An evaluation of antenatal fetal acoustic stimulation

David B. Schwartz, Susan J. Sherman, Gregory L. Goyert, Pamela Fields, Sally Simkins, Yahya Daoud

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Fetal heart rate reactivity was evaluated following acoustic stimulation testing (AST). The AST and NST (non-stress test) were compared with regards to certain adverse perinatal outcome criteria, and in a selected sample of cases, to other surveillance tests. These tests were the oxytocin challenge test (OCT) and biophysical profile (BPP). 479 tests were performed on 240 high-risk patients. The AST significantly increased fetal heart rate reactivity. With regards adverse perinatal outcome criteria, there was no significant difference between the AST and NST in relation to sensitivity, specificity or predictive values. In the 38 patients with both non-reactive NSTs and reactive ASTs, 5 (13.5%) had immediate follow-up surveillance tests (OCTs and/or BPPs) that were non-reassuring and necessitated delivery. In four of the five cases, there was evidence of potential fetal compromise. These preliminary observations suggest that the AST may have evoked reactivity in fetuses with early compromise, and raise concerns about replacing the NST with the AST as a primary screening test of fetal well-being.

Original languageEnglish (US)
Pages (from-to)97-103
Number of pages7
JournalEuropean Journal of Obstetrics and Gynecology and Reproductive Biology
Issue number2
StatePublished - Jul 1 1991
Externally publishedYes


  • Antenatal testing
  • Fetal acoustic stimulation

ASJC Scopus subject areas

  • Reproductive Medicine
  • Obstetrics and Gynecology


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