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Surgical Cardiac Ablation

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https://www.readbyqxmd.com/read/28938531/premature-senescence-of-cardiac-fibroblasts-and-atrial-fibrosis-in-patients-with-atrial-fibrillation
#1
Jun Xie, Yuhan Chen, Chuanxian Hu, Quanhua Pan, Bingjian Wang, Xueling Li, Jin Geng, Biao Xu
Premature senescence is associated with atrial fibrosis and has an antifibrotic effect in mice. However, the role of senescence in atrial fibrillation (AF) remains unclear. Here, we investigated the association of premature senescence with fibrosis and also determined the role of senescence in the recurrence of AF after surgery ablation. Western blot, Sirius red staining, SA-β-gal staining and immunohistochemistry were performed to detect the degree of atrial fibrosis ,the expression of TGF-β and collagens, and also the senescence markers in 72 tissue specimens of left atrial appendage in this study...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28901158/hypertrophic-obstructive-cardiomyopathy-review-of-surgical-treatment
#2
Jonathan Price, Nicholas Clarke, Aslan Turer, Eduard Quintana, Carlos Mestres, Lynn Huffman, Matthias Peltz, Michael Wait, W Steves Ring, Michael Jessen, Pietro Bajona
Hypertrophic cardiomyopathy ranks among the most common congenital cardiac diseases, affecting up to 1 in 200 of the general population. When it causes left ventricular outflow tract obstruction, treatment is guided to reduce symptoms and the risk of sudden cardiac death. Pharmacologic therapy is the first-line treatment, but when it fails, surgical myectomy or percutaneous ablation of the hypertrophic myocardium are the standard therapies to eliminate subaortic obstruction. Both surgical myectomy and percutaneous ablation are proven safe and effective treatments; however, myectomy is the gold standard with a significantly lower complication rate and more complete and lasting reduction of left ventricular outflow tract obstruction...
January 1, 2017: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/28876642/outcome-of-liver-resection-for-carcinoid-neuroendocrine-metastases
#3
M D Polkinghorne, J E J Krige, E Jonas, U K Kotze, M M Bernon
BACKGROUND: Gastrointestinal carcinoid tumours, despite their low malignant potential, frequently metastasize to the liver. While liver resection improves survival and provides symptomatic relief, multifocal bilobar disease complicates surgical management. METHOD: All patients with carcinoid liver secondaries managed by resection from 1990-2015 were identified from a prospective departmental database. Demographic data, operative management, morbidity using the Accordion classification and mortality were analysed...
June 2017: South African Journal of Surgery. Suid-Afrikaanse Tydskrif Vir Chirurgie
https://www.readbyqxmd.com/read/28856513/emerging-pharmacologic-and-structural-therapies-for-hypertrophic-cardiomyopathy
#4
REVIEW
Daniel J Philipson, Eugene C DePasquale, Eric H Yang, Arnold S Baas
Hypertrophic cardiomyopathy is the most common inherited heart disease. Although it was first described over 50 years ago, there has been little in the way of novel disease-specific therapeutic development for these patients. Current treatment practice largely aims at symptomatic control using old drugs made for other diseases and does little to modify the disease course. Septal reduction by surgical myectomy or percutaneous alcohol septal ablation are well-established treatments for pharmacologic-refractory left ventricular outflow tract obstruction in hypertrophic cardiomyopathy patients...
August 31, 2017: Heart Failure Reviews
https://www.readbyqxmd.com/read/28835834/supraventricular-arrhythmias-in-patients-with-adult-congenital-heart-disease
#5
Carina Blomström Lundqvist, Tatjana S Potpara, Helena Malmborg
An increasing number of patients with congenital heart disease survive to adulthood; such prolonged survival is related to a rapid evolution of successful surgical repairs and modern diagnostic techniques. Despite these improvements, corrective atrial incisions performed at surgery still lead to subsequent myocardial scarring harbouring a potential substrate for macro-reentrant atrial tachycardia. Macroreentrant atrial tachycardias are the most common (75 %) type of supraventricular tachycardia (SVT) in patients with adult congenital heart disease (ACHD)...
June 2017: Arrhythmia & Electrophysiology Review
https://www.readbyqxmd.com/read/28833764/ganglionated-plexi-as-neuromodulation-targets-for-atrial-fibrillation
#6
Eue-Keun Choi, Ye Zhao, Thomas H Everett, Peng-Sheng Chen
The autonomic nervous system plays an important role in the genesis of atrial fibrillation and is one of the candidate targets for atrial fibrillation therapy. This review focuses on the role of the autonomic nervous system in atrial fibrillation development and discusses the results of the ganglionated plexi catheter and surgical ablation in preclinical and clinical studies. The heart is innervated by the extrinsic and intrinsic autonomic nervous systems. The intrinsic autonomic nervous system consists of multiple ganglionated plexi and axons, which innervate the neighboring atrial myocardium and control their electrophysiological properties...
