Annals of emergency medicine · 1997
Pelvic ultrasound performed by emergency physicians for the detection of ectopic pregnancy in complicated first-trimester pregnancies.
СтатьяНазвание и аннотация: Перевод в очереди
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Durham B, Lane B, Burbridge L, Balasubramaniam S
Аннотация
STUDY OBJECTIVE: To determine the accuracy and application of pelvic ultrasound performed by emergency physicians in detecting ectopic pregnancy (EP) in complicated first-trimester pregnancies.
METHODS: We studied consecutive pelvic ultrasounds performed in all women who presented with abdominal pain or vaginal bleeding during the first trimester of pregnancy over a 6-month period. Patients with clinical evidence of incomplete abortion were not included. We compared ultrasound results with subsequent ultrasound findings by the radiology department and correlated them with follow-up diagnoses and outcomes.
RESULTS: Of the 136 eligible patients, a final diagnosis was rendered in 125; 11 were lost to follow-up. These ED ultrasound findings were recorded: established intrauterine pregnancy (IUP) with embryonic structures, 87 (70%); indeterminate scan revealing no distinct evidence of IUP or EP, 15 (12%); early intrauterine gestational sac of less than 6 weeks without embryonic structures, 12 (10%); EP, 8 (6%); blighted ovum, 2 (2%); and molar pregnancy, 1 (1%). The initial ED ultrasound determination was consistent with radiology department findings, final outcome, or both in 121 (96%) (95% confidence interval [CI], 91% to 97%). ED ultrasound accurately identified 87 pregnancies with intrauterine embryonic structures, including 5 patients with fetal demise (95% Cl, 97% to 100%). Diagnosis of pregnancy location in these 87 patients effectively ruled out EP, with a negative predictive value of 100%. The sensitivity and specificity of ED ultrasound in the detection of EP were 90% and 88%, respectively.
CONCLUSION: Pelvic ultrasonography performed by emergency physicians can be used to rule out EP and make an accurate diagnosis in most patients with complicated first-trimester pregnancies during the initial ED visit. The remaining patients at risk can be identified and a diagnosis made by means of follow-up ultrasound and serial hCG determinations.
METHODS: We studied consecutive pelvic ultrasounds performed in all women who presented with abdominal pain or vaginal bleeding during the first trimester of pregnancy over a 6-month period. Patients with clinical evidence of incomplete abortion were not included. We compared ultrasound results with subsequent ultrasound findings by the radiology department and correlated them with follow-up diagnoses and outcomes.
RESULTS: Of the 136 eligible patients, a final diagnosis was rendered in 125; 11 were lost to follow-up. These ED ultrasound findings were recorded: established intrauterine pregnancy (IUP) with embryonic structures, 87 (70%); indeterminate scan revealing no distinct evidence of IUP or EP, 15 (12%); early intrauterine gestational sac of less than 6 weeks without embryonic structures, 12 (10%); EP, 8 (6%); blighted ovum, 2 (2%); and molar pregnancy, 1 (1%). The initial ED ultrasound determination was consistent with radiology department findings, final outcome, or both in 121 (96%) (95% confidence interval [CI], 91% to 97%). ED ultrasound accurately identified 87 pregnancies with intrauterine embryonic structures, including 5 patients with fetal demise (95% Cl, 97% to 100%). Diagnosis of pregnancy location in these 87 patients effectively ruled out EP, with a negative predictive value of 100%. The sensitivity and specificity of ED ultrasound in the detection of EP were 90% and 88%, respectively.
CONCLUSION: Pelvic ultrasonography performed by emergency physicians can be used to rule out EP and make an accurate diagnosis in most patients with complicated first-trimester pregnancies during the initial ED visit. The remaining patients at risk can be identified and a diagnosis made by means of follow-up ultrasound and serial hCG determinations.