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Cox Maze

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https://www.readbyqxmd.com/read/28893662/spatial-memory-related-brain-activity-in-normally-reared-and-different-maternal-separation-models-in-rats
#1
María Banqueri, Marta Méndez, Jorge L Arias
Early life stress comprises a wide range of adverse events that can occur in the subject's early developmental stages: from child abuse to rodent repeated maternal separation models. This study used young adult male Wistar rats that were maternally raised (AFR), maternally separated from post-natal day (PND) 1 to PND10 (MS10), or maternally separated from PND1 to PND21 (MS21), to assess the effects of maternal separation on spatial learning and memory using the Morris Water Maze (MWM). We also performed quantitative cytochrome oxidase (COx) histochemistry on some selected brain areas in order to find out whether maternal separation affects brain energy metabolism...
September 8, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28797677/emergence-of-atrioventricular-nodal-reentry-tachycardia-after-surgical-or-catheter-ablation-for-atrial-fibrillation-are-we-creating-the-arrhythmia-substrate
#2
Jorge Romero, Saurabh Kumar, Fujii Akira, David F Briceño, Usha B Tedrow, Laurence Epstein, Roy John, William G Stevenson, Gregory F Michaud
BACKGROUND: Atrioventricular nodal reentry tachycardia (AVNRT) is common in adults and often involves reentry through ≥2 atrioventricular nodal-atrial connections. Although AVNRT can be a trigger for atrial fibrillation (AF), we have observed new-onset AVNRT after AF ablation procedures. OBJECTIVE: The purpose of this study was to determine whether ablation involving the septum or proximal coronary sinus (CS) during AF ablation may create a substrate favorable for AVNRT...
August 8, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28774344/late-outcome-of-surgical-radiofrequency-ablation-for-persistent-valvular-atrial-fibrillation-in-china-a-single-center-study
#3
Hailong Cao, Yunxing Xue, Qing Zhou, Minggang Yu, Chenbin Tang, Dongjin Wang
BACKGROUND: Atrial fibrillation (AF) adversely affects surgical outcomes of cardiac valve surgery. Surgical ablation is an effective way to treat valvular AF. The aim of this study was to evaluate the late outcome of surgical radiofrequency ablation and explore the risk factors of AF recurrence in Chinese patients undergoing cardiac valve surgery. METHODS: Three hundred ninety six consecutive patients with persistent valvular AF were enrolled in this study. They underwent concomitant modified Maze IV and were completed follow-ups...
August 3, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28769765/mesenchymal-stem-cell-derived-extracellular-vesicles-ameliorates-hippocampal-synaptic-impairment-after-transient-global-ischemia
#4
Mingyang Deng, Han Xiao, Hainan Zhang, Hongling Peng, Huan Yuan, Yunxiao Xu, Guangsen Zhang, Zhiping Hu
Recent studies have found that administration of stem cells or extracellular vehicles (EVs) derived from stem cells exert neuroprotective effects after transient global ischemia. However, the underlying mechanisms of this effect remain unclear, especially at the level of synaptic functions. In this study, we compared the suppressive effects on cyclooxygenase-2 (COX-2) upregulation by EVs derived from bone marrow mesenchymal stem cells (BMSC-EV), adipose tissue MSC (AdMSC-EV) and serum (serum-EV). Then we examined whether BMSC-EVs could restore functional integrity of synaptic transmission and plasticity...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28716085/the-protective-effect-of-fermented-curcuma-longa-l-on-memory-dysfunction-in-oxidative-stress-induced-c6-gliomal-cells-proinflammatory-activated-bv2-microglial-cells-and-scopolamine-induced-amnesia-model-in-mice
#5
Cheong-Su Eun, Jong-Soon Lim, Jihye Lee, Sam-Pin Lee, Seun-Ah Yang
BACKGROUND: Curcuma longa L. is a well-known medicinal plant that has been used for its anti-cancer, neuroprotective, and hepatoprotective effects. However, the neuroprotective effect of fermented C. longa (FCL) has not been reported. Therefore, in this study, the effectiveness of FCL for the regulation of memory dysfunction was investigated in two brain cell lines (rat glioma C6 and murine microglia BV2) and scopolamine-treated mice. METHODS: C. longa powder was fermented by 5% Lactobacillus plantarum K154 containing 2% (w/v) yeast extract at 30 °C for 72 h followed by sterilization at 121 °C for 15 min...
