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https://www.readbyqxmd.com/read/29327638/hybrid-and-surgical-procedures-for-the-treatment-of-persistent-and-longstanding-persistent-atrial-fibrillation
#1
Jose M Sanchez, Ghannam Al-Dosari, Sherman Chu, Ramin Beygui, Tobias Deuse, Nitish Badhwar, Randall J Lee
Atrial fibrillation (AF) is the most common cardiac arrhythmia. The incidence of AF increases with age and is associated with increased stroke, heart failure and mortality. Persistent and long standing persistent AF is difficult to treat and often refractory to medical therapy and catheter ablation. Areas covered: This article reviews the historical development of the surgical Cox-MAZE procedure and current hybrid and minimally invasive surgical approaches for the treatment of persistent and long standing persistent AF...
January 12, 2018: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/29323756/juvenile-taiep-rats-have-shorter-dendritic-trees-in-the-dorsal-field-of-the-hippocampus-without-spatial-learning-disabilities
#2
Adriana B Silva, Dolores A Bravo-Duran, Jose R Eguibar, Carmen Cortes
Myelin mutant taiep rats show a progressive demyelination in the central nervous system due to an abnormal accumulation of microtubules in the cytoplasm and the processes on their oligodendrocytes. Demyelination is associated with electrophysiological alterations and the mutant had a progressive astrocytosis. The illness is associated with change in cytokine levels and in the expression of different nitric oxide synthase and concomitantly lipoperoxidation in several areas of the brain. However, until now there has been no detailed anatomical analysis of neurons in this mutant...
January 11, 2018: Synapse
https://www.readbyqxmd.com/read/29312724/long-term-results-of-radiofrequency-maze-procedure-for-persistent-atrial-fibrillation-with-concomitant-mitral-surgery
#3
Chia-Chen Wu, Jen-Ping Chang, Mien-Cheng Chen, Cheng-I Cheng, Wen-Jung Chung
Background: The radiofrequency (RF) maze procedure can effectively restore sinus rhythm in most patients with persistent atrial fibrillation (AF) and mitral disease. However, long-term results and predictors for late AF recurrence are still under investigation. Methods: From December 1995 to November 2011, 207 consecutive patients with persistent AF and mitral disease underwent RF maze procedure and concomitant mitral surgery. The mean age was 54±12.4 year-old...
December 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29274913/oral-anticoagulation-may-not-be-necessary-for-patients-discharged-in-sinus-rhythm-after-the-cox-maze-iv-procedure
#4
Takashi Murashita, J Scott Rankin, Lawrence M Wei, Harold G Roberts, Mohamad A Alkhouli, Vinay Badhwar
OBJECTIVES: Oral anticoagulants have inherent risks. In the absence of clear evidence, anticoagulant use after surgical ablation for atrial fibrillation remains variable. This study examined patient outcomes with and without oral anticoagulants after successful surgical ablation. METHODS: From October 2011 to April 2016, 239 consecutive patients underwent biatrial Cox Maze IV operations for persistent atrial fibrillation. All patients received endocardial left atrial appendage obliteration...
December 6, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29250276/comparison-of-the-efficancy-and-complication-rates-of-the-hybrid-maze-complete-cox-maze-and-catheter-ablation-in-the-treatment-of-atrial-fibrillation
#5
Ivo K Genev, Lindsey A Tompkins, Manorama M Khare, Farhad Farokhi
Introduction: Atrial fibrillation is the most common cardiac arrhythmia in the United States. It has been associated with a reduction in patient quality of life and more serious complications such as stroke and heart failure. The aim of this study was to compare the efficacy of commonly performed invasive procedures in keeping patients in normal sinus rhythm. Methods and Results: A retrospective chart review was performed on all patients who underwent primary radiofrequency catheter ablation, the complete Cox-maze, or the hybrid maze at OSF Saint Anthony Medical Center between January 2010 and December 2013 (n=140)...
