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https://www.readbyqxmd.com/read/29023732/murmur-intensity-in-adult-dogs-with-pulmonic-and-subaortic-stenosis-reflects-disease-severity
#1
D Caivano, D Dickson, M Martin, M Rishniw
OBJECTIVES: The aims of this study were to determine whether murmur intensity in adult dogs with pulmonic stenosis or subaortic stenosis reflects echocardiographic disease severity and to determine whether a six-level murmur grading scheme provides clinical advantages over a four-level scheme. MATERIALS AND METHODS: In this retrospective multi-investigator study on adult dogs with pulmonic stenosis or subaortic stenosis, murmur intensity was compared to echocardiographically determined pressure gradient across the affected valve...
October 11, 2017: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/28939249/sudden-cardiac-death-in-a-dog-during-holter-recording-r-on-t-phenomenon
#2
T Gunasekaran, R A Sanders
A 6-year-old castrated male Golden Retriever was diagnosed with severe subaortic stenosis with severe left atrial enlargement and high heart rate due to atrial fibrillation. Treatment with digoxin and diltiazem to control ventricular response rate was initiated. Ambulatory electrocardiographic monitoring (Holter monitoring) was performed at the beginning of treatment and was repeated to evaluate the patient's response to drug therapy. Drug dose adjustments were made based on response to therapy as assessed by Holter monitoring...
October 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28878105/percutaneous-balloon-dilation-of-discrete-subaortic-stenosis-a-futile-exercise
#3
Nagaraja Moorthy, Rajiv Ananthakrishna, Dattatreya P V Rao, Satvic C Manjunath, Manjunath C Nanjappa
Discrete subaortic stenosis (DSS) is a progressive obstruction of left ventricular outflow tract (LVOT) resulting in the development of aortic regurgitation in its natural course. Hence, early intervention is recommended. Percutaneous balloon dilation of DSS has been reported and can substantially reduce LVOT pressure gradient. The response to balloon dilation of DSS is transient and may complicate with chordal or papillary muscle rupture. Hence, balloon dilation of DSS should be discouraged.
September 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28820560/severe-valvular-aortic-stenosis-and-fixed-subvalvular-aortic-stenosis-a-rare-and-challenging-combination
#4
Ayman Elbadawi, Marwan Saad, Islam Y Elgendy, Basarat Baig, Farhad Abtahian
A 58-year-old man with a history of hypertension presented with accelerating angina. Transthoracic echocardiography revealed a thickened aortic valve with pressure gradients and an estimated aortic valve area suggestive of mild aortic stenosis. Left heart catheterization demonstrated non-significant coronary artery disease. Pressure tracings showed a high left ventricular pressure and a mean gradient across the aortic valve of 69 mmHg. Subsequent transesophageal echocardiography revealed a subvalvular aortic stenosis that was secondary to the subaortic membrane, with severe valvular aortic stenosis...
March 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28770306/prenatal-echocardiographic-predictors-of-postnatal-management-strategy-in-the-fetus-with-right-ventricle-hypoplasia-and-pulmonary-atresia-or-stenosis
#5
Li Cao, Zhiyun Tian, Jack Rychik
Fetuses with pulmonary atresia or pulmonary stenosis with intact ventricular septum manifest variable degrees of right ventricle hypoplasia and inadequacy. We studied the relationship between prenatal echocardiographic parameters and their progression through gestation as potential predictors of postnatal single-ventricle or two-ventricle care strategy. Serial fetal echocardiograms of pulmonary atresia (n = 28) or severe pulmonary stenosis (n = 8) and intact ventricular septum were reviewed. Measurements included tricuspid valve and mitral valve diameter and Z scores, degree of tricuspid regurgitation, presence of subaortic stenosis, presence of coronary artery fistulae, and Doppler pulsatility indices in middle cerebral and umbilical artery...
August 2, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28655532/surgical-relief-of-left-ventricular-outflow-tract-obstruction-in-adults-with-congenital-aortic-stenosis-and-associated-aortic-annulus-hypoplasia-and-or-subaortic-obstruction
#6
Tanveer Ahmad, Amalan Thuraisingam, Marco Larobina, Peter Skillington
BACKGROUND: In children and adolescents, a Ross/Konno operation is commonly done to both enlarge the aortic root and provide a competent aortic valve with relief of left ventricular outflow tract obstruction (LVOTO). Optimum management is not so straightforward in adults. METHODS: Between 1995 and 2014, 16 patients of mean age 39.4 years (18-57 years) with hypoplastic aortic annulus (AA) measuring 20mm and less, and mean aortic valve/LVOT gradient of 61mmHg (30-70mmHg) presented for surgery...
