{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,17]],"date-time":"2026-05-17T07:48:24Z","timestamp":1779004104282,"version":"3.51.4"},"reference-count":37,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2005,8,22]],"date-time":"2005-08-22T00:00:00Z","timestamp":1124668800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Ultrasound in Obstet &amp;amp; Gyne"],"published-print":{"date-parts":[[2005,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>To evaluate the importance of isolated pelvic free fluid (FF) detected by ultrasound examination in pregnant patients and in non\u2010pregnant reproductive age women with blunt abdominal trauma (BAT).<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Reproductive age women aged 10\u201350 years who presented with BAT and underwent focused abdominal sonography for trauma (FAST) from January 1995 to June 2002 at a Level 1 trauma center were included. Patients were assigned to four groups according to the location of FF detected by ultrasound (Group 1, no FF; Group 2, FF in pelvis; Group 3, FF in abdomen; Group 4, FF in abdomen and pelvis). Ultrasound findings were compared with intra\u2010abdominal and pelvic injuries detected by computed tomography and\/or laparotomy. Pair\u2010wise comparison was performed using a Fisher's exact test.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Ultrasound detection of FF in the abdomen alone or FF in the abdomen and pelvis was significantly associated with intra\u2010abdominal injury (IAI) compared to those without FF (<jats:italic>P<\/jats:italic> &lt; 0.001) for both pregnant and non\u2010pregnant reproductive age women. FF isolated to the pelvis was also associated with a higher injury rate compared to no FF in pregnant women (30% vs. 3%, <jats:italic>P<\/jats:italic> = 0.005) and in non\u2010pregnant reproductive age women (39.5% vs. 3.7%, <jats:italic>P<\/jats:italic> &lt; 0.001).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>In reproductive age women with BAT, ultrasound detection of FF in the abdomen alone, in both the abdomen and pelvis, or isolated to the pelvis is associated with a higher IAI rate. Therefore, isolated FF in the pelvis should not necessarily be considered physiological in pregnant and non\u2010pregnant patients with BAT. Copyright \u00a9 2005 ISUOG. 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