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https://www.readbyqxmd.com/read/29745519/-rhythm-analysis-of-body-surface-potential-mapping-recordings-from-atrial-fibrillation-patients-based-on-autocorrelation-function
#1
Qingzhou Zhang, Cuiwei Yang, Baodan Bai
The study of atrial fibrillation (AF) has been known as a hot topic of clinical concern. Body surface potential mapping (BSPM), a noninvasive electrical mapping technology, has been widely used in the study of AF. This study adopted 10 AF patients' preoperative and postoperative BSPM data (each patient's data contained 128 channels), and applied the autocorrelation function method to obtain the activation interval of the BSPM signals. The activation interval results were compared with that of manual counting method and the applicability of the autocorrelation function method was verified...
April 1, 2018: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
https://www.readbyqxmd.com/read/29721000/association-between-preoperative-high-sensitive-troponin-i-levels-and-cardiovascular-events-after-hip-fracture-surgery-in-the-elderly
#2
Bum Sung Kim, Tae-Hoon Kim, Jeong-Hwan Oh, Chang Hee Kwon, Sung Hea Kim, Hyun-Joong Kim, Heung Kon Hwang, Sang-Man Chung
Objective: Cardiovascular complications contribute to postoperative morbidity and mortality in elderly hip fracture patients. Limited data are available regarding which preoperative risk factors predict cardiovascular course following hip fracture surgery (HFS). We used high sensitive troponin I (hs-TnI) assays and clinical parameters to identify preoperative risk factors associated with major adverse cardiac events (MACE) in elderly hip fracture patients. Method: From August 2014 to November 2016, 575 patients with hip fracture were enrolled in a retrospective, single-center registry...
March 2018: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/29709550/is-the-behavior-of-disc-replacement-adjacent-to-fusion-affected-by-the-location-of-the-fused-level-in-hybrid-surgery
#3
Ting-Kui Wu, Yang Meng, Bei-Yu Wang, Ying Hong, Xin Rong, Chen Ding, Hua Chen, Hao Liu
BACKGROUND: Context: Hybrid surgery (HS), consisting of cervical disc arthroplasty (CDA) at the mobile level, along with anterior cervical discectomy and fusion (ACDF) at the spondylotic level, could be a promising treatment for patients with multilevel cervical degenerative disc disease (DDD). An advantage of this technique is that it utilizes an optimal procedure according to the status of each level. However, information is lacking regarding the influence of the relative location of the replacement and the fusion segment in vivo...
April 27, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29707340/antiplatelet-and-anticoagulant-for-prevention-of-reocclusion-in-patients-with-atrial-fibrillation-undergoing-endovascular-treatment-for-low-extremity-ischemia
#4
Liangxi Yuan, Cheng Chen, Ziyuan Li, Guanglang Zhu, Junmin Bao, Zhiqing Zhao, Qingsheng Lu, Zaiping Jing
Background: The purpose of this study is to report the efficacy of the mono antiplatelet plus anticoagulation therapy for prevention of reocclusion in patients with atrial fibrillation (AF) undergoing endovascular treatment for lower extremity ischemia. Methods: From March 2014 to July 2016, 32 (21 males; range, 68-84 years) patients were submitted to endovascular therapy for low extremity ischemia with AF and all were treated with endovascular treatments to correct underlying lesions...
