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Pimobendan

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https://www.readbyqxmd.com/read/29330133/the-evaluation-of-drug-induced-changes-in-left-ventricular-function-in-pentobarbital-anesthetized-dogs
#1
Yevgeniya E Koshman, Brett R Herzberg, Terese R Seifert, James S Polakowski, Scott W Mittelstadt
INTRODUCTION: The goal of this study was to determine whether assessment of myocardial contractility and hemodynamics in an anesthetized dog model, could consistently detect drug-induced changes in the inotropic state of the heart using drugs known to have clinically relevant positive and negative effects on myocardial contractility. METHODS: Derived parameters included: diastolic, systolic and mean arterial BP, peak systolic LVP, HR, end-diastolic LVP, and LVdP/dtmax as the primary contractility index...
January 9, 2018: Journal of Pharmacological and Toxicological Methods
https://www.readbyqxmd.com/read/29297825/medical-management-of-dilated-cardiomyopathy-in-livingstone-fruit-bats-pteropus-livingstonii
#2
Rowena Killick, Alberto Rodriguez Barbon, Michelle Barrows, Andrew Routh, Richard Saunders, Charlotte Day, P G Cert Exotic Animal Studies, Adam Naylor, Nicolette Hayward, David Sewell, Kieran Borgeat, Aimee L Drane, Lois Wilkie
Eleven cases of dilated cardiomyopathy have been diagnosed and treated in captive Livingstone fruit bats ( Pteropus livingstonii) in the United Kingdom over the past 7 yr. All but one case received treatment with a diuretic plus an angiotensin-converting enzyme inhibitor (ACEI), and, or pimobendan. One case is still under treatment with pimobendan alone, following diagnosis before onset of clinical signs. Diuretic treatment consisted of furosemide at a dose rate of 0.5-5 mg/kg, one to three times daily, and, or spironolactone at a dose rate of 1-4 mg/kg, once or twice daily...
December 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/29214723/longitudinal-analysis-of-quality-of-life-clinical-radiographic-echocardiographic-and-laboratory-variables-in-dogs-with-preclinical-myxomatous-mitral-valve-disease-receiving-pimobendan-or-placebo-the-epic-study
#3
A Boswood, S G Gordon, J Häggström, G Wess, R L Stepien, M A Oyama, B W Keene, J Bonagura, K A MacDonald, M Patteson, S Smith, P R Fox, K Sanderson, R Woolley, V Szatmári, P Menaut, W M Church, M L O'Sullivan, J-P Jaudon, J-G Kresken, J Rush, K A Barrett, S L Rosenthal, A B Saunders, I Ljungvall, M Deinert, E Bomassi, A H Estrada, M J Fernandez Del Palacio, N S Moise, J A Abbott, Y Fujii, A Spier, M W Luethy, R A Santilli, M Uechi, A Tidholm, C Schummer, P Watson
BACKGROUND: Changes in clinical variables associated with the administration of pimobendan to dogs with preclinical myxomatous mitral valve disease (MMVD) and cardiomegaly have not been described. OBJECTIVES: To investigate the effect of pimobendan on clinical variables and the relationship between a change in heart size and the time to congestive heart failure (CHF) or cardiac-related death (CRD) in dogs with MMVD and cardiomegaly. To determine whether pimobendan-treated dogs differ from dogs receiving placebo at onset of CHF...
December 6, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28713578/retrospective-evaluation-of-pimobendan-and-sildenafil-therapy-for-severe-pulmonary-hypertension-due-to-lung-disease-and-hypoxia-in-28-dogs-2007-2013
#4
Lisa A Murphy, Nicholas Russell, Domenico Bianco, Reid K Nakamura
Pulmonary hypertension (PH) is the persistent abnormal increase in pulmonary artery (PA) pressure and in dogs is usually secondary to congenital disease causing pulmonary over circulation, chronic respiratory disease and elevated left atrial pressure. Sildenafil (SF) is a phosphodiesterase (PDE) V inhibitor that causes pulmonary artery (PA) vasodilation by increasing pulmonary vascular concentrations of cyclic guanosine monophosphate which subsequently increases the activity of endogenous nitric oxide. Pimobendan (PB) is a PDE III inhibitor with calcium sensitizing effects thereby exerting positive inotropy and vasodilation...
