🎗️ Ovarian Cancer Suidan Score (Suboptimal Cytoreduction Prediction)
Predict suboptimal primary cytoreduction (residual > 1 cm) risk in advanced ovarian cancer from pre-operative CT findings, CA-125 and clinical factors. Instant, browser-side.
Ovarian Cancer Suidan Score (Suboptimal Cytoreduction Prediction)
Age ≥ 60 years (+1)
CA-125 ≥ 500 U/mL (+1)
Suprarenal retroperitoneal nodes (incl. supradiaphragmatic) > 1 cm (+1)
Diffuse small-bowel adhesions/thickening (+1)
Perisplenic lesion > 1 cm (+2)
Small-bowel mesentery lesion > 1 cm (+2)
Lesion at the root of the superior mesenteric artery > 1 cm (+2)
ASA class 3–4 (+3)
Lesser-sac lesion > 1 cm (+4)
When to use
Support the primary-debulking vs neoadjuvant-chemotherapy decision in advanced ovarian/tubal/peritoneal cancer.
How it works
Weighted sum: lesser sac +4; ASA 3–4 +3; perisplenic / small-bowel mesentery / SMA root each +2; age ≥ 60 / CA-125 ≥ 500 / suprarenal nodes / diffuse small bowel each +1. Bands 0 → ~ 5%, up to ≥ 9 → ~ 74% suboptimal.
Key points
- The model uses pre-operative abdominopelvic CT plus CA-125 and clinical factors, with predictive accuracy around 0.76.
- Higher scores (≥ 7, suboptimal rate ≥ 52%) favour neoadjuvant chemotherapy + interval debulking or referral to an experienced centre.
- It is decision-support, not a hard cut-off — combine with performance status, surgeon experience and multidisciplinary input.
- The CA-125 ≥ 500 U/mL threshold is specific to this model.
References
Decision support for licensed clinicians only; not a substitute for clinical judgement, diagnosis or local protocols.