March 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29701425/analgesia-management-for-mitral-valve-repair-via-minithoracotomy-a-case-report
#5
Andreia Fernandes, Clara Gaio Lima, Nelson Paulo, Catarina Celestino, Ana Fonte Boa, Fátima Lima, Manuela Vieira
INTRODUCTION: Minimally invasive cardiac surgery (MICS), via minithoracotomy, is thought to be a fast track to extubation and recovery after surgery. Chronic pain, due to intercostal nerve injury, develops in up to 50% of postthoracotomy patients.A number of regional anaesthesia and analgesia techniques may be employed, and the anaesthesiologists play a key role in facilitating optimal outcomes after surgery. METHODS: We report a case of postoperative pain management with a local anesthetic infiltration for MICS...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29701361/postoperative-atrial-fibrillation-after-coronary-artery-bypass-grafting-surgery
#6
Ana Filipa Ferreira, Francisca A Saraiva, Raquel Moreira, Rui J Cerqueira, Mário J Amorim, Paulo Pinho, André P Lourenço, Adelino F Leite-Moreira
INTRODUCTION: Postoperative atrial fibrillation (PoAF) is the most common arrhythmia following cardiac surgery, which increase the patient's morbidity and mortality. PURPOSE: The aim of this study was to evaluate new onset of atrial fibrillation (AF) after isolated coronary artery bypass grafting (CABG) surgery, its clinical and surgical predictors, and its impact in immediate and long-term outcomes. METHODS: Retrospective study including all CABG surgeries performed in a tertiary centre, between 2004 and 2011...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29697599/significantly-elevated-c-reactive-protein-levels-after-epicardial-clipping-of-the-left-atrial-appendage
#7
Niels J Verberkmoes, Ferdi Akca, Ann-Sofie Vandevenne, Luuk Jacobs, Mohamed A Soliman Hamad, Albert H M van Straten
OBJECTIVE: Besides mechanical and anatomical changes of the left atrium, epicardial closure of the left atrial appendage has also possible homeostatic effects. The aim of this study was to assess whether epicardial clipping of the left atrial appendage has different biochemical effects compared with complete removal of the left atrial appendage. METHODS: Eighty-two patients were included and underwent a totally thoracoscopic AF ablation procedure. As part of the procedure, the left atrial appendage was excluded with an epicardial clip (n = 57) or the left atrial appendage was fully amputated with an endoscopic vascular stapler (n = 25)...
April 24, 2018: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/29687867/cryoablation-for-atrial-fibrillation-and-antiarrhythmic-drug-pretreatment-a-single-referral-center-experience
#8
M Spartalis, E Tzatzaki, E Spartalis, D Moris, I Doulamis, A S Triantafyllis, E Livanis, G Theodorakis
OBJECTIVE: Pulmonary vein isolation (PVI) ablation has emerged as the gold standard of ablative strategies to treat medically refractory paroxysmal and persistent atrial fibrillation (AF). Regardless of the superiority of catheter ablation based on PVI over antiarrhythmic drug therapy, recurrence rates of AF remain higher than desired. PVI via cryoablation has rapidly become a mainstream treatment for AF, due to its effectiveness and fast learning curve. Our objective was to assess the safety and efficacy of cryoablation in a single referral center...
April 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29679534/determinants-of-reverse-remodeling-of-the-left-atrium-following-transaortic-myectomy
#9
Anita Nguyen, Hartzell V Schaff, Rick A Nishimura, Joseph A Dearani, Jeffrey B Geske, Brian D Lahr, Steve R Ommen
BACKGROUND: In patients with hypertrophic cardiomyopathy (HCM), enlargement of the left atrium (LA) is associated with increased morbidity and mortality due to risk of atrial fibrillation (AF), stroke, and heart failure. In this study, we investigated whether LA reverse remodeling occurs following septal myectomy. METHODS: Between March 2007 and July 2015, 656 patients underwent myectomy at our institution and had pre- and postoperative transthoracic echocardiographic (TTE) recording of LA volume index (LAVI)...
April 18, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29678618/concomitant-surgical-atrial-fibrillation-ablation-is-safe-and-efficacious-in-patients-undergoing-double-valve-replacement-a-cohort-study
#10
Guang Tong, Hao Yu, Xuan Zhou, Ben Zhang, Shenghui Bi, Lin Luo, Tao Yan, Xianyue Wang, Hua Lu, Tao Ma, Xiaowu Wang, Zhongchan Sun, Weida Zhang
BACKGROUND: Current European Society of Cardiology Guidelines recommend concomitant atrial fibrillation (AF) ablation for all symptomatic patients undergoing other cardiac surgeries, but the safety and potential benefits of concomitant atrial fibrillation (AF) ablation at the time of double valve replacement (DVR: aortic and mitral valve replacement) remains unexamined. MATERIALS AND METHODS: We conducted a retrospective review of 238 patients with AF who underwent DVR with or without concomitant surgical ablation (Ablation group, n=113; Non-ablation group, n=125) at a single institute from April 2006 to September 2011...
