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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/28314614/presumptive-partial-atrial-standstill-secondary-to-atrial-cardiomyopathy-in-a-greyhound
#1
S Wesselowski, J Abbott, M Borgarelli, M Tursi
Persistent atrial standstill is a rare arrhythmia in both human and veterinary patients. In recent decades, cases of partial atrial standstill have been recognized in humans. We describe a case of presumptive partial atrial standstill in a Greyhound, in which there was disparate left and right atrial electromechanical function and rapid progression to congestive heart failure over the span of fourteen weeks. An atrial cardiomyopathy characterized by severe, diffuse, fibrofatty replacement of the atrial myocardium was identified histologically...
March 14, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28291708/transvenous-electrical-cardioversion-of-atrial-fibrillation-in-two-dogs
#2
S W Jung, D K Newhard, K Harrelson
Atrial fibrillation is characterized by uncoordinated electrical activation of the atria that leads to the loss of atrial mechanical function and atrial fibrosis as a substrate promoting maintenance of rhythm abnormality. Transvenous electrical cardioversion has not been previously reported in the dog. The authors demonstrate the use of this technique for successful cardioversion of atrial fibrillation in two dogs with dilated cardiomyopathy.
March 10, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28284984/prevalence-of-mitral-valve-regurgitation-in-79-asymptomatic-norfolk-terriers
#3
A Bodegård-Westling, A Tidholm, J Häggström
OBJECTIVES: To determine the prevalence of mitral valve regurgitation (MR) in asymptomatic Swedish Norfolk terriers. ANIMALS: Seventy-nine privately owned Norfolk terriers. MATERIALS AND METHODS: A prospective observational study was conducted where dogs were recruited via the Swedish Norfolk terrier club. All dogs were examined using the same protocol including physical examination and Doppler echocardiography. RESULTS: Fifteen dogs (19%) had a murmur at the time of the examination...
March 8, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28283317/pilot-study-to-determine-the-feasibility-of-radiation-therapy-for-dogs-with-right-atrial-masses-and-hemorrhagic-pericardial-effusion
#4
M W Nolan, M M Arkans, D LaVine, T DeFrancesco, J A Myers, E H Griffith, L P Posner, B W Keene, S P Tou, T L Gieger
OBJECTIVES: To determine the short-term safety and biologic activity of radiation therapy (RT) for presumptive cardiac hemangiosarcoma in pet dogs. ANIMALS: Six dogs with echocardiographic evidence of a right atrial/auricular mass, and hemorrhagic pericardial effusion, were enrolled in a prospective, single-arm clinical trial. METHODS: A single fraction of 12 Gy was delivered using conformal external beam irradiation. Serum cardiac troponin I and plasma concentrations of vascular endothelial growth factor were quantified before, 4 and 24 h after RT...
March 7, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28279678/mitral-valve-morphology-assessed-by-three-dimensional-transthoracic-echocardiography-in-healthy-dogs-and-dogs-with-myxomatous-mitral-valve-disease
#5
G Menciotti, M Borgarelli, M Aherne, S Wesselowski, J Häggström, I Ljungvall, S M Lahmers, J A Abbott
OBJECTIVE: To assess differences in morphology of the mitral valve (MV) between healthy dogs and dogs affected by myxomatous mitral valve disease (MMVD) using real-time transthoracic three-dimensional echocardiography (RT3DE). ANIMALS: Thirty-four were normal dogs and 79 dogs were affected by MMVD. METHODS: Real-time transthoracic three-dimensional echocardiography mitral datasets were digitally recorded and analyzed using dedicated software...
March 6, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28274588/unilateral-absence-of-an-external-jugular-vein-in-two-english-bulldogs-with-pulmonary-valve-stenosis
#6
E H Chapel, B A Scansen
Two English bulldogs referred for interventional palliation of severe pulmonary valve stenosis were incidentally diagnosed with unilateral absence of an external jugular vein (left in one case, right in the other) by computed tomography and Doppler ultrasound. The right internal jugular vein also could not be visualized in the dog with absence of the left external jugular vein. Cervical venous anomalies can impact diagnostic or interventional venous catheterization procedures such as balloon pulmonary valvuloplasty...
March 5, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28117226/aortoseptal-angle-and-pressure-gradient-reduction-following-balloon-valvuloplasty-in-dogs-with-severe-subaortic-stenosis
#7
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...
