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Postoperative atrial fibrilation

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https://www.readbyqxmd.com/read/27924066/assessment-of-atrial-electromechanical-interval-using-echocardiography-after-catheter-ablation-in-patients-with-persistent-atrial-fibrillation
#1
Xiaodong Chen, Minglong Chen, Yingying Wang, Bing Yang, Weizhu Ju, Fengxiang Zhang, Kejiang Cao
We sought to investigate variation of atrial electromechanical interval after catheter ablation procedure in patients with persistent atrial fibrillation using pulse Doppler (PW) and pulse tissue Doppler imaging (PW-TDI). A total of 25 consecutive in-patients with persistent atrial fibrillation, who restored sinus rhythm after ablation procedure, were recruited in our cardiac center. Echocardiography was performed on each patient at 2 hours, 1 day, 5 days, 1 month and 3 months after the ablation therapy, and atrial electromechanical delay was measured simultaneously by PW and PW-TDI...
November 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/27923804/associations-of-epicardial-abdominal-and-overall-adiposity-with-atrial-fibrillation
#2
Christopher X Wong, Michelle T Sun, Ayodele Odutayo, Connor A Emdin, Rajiv Mahajan, Dennis H Lau, Rajeev K Pathak, Dennis T Wong, Joseph B Selvanayagam, Prashanthan Sanders, Robert Clarke
BACKGROUND: Although adiposity is increasingly recognized as a risk factor for atrial fibrillation (AF), the importance of epicardial fat compared with other adipose tissue depots remains uncertain. We sought to characterize and compare the associations of AF with epicardial fat and measures of abdominal and overall adiposity. METHODS AND RESULTS: We conducted a meta-analysis of 63 observational studies including 352 275 individuals, comparing AF risk for 1-SD increases in epicardial fat, waist circumference, waist/hip ratio, and body mass index...
December 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27923400/allele-specific-expression-in-the-human-heart-and-its-application-to-postoperative-atrial-fibrillation-and-myocardial-ischemia
#3
Martin I Sigurdsson, Louis Saddic, Mahyar Heydarpour, Tzuu-Wang Chang, Prem Shekar, Sary Aranki, Gregory S Couper, Stanton K Shernan, Jon G Seidman, Simon C Body, Jochen D Muehlschlegel
BACKGROUND: Allele-specific expression (ASE) is differential expression of each of the two chromosomal alleles of an autosomal gene. We assessed ASE patterns in the human left atrium (LA, n = 62) and paired samples from the left ventricle (LV, n = 76) before and after ischemia, and tested the utility of differential ASE to identify genes associated with postoperative atrial fibrillation (poAF) and myocardial ischemia. METHODS: Following genotyping from whole blood and whole-genome sequencing of LA and LV samples, we called ASE using sequences overlapping heterozygous SNPs using rigorous quality control to minimize false ASE calling...
December 6, 2016: Genome Medicine
https://www.readbyqxmd.com/read/27920591/left-atrial-myxomectomy-with-intraoperative-severe-mitral-regurgitation-and-complicated-postoperative-course-case-report
#4
Nareg Minaskeian, Patrick P Hu
Primary cardiac tumors are a rare occurrence with myxomas accounting for about half of the benign tumors. Once diagnosed, surgical resection is the standard of care. Our case describes a female in her 50s who underwent a myxoma resection under cardiopulmonary bypass via biatrial approach. Intraoperatively, the thin septal crux between the wall of the aorta and mitral valve was damaged during resection, requiring stem cell tissue matrix for repair. The patient also developed severe mitral regurgitation suggesting infarct to the left coronary system during resection, subsequently receiving a mechanical mitral valve and a saphenous vein bypass graft...
2016: Clinical Medicine Insights. Case Reports
https://www.readbyqxmd.com/read/27919764/postoperative-atrial-tachycardias-following-mitral-valve-surgery-mechanisms-and-outcomes-of-catheter-ablation
#5
Andres Enriquez, Pasquale Santangeli, Erica Zado, Jackson Liang, Simon Castro, Fermin Garcia, Robert Schaller, Gregory Supple, David Frankel, David Callans, David Lin, Sanjay Dixit, Rajat Deo, Michael Riley, Francis Marchlinski
BACKGROUND: Atrial tachycardias (ATs) including atrial fibrillation (AF) are common arrhythmias late after mitral valve (MV) surgery and their management is challenging. OBJECTIVE: To determine the electrophysiological mechanisms of ATs in patients with prior MV surgery and the long-term outcomes of catheter ablation. METHODS: We studied 67 consecutive patients (age 59.4±10.6 years, 41 male) with a history of MV surgery who presented with ATs post-operatively between 2007-2015...
