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Predictive value of serum human chorionic gonadotropin ratio, progesterone and inhibin A for expectant management of early pregnancies of unknown location.
MedLine Citation:
PMID:  22921576     Owner:  NLM     Status:  Publisher    
OBJECTIVE: To evaluate serum human chorionic gonadotropin (hCG) ratio, progesterone and inhibin A as single parameters and in combination for the prediction of spontaneous resolution of pregnancies of unknown location (PUL). STUDY DESIGN: Prospective observational study of 105 consecutive patients with a diagnosis of PUL. Serum levels of hCG, progesterone and inhibin A were determined at the first visit and after 2 days. Patients were followed clinically until a final diagnosis of spontaneously resolving PUL, viable or non-viable intrauterine pregnancy, or ectopic pregnancy with need of laparoscopic intervention had been reached. Different combinations of hCG ratio (hCG at 48h/hCG at 0h), s-progesterone and s-inhibin A were investigated to find the best predictor for successful expectant management. RESULTS: The final pregnancy outcomes were: 52 spontaneously resolving PUL (49.5%), 37 viable intrauterine pregnancies (35.2%), 8 non-viable intrauterine pregnancies (7.6%), 7 ectopic pregnancies (6.7%), and one molar pregnancy (1.0%). An hCG ratio<0.80 predicted spontaneously resolving PUL with positive and negative predictive values (PPV and NPV), sensitivity, and specificity of 0.98, 0.78, 0.72, and 0.99, respectively. In patients with hCG ratio≥0.80, a combination of s-progesterone<20nmol/l and s-inhibin A<30pg/ml predicted spontaneously resolving PUL with PPV, NPV, sensitivity and specificity of 0.92, 0.96, 0.85, and 0.98 respectively. CONCLUSION: Our results suggest that patients with PUL and hCG ratio<0.80 display a high probability of spontaneously resolving PUL with minimum need of follow-up. In cases of hCG ratio≥0.80, a combination of s-progesterone<20nmol/l and s-inhibin A<30pg/ml, may be a reliable predictor of spontaneously resolving PUL. The safety of this approach should be tested in large prospective studies.
Huda Majeed; Astrid Højgaard; Peter Johannesen; Marie Louise Ladefoged; Axel Forman; Pinar Bor
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-24
Journal Detail:
Title:  European journal of obstetrics, gynecology, and reproductive biology     Volume:  -     ISSN:  1872-7654     ISO Abbreviation:  Eur. J. Obstet. Gynecol. Reprod. Biol.     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-8-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375672     Medline TA:  Eur J Obstet Gynecol Reprod Biol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ireland Ltd. All rights reserved.
Department of Obstetrics and Gynecology, Randers Regional Hospital, Denmark.
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