title: Ultrasonographic evidence that bedrest after embryo transfer is useless.
abstract: BACKGROUND
  To demonstrate the effect of immediate ambulation after embryo transfer on the intrauterine location of the transfer content.
  
  
  METHODS
  Prospective observational randomized controlled study.
  
  
  RESULTS
  Fifty-seven patients (47.5%) had one air bubble at transfer and after 15 min change in position: group A (bedrest) 2.69 mm, group B (immediate ambulation) 2.00 mm (p = 0.511). The distance from the fundus declined by 26% in group A and 15% in group B (p = 0.229). Twenty-eight patients (23.3%) had two air bubbles at transfer and after 15 min: average change in position of the first air bubble: group A 3.07 mm, group B 1.80 mm (p = 0.282); average change in position of the second air bubble: group A 2.69 mm, group B 1.80 mm (p = 0.450). The distance from the fundus for the first air bubble declined by 2% in group A and 18% in group B (p = 0.593) and for the second air bubble by 22% in group A and 15% in group B (p = 0.711).
  
  
  CONCLUSIONS
  This study demonstrates that the transfer content is not affected by the immediate ambulation after transfer, illustrating why there is no rationale for bedrest after transfer.
authors: Department of Obstetrics, Gynecology and Reproductive Medicine, VU Medical Center, NL-1007 MB Amsterdam, The Netherlands. mj.lambers@vumc.nl
authors: Marieke J
authors: MJ
authors: Lambers
authors: Cornelis B
authors: CB
authors: Lambalk
authors: Roel
authors: R
authors: Schats
authors: Peter G A
authors: PG
authors: Hompes
mesh_terms: D000328:Adult; D000388:Air; D001510:Bed Rest; D004624:Embryo Transfer / Q000379:methods*; D004717:Endometrium / Q000033:anatomy & histology; D005260:Female; D006801:Humans; D007246:Infertility / Q000209:etiology; D008297:Male; D010062:Ovulation Induction / Q000379:methods; D011187:Posture; D011247:Pregnancy; D015203:Reproducibility of Results; D016896:Treatment Outcome; D016138:Walking