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https://www.readbyqxmd.com/read/28944616/time-course-of-the-changes-in-right-and-left-ventricle-function-and-associated-factors-after-transcatheter-closure-of-atrial-septal-defects
#1
Byung W Yoo, Jung O Kim, Lucy Y Eun, Jae Y Choi, Dong S Kim
OBJECTIVE: The purpose of this study was to evaluate the changes in right ventricle (RV) and left ventricle (LV) function after transcatheter atrial septal defect (ASD) closure and to assess the influence of the age and the amount of shunt. DESIGN: Retrospective study PATIENTS: Fifty-three adult patients who underwent transcatheter closure were enrolled, then divided into subgroups according to the age (< 40 years vs ≥ 40 years), and the amount of shunt flow (QpQs < 2...
September 24, 2017: Congenital Heart Disease
https://www.readbyqxmd.com/read/28944187/transaortic-mitral-valve-secondary-chordal-cutting-in-patients-with-obstructive-hypertrophic-cardiomyopathy-and-mild-septal-hypertrophy
#2
REVIEW
Irene Binaco, Paolo Spirito, Daniele Poggio, Valter Casati, Massimiliano Grillo, Paolo Ferrazzi
No abstract text is available yet for this article.
July 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28944183/transaortic-septal-myectomy-techniques-and-pitfalls
#3
REVIEW
Anthony Ralph-Edwards, Rachel D Vanderlaan, Pietro Bajona
Hypertrophic cardiomyopathy (HCM) is the most common congenital cardiac disease, affecting up to 1 in 200 individuals. When it causes left ventricular outflow tract (LVOT) obstruction, treatment is indicated to reduce symptoms and the risk of sudden cardiac death. Pharmacologic therapy is the first line treatment, however if 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 have been demonstrated as safe and effective treatments; however, myectomy is the gold standard with a significantly lower complication rate and more complete and longstanding reduction of LVOT obstruction...
July 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28944182/right-ventricle-myectomy
#4
Konstantin V Borisov
Right ventricular (RV) hypertrophy is common in patients with hypertrophic cardiomyopathy (HCM), and is associated with more severe disease. Conventional surgical strategies such as the traditional Morrow procedure pose a particularly high risk to patients with severe hypertrophy and RV obstruction, for whom the most appropriate therapeutic approach has not yet been established. We have proposed a new technique for surgical correction in patients with hypertrophic obstructive cardiomyopathy and severe hypertrophy, which involves approaching the area of obstruction by entering through the conal part of the RV...
July 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28944181/septal-myectomy-after-failed-septal-alcohol-ablation
#5
Eduard Quintana, Pietro Bajona, María José Arguis, Susanna Prat-González
Despite septal myectomy remaining the gold standard septal reduction therapy for hypertrophic obstructive cardiomyopathy (HOCM), there has been a disproportionate use of alcohol septal ablation (ASA) worldwide. Absolute resolution of left ventricular outflow tract (LVOT) obstruction with ASA is not achieved in a substantial proportion of patients. The mechanisms of failure from ASA are partially understood and described. Residual obstruction in hypertrophic cardiomyopathy is associated with worse clinical outcomes and mortality...
July 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28944180/surgical-management-of-atrial-fibrillation-at-the-time-of-septal-myectomy
#6
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/28944179/hypertrophic-cardiomyopathy-in-children
#7
Arman Arghami, Joseph A Dearani, Sameh M Said, Patrick W O'Leary, Hartzell V Schaff
Hypertrophic cardiomyopathy (HCM) occurs in 1 of 500 adults and is considered to be one of the most common causes of death in young people under 35 years of age. Children with HCM are usually asymptomatic and the overall annual mortality beyond the first year of life is 1%. Septal myectomy is safe and effective in children with obstructive HCM and published data shows improved late survival compared to untreated HCM. Patient selection and surgical expertise remain critical components to ensuring successful outcomes of septal myectomy, particularly when considering prophylactic myectomy in a seemingly asymptomatic patient...
July 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28944178/alcohol-septal-ablation-in-which-patients-and-why
#8
Paolo Spirito, Jessica Rossi, Barry J Maron
At present, surgical septal myectomy is regarded as the "gold standard" treatment for most patients with obstructive hypertrophic cardiomyopathy (HCM) and drug-refractory symptoms. However, the best results are obtained by those surgeons who have extensive experience with this operation at a small number of referral centers. In the mid-1990s, percutaneous alcohol septal ablation was introduced as an alternative to myectomy to reduce LV outflow gradient and heart failure symptoms in patients with obstructive HCM...
