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J Reprod Med. 2003 Oct;48(10):771-4.

Association of vasa previa at delivery with a history of second-trimester placenta previa.

Author information

1
Department of Maternal-Fetal Medicine, Good Samaritan Regional Medical Center, 1111 East McDowell, Phoenix, AZ 85006, USA. jknn4az@msn.com

Abstract

OBJECTIVE:

To evaluate whether vasa previa at delivery is associated with a history of second-trimester placenta previa.

STUDY DESIGN:

Retrospective, case-control study of all vasa previa cases at Good Samaritan Regional Medical Center from January 1, 1991, to May 1, 2001. Cases were identified by ICD-9 codes and confirmed by chart review. Each case was matched in a 1:4 ratio with controls based upon normal placentation at delivery, ultrasound documentation of midtrimester placental location, maternal parity and gestational age at delivery.

RESULTS:

During the study period, 13 cases of vasa previa were identified. Nine cases (9/13, 69.2%) of vasa previa at delivery had a second-trimester placenta previa as documented by midtrimester ultrasonography, whereas 2 controls (2/52, 3.8%) had a second-trimester placenta previa (P < .000001, OR = 56.3, 95% CI = 8.9-354.1).

CONCLUSION:

There is a highly significant association between vasa previa at delivery and a history of second-trimester placenta previa.

PMID:
14619643
[Indexed for MEDLINE]

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