Abstract:
OBJECTIVE:Artefact detection is an essential feature of automatic EEG monitoring systems used in anaesthesia. Clinical experience indicates that Narcotrend monitoring (MonitorTechnik, Bad Bramstedt, Germany, version 4.0) excludes more EEG epochs because of artefacts than bispectral index monitoring (BIS, Aspect Medical Systems, Newton, MA, version XP). Whether this increased exclusion of epochs is justified has not been investigated yet. METHODS:Eighteen adult patients undergoing radical prostatectomy were investigated. Induction of anaesthesia was performed with a fentanyl bolus and a propofol infusion. Additionally, following intubation patients received 15 ml bupivacaine 0.5% epidurally. After a waiting period of 45 min depth of anaesthesia was varied two times by increasing and decreasing propofol concentrations. Narcotrend index, BIS values and calculated propofol effect site concentrations were automatically recorded at intervals of 5 s. We tested the hypothesis whether exclusion of artefacts detected by the Narcotrend monitor would possibly improve the prediction probability of the BIS monitor, justifying the necessity of artefact suppression. RESULTS:Simulated propofol effect site concentrations ranged from 2 microg/ml to 6 microg/ml. The Narcotrend monitor excluded a significantly higher percentage of epochs because of artefact detection (12.6 + 1.0%) than the BIS monitor (0.4 +/- 0.1%). The performance of BIS as an indicator of predicted propofol effect site concentrations did not differ when including (P(K) = 0.86 +/- 0.05) or excluding (P(K) = 0.85 +/- 0.04) the data pairs where Narcotrend monitor but not BIS monitor indicated an artefact. Artefacts were evenly distributed over the investigated range ofpropofol effect site concentrations. CONCLUSION:Exclusion of data pairs that were detected as artefacts by Narcotrend but not by BIS did not change the performance of bispectral index as an indicator of propofol effect site concentration.
journal_name
J Clin Monit Computjournal_title
Journal of clinical monitoring and computingauthors
Ellerkmann RK,Kreuer S,Wilhelm W,Wenningmann I,Roepcke H,Hoeft A,Bruhn Jdoi
10.1007/s10877-005-2700-8subject
Has Abstractpub_date
2004-08-01 00:00:00pages
283-7issue
4eissn
1387-1307issn
1573-2614journal_volume
18pub_type
临床试验,杂志文章abstract:OBJECTIVE:To determine whether a simple transcanial Doppler waveform variable-pulsatility difference (systolic - diastolic blood flow velocity) can serve as a measure of critical changes in cerebral perfusion. METHODS:Thirteen pigs were anesthetized (anesthesia maintained with halothane) and ventilated to maintain nor...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1023/a:1009993232534
更新日期:1999-05-01 00:00:00
abstract:OBJECTIVE:To further elucidate temperature related changes in subcortical components of somatosensory evoked potentials (SEP) in intraoperative monitoring. METHODS:Intraoperative monitoring of subcortical median nerve SEP under deep hypothermia is described in a patient undergoing intracranial giant aneurysm surgery. ...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1023/a:1020792729242
更新日期:2002-04-01 00:00:00
abstract::The recently developed technique for measuring cutaneous mitochondrial oxygen tension (mitoPO2) by means of the Protoporphyrin IX-Triplet State Lifetime Technique (PpIX-TSLT) provides new opportunities for assessing mitochondrial function in vivo. The aims of this work were to study whether cutaneous mitochondrial mea...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-014-9628-9
更新日期:2015-08-01 00:00:00
abstract::Transesophageal echocardiography of the spine has been difficult to perform, and high-quality images have been difficult to obtain with earlier available technology. New capabilities in hardware and software reconstruction may allow more reliable clinical data to be obtained. We describe an initial successful attempt ...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-014-9576-4
更新日期:2015-02-01 00:00:00
abstract::Arterial stiffness is a reliable prognostic parameter for cardiovascular diseases. The effect of change in arterial stiffness can be measured by the change of the pulse wave velocity (PWV). The Complior system is widely used to measure PWV between the carotid and radial arteries by means of piezoelectric clips placed ...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-018-0165-9
更新日期:2019-04-01 00:00:00
abstract:OBJECTIVE:We tested whether a newly installed neuromuscular monitoring device (NMT) with a computerized anesthesia recording system, incorporated in all anesthesia stations, could enhance the commitment to objective neuromuscular monitoring in a teaching hospital anesthesia department. METHODS:After 6 months of famili...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-008-9135-y
更新日期:2008-08-01 00:00:00
