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Anesthesia and cognitive function

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https://www.readbyqxmd.com/read/28990533/blood-brain-barrier-disruption-leads-to-postoperative-cognitive-dysfunction
#1
Bin Wang, Siyuan Li, Xipeng Cao, Xinghui Dou, Jingzhu Li, Ling Wang, Mingshan Wang, Yanlin Bi
BACKGROUND: Postoperative cognitive dysfunction (POCD) has received considerable attention as one of the main postoperative complications. The underlying mechanism of POCD in elderly subjects has not been fully elucidated to date. The central nervous system (CNS) is isolated from the bloodstream by the blood brain barrier (BBB) that consists of endothelial cells, capillary blood vessels and the tight junctions. The tight junctions carry out significant biological functions that are associated with the CNS and the blood circulation...
October 9, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/28986748/anesthetic-isoflurane-or-desflurane-plus-surgery-differently-affects-cognitive-function-in-alzheimer-s-disease-transgenic-mice
#2
Huihui Miao, Yuanlin Dong, Yiying Zhang, Hui Zheng, Yuan Shen, Gregory Crosby, Deborah J Culley, Edward R Marcantonio, Zhongcong Xie
Anesthesia/surgery could be associated with cognitive impairment and Alzheimer's disease neuropathogenesis. However, whether surgery under different anesthetics has different effects on cognitive function remains largely unknown. We therefore set out to compare effects of anesthetic isoflurane or desflurane plus surgery on cognitive function and hippocampus levels of synaptic marker (postsynaptic density-95 and synaptophysin) and ATP. Five-month-old AD Transgenic (Tg) (FAD5X) and wild-type male mice received isoflurane or desflurane plus abdominal surgery...
October 6, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28984099/postoperative-delirium-and-postoperative-cognitive-dysfunction-updates-in-pathophysiology-potential-translational-approaches-to-clinical-practice-and-further-research-perspectives
#3
Marco Cascella, Maria R Muzio, Sabrina Bimonte, Arturo Cuomo, Jan G Jakobsson
Postoperative delirium, the onset of confusion/delirium during the early postoperative phase, is the most common post-operative complication in older adults and represents a medical emergency that requires immediate assessment and treatment. On the other hand, the term postoperative cognitive decline or dysfunction refers to a wide spectrum of clinical conditions featuring a decline in a variety of neuropsychological domains including memory, executive functioning, and speed of processing emerging week to months after anesthesia and surgery...
October 4, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28979702/chikusetsu-saponin-iva-attenuates-isoflurane-induced-neurotoxicity-and-cognitive-deficits-via-sirt1-erk1-2-in-developmental-rats
#4
Xi Fang, Qiang Han, Shiyong Li, Yilin Zhao, Ailin Luo
Inhalation anesthetics isoflurane may increase the risk of neurotoxicity and cognitive deficiency at postnatal and childhood. Chikusetsu saponin IVa (chIV) is a plant extract compound, which could possessed extensive pharmacological actions of central nervous system, cardia-cerebrovascular system, immunologic system and treatment and prevention of tumor. In our study, we investigated the neuroprotective effect of chIV on isoflurane-induced hippocampal neurotoxicity and cognitive function impairment in neonatal rats...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28968276/sevoflurane-acts-on-ubiquitination-proteasome-pathway-to-reduce-postsynaptic-density-95-protein-levels-in-young-mice
#5
Han Lu, Ning Liufu, Yuanlin Dong, Guanghong Xu, Yiying Zhang, Liqi Shu, Sulpicio G Soriano, Hui Zheng, Buwei Yu, Zhongcong Xie
BACKGROUND: Children with multiple exposures to anesthesia and surgery may have an increased risk of developing cognitive impairment. Sevoflurane, a commonly used anesthetic in children, has been reported to decrease levels of postsynaptic density 95 protein. However, the upstream mechanisms and downstream consequences of the sevoflurane-induced reduction in postsynaptic density 95 protein levels remains largely unknown. We therefore set out to assess whether sevoflurane acts on ubiquitination-proteasome pathway to facilitate postsynaptic density 95 protein degradation...