February 2017: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/29248960/predictors-of-the-need-for-pacemaker-implantation-after-the-cox-maze-iv-procedure-for-atrial-fibrillation
#6
Naoki Masaki, Shunsuke Kawamoto, Naotaka Motoyoshi, Osamu Adachi, Kiichiro Kumagai, Satoshi Kawatsu, Yukihiro Hayatsu, Shintaro Katahira, Katsuhiro Hosoyama, Masatoshi Akiyama, Yoshikatsu Saiki
PURPOSE: The Cox maze IV (CMIV) procedure is being used increasingly frequently for surgical ablation of atrial fibrillation (AF). This study aimed to identify the risk factors of the need for postoperative pacemaker implantation (PMI) after CMIV. METHODS: Preoperative, intraoperative, and postoperative data were retrospectively collected from 67 consecutive patients who underwent CMIV at our institution; 7 (10.4%) required PMI (as a treatment of brady AF or sick sinus syndrome)...
December 16, 2017: Surgery Today
https://www.readbyqxmd.com/read/29246544/long-term-outcome-following-concomitant-mitral-valve-surgery-and-cox-maze-procedure-for-atrial-fibrillation
#7
Niv Ad, Sari D Holmes, Paul S Massimiano, Anthony J Rongione, Lisa M Fornaresio
OBJECTIVE: Atrial fibrillation (AF) is associated with increased early and long-term morbidity/mortality following valve surgery. This study examined long-term influence of concomitant full Cox maze (CM) and mitral valve procedures on freedom from atrial arrhythmia and stroke. METHODS: This sample comprised patients who underwent CM with a mitral valve procedure (N = 473). Data on rhythm, medication status, and clinical events captured according to Heart Rhythm Society guidelines at 6, 9, 12, 18, and 24 months and yearly thereafter up to 7 years...
November 14, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29229533/xanthoceraside-attenuates-amyloid-%C3%AE-peptide1-42-induced-memory-impairments-by-reducing-neuroinflammatory-responses-in-mice
#8
Yue Qi, Xue-Fei Ji, Tian-Yan Chi, Peng Liu, Ge Jin, Qian Xu, Qing Jiao, Li-Hua Wang, Li-Bo Zou
Xanthoceraside, a novel triterpenoid saponin extracted from the husks of Xanthoceras sorbifolia Bunge, has neuroprotective effects in vivo and anti-inflammatory properties in vitro. However, the exact mechanism of xanthoceraside on anti-amyloid beta (Aβ)-induced neuroinflammatory responses has not been elucidated. Therefore, we used intracerebroventricular injection of amyloid 1-42 (Aβ1-42) to establish a mouse model to test the effects of xanthoceraside on Aβ-induced cognitive impairments and the TLR2/NF-κB and MAPK pathways...
December 8, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29208407/dehydrocavidine-attenuates-d-galactose-induced-learning-and-memory-impairment-in-rats
#9
Peng Fu, Qing Zhang, Dong-Ye Yi, Ahmed Abdelmaksoud, Qin Huang, Hong-Yang Zhao, Wei Xiang, Nan-Xiang Xiong
OBJECTIVE: Dehydrocavidine (DEH) is the major component of a plant corydalis saxicola Bunting, which is used to treat the patients with hepatic disorders, there is still no report about the effect of DEH on the brain disorder. In this study, the effect and mechanism of DEH on D-galactose (D-gala) induced learning and memory impairment in rats was investigated. METHODS: A learning and memory impairment rat model was employed by chronic intraperitoneal injection of D-gala and intragastric administration of DEH, then Morris water maze test was used to investigate the effect of DEH on learning and memory impairment, Golgi stain and biochemical methods, real time PCR were used to investigate underlying mechanism...
December 2, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/29170048/neuroprotective-effect-of-berberine-against-environmental-heavy-metals-induced-neurotoxicity-and-alzheimer-s-like-disease-in-rats
#10
Hend M Hussien, Aml Abd-Elmegied, Doaa A Ghareeb, Hani S Hafez, Hany E A Ahmed, Nehad Abd El-Moneam
Heavy metals are reported as neurodegenerative disorders progenitor. They play a role in the precipitation of abnormal β-amyloid protein and hyper-phosphorylated tau, the main hallmarks of Alzheimer's disease (AD). The present study aimed to validate the heavy metals-induced Alzheimer's-like disease in rats as an experimental model of AD and explore the therapeutic effect of berberine via tracking its effect on the oxidative stress-inflammatory pathway. Alzheimer's-like disease was induced in rats orally by a mixture of aluminium, cadmium and fluoride for three months, followed by berberine treatment for another one month...
