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Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology

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https://www.readbyqxmd.com/read/29289677/endocardial-fibroelastosis-in-two-related-tiger-cubs-panthera-tigris
#1
Kiira T Rodriguez, Andrew C Cushing, Carla Bernal, Ed C Ramsay, Linden E Craig, Rebecca E Gompf
Two tiger cubs (Panthera tigris) from the same litter were evaluated for suspected cardiac disease. Two cubs with a dilated cardiomyopathy phenotype were diagnosed with endocardial fibroelastosis based on necropsy and histopathologic examinations. Echocardiography revealed salient anatomic and functional aspects of this cardiac disorder. This is the first report of endocardial fibroelastosis in this species.
December 28, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/29277471/retrospective-evaluation-of-notched-qrs-complexes-in-dogs-85-cases
#2
R L Winter, R M Bates
INTRODUCTION: Notched QRS complexes on electrocardiography (ECG) have been described in veterinary and human reports, but little is known about this finding in veterinary patients. Therefore, the objectives of this study were to describe the signalment and cardiac disease diagnosis in dogs with notched QRS complexes, as well as to describe the specific leads and number of leads with notched QRS complexes on ECG. ANIMALS: Eighty-five dogs with notched QRS complexes of normal duration in at least one ECG lead...
December 22, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/29277470/poincar%C3%A3-plots-as-a-measure-of-heart-rate-variability-in-healthy-dogs
#3
R R Blake, D J Shaw, G J Culshaw, Y Martinez-Pereira
INTRODUCTION: Poincaré plots remain largely unused for heart rate variability (HRV) analysis in dogs. The aims of this study were to describe, qualitatively and quantitatively, Poincaré plots in healthy dogs, to compare them with other methods of HRV analysis, to assess their day-to-day variability and to investigate the effect of activity on the plots. ANIMALS: Twenty-five healthy dogs. METHODS: Poincaré plots, their standard descriptors, and other measures of HRV were generated from 24-hour ambulatory electrocardiographic recordings and 6 hours of rest and activity...
December 22, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/29277469/the-seisicat-study-a-pilot-study-assessing-efficacy-and-safety-of-spironolactone-in-cats-with-congestive-heart-failure-secondary-to-cardiomyopathy
#4
Rachel James, Emilie Guillot, Catherine Garelli-Paar, Jacqueline Huxley, Vanessa Grassi, Malcolm Cobb
INTRODUCTION: The pathophysiology of heart failure involves activation of several neurohormonal systems including the renin-angiotensin-aldosterone system. The mineralocorticoid receptor antagonist spironolactone has been shown to be beneficial in humans and dogs with heart failure. The objective of this pilot study was to investigate the efficacy and safety of spironolactone in cats with heart failure secondary to cardiomyopathy already treated with furosemide and an angiotensin-converting enzyme inhibitor...
December 22, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/29191414/comparative-anatomy-and-angiography-of-the-cardiac-coronary-venous-system-in-four-species-human-ovine-porcine-and-canine
#5
M-A Genain, A Morlet, M Herrtage, H Muresian, F Anselme, C Latremouille, F Laborde, L Behr, N Borenstein
INTRODUCTION: The coronary arterial system has been the subject of greater investigation than its venous system due to the importance of human coronary artery disease. With the advent of new percutaneous treatments, the anatomy of the coronary venous system has increasing relevancy. We compared the organization of the coronary venous circulation in three species commonly used in research and compared these to normal humans using both macroscopic anatomic and angiographic studies. ANIMALS: The anatomy of five explanted hearts from healthy dogs, pigs, and sheep were studied macroscopically, and 10 explanted hearts per animal species and 10 clinically normal human were examined by angiography...
November 27, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/29174197/comparison-of-cardiac-measurements-by-multi-detector-computed-tomography-angiography-and-transthoracic-echocardiography-in-english-bulldogs
#6
E T Hostnik, B A Scansen, A M Habing, G A Chiappone, R R Layman, R D White
INTRODUCTION: Transthoracic echocardiography (TTE) is the primary tool for the assessment of cardiac structure and function in dogs but is challenging in English bulldogs due to dorsoventral compression of the thorax, obesity, and narrow intercostal spaces. Multi-detector computed tomography angiography (CTA) may overcome the conformational obstacles of cardiac imaging in this breed. ANIMALS: Eleven client-owned English bulldogs. MATERIALS AND METHODS: Prospective clinical trial with paired analysis of TTE and CTA studies...
November 22, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/29174590/double-outlet-right-ventricle-with-subpulmonary-ventricular-septal-defect-taussig-bing-anomaly-and-other-complex-congenital-cardiac-malformations-in-an-american-quarter-horse-foal
#7
Rebecca Kohnken, Karsten Schober, Jennifer Godman, Alison Gardner, Tiffany Jenkins, Eric Schroeder, Peter Baker, Laura Dunbar
A 4-week-old American Quarter Horse colt presented with a recent history of diarrhea and decreased activity level. On initial physical examination, the animal was bright and alert and major findings were limited to a loud systolic heart murmur radiating widely over both sides of the thorax. While in the hospital, the clinical condition of the foal warranted further imaging to determine the cause and extent of cardiac disease. A variety of congenital cardiac malformations were identified during echocardiographic examination and autopsy, including a double outlet right ventricle and a subpulmonary interventricular septal defect (Taussig-Bing anomaly), ventricular inversion with atrioventricular discordance, tricuspid valve atresia, a septum primum interatrial septal defect, mitral valve dysplasia with a cleft in the septal mitral valve cusp, aortic, and subaortic stenosis, tubular hypoplasia of the ascending aorta and the aortic arch, a patent ductus arteriosus, an aberrant circumflex coronary artery, and aberrant left and right subclavian arteries...