April 17, 2018: International Journal of Surgery
https://www.readbyqxmd.com/read/29672731/amaze-a-randomized-controlled-trial-of-adjunct-surgery-for-atrial-fibrillation
#11
Samer A M Nashef, Simon Fynn, Yasir Abu-Omar, Tomasz J Spyt, Christine Mills, Colin C Everett, Julia Fox-Rushby, Jeshika Singh, Malcolm Dalrymple-Hay, Catherine Sudarshan, Massimiliano Codispoti, Peter Braidley, Francis C Wells, Linda D Sharples
OBJECTIVES: Atrial fibrillation (AF) reduces survival and quality of life (QoL). It can be treated at the time of major cardiac surgery using ablation procedures ranging from simple pulmonary vein isolation to a full maze procedure. The aim of this study is to evaluate the impact of adjunct AF surgery as currently performed on sinus rhythm (SR) restoration, survival, QoL and cost-effectiveness. METHODS: In a multicentre, Phase III, pragmatic, double-blinded, parallel-armed randomized controlled trial, 352 cardiac surgery patients with >3 months of documented AF were randomized to surgery with or without adjunct maze or similar AF ablation between 2009 and 2014...
April 17, 2018: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29672694/successful-surgical-ablation-of-atrial-fibrillation-does-not-disturb-long-term-sinus-rhythm-variability
#12
Grzegorz Suwalski, Piotr Suwalski
OBJECTIVES: Surgical ablation of atrial fibrillation (AF) aims to restore normal sinus rhythm while protecting the sinus node from surgical damage. Surgical lesions may affect autonomic neural structures and influence physiological heart rate variability (HRV). The primary aim of this study was to describe long-term dynamics of HRV after successful surgical ablation of AF. The secondary aim was to compare sinus node function after successful ablation of AF with either left atrial modified Maze procedure or epicardial pulmonary vein isolation after long-term follow-up...
April 16, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29661349/clinical-characteristics-and-efficacy-of-radiofrequency-catheter-ablation-in-the-treatment-of-elderly-patients-with-atrial-fibrillation
#13
Xin-Yong Zhang, Rong-Hui Yu, Jian-Zheng Dong
OBJECTIVE: This study aims to investigate the clinical characteristics and therapeutic effect of radiofrequency catheter ablation (RFCA) in elderly patients with atrial fibrillation (AF). MATERIALS AND METHODS: This retrospective study included 668 patients with AF who underwent RFCA in our hospital from June 2010 to June 2015. Patients were divided into 2 groups according to age: group E (≥60 years old, n = 308) and group N (<60 years old, n = 360). Ablation endpoints included the following 3 points: (1) all preset ablation lines were completed; (2) all pulmonary veins were electrically isolated; and (3) negative evoked results were achieved...
April 2018: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/29622989/echocardiographic-predictors-of-atrial-fibrillation-after-mitral-valve-replacement
#14
REVIEW
Al-Shimaa Mohamed Sabry, Heba Abd El-Kader Mansour, Tarek Helmy Abo El-Azm, Shimaa Ahmed Mostafa, Basant Samy Zahid
Objectives: Detection of the echocardiographic predictors of post-operative atrial fibrillation in patients with rheumatic mitral valve disease undergoing mitral valve replacement. Methods: The study included 50 patients with rheumatic mitral valve disease undergoing mitral valve replacement. Preoperative assessment included standard two-dimensional echocardiography to assess LA diameter, volume, and emptying fraction, LV volume and ejection fraction. TDI derived velocity, strain of the left atrium and speckle tracking to assess left ventricular function then postoperative follow up for 1 month for occurrence of atrial fibrillation...
December 2017: The Egyptian heart journal: (EHJ): official bulletin of the Egyptian Society of Cardiology
https://www.readbyqxmd.com/read/29569513/a-role-for-the-frontal-aslant-tract-in-speech-planning-a-neurosurgical-case-study
#15
Benjamin L Chernoff, Alex Teghipco, Frank E Garcea, Max H Sims, David A Paul, Madalina E Tivarus, Susan O Smith, Webster H Pilcher, Bradford Z Mahon
Frontal and temporal white matter pathways play key roles in language processing, but the specific computations supported by different tracts remain a matter of study. A role in speech planning has been proposed for a recently described pathway, the frontal aslant tract (FAT), which connects the posterior inferior frontal gyrus to the pre-SMA. Here, we use longitudinal functional and structural MRI and behavioral testing to evaluate the behavioral consequences of a lesion to the left FAT that was incurred during surgical resection of a frontal glioma in a 60-year-old woman, Patient AF...
