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Bilateral bispectral index

C Luis, E Vilà, L Moltó, A Pardo, J L Fernández Candila, S Pacreu
We present the case of an adult patient with drug-resistant epilepsy caused by extensive inflammation in the right cerebral hemisphere. She was scheduled to undergo right functional hemispherectomy, which is common in pediatric surgery, but about which few studies have been published with respect to adult patients. During the intraoperative period, the density spectral array of the bilateral bispectral index (BIS) VISTATM monitoring system was used. We observed a power increase in low frequency (0.1-4Hz) and alpha bands (8-12Hz) in the right hemisphere, where the epileptogenic focus was...
April 16, 2018: Revista Española de Anestesiología y Reanimación
Jin Xi Zheng
The bilateral use of bispectral index (BIS) monitoring in a 68-year-old male who underwent right carotid endarterectomy (CEA) under general anesthesia (GA) is described. During three episodes of right internal carotid artery cross-clamping intraoperatively, the right BIS value rose relative to the left within 1 min of clamping, followed by a return to baseline within 1-2 min of clamp release. Since unilateral BIS values can decrease or increase in response to cross-clamping, a significant difference in left and right BIS values may provide a simple and easily available method to detect cerebral hypoperfusion during CEA under GA...
January 2018: Saudi Journal of Anaesthesia
Jolien Haesen, Ward Eertmans, Cornelia Genbrugge, Ingrid Meex, Jelle Demeestere, Margot Vander Laenen, Willem Boer, Dieter Mesotten, Jo Dens, Frank Jans, Ludovic Ernon, Cathy De Deyne
AIMS: We aimed to validate retrospectively the accuracy of simplified electroencephalography (EEG) monitoring derived from the bispectral index (BIS) monitor in post-cardiac arrest (CA) patients. METHODS: Successfully resuscitated CA patients were transferred to the Catherization Lab followed by percutaneous coronary intervention when indicated. On arrival at the coronary care unit, bilateral BIS monitoring was started and continued up to 72 h. Raw simplified EEG tracings were extracted from the BIS monitor at a time point coinciding with the registration of standard EEG monitoring...
May 2018: Resuscitation
Han-Sheng Liang, Yi Feng
OBJECTIVE: To observe the effect of transcutaneous acupoint electrical stimulation (TAES) on hemodynamic fluctuation caused by loosing tourniquet in the elderly patients undergoing knee joint replacement. METHODS: A total of 60 ASA (America Society Anesthesiologist) I or II elderly patients for elective knee joint replacement surgery were randomly divided into control group (30 cases) and TAES group (30 cases). Patients of both groups were treated by intravenous anesthesia, and monitored with bispectral index (BIS, between 45-60) for anesthesia depth, stroke volume variation (SVV) for fluid management, mean arterial pressure (MAP) and cardiac index (CI) for hemodynamic fluctuation evaluation, and with analgesia nociception index (ANI, between 50-70) for remifentanil dosage adjustment...
December 25, 2017: Zhen Ci Yan Jiu, Acupuncture Research
Ward Eertmans, Cornelia Genbrugge, Gilles Haesevoets, Jo Dens, Willem Boer, Frank Jans, Cathy De Deyne
BACKGROUND: Prognostication in out-of-hospital cardiac arrest (OHCA) survivors is often difficult. Recent studies have shown the predictive ability of bispectral index (BIS) monitoring to assist with early neuroprognostication. The aim of this study was to investigate whether characteristics of BIS values equal to zero (BIS 0) (i.e. duration and/or uni- versus bilateral presence) instead of simply their occurrence are better indicators for poor neurological outcome after OHCA by aiming at a specificity of 100%...
August 22, 2017: Critical Care: the Official Journal of the Critical Care Forum
Félix Ezequiel Fernández Suárez, David Fernández Del Valle, Adrián González Alvarez, Blanca Pérez-Lozano
The total circulatory arrest (CA) is necessary to achieve optimal surgical conditions in certain aortic pathologies, especially in those affecting the ascending aorta and aortic arch. During this procedure it is necessary to protect all the organs of ischemia, especially those of the central nervous system and for this purpose several strategies have been developed. The first and most important protective method is systemic hypothermia. The degree of hypothermia and the route of application have been evolving and currently tend to use moderate hypothermia (MH) (20...