August 18, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28802656/rethinking-papillary-muscle-resection-for-refractory-ventricular-tachycardia-in-the-lvad-era-a-case-report
#7
Zachary J Il'Giovine, Adam D DeVore, Chetan B Patel, Jason Koontz, Jacob Schroder
We report the case of a 57-year-old man with a history of ischemic cardiomyopathy who presented to the hospital with recurrent episodes of ventricular tachycardia refractory to antiarrhythmic medications. Mapping identified a deep premature ventricular contraction focus in the anterolateral papillary muscle, an area that has been previously identified as difficult to treat with radiofrequency catheter ablation. The hospital course was complicated by cardiogenic shock and VT-storm, and the patient ultimately underwent surgical resection of the anterolateral papillary muscle with left ventricular assist device placement as a successful bridge to cardiac transplantation...
July 12, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28775383/high-resolution-3-dimensional-imaging-of-the-human-cardiac-conduction-system-from-microanatomy-to-mathematical-modeling
#8
Robert S Stephenson, Andrew Atkinson, Petros Kottas, Filip Perde, Fatemeh Jafarzadeh, Mike Bateman, Paul A Iaizzo, Jichao Zhao, Henggui Zhang, Robert H Anderson, Jonathan C Jarvis, Halina Dobrzynski
Cardiac arrhythmias and conduction disturbances are accompanied by structural remodelling of the specialised cardiomyocytes known collectively as the cardiac conduction system. Here, using contrast enhanced micro-computed tomography, we present, in attitudinally appropriate fashion, the first 3-dimensional representations of the cardiac conduction system within the intact human heart. We show that cardiomyocyte orientation can be extracted from these datasets at spatial resolutions approaching the single cell...
August 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28774344/late-outcome-of-surgical-radiofrequency-ablation-for-persistent-valvular-atrial-fibrillation-in-china-a-single-center-study
#9
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/28766834/transseptal-puncture-using-surgical-electrocautery-in-children-and-adults-with-and-without-complex-congenital-heart-disease
#10
Srinath T Gowda, Athar M Qureshi, Daniel Turner, Nitin Madan, Justin Weigand, Richard Lorber, Harinder R Singh
BACKGROUND: Atrial transseptal puncture (TSP) for cardiac catheterization procedures remain challenging in children and adults with complex congenital heart disease (CHD). OBJECTIVES: We sought to evaluate our experience using radiofrequency (RF) current via surgical electrocautery needle for TSP to facilitate diagnostic and interventional procedures. METHODS: Retrospective chart review of all patients (pts) who underwent TSP using RF energy (10-25 W) via surgical electrocautery from three centers from January 2011 to January 2017 were evaluated...
August 2, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28759818/histological-topography-of-the-atrioventricular-node-and-its-extensions-in-relation-to-the-cardiothoracic-surgical-landmarks-in-normal-human-hearts
#11
Arpandeep Randhawa, Tulika Gupta, Anjali Aggarwal, Daisy Sahni, Rana Sandip Singh
BACKGROUND: Atrioventricular (AV) nodal injury which results in cardiac conduction disorders is one of the potential complications of heart valve surgeries and radiofrequency catheter ablations. Understanding the topography of the AV conduction system in relation to the tricuspid and mitral valves will help in reducing these complications. METHODS: A tissue block of 3cmx4cm, which contain the AV node, bundle of His and the AV nodal extensions, was excised at the AV septal junction in 20 apparently normal human hearts...
September 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/28756933/pericardial-herniation-of-small-bowel-post-minimally-invasive-hybrid-maze-of-atrial-fibrillation
#12
David A Farcy, Angelo Lapietra, Benjamin N Abo, Michael Dalley
BACKGROUND: Herniation of intraabdominal contents into the pericardial cavity is exceptionally rare, and when seen, it is most often the result of trauma, postsurgical complication, or genetic defect. There have been only a few case reports describing spontaneous bowel herniation into the pericardium in minimally invasive cardiac procedures like cardiac ablation, pacemaker placement, and minimally invasive coronary artery bypass graft. CASE REPORT: We report the case of a 65-year-old man who presented to an urgent care center complaining of abdominal and chest pain...
July 27, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28706585/atrial-tachyarrhythmia-in-adult-congenital-heart-disease
#13
REVIEW
Arsha Karbassi, Krishnakumar Nair, Louise Harris, Rachel M Wald, S Lucy Roche
The adult congenital heart disease (ACHD) population continues to grow and most cardiologists, emergency room physicians and family doctors will intermittently come into contact with these patients. Oftentimes this may be in the setting of a presentation with atrial tachyarrhythmia; one of the commonest late complications of ACHD and problem with potentially serious implications. Providing appropriate initial care and ongoing management of atrial tachyarrhythmia in ACHD patients requires a degree of specialist knowledge and an awareness of certain key issues...
