Objective: To assess cycle outcomes when antimüllerian hormone (AMH) is ultralow (≤0.16 ng/mL) and to determine which parameters contribute to the probability of cycle cancellation and/or outcome.
Design: Retrospective analysis.
Setting: Not applicable.
Patient(s): 5,087 (7.3%) fresh and 243 (1.5%) thawed cycles with ultralow AMH values.
Intervention(s): Linear and logistic regression, comparison with age-matched cycles with normal AMH concentrations.
Main outcome measure(s): Cancellation rate; number of retrieved oocytes, embryos, transferred embryos, and cryopreserved embryos; clinical pregnancy, live-birth, and multiple birth rates.
Result(s): The total cancellation rate per cycle start for fresh cycles was 54%. Of these, 38.6% of the cycles were canceled before retrieval, and 3.3% of cycles obtained no oocytes at time of retrieval. Of all retrieval attempts, 50.7% had three oocytes or fewer retrieved, and 25.1% had no embryo transfer. The live-birth rates were 9.5% per cycle start. Cycles with ultralow AMH levels compared with age-matched normal AMH cycles demonstrated more than a fivefold greater pre-retrieval cancellation rate, a twofold less live-birth rate per cycle and a 4.5-fold less embryo cryopreservation rate.
Conclusion(s): Refusing treatment solely on the basis of ultralow AMH levels is not advisable, but patients should be counseled appropriately about the prognostic factors for cancellation and outcomes.
Keywords: AMH; ART outcomes; low AMH; multiple births; prognostic factors; ultralow AMH.
Copyright © 2016 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.