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

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https://read.qxmd.com/read/30709617/indications-for-permanent-pacing-in-dogs-and-cats
#1
REVIEW
R A Santilli, F Giacomazzi, D M Porteiro Vázquez, M Perego
Pacemaker implantation is considered as a standard procedure for treatment of symptomatic bradycardia in both dogs and cats. Advanced second-degree and third-degree atrioventricular blocks, sick sinus syndrome, persistent atrial standstill, and vasovagal syncope are the most common rhythm disturbances that require pacing to either alleviate clinical signs or prolong survival. Most pacemakers are implanted transvenously, using endocardial leads, but rarely epicardial leads may be necessary. To decide whether a patient is a candidate for pacing, as well as which pacing modality should be used, the clinician must have a clear understanding of the etiology, the pathophysiology, and the natural history of the most common bradyarrhythmias, as well as what result can be achieved by pacing patients with different rhythm disturbances...
January 29, 2019: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://read.qxmd.com/read/30661842/transvenous-pacing-implantation-techniques-tips-and-lessons-learned-along-the-way
#2
REVIEW
A H Estrada, H W Maisenbacher, A E Jones, R Prošek, M E Kleman, R M Bryant
The right ventricular apex has been the traditional site for lead placement in veterinary patients who require permanent cardiac pacing therapy for atrioventricular block and sick sinus syndrome. Implantation of leads in this location is a straightforward procedure that most veterinary cardiologists perform routinely. Pacing at the right ventricular apex, however, has been demonstrated to have long-term deleterious effects on the left ventricular function in numerous patient populations and animal models. Alternative lead placement sites and pacing system configurations have been developed, and the purpose of this review article is not to review the literature or the decision-making process in selecting a specific pacing system but rather to share the experiences of our group with the use of alternative pacing implantation techniques for veterinary patients in need of permanent cardiac pacing...
January 17, 2019: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://read.qxmd.com/read/30600210/special-issue-cardiac-pacing
#3
EDITORIAL
Romain Pariaut
No abstract text is available yet for this article.
December 29, 2018: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://read.qxmd.com/read/30581086/identification-and-management-of-a-subacute-right-ventricular-perforation-by-an-active-fixation-permanent-pacemaker-lead-in-a-dog
#4
L García-Guasch, C Sá Borges, P Sousa, J Manubens Grau
A 5-year-old short-haired dachshund was referred with a history of repeated syncope associated with a third-degree atrioventricular block. A permanent transvenous pacemaker with an active-fixation lead was implanted. In the following 3 weeks, the syncopal episodes reappeared owing to a loss of ventricular capture. The pacemaker was reprogrammed to higher output, and effective pacing was re-established. Thoracic radiographs and echocardiography failed to identify any evidence of lead displacement. One month later, the patient presented a new episode of loss of capture...
December 20, 2018: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://read.qxmd.com/read/30573438/artificial-cardiac-pacemaker-placement-in-dogs-with-a-cohort-of-myocarditis-suspects-and-association-of-ultrasensitive-cardiac-troponin-i-with-survival
#5
S Wesselowski, K Cusack, S G Gordon, N Jeffery, A B Saunders
INTRODUCTION: Artificial cardiac pacemakers (APs) are a common treatment for symptomatic bradyarrhythmias in dogs, some of which may be triggered by underlying myocarditis. Severely elevated cardiac troponin I (cTnI) concentrations support a diagnosis of myocarditis. The association of ultrasensitive-cTnI (US-cTnI) concentration with survival in a large cohort of dogs receiving APs is not described. ANIMALS, MATERIALS, AND METHODS: The study included 110 dogs receiving APs over a 5-year period...
December 17, 2018: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://read.qxmd.com/read/30559056/canine-and-human-sinoatrial-node-differences-and-similarities-in-the-structure-function-molecular-profiles-and-arrhythmia
#6
A Kalyanasundaram, N Li, B J Hansen, J Zhao, V V Fedorov
The sinoatrial node (SAN) is the primary pacemaker in canine and human hearts. The SAN in both species has a unique three-dimensional heterogeneous structure characterized by small pacemaker myocytes enmeshed within fibrotic strands, which partially insulate the cells from aberrant atrial activation. The SAN pacemaker tissue expresses a unique signature of proteins and receptors that mediate SAN automaticity, ion channel currents, and cell-to-cell communication, which are predominantly similar in both species...
December 14, 2018: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://read.qxmd.com/read/30554843/upper-rate-behavior-in-six-dogs-with-dual-chamber-pacemakers
#7
B M Potter, M K Ames, A M Toffoli, B A Scansen
INTRODUCTION: This report provides clinical examples of upper rate behavior in dogs with dual-chamber pacemakers, with suggestions for programming alterations to avoid detrimental upper rate behavior. ANIMALS: Six dogs with dual-chamber pacemakers displaying upper rate behavior at upper atrial tracking rates. METHODS: Medical records of dogs with dual-chamber pacemakers with evidence of upper rate behavior were reviewed retrospectively from two institutions...
