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Bis bilateral index

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
Yongming Wang, Zhiling Zou, Hongwen Song, Xiaodan Xu, Huijun Wang, Federico d'Oleire Uquillas, Xiting Huang
Mobile phone dependence (MPD) is a behavioral addiction that has become an increasing public mental health issue. While previous research has explored some of the factors that may predict MPD, the underlying neural mechanisms of MPD have not been investigated yet. The current study aimed to explore the microstructural variations associated with MPD as measured with functional Magnetic Resonance Imaging (fMRI). Gray matter volume (GMV) and white matter (WM) integrity [four indices: fractional anisotropy (FA); mean diffusivity (MD); axial diffusivity (AD); and radial diffusivity (RD)] were calculated via voxel-based morphometry (VBM) and tract-based spatial statistics (TBSS) analysis, respectively...
2016: Frontiers in Psychology
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
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
Masamichi Ikawa, Hidehiko Okazawa, Tetsuya Tsujikawa, Akiko Matsunaga, Osamu Yamamura, Tetsuya Mori, Tadanori Hamano, Yasushi Kiyono, Yasunari Nakamoto, Makoto Yoneda
OBJECTIVE: To investigate cerebral oxidative stress based on an over-reductive state caused by mitochondrial dysfunction and its relationship to disease severity in patients with amyotrophic lateral sclerosis (ALS) using PET with [(62)Cu]diacetyl-bis(N(4)-methylthiosemicarbazone) ((62)Cu-ATSM). METHODS: Twelve patients with ALS and 9 age-matched healthy controls underwent a 20-minute dynamic brain PET scan after (62)Cu-ATSM injection. The standardized uptake value (SUV) images obtained from the last 10 minutes of frames were normalized by the global mean (nSUV)...
May 19, 2015: Neurology
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...
2014: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Seema Bansal, Kanwaljit Chopra
Estrogen is known to influence vascular functions and insulin sensitivity, but the relative contribution of estrogen receptor (ER) isoforms in postmenopausal diabetes-induced vascular dysfunction is unclear. The aim of the present study was to delineate the distinct role of estrogen receptor-α and beta β on the vascular function in ovariectomized diabetic rats. Age matched 60 female sprague dawley rats (200-250g) were divided in nine groups. Bilateral ovariectomy was performed and streptozotocin was used to induce experimental diabetes...
September 15, 2014: General and Comparative Endocrinology
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
José L Fernández-Torre, Miguel A Hernández-Hernández, Juan C Rodríguez-Borregán, Vicente González-Quintanilla
BACKGROUND: Status epilepticus, particularly non-convulsive status epilepticus (NCSE), is a frequent complication in patients with altered renal function receiving treatment with intravenous cefepime. To the best of our knowledge, we report the first case, illustrated by video-EEG, of a critically ill patient receiving treatment with cefepime who developed an episode of confirmed symptomatic myoclonic status epilepticus (MSE). METHODS: Case report and video-EEG...
December 2013: Epileptic Disorders: International Epilepsy Journal with Videotape
Yi-Hong Ding, Chen-Yi Gu, Li-Rong Shen, Liang-Sen Wu, Zheng Shi, Yue-Lai Chen
OBJECTIVE: To observe the effects of different anesthesia ways on endorphin and hemodynamics of laparoscopic cholecystectomy patients in the perioperative phase. METHODS: A total of 90 laparoscopic cholecystectomy patients, 29 to 80 years old, were randomly assigned to Group A (treated with electroacupuncture at acupoints combined general anesthesia), Group B (treated with electroacupuncture at non-acupoints combined general anesthesia), and Group C (treated with general anesthesia) according to American Society of Anesthesiologists (ASA) I-II, 30 cases in each group...
June 2013: Chinese Journal of Integrated Traditional and Western Medicine
Jan H Baars, Ulf Rintisch, Benno Rehberg, Karl Heinz Lahrmann, Falk von Dincklage
Movement responses to noxious stimuli during anaesthesia indicate nociception. Under experimental conditions consistent prediction of such movement responses has been achieved by the use of nociceptive flexion reflexes (NFRs). The aim of this study was to investigate the reliability of NFRs and the electroencephalogram bispectral index (BIS) in predicting motor responses to real surgical stimuli in pigs. The study was undertaken in 30 pigs undergoing bilateral orchiectomy under ketamine/azaperone anaesthesia...
March 2013: Veterinary Journal
Qinglong Dong, Lixia Liang, Yingfen Li, Jun Liu, Weiqiang Yin, Hanzhang Chen, Xin Xu, Wenlong Shao, Jianxing He
OBJECTIVE: To study one-lung respiration during VATS wedge resection of bullae and pulmonary nodules with nontracheal intubation, and to explore the changes of vital signs when patients return to two-lung ventilation. METHODS: Twenty-two patients with normal cardiopulmonary function and absence of contraindications to epidural anesthesia were included in this study. VATS wedge resection of bullae or pulmonary nodules was performed. 0.5% Ropivacain was administrated for epidural anesthesia (T8-9), and 2 mL of 2% lidocaine was used for local anesthetic block of the intrathoracic vagus nerves...
April 1, 2012: Journal of Thoracic Disease
Guo-qiang Fu, Jia Zhou, Qiu-yu Tong, Yu-ming Zhu, Wen Ma, Hong Zhou, Wei-dong Shen
OBJECTIVE: To observe the anti-stress effect of acupuncture-assisted anesthesia in patients undergoing pulmonary lobectomy. METHODS: A randomized, controlled, single-blind clinical trial was conducted in the present study. A total of 48 patients undergoing pulmonary lobectomy were randomized into regular general anesthesia (RGA), general anesthesia combined with 2 Hz electroacupuncture (EA) (GA+2 Hz-EA), general anesthesia combined with 2 Hz/100 Hz EA (GA+2 Hz/100 Hz-EA), and GA + 100 Hz-EA groups (n=12)...
October 2011: Zhen Ci Yan Jiu, Acupuncture Research
José L Fernández-Torre, Miguel A Hernández-Hernández
We report the case of a patient with an extensive right cerebral hematoma complicated by focal nonconvulsive status epilepticus (NCSE) in whom the use of the new bilateral BIS-Vista™ monitor was helpful in managing profound sedation and antiepileptic treatment in the absence of continuous EEG monitoring (CEEG). The analysis of color density spectral array (CDSA) showed stereotyped changes indicative of recurrent focal nonconvulsive seizures (NCSz) and NCSE. We noted a close correlation between NCSz and BIS value changes...
January 2012: Seizure: the Journal of the British Epilepsy Association
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