Yazar "Kutlu, Tayfun" seçeneğine göre listele

Listeleniyor 1 - 1 / 1
  • Küçük Resim Yok
    Öğe
    EFFECTS OF LASER ZONA THINNING ON PREGNANCY RATES IN PATIENTS WITH IMPLANTATION FAILURE
    (Maltepe University, 2014) Aktaş, Ranan Gülhan; Altunkaynak, Muhammed Emin; Tunalı, Gülden; Arat, Naciye; Sofuoğlu, Kenan; Çöğendez, Ebru; Kutlu, Tayfun
    The effectiveness of assisted hatching to improve embryo transfer outcome remains controversial. The current study analyses the impact of zona thinning by laser on pregnancy rates after a failed, fresh, nondonor cycle. The study presents the comparative results of two consecutive treatments of the same patients, which were treated under same conditions in same clinic. Materials and Methods: Pregnancy results of 188 couples 376 cycles were examined. These patients met one of the following criteria: 1st group: ?35 years of age, 2nd group: Thick zona pellucida of the embryo, 3rd group: More than one IVF-embryo transfer attempts with no clear reason. Embryos of these patients did not have laser treatment during their first trial, while the zona of the embryos of the same patients were thinned by laser during their second try. All laboratory conditions, mediums as well as clinicians and embryologists were the same for the subsequ ent therapies. The pregnancy rates of each attempt were statistically examined according to the day of the transfer. Results: Clinical pregnancy rates increased significantly after hatching both on 2nd and 3rd day transfers on the group with advanced age. The rates were obviously higher after 3rd day transfers on the patients who had embryos with thick zona as well as at the patients who had several attempts before with no clarified reason. Conclusions: Statistical results show that zona thinning causes improved pregnancy rates in subsequent cycles. Laser treatment of embryos should definitely be considered for the patients with at least one prior implantation failure.