1
|
Bruns N, Joist CA, Joist CM, Daniels A, Felderhoff-Müser U, Dohna-Schwake C, Tschiedel E. Correlation of Comfort Score and Narcotrend Index during Procedural Sedation with Midazolam and Propofol in Children. J Clin Med 2024; 13:1483. [PMID: 38592307 PMCID: PMC10932229 DOI: 10.3390/jcm13051483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 02/28/2024] [Accepted: 03/02/2024] [Indexed: 04/10/2024] Open
Abstract
Background/Objectives: Precise assessment of hypnotic depth in children during procedural sedation with preserved spontaneous breathing is challenging. The Narcotrendindex (NI) offers uninterrupted information by continuous electrocortical monitoring without the need to apply a stimulus with the risk of assessment-induced arousal. This study aimed to explore the correlation between NI and the Comfort Scale (CS) during procedural sedation with midazolam and propofol and to identify an NI target range for deep sedation. Methods: A prospective observational study was conducted on 176 children (6 months to 17.9 years) undergoing procedural sedation with midazolam premedication and continuous propofol infusion. Statistical analyses included Pearson correlation of NI and CS values, logistic regression, and receiver operating curves. Results: Median NI values varied with CS and age. The correlation coefficient between CS and NI was 0.50 and slightly higher in procedure-specific subgroup analyses. The optimal NI cut-off for deep sedation was between 50 and 60 depending on the analyzed subgroup and displayed high positive predictive values for sufficient sedation throughout. Conclusion: Our study found a moderate correlation between NI and CS, demonstrating reliable identification of adequately sedated patients.
Collapse
Affiliation(s)
- Nora Bruns
- Department of Pediatrics I, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany (E.T.)
- Center for Translational Neuro- and Behavioural Sciences (C-TNBS), University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
| | - Carolina A. Joist
- Department of Pediatrics I, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany (E.T.)
- Center for Translational Neuro- and Behavioural Sciences (C-TNBS), University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
| | - Constantin M. Joist
- Department of Pediatrics I, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany (E.T.)
- Center for Translational Neuro- and Behavioural Sciences (C-TNBS), University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
| | - Anna Daniels
- Department of Pediatrics I, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany (E.T.)
- Center for Translational Neuro- and Behavioural Sciences (C-TNBS), University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
| | - Ursula Felderhoff-Müser
- Department of Pediatrics I, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany (E.T.)
- Center for Translational Neuro- and Behavioural Sciences (C-TNBS), University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
| | - Christian Dohna-Schwake
- Department of Pediatrics I, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany (E.T.)
- Center for Translational Neuro- and Behavioural Sciences (C-TNBS), University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
| | - Eva Tschiedel
- Department of Pediatrics I, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany (E.T.)
- Center for Translational Neuro- and Behavioural Sciences (C-TNBS), University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
| |
Collapse
|
2
|
Cavaliere F, Allegri M, Apan A, Brazzi L, Carassiti M, Cohen E, DI Marco P, Langeron O, Rossi M, Spieth P, Turnbull D, Weber F. A year in review in Minerva Anestesiologica 2023: anesthesia, analgesia, and perioperative medicine. Minerva Anestesiol 2024; 90:222-234. [PMID: 38535972 DOI: 10.23736/s0375-9393.24.18067-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Affiliation(s)
- Franco Cavaliere
- IRCCS A. Gemelli University Polyclinic Foundation, Sacred Heart Catholic University, Rome, Italy -
| | - Massimo Allegri
- Lemanic Center of Analgesia and Neuromodulation EHC, Morges, Switzerland
| | - Alparslan Apan
- Department of Anesthesiology and Intensive Care, Faculty of Medicine, University of Giresun, Giresun, Türkiye
| | - Luca Brazzi
- Department of Surgical Sciences, University of Turin, Turin, Italy
| | - Massimiliano Carassiti
- Unit of Anesthesia, Intensive Care and Pain Management, Campus Bio-Medico University Hospital, Rome, Italy
| | - Edmond Cohen
- Department of Anesthesiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Pierangelo DI Marco
- Department of Cardiovascular, Respiratory, Nephrologic, Anesthesiologic, and Geriatric Sciences, Faculty of Medicine, Sapienza University, Rome, Italy
| | - Olivier Langeron
- Department of Anesthesia and Intensive Care, Henri Mondor University Hospital, Assistance Publique - Hôpitaux de Paris (APHP), University Paris-Est Créteil (UPEC), Paris, France
| | - Marco Rossi
- IRCCS A. Gemelli University Polyclinic Foundation, Sacred Heart Catholic University, Rome, Italy
| | - Peter Spieth
- Department of Anesthesiology and Critical Care Medicine, University Hospital of Dresden, Dresden, Germany
| | - David Turnbull
- Department of Anesthetics and Neuro Critical Care, Royal Hallamshire Hospital, Sheffield, UK
| | - Frank Weber
- Department of Anesthesiology, Sophia Children's Hospital, Erasmus University Medical Center, Rotterdam, the Netherlands
| |
Collapse
|
3
|
Kinoshita M, Sakai Y, Katome K, Matsumoto T, Sakurai S, Jinnouchi Y, Tanaka K. Transition in eye gaze as a predictor of emergence from general anesthesia in children and adults: a prospective observational study. BMC Anesthesiol 2022; 22:320. [PMID: 36253763 PMCID: PMC9575208 DOI: 10.1186/s12871-022-01867-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 10/11/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND It is useful to monitor eye movements during general anesthesia, but few studies have examined neurological finding of the eyes during emergence from general anesthesia maintained with short-acting opioids and volatile anesthetics. METHODS Thirty children aged 1-6 years and 30 adults aged 20-79 years were enrolled. Patients received general anesthesia maintained with sevoflurane and remifentanil. The timing of three physical-behavioral responses-eye-gaze transition (the cycle from conjugate to disconjugate and back to conjugate), resumption of somatic movement (limbs or body), and resumption of respiration-were recorded until spontaneous awakening. The primary outcome measure was the timing of the physical-behavioral responses. Secondary outcome measures were the incidence of eye-gaze transition, and the bispectral index, concentration of end-tidal sevoflurane, and heart rate at the timing of eye-gaze transition. RESULTS Eye-gaze transition was evident in 29 children (96.7%; 95% confidence interval, 82.8-99.9). After the end of surgery, eye-gaze transition was observed significantly earlier than resumption of somatic movement or respiration (472 [standard deviation 219] s, 723 [235] s, and 754 [232] s, respectively; p < 0.001). In adults, 3 cases (10%; 95% CI, 0.2-26.5) showed eye-gaze transition during emergence from anesthesia. The incidence of eye-gaze transition was significantly lower in adults than in children (p < 0.001). CONCLUSION In children, eye-gaze transition was observed significantly earlier than other physical-behavioral responses during emergence from general anesthesia and seemed to reflect emergence from anesthesia. In contrast, observation of eye gaze was not a useful indicator of emergence from anesthesia in adults.
Collapse
Affiliation(s)
- Michiko Kinoshita
- Department of Anesthesiology, Tokushima University Hospital, 2-50-1 Kuramoto-cho, Tokushima-shi, Tokushima, 770-8503, Japan.
| | - Yoko Sakai
- Department of Anesthesiology, Tokushima University Hospital, 2-50-1 Kuramoto-cho, Tokushima-shi, Tokushima, 770-8503, Japan
| | - Kimiko Katome
- Department of Anesthesiology, Tokushima University Hospital, 2-50-1 Kuramoto-cho, Tokushima-shi, Tokushima, 770-8503, Japan
| | - Tomomi Matsumoto
- Department of Anesthesiology, Tokushima University Hospital, 2-50-1 Kuramoto-cho, Tokushima-shi, Tokushima, 770-8503, Japan
| | - Shizuka Sakurai
- Department of Anesthesiology, Tokushima University Hospital, 2-50-1 Kuramoto-cho, Tokushima-shi, Tokushima, 770-8503, Japan
| | - Yuka Jinnouchi
- Department of Anesthesiology, Tokushima University Hospital, 2-50-1 Kuramoto-cho, Tokushima-shi, Tokushima, 770-8503, Japan
| | - Katsuya Tanaka
- Department of Anesthesiology, Tokushima University Hospital, 2-50-1 Kuramoto-cho, Tokushima-shi, Tokushima, 770-8503, Japan
| |
Collapse
|
4
|
Zhan J, Yi TT, Wu ZX, Long ZH, Bao XH, Xiao XD, Du ZY, Wang MJ, Li H. A survey of current practices, attitudes and demands of anaesthesiologists regarding the depth of anaesthesia monitoring in China. BMC Anesthesiol 2021; 21:294. [PMID: 34814841 PMCID: PMC8609812 DOI: 10.1186/s12871-021-01510-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 11/10/2021] [Indexed: 11/10/2022] Open
Abstract
Background In this study, we aimed to analyse survey data to explore two different hypotheses; and for this purpose, we distributed an online survey to Chinese anaesthesiologists. The hypothetical questions in this survey include: (1) Chinese anaesthesiologists mainly use the depth of anaesthesia (DoA) monitors to prevent intraoperative awareness and (2) the accuracy of these monitors is the most crucial performance factor during the clinical daily practice of Chinese anaesthesiologists. Methods We collected and statistically analysed the response of a total of 12,750 anesthesiologists who were invited to participate in an anonymous online survey. The Chinese Society of Anaesthesiologists (CSA) trial group provided the email address of each anaesthesiologist, and the selection of respondents was random from the computerized system. Results The overall response rate was 32.0% (4037 respondents). Only 9.1% (95% confidence interval, 8.2-10.0%) of the respondents routinely used DoA monitors. Academic respondents (91.5, 90.3-92.7%) most frequently used DoA monitoring to prevent awareness, whereas nonacademic respondents (88.8, 87.4-90.2%) most frequently used DoA monitoring to guide the delivery of anaesthetic agents. In total, the number of respondents who did not use a DoA monitor and whose patients experienced awareness (61.7, 57.8-65.6%) was significantly greater than those who used one or several DoA monitors (51.5, 49.8-53.2%). Overall, the crucial performance factor during DoA monitoring was considered by 61.9% (60.4-63.4%) of the respondents to be accuracy. However, most respondents (95.7, 95.1-96.3%) demanded improvements in the accuracy of the monitors for DoA monitoring. In addition, broad application in patients of all ages (86.3, 85.2-87.4%), analgesia monitoring (80.4, 79.2-81.6%), and all types of anaesthetic agents (75.6, 74.3-76.9%) was reported. In total, 65.0% (63.6-66.5%) of the respondents believed that DoA monitors should be combined with EEG and vital sign monitoring, and 53.7% (52.1-55.2%) believed that advanced DoA monitors should include artificial intelligence. Conclusions Academic anaesthesiologists primarily use DoA monitoring to prevent awareness, whereas nonacademic anaesthesiologists use DoA monitoring to guide the delivery of anaesthetics. Anaesthesiologists demand high-accuracy DoA monitors incorporating EEG signals, multiple vital signs, and antinociceptive indicators. DoA monitors with artificial intelligence may represent a new direction for future research on DoA monitoring. Supplementary Information The online version contains supplementary material available at 10.1186/s12871-021-01510-7.
