| Sumario: | Objectives: This study aimed to identify, through systematic literature review, the most reliable clinical, biological, and radiological signs of ovarian torsion in the pediatric population and to compare their diagnostic value.Methods: This is a systematic review of the literature, searching MEDLINE, EMBASE, and Cochrane Databases for articles published between January 1990 and January 2014.Results: From the 946 references initially identified, 14 retrospective publications fulfilled the inclusion criteria, involving a total of 663 episodes of ovarian torsion. Sudden onset abdominal pain with nausea and/or vomiting is the most frequent symptom of ovarian torsion. It can occur at any age, not only in menarchal or perimenarchal patients. Abdominal tenderness is present in 88.4% of patients, whereas only 24% have a palpable mass. Blood tests are commonly requested (51.4% of cases) but are not diagnostic. Abnormalities on plain abdominal radiograph include masses, calcifications, and ossified images. Ultrasound has a sensitivity for ovarian torsion of 79% and computerized tomographic scan of 42.2%. There is a significant diagnostic delay at 101.8 hours (median).Conclusions: Abdominal pain in children and adolescents is difficult to evaluate, and the diagnosis of ovarian torsion remains a challenge. Because of its potential complications, we need effective clinical tools. From our review of the literature, it was not possible to develop a diagnostic algorithm. Further research is needed to improve our practice and shorten the delay to diagnosis. Considering the low incidence of ovarian torsion, a multicenter prospective study would be required.
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