Infertility — Follicular Flushing Versus Direct Aspiration
Citation(s)
Franasiak JM Follicular flushing: time to look elsewhere to improve in vitro fertilisation outcomes? BJOG. 2017 Jul;124(8):1197. doi: 10.1111/1471-0528.14628.
Roque M, Sampaio M, Geber S Follicular flushing during oocyte retrieval: a systematic review and meta-analysis. J Assist Reprod Genet. 2012 Nov;29(11):1249-54. doi: 10.1007/s10815-012-9869-9. Epub 2012 Oct 13. Review.
von Horn K, Depenbusch M, Schultze-Mosgau A, Griesinger G Randomized, open trial comparing a modified double-lumen needle follicular flushing system with a single-lumen aspiration needle in IVF patients with poor ovarian response. Hum Reprod. 2017 Apr 1;32(4):832-835. doi: 10.1093/humrep/dex019.
Oocyte Recovery Rate Following Follicular Flushing Versus Direct Aspiration in Women Undergoing IVF
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