Collapse
Affiliation(s)
- Jian Zhan
- Department of Anaesthesiology, Second Affiliated Hospital of Army Medical University, Chongqing, 400037, China.,Department of Anaesthesiology, Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Ting-Ting Yi
- Department of Anaesthesiology, Yongchuan Hospital, Chongqing Medical University, Chongqing, 402160, China
| | - Zhuo-Xi Wu
- Department of Anaesthesiology, Second Affiliated Hospital of Army Medical University, Chongqing, 400037, China
| | - Zong-Hong Long
- Department of Anaesthesiology, Second Affiliated Hospital of Army Medical University, Chongqing, 400037, China
| | - Xiao-Hang Bao
- Department of Anaesthesiology, Second Affiliated Hospital of Army Medical University, Chongqing, 400037, China
| | - Xu-Dong Xiao
- Department of Anaesthesiology, Second Affiliated Hospital of Army Medical University, Chongqing, 400037, China
| | - Zhi-Yong Du
- Department of Anaesthesiology, Second Affiliated Hospital of Army Medical University, Chongqing, 400037, China
| | - Ming-Jun Wang
- Department of Anaesthesiology, The First Medical Center of Chinese PLA General Hospital, Beijing, 100853, China.
| | - Hong Li
- Department of Anaesthesiology, Second Affiliated Hospital of Army Medical University, Chongqing, 400037, China.
| |
Collapse
|
5
|
Heiderich S, Ghasemi T, Dennhardt N, Sümpelmann R, Rigterink V, Nickel K, Keil O, Böthig D, Beck CE. Correlation of exhaled propofol with Narcotrend index and calculated propofol plasma levels in children undergoing surgery under total intravenous anesthesia - an observational study. BMC Anesthesiol 2021; 21:161. [PMID: 34039280 PMCID: PMC8149920 DOI: 10.1186/s12871-021-01368-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 05/04/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Exhaled propofol concentrations correlate with propofol concentrations in adult human blood and the brain tissue of rats, as well as with electroencephalography (EEG) based indices of anesthetic depth. The pharmacokinetics of propofol are however different in children compared to adults. The value of exhaled propofol measurements in pediatric anesthesia has not yet been investigated. Breathing system filters and breathing circuits can also interfere with the measurements. In this study, we investigated correlations between exhaled propofol (exP) concentrations and the Narkotrend Index (NI) as well as calculated propofol plasma concentrations. METHODS A multi-capillary-column (MCC) combined with ion mobility spectrometry (IMS) was used to determine exP. Optimal positioning of breathing system filters (near-patient or patient-distant) and sample line (proximal or distal to filter) were investigated. Measurements were taken during induction (I), maintenance (M) and emergence (E) of children under total intravenous anesthesia (TIVA). Correlations between ExP concentrations and NI and predicted plasma propofol concentrations (using pediatric pharmacokinetic models Kataria and Paedfusor) were assessed using Pearson correlation and regression analysis. RESULTS Near-patient positioning of breathing system filters led to continuously rising exP values when exP was measured proximal to the filters, and lower concentrations when exP was measured distal to the filters. The breathing system filters were therefore subsequently attached between the breathing system tubes and the inspiratory and expiratory limbs of the anesthetic machine. ExP concentrations significantly correlated with NI and propofol concentrations predicted by pharmacokinetic models during induction and maintenance of anesthesia. During emergence, exP significantly correlated with predicted propofol concentrations, but not with NI. CONCLUSION In this study, we demonstrated that exP correlates with calculated propofol concentrations and NI during induction and maintenance in pediatric patients. However, the correlations are highly variable and there are substantial obstacles: Without patient proximal placement of filters, the breathing circuit tubing must be changed after each patient, and furthermore, during ventilation, a considerable additional loss of heat and moisture can occur. Adhesion of propofol to plastic parts (endotracheal tube, breathing circle) may especially be problematic during emergence. TRIAL REGISTRATION The study was registered in the German registry of clinical studies (DRKS-ID: DRKS00015795 ).
Collapse
Affiliation(s)
- Sebastian Heiderich
- Clinic of Anesthesiology and Intensive Care Medicine, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany.
| | - Tara Ghasemi
- Clinic of Anesthesiology and Intensive Care Medicine, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Nils Dennhardt
- Clinic of Anesthesiology and Intensive Care Medicine, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Robert Sümpelmann
- Clinic of Anesthesiology and Intensive Care Medicine, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Vanessa Rigterink
- Clinic of Anesthesiology and Intensive Care Medicine, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Katja Nickel
- Clinic of Anesthesiology and Intensive Care Medicine, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Oliver Keil
- Clinic of Anesthesiology and Intensive Care Medicine, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Dietmar Böthig
- Department for Pediatric Cardiology and Intensive Care, Hannover Medical School, Hannover, Germany
| | - Christiane E Beck
- Clinic of Anesthesiology and Intensive Care Medicine, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| |
Collapse
|
6
|
Abdel-Ghaffar HS, Abdel-Wahab AH, Roushdy MM. Using the Perfusion Index to predict changes in the depth of anesthesia in children compared with the A-line Autoregression Index: an observational study. BRAZILIAN JOURNAL OF ANESTHESIOLOGY (ELSEVIER) 2021:S0104-0014(21)00198-6. [PMID: 33991553 DOI: 10.1016/j.bjane.2021.04.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 04/11/2021] [Accepted: 04/25/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND We investigated the performance of the Perfusion Index (PI) derived from pulse oximetry waveform as a tool for assessment of anesthetic depth in comparison with A-line Autoregression Index (AAI) derived from analysis of Middle-Latency Auditory Evoked Potentials (MLAEP) waveform integrated by aepEXplus monitor in children receiving sevoflurane anesthesia for tonsillectomy. METHODS Forty-one patients (4-12 years old) were included in this study. The PI and AAI were recorded simultaneously every minute during different stages of anesthesia delivery. The statistical tests included descriptive analysis, significance tests, correlation tests, and Receiver Operating Characteristic (ROC) curve. The AAI served as a reference. RESULTS The PI significantly decreased during light anesthesia and recovery, and significantly increased during deeper planes of anesthesia, with an inverse mirror-image relationship with the AAI. A negative correlation of low to moderate degree was detected between PI and AAI during the study (p > 0.05), that reached a statistical significance at the 5th minute during sevoflurane mask induction (r = -0.457, p = 0.008). ROC analysis at an AAI < 25 extracted the best cut-off value for PI before intubation as 1.48 (AUC = 0.698 [0.537-0.859], 94.4% sensitivity, 44.5% specificity) and at 10-minute intraoperatively as 2.4 (AUC = 0.537 [0.354-0.721], 91.7% sensitivity, 31% specificity). During recovery, at an AAI ≥ 50, the best cutoff was 1.82 (AUC = 0.661 [0.46-0.863], 100% sensitivity and 50% specificity) 2 minutes before spontaneous eye opening. CONCLUSIONS Compared with the AAI, the PI can track changes in depth of anesthesia in pediatric patients undergoing tonsillectomy under sevoflurane anesthesia. TRIAL REGISTRATION Clinical Trials. Gov. Identifier: NCT03412214.
Collapse
Affiliation(s)
- Hala Saad Abdel-Ghaffar
- Assiut University, Faculty of Medicine, Anesthesia and Intensive Care Department, Assiut, Egypt.
| | | | | |
Collapse
|
7
|
|
8
|
Dias R, Dave N, Agrawal B, Baghele A. Correlation between bispectral index, end-tidal anaesthetic gas concentration and difference in inspired-end-tidal oxygen concentration as measures of anaesthetic depth in paediatric patients posted for short surgical procedures. Indian J Anaesth 2019; 63:277-283. [PMID: 31000891 PMCID: PMC6460983 DOI: 10.4103/ija.ija_653_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Background and Aims: Measurement of end-tidal anaesthetic gas concentrations (ETAG) is currently a pragmatic indicator for monitoring anaesthetic depth. We aimed to assess the performance of ETAG for sevoflurane (ETAG-sevo) with bispectral index (BIS) and difference between inspired and end-tidal oxygen concentration (Fi−Et)O2% in measuring anaesthetic depth in toddlers and preschool children. Primary outcome was to correlate BIS with ETAG-sevo. Secondary outcome was to correlate (Fi−Et)O2% with ETAG-sevo and to derive cut-off value of (Fi−Et)O2%which corresponds with light planes of anaesthesia [minimum alveolar concentration (MAC <0.6)]. Methods: Thirty patients between 1 and 5 years of age undergoing short procedures were included. ETAG, MAC, BIS and (Fi−Et)O2% were measured at intubation, maintenance phase, last 15 min of surgery, end of surgery, extubation, recovery. Pearson's correlation coefficient was used to measure correlation. Receiver operating characteristic (ROC) curves were used to derive cut-off value of (Fi−Et)O2% which corresponded with MAC <0.6. Results: BIS correlated poorly with ETAG at all time intervals. Significant correlation was seen between (Fi−Et)O2% and ETAG at intubation (P = 0.042), last 15 min of surgery (P = 0.019) and end of surgery (P = 0.001). Cut-off value >7 was obtained for (Fi−Et)O2% corresponding to MAC <0.6 at extubation with area under ROC curve0.955 (95% confidence interval 0.811–0.997), with sensitivity 0.8571 and specificity 1.00. Conclusion: BIS was an unreliable measure of anaesthetic depth. (Fi−Et)O2% values >7 corresponded with light planes of anaesthesia.
