AI Article Synopsis
- The study evaluates the effectiveness of serum markers CA19-9, CA125, and CP2 in diagnosing and predicting outcomes for mucinous ovarian tumors.
- The results show that combining CA19-9 with CA125 significantly increases diagnosis sensitivity for mucinous tumors, although it does not improve specificity.
- Additionally, patients with positive tumor markers who underwent cytoreductive surgery had better post-operative outcomes, highlighting CA19-9's potential as a key marker for prognosis.
Article Abstract
Objective: To evaluate the diagnostic and prognostic value of serum CA19-9, CA125 and CP2 in mucinous ovarian tumors.
Methods: In this retrospective study, the serum CA19-9, CA125 and CP2 levels of 273 hospitalized patients with ovarian tumors of either mucinous or non-mucinous type were analyzed.
Results: (1) CA19-9 had the biggest area under curve (AUC) in mucinous tumors followed with CA125 while CA125 and CP2 had bigger AUC in non-mucinous tumor. (2) For the diagnosis of mucinous tumors, CA19-9 and CA125 combination showed a greatly increased sensitivity compared with CA19-9 or CA125 alone (93.8% versus 75.0% and 66.7%, P<0.05) with no significant improvement of the specificity (P>0.05). For the diagnosis of non-mucinous tumors, CA125 and CP2 combination showed an increased sensitivity compared with CA125 or CP2 alone (85.0% versus 80.7%, P>0.05, 85.0% versus 70.6%, P<0.05) with no significant improvement of the specificity (P>0.05). (3) Seventy percent of tumor marker-positive patients could undergo cytoreductive surgery. Compared with those who could not undergo cytoreductive surgery, they were more likely to have normal tumor marker two months after surgery (P<0.05) and longer interval to re-elevation of tumor markers (P>0.05), with lower recurrence and death rate (P<0.05). All of the 20 tumor marker-negative patients could have cytoreductive surgery with only 10% recurrence. (4) CA19-9 increased mainly in recurrent mucinous tumor, while CA125 increased dominantly in recurrent non-mucinous tumor. (5) The survival rate of CA125 and CP2 positive patients was much lower than CA125 and CP2 negative patients (P<0.05), while the survival rate was similar between CA19-9 positive and CA19-9 negative patients.
Conclusions: CA19-9 is a sensitive index for diagnosis of mucinous ovarian tumors. Combination of CA19-9 with CA125 can improve the sensitivity of diagnosis and postoperative monitoring of mucinous ovarian tumors. Combination of CA125 with CP2 is more valuable in the diagnosis of non-mucinous ovarian tumors.
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