December 2, 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/27919293/perioperative-statin-therapy-in-cardiac-surgery-a-meta-analysis-of-randomized-controlled-trials
#6
Alessandro Putzu, Bruno Capelli, Alessandro Belletti, Tiziano Cassina, Enrico Ferrari, Michele Gallo, Gabriele Casso, Giovanni Landoni
BACKGROUND: Several studies suggest beneficial effects of perioperative statin therapy on postoperative outcome after cardiac surgery. However, recent randomized controlled trials (RCTs) show potential detrimental effects. The objective of this systematic review is to examine the association between perioperative statin therapy and clinical outcomes in cardiac surgery patients. METHODS: Electronic databases were searched up to 1 November 2016 for RCTs of preoperative statin therapy versus placebo or no treatment in adult cardiac surgery...
December 5, 2016: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/27918330/preoperative-echocardiographic-indices-of-diastolic-dysfunction-and-brain-natriuretic-peptide-in-predicting-postoperative-atrial-fibrillation-after-noncardiac-surgery
#7
Oren Brecher, Harleena Gulati, Nancy Roistacher, Hao Zhang, Weiji Shi, Howard T Thaler, David Amar
BACKGROUND: We have shown previously that either echocardiographic indices of diastolic dysfunction or increased preoperative brain natriuretic peptide (BNP) predict postoperative atrial fibrillation (POAF). Because these 2 predictors of POAF have not been evaluated together, our goal was to further elucidate their concurrent role in patients undergoing noncardiac thoracic surgery. METHODS: We retrospectively identified 191 patients who had a preoperative transthoracic echocardiogram and serum BNP level collected as part of routine care before major lung or esophageal resection...
December 1, 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27914501/levosimendan-in-patients-with-left-ventricular-systolic-dysfunction-undergoing-cardiac-surgery-on-cardiopulmonary-bypass-rationale-and-study-design-of-the-levosimendan-in-patients-with-left-ventricular-systolic-dysfunction-undergoing-cardiac-surgery-requiring
#8
Rajendra H Mehta, Sean Van Diepen, James Meza, Paula Bokesch, Jeffrey D Leimberger, Sandra Tourt-Uhlig, Merri Swartz, Jodi Parrotta, Rachael Jankowich, Douglas Hay, Robert W Harrison, Stephen Fremes, Shaun G Goodman, John Luber, Wolfgang Toller, Matthias Heringlake, Kevin J Anstrom, Jerrold H Levy, Robert A Harrington, John H Alexander
BACKGROUND: Low cardiac output syndrome is associated with increased mortality and occurs in 3% to 14% of patients undergoing cardiac surgery on cardiopulmonary bypass (CPB). Levosimendan, a novel calcium sensitizer and KATP channel activator with inotropic, vasodilatory, and cardioprotective properties, has shown significant promise in reducing the incidence of low cardiac output syndrome and related adverse outcomes in patients undergoing cardiac surgery on CPB. METHODS: LEVO-CTS is a phase 3 randomized, controlled, multicenter study evaluating the efficacy, safety, and cost-effectiveness of levosimendan in reducing morbidity and mortality in high-risk patients with reduced left ventricular ejection fraction (≤35%) undergoing cardiac surgery on CPB...
December 2016: American Heart Journal
https://www.readbyqxmd.com/read/27914496/computed-tomography-derived-skeletal-muscle-index-a-novel-predictor-of-frailty-and-hospital-length-of-stay-after-transcatheter-aortic-valve-replacement
#9
Vishal Dahya, Jingjie Xiao, Carla M Prado, Penny Burroughs, Dan McGee, Aline C Silva, Julian E Hurt, Shafi G Mohamed, Thomas Noel, Wayne Batchelor
: To determine the prevalence of low skeletal muscle mass in patients undergoing transcatheter aortic valve replacement (TAVR) and whether skeletal muscle mass measured from preoperative computed tomography (CT) images provides value in predicting postoperative length of stay (LOS). BACKGROUND: There are limited data on the use of body composition as a frailty measure in TAVR patients and no studies have determined if this measure predicts LOS. METHODS: We studied 104 consecutive patients who underwent TAVR at Tallahassee Memorial Hospital from 2012 to 2016...