October 2, 2017: Anesthesiology
https://www.readbyqxmd.com/read/28962135/postoperative-benefits-of-dexmedetomidine-combined-with-flurbiprofen-axetil-after-thyroid-surgery
#6
Xing-Dui Ma, Bei-Ping Li, De-Ling Wang, Wen-Sheng Yang
The present study determined the effect of dexmedetomidine (Dex) combined with flurbiprofen axetil (FA) on analgesia, immune response, and preservation of cognitive function in patients subjected to general anesthesia. We recruited 100 patients with thyroid surgery and randomly divided them into four groups: Dex (D), FA (F), Dex combined with FA (DF), and saline control (C). The extubation and recovery times for Groups D and DF were significantly longer than for Groups F and C. After extubation, the heart rate and mean arterial pressure for Groups F, D, and DF were significantly lower than for Group C, and data for Group DF was significantly lower than for Group F...
September 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28960172/resting-state-functional-magnetic-resonance-imaging-for-surgical-planning-in-pediatric-patients-a-preliminary-experience
#7
Jarod L Roland, Natalie Griffin, Carl D Hacker, Ananth K Vellimana, S Hassan Akbari, Joshua S Shimony, Matthew D Smyth, Eric C Leuthardt, David D Limbrick
OBJECTIVE Cerebral mapping for surgical planning and operative guidance is a challenging task in neurosurgery. Pediatric patients are often poor candidates for many modern mapping techniques because of inability to cooperate due to their immature age, cognitive deficits, or other factors. Resting-state functional MRI (rs-fMRI) is uniquely suited to benefit pediatric patients because it is inherently noninvasive and does not require task performance or significant cooperation. Recent advances in the field have made mapping cerebral networks possible on an individual basis for use in clinical decision making...
September 29, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28944872/isoflurane-exposure-regulates-the-cell-viability-and-bdnf-expression-of-astrocytes-via-upregulation-of-trek%C3%A2-1
#8
Cui-Hong Zhou, Ya-Hong Zhang, Fen Xue, Shan-Shan Xue, Yun-Chun Chen, Ting Gu, Zheng-Wu Peng, Hua-Ning Wang
Neonatal isoflurane exposure in rodents disrupts hippocampal cognitive functions, including learning and memory, and astrocytes may have an important role in this process. However, the molecular mechanisms underlying this disruption are not fully understood. The present study investigated the role of TWIK‑related K+ channel (TREK‑1) in isoflurane‑induced cognitive impairment. Lentiviruses were used to overexpress or knockdown TREK‑1 in astrocytes exposed to increasing concentrations of isoflurane or O2 for 2 h...
September 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28927746/-proposal-of-screening-for-diffuse-low-grade-gliomas-in-the-population-from-20-to-40years
#9
Emmanuel Mandonnet, Luc Taillandier, Hugues Duffau
Diffuse low-grade gliomas (DLGG) are cerebral tumors occurring in young adults, with an inescapable progression to higher grade of malignancy, resulting in functional impairment and death. DLGG evolve in several phases: an asymptomatic period despite a slow radiological growth; a period in which inaugural symptoms occur, usually epilepsy with possible mild cognitive disorders; then a phase with malignant transformation generating disabling neurological deficits; and ultimately the terminal stage. Early maximal surgical resection significantly increases overall survival while preserving quality of life...
September 15, 2017: La Presse Médicale
https://www.readbyqxmd.com/read/28926473/hydrogen-gas-attenuates-sevoflurane-neurotoxicity-through-inhibiting-nuclear-factor-%C3%AE%C2%BA-light-chain-enhancer-of-activated-b-cells-signaling-and-proinflammatory-cytokine-release-in-neonatal-rats
#10
Yiwei Shi, Gang Wang, Jinyuan Li, Wenli Yu
Anesthesia neurotoxicity in developing brain has gained increasing attention. However, knowledge regarding its mitigating strategies remains scant. Sevoflurane, a commonly used anesthetic, is responsible for learning and memory deficits in neonates. Molecular hydrogen is reported to be a potential neuroprotective agent because of its antioxidative and anti-inflammatory activities. This study aimed to investigate the effect of hydrogen gas on sevoflurane neurotoxicity. The newborn rats were treated with sevoflurane and/or hydrogen gas for 2 h...
