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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
#1
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/27899861/echocardiographic-follow-up-of-patent-foramen-ovale-and-the-factors-affecting-spontaneous-closure
#2
Ali Yildirim, Alperen Aydin, Tevfik Demir, Fatma Aydin, Birsen Ucar, Zubeyir Kilic
BACKGROUND: The aim of the present study was to evaluate the echocardiographic follow-up of patent foramen ovale, which is considered a potential etiological factor in various diseases, and to determine the factors affecting spontaneous closure. METHODS: Between January 2000 and June 2012, records of 918 patients with patent foramen ovale were retrospectively reviewed. Patency of less than 3 mm around the fossa ovalis is called patent foramen ovale. Patients with cyanotic congenital heart diseases, severe heart valve disorders and severe hemodynamic left to right shunts were excluded from the study...
November 2016: Acta Cardiologica Sinica
https://www.readbyqxmd.com/read/27891259/neurocardiogenic-syncope-and-supraventricular-tachycardia-in-association-with-a-rare-congenital-aortic-valve-abnormality
#3
Yashwant Agrawal, Jagadeesh K Kalavakunta, Vishal Gupta, William Lapenna
We report a case of a 26-year-old woman who presented with multiple episodes of syncope over a five-months period of time. Transthoracic echocardiogram had shown a normal functioning quadricuspid aortic valve (QAV) which was also confirmed on a transesophageal echocardiogram. Computed tomographic angiography of heart and coronary arteries showed the QAV with equal size of all aortic cusps and normal coronary arteries. Intermittent chest pain and palpitations warranted an exercise stress test. The stress test revealed normal aerobic exertion, with achievement of 101% of maximal peak heart rate...
2016: Case Reports in Cardiology
https://www.readbyqxmd.com/read/27873227/the-relationship-between-aortic-root-size-and-hypertension-an-unsolved-conundrum
#4
Giuseppe Mulè, Emilio Nardi, Massimiliano Morreale, Antonella Castiglia, Giulio Geraci, Dario Altieri, Valentina Cacciatore, Margherita Schillaci, Francesco Vaccaro, Santina Cottone
Thoracic aortic aneurysms rupture and dissection are among the most devastating vascular diseases, being characterized by elevated mortality, despite improvements in diagnostic imaging and surgical techniques.An increased aortic root diameter (ARD) represents the main risk factor for thoracic aortic dissection and rupture and for aortic valve regurgitation.Even though arterial hypertension is commonly regarded as a predisposing condition for the development of thoracic aorta aneurysms, the role of blood pressure (BP) as determinant of aortic root enlargement is still controversial...
November 22, 2016: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27866864/anatomical-histochemical-and-immunohistochemical-characterisation-of-the-cardiac-outflow-tract-of-the-silver-arowana-osteoglossum-bicirrhosum-teleostei-osteoglossiformes
#5
Miguel Lorenzale, Miguel A López-Unzu, M Carmen Fernández, Ana C Durán, Borja Fernández, M Teresa Soto-Navarrete, Valentín Sans-Coma
The cardiac outflow tract of chondrichthyans and actinopterygians is composed of a myocardial conus arteriosus and a non-myocardial bulbus arteriosus. In teleosts, the conus has been subjected to a reduction in size over the evolution in conjunction with the further development of the bulbus. Most studies on the outflow tract of the teleost heart refer to species of modern groups and are mainly devoted to the bulbus. Knowledge on the outflow tract of species belonging to early teleost groups is scarce. The aim here was to characterise the structure of the cardiac outflow tract of the silver arowana, a representative of the ancient teleost clade of the Osteoglossomorpha...