December 2016: American Heart Journal
https://www.readbyqxmd.com/read/27914360/white-blood-cell-count-and-new-onset-atrial-fibrillation-after-cardiac-surgery
#10
Kirolos A Jacob, Marc P Buijsrogge, Jos F Frencken, Maarten J Ten Berg, Willem J L Suyker, Diederik van Dijk, Jan M Dieleman
BACKGROUND: Postoperative new-onset atrial fibrillation (PNAF) is the most common complication following cardiac surgery. The inflammatory response, as a potential underlying mechanism, has been extensively studied. In small studies, the white blood cell count (WBC) has been shown to be the only consistent inflammatory marker associated with PNAF. This study aimed to determine the association between perioperative WBC response and PNAF in a larger study cohort. METHODS: Patients ≥18years, undergoing elective cardiac surgery with a preoperative sinus rhythm were included...
November 17, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27914358/defining-the-role-of-perioperative-statin-treatment-in-patients-after-cardiac-surgery-a-meta-analysis-and-systematic-review-of-20-randomized-controlled-trials
#11
Xin Yuan, Jianlin Du, Qi Liu, Ling Zhang
BACKGROUND: Although statin use has been indicated to prevent atrial fibrillation in previous observational and experimental trials, the issue remains inadequately and insufficiently explored. We therefore performed this meta-analysis to evaluate the effects of perioperative statin therapy on complications and short-term prognosis following cardiac surgery. METHODS: A search of the PubMed, EMBASE and the Cochrane database of controlled trials was performed from inception to June 2016 to identify relevant randomized controlled trials (RCTs)...
November 9, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27909513/assessment-of-sinoatrial-node-function-in-patients-with-persistent-and-long-standing-persistent-forms-of-atrial-fibrillation-after-maze-iii-procedure-combined-with-mitral-valve-operation
#12
Kulikov Aleksei A, Bokeria Leo A
RESEARCH OBJECTIVE: Assessment of sinoatrial node function after Maze III procedure combined with a mitral valve operation. METHODS: 100 patients were included in the research with persistent and long-standing persistent forms of atrial fibrillation (AF) and need of operative treatment concerning valve disease. The following preoperative preparation methods were executed to all patients: Electrocardiogram in 12 standard assignments;Two-dimensional echocardiographic with assessment of systolic and diastolic functions of the left ventricle, size of the left atrium and grade of valve disease;Transesophageal echocardiography for exclusion of blood clots in the left atrium and left atrial appendage;Coronary angiography for exclusion of coronary heart disease;Computer tomography for examination of cardiac chambers and anatomic characteristics of pulmonary veins...
June 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27906091/impact-of-prophylactic-administration-of-levosimendan-on-short-term-and-long-term-outcome-in-high-risk-patients-with-severely-reduced-left-ventricular-ejection-fraction-undergoing-cardiac-surgery-a-retrospective-analysis
#13
Philippe Grieshaber, Stella Lipp, Andreas Arnold, Gerold Görlach, Matthias Wollbrück, Peter Roth, Bernd Niemann, Jochen Wilhelm, Andreas Böning
BACKGROUND: Patients with severely reduced left-ventricular ejection fraction carry a high risk of morbidity and mortality after cardiac surgery. Levosimendan can be used prophylactically in these patients having shown positive effects on short-term outcome. However, effects on long-term outcome and patient subgroups benefiting the most are unknown. We aim to address these topics with real-life data from our clinical practice. METHODS: Two hundred eigthy eight patients with preoperative LVEF ≤ 35% underwent cardiac surgery with cardiopulmonary bypass between 2009 and 2013...
December 1, 2016: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/27904574/comparison-of-early-period-results-of-blood-use-in-open-heart-surgery
#14
Serhat Huseyin, Volkan Yuksel, Orkut Guclu, Fatma Nesrin Turan, Suat Canbaz, Turan Ege, Hasan Sunar
BACKGROUND: Various adverse effects of homologous blood transfusion detected particularly in open heart surgery, in which it is frequently used, lead researchers to study on autologous blood use and to evaluate the patient's blood better. Due to the complications of homologous blood transfusion, development of techniques that utilize less transfusion has become inevitable. We aimed to evaluate the effects of acute normovolemic hemodilution (ANH) in patients undergoing open heart surgery...
