Ectopic pregnancy secondary to in vitro fertilisation-embryo transfer: pathogenic mechanisms and management strategies

Table 1 Risk factors for EP during IVF-ET

	Maternal	IVF-ET Technique
Definite risks	Tubal infertility	High volume of transfer media
	Pelvic inflammatory disease	Multiple embryo transfer
	History of tubal surgery
	Previous ectopic pregnancy
	Cigarette smoking
	Endometriosis
Inconclusive risks	Maternal age	Controlled ovarian stimulation
	Uterine abnormalities	Triggering oocyte maturation
		Luteal phase support
		In vitro fertilisation/maturation
		Assisted hatching
		Embryonic stage at transfer
		Fresh vs. Frozen embryo
		Transfer technique of embryo

Summary of definite and inconclusive risk factors for ectopic/heterotopic pregnancy during in vitro fertilisation and embryo transfer treatment.

ISSN: 1477-7827