Blood flow to one uterine horn of six Yorkshire sows was measured daily from d-22 to 0 (d of parturition) using an electromagnetic blood flow transducer surgically implanted around the middle uterine artery. Immediately after measurement of uterine arterial blood flow (UABF), samples of femoral arterial (FA) and uterine venous (UV) blood were collected via indwelling catheters and concentration...

Introduction: The predictive value of spiral artery flow Doppler measurements of a subsequent early miscarriage in first trimester pregnancy is explored here. Objective: The aim of this study is to determine uterine and spiral artery blood flow changes in first trimester subsequent miscarriages and correlate within the mechanisms of the Doppler indicies. Study design: The uterine artery and spi...

OBJECTIVE To relate Doppler velocimetry findings in fetoplacental and uteroplacental circulation to placental histomorphology. MATERIAL AND METHODS In 14 uncomplicated and 31 high-risk pregnancies Doppler velocimetry was performed in umbilical artery and vein, and in maternal uterine veins and arteries during the second half of gestation. Histopathology of the placentas was examined, especial...

The use of spinal anesthesia for cesarean delivery has increased with the introduction of small-gauge, noncutting spinal needles. Most women in Canada, the United States, Australia, and Europe requiring elective cesarean delivery receive some variation of a spinal anesthetic technique owing to the perceived advantages of a clear end point in locating the subarachnoid space, fast onset of local ...

BACKGROUND During fetal hypoxia blood is redistributed to the brain ('brain-sparing'). Sequential changes of the cerebral and placental circulation in parallel in comparisons between basal conditions and acute hypoxic stress have not yet been thoroughly studied in human fetuses. AIM To explore acute fetal middle cerebral artery (MCA) circulatory changes relative to umbilical artery (UA) blood...

About 3700 new cases of endometrial cancer are reported in the United Kingdom each year. The incidence of the disease increases considerably during the fifth decade of life and reaches a peak between the ages of 60 and 65. Uterine bleeding is the most common initial symptom after the menopause and necessitates invasive investigation (for example, dilatation and curettage). About a tenth ofwomen...

BACKGROUND The transient effects of epidural bupivacaine 0.25-0.5% on the Doppler velocimetry of umbilical and uterine arteries had been reported, but the effects of continuous lower dose epidural bupivacaine (0.05-0.1%) infusion for labour analgesia have never been reported. In this study, we evaluated the effects of continuous epidural bupivacaine 0.075% on the Doppler velocimetry of uterine ...