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postoperative cognitive dysfunction

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https://www.readbyqxmd.com/read/28724382/activation-of-cannabinoid-receptor-type-2-attenuates-surgery-induced-cognitive-impairment-in-mice-through-anti-inflammatory-activity
#1
Lingling Sun, Rui Dong, Xin Xu, Xi Yang, Mian Peng
BACKGROUND: Neuroinflammation plays a major role in postoperative cognitive dysfunction (POCD). Accumulated evidence indicates that cannabinoid receptor type 2 (CB2R) can mediate anti-inflammatory and immunomodulatory effects in part by controlling microglial activity. However, the impact of CB2R on postoperative cognition has not been investigated. We hypothesized that CB2R is involved in surgery-induced cognitive impairment in adult mice. METHODS: Adult C57BL/6 mice were subjected to intramedullary fixation surgery for tibial fracture under isoflurane anesthesia and CB2R agonist (JWH133) or CB2R antagonist (AM630) treatment...
July 19, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28698347/carbon-dioxide-surgical-field-flooding-and-aortic-no-touch-off-pump-coronary-artery-bypass-grafting-to-reduce-neurological-injuries-after-surgical-coronary-revascularisation-canon-protocol-for-a-randomised-controlled-investigator-and-patient-blinded-single
#2
Szwed Krzysztof, Pawliszak Wojciech, Serafin Zbigniew, Kowalewski Mariusz, Tomczyk Remigiusz, Perlinski Damian, Szwed Magdalena, Tomaszewska Marta, Anisimowicz Lech, Borkowska Alina
INTRODUCTION: Neurological injuries remain a major concern following coronary artery bypass grafting (CABG) that offsets survival benefit of CABG over percutaneous coronary interventions. Among numerous efforts to combat this issue is the development of off-pump CABG (OPCABG) that obviates the need for extracorporeal circulation and is associated with improved neurological outcomes. The objective of this study is to examine whether the neuroprotective effect of OPCABG can be further pronounced by the use of two state-of-the-art operating techniques...
July 10, 2017: BMJ Open
https://www.readbyqxmd.com/read/28697315/an-update-on-anesthetics-and-impact-on-the-brain
#3
Vincenzo Fodale, Vincenzo F Tripodi, Olivia Penna, Fausto Famà, Francesco Squadrito, Epifanio Mondello, Antonio David
While anesthetics are indispensable clinical tools and generally considered safe and effective, a growing concern over the potential neurotoxicity of anesthesia or specific anesthetic agents has called into question the safety of general anesthetics, especially when administered at extremes of age. Areas covered: This article reviews and updates research findings on the safety of anesthesia and anesthetics in terms of long-term neurotoxicity, with particular focus on postoperative cognitive dysfunctions, Alzheimer's disease and dementias, developing brain, post-operative depression and autism spectrum disorder...
July 11, 2017: Expert Opinion on Drug Safety
https://www.readbyqxmd.com/read/28684969/electroacupuncture-alleviates-postoperative-cognitive-dysfunction-in-aged-rats-by-inhibiting-hippocampal-neuroinflammation-activated-via-microglia-tlrs-pathway
#4
Pei-Pei Feng, Pu Deng, Li-Hua Liu, Qi Ai, Jie Yin, Zhe Liu, Gai-Mei Wang
Neuroinflammation has been suggested to be involved in the pathogenesis of postoperative cognitive dysfunction (POCD). Electroacupuncture (EA) is an irreplaceable method in traditional Chinese medicine that is used for treating neurodegenerative diseases in clinical and experimental studies. The aim of this study was to examine whether EA improves cognitive dysfunction caused by surgery and to investigate the pathological mechanism of TLR2 and TLR4 in the hippocampus of aged rats. A rat model of POCD was established and treated with EA or minocycline...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28672938/edaravone-improves-spatial-memory-and-modulates-endoplasmic-reticulum-stress-mediated-apoptosis-after-abdominal-surgery-in-mice
#5
Ayong Tian, Hong Ma, Rongwei Zhang, Yong Cui, Chengfu Wan
Patients who receive major surgery often develop postoperative cognitive dysfunction (POCD); however, there is a lack of effective management as the pathogenesis of this disorder has not been fully elucidated. The neuroprotective effects of edaravone have been characterized in both in vitro cultured cells and in experimental animal models. The present study aimed to determine the potential role of edaravone in surgery-induced cognitive decline in mice. Animals were assigned to three groups: Control group (n=32), where mice received local anesthesia; surgery group (n=32), where mice underwent abdominal surgery under anesthesia; and edaravone group (n=32), where mice received abdominal surgery and were administered with edaravone (3 mg/kg)...