September 18, 2017: Neuroreport
https://www.readbyqxmd.com/read/28914327/repeated-2-sevoflurane-administration-in-7%C3%A2-and-60-day-old-rats-neurotoxicity-and-neurocognitive-dysfunction
#11
He Huang, Cun-Ming Liu, Jie Sun, Wen-Jie Jin, Yu-Qing Wu, Jing Chen
BACKGROUND: Sevoflurane is one of the most widely used inhalation anesthetics in pediatric anesthesia. A large number of studies have demonstrated that repeated treatment with high concentrations or long durations of sevoflurane anesthesia during the neonatal period can induce neuroapoptosis and long-term learning disability. In clinical practice, we observed that a subset of patients underwent minor surgery under sevoflurane anesthesia more than once from birth to adolescence. Therefore, this research was conducted to investigate whether a 2% concentration of sevoflurane (clinically relevant usage of sevoflurane) for 1 h (a short duration) can induce neuroapoptosis and neurocognitive dysfunction in adolescent rats that received sevoflurane (2% for 1 h) during the neonatal period...
September 15, 2017: Der Anaesthesist
https://www.readbyqxmd.com/read/28891911/delineating-the-trajectory-of-cognitive-recovery-from-general-anesthesia-in-older-adults-design-and-rationale-of-the-torie-trajectory-of-recovery-in-the-elderly-project
#12
Joshua S Mincer, Mark G Baxter, Patrick J McCormick, Mary Sano, Arthur E Schwartz, Jess W Brallier, Heather G Allore, Bradley N Delman, Margaret C Sewell, Prantik Kundu, Cheuk Ying Tang, Angela Sanchez, Stacie G Deiner
BACKGROUND: Mechanistic aspects of cognitive recovery after anesthesia and surgery are not yet well characterized, but may be vital to distinguishing the contributions of anesthesia and surgery in cognitive complications common in the elderly such as delirium and postoperative cognitive dysfunction. This article describes the aims and methodological approach to the ongoing study, Trajectory of Recovery in the Elderly (TORIE), which focuses on the trajectory of cognitive recovery from general anesthesia...
September 7, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28882161/general-anesthesia-versus-local-anesthesia-in-stereotaxy-galaxy-for-parkinson-s-disease-study-protocol-for-a-randomized-controlled-trial
#13
R A Holewijn, D Verbaan, R M A de Bie, P R Schuurman
BACKGROUND: The aim of the study is to investigate if deep brain stimulation (DBS) in the subthalamic nucleus (STN) for Parkinson's disease (PD) under general anesthesia further improves outcome by lessening postoperative cognitive, mood, and behavioral adverse effects; shorten surgical time and hospital admittance; and produce comparable symptomatic and functional improvement to surgery under local anesthesia. METHODS/DESIGN: The study will be a single-center, prospective, randomized, open-label, blinded endpoint trial comparing DBS under general anesthesia with DBS under local anesthesia...
September 7, 2017: Trials
https://www.readbyqxmd.com/read/28881691/critical-role-of-matrix-metallopeptidase-9-in-postoperative-cognitive-dysfunction-and-age-dependent-cognitive-decline
#14
Jiangjiang Bi, Weiran Shan, Ailin Luo, Zhiyi Zuo
BACKGROUND: Postoperative cognitive dysfunction (POCD) is a significant clinical syndrome. Neuroinflammation is an important pathological process for POCD. However, it is not clear how systemic inflammation induced by surgery on peripheral tissues or organs is transmitted into the brain. We determined whether matrix metallopeptidase 9 (MMP9), a protein that can increase blood-brain barrier permeability, is critical in this transmission. The role of MMP9 in age-dependent cognitive decline was also determined...