December 13, 2018: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://read.qxmd.com/read/30552010/epicardial-pacemaker-implantation-in-small-animals
#8
E Christopher Orton
Epicardial pacemaker implantation can be performed as a lone procedure or in combination with another thoracic or abdominal surgery. This article reviews the current literature and describes a minimally invasive approach for epicardial pacemaker implantation in small animals. The principal advantage of epicardial pacing is that it avoids contact with blood and intracardiac structures and thereby avoids uncommon but potentially devastating complications associated with endocardial pacemaker implantation. Epicardial pacing as a lone procedure can be accomplished via an abdominal transdiaphragmatic or minimal incision thoracotomy approach (minithoracotomy)...
December 11, 2018: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://read.qxmd.com/read/30527533/the-effect-of-a-surgical-safety-checklist-on-complication-rates-associated-with-permanent-transvenous-pacemaker-implantation-in-dogs
#9
J Ward, A McLaughlin, R Burzette, B Keene
INTRODUCTION: To determine whether use of a surgical safety checklist (SSC) would reduce the rate of major complications after permanent transvenous pacemaker implantation in dogs. ANIMALS: The study included one hundred ninety-nine dogs undergoing pacemaker implantation for bradyarrhythmias at an academic teaching hospital. METHODS: A service-specific SSC was developed and implemented for cardiac catheterization procedures in 2015. Medical records were reviewed to extract relevant clinical and procedural data for cases with (SSC [+]) and without (SSC [-]) a checklist...
December 5, 2018: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://read.qxmd.com/read/30503648/synchronous-diaphragmatic-contraction-associated-with-dual-chamber-transvenous-pacing-in-a-dog
#10
E T Karlin, J E Rush, E A Nobrega
A 3-year-old, 20-kg, spayed female, mix-breed dog received a dual-chamber pacemaker for management of symptomatic 3rd-degree atrioventricular block. Synchronous diaphragmatic contraction was documented to occur with atrial pacing. Various methods to reduce the occurrence of pacemaker-related phrenic nerve stimulation are discussed.
November 28, 2018: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://read.qxmd.com/read/30526958/usefulness-of-pulsed-wave-tissue-doppler-imaging-at-the-mitral-annulus-for-prediction-of-new-onset-atrial-fibrillation-in-dogs
#11
J Neves, B Pedro, R Christley, J Dukes-McEwan
INTRODUCTION: The time from the onset of the P wave on electrocardiogram to the peak of late diastolic wave signal (PA-TDI interval) recorded by left atrial pulsed-wave tissue Doppler imaging (PW-TDI) is a surrogate of the total atrial conduction time, and it can predict the development of new-onset atrial fibrillation (AF) in people. This study investigated whether PA-TDI interval measured with PW-TDI at the level of lateral aspect of the mitral valve annulus could identify dogs which developed AF within 6 months after echocardiography...
December 2018: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://read.qxmd.com/read/30526957/clinical-echocardiographic-and-advanced-imaging-characteristics-of-13-dogs-with-systemic-to-pulmonary-arteriovenous-fistulas
#12
M Claretti, D Pradelli, S Borgonovo, E Boz, C M Bussadori
OBJECTIVES: The objective is to describe the clinical, radiographic, echocardiographic and angiographic findings in dogs with systemic-to-pulmonary arteriovenous fistula (SPAVF). ANIMALS: Thirteen medical records of client-owned dogs with a diagnosis of SPAVF were reviewed/analysed. METHODS: This is a retrospective study of case records. Thoracic radiography, transthoracic echocardiography (TTE), transesophageal echocardiography (TEE), three-dimensional TEE, intracardiac echocardiography, fluoroscopy-guided or computed tomography (CT) angiography were carried out...
December 2018: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://read.qxmd.com/read/30526956/specific-features-and-survival-of-french-bulldogs-with-congenital-pulmonic-stenosis-a-prospective-cohort-study-of-66-cases
#13
Valérie Chetboul, Cécile Damoiseaux, Camille Poissonnier, Marie Lavennes, Sandrine Bertrand, Nicolas Borenstein, Luc Behr, Jean-Louis Pouchelon, Vassiliki Gouni, Loïc Desquilbet
INTRODUCTION: The objectives of this study were to characterize the epidemiological, clinical, and echocardiographic features of French bulldogs (FBs) with congenital pulmonic stenosis and document their survival times and risk factors for cardiac death (CD). ANIMALS: This study included 66 FBs with congenital pulmonic stenosis. METHODS: Prospective cohort study including a survival analysis to assess time to CD. RESULTS: In most cases (53/66, 80%), at least two obstructive lesions were observed, most commonly valvular and supravalvular (42/66, 64%), with pulmonary trunk hypoplasia in 40/66 (61%) of cases...
