Abstract:
BACKGROUND:Burst suppression in mechanically ventilated intensive care unit (ICU) patients is associated with increased mortality. However, the relative contributions of propofol use and critical illness itself to burst suppression; of burst suppression, propofol, and critical illness to mortality; and whether preventing burst suppression might reduce mortality, have not been quantified. METHODS:The dataset contains 471 adults from seven ICUs, after excluding anoxic encephalopathy due to cardiac arrest or intentional burst suppression for therapeutic reasons. We used multiple prediction and causal inference methods to estimate the effects connecting burst suppression, propofol, critical illness, and in-hospital mortality in an observational retrospective study. We also estimated the effects mediated by burst suppression. Sensitivity analysis was used to assess for unmeasured confounding. RESULTS:The expected outcomes in a "counterfactual" randomized controlled trial (cRCT) that assigned patients to mild versus severe illness are expected to show a difference in burst suppression burden of 39%, 95% CI [8-66]%, and in mortality of 35% [29-41]%. Assigning patients to maximal (100%) burst suppression burden is expected to increase mortality by 12% [7-17]% compared to 0% burden. Burst suppression mediates 10% [2-21]% of the effect of critical illness on mortality. A high cumulative propofol dose (1316 mg/kg) is expected to increase burst suppression burden by 6% [0.8-12]% compared to a low dose (284 mg/kg). Propofol exposure has no significant direct effect on mortality; its effect is entirely mediated through burst suppression. CONCLUSIONS:Our analysis clarifies how important factors contribute to mortality in ICU patients. Burst suppression appears to contribute to mortality but is primarily an effect of critical illness rather than iatrogenic use of propofol.
journal_name
Neurocrit Carejournal_title
Neurocritical careauthors
Hogan J,Sun H,Aboul Nour H,Jing J,Tabaeizadeh M,Shoukat M,Javed F,Kassa S,Edhi MM,Bordbar E,Gallagher J,Junior VM,Ghanta M,Shao YP,Akeju O,Cole AJ,Rosenthal ES,Zafar S,Westover MBdoi
10.1007/s12028-020-00932-4subject
Has Abstractpub_date
2020-10-01 00:00:00pages
565-574issue
2eissn
1541-6933issn
1556-0961pii
10.1007/s12028-020-00932-4journal_volume
33pub_type
杂志文章abstract:BACKGROUND:During late pregnancy and the puerperium cerebral venous and sinus thrombosis (CVST) is a rare but important cause of stroke. Despite adequate anticoagulation some patients deteriorate, which may warrant the use of more aggressive treatment modalities. CASE REPORT:A 29-year-old pregnant woman (29th week of ...
journal_title:Neurocritical care
pub_type: 杂志文章
doi:10.1007/s12028-010-9389-3
更新日期:2011-08-01 00:00:00
abstract:BACKGROUND AND PURPOSE:In patients with subarachnoid hemorrhage (SAH), higher hemoglobin (HGB) has been associated with better outcomes, but packed red blood cell (PRBC) transfusions with worse outcomes. We performed a prospective pilot trial of goal HGB after SAH. METHODS:Forty-four patients with SAH and high risk fo...
journal_title:Neurocritical care
pub_type: 杂志文章,随机对照试验
doi:10.1007/s12028-010-9424-4
更新日期:2010-12-01 00:00:00
abstract:BACKGROUND:Hyponatremia may complicate brain injury and exacerbate cerebral edema and intracranial pressure (ICP). Vasopressin-receptor antagonists (such as conivaptan) are promising novel agents to treat hyponatremia that act by inducing aquaresis. It is unclear whether raising serum sodium in this way could also conf...
journal_title:Neurocritical care
pub_type: 杂志文章
doi:10.1007/s12028-010-9366-x
更新日期:2011-02-01 00:00:00
abstract:INTRODUCTION:Spinal cord ischemia and stroke are recognized complications of descending thoracic (DTA) and thoracoabdominal aortic (TAA) operations. However, there are limited data available on outcomes since the advent of thoracic endovascular aortic repair (TEVAR). METHODS:We reviewed charts from consecutive patient...
