Search results for "Elastance"

showing 3 items of 3 documents

The course of intracranial pressure and volume-pressure relationships following extirpation of meningiomas and astrocytomas

1978

Thirty-five patients with meningiomas were compared with 37 patients with astrocytomas with respect to the postoperative course of their ICP and elastance. In the case of the meningioma patients, the ICP increased on average over a longer period and achieved higher values than in the astrocytoma patients. In the first group, the elastance attained values that were three times as high as in the second group. There was no fixed relationship between pressure and elastance in the two groups of patients.

Malemedicine.medical_specialtyIntracranial PressureBrain Neoplasmsbusiness.industryAstrocytomaAstrocytomamedicine.diseaseElastancenervous system diseasesSurgeryMeningiomamedicineHumansFemaleSurgeryPostoperative PeriodNeurology (clinical)RadiologyNeurosurgeryMeningiomabusinessneoplasmsNeuroradiologyIntracranial pressureActa Neurochirurgica
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Ventricular-vascular coupling in hypertension: methodological considerations and clinical implications.

2014

The present review is addressed to analyse the complex interplay between left ventricle and arterial tree in hypertension. The different methodological approaches to the analysis of ventricular vascular coupling in the time and frequency domain are discussed. Moreover, the role of hypertension-related changes of arterial structure and function (stiffness and wave reflection) on arterial load and how ventricular-vascular coupling modulates the process of left ventricular adaptation to hypertension are analysed.The different interplay between vascular bed and left ventricle emerges as the pathophysiological basis for the development of the multiple patterns of ventricular structural adaptatio…

Ventricular-vascular couplingmedicine.medical_specialtyWave reflectionHeart VentriclesLeftDiastoleBlood PressureLeft ventricular hypertrophyPulse wave analysisVentricular Function LeftInput impedanceVascular StiffnessEffective arterial elastanceInternal medicinemedicineVentricular FunctionHumansArterial stiffness; Effective arterial elastance; Hypertension; Input impedance; Left ventricular hypertrophy; Pulse wave analysis; Therapy; Ventricular-vascular coupling; Wave reflection; Aorta; Arteries; Blood Pressure; Elasticity; Heart Ventricles; Humans; Hypertension; Vascular Stiffness; Ventricular Function Left; Cardiology and Cardiovascular Medicine; Medicine (all)AortaArterial structureVentricular functionbusiness.industryMedicine (all)Left ventricular hypertrophyarterial stiffness effective arterial elastance hypertension input impedance left ventricular hypertrophy pulse wave analysis therapy ventricular–vascular coupling wave reflectionGeneral MedicineArteriesmedicine.diseaseArterial stiffnessSettore MED/11 - Malattie Dell'Apparato CardiovascolareArterial treeElasticitymedicine.anatomical_structureVentricleHypertensionCardiologyTherapybusinessCardiology and Cardiovascular MedicineVentricular vascular couplingJournal of cardiovascular medicine (Hagerstown, Md.)
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Consideraciones preoperatorias y manejo neuroanestesiológico intraoperatorio

2012

The anesthesiological management of patients undergoing neurosurgery of the posterior fossa has a series of characteristics that should be known by anesthesiologists. Intraoperative management is guided by a series of factors that include the physiopathological changes secondary to the patient's position during surgery, the importance of appropriate patient positioning to facilitate the surgical approach, the lower tolerance to changes in the elastance of the infratentorial region, the limited therapeutic options in episodes of intraoperative edema-swelling, and the presence of complications such as a venous air embolism. This first contribution to the guidelines discusses the main evidence…

medicine.medical_specialtySurgical approachInfratentorial regionbusiness.industryPosterior fossaPatient positioningVenous air embolismCritical Care and Intensive Care MedicineElastanceSurgeryAnesthesiology and Pain MedicineIntraoperative managementmedicineNeurosurgerybusinessRevista Española de Anestesiología y Reanimación
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