December 2018: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://read.qxmd.com/read/30526955/cardiovascular-images-vascular-hamartoma-of-the-mitral-valve-in-a-horse
#14
M J DiVincenzo, J D Bonagura, L Rings, T A Burns, R E Cianciolo, R Kohnken
An 8-month-old Hanoverian gelding was presented with a history of cardiac murmurs that were not apparent as a foal nor reported at the time of castration. Major echocardiographic findings included mitral valvular thickening, functional stenosis, and mitral regurgitation of sufficient severity to cause diastolic and systolic cardiac murmurs, left-sided volume overload, and pulmonary hypertension. Due to the hemodynamic severity of the lesion and poor prognosis for future performance and longevity, euthanasia was elected...
December 2018: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://read.qxmd.com/read/30145181/right-ventricular-outflow-tract-fractional-shortening-an-echocardiographic-index-of-right-ventricular-systolic-function-in-dogs-with-pulmonary-hypertension
#15
D Caivano, M Rishniw, F Birettoni, V Patata, M E Giorgi, K Dei, F Porciello
OBJECTIVES: To create reference intervals for right ventricular outflow tract fractional shortening (RVOT-FS) in healthy dogs and examine diagnostic performance of this index in dogs with pulmonary hypertension (PH). In addition, we examine the impact of myxomatous mitral valve disease (MMVD) without PH on RVOT-FS. ANIMALS, MATERIALS AND METHODS: The study population included 52 healthy adult dogs, 51 dogs with MMVD but without PH, and 51 dogs with PH. This is a prospective study...
October 2018: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://read.qxmd.com/read/30143416/two-dimensional-long-axis-echocardiographic-ratios-for-assessment-of-left-atrial-and-ventricular-size-in-dogs
#16
L E Strohm, L C Visser, E H Chapel, W T Drost, J D Bonagura
INTRODUCTION: Left ventricular (LV) and left atrial (LA) enlargement affect management and outcome of dogs with cardiac disease. Short-axis, two-dimensional echocardiographic (2DE) images, indexed to the aorta (Ao), are frequently used to identify cardiomegaly. Long-axis images offer complementary views of the left heart. ANIMALS: Eighty healthy dogs and 25 dogs with MMVD. METHODS: Healthy dogs were prospectively recruited to determine reference intervals (Clinical Laboratory Standards Institute methodology) for long-axis ratios...
October 2018: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://read.qxmd.com/read/30139650/interreader-agreement-of-radiographic-left-atrial-enlargement-in-dogs-and-comparison-to-echocardiographic-left-atrial-assessment
#17
COMPARATIVE STUDY
L Duler, N L LeBlanc, S Cooley, S Nemanic, K F Scollan
INTRODUCTION: Assessing left atrial (LA) size is an integral part of the cardiac evaluation in dogs. Left atrial size is routinely evaluated by thoracic radiographs or echocardiography. OBJECTIVES: The objectives of the study were to assess agreement of subjective radiographic left atrial enlargement (LAE) between readers, to compare subjective radiographic LAE with echocardiography, and to assess the accuracy and reliability of commonly used Roentgen signs for LAE...
October 2018: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://read.qxmd.com/read/30139649/echocardiographic-variables-in-healthy-north-american-salukis
#18
T A Kurosawa, M D Sist, R A Sanders
INTRODUCTION: To report normal echocardiographic variables from a population of healthy Salukis in North America. ANIMALS: The study included 83 healthy adult Salukis from North America with structurally normal hearts. METHODS: All animals underwent a full physical examination and two-dimensional, M-mode, and Doppler echocardiography using the right parasternal and left apical views with the left ventricular volumes calculated using the Simpson's method of discs...
October 2018: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://read.qxmd.com/read/30139648/echocardiographic-assessment-of-right-ventricular-systolic-function-in-boxers-with-arrhythmogenic-right-ventricular-cardiomyopathy
#19
S M Cunningham, B D Aona, K Antoon, J E Rush, B A Barton
OBJECTIVES: To determine whether there are differences in measures of longitudinal right ventricular (RV) systolic function among Boxers with arrhythmogenic right ventricular cardiomyopathy (ARVC) compared with healthy control Boxer dogs. To explore relationships between markers of RV systolic function and age, body weight, gender, arrhythmia frequency, and markers of left ventricular (LV) systolic function in Boxer dogs. ANIMALS: The study included 50 client-owned Boxer dogs...
October 2018: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://read.qxmd.com/read/30131290/radiofrequency-catheter-ablation-of-accessory-pathways-in-the-dog-the-italian-experience-2008-2016
#20
R A Santilli, M Mateos Pañero, D M Porteiro Vázquez, A Perini, M Perego
INTRODUCTION: Accessory pathways (APs) in dogs are mostly right-sided, display nondecremental conduction, and mediate atrioventricular reciprocating tachycardias (AVRTs). Radiofrequency catheter ablation (RFCA) is considered the first-line therapy in human patients to abolish electrical conduction along APs. ANIMALS: Seventy-six consecutive client-owned dogs. MATERIAL AND METHODS: Retrospective study to describe the precise anatomical distribution and the electrophysiologic characteristics of APs in a large population of dogs and to evaluate long-term success and complication rates of RFCA...
October 2018: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
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