Restrictive ventricular septal defect in a dwarf rabbit

Tierärztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
N HildebrandtM Schneider

Abstract

A 9-week-old intact female dwarf rabbit was presented for evaluation of a heart murmur. Physical examination revealed a grade IV/VI systolic heart murmur with the maximal intensity over the right heart base. Evidence for a left-sided cardiomegaly was present on lateral and dorsoventral radiographs. An electrocardiogram was recorded in right lateral recumbency, which revealed a sinus tachycardia with a heart rate of 360 beats/minute. Echocardiography showed normal dimensions for the atria and ventricles. Two-dimensional echocardiography confirmed the presence of a perimembranous ventricular septal defect (VSD) with a diameter of 0.8 mm. Identification of the VSD was possible from a right (long and short axes) and a left parasternal window. Peak flow velocity of the systolic left to right shunt was 5.2 m/s. Additionally, a relative pulmonic stenosis (peak flow in the pulmonary artery of 1.02 m/s, pulsed-wave Doppler) was present. According to these findings, the VSD was classified as restrictive. At this time point, medical treatment was unnecessary. The re-examination after 7 weeks revealed unchanged morphological and haemodynamic findings. The VSD in this dwarf rabbit displayed both in the physical and echocardiographic examina...Continue Reading

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Citations

Jul 6, 2018·The Journal of Veterinary Medical Science·Makoto NakataKazuyuki Uchida
Jun 19, 2016·Case Reports in Veterinary Medicine·M Gallego, L Avedillo
Sep 14, 2021·Journal of the American Veterinary Medical Association·Sarah OzawaCatherine Gunther-Harrington

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