November 21, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/29153849/cutting-balloon-and-high-pressure-balloon-dilation-for-palliative-treatment-of-congenital-double-chambered-right-ventricle-and-primary-infundibular-stenosis-in-a-golden-retriever-dog
#8
Karsten E Schober, Jaylyn Rhinehart, Rebecca Kohnken, John D Bonagura
Combined cutting balloon and high-pressure balloon dilation was performed in a dog with a double-chambered right ventricle and severe infundibular stenosis of the right ventricular outflow tract. The peak systolic pressure gradient across the stenosis decreased by 65% after dilation (from 187 mmHg before to 66 mmHg after) affirming the intervention as successful. However, early re-stenosis occurred within 3 months leading to exercise intolerance, exercise-induced syncope, and right-sided congestive heart failure...
November 16, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/29097107/echocardiographic-imaging-options-in-ovine-research-subjects
#9
M Colpitts, M Malinowski, R Phillion, R Coleman, L Mitchell, A Malone, L Eberhart, R Sanders, D Langholz
OBJECTIVES: To determine the feasibility of acquiring quality transesophageal (TEE), epicardial (EE), and intracardiac (ICE) echocardiographic images in ovine subjects and to discuss the merits of each technique with a focus on ICE image acquisition. ANIMALS: Eleven male castrated Dorset adult sheep. METHODS: Transesophageal echocardiography was performed under general anesthesia. Epicardial echocardiography was performed as part of an open chest (thoracotomy or sternotomy) experiment...
October 30, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/29089263/successful-balloon-angioplasty-of-pulmonary-artery-stenosis-in-two-cats%C3%A2-and%C3%A2-associated-complications
#10
Donald P Schrope, William D Tyrrell, Kristin A Jacob
Two cats (2.5 months and 8 months old) were each evaluated due to a loud systolic murmur, and each was diagnosed with severe pulmonary artery stenosis at the bifurcation of the main pulmonary artery. Echocardiograms confirmed significant right atrial dilation and right ventricular dilation and/or hypertrophy that was progressive in one cat. Atenolol was initiated and the cats were referred for interventional therapy. Balloon angioplasty was performed via the jugular vein. In case 1, the pressure gradient across the stenosis was reduced from 169...
October 28, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/29111286/role-of-computed-tomography-angiography-in-the-differentiation-of-feline-truncus-arteriosus-communis-from-pulmonary-atresia-with-ventricular-septal-defect
#11
Lauren E Markovic, Brian A Scansen, Brianna M Potter
Two domestic shorthair cats, a 6-month-old castrated male and a 7-month-old intact female, were diagnosed with complex congenital heart disease. Transthoracic echocardiography in both cats revealed a dilated arterial trunk overriding the interventricular septum with a large ventricular septal defect. The pulmonary trunk and branch pulmonary arteries were not visible using standard echocardiographic views in either cat. The differential diagnosis for both cats included truncus arteriosus communis vs. pulmonary atresia with ventricular septal defect...
October 27, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/29111285/reference-values-of-two-dimensional-and-m-mode-echocardiographic-measurements-as-a-function-of-body-size-in-various-equine-breeds-and-in-ponies
#12
A Al-Haidar, N Moula, A Leroux, F Farnir, S Deleuze, C Sandersen, H Amory
INTRODUCTION: The aim of this study was to establish echocardiographic reference values for the equine species using allometric regression equations based on body weight (BW) and thoracic circumference (TC). ANIMALS: A total of 239 horses or ponies were studied, including 65 warmbloods, 33 Standardbreds, 41 Thoroughbreds, 32 Arabian horses, 28 draft horses, and 40 ponies aged from 1 day to 30 years, weighing from 18 to 890 kg, with no evidence of cardiac disease...
October 27, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/29111284/two-dimensional-echocardiographic-estimates-of-left-atrial-function-in-healthy-dogs-and-dogs-with-myxomatous-mitral-valve-disease
#13
David Dickson, Domenico Caivano, Jose Novo Matos, Nuala Summerfield, Mark Rishniw
OBJECTIVES: To provide reference intervals for 2-dimensional linear and area-based estimates of left atrial (LA) function in healthy dogs and to evaluate the ability of estimates of LA function to differentiate dogs with subclinical myxomatous mitral valve disease (MMVD) and similarly affected dogs with congestive heart failure (CHF). ANIMALS: Fifty-two healthy adult dogs, 88 dogs with MMVD of varying severity. METHODS: Linear and area measurements from 2-dimensional echocardiographs in both right parasternal long and short axis views optimized for the left atrium were used to derive estimates of LA active emptying fraction, passive emptying fraction, expansion index, and total fractional emptying...
