ABSTRACT
Limited information exists regarding electrocardiographic parameters in clinically healthy donkeys. The study was carried out in 75 healthy adult animals (40 females and 35 males) using the Einthoven standard II and base-apex leads. The P wave showed usually a bifid shape deflection. The QRS complex of the donkeys appeared in several forms: QR and R were the most frequent in limb lead II, and QS and QR in the base-apex lead. Most T waves presented a simple negative configuration in lead II and biphasic shape in the base-apex one. Mean heart rate value was 52 beats per minute. The direction of the QRS vector in lead II had a mean value of 91.4 degrees. We observed a lack of detected arrhythmias. Statistically significant differences were observed between sexes for several parameters. The electrocardiogram of Zamorano-leones donkey differs in several duration, amplitude and morphologic parameters from that of several breeds of horses and donkeys. This fact justifies obtaining values for a specific breed against which to compare values for the same breed.
Subject(s)
Electrocardiography/veterinary , Equidae/physiology , Animals , Female , MaleABSTRACT
A case of "Pulseless Disease" in a young boy with a sudden loss of consciousness for 15 minutes followed by hemiplegia and aphasia, absence of radial pulses on both sides and unobtainable blood pressure on the upper extremities is reported. This boy improved remarkably with triamcinolone. Because no definite etiology is established and because of its response to steroids, we ventured to classify it under the disease entity of "Pulseless Disease" or Takayasus Disease which according to the present concept may be a collagen disease. (Summary)