Collapse
Affiliation(s)
- Raylene Dias
- Department of Paediatric Anaesthesiology, Seth GS Medical College and KEM Hospital, Mumbai, Maharashtra, India
| | - Nandini Dave
- Department of Paediatric Anaesthesiology, Seth GS Medical College and KEM Hospital, Mumbai, Maharashtra, India
| | - Barkha Agrawal
- Department of Paediatric Anaesthesiology, Seth GS Medical College and KEM Hospital, Mumbai, Maharashtra, India
| | - Aarti Baghele
- Department of Paediatric Anaesthesiology, Seth GS Medical College and KEM Hospital, Mumbai, Maharashtra, India
| |
Collapse
|
9
|
Clinical signs and electroencephalographic patterns of emergence from sevoflurane anaesthesia in children: An observational study. Eur J Anaesthesiol 2019; 35:49-59. [PMID: 29120939 PMCID: PMC5728588 DOI: 10.1097/eja.0000000000000739] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
BACKGROUND Few studies have systematically described relationships between clinical-behavioural signs, electroencephalographic (EEG) patterns and age during emergence from anaesthesia in young children. OBJECTIVE To identify the relationships between end-tidal sevoflurane (ETsevoflurane) concentration, age and frontal EEG spectral properties in predicting recovery of clinical-behavioural signs during emergence from sevoflurane in children 0 to 3 years of age, with and without exposure to nitrous oxide. The hypothesis was that clinical signs occur sequentially during emergence, and that for infants aged more than 3 months, changes in alpha EEG power are correlated with clinical-behavioural signs. DESIGN An observational study. SETTING A tertiary paediatric teaching hospital from December 2012 to August 2016. PATIENTS Ninety-five children aged 0 to 3 years who required surgery below the neck. OUTCOME MEASURES Time-course of, and ETsevoflurane concentrations at first gross body movement, first cough, first grimace, dysconjugate eye gaze, frontal (F7/F8) alpha EEG power (8 to 12 Hz), frontal beta EEG power (13 to 30 Hz), surgery-end. RESULTS Clinical signs of emergence followed an orderly sequence of events across all ages. Clinical signs occurred over a narrow ETsevoflurane, independent of age [movement: 0.4% (95% confidence interval (CI), 0.3 to 0.4), cough 0.3% (95% CI, 0.3 to 0.4), grimace 0.2% (95% CI, 0 to 0.3); P > 0.5 for age vs. ETsevoflurane]. Dysconjugate eye gaze was observed between ETsevoflurane 1 to 0%. In children more than 3 months old, frontal alpha EEG oscillations were present at ETsevoflurane 2.0% and disappeared at 0.5%. Movement occurred within 5 min of alpha oscillation disappearance in 99% of patients. Nitrous oxide had no effect on the time course or ETsevoflurane at which children showed body movement, grimace or cough. CONCLUSION Several clinical signs occur sequentially during emergence, and are independent of exposure to nitrous oxide. Eye position is poorly correlated with other clinical signs or ETsevoflurane. EEG spectral characteristics may aid prediction of clinical-behavioural signs in children more than 3 months.
Collapse
|
10
|
de Heer IJ, Bouman SJM, Weber F. Electroencephalographic (EEG) density spectral array monitoring in children during sevoflurane anaesthesia: a prospective observational study. Anaesthesia 2018; 74:45-50. [PMID: 30367683 PMCID: PMC6587930 DOI: 10.1111/anae.14458] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/03/2018] [Indexed: 01/09/2023]
Abstract
Electroencephalographic density spectral array monitoring has been developed to facilitate the interpretation of unprocessed electroencephalogram signals. The primary aim of this prospective observational study, performed in a tertiary children's hospital, was to identify the clinical applicability and validity of density spectral array monitoring in infants and children during sevoflurane anaesthesia. We included 104 children, aged < 6 years, undergoing elective surgery during sevoflurane anaesthesia. We investigated the correlation between non‐steady state end‐tidal sevoflurane and the expression of the four electroencephalogram frequency bands β, α, θ and δ, representing density spectral array. Patients were divided into three age groups (< 6 months, 6–12 months, > 12 months). There was a significant correlation between end‐tidal sevoflurane and density spectral array in the age groups 6–12 months (p < 0.05) and 1–6 years (p < 0.0001). In infants < 6 months of age, the relative percentages of density spectral array did not correlate with end‐tidal sevoflurane. The main finding was that different end‐tidal concentrations of sevoflurane produce age‐dependent changes in the density spectral array power spectrum. In infants younger than 6 months‐old, α and β coherence are absent, whereas θ and δ oscillations have already emerged. In cases where anaesthesia was too deep, this presented as burst suppression on the electroencephalogram, θ disappeared, leaving the electroencephalographic activity in the δ range. Future research should address this issue, aiming to clarify whether the emergence of θ oscillations in infants helps to prevent sevoflurane overdosing.
Collapse
Affiliation(s)
- I J de Heer
- Department of Anaesthesia, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - S J M Bouman
- Department of Anaesthesia, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - F Weber
- Department of Paediatric Anaesthesia, Sophia Children's Hospital, Erasmus University Medical Centre, Rotterdam, The Netherlands
| |
Collapse
|
11
|
Weber F, Walhout LC, Escher JC. The impact of Narcotrend™ EEG-guided propofol administration on the speed of recovery from pediatric procedural sedation-A randomized controlled trial. Paediatr Anaesth 2018; 28:443-449. [PMID: 29575232 DOI: 10.1111/pan.13365] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/25/2018] [Indexed: 01/02/2023]
Abstract
BACKGROUND Propofol is often used for procedural sedation in children undergoing gastrointestinal endoscopy. Reliable assessment of the depth of hypnosis during the endoscopic procedure is challenging. Processed electroencephalography using the Narcotrend Index can help titrating propofol to a predefined sedation level. AIMS The aim of this trial was to investigate the impact of Narcotrend Index-guided titration of propofol delivery on the speed of recovery. METHODS Children, aged 12-17 years, undergoing gastrointestinal endoscopy under procedural sedation, had propofol delivered via target controlled infusion either based on Narcotrend Index guidance (group NI) or standard clinical parameters (group C). Sedation was augmented with remifentanil in both study groups. The primary endpoint of this study was to compare the speed of fulfilling discharge criteria from the operating room between study groups. Major secondary endpoints were propofol consumption, discharge readiness from the recovery room, hypnotic depth as measured by the Narcotrend Index, and adverse events. RESULTS Of the 40 children included, data were obtainable from 37. The time until discharge readiness from the operating room was shorter in group NI than in group C, with a difference between medians of 4.76 minutes [95%CI 2.6 to 7.4 minutes]. The same accounts for recovery room discharge times; difference between medians 4.03 minutes [95%CI 0.81 to 7.61 minutes]. Propofol consumption and the percentage of EEG traces indicating oversedation were higher in group C than in group NI. There were no significant adverse events in either study group. CONCLUSION Narcotrend Index guidance of propofol delivery for deep sedation in children aged 12-17 years, underdoing gastrointestinal endoscopy results in faster recovery, less drug consumption, and fewer episodes of oversedation than dosing propofol according to clinical surrogate parameters of depth of hypnosis. The results of this study provide additional evidence in favor of the safety profile of propofol/remifentanil for procedural sedation in adequately selected pediatric patients.
Collapse
Affiliation(s)
- Frank Weber
- Department of Anaesthesiology, Erasmus University Medical Center - Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Laurence C Walhout
- Department of Paediatrics, Erasmus University Medical Center - Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Johanna C Escher
- Department of Paediatrics, Erasmus University Medical Center - Sophia Children's Hospital, Rotterdam, The Netherlands
| |
Collapse
|
12
|
Cheung YM, Scoones G, Stolker RJ, Weber F. Use, applicability and reliability of depth of hypnosis monitors in children - a survey among members of the European Society for Paediatric Anaesthesiology. BMC Anesthesiol 2018; 18:40. [PMID: 29661242 PMCID: PMC5902980 DOI: 10.1186/s12871-018-0503-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 04/03/2018] [Indexed: 12/03/2022] Open
Abstract
Background To assess the thoughts of practicing anaesthesiologists about the use of depth of hypnosis monitors in children. Methods Members of the European Society for Paediatric Anaesthesiology were invited to participate in an online survey about their thoughts regarding the use, applicability and reliability of hypnosis monitoring in children. Results The survey achieved a response rate of 30% (N = 168). A total of 138 completed surveys were included for further analysis. Sixty-eight respondents used hypnosis monitoring in children (Users) and 70 did not (Non-users). Sixty-five percent of the Users reported prevention of intra-operative awareness as their main reason to apply hypnosis monitoring. Among the Non-users, the most frequently given reason (43%) not to use hypnosis monitoring in children was the perceived lack or reliability of the devices in children. Hypnosis monitoring is used with a higher frequency during propofol anaesthesia than during inhalation anaesthesia. Hypnosis monitoring is furthermore used more frequently in children > 4 years than in younger children. An ideal hypnosis monitor should be reliable for all age groups and any (combination of) anaesthetic drug. We found no agreement in the interpretation of monitor index values and subsequent anaesthetic interventions following from it. Conclusions Prevention of intraoperative awareness appears to be the most important reason to use hypnosis monitoring in children. The perceived lack of reliability of hypnosis monitoring in children is the most important reasons not to use it. No consensus currently exists on how to adjust anaesthesia according to hypnosis monitor index values in children. Electronic supplementary material The online version of this article (10.1186/s12871-018-0503-y) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Yuen Man Cheung
- Department of Anaesthesiology, Erasmus University Medical Centre - Sophia Children's Hospital, Room H-1273, P.O. box 2040, 3000, CA, Rotterdam, the Netherlands.
