Comparative study of 4 echocardiographic methods of left ventricular measurement in German Shepherd dogs.

Objectives: To compare dimensions and shortening fraction (SF) of the left ventricle (LV) obtained from two-dimensional (2D) and M-mode imaging of short and long-axis views.

Animals: 40 healthy, adult German Shepherd dogs.

Methods: Left ventricular measurements were obtained using 4 echocardiographic methods: M-mode in short and long-axis and 2D imaging in short and long-axis.

Electrocardiographic parameters of captive tufted capuchins (Cebus apella) under chemical immobilization.

This study presents the electrocardiogram findings from 97 captive tufted capuchin monkeys (Cebus apella) at the São Paulo Zoo (São Paulo, Brazil) while under ketamine anesthesia. The results did not differ greatly from data of domestic carnivores or other studied primate species. The most common rhythm recorded was normal sinus rhythm, followed by normal sinus rhythm with wandering pacemaker.