September 28, 2016: Zoology: Analysis of Complex Systems, ZACS
https://www.readbyqxmd.com/read/27862075/minimally-invasive-implantation-of-heartware-assist-device-and-simultaneous-tricuspid-valve-reconstruction-through-partial-upper-sternotomy
#6
Julia Hillebrand, Andreas Hoffmeier, Tonny Djie Tiong Tjan, Juergen R Sindermann, Christoph Schmidt, Sven Martens, Mirela Scherer
Left ventricular assist device (LVAD) implantation is a well-established therapy to support patients with end-stage heart failure. However, the operative procedure is associated with severe trauma. Third generation LVADs like the HeartWare assist device (HeartWare, Inc., Framingham, MA, USA) are characterized by enhanced technology despite smaller size. These devices offer new minimally invasive surgical options. Tricuspid regurgitation requiring valve repair is frequent in patients with the need for mechanical circulatory support as it is strongly associated with ischemic and nonischemic cardiomyopathy...
November 8, 2016: Artificial Organs
https://www.readbyqxmd.com/read/27861432/the-association-between-preoperative-hemoglobin-a1c-and-postoperative-glycemic-variability-on-30-day-major-adverse-outcomes-following-isolated-cardiac-valvular-surgery
#7
Amit Bardia, Kamal Khabbaz, Ariel Mueller, Priyam Mathur, Victor Novack, Daniel Talmor, Balachundhar Subramaniam
BACKGROUND: Preoperative hemoglobin A1c (HbA1c) and postoperative glycemic variability predict major adverse events (MAEs) after coronary artery bypass grafting in a protocolized glycemic control setting. However, the influence of preoperative HbA1c and postoperative glycemic variability in isolated cardiac valvular surgery is unknown. In this study, we sought to establish (a) whether preoperative HbA1c could identify patients at increased risk of MAEs and (b) whether postoperative glycemic variability was associated with MAEs after isolated cardiac valvular surgery...
November 17, 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27861426/mastering-mitral-leaflets-coaptation-after-valve-repair-with-adjustable-mitral-annuloplasty-ring-prove-of-concept-in-mock-loop-study
#8
Piergiorgio Tozzi, Daniel Hayoz, Carlo Antona, Gianfranco B Fiore, Giuseppe Siniscalchi, Enrico Ferrari, Gérard Baeriswyl, Riccardo Vismara
This investigation sought to determine the feasibility of a novel mitral ring designed to reshape mitral annulus on beating heart, after surgery. The mitral ring is intended to improve mitral leaflets coaptation to correct residual and recurrent mitral regurgitations. It could also provide progressive correction of mitral regurgitation. The device was tested in ex vivo beating heart model.The novel mitral ring is selectively deformable in P1, P2 and P3 segments using a dedicated angioplasty-type balloon. The deformation should increase leaflets' coaptation reducing distance between the two leaflets...
November 15, 2016: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/27859331/two-dimensional-echocardiographic-right-ventricle-measurements-adjusted-to-body-mass-index-and-surface-area-in-a-normal-population
#9
Masood Eslami, Farnoush Larti, Mehrdad Larry, Parisa Molaee, Roya Sattarzadeh Badkoobeh, Anahita Tavoosi, Saeed Safari, Amir Farhang Zand Parsa
BACKGROUND: To determine reference echocardiographic values in a normal population and assess their correlation with body mass index (BMI) and body surface area. METHODS: An expert cardiologist performed two-dimensional echocardiography with triplicate right ventricle (RV) size measurements in 80 subjects with normal heart condition. Results were correlated with anthropometric data. RESULTS: Base-to-apex length in four-chamber view (RVD3) and above-pulmonic valve in short-axis view in males, as well as mid-RV diameter in standard four-chamber view (RVD), basal RV diameter, and mid RV diameter in RV-focused four-chamber view in females, were significantly correlated with BMI...
November 14, 2016: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/27852478/transcatheter-mitral-valve-in-valve-therapy
#10
REVIEW
Jose F Condado, Brian Kaebnick, Vasilis Babaliaros
Valve-in-valve and valve-in-ring transcatheter mitral valve replacement can be used in for the treatment of inoperable patients with failing mitral surgical bioprosthesis or valve repairs. Preprocedural multi-image evaluation by a heart team must include transthoracic echocardiogram, transesophageal echocardiogram, and cardiac computed tomography angiography (CTA). CTA is used to determine access site (transapical, transseptal, or transatrial), transcatheter valve size, and landing zone. Though complications can occur (ie, valve embolization, bleeding, or vascular complications), this less invasive procedure has a reported success rate of 70% to 100% and is now increasingly used...