| | - Gail Scoones
- Department of Anaesthesiology, Erasmus University Medical Centre - Sophia Children's Hospital, Room H-1273, P.O. box 2040, 3000, CA, Rotterdam, the Netherlands
| | - Robert Jan Stolker
- Department of Anaesthesiology, Erasmus University Medical Centre - Sophia Children's Hospital, Room H-1273, P.O. box 2040, 3000, CA, Rotterdam, the Netherlands
| | - Frank Weber
- Department of Anaesthesiology, Erasmus University Medical Centre - Sophia Children's Hospital, Room H-1273, P.O. box 2040, 3000, CA, Rotterdam, the Netherlands
| |
Collapse
|
13
|
Chidambaran V, Tewari A, Mahmoud M. Anesthetic and pharmacologic considerations in perioperative care of obese children. J Clin Anesth 2018; 45:39-50. [DOI: 10.1016/j.jclinane.2017.12.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 12/11/2017] [Accepted: 12/14/2017] [Indexed: 10/18/2022]
|
14
|
Dennhardt N, Arndt S, Beck C, Boethig D, Heiderich S, Schultz B, Weber F, Sümpelmann R. Effect of age on Narcotrend Index monitoring during sevoflurane anesthesia in children below 2 years of age. Paediatr Anaesth 2018; 28:112-119. [PMID: 29274102 DOI: 10.1111/pan.13306] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/26/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND In older children, different electroencephalogram-based algorithms for measuring depth of anesthesia displayed a similar performance as in adults, but in infants they have not displayed the same reliability so far. According to the individual developmental state, the Narcotrend distinguishes "differentiated" electroencephalograms, which can be classified using the full Narcotrend Index scale, from "undifferentiated" electroencephalograms, which are classified using a scale with fewer stages. OBJECTIVE The objective of this prospective clinical observational study was to assess the feasibility and performance of the Narcotrend monitor in children <2 years within a clinical setting. METHODS Sixty-one children aged 0-24 months undergoing general anesthesia with sevoflurane and remifentanil for elective pediatric surgery were studied. We investigated the percentage of differentiated electroencephalograms and the correlation between multiples of minimal alveolar sevoflurane concentration and the Narcotrend Index according to age groups. Prediction probability was used to evaluate the performance of the Narcotrend Index for differentiation between consciousness and unconsciousness and between different sevoflurane concentrations. RESULTS The percentage of differentiated electroencephalograms increased with increasing age (0-3 months: 23.8%, 4-5 months: 87.5%, 6-11 months: 92.3%, 12-24 months: 100%). The overall prediction probability of Narcotrend Index was 1.0 (SE 0.05) for differentiation between awake and loss of consciousness and 1.0 (SE 0.01) for differentiation between anesthetized and return of consciousness. Spearman correlation analysis revealed a significant negative correlation between sevoflurane concentration and the Narcotrend Index (r = -0.78, P < .0001, 95%CI: -0.81 to -0.74). Overall prediction probability of Narcotrend Index to sevoflurane concentration was 0.8 (95%CI: 0.78-0.82). CONCLUSION The Narcotrend monitor indicated a Narcotrend Index in most infants and young children starting from 4 months with significant correlation to and acceptable prediction probability for minimal alveolar sevoflurane concentration.
Collapse
Affiliation(s)
- Nils Dennhardt
- Clinic for Anesthesiology and Intensive Care Medicine, Hanover Medical School, Hanover, Germany
| | - Stefanie Arndt
- Clinic for Anesthesiology and Intensive Care Medicine, Hanover Medical School, Hanover, Germany
| | - Christiane Beck
- Clinic for Anesthesiology and Intensive Care Medicine, Hanover Medical School, Hanover, Germany
| | - Dietmar Boethig
- Clinic for Cardiac, Thoracic, Transplant and Vascular Surgery, Hanover Medical School, Hanover, Germany
| | - Sebastian Heiderich
- Clinic for Anesthesiology and Intensive Care Medicine, Hanover Medical School, Hanover, Germany
| | - Barbara Schultz
- Clinic for Anesthesiology and Intensive Care Medicine, Hanover Medical School, Hanover, Germany
| | - Frank Weber
- Department of Anesthesia, Sophia Children's Hospital, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Robert Sümpelmann
- Clinic for Anesthesiology and Intensive Care Medicine, Hanover Medical School, Hanover, Germany
| |
Collapse
|
15
|
Stolwijk LJ, Weeke LC, de Vries LS, van Herwaarden MYA, van der Zee DC, van der Werff DBM, Benders MJNL, Toet M, Lemmers PMA. Effect of general anesthesia on neonatal aEEG-A cohort study of patients with non-cardiac congenital anomalies. PLoS One 2017; 12:e0183581. [PMID: 28859124 PMCID: PMC5578644 DOI: 10.1371/journal.pone.0183581] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 08/07/2017] [Indexed: 11/18/2022] Open
Abstract
Introduction The aim of the current study was to determine the effect of general anesthesia on neonatal brain activity using amplitude-integrated EEG (aEEG). Methods A prospective cohort study of neonates (January 2013-December 2015), who underwent major neonatal surgery for non-cardiac congenital anomalies. Anesthesia was administered at the discretion of the anesthetist. aEEG monitoring was started six hours preoperatively until 24 hours after surgery. Analysis of classes of aEEG background patterns, ranging from continuous normal voltage to flat trace in six classes, and quantitative EEG-measures, using spontaneous activity transients (SATs) and interSATintervals (ISI), was performed. Results In total, 111 neonates were included (36 preterm/75 full-term), age at time of surgery was (median (range) 2 (0–32) days. During anesthesia depression of brain activity was seen, with background patterns ranging from flat trace to discontinuous normal voltage. In most patients brain activity was two background pattern classes lower during anesthesia. After cessation of anesthesia, recovery to preoperative brain activity occurred within 24 hours in 86% of the preterm and 96% of the term infants. Gestational age and the dose of sevoflurane were significantly associated with SAT-rate (F(2,68) = 9.288, p < 0.001) and ISI- durations during surgery (F(3,71) = 12.96, p < 0.001). Background pattern and quantitative EEG-values were not associated with brain lesions (χ2(4) = 2.086, ns). Conclusion aEEG shows a variable reduction of brain activity in response to anesthesia in neonates with noncardiac congenital anomalies, with fast recovery after cessation of anesthesia. This reduction is related to gestational age and the dose of sevoflurane. The aEEG offers the opportunity to monitor the depth of anesthesia in the neonate.
Collapse
Affiliation(s)
- Lisanne J. Stolwijk
- Department of Neonatology, University Medical Center Utrecht, the Netherlands
- Brain Center Rudolf Magnus, University Medical Center Utrecht, the Netherlands
- Department of Pediatric Surgery, University Medical Center Utrecht, the Netherlands
| | - Lauren C. Weeke
- Department of Neonatology, University Medical Center Utrecht, the Netherlands
- Brain Center Rudolf Magnus, University Medical Center Utrecht, the Netherlands
| | - Linda S. de Vries
- Department of Neonatology, University Medical Center Utrecht, the Netherlands
- Brain Center Rudolf Magnus, University Medical Center Utrecht, the Netherlands
| | | | - David C. van der Zee
- Department of Pediatric Surgery, University Medical Center Utrecht, the Netherlands
| | | | | | - Mona Toet
- Department of Neonatology, University Medical Center Utrecht, the Netherlands
| | - Petra M. A. Lemmers
- Department of Neonatology, University Medical Center Utrecht, the Netherlands
- * E-mail:
| |
Collapse
|
16
|
A Prospective Study of Age-dependent Changes in Propofol-induced Electroencephalogram Oscillations in Children. Anesthesiology 2017; 127:293-306. [PMID: 28657957 DOI: 10.1097/aln.0000000000001717] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND In adults, frontal electroencephalogram patterns observed during propofol-induced unconsciousness consist of slow oscillations (0.1 to 1 Hz) and coherent alpha oscillations (8 to 13 Hz). Given that the nervous system undergoes significant changes during development, anesthesia-induced electroencephalogram oscillations in children may differ from those observed in adults. Therefore, we investigated age-related changes in frontal electroencephalogram power spectra and coherence during propofol-induced unconsciousness. METHODS We analyzed electroencephalogram data recorded during propofol-induced unconsciousness in patients between 0 and 21 yr of age (n = 97), using multitaper spectral and coherence methods. We characterized power and coherence as a function of age using multiple linear regression analysis and within four age groups: 4 months to 1 yr old (n = 4), greater than 1 to 7 yr old (n = 16), greater than 7 to 14 yr old (n = 30), and greater than 14 to 21 yr old (n = 47). RESULTS Total electroencephalogram power (0.1 to 40 Hz) peaked at approximately 8 yr old and subsequently declined with increasing age. For patients greater than 1 yr old, the propofol-induced electroencephalogram structure was qualitatively similar regardless of age, featuring slow and coherent alpha oscillations. For patients under 1 yr of age, frontal alpha oscillations were not coherent. CONCLUSIONS Neurodevelopmental processes that occur throughout childhood, including thalamocortical development, may underlie age-dependent changes in electroencephalogram power and coherence during anesthesia. These age-dependent anesthesia-induced electroencephalogram oscillations suggest a more principled approach to monitoring brain states in pediatric patients.
Collapse
|
17
|
Dennhardt N, Boethig D, Beck C, Heiderich S, Boehne M, Leffler A, Schultz B, Sümpelmann R. Optimization of initial propofol bolus dose for EEG Narcotrend Index-guided transition from sevoflurane induction to intravenous anesthesia in children. Paediatr Anaesth 2017; 27:425-432. [PMID: 28213945 DOI: 10.1111/pan.13118] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/08/2017] [Indexed: 12/01/2022]
Abstract
BACKGROUND Sevoflurane induction followed by intravenous anesthesia is a widely used technique to combine the benefits of an easier and less traumatic venipuncture after sevoflurane inhalation with a recovery with less agitation, nausea, and vomiting after total intravenous anesthesia (TIVA). Combination of two different anesthetics may lead to unwanted burst suppression in the electroencephalogram (EEG) during the transition phase. OBJECTIVE The objective of this prospective clinical observational study was to identify the optimal initial propofol bolus dose for a smooth transition from sevoflurane induction to TIVA using the EEG Narcotrend Index (NI). METHODS Fifty children aged 1-8 years scheduled for elective pediatric surgery were studied. After sevoflurane induction and establishing of an intravenous access, a propofol bolus dose range 0-5 mg·kg-1 was administered at the attending anesthetist's discretion to maintain a NI between 20 and 64, and sevoflurane was stopped. Anesthesia was continued as TIVA with a propofol infusion dose of 15 mg·kg-1 ·h-1 for the first 15 min, followed by stepwise reduction according to McFarlan's pediatric infusion regime, and remifentanil 0.25 μg·kg-1 ·min-1 . Endtidal concentration of sevoflurane, NI, and hemodynamic data were recorded during the whole study period using a standardized case report form. Propofol plasma concentrations were calculated using the paedfusor dataset and a TIVA simulation program. RESULTS Median endtidal concentration of sevoflurane at the time of administration of the propofol bolus was 5.1 [IQR 4.7-5.9] Vol%. The median propofol bolus dose was 1.2 [IQR 0.9-2.5] mg·kg-1 and median NI thereafter was 33 [IQR 23-40]. Nine children presented with a NI 13-20 and three children with burst suppression in the EEG (NI 0-12); all of them received an initial propofol bolus dose >2 mg·kg-1 . Regression equation demonstrated that NI 20-64 was achieved with a 95% probability when using a propofol bolus dose of 1 mg·kg-1 after sevoflurane induction. Decrease in mean arterial blood pressure correlated significantly with propofol bolus dose (P = 0.038). After 25 min of TIVA, children younger than 2 years had a higher NI (median difference 14.0, 95%CI: 6.0-20.0, P = 0.001), higher deviations from the expected Narcotend Index (median difference 4.1, 95%CI: 3.9-4.2, P < 0.001) and lower calculated propofol plasma concentrations (median difference 0.2 μg·ml-1 , 95% CI: 0.1-0.3 μg·ml-1 , P < 0.001) than older children. CONCLUSION After sevoflurane induction, a reduced propofol bolus dose of 1 mg·kg-1 followed by TIVA according to McFarlan's regime resulted in a NI within the recommended range in children aged 1-8 years. During the course of TIVA, children younger than 2 years displayed higher NI values and more pronounced interindividual variation. Processed EEG monitoring is recommended to find adequate individual age-dependent doses.