July 17, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28711573/distribution-and-impact-of-comorbidities-on-survival-and-leukemic-transformation-in-myeloproliferative-neoplasm-associated-myelofibrosis-a-retrospective-cohort-study
#6
Justyna Bartoszko, Tony Panzarella, Caroline Jane McNamara, Anthea Lau, Aaron D Schimmer, Andre C Schuh, Hassan Sibai, Dawn Maze, Karen W L Yee, Rebecca Devlin, Vikas Gupta
BACKGROUND: We sought to describe the distribution and impact of comorbidities on outcomes in patients with myelofibrosis, a disease characterized by aberrant bone marrow function with eventual fibrosis. Comorbidities were scored using the Adult Comorbidity Evaluation-27 (ACE-27) and the Hematopoietic Cell Transplant Comorbidity Index (HCT-CI), in which a score ≥ 3 indicates severe comorbidities. PATIENTS AND METHODS: We conducted a retrospective study of 306 patients with a confirmed diagnosis of myelofibrosis...
June 29, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/28681457/pregnancy-improves-cognitive-deficit-and-neuronal-morphology-atrophy-in-the-prefrontal-cortex-and-hippocampus-of-aging-spontaneously-hypertensive-rats
#7
Verónica R Cabrera-Pedraza, María de Jesús Gómez-Villalobos, Fidel de la Cruz, Patricia Aguilar-Alonso, Sergio Zamudio, Gonzalo Flores
It is well known that the survival is higher in women compared to men and women have a better survival prognosis than men in some pathologies such as vascular dementia (VD). Our previous reports showed that the spontaneously hypertensive (SH) rat, an animal model of VD, exhibited dendritic atrophy of pyramidal neurons of the dorsal hippocampus (DH) and the prefrontal cortex (PFC) at 8 months of age. Cerebrolysin (CBL), a neurotrophic peptide mixture, reduces dendritic atrophy and improves the memory process in aged rats...
July 6, 2017: Synapse
https://www.readbyqxmd.com/read/28678926/late-results-of-cox-maze-iii-procedure-in-patients-with-atrial-fibrillation-associated-with-structural-heart-disease
#8
Gustavo Gir Gomes, Wagner Luis Gali, Alvaro Valentim Lima Sarabanda, Claudio Ribeiro da Cunha, Iruena Moraes Kessler, Fernando Antibas Atik
Background: Cox-Maze III procedure is one of the surgical techniques used in the surgical treatment of atrial fibrillation (AF). Objectives: To determine late results of Cox-Maze III in terms of maintenance of sinus rhythm, and mortality and stroke rates. Methods: Between January 2006 and January 2013, 93 patients were submitted to the cut-and-sew Cox-Maze III procedure in combination with structural heart disease repair. Heart rhythm was determined by 24-hour Holter monitoring...
July 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28624330/minimally-invasive-mitral-valve-annuloplasty-confers-a-long-term-survival-benefit-compared-with-state-of-the-art-treatment-in-heart-failure-with-functional-mitral-regurgitation
#9
Martin Penicka, Martin Kotrc, Tomas Ondrus, Yujing Mo, Filip Casselman, Marc Vanderheyden, Guy Van Camp, Frank Van Praet, Jozef Bartunek
BACKGROUND: Clinical impact of the minimally invasive surgical mitral valve annuloplasty (MVA) of functional mitral regurgitation (FMR) in systolic heart failure on top of the state-of-the-art standards of care remains controversial. Therefore, we aimed to compare clinical outcomes of isolated MVA using the mini-invasive videothoracoscopic approach versus the state-of-the-art (CON=conservative) treatment in patients with chronic systolic heart failure and symptomatic FMR. METHODS: The study population consisted of 379 patients (age 68...
June 8, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28624058/preclinical-progenitor-cell-therapy-in-traumatic-brain-injury-a-meta-analysis
#10
Margaret L Jackson, Amit K Srivastava, Charles S Cox
BACKGROUND: No treatment is available to reverse injury associated with traumatic brain injury (TBI). Progenitor cell therapies show promise in both preclinical and clinical studies. We conducted a meta-analysis of preclinical studies using progenitor cells to treat TBI. METHODS: EMBASE, MEDLINE, Cochrane Review, Biosis, and Google Scholar were searched for articles using prespecified search strategies. Studies meeting inclusion criteria underwent data extraction...