June 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28669501/surgical-ablation-of-atrial-fibrillation-in-the-united-states-trends-and-propensity-matched-outcomes
#14
MULTICENTER STUDY
Vinay Badhwar, J Scott Rankin, Niv Ad, Maria Grau-Sepulveda, Ralph J Damiano, A Marc Gillinov, Patrick M McCarthy, Vinod H Thourani, Rakesh M Suri, Jeffrey P Jacobs, James L Cox
BACKGROUND: Surgical ablation (SA) for atrial fibrillation (AF) effectively restores sinus rhythm. Incompletely defined risk has previously limited concomitant performance of SA during cardiac operations. The study goals were to define performance trends and risk-adjusted outcomes for contemporary SA. METHODS: From July 2011 to June 2014, 86,941 patients with AF, but without endocarditis, underwent primary nonemergent cardiac operations in The Society of Thoracic Surgeons (STS) database...
August 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28652032/long-term-results-of-surgical-atrial-fibrillation-radiofrequency-ablation-comparison-of-two-methods
#15
Song Yang, Bo Mei, Kangni Feng, Weibin Lin, Guangxian Chen, Mengya Liang, Xi Zhang, Zhongkai Wu
BACKGROUND: This retrospective study aimed to evaluate the long-term results of two kinds of surgical atrial fibrillation radiofrequency ablations in concomitant cardiac operations. METHODS: We enrolled 129 patients from January 2006 to December 2015 and performed cardiac operations concomitantly with surgical atrial fibrillation. The patients were divided into a biatrial MAZE group (94 patients) and a left atrial MAZE group (35 patients). A preoperative baseline was compared with intraoperative and postoperative data...
May 24, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28644155/transvenous-before-surgical-hybrid-procedure
#16
Joseph J Tiano, Robert Drennan, John Novella, Rafael Squiteri, Malcolm Robinson, Albert DiMeo, Lindsey Scierka, Paul LeLorier
BACKGROUND: Historically, persistent atrial fibrillation (PeAF) and long standing persistent atrial fibrillation (LSPeAF) have demonstrated limited clinical success despite hybrid approaches. OBJECTIVE: We describe our experience with the endocardial-before-epicardial approach defined by a comprehensive endovascular approach preceding and guiding the epicardial approach which includes an extensive posterior wall ablation. METHODS: 40 patients were followed over a 12 month period...
May 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28605469/surgical-ablation-for-persistent-atrial-fibrillation-in-concomitant-cardiac-surgery-mid-long-term-result%C3%A2
#17
Wenda Gu, Huiming Guo, Cong Lu, Huanlei Huang, Jing Liu, Jian Liu, Bin Xie, Ruobin Wu, Jimei Chen, Jian Zhuang
OBJECTIVES: Surgical ablation is an option for patients with atrial fibrillation (AF) undergoing concomitant cardiac surgery. This study aims to evaluate the outcome of surgical ablation during concomitant cardiac surgery and to identify the independent predictors for a primary end-point consisting of AF or atrial flutter (AFL) recurrence, death, permanent pacemaker implantation and necessity for anti-arrhythmic drugs and the effects of reintervention for AF/AFL recurrence. METHODS: A retrospective analysis was performed for 1028 patients who underwent surgical ablation during concomitant cardiac surgery from October 2004 to April 2015...
June 12, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28593152/treatment-of-atrial-fibrillation-in-elderly-patients-with-the-cox-maze-procedure-concurrently-with-other-cardiac-operations
#18
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/28536917/comparison-of-early-outcomes-of-surgical-ablation-procedures-for-atrial-fibrillation-concomitant-to-non-mitral-cardiac-surgery-a-japan-adult-cardiovascular-surgery-database-study
#19
Hideaki Takai, Hiroaki Miyata, Noboru Motomura, Kenichi Sasaki, Takashi Kunihara, Shinichi Takamoto
OBJECTIVE: Although the benefit of surgical ablation for atrial fibrillation (AF) performed concomitant to mitral valve surgery is established, whether that performed concomitant to non-mitral cardiac surgery is beneficial remains unclear. In non-mitral, non-left-atriotomy cardiac surgery, the optimal surgical approach for AF remains to be established. Therefore, using the Japan Adult Cardiovascular Surgery Database (JACVSD), we compared 2 surgical ablation procedures [the maze procedure and pulmonary vein isolation (PVI)] performed concomitant to non-mitral cardiac surgery...
May 23, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28525549/the-change-in-circulating-galectin-3-predicts-absence-of-atrial-fibrillation-after-thoracoscopic-surgical-ablation
#20
Wouter R Berger, Benoît Jagu, Nicoline W E van den Berg, Dean R P P Chan Pin Yin, Jan P van Straalen, Onno J de Boer, Antoine H G Driessen, Jolien Neefs, Sébastien P J Krul, WimJan P van Boven, Allard C van der Wal, Joris R de Groot
Aims: Galectin-3 (Gal-3) is an important mediator of cardiac fibrosis, particularly in heart failure. Increased Gal-3 concentration (Gal-3), associated with increased risk of developing atrial fibrillation (AF), may reflect atrial fibrotic remodelling underlying AF progression. We aimed to investigate whether the change in serum Gal-3 reflects alterations of the arrhythmogenic atrial substrate following thoracoscopic AF surgery, and predicts absence of AF. Methods and results: Consecutive patients undergoing thoracoscopic AF surgery were included...
May 19, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
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