Gooding J P, Robinson W F, Mews G C
Am J Vet Res. 1986 Feb;47(2):296-300.
Seventeen clinically normal adult English Cocker Spaniels from a kennel population with a history of cardiomyopathy were assessed, using M-mode echocardiography, to establish reference values for left ventricular (LV) dimensions for this breed of dog. Echocardiographic measurements were compared with postmortem measurements in 10 of 17 dogs. The LV weight calculated from the echocardiographic measurements correlated significantly with LV weight at postmortem (P less than 0.05). Echocardiographic measurements of end diastolic and end systolic diameters for the 17 dogs correlated significantly with body surface area (P less than 0.01). Measurements of the interventricular septum were in close agreement with values in clinically normal dogs and were significantly correlated with postmortem measurements (r = 0.94, P less than 0.01). However, 76% of the measurements for LV caudal wall thickness in this group of dogs were above the normal range. Calculation of fractional shortening values identified a group of 5 dogs with reduced fractional shortening (mean +/- SD, 20.97 +/- 3.66%), which indicates that a depression in contractility may be present in some apparently healthy dogs of this kennel population. The remaining 12 dogs had fractional shortening values of mean +/- SD, 34.26 +/- 4.54%.
对17只来自有心肌病病史犬舍群体的临床正常成年英国可卡犬进行了评估，采用M型超声心动图来确定该犬种左心室（LV）尺寸的参考值。在17只犬中的10只犬身上，将超声心动图测量结果与死后测量结果进行了比较。根据超声心动图测量计算出的左心室重量与死后左心室重量显著相关（P小于0.05）。17只犬的舒张末期和收缩末期直径的超声心动图测量结果与体表面积显著相关（P小于0.01）。室间隔的测量结果与临床正常犬的值非常一致，并且与死后测量结果显著相关（r = 0.94，P小于0.01）。然而，这组犬中76%的左心室后壁厚度测量值高于正常范围。缩短分数值的计算确定了一组5只缩短分数降低的犬（平均值±标准差，20.97±3.66%），这表明该犬舍群体中一些看似健康的犬可能存在收缩力下降的情况。其余12只犬的缩短分数值为平均值±标准差，34.26±4.54%。
