Therapeutic Efficacy of Carvedilol and Hawthorn Extract in Management of Dilated Cardiomyopathy in Dogs
DOI:
https://doi.org/10.48165/ijvsbt.18.4.11Keywords:
Dilated Cardiomyopathy, Dogs, Pimobendan, Carvedilol, Hawthorn ExtractAbstract
The present study was undertaken to evaluate the effect of carvedilol and hawthorn extract in managing dilated cardiomyopathy (DCM) to limit the treatment cost and improve the quality of pet life. Total 165 dogs were subjected to detailed clinical and physical examination, electrocardiography and echocardiography. Out of 165 dogs, 61(36.96%) were diagnosed as DCM, out of which 30 were allocated randomly to three treatment groups comprising ten dogs in each group. Group-I dogs were treated with pimobendan, digoxin, enalapril and furosemide. In Group-II and III, pimobendan was replaced with carvedilol and hawthorn extract, respectively. Dogs with ventricular arrhythmias (Ventricular Premature Complexes, Ventricular fibrillation) were excluded from the treatment groups as digoxin is contraindicated in ventricular arrhythmias. A noticeable improvement in clinical signs, thoracic radiographic findings, left ventricular dimensions and left ventricular contractility indices was observed in the three treatment groups after 28 days of treatment when compared to the pre-treatment values. The drug's therapeutic efficacy was evaluated based on comparative assessment of post treatment left ventricular contractility indices (fractional shortening and ejection fraction). Group I had longer survival time with mean of 375 ± 14.25 days followed by Group III (264.67 ± 41.22 days) and Group II (214.57 ± 31.32 days) dogs.
Downloads
References
Amberger, C., Chetboul, V., Bomassi, E.,Rougier, S.,Woehrlé, F.,& Thoulon, F.(2004). FIRST (First Imidapril Randomized Study) Group-Comparison of the effects of imidapril and enalapril in a prospective, multicentric randomized trial in dogs with naturally acquired heart failure. Journal of Veterinary Cardiology,6 (2): 9-16.
Bhargavi, M. (2020). Clinico-therapeutic studies on dilated cardiomyopathy in dogs. Ph.D. thesis, SVVU, Andhrapradesh, pp 120.
Boon, J.A. (2011). Veterinary Echocardiography. Wiley-Blackwell, Ames,Iowa, USA.,Edn 2nd, pp 767.
Boswood, A., (2010). Current use of pimobendan in canine patients with heart disease. Veterinary Clinics: Small Animal Practice. 40: 571–580.
Brenyo, A.& Aktas M. K. (2014). Review of complementary and alternative medicaltreatment of arrhythmias.American Journal of Cardiology.,113(5): 897-903.
Chang, W.T., Dao, J., & Shao, Z.H. (2005). Hawthorn: potential roles in cardiovasculardisease. American Journal of Chinese Medicine. 33(01):1-10.
Dahmer, S.& Scott,E.(2010). Health effects of Howthorn. American Family Physician81(4): 465-8.
Fuentes, V.L., Corcoran, B.& French, A.(2002). A double-blinded, randomized placebo-controlled study of pimobendan in dogs with dilated cardiomyopathy. Journal of Veterinary Internal Medicine.,16(3): 255-261.
Hansson, K., Haggstrom, J., Kvart, C., & Lord, P. (2002). Left atrial to aortic root indices using two-dimensional andm-mode echocardiography in cavalier king charles spanielswith and without left atrial enlargement. Veterinary Radiology and Ultrasound. 43(6); 568-575.
Joseph, E.&Pizzorono, N. D.(2016): Congestive Heart Failure. The Clinician’s Handbook of Natural Medicine, Edn3rd, pp: 225-231. Kumar, A., Sahadeb,D.,Abhishek,C. S.,&Mahajan.S.(2018). Evaluation of add on effect of carvedilol on standard protocol of digoxin, frusemide and benazepril in the management of dilated cardiomyopathy in dogs. Indian Journal of Animal Research,52(4): 583 – 590.
Martin M. (2003). Treatment of congestive heart failure – a neuro endocrine disorder. Journal of Small Animal Practice. 44:154- 160.
Martin M. W., Stafford johnson, M. J.,Strehlau, G.& King J. N. (2010). Canine dilated cardiomyopathy: a retrospective study of prognostic findings in 367 clinical cases. Journal of SmallAnimal Practice. 51(8):428-436.
Matsumori, A.& S. Sasayama. (2001). The role of inflammatory mediators in the failing heart: immunomodulation of cytokines in experimental models of heart failure. Heart Failure Reviews, 6:129-136.
Nikolaidis L. A., Poornima,I., Parikh,P.,Magovern,M., Shen,Y. T. &Shannon, R.P.(2006): The effects of combined versus selective adrenergic blockade on left ventricular and systemic hemodynamics, myocardial substrate preference and regional perfusion in conscious dogs with dilated cardiomyopathy. Journal of theAmerican College of Cardiology 47:1871-1881.
O'Grady, M. R., Minors, S. L., O'Sullivan, M. L. & Horne.R.(2008). Effect of pimobendanon case fatality rate in Doberman Pinschers with congestive heart failurecaused by dilated cardiomyopathy. Journal of Veterinary Internal Medicine, 22(4):897-904.
Oyama, M. A., Sisson, D. D., Prosek, R., Bulmer, B. J., Luethy, W. & Fuentes, V. L. (2007). Carvedilol in dogs with dilated cardiomyopathy. Journal of Veterinary Internal Medicine 21:1272-1279.
Rastogi, S., Pandey, M. M., & Rawat. A. K. (2016). Traditional herbs: a remedy forcardiovascular disorders. Phytomedicine 23(11):1082-1089.
Snedecor, G. W.,& Cochron W. G. (1994). Statistical methods, 8th edition, Iowa stateUniversity press U S A.
Summerfield, N. J., Boswood, A., O'Grady,M. R., Gordon,S. G., Dukes‐ Mcewan,J.,Oyama, M. A., Smith,S., Patteson,M., French,A. T.,Culshaw,G. J.& Braz‐ruivo, L.(2012): Efficacy of pimobendan in the prevention of congestive heart failureor sudden death in Doberman Pinschers with preclinical dilatedcardiomyopathy (the PROTECT Study). Journal of Veterinary Internal Medicine 26(6):1337-1349.
Tankanow,R., Tamer,H. R. & Streetman.D. S.(2003): Interaction study between digoxin and a preparation of hawthorn (Crataegus oxyacantha). Journal of Clinical Pharmacology, 43(6):637-642.
Ware, W. A. (2009): Cardiovascular system disorders, In: Nelson R W and Couto C G,Small Animal Internal Medicine, Edn4th, Mosby Elsevier, pp.1-206.
Ware, W.A. & Keene, B.W. (1999): Outpatient management of chronic heartfailure. In: Kirk’s Current Veterinary Therapy, Small Animal Practice. Edt. BONAGURA, J.D., Edn. 13th., W.B. Saunders Co., Philadelphia,pp 748-752.
Watanabe, K., Arozal,W., Sari,F. R., Arumugam,S., Thandavarayan, R. A. &Suzuki, K.(2011). The Role of Carvedilol in the Treatment of Dilated and Anthracyclines-Induced Cardiomyopathy. Pharmaceuticals.4(5):7700-781.
Downloads
Published
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.