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The Birmingham Maternity Hospital, Queen Elizabeth Medical Centre, Edgbaston, Birmingham B15 2TG, UK
Correspondence: * Author for correspondence.
The common femoral veins of 34 apparently normal women were examined by ultrasound during or just after pregnancy. The cross sectional areas of these veins were measured at rest in the supine position and during a Valsalva manoeuvre. The veins were also assessed by pulsed Doppler ultrasound. We believe that Doppler examination is superior to calibre response assessment during the Valsalva manoeuvre in excluding an isolated iliac occlusion in women in late pregnancy and in early puerperium.
Key Words: Thrombosis Ultrasound Doppler Pregnancy
Received for publication November 1, 1990.
Revision received March 1, 1991.
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