May 2017: Veterinary Medicine and Science
https://www.readbyqxmd.com/read/28693297/evaluation-of-a-fixed-dose-combination-of-benazepril-and-pimobendan-in-dogs-with-congestive-heart-failure-a-randomized-non-inferiority-clinical-trial
#5
Jonathan N King, Atsushi Hirakawa, Junko Sonobe, Hiroshi Otaki, Nobuhiro Sakakibara, Wolfgang Seewald, Sophie Forster
A new fixed dose combination tablet of benazepril and pimobendan (Fortekor Plus) was tested in dogs with congestive heart failure (CHF) caused by myxomatous mitral valve disease (MMVD) in a prospective, multi-center, parallel-group, three-arm, masked, randomized, non-inferiority clinical trial in 67 dogs in Japan. The test group received Fortekor Plus twice daily (n=34). Two control groups received the registered formulations of benazepril (Fortekor) and pimobendan (Vetmedin) with administration of pimobendan twice daily and benazepril twice (Control I, n=14) or once (Control II, n=19) daily...
July 10, 2017: Journal of Veterinary Science
https://www.readbyqxmd.com/read/28649790/safety-of-a-benazepril-and-pimobendan-combination-tablet-in-adult-healthy-dogs
#6
E A Kuntz, G Strehlau, J M Giraudel, J N King
The objective of the study was to investigate the safety of a combination tablet of benazepril and pimobendan, Fortekor PLUS(®) , in a randomized, blinded, parallel-group design study in healthy adult beagle dogs. The test article, Fortekor PLUS(®) tablets, was administered orally twice daily for 6 months at one, two, and four times the highest recommended dosage of 0.5 mg/kg benazepril hydrochloride/0.25 mg/kg pimobendan (four males and four females per group). An additional control group was sham-dosed...
June 26, 2017: Journal of Veterinary Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28491438/isolated-unilateral-absence-of-the-right-pulmonary-artery-in-two-cats-visualized-by-computed-tomography-angiography
#7
Tyler Jm Jordan, Brian A Scansen, Agnieszka M Kent, Lora S Hitchcock, Duncan S Russell
CASE SERIES SUMMARY: Two cats were evaluated for progressive exercise intolerance, dyspnea and unilateral infiltrate of the left lung. Computed tomography angiography (CTA) revealed absence of the right pulmonary artery in both cats with systemic arterial collateral vessels perfusing the right segmental pulmonary arteries. In one case, the collateral vessels arose from the esophageal artery, while in the other case they derived off the right costocervical trunk. One cat was diagnosed with pulmonary hypertension and was euthanized owing to progressive respiratory distress despite medical management with sildenafil, pimobendan, clopidogrel and furosemide...
July 2016: JFMS open reports
https://www.readbyqxmd.com/read/28434968/cardiac-contractility-correction-strategies-applied-to-telemetry-data-from-a-hesi-sponsored-consortium
#8
Emmanuel Boulay, Michael K Pugsley, Vincent Jacquemet, Alain Vinet, Michael V Accardi, Maxim Soloviev, Eric Troncy, Jennifer M Doyle, Jennifer Beck Pierson, Simon Authier
INTRODUCTION: QT has a long history of heart rate (HR) correction but limited investigations have been undertaken to assess the impact of cardiovascular parameters on left ventricular (LV) contractility in drug safety testing. Cardiac contractility is affected by preload (Cyon-Frank-Starling law), afterload (Anrep effect) and HR (Bowditch effect). We evaluated multi-parameter correction methods to help with dP/dtmax interpretation. METHODOLOGY: Modeling was undertaken using data from dogs in single or double 4×4 Latin square studies...
April 21, 2017: Journal of Pharmacological and Toxicological Methods
https://www.readbyqxmd.com/read/28065821/an-evaluation-of-the-utility-of-lvdp-dt40-qa-interval-lvdp-dtmin-and-tau-as-indicators-of-drug-induced-changes-in-contractility-and-lusitropy-in-dogs
#9
Michael K Pugsley, Brian Guth, Alan Y Chiang, Jennifer M Doyle, Michael Engwall, Jean-Michel Guillon, Peter K Hoffmann, John E Koerner, Scott W Mittelstadt, Jennifer Beck Pierson, Eric I Rossman, Dustan R Sarazan, Stanley T Parish
INTRODUCTION: The importance of drug-induced effects on the inotropic state of the heart is well known. Unlike hemodynamic and cardiac electrophysiological methods, which have been routinely used in drug safety testing for years, the non-clinical assessment of drug effects on myocardial contractility is used less frequently with no established translation to humans. The goal of these studies was to determine whether assessment of alternate measures of cardiac inotropy could detect drug-induced changes in the contractile state of the heart using drugs known to have clinically relevant positive and negative effects on myocardial contractility...