June 15, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28602672/surgical-and-hybrid-ablation-of-atrial-fibrillation
#11
REVIEW
Reece A Davies, Saurabh Kumar, Richard B Chard, Stuart P Thomas
Atrial fibrillation (AF) is the most common arrhythmia in humans and is known to be associated with an increased risk of stroke, dementia, heart failure and mortality. Non-pharmacological therapy with ablation using either surgical or percutaneous techniques is recommended in drug refractory AF. Early attempts to devise procedures to ablate AF and restore sinus rhythm culminated with the Cox-Maze procedure, the first truly successful procedure. Since then, ablation surgery has been conducted predominately as a concomitant procedure...
September 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28593152/treatment-of-atrial-fibrillation-in-elderly-patients-with-the-cox-maze-procedure-concurrently-with-other-cardiac-operations
#12
Ja Hong Kuh, Joon Young Song, Tae Youn Kim, Jong Hun Kim, Jong Bum Choi
BACKGROUND: In elderly patients who have atrial fibrillation (AF), surgical ablation of the arrhythmia during cardiac surgery may be challenging. Despite the reported advantages of ablating AF with the Cox maze procedure (CMP), the addition of the CMP may complicate other cardiac operations. We evaluated the effect of the CMP in elderly patients concurrent with other cardiac operations. METHODS: From October 2007 to December 2015, we enrolled 27 patients aged >70 years who had AF and who underwent the CMP concurrently with other cardiac operations...
June 2017: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28593151/the-absence-of-atrial-contraction-as-a-predictor-of-permanent-pacemaker-implantation-after-maze-procedure-with-cryoablation
#13
Chang-Seok Jeon, Man-Shik Shim, Seung-Jung Park, Dong Seop Jeong, Kyoung-Min Park, Young Keun On, June Soo Kim, Pyo Won Park
BACKGROUND: The absence of atrial contraction (AC) after the maze procedure has been reported to cause subsequent annular dilatation and to increase the risk of embolic stroke. We hypothesized that the lack of AC could increase the risk of permanent pacemaker (PPM) implantation in patients undergoing the maze procedure. METHODS: In 376 consecutive patients who had undergone a cryo-maze procedure and combined valve operation, recovery of AC was assessed at baseline and at immediate (≤2 weeks), early (≤1 year, 4...
June 2017: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28588301/protective-effects-of-gingerol-on-streptozotocin-induced-sporadic-alzheimer-s-disease-emphasis-on-inhibition-of-%C3%AE-amyloid-cox-2-alpha-beta-secretases-and-aph1a
#14
Ali M El Halawany, Nesrine S El Sayed, Hossam M Abdallah, Riham Salah El Dine
Gingerol is a major dietary compound that occurs in several plants belonging to the Zingiberaceae family. In the current study, the protective effect of gingerol on STZ-induced sporadic Alzheimer's disease (SAD) was determined. Gingerol was isolated from the seeds of Aframomum melegueta K. Schum and tested at doses of 10 and 20 mg/kgbwt for its possible effect on the SAD model in mice, using celecoxib (30 mg/kg bwt) as a reference standard. The curative effects of gingerol were assessed through measurement of β-amyloid (Aβ-42), α-, β- secretases, APH1a and COX-2 levels...
June 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28583297/the-cox-maze-iv-procedure-for-atrial-fibrillation-is-equally-efficacious-in-patients-with-rheumatic-and-degenerative-mitral-valve-disease
#15
Jonathan E Labin, Nowrin Haque, Laurie A Sinn, Richard B Schuessler, Marc R Moon, Hersh S Maniar, Spencer J Melby, Ralph J Damiano
OBJECTIVE: To determine whether the etiology of mitral valve disease (MVD), due to either rheumatic or degenerative pathology, influences long-term outcomes after the Cox-Maze IV procedure (CMPIV). METHODS: Between February 2001 and July 2015, 245 patients received a CMIV and concomitant mitral valve procedure. Patients were separated into 2 cohorts based on their etiology of MVD, degenerative (n = 153) and rheumatic (n = 92). Patients were followed prospectively (mean follow-up: 41 ± 37 months) for recurrent atrial tachyarrhythmias (ATAs)...