July 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28944177/isolated-septal-myectomy-for-hypertrophic-obstructive-cardiomyopathy-an-update-on-the-toronto-general-hospital-experience
#9
Rachel D Vanderlaan, Anna Woo, Anthony Ralph-Edwards
BACKGROUND: Isolated septal myectomy is considered the gold standard for refractory left ventricular outflow tract (LVOT) obstruction at centers with dedicated hypertrophic obstructive cardiomyopathy (HOCM) surgeons. In this paper, we provide an update on the Toronto General Hospital (TGH) experience for isolated septal myectomy and comment on the safety and efficacy of myectomy in patients with thin basal septal thickness at our institution. METHODS: We retrospectively reviewed all patients undergoing surgical myectomy at our institution from January 2012 to August 2016...
July 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28944176/results-of-surgical-septal-myectomy-for-obstructive-hypertrophic-cardiomyopathy-the-tufts-experience
#10
Hassan Rastegar, Griffin Boll, Ethan J Rowin, Noreen Dolan, Catherine Carroll, James E Udelson, Wendy Wang, Philip Carpino, Barry J Maron, Martin S Maron, Frederick Y Chen
BACKGROUND: For over 50 years, surgical septal myectomy has been the preferred treatment for drug-refractory heart failure symptoms in patients with obstructive hypertrophic cardiomyopathy (HCM). Over this time in the United States, the majority of myectomy operations have been performed in a small number of select referral centers. METHODS: We have taken the opportunity to report results from the relatively new Tufts HCM Center and surgical program, incorporated 13 years ago, during which 507 myectomies (52±14 years of age; 56% male) were performed by one cardiothoracic surgeon, Dr...
July 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28944175/long-term-outcome-of-simultaneous-septal-myectomy-and-anterior-mitral-leaflet-retention-plasty-in-hypertrophic-obstructive-cardiomyopathy-the-berlin-experience
#11
Eva Maria Delmo Walter, Mariano Francisco Javier, Roland Hetzer
BACKGROUND: Various surgical strategies designed to relieve left ventricular outflow tract obstruction (LVOTO) and correct mitral regurgitation (MR) in hypertrophic obstructive cardiomyopathy (HOCM) have evolved, yet reports on the long-term outcomes of each technique are scarce. We provide an update on over 20 years' experience at our institution in the standardized surgical treatment of HOCM. METHODS: Between April 1986 and April 2014, 320 cases of endomyocardial resection and 305 septal myectomies were performed at our institution...
July 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28944174/hypertrophic-obstructive-cardiomyopathy-the-leipzig-experience
#12
Jawad Khalil, Michael Kuehl, Pirose Davierwala, Friedrich Wilhelm Mohr, Martin Misfeld
BACKGROUND: Management of hypertrophic obstructive cardiomyopathy (HOCM) has evolved considerably over the last fifty years, and includes medical treatment as well as septal myectomy (SM) to relief symptoms caused by left ventricular outflow tract obstruction (LVOTO). We report the Leipzig Heart Center experience in the surgical management of patients with HOCM. METHODS: We collected data from all patient treated surgically with a myectomy for LVOTO in patients with HOCM between 1997 and 2016...
July 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28944173/hypertrophic-obstructive-cardiomyopathy-the-mayo-clinic-experience
#13
Kunal D Kotkar, Sameh M Said, Joseph A Dearani, Hartzell V Schaff
BACKGROUND: Hypertrophic cardiomyopathy (HCM) is a primary myocardial disease characterized by left ventricular hypertrophy in the absence of other etiologies. Clinical presentation may vary from asymptomatic to sudden cardiac death. Medical treatment is the first-line therapy for symptomatic patients. Extended left ventricular septal myectomy is the procedure of choice if medical treatment is unsuccessful or intolerable. MAYO CLINIC EXPERIENCE: More than 3,000 patients have had septal myectomy for HCM at the Mayo Clinic (MN, USA) from 1993 to 2016...
July 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28944172/surgical-treatment-for-hypertrophic-cardiomyopathy-a-historical-perspective
#14
REVIEW
Dustin Hang, Anita Nguyen, Hartzell V Schaff
Our understanding of hypertrophic cardiomyopathy (HCM) as a disease entity has increased dramatically over the last half century. There has been a concerted effort by several surgical groups to develop operative techniques to relieve left ventricular outflow tract (LVOT) obstruction and alleviate symptoms. This paper traces the development of transaortic septal myectomy, the current gold standard therapy for relief of LVOT obstruction, in symptomatic patients refractory to medical treatment. In addition, we introduce newer methods for myectomy that have expanded the role of surgery in patients with various forms of HCM...
