Key result
Full bladder is linked to higher uterine artery Pulsatility Index compared to an emptied bladder.
Why the study?
Does a full bladder modify uterine and ovarian blood flow resistance in normoovulatory patients?
Cross-Sectional (n=39)
Does a full bladder modify uterine and ovarian blood flow resistance in normoovulatory patients?
A full bladder increases uterine artery blood flow resistance, likely by modifying pelvic anatomy or increasing sympathetic tone, which should be considered during Doppler ultrasound assessments.
Caution advised interpreting uterine artery Doppler with full bladder; leaves open effects on ovarian flow and measurement standardization.
Doppler ultrasound is a non-invasive technique for investigating artery blood flow variations. In 39 normoovulatory patients we investigated the correlation between bladder distension and uterine/ovarian blood flow resistance. The patients were scanned transabdominally or transvaginally both with full and emptied bladders. Pulsatility Index was significantly higher in patients with a full bladder than in the same group after they had emptied their bladders. The present study showed that the full bladder modifying pelvic anatomy and/or increasing sympathetic tone is responsible of a high blood flow resistance in the uterine artery.
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Battaglia et al. (1994) conducted a cross-sectional in Normoovulatory (n=39). Full bladder vs. Emptied bladder was evaluated on Pulsatility Index (blood flow resistance). A full bladder was associated with a significantly higher Pulsatility Index in the uterine artery compared to an emptied bladder in normoovulatory patients.
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