journal_title:Neurocritical care
pub_type: 杂志文章
doi:10.1007/s12028-008-9104-9
更新日期:2008-01-01 00:00:00
abstract::Maintenance of adequate oxygenation is a mainstay of intensive care, however, recommendations on the safety, accuracy, and the potential clinical utility of invasive and non-invasive tools to monitor brain and systemic oxygenation in neurocritical care are lacking. A literature search was conducted for English languag...
journal_title:Neurocritical care
pub_type: 杂志文章,评审
doi:10.1007/s12028-014-0024-6
更新日期:2014-12-01 00:00:00
abstract:BACKGROUND:Impaired cerebrovascular reactivity (CR) has been reported to be associated with adverse outcome in patients with aneurysmal subarachnoid hemorrhage (aSAH). However, CR may be determined using different paradigms and it is unclear, which measurement method most suitable reflects the clinical course or is abl...
journal_title:Neurocritical care
pub_type: 杂志文章,评审
doi:10.1007/s12028-009-9287-8
更新日期:2010-04-01 00:00:00
abstract:: ...
journal_title:Neurocritical care
pub_type: 评论,信件
doi:10.1007/s12028-018-0605-x
更新日期:2018-12-01 00:00:00
abstract:BACKGROUND:To investigate the effects of hyperbaric oxygen (HBO) on brain damage and autophagy levels in a rat model of middle cerebral artery occlusion. METHODS:Neurologic injury and infarcted areas were evaluated according to the modified neurological severity score and 2,3,5-triphenyltetrazolium chloride staining. ...
journal_title:Neurocritical care
pub_type: 杂志文章
doi:10.1007/s12028-018-0577-x
更新日期:2019-02-01 00:00:00
abstract:BACKGROUND:There has been growing interest in the use of hypertonic sodium lactate (HSL) solution following traumatic brain injury (TBI) in humans. However, little is known about the effects of HSL on functional deficits with respect to the hyperosmotic nature of HSL. METHODS:We have compared the effects of HSL soluti...
journal_title:Neurocritical care
pub_type: 杂志文章
doi:10.1007/s12028-020-01090-3
更新日期:2020-09-09 00:00:00
abstract:BACKGROUND:Currently, continuous electroencephalographic monitoring (cEEG) is the only available diagnostic tool for continuous monitoring of brain function in intensive care unit (ICU) patients. Yet, the exact relevance of routinely applied ICU cEEG remains unclear, and information on the implementation of cEEG, espec...
journal_title:Neurocritical care
pub_type: 杂志文章
doi:10.1007/s12028-018-0525-9
更新日期:2018-10-01 00:00:00
abstract:INTRODUCTION:Bacterial meningitis is associated with a high mortality and a high incidence of neurological sequelae. Parainfectious vasculitis leading to ischemic brain damage is a known complication of bacterial meningitis but its treatment is uncertain. METHODS AND RESULTS:We report the case of a 53-year-old man wit...
journal_title:Neurocritical care
pub_type: 杂志文章
doi:10.1385/NCC:4:3:237
更新日期:2006-01-01 00:00:00
abstract:INTRODUCTION:Robotic tele-presence (RTP) is a form of mobile telemedicine, which enables a direct face-to-face rapid response by the physician, instead of the traditional telephonic paradigm. We hypothesized that a model of RTP for after-hour ICU rounds and emergencies would be associated with improved ICU nurse satisf...
journal_title:Neurocritical care
pub_type: 杂志文章
doi:10.1007/s12028-012-9712-2
更新日期:2012-08-01 00:00:00
abstract:BACKGROUND:This prospective consecutive double-blinded randomized study investigated the effect of prostacyclin on pressure reactivity (PR) in severe traumatic brain injured patients. Other aims were to describe PR over time and its relation to outcome. METHODS:Blunt head trauma patients, Glasgow coma scale ≤8, age 15...