June 3, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28636718/trends-and-outcomes-of-off-label-use-of-transcatheter-aortic-valve-replacement-insights-from-the-ncdr-sts-acc-tvt-registry
#7
Ravi S Hira, Sreekanth Vemulapalli, Zhuokai Li, James M McCabe, John S Rumsfeld, Samir R Kapadia, Mahboob Alam, Hani Jneid, Creighton Don, Mark Reisman, Salim S Virani, Neal S Kleiman
Importance: Transcatheter aortic valve replacement (TAVR) was approved by the US Food and Drug Administration for severe aortic stenosis in patients who cannot undergo surgery and for patients at high operative risk. Use of TAVR for off-label indications has not been previously reported. Objective: To evaluate patterns and adverse outcomes of off-label use of TAVR in US clinical practice. Design, Setting and Participants: Patients receiving commercially funded TAVR in the United States are included in the Transcatheter Valve Therapy Registry...
August 1, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/28633276/heart-failure-caused-by-misdiagnosed-subaortic-stenosis-in-adulthood-lesson-for-daily-practice
#8
Gabriela Dostálová, Zuzana Hlubocká, Tomáš Paleček, Vladimír Černý, Tomáš Grus, Jaroslav Lindner, Aleš Linhart
No abstract text is available yet for this article.
July 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28609808/resection-of-subaortic-membrane-for-discrete-subaortic-stenosis
#9
Sachin Talwar, Abhishek Anand, Saurabh Kumar Gupta, Sivasubramanian Ramakrishnan, Shyam Sunder Kothari, Anita Saxena, Rajnish Juneja, Shiv Kumar Choudhary, Balram Airan
BACKGROUND: We reviewed the long-term results of surgery for discrete subaortic membrane (SubAM) from a single institute. METHODS: A retrospective review of medical records of all patients (n = 146) who underwent resection of a SubAM for discrete subaortic stenosis between 1990 and 2015 at the All India Institute of Medical Sciences, New Delhi, India was undertaken. RESULTS: Median age at surgery was 9.0 years (9 months-47 years). There was one early death...
July 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28557866/imaging-adult-patients-with-discrete-subvalvar-aortic-stenosis
#10
Alexander R Opotowsky, Sarah S Pickard, Tal Geva
PURPOSE OF REVIEW: Distinction between discrete subvalvar aortic stenosis and other causes of left ventricular outflow obstruction has important implications for predicting natural history and guiding the timing and type of intervention. Imaging, primarily transthoracic echocardiography (TTE), plays a pivotal role in the diagnosis and management of adults with subvalvar aortic stenosis. RECENT FINDINGS: Most systematic research on imaging of subvalvar aortic stenosis has focused on echocardiography...
September 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28508142/when-is-it-better-to-wait-surgical-timing-and-recurrence-risk-for-children-undergoing-repair-of-subaortic-stenosis
#11
Brett R Anderson, Jennifer E Tingo, Julie S Glickstein, Paul J Chai, Emile A Bacha, Alejandro J Torres
Recurrence of subaortic stenosis (SAS) after surgery is common in children. The effects of patient characteristics and surgical timing on disease recurrence are largely unknown. We performed a retrospective study, assessing the relative effects of patient age and left ventricular outflow tract (LVOT) gradient on the need for reoperation for recurrent SAS. We included all children <20 years of age who underwent initial surgical resection of SAS at our center, January 2003-December 2013. Stratified logistic regression was performed, considering the effects of patient demographics, clinical characteristics, echocardiographic parameters, and operative technique, and clustering standard errors by surgeon...
August 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28330643/transcatheter-treatment-of-subaortic-stenosis-via-transcaval-access
#12
Norihiko Kamioka, Ateet Patel, Stamatios Lerakis, Ioannis Parastatidis, Jessica Forcillo, Frank Corrigan, Vinod Thourani, Peter Block, Vasilis Babaliaros
No abstract text is available yet for this article.
April 10, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28225973/do-you-know-this-syndrome-leopard-syndrome
#13
Flávio Heleno da Silva Queiroz Cançado, Luis Candido Pinto da Silva, Paulo Franco Taitson, Ana Carolina Dias Viana de Andrade, Matheus Melo Pithon, Dauro Douglas Oliveira
Hypertrophic cardiomyopathy is known as Leopard syndrome, which is a mnemonic rule for multiple lentigines (L), electrocardiographic conduction abnormalities (E), ocular hypertelorism (O), pulmonary stenosis (P), abnormalities of genitalia (A), retardation of growth (R), and deafness (D). We report the case of a 12-year-old patient with some of the abovementioned characteristics: hypertelorism, macroglossia, lentigines, hypospadias, cryptorchidism, subaortic stenosis, growth retardation, and hearing impairment...
