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Ectopic pregnancy.

Abstract
Ectopic pregnancy occurs at a rate of 19.7 cases per 1,000 pregnancies in North America and is a leading cause of maternal mortality in the first trimester. Greater awareness of risk factors and improved technology (biochemical markers and ultrasonography) allow ectopic pregnancy to be identified before the development of life-threatening events. The evaluation may include a combination of determination of urine and serum human chorionic gonadotropin (hCG) levels, serum progesterone levels, ultrasonography, culdocentesis and laparoscopy. Key to the diagnosis is determination of the presence or absence of an intrauterine gestational sac correlated with quantitative serum beta-subunit hCG (beta-hCG) levels. An ectopic pregnancy should be suspected if transvaginal ultrasonography shows no intrauterine gestational sac when the beta-hCG level is higher than 1,500 mlU per mL (1,500 IU per L). If the beta-hCG level plateaus or fails to double in 48 hours and the ultrasound examination fails to identify an intrauterine gestational sac, uterine curettage may determine the presence or absence of chorionic villi. Although past treatment consisted of an open laparotomy and salpingectomy, current laparoscopic techniques for unruptured ectopic pregnancy emphasize tubal preservation. Other treatment options include the use of methotrexate therapy for small, unruptured ectopic pregnancies in hemodynamically stable patients. Expectant management may have a role when beta-hCG levels are low and declining.
AuthorsJ L Tenore
JournalAmerican family physician (Am Fam Physician) Vol. 61 Issue 4 Pg. 1080-8 (Feb 15 2000) ISSN: 0002-838X [Print] United States
PMID10706160 (Publication Type: Journal Article, Review)
Chemical References
  • Biomarkers
Topics
  • Biomarkers (blood)
  • Decision Trees
  • Diagnosis, Differential
  • Female
  • Humans
  • Pregnancy
  • Pregnancy, Ectopic (blood, diagnosis, epidemiology, etiology, therapy)
  • Risk Factors

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