journal_title:Neurocritical care
pub_type: 杂志文章,随机对照试验
doi:10.1007/s12028-014-0030-8
更新日期:2015-02-01 00:00:00
abstract:BACKGROUND:This study compares the effect of mild and severe cerebral ischemia on neuronal damage and neurogenesis. METHODS:Sixteen Sprague-Dawley rats, anesthetized with 0.8 vol% halothane in O(2)/air, were subjected to forebrain ischemia by bilateral common carotid artery occlusion plus hemorrhagic hypotension (mean...
journal_title:Neurocritical care
pub_type: 杂志文章
doi:10.1007/s12028-008-9121-8
更新日期:2008-01-01 00:00:00
abstract::Amantadine and modafinil are neurostimulants that may improve cognitive and functional recovery post-stroke, but the existing study results vary, and no comprehensive review has been published. This systematic review describes amantadine and modafinil administration practices post-stroke, evaluates timing and impact o...
journal_title:Neurocritical care
pub_type: 杂志文章,评审
doi:10.1007/s12028-020-00977-5
更新日期:2020-08-01 00:00:00
abstract:BACKGROUND:The initial noncontrast computed tomography (CT) study of the head after an aneurysmal subarachnoid hemorrhage (SAH) is used to predict the risk of developing vasospasm. Changes in the extent of subarachnoid blood seen on CT images occur as a function of time after SAH, but there is no consensus on the time ...
journal_title:Neurocritical care
pub_type: 杂志文章
doi:10.1007/s12028-009-9227-7
更新日期:2009-01-01 00:00:00
abstract::This review examines the available data on the use of osmotic agents in patients with head injury and ischemic stroke, summarizes the physiological effects of osmotic agents, and presents the leading hypotheses regarding the mechanism by which they reduce ICP. Finally, it addresses the validity of the following common...
journal_title:Neurocritical care
pub_type: 杂志文章,评审
doi:10.1385/NCC:1:2:219
更新日期:2004-01-01 00:00:00
abstract:BACKGROUND/OBJECTIVE:In recent years, the noble gas argon (Ar) has been extensively studied for its organ protection properties. While mounting in vitro and in vivo evidence indicates that argon provides neuroprotection in ischemic brain injury, its neuroprotective potential in traumatic brain injury (TBI) has not been...
journal_title:Neurocritical care
pub_type: 杂志文章
doi:10.1007/s12028-020-01104-0
更新日期:2020-09-21 00:00:00
abstract:BACKGROUND:The effects of induced hypertension (IH) on cerebral perfusion after subarachnoid hemorrhage (SAH) are unclear. The objectives of this investigation are to: (1) determine whether there are differences in cerebral blood flow (CBF), cerebral blood volume (CBV), and mean transit time (MTT) measured with compute...
journal_title:Neurocritical care
pub_type: 杂志文章
doi:10.1007/s12028-017-0379-6
更新日期:2017-08-01 00:00:00
abstract::Electroencephalography in the setting of hypothermia and anoxia has been studied in humans since the 1950s. Specific patterns after cardiac arrest have been associated with prognosis since the 1960s, with several prognostic rating scales developed in the second half of the twentieth century. In 2002, two pivotal clini...
journal_title:Neurocritical care
pub_type: 杂志文章,评审
doi:10.1007/s12028-014-0018-4
更新日期:2015-02-01 00:00:00
abstract::A growing body of clinical literature emphasizes the impact of cerebral edema in early brain injury following aneurysmal subarachnoid hemorrhage (aSAH). Aneurysm rupture itself initiates global cerebral edema in up to two thirds of cases. Although cerebral edema is not a universal feature of aSAH, it portends a poor c...
