Diagnostic Value of Serum Beta-hCG Measured by EIA in Suspected Ectopic Pregnancy / 영남의대학술지

ABSTRACT

Thirty-four patients with suspected ectopic pregnancy whose serum hCG levels had been measured by beta-hCG EIA before surgery were evaluated retrospectively. The results were as follows 1. Final diagnosis of thirty- four patients with suspected ectopic pregnancy comprised twenty-eight tubal pregnancy, five ruptures of hemorrhagic corpus luteum and one tubo-ovarian abscess. One of the five patients with rupture of hemorrhagic corpus luteum was accompanied by missed abortion. 2. Range of serum hCG levels in twenty-eight patients with tubal pregnancy was 59-21, 980 mIU/ml and that of four patients with rupture of hemorrhagic corpus luteum and one patient with tubo-ovarian abscess was 0.6-6.6 mIU/ml. Serum hCG level of a patient with rupture of hemorrhagic corpus luteum who was accompanied by missed abostion was 200 mIU/ml. 3. Serum hCG levels in twenty-two of twenty-eight patients with tubal pregnancy were lower than 3,000 mIU/ml. Low serum hCG level below 100 mIU/ml and high serum hCG levl above 6,500 mIU/ml were noticed in four and six patients with tubal pregnancy recpectively. 4. Mean serum hCG levels (±SD) of twelve patients with tubal pregnancy who had intraabdominal free blood of less than 500ml and sixteen patients with tubal pregnancy who had intraabdominal free blood of more than 500ml were 4,131 (±7,801) mIU/ml and 3,208 (±5,081) mIU/ml, respectively. There was no statistical difference in the mean level of serum hCG between both group (P>0.05). 5. Mean serum hCG levels (±SD) of thirteen patients with unruptured tubal pregnancy and fifteen patients with ruptured tubal pregnancy were 2,628 (±5,448) mIU/ml and 4,449 (±6,938) mIU/ml, respectively. Mean level of serum hCG was statistically higher in ruptured tubal pregnancy (P<0.01). 6. Positive rate of urine pregnancy test in the diagnosis of ectopic pregnancy was 64% (16/25) and mean range of serum hCG level of nine patients with false negative result were 353 mIU/ml and 59­933 mIU/ml.