January 2016: Interventional cardiology clinics
https://www.readbyqxmd.com/read/27832045/proof-of-concept-of-an-endoscopic-sutureless-valve-sizer
#11
Marco Vola, Juan Pablo Maureira, Vito Giovanni Ruggieri, Jean-François Fuzellier, Salvatore Campisi, Jean-Pierre Favre, Antoine Gerbay, Thierry A Folliguet
OBJECTIVE: In this paper, we present an endoscopic expandable sizer conceived to allow thoracoscopic aortic valve replacement with a sutureless prosthesis using a dynamic sizing of the aortic annulus. METHODS: Ten aortic torsos were prepared using a five-trocar thoracoscopic setting. Once the aortotomy was performed and the aortic valve leaflets removed, the technical feasibility of the endoscopic sizing (introduction into the trocar, expansion into the aortic annulus, determination of the valve size, and retraction) with the device was assessed...
September 2016: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/27825670/left-atrial-volume-and-function-in-dogs-with-naturally-occurring-myxomatous-mitral-valve-disease
#12
M Höllmer, J L Willesen, A Tolver, J Koch
OBJECTIVE: Myxomatous mitral valve disease (MMVD) induces progressive left atrial (LA) enlargement. The LA modulates left ventricular filling and performance through its reservoir, conduit, and contractile function. Assessment of LA size and function may provide valuable information on the level of cardiac compensation. Left atrial function in dogs with naturally occurring MMVD remains largely unexplored. The objective of this study was to evaluate LA volume and function in dogs with naturally occurring MMVD...
November 5, 2016: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/27818021/therapeutic-strategy-for-functional-tricuspid-regurgitation-in-patients-undergoing-mitral-valve-repair-for-severe-mitral-regurgitation
#13
Takeshi Kitai, Yutaka Furukawa, Kenta Murotani, Chayakrit Krittanawong, Shuichiro Kaji, Tadaaki Koyama, Yukikatsu Okada
BACKGROUND: The aim of this study was to determine optimal patient selection and selection of a prosthetic ring size for tricuspid valve (TV) repair at the time of mitral valve (MV) repair. METHODS: We prospectively enrolled 167 consecutive patients undergoing MV repair. TV repair was indicated if patients had at least one of the following conditions representing tricuspid annular dilatation: (1) tricuspid regurgitation (TR)≥moderate, (2) history of right heart failure, (3) atrial fibrillation, and (4) pulmonary hypertension...
October 25, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27777697/study-of-the-normal-heart-size-in-northwest-part-of-iranian-population-a-cadaveric-study
#14
Shabnam Mohammadi, Arya Hedjazi, Maryam Sajjadian, Naser Ghoroubi, Maryam Mohammadi, Saeed Erfani
Introduction: The heart is in a muscular organ in the middle mediastinum. According to our knowledge, there is no standard data about the anthropologic parameters of normal Iranian hearts. Hence, the aim of the present study was to investigate the normal heart size in Iranian cadavers. Methods: In a cross-sectional study, 550 cadavers (104 female/446 male) from June 2014 to July 2015 in the Razavi Khorasan province of Iran were included in the study. After approval of the Ethical Committee, cadavers were divided into 10 groups based on age groups...
2016: Journal of Cardiovascular and Thoracic Research
https://www.readbyqxmd.com/read/27776914/the-fate-of-small-size-pericardial-heart-valve-prostheses-in-an-older-patient-population
#15
Ruggero De Paulis, Salvatore D'Aleo, Alessandro Bellisario, Andrea Salica, Luca P Weltert, Raffaele Scaffa, Lorenzo Guerrieri Wolf, Daniele Maselli, Michele Di Mauro
BACKGROUND: Structural valve deterioration (SVD) is the Achilles' heel of bioprostheses. Its correlation with younger age is well known. In recent years we exclusively reserved use of small-size Mitroflow valve prostheses (LivaNova, London, United Kingdom) to an older patient population with small aortic annuli. This study aimed to assess the incidence of SVD and its effect on patient survival and need for reoperation. MATERIALS AND METHODS: Two hundred five patients (aged 75...