July 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28944171/current-state-of-the-art-and-future-of-myectomy
#15
REVIEW
Magdi H Yacoub, Ahmed Afifi, Hesham Saad, Heba Aguib, Ahmed ElGuindy
Surgical relief of left ventricular outflow tract obstruction (LVOTO) in hypertrophic cardiomyopathy (HCM) requires more than septal myectomy. The procedure is currently the gold standard for all symptomatic HCM patients except those with comorbidities. The operation requires an individualized approach to restore the sophisticated functions of the left ventricular outflow tract (LVOT) without injury to the surrounding vital structures. The procedure should be tailored to deal with all the varied components of the obstruction including fibrous trigones, accessory tissues, and papillary muscle fusion...
July 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28943481/spiral-activation-of-superior-vena-cava-the-utility-of-ultra-high-resolution-mapping-for-caval-isolation
#16
Seigo Yamashita, Michifumi Tokuda, Ryota Isogai, Kenichi Tokutake, Kenichi Yokoyama, Ryohsuke Narui, Mika Kato, Shinichi Tanigawa, Keiichi Inada, Seiichiro Matsuo, Satoru Miyanaga, Kenichi Sugimoto, Michihiro Yoshimura, Teiichi Yamane
BACKGROUND: Little is known about the manner in which the superior vena cava (SVC) is activated during sinus rhythm (SR). OBJECTIVE: To assess the manner of caval activation with ultra-high-density mapping system (Ryhthmia™) and its utility for SVC isolation. METHODS: Forty atrial fibrillation (AF) patients (55±12 years, paroxysmal AF in 23) who underwent SVC mapping with Ryhthmia™ were studied. The location of the sinus node (SN), phrenic nerve (PN) and caval activation manner during SR were analyzed...
September 21, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28941985/stimulation-of-ganglionated-plexus-attenuates-cardiac-neural-remodeling-and-heart-failure-progression-in-a-canine-model-of-acute-heart-failure-post-myocardial-infarction
#17
Da Luo, Huihui Hu, Zhiliang Qin, Shan Liu, Xiaomei Yu, Ruisong Ma, Wenbo He, Jing Xie, Zhibing Lu, Bo He, Hong Jiang
BACKGROUND: Heart failure (HF) is associated with autonomic dysfunction. Vagus nerve stimulation has been shown to improve cardiac function both in HF patients and animal models of HF. The purpose of this present study is to investigate the effects of ganglionated plexus stimulation (GPS) on HF progression and autonomic remodeling in a canine model of acute HF post-myocardial infarction. METHODS AND RESULTS: Eighteen adult mongrel male dogs were randomized into the control (n=8) and GPS (n=10) groups...
September 18, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28941606/new-developments-in-hypertrophic-cardiomyopathy
#18
REVIEW
Robert M Cooper, Claire E Raphael, Max Liebregts, Nandan S Anavekar, Josef Veselka
Hypertrophic cardiomyopathy is the leading cause of sudden death in young individuals and an important cause of heart failure at any age. In this review we discuss advances in investigation and management of this heterogenous disease. Improved cardiac imaging has allowed us to detail many of the structural abnormalities whereas the use of new techniques, predominantly in cardiac magnetic resonance imaging, has given us a greater insight in to tissue architecture, mechanism of contractile abnormalities, and function...
October 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28940991/guidewire-electrosurgery-assisted-trans-septal-puncture
#19
Jaffar M Khan, Toby Rogers, Marvin H Eng, Robert J Lederman, Adam B Greenbaum
OBJECTIVES: Electrifying a coronary guidewire may be a simple escalation strategy when trans-septal needle puncture is unsuccessful. BACKGROUND: Radiofrequency energy to facilitate trans-septal puncture through a dedicated device is costly and directly through a trans-septal needle may be less safe. Our technique overcomes these limitations. METHODS: The technique was used in patients when trans-septal needle penetration failed despite excessive force or tenting of the atrial septum...
September 20, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28940541/ebstein-anomaly-and-sudden-childhood-death
#20
Amanda Freeman, Roger W Byard
A 13-year-old girl is reported who died suddenly and unexpectedly in her sleep from previously undiagnosed Ebstein anomaly. At autopsy, there was dilatation of the right atrium with marked dilatation of the right auricle and apical displacement of the tricuspid valve into the right ventricular cavity with atrialization of the upper portion of the right ventricle. There were also prominent dysplastic changes in both the septal and posterior leaflets of the tricuspid valve with thickening of the valve and fusion of leaflets to the wall of the ventricle...
September 20, 2017: Journal of Forensic Sciences
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