Collapse
Affiliation(s)
- Nils Dennhardt
- Clinic for Anesthesiology and Intensive Care Medicine, Hanover Medical School, Hanover, Germany
| | - Dietmar Boethig
- Clinic for Cardiac, Thoracic, Transplant and Vascular Surgery, Hanover Medical School, Hanover, Germany
| | - Christiane Beck
- Clinic for Anesthesiology and Intensive Care Medicine, Hanover Medical School, Hanover, Germany
| | - Sebastian Heiderich
- Clinic for Anesthesiology and Intensive Care Medicine, Hanover Medical School, Hanover, Germany
| | - Martin Boehne
- Clinic for Pediatric Cardiology and Pediatric Intensive Care Medicine, Hanover Medical School, Hanover, Germany
| | - Andreas Leffler
- Clinic for Anesthesiology and Intensive Care Medicine, Hanover Medical School, Hanover, Germany
| | - Barbara Schultz
- Clinic for Anesthesiology and Intensive Care Medicine, Hanover Medical School, Hanover, Germany
| | - Robert Sümpelmann
- Clinic for Anesthesiology and Intensive Care Medicine, Hanover Medical School, Hanover, Germany
| |
Collapse
|
18
|
Baarslag MA, Allegaert K, Van Den Anker JN, Knibbe CAJ, Van Dijk M, Simons SHP, Tibboel D. Paracetamol and morphine for infant and neonatal pain; still a long way to go? Expert Rev Clin Pharmacol 2016; 10:111-126. [PMID: 27785937 DOI: 10.1080/17512433.2017.1254040] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Pharmacologic pain management in newborns and infants is often based on limited scientific data. To close the knowledge gap, drug-related research in this population is increasingly supported by the authorities, but remains very challenging. This review summarizes the challenges of analgesic studies in newborns and infants on morphine and paracetamol (acetaminophen). Areas covered: Aspects such as the definition and multimodal character of pain are reflected to newborn infants. Specific problems addressed include defining pharmacodynamic endpoints, performing clinical trials in this population and assessing developmental changes in both pharmacokinetics and pharmacodynamics. Expert commentary: Neonatal and infant pain management research faces two major challenges: lack of clear biomarkers and very heterogeneous pharmacokinetics and pharmacodynamics of analgesics. There is a clear call for integral research addressing the multimodality of pain in this population and further developing population pharmacokinetic models towards physiology-based models.
Collapse
Affiliation(s)
- Manuel A Baarslag
- a Intensive Care and department of Pediatric Surgery , Erasmus MC-Sophia Children's Hospital , Rotterdam , the Netherlands
| | - Karel Allegaert
- a Intensive Care and department of Pediatric Surgery , Erasmus MC-Sophia Children's Hospital , Rotterdam , the Netherlands.,b Department of development and regeneration , KU Leuven , Leuven , Belgium
| | - John N Van Den Anker
- a Intensive Care and department of Pediatric Surgery , Erasmus MC-Sophia Children's Hospital , Rotterdam , the Netherlands.,c Division of Clinical Pharmacology , Children's National Health System , Washington , DC , USA.,d Division of Pediatric Pharmacology and Pharmacometrics , University of Basel Children's Hospital , Basel , Switzerland
| | - Catherijne A J Knibbe
- e Department of Clinical Pharmacy , St. Antonius Hospital , Nieuwegein , The Netherlands.,f Division of Pharmacology, Leiden Academic Center for Drug Research , Leiden University , Leiden , the Netherlands
| | - Monique Van Dijk
- a Intensive Care and department of Pediatric Surgery , Erasmus MC-Sophia Children's Hospital , Rotterdam , the Netherlands.,g Department of Pediatrics, division of Neonatology , Erasmus MC-Sophia Children's Hospital , Rotterdam , the Netherlands
| | - Sinno H P Simons
- g Department of Pediatrics, division of Neonatology , Erasmus MC-Sophia Children's Hospital , Rotterdam , the Netherlands
| | - Dick Tibboel
- a Intensive Care and department of Pediatric Surgery , Erasmus MC-Sophia Children's Hospital , Rotterdam , the Netherlands
| |
Collapse
|
19
|
Escontrela Rodríguez B, Gago Martínez A, Merino Julián I, Martínez Ruiz A. Spectral entropy in monitoring anesthetic depth. REVISTA ESPANOLA DE ANESTESIOLOGIA Y REANIMACION 2016; 63:471-478. [PMID: 26431743 DOI: 10.1016/j.redar.2015.07.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2015] [Revised: 06/30/2015] [Accepted: 07/14/2015] [Indexed: 06/05/2023]
Abstract
Monitoring the brain response to hypnotics in general anesthesia, with the nociceptive and hemodynamic stimulus interaction, has been a subject of intense investigation for many years. Nowadays, monitors of depth of anesthesia are based in processed electroencephalogram by different algorithms, some of them unknown, to obtain a simplified numeric parameter approximate to brain activity state in each moment. In this review we evaluate if spectral entropy suitably reflects the brain electric behavior in response to hypnotics and the different intensity nociceptive stimulus effect during a surgical procedure.
Collapse
Affiliation(s)
- B Escontrela Rodríguez
- Servicio Anestesiología y Reanimación, Hospital Universitario de Cruces, Barakaldo, Vizcaya, España.
| | - A Gago Martínez
- Servicio Anestesiología y Reanimación, Hospital Universitario de Cruces, Barakaldo, Vizcaya, España
| | - I Merino Julián
- Servicio Anestesiología y Reanimación, Hospital Universitario de Cruces, Barakaldo, Vizcaya, España
| | - A Martínez Ruiz
- Servicio Anestesiología y Reanimación, Hospital Universitario de Cruces, Barakaldo, Vizcaya, España; Facultad de Medicina, Universidad del País Vasco, Leioa, Vizcaya, España
| |
Collapse
|
20
|
Divak J, Frelich M, Dragula M, Tomaskova H. Monitoring the Depth of General Anaesthesia with Bis Monitor in the Course of Surgical Procedure in Children Shortens the Period of Recovery from General Anaesthesia. ACTA MEDICA MARTINIANA 2016. [DOI: 10.1515/acm-2016-0009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Monitoring the depth of general anaesthesia (GA) enables the anaesthetist to reach the optimal depth of GA, and thus prevent the occurrence of too deep or too shallow anaesthesia, together with all associated consequences. Anaesthesia, which is too shallow, increases the risk of perioperative awareness. In adult patients, the incidence of perioperative awareness is 0.1-0.2 % for the total number of GA procedures, in paediatric population, the clinical studies present the incidence of up to 5 % (1973), 0.8 % (2005) for the total number of GA procedures. Perioperative awareness is a serious complication, with possible psychological consequences for the patients, including post-traumatic stress disorder.
BIS monitoring is one of the possibilities how to assess the depth of GA. This technique is based on the assessment of EEG curve, when individual parameters of the EEG signal are, using mathematical methods, transformed into a dimensionless number, so-called bispectral index (BIS), the value of which is expressed on the scale from 0 to 100, and which reflects the depth of general anaesthesia.
This prospective randomized clinical trial has proven, on a group of 101 children that the use of BIS monitor in the course of GA shortens the period of recovery from general anaesthesia, however, it does not decrease the consumption of inhalation anaesthetics when compared to GA performed without BIS monitoring. The results of the study confirmed the importance of monitoring the depth of GA in patients with intravenous administration of Propofol. The authors have observed an inverse linear relation between the values of BIS and MAC (minimum alveolar concentration).
Collapse
Affiliation(s)
- J Divak
- Comenius University in Bratislava, Jessenius Faculty of Medicine in Martin and University Hospital, Department of Paediatric Surgery, Slovakia Republic
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital Ostrava, Slovakia Republic
| | - M Frelich
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital Ostrava, Slovakia Republic
| | - M Dragula
- Comenius University in Bratislava, Jessenius Faculty of Medicine in Martin and University Hospital, Department of Paediatric Surgery, Slovakia Republic
| | - H Tomaskova
- Centre of Epidemiological Research, Faculty of Medicine, University of Ostrava, Ostrava, Slovakia Republic
| |
Collapse
|
21
|
Poorun R, Hartley C, Goksan S, Worley A, Boyd S, Cornelissen L, Berde C, Rogers R, Ali T, Slater R. Electroencephalography during general anaesthesia differs between term-born and premature-born children. Clin Neurophysiol 2015; 127:1216-1222. [PMID: 26589678 PMCID: PMC4725254 DOI: 10.1016/j.clinph.2015.10.041] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 09/10/2015] [Accepted: 10/14/2015] [Indexed: 11/28/2022]
Abstract
Noxious stimulation during anaesthesia evokes a significant increase in delta activity that does not differ between term-born and premature-born children. Background EEG activity recorded during anaesthesia is different in premature-born and term-born children. EEG-derived measures that can be used to titrate anaesthetic depth may be influenced by premature birth.
Objectives Premature birth is associated with a wide range of complications in later life, including structural and functional neurological abnormalities and altered pain sensitivity. We investigated whether during anaesthesia premature-born children display different patterns of background EEG activity and exhibit increased responses to nociceptive stimuli. Methods We examined background EEG and time-locked responses to clinical cannulation in 45 children (mean age (±SD) at study: 4.9 (± 3.0) years) under sevoflurane monoanaesthesia maintained at a steady-state end-tidal concentration of 2.5%. 15 were born prematurely (mean gestational age at birth: 29.2 ± 3.9 weeks) and 30 were age-matched term-born children. Results Background levels of alpha and beta power were significantly lower in the premature-born children compared to term-born controls (p = 0.048). Clinical cannulation evoked a significant increase in delta activity (p = 0.032), which was not significantly different between the two groups (p = 0.44). Conclusions The results indicate that whilst under anaesthesia premature-born children display different patterns of background brain activity compared to term-born children. Significance As electrophysiological techniques are increasingly used by anaesthetists to gauge anaesthetic depth, differences in background levels of electrophysiological brain activity between premature and term-born children may be relevant when considering titration of anaesthetic dose.