September 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28577848/does-surgical-ablation-energy-source-affect-long-term-success-of-the-concomitant-cox-maze-procedure
#16
Niv Ad, Sari D Holmes, Anthony J Rongione, Paul S Massimiano, Lisa M Fornaresio
BACKGROUND: The Cox maze (CM) procedure is routinely performed using surgical ablation technology. Reports are scarce on long-term outcomes of CM, especially for a large series of patients. This study examined the potential impact of surgical ablation energy source on safety and long-term efficacy of concomitant CM procedures. METHODS: The study sample consisted of 709 concomitant CM-treated patients operated on with cryothermal energy only (group 1; n = 386) or combination of cryothermal and bipolar radiofrequency (group 2; n = 323)...
July 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28549027/a-minimally-invasive-stand-alone-cox-maze-procedure-is-as-effective-as-median-sternotomy-approach
#17
Matthew R Schill, Laurie A Sinn, Jason W Greenberg, Matthew C Henn, Timothy S Lancaster, Richard B Schuessler, Hersh S Maniar, Ralph J Damiano
OBJECTIVE: The Cox-Maze IV procedure has been shown to be an effective treatment for atrial fibrillation when performed concomitantly with other operations either via median sternotomy or right minithoracotomy. Few studies have compared these approaches in patients with lone atrial fibrillation. This study examined outcomes with sternotomy versus minithoracotomy in stand-alone Cox-Maze IV procedures at our institution. METHODS: Between 2002 and 2015, 195 patients underwent stand-alone biatrial Cox-Maze IV...
May 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28501482/ciproxifan-improves-cholinergic-transmission-attenuates-neuroinflammation-and-oxidative-stress-but-does-not-reduce-amyloid-level-in-transgenic-mice
#18
Vasudevan Mani, Siti Murnirah Jaafar, Nur Syamimi Mohd Azahan, Kalavathy Ramasamy, Siong Meng Lim, Long Chiau Ming, Abu Bakar Abdul Majeed
AIM: The present study is aimed to investigate the ability of ciproxifan, a histamine H3 receptor antagonist to inhibit β-amyloid (Aβ)-induced neurotoxicity in SK-N-SH cells and APP transgenic mouse model. MATERIALS AND METHODS: In vitro studies was designed to evaluate the neuroprotective effects of ciproxifan in Aβ25-35 - induced SK-N-SH cells. For the in vivo study, ciproxifan (1 and 3mg/kg, i.p.) was administrated to transgenic mice for 15days and behaviour was assessed using the radial arm maze (RAM)...
July 1, 2017: Life Sciences
https://www.readbyqxmd.com/read/28496076/-early-results-of-complex-fractionated-atrial-electrogram-mapping-guided-atrial-fibrillation-surgery
#19
Kazuaki Fukahara, Mari Sakai, Shigeki Yokoyama, Toshio Doi, Naoki Yoshimura
OBJECTIVE: Although the Cox-maze operation is the standard surgical procedure for permanent atrial fibrillation(AF), conversion to sinus rhythm is limited by patient characteristics, including the duration of AF, atrial size, and voltage of fibrillation waves. A surgical strategy based on structural alteration of the electrical substrates of AF is required to achieve better outcomes of AF surgery. Complex fractionated atrial electrogram (CFAE) plays an important role in the electrical substrate of AF...
May 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28487495/naoling-decoction-restores-cognitive-function-by-inhibiting-the-neuroinflammatory-network-in-a-rat-model-of-alzheimer-s-disease
#20
Zian Xia, Weijun Peng, Shunhua Cheng, Bingwu Zhong, Chenxia Sheng, Chunhu Zhang, Wei Gong, Shuai Cheng, Jun Li, Zhe Wang
Neuroinflammation is central to the pathogenesis of Alzheimer's disease (AD). We previously showed that Naoling decoction (NLD), a traditional Chinese medicine, was effective against AD, acting by inhibiting expression of IL-1β and IL-6. In the present study, we generated the rat model of AD by injecting Aβ1-42 peptide intracerebroventricularly and evaluated the dose-dependent effects of NLD treatment. The NLD-treated rats exhibited significant improvements in cognitive function as evaluated by the Morris water maze test...
June 27, 2017: Oncotarget
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