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Predictive value analysis of measurements of human chorionic gonadotropin, pregnancy specific beta 1-glycoprotein, placental lactogen, and cystine aminopeptidase for the diagnosis of ectopic pregnancy. 1983

G D Braunstein, and R H Asch

The diagnostic utility of serum and urinary human chorionic gonadotropin (hCG) measurements and serum measurements of pregnancy-specific beta 1-glycoprotein (PSBG), placental lactogen, and cystine aminopeptidase (CAP) was prospectively studied in 51 consecutive patients with suspected ectopic pregnancy who underwent laparoscopy or laparotomy. CAP was not detected in the sera of any patient with ectopic pregnancy. False-positive results in each assay were found in patients with intrauterine pregnancy or missed abortion. The overall efficiency of the tests were: urine hCG slide test, 47%; urine hCG tube test, 80%; serum hCG, 86%; serum PSBG, 82%; and human placental lactogen, 60%. Although measurement of serum hCG by radioimmunoassay is the most accurate biochemical test in predicting the correct diagnosis in patients with suspected ectopic pregnancy, the relatively high efficiency of the urinary hCG tube test, coupled with its ease of performance, low cost, and rapid turnaround time, makes it the most practical screening test.

UI MeSH Term Description Entries
D007813 Laparotomy Incision into the side of the abdomen between the ribs and pelvis. Minilaparotomy,Laparotomies,Minilaparotomies
D010122 Cystinyl Aminopeptidase A zinc-containing sialoglycoprotein that is used to study aminopeptidase activity in the pathogenesis of hypertension. EC 3.4.11.3. Cystine Arylamidase,Cystyl Aminopeptidase,Oxytocinase,Cystidyl Aminopeptidase,Cystinaminopeptidase,Cystine Aminopeptidase,Vasopressinase
D010535 Laparoscopy A procedure in which a laparoscope (LAPAROSCOPES) is inserted through a small incision near the navel to examine the abdominal and pelvic organs in the PERITONEAL CAVITY. If appropriate, biopsy or surgery can be performed during laparoscopy. Celioscopy,Laparoscopic Surgical Procedures,Peritoneoscopy,Surgical Procedures, Laparoscopic,Laparoscopic Assisted Surgery,Laparoscopic Surgery,Laparoscopic Surgical Procedure,Procedure, Laparoscopic Surgical,Procedures, Laparoscopic Surgical,Surgery, Laparoscopic,Surgical Procedure, Laparoscopic,Celioscopies,Laparoscopic Assisted Surgeries,Laparoscopic Surgeries,Laparoscopies,Peritoneoscopies,Surgeries, Laparoscopic,Surgeries, Laparoscopic Assisted,Surgery, Laparoscopic Assisted
D010928 Placental Lactogen A polypeptide hormone of approximately 25 kDa that is produced by the SYNCYTIOTROPHOBLASTS of the PLACENTA, also known as chorionic somatomammotropin. It has both GROWTH HORMONE and PROLACTIN activities on growth, lactation, and luteal steroid production. In women, placental lactogen secretion begins soon after implantation and increases to 1 g or more a day in late pregnancy. Placental lactogen is also an insulin antagonist. Choriomammotropin,Chorionic Somatomammotropin, Human,Human Placental Lactogen,Lactogen Hormone, Placental,Mammotropic Hormone, Placental,Somatomammotropin, Chorionic,Choriomammotrophin,HCS (Human Chorionic Somatomammotropin),HPL (Human Placental Lactogen),PAPP-D,Placental Luteotropin,Pregnancy-Associated Plasma Protein D,Chorionic Somatomammotropin,Human Chorionic Somatomammotropin,Lactogen, Placental,Luteotropin, Placental,Placental Lactogen, Human,Placental Mammotropic Hormone,Pregnancy Associated Plasma Protein D
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D011257 Pregnancy Proteins Proteins produced by organs of the mother or the PLACENTA during PREGNANCY. These proteins may be pregnancy-specific (present only during pregnancy) or pregnancy-associated (present during pregnancy or under other conditions such as hormone therapy or certain malignancies.) Placental Proteins,Proteins, Placental,Proteins, Pregnancy
D011268 Pregnancy-Specific beta 1-Glycoproteins Glycoproteins with the electrophoretic mobility of BETA-GLOBULINS, secreted by the placental TROPHOBLASTS into the maternal bloodstream during PREGNANCY. They can be detected 18 days after OVULATION and reach 200 mg/ml at the end of pregnancy. They are associated with fetal well-being. Pregnancy-Specific beta 1-Glycoprotein,SP1 Pregnancy Protein,Trophoblast-Specific beta 1-Glycoprotein,beta 1-Glycoprotein, Pregnancy-Specific,beta-1 Glycoprotein, Trophoblast-Specific,PAPP-B,PAPP-C,PSBG-1,Pregnancy Specific beta 1 Glycoprotein,Pregnancy Specific beta-1 Glycoprotein,Pregnancy Specific beta1-Glycoprotein.,Pregnancy-Associated Plasma Protein B,Pregnancy-Associated Plasma Protein C,Pregnancy-Associated beta-Plasma Protein,Pregnancy-Specific beta-1 Globulin,Schwangerschaftsprotein 1,Trophoblastic beta 1-Glycoprotein,Trophoblastic beta(1)-Globulin,Trophoblastic beta-Globulin,beta 1-Globulin, Trophoblast-Specific,1-Glycoproteins, Pregnancy-Specific beta,PAPP B,PSBG 1,Pregnancy Associated Plasma Protein B,Pregnancy Associated Plasma Protein C,Pregnancy Protein, SP1,Pregnancy Specific beta 1 Globulin,Pregnancy Specific beta 1 Glycoproteins,Protein, SP1 Pregnancy,Trophoblast Specific beta 1 Glycoprotein,Trophoblast-Specific beta 1-Globulin,Trophoblast-Specific beta-1 Glycoprotein,Trophoblastic beta Globulin,beta 1 Globulin, Trophoblast Specific,beta 1-Glycoproteins, Pregnancy-Specific,beta-1 Globulin, Pregnancy-Specific,beta-Globulin, Trophoblastic
D011271 Pregnancy, Ectopic A potentially life-threatening condition in which EMBRYO IMPLANTATION occurs outside the cavity of the UTERUS. Most ectopic pregnancies (>96%) occur in the FALLOPIAN TUBES, known as TUBAL PREGNANCY. They can be in other locations, such as UTERINE CERVIX; OVARY; and abdominal cavity (PREGNANCY, ABDOMINAL). Ectopic Pregnancy,Pregnancy, Extrauterine,Ectopic Pregnancies,Extrauterine Pregnancies,Extrauterine Pregnancy,Pregnancies, Ectopic,Pregnancies, Extrauterine
D011446 Prospective Studies Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group. Prospective Study,Studies, Prospective,Study, Prospective
D005189 False Positive Reactions Positive test results in subjects who do not possess the attribute for which the test is conducted. The labeling of healthy persons as diseased when screening in the detection of disease. (Last, A Dictionary of Epidemiology, 2d ed) False Positive Reaction,Positive Reaction, False,Positive Reactions, False,Reaction, False Positive,Reactions, False Positive

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