TITLE:
Anterior Mitral Valve Orifice in a Dog
AUTHORS:
Başar Ulaş Sayilkan, Yücel Meral, Emre Küllük, Duygu Dalgin
KEYWORDS:
Dog Echocardiography, Anterior Mitral Valve Orifice, Degenerative Mitral Valve Disorder, Mitral Regurgitation, Doppler Echocardiography
JOURNAL NAME:
Open Journal of Veterinary Medicine,
Vol.11 No.3,
March
31,
2021
ABSTRACT: The patient was admitted to OndokuzMayıs University Animal Hospital
Internal Medicine outpatient clinic with complaints of epileptic seizures and
hypothyroidism. A description of the patient’s owner is available in the
history information. There was no physician information. Bradycardia was found
in the electrocardiography of the patient. 2-D,
M-Mode, PW, CW and Color doppler examinations were performed. Left-ventricular
hypokinetic and mitral and tricuspidal valve movements were observed with
limited M-Mode imaging. Anterior mitral orifice of 2 mm width was detected on
septal mitral valve by PW doppler and color doppler. With this orifice, the
presence of regurgitant jet, which covers LA at a rate of 1/3 and was 3.2
m/sec, together with mitral regurgitation (0.5 m/sec.), was demonstrated. PISA
calculations; VFR (mL/s), ERO (mm2) and RVol (mL/pulse) values were calculated as if there were
mitral regurgitation and data were obtained for mild-moderate mitral regurgitation. Therefore, no operative treatment of the
orifice was recommended. Mitral valve orifice is a rare pathology and this is the first report in
canine veterinary practice with degenerative mitral valve disorder. We aimed to
underline the possibility of mitral orifice development in degenerative mitral
valve disorders, known to present with vegetations and varying degrees of
prolapsus, conventionally.