July 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28669717/mirnas-may-regulate-gabaergic-transmission-associated-genes-in-aged-rats-with-anesthetics-induced-recognition-and-working-memory-dysfunction
#6
Ligang Shan, Duo Ma, Chengshen Zhang, Wei Xiong, Yi Zhang
BACKGROUND: Isoflurane and sevoflurane are widely used anesthetics in surgery and administration of these anesthetics could lead to postoperative cognitive dysfunction (POCD). However, the mechanisms remain unclear. METHODS: Aged Wistar rats were exposed to isoflurane and sevoflurane for 2 or 4 hours. Recognition memory and spatial working memory were measured using Novel object recognition (NOR) and Y-maze test, respectively. Apoptotic cells were detected by TUNEL staining...
June 29, 2017: Brain Research
https://www.readbyqxmd.com/read/28661921/fragmented-sleep-enhances-postoperative-neuroinflammation-but-not-cognitive-dysfunction-really
#7
Song Huang, Gen Wei, Fuzhou Hua
No abstract text is available yet for this article.
August 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28658163/effects-of-preconditioning-of-electro-acupuncture-on-postoperative-cognitive-dysfunction-in-elderly-a-prospective-randomized-controlled-trial
#8
RANDOMIZED CONTROLLED TRIAL
Qi Zhang, Ya-Nan Li, Yang-Yang Guo, Chun-Ping Yin, Fang Gao, Xi Xin, Shu-Ping Huo, Xiu-Li Wang, Qiu-Jun Wang
Electro-acupuncture is a burgeoning treatment using the needle inserting into the body acupoints and the low-frequency pulse current being electrified by an electric acupuncture machine. This study was designed to evaluate the effects of preconditioning of electro-acupuncture on postoperative cognitive dysfunction in elderly.Ninety patients scheduled spine surgery were randomly assigned into 2 groups using a random number table: control group (group C) and electro-acupuncture group (group EA). In group EA, electro-acupuncture was applied on Baihui, Dazhui, and Zusanli acupoints 30 minutes before anesthesia...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28621687/differentially-expressed-lncrnas-and-mirnas-with-associated-cerna-networks-in-aged-mice-with-postoperative-cognitive-dysfunction
#9
Changwei Wei, Ting Luo, Shanshan Zou, Xiaobin Zhou, Wenzhen Shen, Xiaolin Ji, Qi Li, Anshi Wu
Postoperative cognitive dysfunction (POCD) is a common postoperative complication observed in elderly patients. Using microarray analyses, we comprehensively compared long non-coding RNA (lncRNA), messenger RNA (mRNA), and microRNA (miRNA) expression profiles in hippocampal tissues from a mouse model of POCD and control mice. A total of 175 lncRNAs, 117 mRNAs, and 26 miRNAs were differentially expressed between POCD and control mice. Gene ontology (GO) and KEGG pathway enrichment analyses were performed to explore the principal functions of dysregulated genes...
June 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28617376/-postoperative-cerebral-dysfunction
#10
N V Tsygan, M M Odinak, G G Khubulava, V N Tsygan, A S Peleshok, R V Andreev, E S Kurasov, I V Litvinenko
AIM: To study the structure, risk factors and methods of prevention of postoperative brain dysfunction on the example of coronary artery bypass surgery with cardiopulmonary bypass. MATERIAL AND METHODS: The study included 77 patients who undergone elective coronary artery bypass surgery at the beating heart (22 patients) or with cardiopulmonary bypass (55 patients, including 24 patients, who received cerebroprotective treatment with cytoflavin in the preoperative period)...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28607335/the-surgical-stress-response-and-the-potential-role-of-preoperative-glucocorticoids-on-post-anesthesia-care-unit-recovery
#11
Kristin J Steinthorsdottir, Henrik Kehlet, Eske K Aasvang
The immediate postoperative course in the post-anaesthesia care unit (PACU) remains a challenge across surgical procedures. Postoperative pain, sedation/cognitive dysfunction, nausea and vomiting (PONV), circulatory and respiratory problems and orthostatic intolerance constitute the bulk of the difficulties that may delay the postoperative recovery. A common feature in the observed organ dysfunctions is the inflammatory response to surgery during the acute postoperative recovery phase, suggesting that control of inflammation may improve outcomes and reduce complications...
