RESUMO
To report the serum calcium, phosphorus and protein abnormalities in cancer subjects during abdominal surgery. 41 patients are collected [32 F/9 M] with a mean of age 57.78 +/- 12.7 years, who had undergone abdominal surgery. Serum samples were obtained on the day before surgery and on days 3 and 8 post surgery for measurement of serum total calcium, protein, and phosphorus. The different parameters studied fall significantly at day 3 and increase at day 8 postsurgery in all patients. The means levels of total calcium, phosphorus and protein before surgery are 2,04 +/- 0,2 mmol/l, 1,12 +/- 021 mmol/l and 55 +/- 7 g/l vs 1,9 +/- 0,26 mmol/l, 0,98 +/- 0,18 mmol/l and 50 +/- 8 g/l at day 3 post surgery. Post operative hypocalcemia was attributed to the fall in protein and the decrease in phosphorus may be resulted from renal losses of phosphorus due to extracellular volume expansion