Collapse
Affiliation(s)
- Ravi Poorun
- Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Caroline Hartley
- Department of Paediatrics, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Sezgi Goksan
- Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Alan Worley
- Department of Clinical Neurophysiology, Great Ormond Street Hospital for Children, London WC1N 3JH, UK
| | - Stewart Boyd
- Department of Clinical Neurophysiology, Great Ormond Street Hospital for Children, London WC1N 3JH, UK
| | - Laura Cornelissen
- Department of Anesthesiology, Perioperative and Pain Medicine, Boston Children's Hospital, Boston, MA 02115, USA
| | - Charles Berde
- Department of Anesthesiology, Perioperative and Pain Medicine, Boston Children's Hospital, Boston, MA 02115, USA
| | - Richard Rogers
- Nuffield Department of Anaesthetics, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Tariq Ali
- Nuffield Department of Anaesthetics, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Rebeccah Slater
- Department of Paediatrics, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, UK.
| |
Collapse
|
22
|
Valkenburg AJ, de Leeuw TG, van Dijk M, Tibboel D. Pain in Intellectually Disabled Children: Towards Evidence-Based Pharmacotherapy? Paediatr Drugs 2015; 17:339-48. [PMID: 26076801 PMCID: PMC4768233 DOI: 10.1007/s40272-015-0138-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
This critical opinion article deals with the challenges of finding the most effective pharmacotherapeutic options for the management of pain in intellectually disabled children and provides recommendations for clinical practice and research. Intellectual disability can be caused by a wide variety of underlying diseases and may be associated with congenital anomalies such as cardiac defects, small-bowel obstructions or limb abnormalities as well as with comorbidities such as scoliosis, gastro-esophageal reflux disease, spasticity, and epilepsy. These conditions themselves or any necessary surgical interventions are sources of pain. Epilepsy often requires chronic pharmacological treatment with antiepileptic drugs. These antiepileptic drugs can potentially cause drug-drug interactions with analgesic drugs. It is unfortunate that children with intellectual disabilities often cannot communicate pain to caregivers. Although these children are at high risk of experiencing pain, researchers nevertheless often have to exclude them from trials on pain management because of ethical considerations. We therefore make a plea for prescribers, researchers, patient organizations, pharmaceutical companies, and policy makers to study evidence-based, safe and effective pharmacotherapy in these children through properly designed studies. In the meantime, parents and clinicians must resort to validated pain assessment tools such as the revised FLACC scale.
Collapse
Affiliation(s)
- Abraham J Valkenburg
- Intensive Care and Department of Pediatric Surgery, Erasmus University Medical Center-Sophia Children's Hospital, Dr. Molewaterplein 60, 3015 GJ, Rotterdam, The Netherlands.
- Pain Expertise Center, Erasmus University Medical Center, Rotterdam, The Netherlands.
| | - Tom G de Leeuw
- Pain Expertise Center, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Anesthesiology, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Monique van Dijk
- Intensive Care and Department of Pediatric Surgery, Erasmus University Medical Center-Sophia Children's Hospital, Dr. Molewaterplein 60, 3015 GJ, Rotterdam, The Netherlands
- Division of Neonatology, Department of Pediatrics, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, The Netherlands
- Pain Expertise Center, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Dick Tibboel
- Intensive Care and Department of Pediatric Surgery, Erasmus University Medical Center-Sophia Children's Hospital, Dr. Molewaterplein 60, 3015 GJ, Rotterdam, The Netherlands
- Pain Expertise Center, Erasmus University Medical Center, Rotterdam, The Netherlands
| |
Collapse
|
23
|
Akeju O, Pavone KJ, Thum JA, Firth PG, Westover MB, Puglia M, Shank ES, Brown EN, Purdon PL. Age-dependency of sevoflurane-induced electroencephalogram dynamics in children. Br J Anaesth 2015; 115 Suppl 1:i66-i76. [PMID: 26174303 DOI: 10.1093/bja/aev114] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND General anaesthesia induces highly structured oscillations in the electroencephalogram (EEG) in adults, but the anaesthesia-induced EEG in paediatric patients is less understood. Neural circuits undergo structural and functional transformations during development that might be reflected in anaesthesia-induced EEG oscillations. We therefore investigated age-related changes in the EEG during sevoflurane general anaesthesia in paediatric patients. METHODS We analysed the EEG recorded during routine care of patients between 0 and 28 yr of age (n=54), using power spectral and coherence methods. The power spectrum quantifies the energy in the EEG at each frequency, while the coherence measures the frequency-dependent correlation or synchronization between EEG signals at different scalp locations. We characterized the EEG as a function of age and within 5 age groups: <1 yr old (n=4), 1-6 yr old (n=12), >6-14 yr old (n=14), >14-21 yr old (n=11), >21-28 yr old (n=13). RESULTS EEG power significantly increased from infancy through ∼6 yr, subsequently declining to a plateau at approximately 21 yr. Alpha (8-13 Hz) coherence, a prominent EEG feature associated with sevoflurane-induced unconsciousness in adults, is absent in patients <1 yr. CONCLUSIONS Sevoflurane-induced EEG dynamics in children vary significantly as a function of age. These age-related dynamics likely reflect ongoing development within brain circuits that are modulated by sevoflurane. These readily observed paediatric-specific EEG signatures could be used to improve brain state monitoring in children receiving general anaesthesia.
Collapse
Affiliation(s)
- O Akeju
- Department of Anesthesia, Critical Care and Pain Medicine Harvard Medical School, Boston, MA, USA
| | - K J Pavone
- Department of Anesthesia, Critical Care and Pain Medicine
| | - J A Thum
- Harvard Medical School, Boston, MA, USA Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology
| | - P G Firth
- Department of Anesthesia, Critical Care and Pain Medicine Department of Neurology, Massachusetts General Hospital, Boston, MA, USA
| | - M B Westover
- Department of Neurology, Massachusetts General Hospital, Boston, MA, USA Harvard Medical School, Boston, MA, USA
| | - M Puglia
- Department of Anesthesia, Critical Care and Pain Medicine Harvard Medical School, Boston, MA, USA
| | - E S Shank
- Department of Anesthesia, Critical Care and Pain Medicine Harvard Medical School, Boston, MA, USA
| | - E N Brown
- Department of Anesthesia, Critical Care and Pain Medicine Harvard Medical School, Boston, MA, USA Department of Brain and Cognitive Science Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology Institute for Medical Engineering and Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - P L Purdon
- Department of Anesthesia, Critical Care and Pain Medicine Harvard Medical School, Boston, MA, USA Department of Brain and Cognitive Science
| |
Collapse
|
24
|
Cornelissen L, Kim SE, Purdon PL, Brown EN, Berde CB. Age-dependent electroencephalogram (EEG) patterns during sevoflurane general anesthesia in infants. eLife 2015; 4:e06513. [PMID: 26102526 PMCID: PMC4502759 DOI: 10.7554/elife.06513] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 06/22/2015] [Indexed: 12/31/2022] Open
Abstract
Electroencephalogram (EEG) approaches may provide important information about developmental changes in brain-state dynamics during general anesthesia. We used multi-electrode EEG, analyzed with multitaper spectral methods and video recording of body movement to characterize the spatio-temporal dynamics of brain activity in 36 infants 0-6 months old when awake, and during maintenance of and emergence from sevoflurane general anesthesia. During maintenance: (1) slow-delta oscillations were present in all ages; (2) theta and alpha oscillations emerged around 4 months; (3) unlike adults, all infants lacked frontal alpha predominance and coherence. Alpha power was greatest during maintenance, compared to awake and emergence in infants at 4-6 months. During emergence, theta and alpha power decreased with decreasing sevoflurane concentration in infants at 4-6 months. These EEG dynamic differences are likely due to developmental factors including regional differences in synaptogenesis, glucose metabolism, and myelination across the cortex. We demonstrate the need to apply age-adjusted analytic approaches to develop neurophysiologic-based strategies for pediatric anesthetic state monitoring.
Collapse
Affiliation(s)
- Laura Cornelissen
- Department of Anesthesiology, Perioperative and Pain Medicine, Boston Children's Hospital, Boston, United States
| | - Seong-Eun Kim
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, United States
| | - Patrick L Purdon
- Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, Boston, United States
| | - Emery N Brown
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, United States
| | - Charles B Berde
- Department of Anesthesiology, Perioperative and Pain Medicine, Boston Children's Hospital, Boston, United States
| |
Collapse
|
25
|
McKeever S, Johnston L, Davidson AJ. Sevoflurane-induced changes in infants' quantifiable electroencephalogram parameters. Paediatr Anaesth 2014; 24:766-73. [PMID: 24612073 DOI: 10.1111/pan.12366] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/19/2014] [Indexed: 11/29/2022]
Abstract
BACKGROUND Electroencephalogram (EEG) based depth of anesthesia algorithms developed in the adult population have not demonstrated the same reliability when applied to infants. This may be due to frequency changes occurring in the EEG during development. Amplitude-integrated EEG (aEEG) is based primarily in the time domain and hence may have greater utility in infants. OBJECTIVE To investigate the relationship between age adjusted Minimal Alveolar Concentration (MAC) multiples and aEEG in children under 2 years of age. METHODS The aEEG, Spectral Edge Frequency 90% (SEF90) and Bispectral Index™ (BIS) were investigated in a prospective study of children <2 years of age. After anesthetic induction, and caudal block administration, EEG data were collected simultaneously with BrainZ BRM2™ and BIS™ monitors. Using a randomized crossover design, children received up to three age adjusted concentrations of sevoflurane: 0.75, 1 and 1.25 MAC. After 15 min of stable anesthetic delivery EEG readings were obtained. Prediction Probability (Pk ) and correlation coefficients were calculated for each EEG parameter. RESULTS From 51 children 102 stable anesthetics concentrations were obtained. For all age groups Pk of aEEG to multiple of age adjusted MAC was <0.72 indicating a poor predictive power for aEEG. In contrast for the SEF90 and BIS there was evidence for better predictive properties in children aged between 6 months and 2 years, with a Pk >0.81. CONCLUSION The aEEG is unlikely to be a useful measure of anesthesia depth in young children.