November 21, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29146293/andrographolide-a-promising-therapeutic-agent-negatively-regulates-glial-cell-derived-neurodegeneration-of-prefrontal-cortex-hippocampus-and-working-memory-impairment
#11
Sudeshna Das, K P Mishra, Lilly Ganju, S B Singh
Over activation of glial cell derived innate immune factors induces neuro-inflammation that results in neurodegenerative disease, like working memory impairment. In this study, we have investigated the role of andrographolide, a major constituent of Andrographis paniculata plant, in reduction of reactive glial cell derived working memory impairment. Real time PCR, Western bloting, flow cytometric and immunofluorescence studies demonstrated that andrographolide inhibited lipopolysaccharide (LPS)-induced overexpression of HMGB1, TLR4, NFκB, COX-2, iNOS, and release of inflammatory mediators in primary mix glial culture, adult mice prefrontal cortex and hippocampus region...
November 8, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/29138143/minimally-invasive-stand-alone-cox-maze-procedure-for-persistent-and-long-standing-persistent-atrial-fibrillation-perioperative-safety-and-5-year-outcomes
#12
Niv Ad, Sari D Holmes, Ted Friehling
BACKGROUND: Rhythm control is challenging in patients with extended atrial fibrillation (AF) duration and persistent/long-standing persistent AF. Among surgical approaches to treat AF, the Cox maze procedure performed using alternative energy sources remains superior to other beating heart techniques. We examined permanence of safety and success for the on-pump, minimally invasive, stand-alone Cox maze procedure 5 years after surgery. METHODS AND RESULTS: Stand-alone, right 5 cm minithoracotomy, Cox maze III/IV procedure for nonparoxysmal AF was conducted in 133 patients (mean follow-up=65±34 months)...
November 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29129405/neurogenesis-and-morphological-neural-alterations-closely-related-to-amyloid-%C3%AE-peptide-25-35-induced-memory-impairment-in-male-rats
#13
Eleazar Ramírez, Liliana Mendieta, Gonzalo Flores, I Daniel Limón
Memory impairment by the Amyloid-β 25-35 (Aβ25-35) peptide in animal models has provided an understanding of the causes behind the similar deterioration that occurs in Alzheimer's disease. However, it is uncertain if a decrease of dendritic spines and neurogenesis conduces to cognitive impairment by an impairment in the retrieval of stored memory. The aim of this study was to evaluate the consequences of impairment on spatial memory caused by the administration of the Aβ25-35 peptide in the hippocampus, which is associated whit morphological changes and neurogenesis in the dentate gyrus (DG)...
November 6, 2017: Neuropeptides
https://www.readbyqxmd.com/read/29102211/cox-maze-iv-procedure-is-effective-but-is-it-for-everybody
#14
EDITORIAL
G Hossein Almassi
No abstract text is available yet for this article.
October 5, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29056264/performance-of-the-cox-maze-iv-procedure-is-associated-with-improved-long-term-survival-in-patients-with-atrial-fibrillation-undergoing-cardiac-surgery
#15
Farah N Musharbash, Matthew R Schill, Laurie A Sinn, Richard B Schuessler, Hersh S Maniar, Marc R Moon, Spencer J Melby, Ralph J Damiano
OBJECTIVE: Atrial fibrillation (AF) is associated with an increased mortality risk. The Cox-maze IV procedure (CM4) performed concomitantly with other cardiac procedures has been shown to be effective for restoring sinus rhythm. However, few data have been published on the late survival of patients undergoing a concomitant CM4. METHODS: Patients undergoing cardiac surgery were retrospectively reviewed from 2001 to 2016 (n = 10,859). Patients were stratified into 3 groups: patients with a history of AF receiving a concomitant CM4 (CM4; n = 438), patients with a history of AF unaddressed during surgery (Untreated AF; n = 1510), and patients without AF history (No AF; n = 8911)...