September 28, 2016: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/27759926/paravalvular-leaks-one-size-or-shape-doesn-t-always-fit-all
#16
Andre Paixao, Mehmet Cilingiroglu
Paravalvular leak (PVL) remains as uncommon but serious complication after surgical prosthetic valve implantation. PVL when associated which congestive heart failure, hemolytic anemia, or infective endocarditis may require percutaneous treatment. High-surgical risk is common in this population. Dedicated PVL devices are lacking often limiting optimal treatment.
October 2016: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/27757222/in-utero-origin-of-sex-related-differences-in-future-cardiovascular-disease
#17
Sarah Schalekamp-Timmermans, Jerome Cornette, Albert Hofman, Willem A Helbing, Vincent W V Jaddoe, Eric A P Steegers, Bero O Verburg
BACKGROUND: There are sex differences in the risk of development of cardiovascular disease (CVD). According to the developmental origins of health and disease paradigm (DOHaD), CVD originates in fetal life. This study examines fetal sex differences in cardiovascular development in utero. METHODS: In 1028 pregnant women, we assessed fetal circulation using pulsed wave Doppler examinations between 28 and 34 weeks gestation. To test associations between fetal sex and fetal circulation measurements, linear regression models were used adjusting for fetal size, gestational age, and fetal heart rate...
2016: Biology of Sex Differences
https://www.readbyqxmd.com/read/27749539/a-huge-saccular-aortic-aneurysm-compressing-right-coronary-artery-7-years-after-aortic-valve-replacement-due-to-bicuspid-aortic-valve-insufficiency-a-rare-case-report
#18
Sang Min Park, Haemin Jeong, Kyung-Soon Hong, Christopher Kim
BACKGROUND: In a patient underwent aortic valve replacement (AVR) due to bicuspid aortic valve (BAV) insufficiency without marked dilation of ascending aorta, the development of delayed-typed aneurysmal complication of ascending aorta has been often reported because the dilated aorta tends to grow insidiously with age. CASE SUMMARY: A 58-year-old man who underwent AVR with mechanical valve due to severe aortic regurgitation secondary to BAV 7 years previously presented with exertional chest discomfort for 1 year...
October 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27721218/not-for-adults-only-mitraclip-use-in-a-paediatric-patient
#19
Denise C Joffe, Thomas K Jones, Mark Reisman, Elizabeth Perpetua, Yuk Law, Andreas Schuler, G Burkhard Mackensen
We present the primary report of a paediatric patient who had placement of the MitraClip device for severe functional mitral regurgitation. The patient was a 14-year-old boy with symptomatic end-stage non-compaction type cardiomyopathy secondary to a mitochondrial cytopathy. He had severe mitral regurgitation, tricuspid valve regurgitation, a severely dilated LV with apical non-compaction, severe LV dysfunction and severe pulmonary hypertension. Despite optimal medical therapy he developed progressive symptoms of congestive heart failure and he was not a candidate for an assist device or cardiac transplantation...
October 10, 2016: EuroIntervention
https://www.readbyqxmd.com/read/27717424/the-role-of-echocardiography-and-intracardiac-exploration-in-the-evaluation-of-candidacy-for-biventricular-repair-in-patients-with-borderline-left-heart-structures
#20
Carlos M Mery, R Michael Nieto, Luis E De León, Shaine A Morris, Wei Zhang, John L Colquitt, Iki Adachi, Lauren C Kane, Jeffrey S Heinle, E Dean McKenzie, Charles D Fraser
BACKGROUND: Predictors for single ventricle palliation (SVP) or successful biventricular repair (BVR) in patients with borderline left-side heart structures are not well defined. The goal was to evaluate the role of echocardiography and intracardiac exploration in determining feasibility of BVR. METHODS: All neonates surgically treated from 1995 to 2015 with mitral valve (MV), aortic valve, or left ventricle end-diastolic dimension z score of -2 or less for whom management was controversial were included...
October 4, 2016: Annals of Thoracic Surgery
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