title: Biotechnological and clinical outcome of in vitro fertilization in non-obese patients with polycystic ovarian syndrome.
abstract: BACKGROUND
  Polycystic ovarian syndrome (PCOS) is a hormonal and metabolic disorder which poses problems with controlled ovarian stimulation (COH). It has been also postulated that PCOS patients have oocytes and embryos with poorer quality which affects IVF results.
  
  
  OBJECTIVE
  To verify IVF outcome in non-obese patients with PCOS.
  
  
  METHODS
  IVF results of 71 non-obese PCOS patients with 243 non-obese non-POCS patients, regardless of stimulation protocol, from years 2004-2006 were compared.
  
  
  RESULTS
  Biotechnological results of PCOS patients in opposition to non-PCOS patients were respectively as follows: higher average number (10.19 vs. 7.61; p=0.001) and percentage (82.34% vs. 76.25%; p=0.025) of retrieved mature M2 oocytes; similar (77.01% vs. 76.75%; p=0.835) fertilization rate with higher average number of embryos (7.633 vs. 5.650 p=0.003); higher average number (4.830 vs. 3.304; p=0.001) and percentage (65.66% vs. 60.57%; p=0.006) of embryos with optimal Z1 and Z2 pronuclei pattern according to Scott; higher average number of class Aembryos (3.57 vs. 2.34; p=0.001). Similar number of embryos were transferred in both groups (2.408 vs. 2.485, p=0.552). Clinical results in PCOS and non-PCOS patients were as follows: similar stimulation duration (10.53 days vs. 10.31 days; p=0.639) with significant less gonadotropin total usage (1866.54 IU vs. 2276.18 IU; p=0.001). Also clinical pregnancy per transfer (57.75% vs. 41.98%; p=0.021) and delivery per transfer (45.07% vs. 32.51%; p=0.066) were more often in PCOS patients with comparable miscarriages (12,68% vs. 6,58%; p=0.131) and ectopic pregnancy (0.00% vs. 2.06%; p=0.591) rates, respectively.
  
  
  CONCLUSIONS
  PCOS in non-obese patients is linked with good biotechnological and clinical IVF outcome.
authors.affiliation: Department of Reproductive Medicine and Gynecology, Pomeranian Medical University, Szczecin-Police, Poland. ciepiela@sci.pam.szczecin.pl
authors.forename: Przemyslaw
authors.initials: P
authors.lastname: Ciepiela
authors.forename: Tomasz
authors.initials: T
authors.lastname: Baczkowski
authors.forename: Pawel
authors.initials: P
authors.lastname: Brelik
authors.forename: Anna
authors.initials: A
authors.lastname: Antonowicz
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Safranow
authors.forename: Rafal
authors.initials: R
authors.lastname: Kurzawa
mesh_terms: D000328:Adult; D001709:Biotechnology / Q000379:methods*; D015992:Body Mass Index; D001835:Body Weight; D004624:Embryo Transfer; D005260:Female; D005307:Fertilization in Vitro / Q000379:methods / Q000706:statistics & numerical data*; D006801:Humans; D054315:Oocyte Retrieval / Q000706:statistics & numerical data; D009865:Oocytes / Q000166:cytology; D011085:Polycystic Ovary Syndrome / Q000150:complications* / Q000473:pathology / Q000628:therapy; D012189:Retrospective Studies; D020554:Sperm Injections, Intracytoplasmic / Q000706:statistics & numerical data; D016896:Treatment Outcome; D015053:Zygote / Q000145:classification / Q000166:cytology / Q000637:transplantation