2016: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/27903589/impact-of-left-atrial-appendage-closure-during-cardiac-surgery-on-the-occurrence-of-early-postoperative-atrial-fibrillation-stroke-and-mortality-a-propensity-score-matched-analysis-of-10-633-patients
#15
Rowlens M Melduni, Hartzell V Schaff, Hon-Chi Lee, Bernard J Gersh, Peter A Noseworthy, Kent R Bailey, Naser M Ammash, Stephen S Cha, Kaniz Fatema, Waldemar E Wysokinski, James B Seward, Douglas L Packer, Charanjit S Rihal, Samuel J Asirvatham
BACKGROUND: -Prophylactic exclusion of the left atrial appendage (LAA) is often performed during cardiac surgery ostensibly to reduce the risk of stroke. However, the clinical impact of LAA closure in humans remains inconclusive. METHODS: -Out of 10,633 adults who underwent CABG and/or valve surgery between January 2000 and December 2005, 9,792 patients with complete baseline characteristics, surgery procedure and follow-up data were included in this analysis. A propensity-score matching analysis based on 28 pretreatment covariates was performed and 461 matching pairs were derived and analyzed to estimate the association of LAA closure with early postoperative atrial fibrillation (POAF) (AF ≤30 days of surgery), ischemic stroke and mortality...
November 30, 2016: Circulation
https://www.readbyqxmd.com/read/27893697/morbidity-and-mortality-predictivity-of-nutritional-assessment-tools-in-the-postoperative-care-unit
#16
Şule Özbilgin, Volkan Hanc, Dilek Ömür, Mücahit Özbilgin, Mine Tosun, Serhan Yurtlu, Semih Küçükgüçlü, Atalay Arkan
The aim was to evaluate the nutritional situation of patients admitted to the Postoperative Acute Care Unit using classic methods of objective anthropometry, systemic evaluation methods, and Nutrition Risk in Critically Ill (NUTRIC) score, and to compare them as a predictor of morbidity and mortality.At admission to the postoperative care unit, patients undergoing various surgeries were assessed for the following items: Subjective Global Assessment (SGA), Nutritional Risk Index (NRI), Nutritional Risk Screening (NRS)-2002, Mini Nutritional Assessment (MNA), Charlson comorbidity index (CCI), and NUTRIC score, anthropometric measurements, serum total protein, serum albumin, and lymphocyte count...
October 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27887899/association-of-preoperative-right-and-left-ventricular-diastolic-dysfunction-with-postoperative-atrial-fibrillation-in-patients-undergoing-lung-surgery-a-prospective-observational-study
#17
Norikatsu Mita, Masataka Kuroda, Sohtaro Miyoshi, Shigeru Saito
OBJECTIVES: To clarify the relationship between right and left ventricular (RV and LV) diastolic function and postoperative atrial fibrillation (POAF). The early effects of major lung surgery on cardiac function in the intraoperative period during lung surgery were evaluated, using transesophageal echocardiography. DESIGN: Single-center prospective observational study. SETTING: A public hospital. PARTICIPANTS: Patients undergoing elective lobectomy with lymph node dissection for lung cancer (n = 116)...
September 13, 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/27887690/relation-of-mitochondrial-dna-copy-number-in-peripheral-blood-to-postoperative-atrial-fibrillation-after-isolated-off-pump-coronary-artery-bypass-grafting
#18
Jian Zhang, Shu Xu, Yinli Xu, Yu Liu, Zhi Li, Yuji Zhang, Yan Jin, Xiaodong Xue, Huishan Wang
Oxidative stress has been considered to be an important factor contributing to postoperative atrial fibrillation (PoAF). Mitochondrial DNA (mtDNA) copy number in peripheral blood has been found to be associated with a patient's oxidative stress. Therefore, we sought to determine whether there was association between mtDNA copy number and the onset of atrial fibrillation. mtDNA copy numbers were measured using the quantitative real-time polymerase chain reaction in peripheral blood from 485 consecutive patients with sinus rhythm undergoing coronary artery bypass grafting...
November 1, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/27884760/marine-n-3-fatty-acids-and-the-risk-of-new-onset-postoperative-atrial-fibrillation-after-cardiac-surgery
#19
REVIEW
Pia T Dinesen, Erik B Schmidt
No abstract text is available yet for this article.
November 21, 2016: Vascular Pharmacology
https://www.readbyqxmd.com/read/27876282/to-use-or-not-to-use-amiodarone-before-heart-transplantation
#20
Entela B Lushaj, Ravi Dhingra, Shahzad Chindhy, Shahab Akhter, Takushi Kohmoto, Susan Ulschmid, Satoru Osaki, Abbasali Badami, Lucian Lozonschi
BACKGROUND: Amiodarone frequently is used in patients with heart failure. Concerns still exist about possible complications related to its lingering effect during and after heart transplantation. METHODS: We selected all consecutive patients who received a heart transplant at our institution between January 2004 and December 2015 (n = 220) and compared the peri- and postoperative outcomes of patients who were taking amiodarone for at least 120 days before heart transplant (n = 127) with patients who did not take amiodarone prior to heart transplant (n = 93)...
November 19, 2016: Surgery
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