May 2017: Journal of Thoracic Disease
Pedro Lopes-Pimentel, Maylin Koo, Javier Bocos, Antoni Sabaté
BACKGROUND: The composite variability index (CVI), derived from the bispectral analysis (BIS), has been designed to detect nociception; however, there is no evidence that bilateral BIS and CVI show intrapatient reproducibility or variability. METHODS: We conducted an observational study in patients who underwent for total knee arthroplasty. A BIS Bilateral Sensor was applied and continuously recorded at different points of the anesthesia procedure. Bland-Altman limits of agreement and dispersion for BIS and for CVI were applied...
January 2017: Saudi Journal of Anaesthesia
Miguel A Hernández-Hernández, José L Fernández-Torre
PURPOSE: to describe the characteristics of the color density spectral array (CDSA) of bilateral bispectral index (b-BIS) monitoring system in patients with comatose nonconvulsive status epilepticus (NCSE). We hypothesized that CDSA could be helpful for monitoring NCSE in critically subjects if continuous EEG (cEEG) is not available. METHODS: we retrospectively analyzed comatose patients admitted to our neurological intensive care unit (NICU) from 2011 to 2014 with a diagnosis of definitive NCSE that underwent b-BIS monitoring for at least 24h to guide anesthetic sedation...
January 2016: Seizure: the Journal of the British Epilepsy Association
Miguel Ángel Hernández-Hernández, David Iglesias-Posadilla, Ana Ruiz-Ruiz, Vanesa Gómez-Marcos, José Luis Fernández-Torre
No abstract text is available yet for this article.
July 2016: Anales de Pediatría: Publicación Oficial de la Asociación Española de Pediatría (A.E.P.)
Cai-Cai Liu, Xiao-Yan Qian, Jian-Xiong An, Zeng-Lei Yu, Jian-Ping Wu, Hui Wen, Zong-Xin Cao, Yong Wang, Qi-Wu Fang, John P Williams
OBJECTIVES: Electroconvulsive therapy (ECT) has dramatically reduced musculoskeletal complications when carried out with muscle relaxants under general anesthesia. However, seizure quality can be affected by the depth of anesthesia and choice of anesthetic agent. The purpose of this study was to describe a general anesthetic technique for ECT by using laryngeal mask, bispectral index (BIS), and muscle relaxant monitoring. METHODS: Twenty-one patients, between ages 18 and 70 years (American Society of Anesthesiologists physical status I-III), who underwent a total of 89 sessions of ECT were examined in a retrospective study...
March 2016: Journal of ECT
F Iturri Clavero, G Tamayo Medel, K de Orte Sancho, A González Uriarte, A Iglesias Martínez, A Martínez Ruíz
Changes in BIS (bispectral index) VISTA bilateral monitoring system associated with intraoperative episodes of generalized and focal seizures, during total intravenous anesthesia for resection of a left frontal parasagittal meningioma, are herein described.
December 2015: Revista Española de Anestesiología y Reanimación
Caroline Arbour, Céline Gélinas, Carmen G Loiselle, Patricia Bourgault
INTRODUCTION: Many patients with a traumatic brain injury (TBI) cannot communicate because of altered level of consciousness. Although observation of pain behaviors (e.g., frowning) is recommended for pain assessment in nonverbal populations, they are attenuated and sometimes even suppressed in patients with TBI receiving high doses of sedatives. This study explored the potential utility of the bilateral bispectral index system (BIS) for pain detection in critically ill adults with TBI and altered level of consciousness...
June 2015: Journal of Neuroscience Nursing: Journal of the American Association of Neuroscience Nurses
Martin Soehle, Alexander Dittmann, Richard K Ellerkmann, Georg Baumgarten, Christian Putensen, Ulf Guenther
BACKGROUND: Postoperative delirium (POD) occurs frequently after cardiac surgery and is associated with increased morbidity and mortality. We analysed whether perioperative bilateral BIS monitoring may detect abnormalities before the onset of POD in cardiac surgery patients. METHODS: In a prospective observational study, 81 patients undergoing cardiac surgery were included. Bilateral Bispectral Index (BIS)-monitoring was applied during the pre-, intra- and postoperative period, and BIS, EEG Asymmetry (ASYM), and Burst Suppression Ratio (BSR) were recorded...
