Cerebral Perfusion Pressure
Mostrando 1-12 de 48 artigos, teses e dissertações.
-
1. Investigation of the Relationship between Cerebral Near-Infrared Spectroscopy Measurements and Cerebrovascular Event in Coronary Artery Bypass Grafting Operation in Patients without Carotid Stenosis and Patients with Carotid Stenosis below Surgical Margins
Abstract Objectives: Stroke is an important cause of mortality and morbidity in surgery. In the present study, we examined the cerebral oximetry values of patients with carotid artery stenosis who did not present surgical indications and those who did not present carotid artery stenosis in coronary artery bypass grafting (CABG) surgery by comparing their ce
Braz. J. Cardiovasc. Surg.. Publicado em: 2020-08
-
2. Coinfection of SARS-CoV-2 and Measles morbillivirus in a front-line health worker in Rio de Janeiro, Brasil
Abstract Objectives: Stroke is an important cause of mortality and morbidity in surgery. In the present study, we examined the cerebral oximetry values of patients with carotid artery stenosis who did not present surgical indications and those who did not present carotid artery stenosis in coronary artery bypass grafting (CABG) surgery by comparing their ce
Rev. Assoc. Med. Bras.. Publicado em: 2020-08
-
3. RepercussÃo da pressÃo positiva expiratÃria final na pressÃo de perfusÃo cerebral em pacientes adultos com acidente vascular cerebral hemorrÃgico na fase aguda
Intrathoracic positive pressure may lead to a change hemodynamics, with repercussions for the intracranial compartment, thereby altering intracranial pressure (ICP) and cerebral perfusion pressure (CPP). This effect may become more intense when using high positive end expiratory pressure (PEEP) values. The aim of the present study was to measure the impact o
Publicado em: 2009
-
4. A influencia da lidocaina nos valores da pressão de perfusão cerebral apos manobra de aspiração endotraqueal no traumatismo craniencefalico grave / The influence of lidocaine on the values of cerebral perfusion pressure after endotracheal suctioning in severe traumatic brain injury
Background: In the acute phase of severe traumatic brain injury (TBI), it is crucial to avoid a decrease in cerebral perfusion pressure (CPP). Procedures such as endotracheal suctioning (ES) may increase ICP, and decrease CPP. Lidocaine, given topically (endotracheally) or intravenously, has been used to reduce these effects. Methods: Twenty patients admitte
Publicado em: 2008
-
5. Volume replacement with lactated ringers or 3% hypertonic saline solution during combined experimental hemorrhagic shock and traumatic brain injury / Estudo da reposição volêmica inicial em modelo experimental de choque hemorrágico associado ao traumatismo craniencefálico: comparação entre as soluções de ringer lactado e salina hipertônica 3%
The devastating effects of hypotension on head-trauma-related mortality are well known. This study evaluates the systemic and cerebral hemodynamic responses to volume replacement with 3% hypertonic saline (HSS) or lactated Ringers solution (LR), during the acute phase of hemorrhagic shock (HS) associated with traumatic brain injury (TBI). METHODS: Fifteen mo
Publicado em: 2007
-
6. Efeitos da hemodiluição normovolêmica aguda com Ringer lactato e hidroxietilamido na hipertensão intracraniana: estudo em cães com lesão criogênica do cérebro / Effects of acute normovolemic hemodilution with lactated Ringers solution and hydroxyethylstarch in intracranial hypertension: study in dogs with cryogenic brain injury
Objective: Brain injury is responsible for significant morbidity and mortality in trauma patients, but controversy still exists over optimal fluid management for these patients. This study aimed to investigate the effects of acute hemodilution with hydroxyethyl starch (HES) or lactated Ringers solution (LR) in intracranial pressure(ICP) and cerebral perfusio
Publicado em: 2007
-
7. Efeitos de soluÃÃo salina hipertÃnica e manitol em coelhos com hipertensÃo intracraniana aguda
Medical management of brain edema and elevated intracranial pressure (ICP) is a crucial challenge in neurosurgical practice. The control of ICP and cerebral perfusion pressure (CPP) is determinant of patient outcomes whatever the involved physiopathological mecanisms. Depending on the cause, the treatments for brain edema fall into three categories: stabiliz
Publicado em: 2006
-
8. Influencia da fisioterapia respiratoria na pressão de perfusão cerebral do paciente com traumatismo cranioencefalico grave
Respiratory physiotherapy maneuvers change the intrathoracic pressure and can also affect the cerebral venous blood flow and intracranial pressure (ICP). The aim of this was to evaluate respiratory physiotherapy influence over cerebral perfusion pressure (CPP) in patients with severe head trauma (HT). Thirty five patients with severe HT (Glasgow coma scale :
Publicado em: 2001
-
9. Hemometabolismo cerebral : variações na fase aguda do coma traumatico
Twenty-seven adult patients with severe acute brain trauma, presenting with 3 to 8 points on the Glasgow Coma Scale, were prospectively evaluated according to a cumulative protocol for the management of acute intracranial hypertension, where intracranial pressure (ICP) and cerebral extraction of oxigen (CEOz) were measured and managed as follows: ICP <20mmHg
Publicado em: 1996
-
10. Raised intracranial pressure and cerebral blood flow: 2. Supratentorial and infratentorial mass lesions in primates
Changes in cerebral blood flow with increasing intracranial pressure were studied in anaesthetized baboons during expansion of a subdural balloon in one of two different sites. With an infratentorial balloon, cerebral blood flow bore no clear relation to intracranial pressure, but was linearly related to cerebral perfusion pressure. Apart from an initial cha
-
11. Continuous monitoring of cortical perfusion by laser Doppler flowmetry in ventilated patients with head injury.
A method for monitoring cortical perfusion by laser Doppler flowmetry (LDF) in the neurointensive care unit is described. Out of 22 patients with head injuries, reliable and long term recordings were obtained in 16. Laser Doppler flowmetry registered changes in cortical microcirculatory flow in response to spontaneous waves of raised intracranial pressure, a
-
12. Raised intracranial pressure and cerebral blood flow. 5. Effects of episodic intracranial pressure waves in primates.
The effects of episodic waves of intracranial pressure on cerebral blood flow were studied in primates. Six pressure waves each of 20 minutes' duration and ranging from 50 to 100 mmHg in magnitude were induced in baboons, at intervals of 30 minutes, in an attempt to simulate clinical plateau waves. With pressure waves up to 75 mmHg, cerebral blood flow remai