740 likes | 996 Views
LIFE AFTER NEW IVF LEGISLATION IN TURKEY . Hakan Ozornek, MD EUROFERTIL Istanbul. LIFE AFTER NEW IVF LEGISLATION . New legislation Mild stimulation Antagonist Letrazol SET IVF in Europe IVF in Turkey. New IVF legislation. The new IVF legislation since March 2010
E N D
LIFE AFTER NEW IVF LEGISLATION IN TURKEY Hakan Ozornek, MD EUROFERTIL Istanbul
LIFE AFTER NEW IVF LEGISLATION • New legislation • Mild stimulation • Antagonist • Letrazol • SET • IVF in Europe • IVF in Turkey
New IVF legislation • The new IVF legislation since March 2010 • Patients under 35 the first and second cycles should be transferred single embryo, • All other patients should be transferred maximum double embryo.
Mild stimulation • The administration of low doses (fewer days) of exogenous gonadotrophinsin GnRH antagonist co-treated cycles, and/or oral compounds(like anti-estrogens, or aromatase inhibitors) for ovarianstimulation for IVF, aiming to limit the number of oocytes obtained to less than eight.
Mild stimulation • Less complex • Less time consuming • Cheaper (making IVF more accessible for a broader patient population) • Reduced chances for complications • Reduced chances for discomfort • Reduced chances for drop-out • Effects on oocyte quality • Effects on endometrial receptivity
Mild vs Standart Mild:GnRH antagonist and single embryo transfer. Standard:GnRHagonist long protocol along with the transferof two embryos. A mild treatment strategy for in-vitro fertilisation: a randomised non-inferiority trial randomized trial. Heijnenet al., Lancet, 2007
Mild vs Standart Milder ovarian stimulation for in-vitrofertilization reduces aneuploidy in the human preimplantation embryo: a randomized controlled trial. Baart et al., Human Reprod, 2007
Advantages of Antagonists • No initialflareup • Shortertreatmentduration • Lessgonadotrophinconsumption • Lessclinicattendances • Lower risk of OHSS • No hypooestrogenemiceffects • Weightgain, headache, hot flushes, moodchanges, vomiting
Agonist Antagonist
Disadvantages of Antagonists Lowerpregnancyrates ?
Clinicalpregnancy rate (PCOS) Grisinger G, RBM Online, 2006
Clinicalpregnancy rate (Poor) Grisinger G, RBM Online, 2006
Normoresponder-Antagonist Tubalinfertility - DIR Engel, et al., 2006
Normoresponder-Antagonist TheEuropeanandMiddle East OrgalutranStudyGroup, 2001
Clinicalpregnancy rate Al-Inany HG, RBM Online, 2007
Livebirth rate Al-Inany HG, RBM Online, 2007
Livebirth rate Al-Inany HG, RBM Online, 2007
Livebirth rate Kolibianakis EM, HumanReprodUpdate, 2006
Livebirth rate Kolibianakis EM, HumanReprodUpdate, 2006
Livebirth rate (Gonadotropintype) Kolibianakis EM, HumanReprodUpdate, 2006
Livebirth rate (protocoltype) Kolibianakis EM, HumanReprodUpdate, 2006
Livebirth rate (agonisttype) Kolibianakis EM, HumanReprodUpdate, 2006
Livebirth rate (antagonist protocol) Kolibianakis EM, HumanReprodUpdate, 2006
Livebirth rate (antagonist type) Kolibianakis EM, HumanReprodUpdate, 2006
Conclusions • Meta-analysescomparingGnRHagonistsandantagonistshavecalculatedalmostidenticaloddsratios (0.82-0.86) fortheprobability of livebirth, althoughthedifferencewasstatisticallysignificant in oneanalysisand not in another. The difference is unlikely to be of clinical significance. • Ovarian stimulation with antagonists co-treatment can provide live birth rates comparable to those achieved with the standart long agonist protocol and has advantages in terms of tolerability and safety.
Analoguse in EUROFERTIL 2006-08 * P<0.05
Milder stimulation Letrazol 2.5 mg HCG US/LH test OPU 3 4 5 6 7 8 9 10 11 12 13 14 15 Progesteron Indomethasin 50 mg
Indomethacin • Anon-steroidal anti-inflammatorydrug (NSAID), • Anti-prostaglandin effects. • Inhibitionof cyclooxygenase, the enzyme thatcatalysesthe synthesis of prostaglandins, which are essentialmediators of ovulation. • Athanasiouet al., (1996) have shown that indomethacinadministered at the time of a positive urinary LH can delayfollicular rupture. The mechanism of action is probably inhibition of the ‘inflammation’ associated withfollicular rupture. • Unlike GnRH antagonists it does not inhibit theLH surge.
Spontaneous ovulation rate before oocyteretrieval in modified natural cycle IVF with and without indomethacin Kadoch, et al.,RBM online 2008
Spontaneous ovulation rate before oocyteretrieval in modified natural cycle IVF with and without indomethacin Kadoch, et al.,RBM online 2008
Conclusion • SET is a reality in daily life of IVF centers in Turkey and a shift to milder protocols will be expected in next time. • Letrazol + Indomethasin is a not complex and cheap approach with acceptable pregnancy rate. • Especially powerful to reduce the drop out rates due to the stres during stimulation period. • The mentality should be changed from pregnancy rate per cycle to a cumulative pregnancy rate per patient per year.
Modified natural cycle IVF and mild IVF:a 10 year Swedish experience
Modified natural cycle IVF and mild IVF:a 10 year Swedish experience 40%
Mini IVF • Clomiphene citrate 50 mg, beginningon day 3 and continued untilthe follicles were developed sufficiently for ovulation triggering. • 150 IU hMG every 48 h was begun on day 5 or 8depending on the day-3 FSH concentration. • GnRHa(nasal spray, nafarelin acetate) was administered to trigger an endogenous LHsurge.