Does she have adnexal torsion? Prediction of adnexal torsion in reproductive age women

Adnexal torsion was surgically diagnosed in 111/199 (55.8%) cases. On the multivariate logistic regression analysis, complaints of nausea/vomiting (OR 4.5, 95% CI 1.8–11.1), peritoneal irritation signs (OR 100.9, 95% CI 4.2–2421.9), elevated white blood cell count > 11,000 cells/mL (OR 3.7, 95% CI 1.3–10.8), presence of free pelvic fluid on ultrasound (OR 34.4, 95% CI 6.7–177.9), ultrasound findings suggestive of ovarian edema (OR 4.2, 95% CI 1.5–11.6), ultrasound findings suggestive of benign cystic teratoma (OR 7.8. 95% CI 1.2–49.4) and location of the ultrasound pathology on the right side (OR 4.7. 95% CI 1.9–11.9) were positively associated with adnexal torsion, while ultrasound findings suggestive of hemorrhagic corpus luteum cyst (OR 0.04, 95% CI 0.008–0.2) were negatively associated with adnexal torsion. By combining these eight parameters, the ROC curve was calculated, yielding an area under the curve of 0.93, 95% CI 0.90–0.97 (p < 0.0001).