Influence of the wing-of-the-nostrils correction procedure on the change of the acid-base balance parameters and oxygen concentration in the arterial blood in French bulldogs
Influence of the wing-of-the-nostrils correction procedure on the change of the acid-base balance parameters and oxygen concentration in the arterial blood in French bulldogs
Brachycephalic syndrome develops as a result of a specific build of splanchnocranium. In dogs of
brachycephalic breeds, an impairment of correct gas exchange occurs. 5 French bulldogs at the age of
11-14 months, which suffered from continuous mixed-type dispnoea and lowered effort tolerance,
were examined. Apart from the above-mentioned symptoms, the occurrence of strong external nostril
stenosis was noted in the clinical examination. The symptoms observed together with the nostril
stenosis indicated a possibility of an occurrence of the brachycephalic syndrome. 1 ml of full blood
was drawn from the femoral artery. Acid-base balance parameters were determined in the arterial
blood: pH, pCO₂, HCO₃ -, and pO₂. The wing-of-the-nostrils correction procedure were carried out in
general anaesthesia. In premedication, the patients received medetomidine and after 15 minutes,
fentanyl together with atropine. The induction of propofol was carried out. After four weeks from the
procedure, blood was collected and the acid-base balance and pO₂ parameters were again determined.
The obtained values of the acid-base balance and pO₂ parameters showed a noticeable influence
of the wing-of-the-nostrils correction procedure on the values of the parameters determined.
The results of the blood gasometry obtained prior to the procedure clearly indicate the occurrence of
respiratory acidosis. The correction of wings of the nostrils significantly influenced saturation of the
arterial blood with oxygen and the symptoms of dispnoea observed by the owners and episodes of
apnoea and the loss of consciousness entirely subsided.
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