April 28, 2015: BMC Anesthesiology
Serdar Kokulu, Elif Doğan Bakı, Emre Kaçar, Ahmet Bal, Hasan Şenay, Kübra Demir Üstün, Sezgin Yılmaz, Yüksel Ela, Remziye Gül Sıvacı
BACKGROUND: Use of transversus abdominis plane (TAP) block for postoperative analgesia is continuously increasing. However, few studies have investigated intraoperative effects of TAP block. We aimed to study the effects of TAP block in terms of cost-effectiveness and consumption of inhalation agents. MATERIAL AND METHODS: Forty patients undergoing laparoscopic cholecystectomy were enrolled in this study. Patients were randomly divided into 2 groups: Group 1 (n=20) patients received TAP block and Group 2 (n=20) patients did not receive TAP block...
December 23, 2014: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Ah-Reum Cho, Hae-Kyu Kim, Eun-A Lee, Dong-Hun Lee
A 54-year-old woman with a history of severe tracheal stenosis caused by papillary thyroid cancer with tracheal invasion was admitted for an elective surgery. A bilateral superficial cervical plexus block with 0.5 % ropivacaine 14 ml (7 ml per side) under dexmedetomidine sedation was performed, followed by tracheal dissection and endotracheal tube (ETT) insertion. The patient continued spontaneous respiration without any hypoxic event, and the bispectral index was maintained at a range of 50-80. After ETT insertion, a total thyroidectomy and tracheal resection with end-to-end anastomosis were performed under general anesthesia...
April 2015: Journal of Anesthesia
Stacie Deiner, Isaac Chu, Michelle Mahanian, Hung-Mo Lin, Andrew C Hecht, Jeffrey H Silverstein
PURPOSE: A variety of hemodynamic and respiratory alterations accompany patients in the prone position; however the effect of the prone position on intraoperative cerebral saturation has not been studied. We sought to examine whether the incidence of cerebral oxygen desaturation in elderly patients (≥68 years of age) undergoing spine surgery in the prone position was more common than patients undergoing major surgery in the supine position. METHODS: We performed a retrospective cohort study of 205 patients; 63 patients underwent surgery in the prone position and 142 in the supine position...
2014: PloS One
S Pacreu, E Vila, C Rodríguez, R Arroyo, S Fernández, J L Fernández
The Wada test is a procedure used in the preoperative assessment before epilepsy surgery in order to determine language lateralization, to assess the post-operative risk of an amnesia syndrome, and to evaluate the risk of material-specific memory deficits, in particular verbal memory deficits. This test involves inserting a cannula into the internal carotid artery via the femoral artery, and then to inject amobarbital to shut down brain function, usually in one of the brain hemispheres. The bilateral bispectral index (BIS) VISTA™ monitoring system (BVMS) was used to detect changes in EEG, and in the power spectrum distribution using the density spectral array (DSA) of both hemispheres...
December 2014: Revista Española de Anestesiología y Reanimación
M Soehle, S Kayser, R K Ellerkmann, T E Schlaepfer
BACKGROUND: Electroconvulsive therapy (ECT) is a highly effective and established treatment for depression. Magnetic seizure therapy (MST) has recently been developed and seems equally effective while associated with fewer side-effects. Both require general anaesthesia, which could be quantified using the bispectral index (BIS). We compared ECT and MST with respect to recovery times, left-sided BIS, and left-right differences in BIS. METHODS: In this prospective, observational study, we enrolled 10 successive patients receiving ECT and 10 patients undergoing MST...
April 2014: British Journal of Anaesthesia
M M Sahinovic, U Beese, E H Heeremans, A Kalmar, K van Amsterdam, R J H M Steenbakkers, H Kuiper, R Spanjersberg, R J M Groen, M M R F Struys, A R Absalom
BACKGROUND: The influence of frontal brain tumours on bispectral index (BIS) measurements and propofol requirements is unknown. The primary aim of our study was to determine whether BIS values recorded at loss and return of consciousness (LOC and ROC, respectively) differ between patients with unilateral frontal brain tumours and control patients. Secondary goals were to compare propofol requirements for LOC and to determine whether there were significant inter-hemispheric differences between BIS values in tumour and control patients...
January 2014: British Journal of Anaesthesia
Jess W Brallier, Stacie G Deiner
Earlier diagnosis of cerebral vasospasm and delayed cerebral ischemia (DCI) and treatment has the potential to decrease post-bleed morbidity after subarachnoid hemorrhage (SAH). Previous studies have shown that electroencephalogram (EEG) can detect blood flow changes associated with DCI sooner than other modalities potentially leading to earlier diagnosis. However, continual monitoring with raw EEG requires significant expertise and effort, and may be difficult due to the intermittent need for MRI studies in these patients...
June 2013: Middle East Journal of Anesthesiology
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