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Chai N.,French Natural History Museum | Pouchelon J.L.,National Veterinary School of Alfort | Pouchelon J.L.,French Institute of Health and Medical Research | Bouvard J.,National Veterinary School of Alfort | And 9 more authors.
Journal of Zoo and Wildlife Medicine | Year: 2016

Electrocardiography represents a relevant diagnostic tool for detecting cardiac disease in animals. Elephants can present various congenital and acquired cardiovascular diseases. However, few electrophysiologic studies have been reported in captive elephants, mainly due to challenging technical difficulties in obtaining good-quality electrocardiogram (ECG) tracings, and no data are currently available for free-ranging Asian elephants (Elephas maximus). The purpose of this pilot prospective study was to evaluate the feasibility of using a simple method for recording ECG tracings in wild, apparently healthy, unsedated Asian elephants (n = 7) in the standing position. Successful six-lead recordings (I, II, III, aVR, aVL, and aVF) were obtained, with the aVL lead providing the best-quality tracings in most animals. Variables measured in the aVL lead included heart rate, amplitudes and duration of the P waves, QRS complexes, T and U waves, and duration of the PR, QT, and QU intervals. A negative deflection following positive P waves, representative of an atrial repolarization wave (Ta wave), was observed for five out of the seven elephants. © Copyright 2016 by American Association of Zoo Veterinarians. Source


Diaz-Delgado J.,University of Las Palmas de Gran Canaria | Espinosa De Los Monteros A.,University of Las Palmas de Gran Canaria | Fernandez-Maldonado C.,Agencia Medio Ambiente y Agua de Andalucia | Arbelo M.,University of Las Palmas de Gran Canaria | And 3 more authors.
Diseases of Aquatic Organisms | Year: 2012

A diagnosis of mixed testicular neoplasia in a short beaked common dolphin Delphinus delphis involving a Sertoli cell tumor, an interstitial (Leydig) cell tumor and a seminoma is presented. Lymphatic spread of the Sertoli cell tumor to an adjacent retroperitoneal lymph node was observed. Testicular neoplasms have been infrequently reported in marine mammals. Demonstration of clinical signs and further health implications is extremely challenging when dealing with non accessible wildlife species, such as dolphins. However, metastatic potential for these neoplastic conditions should be considered. © Inter-Research 2012. Source

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