January 20, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28117225/influence-of-2nd-degree-av-blocks-ecg-recording-length-and-recording-time-on-heart-rate-variability-analyses-in-horses
#8
B H Eggensperger, C C Schwarzwald
OBJECTIVES: To assess the influence of 2nd-degree AV blocks (AVB) on RR interval-based heart rate variability (HRV) variables; to investigate the effect of using PP interval time series and of artifact filtering on HRV analyses; to investigate the influence of electrocardiogram (ECG) recording length and time of recording; and to calculate day-to-day variability and reference intervals of HRV variables. ANIMALS: Thirty healthy adult horses. METHODS: RR and PP interval time series were extracted from 10-h Holter ECGs and an automated filter was applied to the RR time series (RRf)...
January 20, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28111139/double-outlet-right-ventricle-with-an-intact-interventricular-septum-and-concurrent-hypoplastic-left-ventricle-in-a-calf
#9
D K Newhard, S W Jung, R L Winter, T Kuca, J Bayne, T Passler
A 3-day-old Hereford heifer calf presented for evaluation of lethargy and dyspnea, with persistent hypoxia despite supplemental oxygen therapy. A grade III/VI right apical systolic murmur was noted during cardiac auscultation. Echocardiography revealed a double-outlet right ventricle with an intact interventricular septum and concurrent hypoplastic left ventricle and tricuspid valve dysplasia. Post-mortem examination revealed additional congenital anomalies of ductus arteriosus, patent foramen ovale, and persistent left cranial vena cava...
January 19, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28111138/biologic-variability-of-n-terminal-pro-brain-natriuretic-peptide-in-healthy-dogs-and-dogs-with-myxomatous-mitral-valve-disease
#10
Randolph L Winter, Ashley B Saunders, Sonya G Gordon, Jesse S Buch, Matthew W Miller
INTRODUCTION: To determine the biologic variability of N-terminal pro-brain natriuretic peptide (NTproBNP) in healthy dogs and dogs with various stages of myxomatous mitral valve disease (MMVD). ANIMALS: Thirty-eight privately owned dogs: 28 with MMVD and 10 healthy controls. MATERIALS AND METHODS: Prospective clinical study with comprehensive evaluation used to group dogs as healthy or into three stages of MMVD based on current guidelines...
January 19, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28094152/use-of-3d-printer-technology-to-facilitate-surgical-correction-of-a-complex-vascular-anomaly-with-esophageal-entrapment-in-a-dog
#11
A Dundie, G Hayes, P Scrivani, L Campoy, D Fletcher, K Ash, E Oxford, N S Moïse
A 10 week old female intact Staffordshire terrier was presented with a total of five congenital cardio-thoracic vascular anomalies consisting of a patent ductus arteriosus (PDA) with an aneurysmic dilation, pulmonic stenosis, persistent right aortic arch, aberrant left subclavian artery and persistent left cranial vena cava. These abnormalities were identified with a combination of echocardiogram and computed tomography angiography (CTA). The abnormalities were associated with esophageal entrapment, regurgitation, and volume overload of the left heart with left atrial and ventricular enlargement...
January 13, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28029581/right-atrial-appendage-aneurysms-in-veal-calves-and-beef-cattle-anatomopathological-investigations-and-aetiopathogenetic-hypotheses
#12
I Biasato, E Biasibetti, S Gili, G Bruatto, A Tarducci, F Guarda, M T Capucchio
OBJECTIVES: Right atrial aneurysms have been reported in bovine species, but a clear aetiopathogenesis has never been elucidated. ANIMALS: One thousand and seventy-nine veal calves (6-9 months old) and 313 beef cattle (10-24 months old) housed in intensive livestock farming systems and regularly slaughtered were included in the present study. METHODS: Hearts were externally examined and the identified right atrial aneurysms were submitted for gross and histopathological investigations...
February 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/27932282/serum-cardiac-troponin-i-in-canine-syncope-and-seizures
#13
E Dutton, J Dukes-McEwan, P J Cripps
OBJECTIVE: To determine if serum cardiac troponin I (cTnI) concentration distinguishes between cardiogenic syncope and collapsing dogs presenting with either generalized epileptic seizures (both with and without cardiac disease) or vasovagal syncope. ANIMALS: Seventy-nine prospectively recruited dogs, grouped according to aetiology of collapse: generalized epileptic seizures (group E), cardiogenic syncope (group C), dogs with both epileptic seizures and cardiac disease (group B), vasovagal syncope (group V) or unclassified (group U)...
