Sprung C L, Isikoff S K, Hauser M, Eisler B R
Crit Care Med. 1980 Nov;8(11):613-5. doi: 10.1097/00003246-198011000-00003.
Serum and pulmonary edema fluid samples of 26 patients with pulmonary edema were examined. The correlation coefficient comparing measured colloid osmotic pressure (COPm) to calculated colloid osmotic pressure (COPc) (Landis and Pappenheimer equation) was 0.84. Significant differences between COPm and COPc were noted when total protein (TP) concentrations were less than or greater than 5 g/dl (p < 0.001 and p < 0.01, respectively). Twenty-one of 69 samples (30%) had a greater than 4 mm Hg difference between measured and calculated values. COP should be measured rather than calculated for accurate determinations.
对26例肺水肿患者的血清和肺水肿液样本进行了检测。测量的胶体渗透压(COPm)与计算的胶体渗透压(COPc)(兰迪斯和帕彭海默方程)的相关系数为0.84。当总蛋白(TP)浓度低于或高于5 g/dl时,COPm和COPc之间存在显著差异(分别为p < 0.001和p < 0.01)。69个样本中有21个(30%)测量值与计算值之间的差异大于4 mmHg。为了准确测定,应测量而非计算COP。