abstract:OBJECTIVE:Bispectral analysis of the electroencephalogram (EEG) has been used to monitor depth of anesthesia. In the majority of publications this has been done using the so called Bispectral (BIS) Index. The exact relation of this index to bispectral quantities like the bispectrum and its normalized version the bicohe...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1023/a:1026284321451
更新日期:2002-12-01 00:00:00
abstract::To compare the newborn infant parasympathetic evaluation system (NIPE) scores with a validated clinical scale using two different nebulizers in children with bronchiolitis admitted to a PICU. Comfort was evaluated using the COMFORT-behavior scale (CBS) before (T1), during (T2) and after (T3) each nebulization. In orde...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章,随机对照试验
doi:10.1007/s10877-019-00268-1
更新日期:2019-10-01 00:00:00
abstract::Heart failure is the main cause of poor outcome following open heart surgery and experimental studies have demonstrated that glucose-insulin-potassium (GIK) infusion exerts cardioprotective effects by reducing myocardial ischemia-reperfusion injuries. This randomized controlled trial was designed to assess the effects...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-019-00280-5
更新日期:2020-02-01 00:00:00
abstract::Central venous cannulation is a commonly preformed procedure in many branches of medicine, particularly in anaesthesia and intensive care medicine. The purpose of this study was to compare the landmark-guided technique to the ultrasound-guided technique for internal jugular vein cannulation in cardiovascular surgery p...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章,随机对照试验
doi:10.1007/s10877-014-9585-3
更新日期:2015-02-01 00:00:00
abstract::Mathematical models can be deployed to simulate physiological processes of the human organism. Exploiting these simulations, reactions of a patient to changes in the therapy regime can be predicted. Based on these predictions, medical decision support systems (MDSS) can help in optimizing medical therapy. An MDSS desi...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-013-9502-1
更新日期:2014-12-01 00:00:00
abstract::The American Society of Anesthesiologist recommends peripheral physiological monitoring during general anesthesia, which offers no information regarding the effects of anesthetics on the brain. Since no "gold standard" method exists for this evaluation, such a technique is needed to ensure patient comfort, procedure q...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-017-9998-x
更新日期:2018-02-01 00:00:00
abstract::Microvascular function may be modulated by various anesthetics. Desflurane and propofol anesthesia have different effects on microvascular function. However, there are few reports on the effects of sevoflurane and desflurane on microvascular function during cardiac surgery. We compared the effects of sevoflurane and d...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-020-00587-8
更新日期:2020-09-11 00:00:00
abstract:OBJECTIVES:This study was conducted to determine the response time of the Opti-Q continuous cardiac output (CCO) device to a step change in cardiac. DESIGN:Prospective study. SETTING:University hospital animal lab. MODEL:Female sheep. INTERVENTIONS:In ten animals, cardiac output was altered suddenly by opening and ...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1023/a:1009934112134
更新日期:1999-12-01 00:00:00
abstract::Cigarette smoking is often associated with the development of several respiratory diseases however, if diagnosed early, the changes in the lung tissue caused by smoking may be reversible. Computerised respiratory sounds have shown to be sensitive to detect changes within the lung tissue before any other measure, howev...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-016-9887-8
更新日期:2017-06-01 00:00:00
abstract::Arterial blood gas (ABG) analysis is an essential tool in the clinical assessment of acutely ill patients. Venous to arterial conversion (v-TAC), a mathematical method, has been developed recently to convert peripheral venous blood gas (VBG) values to arterialized VBG (aVBG) values. The aim of this study was to test t...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-018-0197-1
更新日期:2019-08-01 00:00:00
abstract::Ultrasound scanning of bladder volume is used for prevention of postoperative urinary retention (POUR). Accurate assessment of bladder volume is needed to allow clinical decision-making regarding the need for postoperative catheterization. Two commonly used ultrasound devices, the BladderScan® BVI 9400 and the newly r...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-018-0123-6
更新日期:2018-12-01 00:00:00
abstract::Supra-sternal Doppler (USCOM Ltd., Sydney, Australia) can be used during anaesthesia to measure cardiac output (CO) and related flow parameters. However, before the USCOM can be used routinely, its utility and limitations need to be fully understood and critical information about its use disseminated. In "Window to th...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-013-9499-5
更新日期:2014-02-01 00:00:00
