to identif…

AdultMaleEpendymomaMicrosurgerymedicine.medical_specialtyAdolescentSpinal intradural tumormedicine.medical_treatmentYoung Adult03 medical and health sciences0302 clinical medicineRecurrenceNeoplasmsBiomarkers TumormedicineHumansSpinal Cord NeoplasmsProgression-free survivalGrading (tumors)AgedRetrospective StudiesAged 80 and overSpinal cordbusiness.industryIncidence (epidemiology)Retrospective cohort studyGeneral MedicinePerioperativeMiddle AgedPrognosismedicine.diseaseProgression-Free Survivalddc:616.8SurgeryRadiation therapyKi-67 AntigenLocalOncologyEpendymomaTumor progression030220 oncology & carcinogenesisFemaleRadiotherapy AdjuvantNeoplasm Recurrence Localbusiness030217 neurology & neurosurgeryFollow-Up StudiesJournal of Neurosurgery: Spine
researchProduct