Collapse
Affiliation(s)
- Stephen McKeever
- Department of Anaesthesia and Pain Management, Royal Children's Hospital, Melbourne, Vic., Australia; Murdoch Childrens Research Institute, Melbourne, Vic., Australia; Melbourne School of Health Sciences, The University of Melbourne, Melbourne, Vic., Australia
| | | | | |
Collapse
|
26
|
Yılbaş AA, Ayhan B, Akıncı SB, Sarıcaoğlu F, Aypar Ü. The Effect of Different End-tidal Desflurane Concentrations on Bispectral Index Values in Normal Children and Children with Cerebral Palsy. Turk J Anaesthesiol Reanim 2013; 41:200-5. [PMID: 27366372 DOI: 10.5152/tjar.2013.33] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2012] [Accepted: 01/02/2013] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE In this study, we aimed to compare the effects of different intraoperative end-tidal desflurane concentrations on bispectral index (BIS) values in normal children and children with cerebral palsy. METHODS Twenty normal children (Group N) and 20 children with non-communicative/nonverbal cerebral palsy (Group CP), between 2 and 15 years of age, undergoing elective orthopaedic surgery were included in the study. Following premedication with midazolam, anaesthesia was induced by infusing 1% propofol at a rate of 200 mL hr(-1) until BIS reached 50. Heart rate, blood pressure and BIS values were recorded before and after the induction of anaesthesia, at steady-state end-tidal concentrations of 4% and 6% desflurane, and after emergence from anaesthesia. A p value <0.05 was considered significant in the statistical analyses, including Kolmogorov-Smirnov, t-test, paired samples t-test and chi-square test. RESULTS The time to extubation and eye opening after discontinuation of anaesthesia was longer in Group CP. BIS values before the induction of anaesthesia, at a steady-state end-tidal desflurane concentration of 4% and after emergence from the anaesthetic were significantly lower in Group CP. At a steady-state end-tidal desflurane concentration of 6%, BIS values were slightly lower in Group CP but this difference was not statistically significant. CONCLUSION Based on the data obtained, we concluded that BIS monitoring in children with cerebral palsy can be useful in terms of decreasing adverse effects and drug interactions due to multiple drug usage by reducing the use of anaesthetic agents and improving emergence from the anaesthetic.
Collapse
Affiliation(s)
- Aysun Ankay Yılbaş
- Department of Anaesthesiology and Reanimation, Akçaabat Haçkalı Baba State Hospital, Trabzon, Turkey
| | - Banu Ayhan
- Department of Anaesthesiology and Reanimation, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Seda Banu Akıncı
- Department of Anaesthesiology and Reanimation, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Fatma Sarıcaoğlu
- Department of Anaesthesiology and Reanimation, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Ülkü Aypar
- Department of Anaesthesiology and Reanimation, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| |
Collapse
|
27
|
BRESIL P, NIELSSON MS, MALVER LP, KRAEMER K, SCHJØRRING O, DETHLEFSEN C, LAMBERT PH. Impact of bispectral index for monitoring propofol remifentanil anaesthesia. A randomised clinical trial. Acta Anaesthesiol Scand 2013; 57:978-87. [PMID: 23855759 DOI: 10.1111/aas.12158] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/08/2013] [Indexed: 12/26/2022]
Abstract
BACKGROUND Previous research has shown that the use of the bispectral index (BIS) monitor to measure the depth of anaesthesia reduces the amount of anaesthetics administered and the recovery time from general anaesthesia. The effect of BIS on recovery from anaesthesia and consumption of anaesthetics in a paediatric population receiving total intravenous anaesthesia (TIVA) with propofol and remifentanil has not been studied. METHODS A single-blind, single-centre clinical trial. One hundred fifty-seven patients were enrolled. They were scheduled for ear, nose, and throat surgery and stratified according to age groups (1-3 years, 4-11 years, 12-17 years, 18-65 years) and type of operation, yielding a total of nine subgroups. Patients were randomly allocated to receive either a TIVA with propofol and remifentanil according to conventional clinical practice (control) or guided by BIS. Normalised propofol (μg/kg/min) and remifentanil (μg/kg/min) consumption and time to extubation (s) were the outcome measures. RESULTS Children aged 1-3 years in the BIS group had a longer time to extubation compared with controls (P: 0.04). Patients aged 12-17 years in the BIS group received higher maintenance infusion rates of propofol compared with controls (P = 0.02). No significant difference for the outcome variables was evidenced in the other age groups. CONCLUSION BIS monitoring for guidance of propofol-remifentanil anaesthesia does not result in reduced consumption of anaesthetics and does not reduce time to extubation in adult and children compared with conventional practice.
Collapse
Affiliation(s)
- P. BRESIL
- Department of Anaesthesia and Intensive Care Medicine; Aalborg University Hospital; Aalborg; Denmark
| | - M. S. NIELSSON
- Department of Anaesthesia and Intensive Care Medicine; Aalborg University Hospital; Aalborg; Denmark
| | - L. P. MALVER
- Department of Anaesthesia and Intensive Care Medicine; Aalborg University Hospital; Aalborg; Denmark
| | - K. KRAEMER
- Department of Anaesthesia and Intensive Care Medicine; Aalborg University Hospital; Aalborg; Denmark
| | - O. SCHJØRRING
- Department of Anaesthesia and Intensive Care Medicine; Aalborg University Hospital; Aalborg; Denmark
| | - C. DETHLEFSEN
- Department of Anaesthesia and Intensive Care Medicine; Aalborg University Hospital; Aalborg; Denmark
| | - P. H. LAMBERT
- Department of Anaesthesia and Intensive Care Medicine; Aalborg University Hospital; Aalborg; Denmark
| |
Collapse
|
28
|
McKeever S, Johnston L, Davidson AJ. An observational study exploring amplitude-integrated electroencephalogram and spectral edge frequency during paediatric anaesthesia. Anaesth Intensive Care 2012; 40:275-84. [PMID: 22417022 DOI: 10.1177/0310057x1204000210] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Processed electroencephalography is used in adults to guide anaesthesia, but the algorithms used may not apply to infants. Knowledge of infants' electroencephalogram (EEG) responses to anaesthetics is fragmentary. An earlier pilot study suggested amplitude-integrated EEG (aEEG) may be a useful measure of anaesthetic effect. The aim of this study was to determine how aEEG changes between awake and anaesthetised children of varying ages and to compare the response to that seen with Spectral Edge Frequency 90% (SEF90). A prospective observational study of children receiving a general anaesthetic was conducted. Anaesthetic regimen remained at the discretion of the treating anaesthetist. EEG data were collected using the BrainZ ReBrim(TM) monitor using forehead and biparietal montages. SEF90 and aEEG were compared across age groups, EEG montage and between awake and anaesthetised states. A total of 178 children (aged 24 days to 14 years) were recruited. All aEEGs were greater during anaesthesia compared to when awake and this difference varied with age. Only children older than two years showed lower SEF90 while anaesthetised compared to when awake. SEF90 from children younger than six months was higher during anaesthesia compared to when awake. Analysis of parietal and forehead EEG montages revealed age-related differences. These findings suggest that SEF90 and aEEG can discriminate between awake and anaesthetised states in older children. In younger children aEEG changes are less pronounced and SEF90 either cannot discriminate between states or responds paradoxically. The aEEG may be marginally better than other EEG parameters in measuring anaesthetic depth in children.
Collapse
Affiliation(s)
- S McKeever
- Department of Anaesthesia and Pain Management, Royal Children's Hospital, University of Melbourne, Victoria, Australia.
| | | | | |
Collapse
|
29
|
Yang J, Huang Z, Shu H, Chen Y, Sun X, Liu W, Dou Y, Xie C, Lin X, Hu Y. Improving successful rate of transcranial electrical motor-evoked potentials monitoring during spinal surgery in young children. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2011; 21:980-4. [PMID: 21874623 DOI: 10.1007/s00586-011-1995-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2010] [Revised: 05/16/2011] [Accepted: 08/16/2011] [Indexed: 10/17/2022]
Abstract
INTRODUCTION This prospective study was to investigate the successful rate of intraoperative motor evoked potentials (MEP) monitoring for children (<12 years old) with congenital scoliosis. MATERIALS AND METHODS A consecutive series of 27 young children (7 girls and 20 boys; from 1 to 11 years old) between September 2007 and November 2009, were enrolled to this study. 12 patients received general anesthesia based on TIVA, induced with propofol 2-4 mg/kg and fentanyl 3-5 µg/kg followed by a continuous infusion of propofol (20-150 µg/kg/min, at mean of 71.7 µg/kg/min). The other 15 patients received combined inhalation and intravenous anesthesia, induced with sevoflurane and fentanyl 3-5 µg/kg and maintained by sevoflurane (0.5-1%). The maintenance of anaesthesia management was performed with stable physiological parameters during surgery. RESULTS Intraoperative MEP monitoring was successfully performed in all patients, while SEP was successfully performed in 26 of 27 patients. There was no significant difference of successful rates between SEP and MEP monitoring (P > 0.05). As well, no difference in MEP successful rates was observed in two groups with different anesthetic techniques. No wake-up test and no post-operative neurological deficits occurred in this series of patients. CONCLUSION Low dose anesthesia by either TIVA with propofol or sevoflurane-based mixture anesthesia protocol can help the intraoperative spinal cord monitoring to successfully elicit MEP and perform reliable monitoring for patients below 12 years of age.
Collapse
Affiliation(s)
- Junlin Yang
- Department of Spine Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Abstract
The pharmacokinetics of propofol are relatively well described in the pediatric population. Recent work has confirmed the validity of allometric scaling for predicting propofol disposition across different species and for describing pediatric ontogenesis. In the first year of life, allometric models require adjustment to reflect ontogeny of maturation. Pharmacodynamic data for propofol in children are scarcer, because of practical difficulties in data collection and the limitations of currently available depth of anesthesia monitors for pediatric use. Hence, questions relating to the comparative sensitivity of children to propofol, and differences in time to peak effect relative to adults, remain unanswered. K(eo) half-lives have been determined for pediatric kinetic models using time to peak effect techniques but are not currently incorporated into commercially available target-controlled infusion pumps.