May 2017: Journal of Pharmacological and Toxicological Methods
https://www.readbyqxmd.com/read/28018821/pimobendan-in-chronic-right-heart-failure-in-a-left-ventricular-assist-device-patient
#10
Maximilian Kreibich, Michael Berchtold-Herz, Friedhelm Beyersdorf, Georg Trummer
We report the case of a 76-year-old patient who developed chronic right heart failure 1 year after left ventricular assist device implantation due to ischemic cardiomyopathy. Initial recompensation was achieved through dobutamin, sildenafil, and levosimendan treatment. Yet, discharge was successful only after the off-label use of the oral calcium sensitizer pimobendan. Ten months after discharge, the patient presents with no clinical signs of right heart failure and significantly improved right heart function without any impairment in quality of life...
December 2016: Thoracic and Cardiovascular Surgeon Reports
https://www.readbyqxmd.com/read/27847165/bartonella-associated-inflammatory-cardiomyopathy-in-a-dog
#11
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/27736223/right-heart-failure-in-an-african-penguin-spheniscus-demersus
#12
Lara Cusack, Cara Field, Alexa McDermott, Brandon Pogue, Tonya Clauss, Gregory Bossart, Alvin Camus
A 19-year-old male African penguin ( Spheniscus demersus ) was presented with coelomic distention after a 6-week history of lethargy and decreased appetite. Results of radiographs showed loss of coelomic detail, and ultrasound and computed tomography results revealed coelomic fluid and dilated hepatic veins. Echocardiography revealed moderate right atrial enlargement. Findings were consistent with right-sided cardiac disease. Treatment with furosemide initially reduced ascites, but the clinical condition worsened weeks later and enalapril, pimobendan, and sildenafil were added to the medical therapy...
September 2016: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/27685367/cardiogenic-pulmonary-edema-in-a-dog-following-initiation-of-therapy-for-concurrent-hypoadrenocorticism-and-hypothyroidism
#13
Jooyae Paik, Ji-Houn Kang, Dongwoo Chang, Mhan-Pyo Yang
A 5 yr old intact female cocker spaniel dog weighing 7.8 kg was referred with anorexia, vomiting, and depression. At referral, the dog was diagnosed initially with typical hypoadrenocorticism, and 2 d later, concurrent primary hypothyroidism was detected. Hormonal replacement therapies, including fludrocortisone, prednisolone, and levothyroxine, were initiated, but a few days later the dog became abruptly tachypneic, and thoracic radiographs indicated the development of pulmonary edema. Echocardiography showed that there were abnormalities indicating impaired left ventricular function, although the heart valves were normal...
November 2016: Journal of the American Animal Hospital Association
https://www.readbyqxmd.com/read/27678080/effect-of-pimobendan-in-dogs-with-preclinical-myxomatous-mitral-valve-disease-and-cardiomegaly-the-epic-study-a-randomized-clinical-trial
#14
A Boswood, J Häggström, S G Gordon, G Wess, R L Stepien, M A Oyama, B W Keene, J Bonagura, K A MacDonald, M Patteson, S Smith, P R Fox, K Sanderson, R Woolley, V Szatmári, P Menaut, W M Church, M L O'Sullivan, J-P Jaudon, J-G Kresken, J Rush, K A Barrett, S L Rosenthal, A B Saunders, I Ljungvall, M Deinert, E Bomassi, A H Estrada, M J Fernandez Del Palacio, N S Moise, J A Abbott, Y Fujii, A Spier, M W Luethy, R A Santilli, M Uechi, A Tidholm, P Watson
BACKGROUND: Pimobendan is effective in treatment of dogs with congestive heart failure (CHF) secondary to myxomatous mitral valve disease (MMVD). Its effect on dogs before the onset of CHF is unknown. HYPOTHESIS/OBJECTIVES: Administration of pimobendan (0.4-0.6 mg/kg/d in divided doses) to dogs with increased heart size secondary to preclinical MMVD, not receiving other cardiovascular medications, will delay the onset of signs of CHF, cardiac-related death, or euthanasia...
