Commercial brain function monitors for depth of anesthesia have been available for more than 2 decades; there are currently more than 10 devices on the market. Advances in this field are evidenced by updated versions of existing monitors, development of new monitors, and increasing research unveiling the mechanisms of anesthesia on the brain. Electroencephalography signal processing forms an integral part of the technology supporting the brain function monitors for derivation of a depth-of-anesthesia index. This article aims to provide a better understanding of the technology and functionality behind these monitors. This review will highlight the general design principles of these devices and the crucial stages in electroencephalography signal processing and classification, with a focus on the key mathematical techniques used in algorithm development for final derivation of the index representing anesthetic state. We will briefly discuss the advantages and limitations of this technology in the clinical setting as a tool in our repertoire used for optimizing individualized patient care. Also included is a table describing 10 available commercial depth-of-anesthesia monitors.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1213/ANE.0000000000002331 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Sedoanalgesia with dexmedetomidine in daily anesthesia practices: a prospective randomized controlled trial.
BMC Anesthesiol
January 2025
Department of Anesthesiology and Reanimation, Faculty of Medicine, Van Yüzüncü Yıl University, Van, Turkey.
Background: Patient safety is important in daily anesthesia practices, and providing deep anesthesia is difficult. Current debates on the optimal anesthetic agents highlight the need for safer alternatives. This study was justified by the need for safer and more effective anesthetic protocols for outpatient hysteroscopic procedures, particularly those conducted outside the operating room.
View Article and Find Full Text PDFThe effect of sciatic nerve block on sciatic nerve depth and pain level in patients with ankle fracture based on different approaches under ultrasound guidance.
J Foot Ankle Surg
January 2025
Anesthesia Surgery Center, the Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia Autonomous Region, 010000, China. Electronic address:
To investigate the clinical efficacy of using different approach sciatic nerve blocks on the sciatic nerve depth and pain degree in patients with ankle fracture. A retrospective analysis was conducted on 151 patients with ankle fractures who were admitted to the hospital from May 2020 to May 2023. The patients were divided into a control group (n=76) using the greater trochanteric plane approach (GTA) and an observation group (n=75) using the suprapopliteal approach (PA).
View Article and Find Full Text PDFClients' experiences in their first entry to the operating room: a descriptive phenomenological study.
Perioper Med (Lond)
January 2025
Department of Nursing, School of Nursing and Midwifery, Kermanshah University of Medical Sciences, Kermanshah, Iran.
Background: The unfamiliar atmosphere of the operating room, waiting for anesthesia, and the process of surgery and anesthesia are some of the factors causing fear and anxiety in patients. It leads to physical and psychological pressure on patients. Better understanding of patients' feelings, beliefs, or fears and recording their experiences for optimal care after surgery is helpful.
View Article and Find Full Text PDFPharmacokinetics and pharmacodynamics of ciprofol after continuous infusion in elderly patients.
BMC Anesthesiol
January 2025
Department of Anesthesiology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), 54 Youdian Road, Hangzhou, 310006, China.
Background: Ciprofol, a novel intravenous anesthetic, which has primarily been used for the induction and maintenance of general anesthesia in adults, is characterized by rapid onset, short duration of action, and quick and smooth recovery. However, the pharmacokinetic characteristics of continuous infusions and the correlation between the plasma concentration and the bispectral index (BIS) in elderly patients are still unknown.
Method: In this randomized, controlled study, thirty elderly patients (62-78 years old) undergoing elective gastrointestinal tumor resection were treated with propofol (N = 15) or ciprofol (N = 15) as sedatives during anesthesia.
Somatostatin-expressing neurons in the medial prefrontal cortex promote sevoflurane anesthesia in mice.
Anesthesiology
January 2025
Key Laboratory of Brain Science, Key Laboratory of Anesthesia and Organ Protection of Ministry of Education (In Cultivation), Zunyi Medical University, Zunyi, 563100, Guizhou Province, China.
Background: The medial prefrontal cortex plays a crucial role in regulating consciousness. However, the specific functions of its excitatory and inhibitory networks during anesthesia remain uncertain. Here we explored the hypothesis that somatostatin interneurons in the medial prefrontal cortex enhance the effects of sevoflurane anesthesia by increasing GABA transmission to pyramidal neurons.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!