Sammanfattning

Plasma concentration of immunoreactive atrial natriuretic peptide (ir-ANP) was investigated in 83 Cavalier King Charles Spaniels with variable severity of mitral regurgitation caused by chronic valvular disease (CVD). Severity of mitral incompetence was assessed by echocardiography. Significant differences in plasma concentrations of ir-ANP were not found between clinically normal dogs (New York Heart Association functional class O), dogs with only cardiac murmur (class I), and dogs with echocardiographic evidence of slight to moderate left atrial and ventricular dilatation (class II), Dogs with severe left atrial and ventricular dilatation and clinical signs of congestion (classes III and IV) were found to have significantly (P < 0.001) increased plasma concentration of ir-ANP. Overall, moderate degree of association was found between plasma concentration of ir-ANP and left atrial and left ventricular diameters (Pearson's r 0.65, 0.60, respectively, P < 0.001), as well as heart rate (r = 0.47, P < 0.01). However, left atrial enlargement was found to have the predominant effect on plasma ir-ANP concentration. It is concluded that the plasma concentration of ir-ANP did not become markedly increased before decompensation of chronic mitral regurgitation associated with severe enlargement of the left atrium and ventricle in Cavalier King Charles Spaniels.

Publicerad i

American Journal of Veterinary Research
1994, Volym: 55, nummer: 5, sidor: 698-703
Utgivare: AMER VETERINARY MEDICAL ASSOC

SLU författare

• Häggström, Jens

  • Institutionen för fysiologi, Sveriges lantbruksuniversitet
    

• Hansson, Kerstin

  • Institutionen för klinisk radiologi, Sveriges lantbruksuniversitet
    

• Kvart, Clarence

  • Institutionen för fysiologi, Sveriges lantbruksuniversitet
    

• Olsson, Kerstin

  • Institutionen för djurfysiologi, Sveriges lantbruksuniversitet
    

UKÄ forskningsämne

Klinisk vetenskap


Publikationens identifierare

DOI: https://doi.org/10.2460/ajvr.1994.55.05.698

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/83977