November 2016: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/27644192/efficacy-of-pimobendan-on-survival-and-reoccurrence-of-pulmonary-edema-in-canine-congestive-heart-failure
#15
Masashi Mizuno, Shigeki Yamano, Shuichi Chimura, Atsushi Hirakawa, Yoshimi Takusagawa, Tamotsu Sawada, Shigeki Maetani, Arane Takahashi, Takeshi Mizuno, Kayoko Harada, Asako Shinoda, Shuhei Uchida, Junichiro Takeuchi, Takahiro Mizukoshi, Masaaki Endo, Masami Uechi
The aim of this study was to evaluate the efficacy of pimobendan with conventional therapies on survival and reocurrence of pulmonary edema in dogs with congestive heart failure (CHF) caused by myxomatous mitral valve disease (MMVD). Records of 197 client-owned dogs from 14 veterinary hospitals were included in this study. Dogs were administered conventional treatments with or without pimobendan. Sixty-four dogs received a standard dose of pimobendan (0.20-0.48 mg/kg every 12 hr (q12hr)), 49 dogs received a low dose of pimobendan (0...
January 20, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/27614590/unilateral-absence-of-the-right-pulmonary-artery-with-associated-aortopulmonary-collaterals-and-bullous-lung-lesions-in-a-dog
#16
S Birch, D Casamian-Sorrosal, S Fonfara, G Chanoit, C Warren-Smith
This case report describes a combination of congenital cardiopulmonary abnormalities found in a 1-year-old Labrador Retriever. To the authors' knowledge this combination of cardiopulmonary abnormalities has not been previously reported in veterinary medicine. Unilateral absence of the right pulmonary artery associated with unilateral right-sided aortopulmonary collaterals was observed. These aortopulmonary collaterals preserved the blood supply to the right lung lobes but led to left ventricular volume overload...
December 2016: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/27613648/single-dose-pharmacokinetics-and-cardiovascular-effects-of-oral-pimobendan-in-healthy-cats
#17
RANDOMIZED CONTROLLED TRIAL
M Yata, A J McLachlan, D J R Foster, A S Hanzlicek, N J Beijerink
INTRODUCTION: To investigate the pharmacokinetics and pharmacodynamics of oral pimobendan in conscious, healthy cats. ANIMALS: Eight healthy adult cats. MATERIALS AND METHODS: A randomised, single-blinded, crossover design was used. Two oral doses of pimobendan (0.625-mg [LD], 1.25-mg [HD]) and a control substance (3-mL water) were administered to each cat. Blood collection, echocardiography, and oscillometric blood pressure measurements were performed repeatedly for 12 h following each dose...
December 2016: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/27569835/effects-of-pimobendan-on-myocardial-perfusion-and-pulmonary-transit-time-in-dogs-with-myxomatous-mitral-valve-disease-a-pilot-study
#18
RANDOMIZED CONTROLLED TRIAL
S M Apple, G Menciotti, L Braz-Ruivo, S Crosara, J Häggström, M Borgarelli
OBJECTIVES: To describe pulmonary transit time (nPTT) and myocardial perfusion (nMP) normalised to heart rate in dogs with stable ACVIM stage C myxomatous mitral valve disease (MMVD) and to assess short-term effects of pimobendan on these variables. We hypothesised that nPTT and nMP would increase in dogs with MMVD compared with normal dogs. Additionally, we hypothesised that treatment with pimobendan would decrease nMP and nPTT in dogs with MMVD. DESIGN: Prospective, single-blind study involving 6 normal dogs and 12 dogs with MMVD...
September 2016: Australian Veterinary Journal
https://www.readbyqxmd.com/read/27569831/in-this-issue-september-2016-portable-negative-pressure-wound-therapy-for-skin-grafts-in-dogs%C3%A2-%C3%A2-%C3%A2-wellness-testing-in-small-animals%C3%A2-%C3%A2-%C3%A2-effects-of-pimobendan-on-myocardial-perfusion-and-pulmonary-transit-time-in-dogs%C3%A2-%C3%A2-%C3%A2-rispens-cvi988-vaccine-virus-and
#19
https://www.readbyqxmd.com/read/27388158/interstitial-pneumonia-and-pulmonary-hypertension-associated-with-suspected-ehrlichiosis-in-a-dog
#20
Marjolein Lisette den Toom, Tetyda Paulina Dobak, Els Marion Broens, Chiara Valtolina
BACKGROUND: In dogs with canine monocytic ehrlichiosis (CME), respiratory signs are uncommon and clinical and radiographic signs of interstitial pneumonia are poorly described. However, in human monocytic ehrlichiosis, respiratory signs are common and signs of interstitial pneumonia are well known. Pulmonary hypertension (PH) is classified based on the underlying disease and its treatment is aimed at reducing the clinical signs and, if possible, addressing the primary disease process...
July 7, 2016: Acta Veterinaria Scandinavica
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