abstract::Audible pulse tones, based on a variable-pitch frequency scale, allow the anesthesiologist to determine the patient's oxygen saturation without constant visual examination of the monitor display. The ability to reliably detect oxygen saturation levels based on audible pulse tones may be compromised when multiple pulse...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1023/b:jocm.0000032698.47717.06
更新日期:2004-04-01 00:00:00
abstract::The eye lens is one of the most sensitive organs for radiation injury and exposure might lead to radiation induced cataract. Eye lens dosimetry in anesthesiology has been published in few clinical trials and an active debate about the causality of radiation induced cataract is still ongoing. Recently, the Internationa...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-016-9857-1
更新日期:2017-04-01 00:00:00
abstract::The goal of this study was to evaluate the risk factors associated with positioning-related SSEP changes (PRSC). The study investigated the association between 18 plausible risk factors and the occurrence of intraoperative PRSC. Risk factors investigated included demographic variables, comorbidities, and procedure rel...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-018-0148-x
更新日期:2019-04-01 00:00:00
abstract::Perioperative goal-directed therapy is considered to improve patient outcomes after high-risk surgery. The association of compliance with perioperative goal-directed therapy protocols and postoperative outcomes is unclear. The purpose of this study is to determine the effect of protocol compliance on postoperative out...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-020-00585-w
更新日期:2020-09-12 00:00:00
abstract:OBJECTIVE:To present a decision support system for optimising mechanical ventilation in patients residing in the intensive care unit. METHODS:Mathematical models of oxygen transport, carbon dioxide transport and lung mechanics are combined with penalty functions describing clinical preference toward the goals and side...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-006-9049-5
更新日期:2006-12-01 00:00:00
abstract::Alarms in the operating room remain a major source of annoyance and confusion. Nearly all alarms result from a transgression of certain alarm limits. We surveyed manufacturers at a major meeting of anesthesiologists for their default alarm limits. We also conducted a mail survey of anesthesiologists in the United Stat...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1023/a:1009992830942
更新日期:1999-02-01 00:00:00
abstract:OBJECTIVES:Optimizing cerebral oxygenation is of paramount importance in certain intraoperative situations. There is, however, a paucity of published data pertaining to changes in cerebral oxygenation seen with increases in the inspired fraction of oxygen (FIO2) or end-tidal carbon dioxide (PETCO2) in anesthetized pati...
journal_title:Journal of clinical monitoring and computing
pub_type: 临床试验,杂志文章
doi:10.1007/s10877-010-9265-x
更新日期:2010-12-01 00:00:00
abstract::The aim was, to identify an estimate of left ventricular contractility derived from the aortic pressure wave without load changing manoeuvres. For this purpose, left ventricular contractility was assessed with several aortic pressure wave form derived parameters and was compared to standard parameters of left ventricu...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-008-9145-9
更新日期:2008-10-01 00:00:00
abstract::The precise relation between heart rate variability (HRV) and autonomic re-innervation has not been established explicitly in patients after orthotopic heart transplantation (OHT), but can be inferred from the fact that the HRV is reduced immediately after OHT and may increase gradually with time. The aim of this stud...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-015-9747-y
更新日期:2016-10-01 00:00:00
abstract:ABSTARCT:To investigate the use of two-site regional oxygen saturations (rSO2) and end tidal carbon dioxide (EtCO2) to assess the effectiveness of resuscitation and return of spontaneous circulation (ROSC). Eight mechanically ventilated juvenile swine underwent 28 ventricular fibrillatory arrests with open cardiac mass...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-019-00291-2
更新日期:2020-02-01 00:00:00
abstract:STUDY OBJECTIVES:Electrical impedance tomography (EIT) is able to reflect physiological parameters such as real-time changes in global and regional lung volume. EIT can aid in the assessment of lung recruitment, and its use has been validated in preliminary studies monitoring mechanical ventilation at the bedside. ICU ...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-006-9021-4
更新日期:2006-06-01 00:00:00
abstract::Water retention and intercompartmental redistribution occur frequently in association with adverse postoperative outcomes, yet the available strategies for non-invasive assessment are limited. One such approach for evaluating body water composition in various circumstances is bio-electrical impedance analysis (BIA). T...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-019-00334-8
更新日期:2020-06-01 00:00:00