February 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/27919727/patent-ductus-arteriosus-in-cats-felis-catus-50-cases-2000-2015
#14
A Bascuñán, K M Thieman Mankin, A B Saunders, J M Bright, V Scharf, A Singh, L O'Sullivan, B Brisson, A H Estrada, S P Tou, C Ruoff
OBJECTIVES: To describe signalment, clinical characteristics, diagnostic, treatment, and outcome data in a large case series of cats with patent ductus arteriosus (PDA). ANIMALS: Fifty cats with confirmed PDA. METHODS: Retrospective review of medical records from five referral veterinary hospitals for cats with PDA between 2000 and 2015. Cats were included if a PDA was visualized echocardiographically, during surgery, or on post-mortem examination...
February 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/27913077/pyloric-obstruction-secondary-to-epicardial-pacemaker-implantation-a-case-report
#15
G Bedoya Nader, H B Kellihan, D E Bjorling, J McAnulty
A 10-year old Lhasa Apso dog was presented for an acute history of exercise intolerance and hind limb weakness. High grade second degree atrioventricular block with an atrial rate of 200 beats per minute, ventricular rate of 40 beats per minute and an intermittent ventricular escape rhythm, was diagnosed on electrocardiograph. A transdiaphragmatic, unipolar, epicardial pacemaker was implanted without immediate surgical complications. Severe vomiting was noted 12 h post-operatively. Abdominal ultrasound and a barium study supported a diagnosis of pyloric outflow obstruction and exploratory abdominal surgery was performed...
February 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/27865737/echocardiographic-assessment-of-feline-false-tendons-and-their-relationship-with-focal-thickening-of-the-left-ventricle
#16
O A Wolf, M Imgrund, G Wess
BACKGROUND: False tendons (FTs) are string-like structures in the left ventricle. A FT might produce focal thickening at its insertion region of the left ventricle, which could be mistaken for focal hypertrophic cardiomyopathy. OBJECTIVES: To perform a prospective, echocardiographic follow-up examination of feline FTs and compare the wall thickness at the FT insertion region and a normal region without FTs at both examinations. ANIMALS: One hundred twenty-eight cats with one or multiple FTs without other cardiac abnormalities or systemic disease...
February 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/27847165/bartonella-associated-inflammatory-cardiomyopathy-in-a-dog
#17
R A Santilli, S Battaia, M Perego, M Tursi, E Grego, C Marzufero, P Gianella
A 6-year-old, male, mongrel dog was presented for acute onset of dyspnea and cough. At admission, the dog was cachectic and severely depressed. The electrocardiogram showed a sinus rhythm conducted with left bundle truncular branch block and interrupted by frequent multiform ventricular ectopic beats organized in allorhythmias. Thoracic radiographs revealed a marked cardiomegaly with perihilar edema, whereas transthoracic echocardiography revealed a dilated cardiomyopathy with segmental dyskinesis. Furosemide, enalapril, pimobendan, and mexiletine were prescribed, and a Holter was scheduled after resolution of congestive heart failure...
February 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/27840084/furosemide-continuous-rate-infusion-diluted-with-5-dextrose-in-water-or-hypertonic-saline-in-normal-adult-dogs-a-pilot-study
#18
D Adin, C Atkins, M Papich, T DeFrancesco, E Griffiths, M Penteado, K Kurtz, A Klein
OBJECTIVE: The goal of this study was to investigate the short-term safety and diuretic efficacy of furosemide constant rate infusion (CRI) diluted with 5% dextrose in water (D5W) compared to dilution with 2.4% hypertonic saline in healthy dogs. ANIMALS: Six healthy dogs. METHODS: Dogs were studied in a randomized, blinded, crossover manner. Furosemide 3.3mg/kg was diluted to 2.2mg/mL with either 1.5mL/kg D5W for the DEX method or with 1.0mL/kg D5W and 0...
February 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/27825670/left-atrial-volume-and-function-in-dogs-with-naturally-occurring-myxomatous-mitral-valve-disease
#19
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...
February 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/27815140/transcutaneous-direct-current-cardioversion-in-a-foal-with-lone-atrial-fibrillation
#20
B M Potter, B A Scansen, L K Dunbar, S M Reed, R E Toribio
There are rare published reports of atrial fibrillation (AF) in foals, all of which are associated with structural heart disease or within the adaptive period of newborns. This report describes a 3-month-old Thoroughbred filly with AF and a structurally normal heart on echocardiography. Medical cardioversion of the foal's AF was attempted with three 20mg/kg doses of quinidine sulfate therapy without success. Timed, transcutaneous, direct current cardioversion was successfully performed using adhesive patches on the midthorax in conjunction with intravenous procainamide at a total dose of 20mg/kg...
February 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
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