January 2017: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28203542/robotic-trans-atrial-and-trans-mitral-ventricular-septal-resection
#14
REVIEW
W Randolph Chitwood
Localized ventricular septal hypertrophy, also known as idiopathic hypertrophic subaortic stenosis or idiopathic hypertrophic subaortic septal obstruction (IHSS), can create severe ventricular outflow obstruction. This often results in a high sub-aortic pressure gradient with potentially lethal symptoms. In 1960, Braunwald described the hemodynamic characteristics of IHSS, and thereafter, Morrow developed a trans-aortic approach to resect a large part of the ventricular septum, enlarging the outflow tract. The Morrow operation has remained the gold standard for surgically treating this pathology...
January 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28117226/aortoseptal-angle-and-pressure-gradient-reduction-following-balloon-valvuloplasty-in-dogs-with-severe-subaortic-stenosis
#15
L Shen, A H Estrada, E Côté, M A Powell, B Winter, K Lamb
INTRODUCTION: To determine the relationship between aortoseptal angle (AoSA) and the short- and long-term systolic pressure gradient (PG) reduction following combined cutting and high-pressure balloon valvuloplasty (CB/HPBV) in dogs with severe subaortic stenosis. ANIMALS: Retrospective study of 22 client-owned dogs of various breeds with severe subaortic stenosis (mean left ventricular to aortic PG = 143 mmHg; range = 80-322 mmHg) that underwent CB/HPBV...
April 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28072626/acquired-coronary-artery-disease-in-adult-patients-with-congenital-heart-disease-a-true-or-a-false-problem
#16
Alessandro Giamberti, Mauro Lo Rito, Erika Conforti, Alessandro Varrica, Mario Carminati, Alessandro Frigiola, Lorenzo Menicanti, Massimo Chessa
BACKGROUND: The population of adults with congenital heart disease (ACHD) is increasing and aging, and a large percentage of this population is now over 65 years of age. For this reason, it is probable that acquired coronary artery disease (CAD) will become an important issue that needs to be addressed also in these patients. We retrospectively analyzed all ACHD patients who underwent surgery in our Institution with the aim to investigate the incidence of associated CAD and the results of surgical treatment...
August 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/27956040/shone-complex-an-under-recognized-congenital-heart-disease-with-substantial-morbidity-in-adulthood
#17
Sajid Aslam, Paul Khairy, Azadeh Shohoudi, Lise-Andrée Mercier, Annie Dore, François Marcotte, Joaquim Miró, Pablo Avila-Alonso, Réda Ibrahim, Anita Asgar, Nancy Poirier, François-Pierre Mongeon
BACKGROUND: Shone complex consists of a constellation of left-sided, usually obstructive, cardiac lesions, including supravalvar mitral ring, parachute mitral valve, subaortic stenosis, and aortic coarctation. Incomplete Shone complex consists of a mitral valve anomaly associated with lesions involving the subaortic region, aortic valve, or thoracic aorta. There is a paucity of data regarding long-term outcomes in adults with Shone complex. METHODS: We reviewed records of adults with complete or incomplete Shone complex followed at the Montreal Heart Institute between 1982 and 2014...
February 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/27751257/acquired-discrete-subaortic-stenosis-late-after-mitral-valve-replacement
#18
Jagdish C Mohan, Madhu Shukla, Vishwas Mohan, Arvind Sethi
Although acquired left ventricular outflow obstruction has been reported in a variety of conditions, there are scant reports of its occurrence following mitral valve replacement (MVR). This study describes two female patients, who developed severe discrete subaortic stenosis, five years following MVR. In both cases, the mitral valve was replaced by a porcine Carpentier-Edwards 27-mm bioprosthesis with preservation of mitral valve leaflets. The risk of very late left ventricular outflow tract obstruction after bio-prosthetic MVR with preservation of subvalvular apparatus needs to be kept in mind in symptomatic patients...
September 2016: Indian Heart Journal
https://www.readbyqxmd.com/read/27728044/ctga-with-infundibular-pulmonary-stenosis-with-subaortic-vsd-with-dextrocardia-situs-solitus-presenting-with-atypical-atrioventricular-nodal-reentrant-tachycardia
#19
Ashwin Kodliwadmath, Vasudeva Naik, Shetty Shivakumar
No abstract text is available yet for this article.
January 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27681035/aortic-valve-repair-in-the-paediatric-population-insights-from-a-38-year-single-centre-experience
#20
Alain J Poncelet, Gébrine El Khoury, Laurent De Kerchove, Thierry Sluysmans, Stéphane Moniotte, Mona Momeni, Thierry Detaille, Jean E Rubay
OBJECTIVES: To analyse our institutional results in the setting of paediatric aortic valve (AV) repair. Primary end-points were overall survival, freedom from AV reoperation and freedom from AV replacement. METHODS: A retrospective analysis of all patients under 18 years of age operated on from 1977 to 2015 in a single tertiary care level institution. Patients were included if they benefited from any type of AV repair procedure, including commissurotomy, leaflet shaving or plication, or leaflet augmentation...
January 2017: European Journal of Cardio-thoracic Surgery
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