October 27, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/29111287/transcatheter-closure-of-a-small-atrial-septal-defect-with-an-amplatzer%C3%A2-patent-foramen-ovale-occluder-in-a-working-dog-with-cyanosis-and-exercise-intolerance-at-high-altitude
#14
A Shelden, S Wesselowski, S G Gordon, A B Saunders
A 6.5-year-old male Border Collie presented for transcatheter closure of an atrial septal defect due to exercise intolerance and cyanosis while working and training at altitude. A small, left-to-right shunting secundum atrial septal defect was confirmed with no evidence of significant right-sided volume overload. Pulmonary hypertension with subsequent right-to-left interatrial shunting occurring during exercise at high altitude was suspected and prompted the closure of the defect due to the dog's continued athletic requirements...
December 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28988688/plasma-n-terminal-pro-brain-natriuretic-peptide-concentrations-before-and-after-pericardiocentesis-in-dogs-with-cardiac-tamponade-secondary-to-spontaneous-pericardial-effusion
#15
R D Baumwart, A S Hanzlicek, S D Lyon, P M Lee
OBJECTIVE: To determine if concentrations of plasma N-terminal pro-brain natriuretic peptide (NT-proBNP) are increased in dogs with cardiac tamponade and if there is a significant increase in plasma NT-proBNP after pericardiocentesis. ANIMALS: Ten client-owned dogs with spontaneous cardiac tamponade. METHODS: Prospective clinical study. Cardiac tamponade was suspected from physical examination and confirmed with echocardiography. Blood was collected and plasma NT-proBNP concentrations were measured before and 30-60 min following pericardiocentesis and resolution of cardiac tamponade...
October 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28965673/european-society-of-veterinary-cardiology-screening-guidelines-for-dilated-cardiomyopathy-in-doberman-pinschers
#16
REVIEW
G Wess, O Domenech, J Dukes-McEwan, J Häggström, S Gordon
BACKGROUND: Dilated cardiomyopathy (DCM) is the most common cardiac disease in large breed dogs and is inherited in Doberman Pinschers with a high prevalence (58%). OBJECTIVE: The European Society for Veterinary Cardiology convened a task force to formulate screening guidelines for DCM in Dobermans. RECOMMENDATIONS: Screening for occult DCM in Dobermans should start at three years of age and use both Holter monitoring and echocardiography...
October 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28964709/anatomic-regurgitant-orifice-area-obtained-using-3d-echocardiography-as-an-indicator-of-severity-of-mitral-regurgitation-in-dogs-with-myxomatous-mitral-valve-disease
#17
S Müller, G Menciotti, M Borgarelli
OBJECTIVES: To determine feasibility and repeatability of measuring the anatomic regurgitant orifice area (AROA) using real-time three-dimensional transthoracic echocardiography (RT3DE) in dogs with myxomatous mitral valve disease (MMVD), and to investigate differences in the AROA of dogs with different disease severity and in different American College of Veterinary Internal Medicine (ACVIM) stages. ANIMALS: Sixty privately-owned dogs diagnosed with MMVD. METHODS: The echocardiographic database of our institution was retrospectively searched for dogs diagnosed with MMVD and RT3DE data set acquisition...
October 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28958795/heart-rate-turbulence-after-ventricular-premature-beats-in-healthy-doberman-pinschers-and-those-with-dilated-cardiomyopathy
#18
J D Harris, C J L Little, J M Dennis, M W Patteson
OBJECTIVES: To describe the measurement of heart rate turbulence (HRT) after ventricular premature beats and compare HRT in healthy Doberman pinschers and those with dilated cardiomyopathy (DCM), with and without congestive heart failure (CHF). ANIMALS: Sixty-five client-owned Dobermans: 20 healthy (NORMAL), 31 with preclinical DCM and 14 with DCM and CHF (DCM + CHF). METHODS: A retrospective study of data retrieved from clinical records and ambulatory ECG (Holter) archives, including data collected previously for a large-scale prospective study of Dobermans with preclinical DCM...
October 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28943125/electrocardiographic-echocardiographic-and-left-atrial-strain-imaging-features-of-a-dog-with-atrial-flutter-and-third-degree-atrioventricular-block
#19
M Baron Toaldo, G Romito, M Cipone, A Diana, M Tursi
A 14-year-old American Staffordshire terrier was presented for episodes of exercise-induced syncope. At admission, atrial flutter coupled to third-degree atrioventricular block was diagnosed electrocardiographically. On the second day of hospitalization, surface electrocardiogram revealed spontaneous conversion to sinus rhythm with persistence of atrioventricular block. Complete transthoracic echocardiograms were performed after each electrocardiographic examination. The combined use of conventional echocardiography with tissue Doppler imaging-based modalities allowed to investigate the atrial electromechanical correlation and function during typical atrial flutter and after its resolution...
October 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28939249/sudden-cardiac-death-in-a-dog-during-holter-recording-r-on-t-phenomenon
#20
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
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