Canceled Cycle
An ART treatment cycle that is discontinued before oocyte retrieval or embryo transfer due to poor response or other complications.
Full Definition
A canceled cycle refers to the premature termination of an ART treatment cycle before reaching its intended endpoint. Cycles may be canceled during stimulation phase due to poor ovarian response, excessive response with OHSS risk, premature ovulation, or other medical concerns. Post-retrieval cancellations may occur due to fertilization failure, poor embryo development, or endometrial factors. Cycle cancellation rates are important quality metrics, with typical cancellation rates of 5-15% depending on patient population and clinic protocols. Documentation should clearly specify the reason and timing of cancellation.
Usage
Usage note: Always document the specific reason and timing of cancellation for quality improvement and future treatment planning.
In Context
- "The cycle was canceled on day 10 of stimulation due to poor ovarian response with only two follicles developing." — Clinical documentation
- "Post-retrieval cycle cancellation was necessary due to complete fertilization failure." — Treatment summary