journal_title:Neurocritical care
pub_type: 杂志文章,评审
doi:10.1007/s12028-016-0354-7
更新日期:2017-04-01 00:00:00
abstract:BACKGROUND:In several instances, the diagnosis of brain death has been questioned due to the presence of movements. This case report and review of the literature illustrates the spectrum of movements that have been encountered in brain death. METHODS:A case report and review of the literature on movements seen in brai...
journal_title:Neurocritical care
pub_type: 杂志文章
doi:10.1385/NCC:3:2:122
更新日期:2005-01-01 00:00:00
abstract::A common observation in closed head injuries is the contrecoup brain injury. As the in vivo brain is less dense than the cerebrospinal fluid (CSF), one hypothesis explaining this observation is that upon skull impact, the denser CSF moves toward the site of skull impact displacing the brain in the opposite direction, ...
journal_title:Neurocritical care
pub_type: 杂志文章
doi:10.1385/NCC:1:3:385
更新日期:2004-01-01 00:00:00
abstract::In the original article, Figure 5 has incorrect EEG images and the corrected version is shown below. ...
journal_title:Neurocritical care
pub_type: 杂志文章,已发布勘误
doi:10.1007/s12028-020-00981-9
更新日期:2020-08-01 00:00:00
abstract:OBJECTIVES:Prophylactic treatment with antiepileptic drugs is common practice following subarachnoid hemorrhage (SAH) and traumatic brain injury. However, commonly used antiepileptic drugs have multiple drug interactions, require frequent monitoring of serum levels, and are associated with adverse effects that may prom...
journal_title:Neurocritical care
pub_type: 杂志文章
doi:10.1385/NCC:5:1:71
更新日期:2006-01-01 00:00:00
abstract:BACKGROUND:An alternation of sympathetic and vagal nervous activity has been suggested to be one possible mechanism of neurogenic pulmonary edema (NPE) in patients with subarachnoid hemorrhage (SAH). The study aimed to explore if sympathovagal modulation assessed by frequency domains of heart rate variability (HRV) is ...
journal_title:Neurocritical care
pub_type: 杂志文章
doi:10.1007/s12028-015-0237-3
更新日期:2016-08-01 00:00:00
abstract:BACKGROUND:Ischemic stroke and intracranial hemorrhage (ICH) following left ventricular assist device (LVAD) placement are major causes of morbidity. The incidence and mortality associated with these events stratified by device type have not been systematically explored. METHODS:A systematic review of PubMed was condu...
journal_title:Neurocritical care
pub_type: 杂志文章,评审
doi:10.1007/s12028-017-0386-7
更新日期:2017-08-01 00:00:00
abstract:BACKGROUND:Seizures are a common complication after intracerebral hemorrhage (ICH) but there is a substantial lack of information on the long-term incidence in ICH survivors and whether post-ICH seizures affect functional long-term outcome. METHODS:Over a five-year period 464 consecutive patients with spontaneous ICH ...
journal_title:Neurocritical care
pub_type: 杂志文章
doi:10.1007/s12028-014-9968-9
更新日期:2014-10-01 00:00:00
abstract:BACKGROUND:Abusive head trauma (AHT) is a common condition in children. Little is known in this condition regarding the frequency of seizures, the factors associated with increased risk of seizures, or the association of seizures with outcome. We sought to determine frequency and risks for in-hospital seizures after AH...
journal_title:Neurocritical care
pub_type: 杂志文章
doi:10.1007/s12028-010-9468-5
更新日期:2011-08-01 00:00:00
abstract:BACKGROUND:Direct invasive monitoring of brain tissue oxygenation (PbtO(2)) has been routinely utilized to predict cerebral ischemia and to prevent secondary injury in patients with traumatic brain injury (TBI) and vasospasm secondary to subarachnoid hemorrhage (SAH). The safety and utility of these devices in the pedi...
journal_title:Neurocritical care
pub_type: 杂志文章
doi:10.1007/s12028-011-9531-x
更新日期:2011-12-01 00:00:00