Collapse
Affiliation(s)
- Ann E Rigby-Jones
- Anaesthesia Research Group, Peninsula Medical School, Peninsula College of Medicine & Dentistry, University of Plymouth, Plymouth, UK.
| | | |
Collapse
|
31
|
Choi SR, Lim YH, Lee SC, Lee JH, Chung CJ. Spectral entropy monitoring allowed lower sevoflurane concentration and faster recovery in children. Acta Anaesthesiol Scand 2010; 54:859-62. [PMID: 20148772 DOI: 10.1111/j.1399-6576.2010.02212.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Anesthetic titration using spectral entropy monitoring reduces anesthetic requirements and shortens recovery in adult surgical patients. This study was performed to evaluate the effect of entropy monitoring on end-tidal sevoflurane concentration and recovery characteristics in pediatric patients undergoing sevoflurane anesthesia. METHODS Seventy-eight children (aged 3-12 years) scheduled for a tonsillectomy and/or an adenoidectomy were randomly divided into one of two groups: standard practice (Standard) or entropy-guided (Entropy). In the Standard group, sevoflurane was adjusted to maintain the heart rate and systolic blood pressure (BP) within 20% of the baseline values. In the Entropy group, sevoflurane was adjusted to achieve a state entropy of 40-50. We compared the entropy values, end-tidal sevoflurane concentration and recovery times between groups. RESULTS During maintenance of anesthesia, the entropy and BP values were higher in the Entropy group (P<0.05). The end-tidal sevoflurane concentration during maintenance was lower in the Entropy group (2.2 (0.3) vol%) compared with the Standard group (2.6 (0.4) vol%) (P<0.05). Recovery times were faster in the Entropy group (P<0.05). CONCLUSIONS Compared with standard practice, we found that entropy-guided anesthetic administration was associated with a reduced sevoflurane concentration and a slightly faster emergence and recovery in 3-12-year-old children.
Collapse
Affiliation(s)
- S R Choi
- Department of Anesthesiology and Pain Medicine, Dong-A University Hospital, Busan, South Korea
| | | | | | | | | |
Collapse
|
32
|
Batra YK, Rakesh SV, Panda NB, Lokesh VC, Subramanyam R. Intrathecal clonidine decreases propofol sedation requirements during spinal anesthesia in infants. Paediatr Anaesth 2010; 20:625-32. [PMID: 20642661 DOI: 10.1111/j.1460-9592.2010.03326.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Propofol is a popular agent for providing procedural sedation in pediatric population during lumbar puncture and spinal anesthesia. Adjuvants like clonidine and fentanyl are administered intrathecally to prolong the duration of spinal anesthesia and to provide postoperative analgesia. We studied the propofol requirement after intrathecal administration of clonidine or fentanyl in infants undergoing lower abdominal surgeries. METHODS Sixty-five ASA I infants undergoing elective lower abdominal surgery under spinal anesthesia were assigned into four groups in this prospective randomized double-blinded study. Group B received bupivacaine based on body weight (<5 kg = 0.5 mg kg(-1); 5-10 kg = 0.4 mg kg(-1)). Group BC received 1 microg kg(-1) of clonidine with bupivacaine, group BF received 1 microg kg(-1) of fentanyl with bupivacaine, and patients in group BCF received 1 microg kg(-1) each of clonidine and fentanyl with bupivacaine. A bolus of 2-3 mg kg(-1) of propofol bolus was administered for lumbar puncture. Sedation was assessed using a six-point sedation score (0-5) and a five-point reactivity score (0-4) which was based on a behavioral score. After achieving a sedation and reactivity score of 3-4, the patients were placed lateral in knee chest position and lumbar puncture performed and test drug administered. Further intraoperative sedation was maintained with an infusion of 25-50 microg kg(-1) min(-1) of propofol infusion. RESULTS The mean +/- SD infusion requirement of propofol decreased from 35.5 +/- 4.5 in group B to 33.4 +/- 5.4 microg kg(-1) min(-1) in group BF and further decreased to 16.7 +/- 6.2 microg kg(-1) min(-1) and 14.8 +/- 4.9 microg kg(-1) min(-1) in group BC and BCF, respectively. There were no statistically significant differences between BC and BCF groups. The mean sedation and reactivity scores were higher in groups BC and BCF when compared to groups B and BF. CONCLUSION Our study show that the requirement of propofol sedation reduces with intrathecal adjuvants. The reduction was significant with the addition of clonidine and clonidine-fentanyl combination as opposed to bupivacaine alone or with fentanyl. There was no significant difference in propofol infusion requirement with the use of bupivacaine alone or with fentanyl.
Collapse
Affiliation(s)
- Yatindra K Batra
- Department of Anaesthesia and Intensive Care, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
| | | | | | | | | |
Collapse
|
33
|
Schroeck H, Fecho K, Abode K, Bailey A. Vocal cord function and bispectral index in pediatric bronchoscopy patients emerging from propofol anesthesia. Pediatr Pulmonol 2010; 45:494-9. [PMID: 20425858 DOI: 10.1002/ppul.21207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE In children undergoing bronchoscopy for evaluation of stridor or respiratory symptoms, movement of the vocal cords is routinely assessed at the conclusion of flexible bronchoscopy with children still anesthetized. The effect of anesthesia on vocal cord function is not well described. This study aimed to characterize the relationship between depth of propofol anesthesia, as measured by Bispectral Index (BIS), and vocal cord movement in pediatric patients. METHODS Children between 6 months and 12 years of age presenting for diagnostic flexible bronchoscopy were enrolled in this prospective observational study. Anesthesia was maintained with a propofol infusion which was discontinued upon completion of the lower airway evaluation. An independent observer recorded the BIS score every 15 sec from discontinuation of propofol whereas the pulmonologist continued to observe vocal cord motion. BIS scores were also recorded for each observed clinical endpoint (paradoxical and normal vocal cord movement, complete vocal cord closure, and volitional movement). RESULTS Data were analyzed for 47 subjects. The BIS values increased significantly from the conclusion of the lower airway evaluation with return of normal vocal cord movement, complete vocal cord closure, and volitional movement (P < 0.0005). BIS readings were higher for patients younger than 2 years. Paradoxical vocal cord movement was documented in 10.6% of subjects, but resolved in all subjects. CONCLUSIONS Our findings suggest that return of vocal cord function during emergence from propofol anesthesia is related to decreasing anesthetic depth with complete vocal cord closure occurring at BIS values near those associated with volitional movement.
Collapse
Affiliation(s)
- Hedwig Schroeck
- Department of Anesthesiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7010, USA.
| | | | | | | |
Collapse
|
34
|
Bhardwaj N, Yaddanapudi S. A randomized trial of propofol consumption and recovery profile with BIS-guided anesthesia compared to standard practice in children. Paediatr Anaesth 2010; 20:160-7. [PMID: 20078813 DOI: 10.1111/j.1460-9592.2009.03240.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIM To evaluate the impact of bispectral index (BIS) monitoring on the consumption of propofol and recovery from anesthesia compared to the standard clinical practice in children. BACKGROUND Titrating propofol administration using BIS reduces its requirement and shortens the recovery from anesthesia in adults. However, there is still mixed evidence for utility of anesthesia depth monitors in reducing anesthesia requirement in children. METHODS/MATERIALS A prospective randomized study was conducted in 50 ASA I children of 2-12 years, randomly assigned into standard practice (SP) or BIS group. After induction with propofol, anesthesia was maintained with 150 microg x kg(-1) x min(-1) propofol infusion. The propofol infusion rate was altered by 20 microg x kg(-1) x min(-1) to maintain the systolic blood pressure within 20% of the baseline (SP group) or BIS value between 45 and 60 (BIS group). The rate of propofol infusion was reduced by 50% about 15 min before the end of surgery. The amount of propofol used and the times from stopping the propofol infusion to eye opening, extubation, response to commands and attaining Steward score of 6 were recorded. RESULTS There was no evidence of a difference in the mean propofol consumption in the two groups (BIS 232.6 +/- 136.7 mg, SP 250.8 +/- 118.2 mg). The intraoperative hemodynamics and BIS values were similar in the two groups. There was no evidence for a difference between groups in the mean times from termination of anesthetic to eye opening, extubation, response to commands and to achieve a Steward Recovery score of 6. CONCLUSIONS Our study showed no benefit of BIS-guided propofol administration on anesthetic consumption or recovery compared to standard anesthetic practice.
Collapse
Affiliation(s)
- Neerja Bhardwaj
- Department of Anaesthesia and Intensive Care, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
| | | |
Collapse
|
35
|
Valkenburg AJ, de Leeuw TG, Tibboel D, Weber F. Lower bispectral index values in children who are intellectually disabled. Anesth Analg 2009; 109:1428-33. [PMID: 19843782 DOI: 10.1213/01ane.0b013e3181ba43b2] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Very few data are available on the use of bispectral index (BIS) monitoring in children who are intellectually disabled. Epileptiform electroencephalogram activity, underlying cerebral pathology, or anticonvulsant/spasmolytic therapy might influence BIS monitoring. Our aim in this exploratory study was to first compare BIS values at 4 different stages of anesthesia between intellectually disabled children and controls. Our second aim was to investigate the discriminative properties of BIS between consciousness and unconsciousness for intellectually disabled children and for controls. METHODS Eighteen intellectually disabled children and 35 control children, aged 2-13 yr, were included. BIS values, landmark events, and standard monitoring values of vital functions were recorded throughout the whole procedure. The performance of BIS in distinguishing between a conscious and unconscious state was assessed from receiver operating characteristic curves. RESULTS Median (interquartile range) BIS values for the intellectually disabled group were significantly lower than those for controls in the awake state (72 [48-77] vs 97 [84-98], P < 0.001), during stable intraoperative anesthesia (34 [21-45] vs 43 [33-52], P = 0.02), and during return of consciousness (59 [36-68] vs 73 [64-78], P = 0.009). The discriminative properties of the BIS monitor for the state of consciousness were comparable between the 2 groups according to the receiver operating characteristic curves. Nevertheless, the optimal cutoff BIS value for discrimination between conscious and unconscious state was 28 points lower for the intellectually disabled group. CONCLUSIONS We advise anesthesiologists to be alert to possible lower BIS values in intellectually disabled children. There is a risk that they will inadvertently misinterpret the state of consciousness in intellectually disabled children. New multicenter studies must find the optimal manner of evaluating (un)consciousness in intellectually disabled patients with documented and confirmed specific etiologies of their intellectual disability.
Collapse
Affiliation(s)
- Abraham J Valkenburg
- Departments of Pediatric Surgery, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, The Netherlands.
| | | | | | | |
Collapse
|
36
|
Münte S, Klockars J, van Gils M, Hiller A, Winterhalter M, Quandt C, Gross M, Taivainen T. The Narcotrend Index Indicates Age-Related Changes During Propofol Induction in Children. Anesth Analg 2009; 109:53-9. [DOI: 10.1213/ane.0b013e3181a49c98] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
37
|
Lerman J, Jöhr M. Inhalational anesthesia vs total intravenous anesthesia (TIVA) for pediatric anesthesia. Paediatr Anaesth 2009; 19:521-34. [PMID: 19453585 DOI: 10.1111/j.1460-9592.2009.02962.x] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Jerrold Lerman
- Women's and Children's Hospital of Buffalo, 219 Bryant St, Buffalo 14222, NY, USA.
| | | |
Collapse
|