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P79Maternal ophthalmic artery Doppler velocimetry in type 1 diabetes during pregnancy
Author(s) -
Kanenishi K.,
Yamashiro C.,
Tanaka H.,
Kuno A.,
Yanagihara T.,
Hata T.
Publication year - 2000
Publication title -
ultrasound in obstetrics and gynecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.202
H-Index - 141
eISSN - 1469-0705
pISSN - 0960-7692
DOI - 10.1046/j.1469-0705.2000.00004-1-78.x
Subject(s) - medicine , ophthalmic artery , hyperaemia , blood pressure , diabetes mellitus , type 2 diabetes , cardiology , gestation , pregnancy , type 1 diabetes , heart rate , blood flow , obstetrics , endocrinology , biology , genetics
Background Our purpose was to evaluate whether maternal ophthalmic artery pulsatility index (PI) in normotensive pregnancies with type 1 diabetes is different from that in normal normotensive pregnancies. Method The ophthalmic artery in 15 normal normotensive pregnant women, and 13 normotensive pregnant women with type 1 diabetes was studied once with colour Doppler flow imaging and pulsed Doppler ultrasonography after 16 weeks gestation. The heart rate, mean arterial blood pressure, and ophthalmic artery PI were calculated in each group. Results The PI (1.94 ± 0.45) in normotensive pregnant women with type 1 diabetes was significantly lower than that (2.73 ± 0.32) in normal normotensive pregnant women ( P < 0.0001). There was no significant difference in maternal heart rate or mean arterial blood pressure between the two groups. Conclusion These results suggest that vascular resistance in the maternal orbital circulation is reduced in pregnancies with type 1 diabetes that are normotensive. The lower PI in pregnant women with type 1 diabetes should be interpreted as orbital vascular vasodilatation, indicating orbital hyperperfusion or hyperaemia.