September 27, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29040533/hippocampal-phosphorylated-tau-induced-cognitive-decline-dendritic-spine-loss-and-mitochondrial-abnormalities-in-a-mouse-model-of-alzheimer-s-disease
#16
Ramesh Kandimalla, Maria Manczak, Xiangling Yin, Rui Wang, P Hemachandra Reddy
The purpose of our study was to understand the toxic effects of hippocampal phosphorylated tau in tau mice. Using rotarod and Morris Water Maze tests, immunoblotting & immunofluorescence, Golgi-cox staining and transmission electron microscopy, we assessed cognitive behavior, measured protein levels of mitochondrial dynamics, MAP2, total & phosphorylated tau, and quantified dendritic spines and mitochondrial number and length in 12-month-old tau mice with P301L mutation. Mitochondrial function was assessed by measuring the levels of H2O2, lipid peroxidation, cytochrome oxidase activity and mitochondrial ATP...
October 12, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/29039252/western-style-diet-induces-object-recognition-deficits-and-alters-complexity-of-dendritic-arborization-in-the-hippocampus-and-entorhinal-cortex-of-male-rats
#17
Kathryn S Sarfert, Melina L Knabe, Nicole S Gunawansa, Sarah N Blythe
OBJECTIVE: Research demonstrates a link between diet-induced obesity and cognitive impairments; however, no studies have utilized the Sholl analysis to assess changes in dendritic arborization as a possible cause of obesity-induced memory deficits. Therefore, the purpose of this study was to examine the effect of a Western-style diet (WSD) on memory and dendritic complexity of male Sprague-Dawley rats. METHODS: Male Sprague-Dawley rats (n = 18) were fed either a control or WSD...
October 17, 2017: Nutritional Neuroscience
https://www.readbyqxmd.com/read/28947201/concomitant-ablation-for-atrial-fibrillation-during-septal-myectomy-in-patients-with-hypertrophic-obstructive-cardiomyopathy
#18
Alexander V Bogachev-Prokophiev, Alexander V Afanasyev, Sergei I Zheleznev, Alexei N Pivkin, Michael S Fomenko, Ravil M Sharifulin, Alexander M Karaskov
OBJECTIVE: The appearance of atrial fibrillation is associated with significant clinical deterioration in patients with obstructive hypertrophic cardiomyopathy; therefore, maintenance of sinus rhythm is desirable. Guidelines and most articles have reported the results of catheter ablation and pharmacologic atrial fibrillation treatment; nevertheless, data regarding concomitant procedures during septal myectomy are limited. The aim of this study was to assess the outcomes of concomitant atrial fibrillation treatment in patients with obstructive hypertrophic cardiomyopathy...
September 1, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28944180/surgical-management-of-atrial-fibrillation-at-the-time-of-septal-myectomy
#19
Eduard Quintana, James L Cox
Atrial fibrillation (AF) may appear during the natural clinical course of hypertrophic cardiomyopathy (HCM). It is regarded as a complication of HCM and is a marker of advanced disease. AF is more likely to occur in untreated, obstructive HCM. Unfortunately, this represents a turning point that puts patients at increased risk of further disability, stroke and death. The presence of obstruction is an indication to proceed with septal myectomy to improve or resolve symptoms by ameliorating diastolic dysfunction...
July 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28941603/proanthocyanidin-prevents-lipopolysaccharide-induced-depressive-like-behavior-in-mice-via-neuroinflammatory-pathway
#20
Xi Jiang, Ji Liu, Qian Lin, Kaili Mao, Furong Tian, Changfeng Jing, Chongbin Wang, Lianshu Ding, Cong Pang
Recent studies have demonstrated neuroinflammation and increased cytokine levels are associated with depression. Aware of the efficacy the potential anti-inflammatory and antioxidative activity of proanthocyanidin, the present study was designed to investigate the effects of proanthocyanidin on lipopolysaccharide (LPS)-induced depressive-like behavior in mice. In depressive behavior tests, the immobility time of forced swimming test (FST) and tail suspension test (TST) was increased when mice were administrated a single dose of LPS (0...
September 21, 2017: Brain Research Bulletin
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