Experience of Tubo-Ovarian Abscess: A Retrospective Clinical Analysis of 318 Patients in a Single Tertiary Center in Middle Turkey

The objective was to identify the clinical and laboratory parameters, ultrasonographic (USG) morphology, and to predict surgical treatment for patients with tubo-ovarian abscess (TOA).Data for a total of 318 patients with a diagnosis of TOA between January 2005 and December 2016 were analyzed retrospectively at a referral center in Turkey. Patients requiring surgical treatment were compared with those who did not with respect to demographic characteristics and clinical, USG, and laboratory findings.Ninety-three (29.25%) patients whose medical treatment failed underwent surgical intervention and a minimally invasive drainage procedure. Menopausal status, diabetes mellitus, long-term intrauterine device use, fever at admission, bilateral and multi-cystic TOA, and TOA size are risk factors for surgical treatment. An abscess size of 6.5 cm was a significant indicator for surgical intervention (odds ratio = 16.632; 95% confidence interval 8.745-31.632; p < 0.05). The area under the curve (AUC = 0.868) in the receiver operating characteristic (ROC) curve analysis was found to be statistically significant for TOA size, with a threshold value of 6.5 cm. The recommended cutoff value for erythrocyte sedimentation rate (ESR) was 61.0 mm/h, and the cutoff point of the C-reactive protein (CRP) level in the ROC analysis was found to be 24.5 mg/dL. There were no complications in the USG-guided drainage surgical treatment group.The TOA size, complex multi-cystic mass image, CRP, and ESR are useful indicators as to whether surgical treatment is required for the management of TOA. The USG-guided drainage was less invasive with fewer complications and should be the preferred surgical treatment.