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Obstet Gynecol. 1993 Jan;81(1):112-4.

Intrauterine device failure: relation to its location within the uterine cavity.

Author information

1
Department of Obstetrics and Gynecology, Hadassah University Hospital, Mount Scopus, Jerusalem, Israel.

Abstract

OBJECTIVE:

To investigate the possible role of position of the intrauterine device (IUD) in accidental pregnancies.

METHODS:

We examined the location of the IUD in 97 normal women 45-60 days post-insertion, and in 25 pregnant women with the device in situ.

RESULTS:

A cervically located IUD was identified in seven of 97 women (7.2%) after insertion and in 13 of 25 pregnant women (52%) with the device in situ. The odds ratio for a woman with an intracervical IUD to be pregnant compared with a woman with an IUD in the uterus was 13.93 (95% confidence limits 4.13-48.96). Sonographic follow-up of the pregnant women revealed no change in IUD location during early gestation.

CONCLUSIONS:

We suggest that cases of failed contraceptive action of the IUD may be secondary to a malpositioned device. A sonographic survey can identify displaced devices. Reinsertion of the IUD in such cases is recommended.

PMID:
8416443
[Indexed for MEDLINE]

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