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Báo cáo khoa học: "Comparison of P-wave dispersion in healthy dogs, dogs with chronic valvular disease and dogs with disturbances of supraventricular conduction"

Tuyển tập các báo cáo nghiên cứu về bệnh học thý y được đăng trên tạp chí Acta Veterinaria Scandinavica cung cấp cho các bạn kiến thức về bệnh thú yđề tài: Comparison of P-wave dispersion in healthy dogs, dogs with chronic valvular disease and dogs with disturbances of supraventricular conduction. | Noszczyk-Nowak et al. Acta Veterinaria Scandinavica 2011 53 18 http www.actavetscand.eom content 53 1 18 AVS ACTAVETERINARIA ScoVmov cc a SCANDINAVICA RESEARCH Open Access Comparison of P-wave dispersion in healthy dogs dogs with chronic valvular disease and dogs with disturbances of supraventricular conduction Agnieszka Noszczyk-Nowak Anna Szalas Urszula Paslawska Józef Nicpon Abstract Background P-wave dispersion Pd is a new ECG index used in human cardiology and veterinary medicine. It is defined as the difference between the maximum and the minimum P-wave duration recorded from multiple different ECG leads. So far no studies were performed assessing the importance of P-wave dispersion in dogs. Methods The current study was aimed at determining proper value of Pd in healthy dogs group I dogs with chronic valvular disease group II and dogs with disturbances of supraventricular conduction group III . The tests were carried out in 53 healthy dogs 23 dogs with chronic valvular disease and 12 dogs with disturbances of supraventricular conduction of various breeds sexes and body weight from 1 5 to 80 kg aged between 0 5 and 17 years submitted to the ECG examination. ECG was acquired in dogs in a standing position with BTL SD-8 electrocardiographic device and analyzed once the recording was enlarged. P-wave duration was calculated in 9 ECG leads I II III aVR aVL aVF V1 V2 V4 from 5 cardiac cycles. Results The proper P-wave dispersion in healthy dogs was determined at up to 24 ms. P-wave dispersion was statistically significant increased p 0.01 in dogs with chronic valvular disease and dogs with disturbances of supraventricular conduction. In dogs with the atrial enlargement the P-wave dispersion is also higher than in healthy dogs although no significant correlation between the size of left atria and Pd was noticed p 0.1 r 0 17 . Conclusions The P-wave dispersion is a constant index in healthy dogs that is why it can be used for evaluating P wave change in dogs with .