May 2018: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/29553284/quantitative-t2-mapping-shows-increased-degeneration-in-adjacent-intervertebral-discs-following-kyphoplasty
#16
Milena L Pachowsky, Arnd Kleyer, Lisa Wagner, Andreas Langenbach, David Simon, Rolf Janka, Matthias May, Goetz H Welsch
Objective A minimally invasive treatment of osteoporotic and nonosteoporotic thoracic and lumbar spine fractures is cement augmentation (kyphoplasty). Little is known about the impact on adjacent intervertebral discs. A quantitative magnetic resonance imaging (MRI) approach in addition to morphological MRI is desirable to evaluate changes in the intervertebral disc. Our study aims to evaluate the feasibility of T2 mapping for the detection of subtle changes in the intervertebral discs in spines after kyphoplasty...
March 1, 2018: Cartilage
https://www.readbyqxmd.com/read/29547930/atrial-endocardial-expression-of-von-willebrand-factor-and-thrombomodulin-is-associated-with-recurrence-after-minimally-invasive-surgical-atrial-fibrillation-ablation
#17
Kang An, Hang Yin, Ju Mei, Jiaquan Zhu, Min Tang
OBJECTIVES: We retrospectively analysed data from non-valvular atrial fibrillation (AF) patients who underwent minimally invasive surgical AF ablation at our centre. Our purpose was to explore the atrial endocardial expression of von Willebrand factor (vWF) and thrombomodulin (TM) and their association with rhythm results after the procedure. METHODS: From January 2014 to May 2015, 60 patients underwent minimally invasive surgical AF ablation at our centre. Left atrial appendage samples were obtained during the procedure and immunohistochemistry for endocardial markers including vWF and TM was performed and semi-quantitatively graded...
March 14, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29525787/intraoperative-inducibility-of-atrial-fibrillation-does-not-predict-early-postoperative-atrial-fibrillation
#18
Eva A H Lanters, Christophe P Teuwen, Ameeta Yaksh, Charles Kik, Lisette J M E van der Does, Elisabeth M J P Mouws, Paul Knops, Nicole J van Groningen, Thijmen Hokken, Ad J J C Bogers, Natasja M S de Groot
BACKGROUND: Early postoperative atrial fibrillation (EPoAF) is associated with thromboembolic events, prolonged hospitalization, and development of late PoAF (LPoAF). It is, however, unknown if EPoAF can be predicted by intraoperative AF inducibility. The aims of this study are therefore to explore (1) the value of intraoperative inducibility of AF for development of both EPoAF and LPoAF and (2) the predictive value of de novo EPoAF for recurrence of LPoAF. METHODS AND RESULTS: Patients (N=496, 75% male) undergoing cardiothoracic surgery for coronary and/or valvular heart disease were included...
March 10, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29523917/how-do-different-extracorporeal-circulation-systems-affect-metoprolol-bioavailability-in-coronary-artery-bypass-surgery-patients
#19
Hannu Kokki, Martin Maaroos, Sten Ellam, Jari Halonen, Ilkka Ojanperä, Merja Ranta, Veli-Pekka Ranta, Aleksandra Tolonen, Oscar Lindberg, Matias Viitala, Juha Hartikainen
PURPOSE: Cardiac surgery and conventional extracorporeal circulation (CECC) impair the bioavailability of drugs administered by mouth. It is not known whether miniaturized ECC (MECC) or off-pump surgery (OPCAB) affect the bioavailability in similar manner. We evaluated the metoprolol bioavailability in patients undergoing CABG surgery with CECC, MECC, or having OPCAB. METHODS: Thirty patients, ten in each group, aged 44-79 years, scheduled for CABG surgery were administered 50 mg metoprolol by mouth on the preoperative day at 8-10 a...
June 2018: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29517692/blood-transfusion-and-risk-of-atrial-fibrillation-after-coronary-artery-bypass-graft-surgery-a-meta-analysis-of-cohort-studies
#20
REVIEW
Shengqun Liu, Zhanwen Li, Zhe Liu, Zhenhua Hu, Gaifang Zheng
The aim of this study was to systematically evaluate the effect of blood transfusion (BT) on postoperative atrial fibrillation (AF) in adult patients who had undergone coronary artery bypass grafting (CABG) surgery.PubMed, Embase, and Cochrane Library databases from inception to January 2017 were searched. Cohort studies were searched that evaluated the association between BT and the risk of postoperative AF in adult patients who had undergone CABG surgery. Study quality was assessed by using the Newcastle-Ottawa scale (NOS)...
March 2018: Medicine (Baltimore)
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