Search results for " Cerebrovascular Circulation"

showing 3 items of 3 documents

Reply: vascular anatomy of the supraclavicular area revisited

2009

Reply to Letter to Editor

Aged Cadaver Carcinoma Basal Cell/surgery* Carcinoma Squamous Cell/surgery Cerebrovascular Circulation Face/surgery Feasibility Studies Female Gingival Neoplasms/surgery Humans Jugular Veins/anatomy & histology Male Middle Aged Neck/anatomy & histology Neck/blood supply* Reconstructive Surgical Procedures/methods* Skin Neoplasms/surgery* Surgical Flaps/blood supply*Supraclavicular arterySettore MED/19 - Chirurgia Plasticaperforator flaptransverse cervical arterysupraclavicular flap
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Cerebral haemodynamic changes during propofol-remifentanil or sevoflurane anaesthesia: transcranial Doppler study under bispectral index monitoring

2006

Background. Sevoflurane or propofol–remifentanil-based anaesthetic regimens represent modern techniques for neurosurgical anaesthesia. Nevertheless, there are potential differences related to their activity on the cerebrovascular system. The magnitude of such difference is not completely known. Methods. In total 40 patients, treated for spinal or maxillo-facial disorders, were randomly allocated to either i.v. propofol–remifentanil or inhalational sevoflurane anaesthesia. Transcranial Doppler was used to assess changes in cerebral blood flow velocity, carbon dioxide reactivity, cerebral autoregulation and the bispectral index to assess the depth of anaesthesia. Results. Time-averaged mean f…

MaleUltrasonography Doppler TranscranialHemodynamicsBlood PressurePiperidinesHeart RateMedicineHomeostasisProspective StudiesPropofolUltrasonographyIntraoperativeAdult Anesthetics; Combined; pharmacology Anesthetics; Inhalation; Intravenous; pharmacology Blood Flow Velocity; drug effects Blood Pressure; drug effects Carbon Dioxide; physiology Cerebrovascular Circulation; drug effects Electroencephalography Female Heart Rate; drug effects Homeostasis; drug effects Humans Male Methyl Ethers; pharmacology Middle Aged Monitoring; Intraoperative; methods Piperidines; pharmacology Propofol; pharmacology Prospective Studies Ultrasonography; Doppler; TranscranialCombineddrug effectDopplerElectroencephalographyMiddle AgedAnesthetics CombinedCerebral blood flowInhalationBispectral indexAnesthesiaCerebrovascular CirculationAnesthetics InhalationmethodFemaleIntravenousPropofolAnesthetics IntravenousBlood Flow Velocitymedicine.drugHumanMethyl EthersAdultMonitoringRemifentanilIntravenouTranscranialCerebral autoregulationtranscranial DopplerSevofluranemethodsRemifentanilSevofluranePiperidineMonitoring IntraoperativeHomeostasiHumansAnestheticsbusiness.industryAnestheticCarbon DioxideTranscranial DopplerProspective StudieAnesthesiology and Pain MedicineMethyl Etherdrug effectsphysiologypharmacologybusiness
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Perfusion computed tomography of intracranial meningiomas: In vivo correlation of cerebral blood volume and vascular permeability

2015

Background A noninvasive method to predict the grade of a meningioma would be desirable since it would anticipate information about tumour nature, recurrence and improve tumour management and outcomes. The aim of the present study was to assess the ability of perfusion computed tomography (PCT) technique in predicting the meningioma grade before surgery. Data from PCT, such as cerebral blood volume (CBV) and permeability surface (PS), were correlated with immunohistolopathological information. Methods Twenty-three patients with a diagnosis of intracranial meningioma underwent PCT for pre-surgical evaluation of CBV and PS. During surgery, samples from the centre and periphery of the tumour w…

Malemedicine.medical_specialtyRadiology Nuclear Medicine and ImagingneoangiogenesisNeoplastic DiseasePerfusion ImagingVascular permeabilityBlood volumePerfusion scanningCD-34; Meningioma; endoglin; neoangiogenesis; perfusion computed tomography; permeability surface-area product; Aged; Blood Volume; Capillary Permeability; Cerebrovascular Circulation; Cohort Studies; Female; Humans; Male; Meningeal Neoplasms; Meningioma; Middle Aged; Neoplasm Grading; Perfusion Imaging; Prospective Studies; Tomography X-Ray ComputedMeningiomaCapillary PermeabilityCohort StudiesmedicineMeningeal NeoplasmsHumansCD-34Prospective StudiesProspective cohort studyMeningeal NeoplasmTomographyAgedendoglinpermeability surface-area productBlood Volumebusiness.industrySettore MED/27 - NeurochirurgiaMedicine (all)General MedicineEndoglinMiddle Agedmedicine.diseaseNeoangiogenesiPeripheralX-Ray ComputedProspective StudieCerebrovascular CirculationCD-34; Endoglin; Meningioma; Neoangiogenesis; Perfusion computed tomography; Permeability surface-area product; Aged; Blood Volume; Capillary Permeability; Cerebrovascular Circulation; Cohort Studies; Female; Humans; Male; Meningeal Neoplasms; Meningioma; Middle Aged; Neoplasm Grading; Perfusion Imaging; Prospective Studies; Tomography X-Ray Computed; Neurology (clinical); Radiology Nuclear Medicine and Imaging; Medicine (all)perfusion computed tomographyFemaleRadiologyNeurology (clinical)Cohort StudieNeoplasm GradingbusinessTomography X-Ray ComputedMeningiomaPerfusionHuman
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