June 12, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28599629/dose-dependent-effects-of-intravenous-methoxamine-infusion-during-hip-joint-replacement-surgery-on-postoperative-cognitive-dysfunction-and-blood-tnf-%C3%AE-level-in-elderly-patients-a-randomized-controlled-trial
#12
Shenghui Sun, Defeng Sun, Lin Yang, Jun Han, Ruochuan Liu, Lijie Wang
BACKGROUND: Postoperative cognitive dysfunction (POCD), common in elderly patients, is thought to be closely associated with intraoperative instability of hemodynamics and excessive excretion of tumor necrosis factor-α (TNF-α). Methoxamine is a blood-pressure increasing drug commonly used for maintaining intraoperative hemodynamics. Methoxamine potentially promotes TNF-α expression, leading to an increased risk of POCD. This study aimed to investigate the dose-dependent effect of methoxamine on the incidence of early POCD and blood TNF-α level...
June 9, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28596476/rnase-alleviates-neurological-dysfunction-in-mice-undergoing-cardiac-arrest-and-cardiopulmonary-resuscitation
#13
Ye Ma, Chan Chen, Shu Zhang, Qiao Wang, Hai Chen, Yuanlin Dong, Zheng Zhang, Yan Li, Zhendong Niu, Tao Zhu, Hai Yu, Bin Liu
Cardiac arrest (CA) is one of the leading lethal factors. Despite cardiopulmonary resuscitation (CPR) procedure has been consecutively improved and lots of new strategies have been developed, neurological outcome of the patients experienced CPR is still disappointing. Ribonuclease (RNase) has been demonstrated to have neuroprotective effects in acute stroke and postoperative cognitive impairment, possibly through acting against endogenous RNA that released from damaged tissue. However, the role of RNase in post-cardiac arrest cerebral injury is unknown...
May 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28594795/-assessing-efficacy-of-carotid-endarterectomy-by-means-of-intraoperative-flowmetry
#14
V A Luk'ianchikov, A S Tokarev, N A Polunina, O Iu Nakhabin, E V Udodov, V A Dalibaldian, A V Sytnik, V V Krylov
AIM: The study was aimed at determining volumetric blood flow velocity (VBFV) through the internal carotid artery (ICA) and assessing functional outcomes of treatment of patients, taking into consideration the dynamics of VBFV before and after the operation. PATIENTS AND METHODS: The study comprised a total of 53 patients subjected to examination of VBFV through the ICA before and after carotid endarterectomy (CEA) assessed by means of flowmetry. Neurological deficit was evaluated by means of the NIHS Scale (the M NIHSS prior to operation equalling 2...
2017: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/28593326/intraoperative-infusion-of-dexmedetomidine-for-prevention-of-postoperative-delirium-and-cognitive-dysfunction-in-elderly-patients-undergoing-major-elective-noncardiac-surgery-a-randomized-clinical-trial
#15
Stacie Deiner, Xiaodong Luo, Hung-Mo Lin, Daniel I Sessler, Leif Saager, Frederick E Sieber, Hochang B Lee, Mary Sano, Christopher Jankowski, Sergio D Bergese, Keith Candiotti, Joseph H Flaherty, Harendra Arora, Aryeh Shander, Peter Rock
Importance: Postoperative delirium occurs in 10% to 60% of elderly patients having major surgery and is associated with longer hospital stays, increased hospital costs, and 1-year mortality. Emerging literature suggests that dexmedetomidine sedation in critical care units is associated with reduced incidence of delirium. However, intraoperative use of dexmedetomidine for prevention of delirium has not been well studied. Objective: To evaluate whether an intraoperative infusion of dexmedetomidine reduces postoperative delirium...
