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[Laser Doppler: new diagnostic possibilities in gestosis]
T Volgmann1, U Fischer, J Bahr
1Klinik für Gynäkologie und Geburtshilfe, Ernst-Moritz-Arndt-Universität Greifswald.
Summary
Laser-Doppler flowmetry effectively identified microcirculatory changes in pregnant women with hypertension. This diagnostic tool revealed reduced blood flow and erythrocyte speed in hypertonic patients, indicating potential vasoconstriction.
Area of Science:
- Obstetrics and Gynecology
- Vascular Physiology
- Medical Diagnostics
Background:
- Gestosis, characterized by hypertension in pregnancy, can lead to microcirculatory alterations.
- Assessing cutaneous circulation is crucial for understanding pregnancy-related vascular changes.
- Laser-Doppler flowmetry offers a non-invasive method to evaluate microvascular function.
Purpose of the Study:
- To evaluate the efficacy of Laser-Doppler (LD) flowmetry in diagnosing microcirculatory alterations associated with gestosis.
- To compare forearm cutaneous circulation between hypertonic and normotonic pregnant women.
Main Methods:
- Utilized the MBF3D Laser-Doppler flowmeter to measure cutaneous circulation in the forearm.
- Assessed parameters including basal and maximal erythrocyte speed and concentration, and reactive hyperemia duration.
- Compared measurements in 11 hypertonic and 14 normotonic pregnant women (26-40 weeks gestation).
Main Results:
- Hypertonic pregnant women exhibited significant reductions in basal and maximal erythrocyte speed and concentration, and reactive hyperemia duration.
- Negative correlations were observed between erythrocyte speed and blood pressure, body mass, and newborn APGAR scores.
- These findings suggest cutaneous vasoconstriction accompanying hypertension in pregnancy.
Conclusions:
- Laser-Doppler flowmetry is a promising diagnostic tool for detecting microcirculatory changes in gestosis.
- The study indicates cutaneous vasoconstriction is a feature of hypertension during pregnancy.
- Further validation of LD flowmetry in this clinical context is warranted.