August 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28866718/hypersomnia-and-cognitive-impairment-in-a-patient-with-bipolar-disorder-a-case-report
#15
Katarzyna Szaulińska, Anna Antosik-Wójcińska, Ewa Paszkowska, Łukasz Święcicki, Marek Jarema, Adam Wichniak
OBJECTIVES: Obstructive sleep apnea (OSA) is a common clinical problem that can have serious health consequences and complicate the course of mental disorders. It is estimated that the prevalence of sleep apnea in patients with bipolar disorder can be 21-47.5%. Some symptoms of OSA are the same as the symptoms of depression: daytime drowsiness, cognitive dysfunction, decreased drive, apathy, depressed mood, anhedonia. METHODS: We present a case of a patient whose depressive symptoms persisted despite repeated changes of pharmacological treatment and were exacerbated by severe sleep disorder...
June 18, 2017: Psychiatria Polska
https://www.readbyqxmd.com/read/28842280/electroacupuncture-alleviates-surgery-induced-cognitive-dysfunction-by-increasing-%C3%AE-7-nachr-expression-and-inhibiting-inflammatory-pathway-in-aged-rats
#16
Pei-Rong Liu, Ying Zhou, Yu Zhang, Shu Diao
Postoperative cognitive dysfunction (POCD) is a common disorder of cognitive functions in aged patients following anesthesia and surgery. α7-nicotinic acetylcholine receptors (α7-nAChR) plays a regulatory role in cognitive processes and is involved in cognitive deficits. This study aims to observe the effect of electroacupuncture (EA) on the cognitive function in aged POCD rats, and its regulation on expressions of hippocampal α7-nAChR and proinflammatory factors. Ninety healthy Sprague-Dawley male aged rats were randomly divided into three groups (each n=30): control group (sham operation), model group (partial hepatectomy), and electroacupuncture (EA) group...
October 17, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28840256/-neurophysiological-monitoring-during-surgical-procedures
#17
REVIEW
P Michels, A Bräuer, M Bauer, M Söhle
The application of intraoperative neurophysiological monitoring (IONM) is gaining more and more importance in daily clinical practice. The use of IONM allows the localization of neural structures and to control functioning of the peripheral and central nervous systems in anesthetized patients. This enables surgeons to identify and to protect neural structures and cerebral areas. The use of IONM also enables anesthesiologists to adjust anesthesia and cardiopulmonary therapy to the individual needs of the patient...
August 24, 2017: Der Anaesthesist
https://www.readbyqxmd.com/read/28800981/near-infrared-spectroscopy-in-adult-cardiac-surgery-patients-a-systematic-review-and-meta-analysis
#18
Matthew J Chan, Tricia Chung, Neil J Glassford, Rinaldo Bellomo
OBJECTIVES: To identify the normal baseline preoperative range of cerebral tissue oxygen saturation (SctO2) derived using near-infrared spectroscopy (NIRS) and the efficacy of perioperative interventions designed to modulate SctO2 in cardiac surgical patients. DESIGN: Systematic review and meta-analysis of relevant randomized controlled trials (RCTs) extracted from the Medline, Embase, and Cochrane Central Register of Controlled Trials databases. SETTING: Hospitals performing cardiac surgery...
August 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28777716/research-priorities-in-subspecialty-palliative-care-policy-initiatives
#19
Lynn F Reinke, Diane E Meier
Palliative care demonstrably improves quality of life for the seriously ill in a manner that averts preventable health crises and their associated costs. Because of these outcomes, palliative care is now broadening its reach beyond hospitals, and hospice care for those near death, to patients and their families living in the community with chronic multimorbidities that have uncertain or long expected survival. In this article, we address research needed to enable policies supportive of palliative care access and quality, including changes in regulatory, accreditation, financing, and training approaches in the purview of policy makers...
August 2017: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/28745667/-prevention-and-correction-of-cognitive-dysfunction-after-general-anesthesia
#20
A Yu Novikov, V A Kovalev, N V Vinichuk, Yu A Chernyh, I E Golub, L V Sorokina
AIM: To evaluate clinical efficacy of intraoperative use of cytoflavin in the prevention and correction of cognitive functions in surgical patients with no history of neurological and psychosomatic disorders. MATERIAL AND METHODS: The study included 60 female patients who underwent surgery on the thyroid gland. Patients were stratified into two equal groups matched for main indices. Patients of the main group received infusions of cytoflavin (20 ml in 200 ml of 5% glucose solution)...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
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