June 7, 2017: JAMA Surgery
https://www.readbyqxmd.com/read/28587818/astrocyte-derived-ccl2-participates-in-surgery-induced-cognitive-dysfunction-and-neuroinflammation-via-evoking-microglia-activation
#16
Jiawen Xu, Hongquan Dong, Qingqing Qian, Xiang Zhang, Yiwei Wang, Wenjie Jin, Yanning Qian
Neuroinflammation induced by peripheral trauma plays a key role in the development of postoperative cognitive dysfunction (POCD). Substantial evidence points to reactive glia as a pivotal factor during the inflammation process. However, little is known about the functional interactions between astrocytes and microglia. Recent evidence suggests the involvement of the CCL2-CCR2 pathway in CNS inflammation-related diseases. Our previous studies have suggested that astrocyte-derived CCL2 can induce microglial activation in vitro...
June 3, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28567586/tumor-related-neurocognitive-dysfunction-in-patients-with-diffuse-glioma-a-systematic-review-of-neurocognitive-functioning-prior-to-anti-tumor-treatment
#17
REVIEW
Emma van Kessel, Anniek E Baumfalk, Martine J E van Zandvoort, Pierre A Robe, Tom J Snijders
Deficits in neurocognitive functioning (NCF) frequently occur in glioma patients. Both treatment and the tumor itself contribute to these deficits. Data about the role of the tumor are scarce, because NCF has mostly been studied postoperatively. We aimed to summarize data on pre-treatment NCF in glioma patients and to determine the overall and domain-specific prevalence of neurocognitive dysfunction. We searched PubMed and Embase according to PRISMA-P protocol for studies that evaluated pre-treatment NCF in glioma patients (1995-November 2016) and extracted information about NCF...
May 31, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28551697/association-between-abo-blood-type-and-postoperative-cognitive-dysfunction-in-elderly-patients-undergoing-unilateral-total-hip-arthroplasty-surgery-in-china
#18
Jie Li, Jun Zhou, Yunqiang Wan, Li Liu, Cehua Ou
BACKGROUND Postoperative cognitive dysfunction (POCD) is a postoperative complication after surgery and anesthesia. Whether ABO blood types are associated with POCD in elderly patients undergoing unilateral total hip arthroplasty surgery in China is unclear. MATERIAL AND METHODS Firstly, 142 elderly patients were divided into a POCD group and a non-POCD group according to the Mini Mental State Examination (MMSE) scores and ABO blood types were analyzed. Secondly, according to ABO blood type, the selected 226 patients were divided into 4 groups: type A group, type B group, type AB group, and type O group...
May 28, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28537663/the-significance-of-s100%C3%AE-protein-on-postoperative-cognitive-dysfunction-in-patients-who-underwent-single-valve-replacement-surgery-under-general-anesthesia
#19
X He, L-J Wen, C Cui, D-R Li, J-F Teng
OBJECTIVE: To analyze the effect of S100β protein on postoperative cognitive dysfunction (POCD) in patients who underwent single valve replacement surgery. PATIENTS AND METHODS: Mini Mental State Examination (MMSE) and Montreal Cognitive Assessment (MoCA) were applied to evaluate 178 patients who underwent single valve replacement surgery under general anesthesia from June 2014 to December 2015. Patients were assessed 1 day before surgery and on postoperative days 2 and 9...
May 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28533746/intraoperative-frontal-alpha-band-power-correlates-with-preoperative-neurocognitive-function-in-older-adults
#20
Charles M Giattino, Jacob E Gardner, Faris M Sbahi, Kenneth C Roberts, Mary Cooter, Eugene Moretti, Jeffrey N Browndyke, Joseph P Mathew, Marty G Woldorff, Miles Berger
Each year over 16 million older Americans undergo general anesthesia for surgery, and up to 40% develop postoperative delirium and/or cognitive dysfunction (POCD). Delirium and POCD are each associated with decreased quality of life, early retirement, increased 1-year mortality, and long-term cognitive decline. Multiple investigators have thus suggested that anesthesia and surgery place severe stress on the aging brain, and that patients with less ability to withstand this stress will be at increased risk for developing postoperative delirium and POCD...
2017: Frontiers in Systems Neuroscience
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