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Wave intensity analysis of maternal arterial stiffness: augmentation index and pulse wave velocity in pregnancies complicated by diabetes or hypertension

  • Maternal-Fetal Medicine
  • Published:
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Abstract

Purpose

The aim of our study was to compare the maternal arterial stiffness in pregnant women with diabetic disease, hypertension and those with normal pregnancies.

Methods

A cross-sectional study was performed involving 65 pregnant women with diabetic disease (DD group), 26 pregnant women with hypertension (RR group) and 448 women with normal pregnancies (control group). The augmentation index (AIx) and the pulse wave velocity (PWV) of the right carotid artery were assessed using non-invasive sonographic wave intensity analysis. Furthermore, the reliability of the measurements was evaluated in 21 healthy women.

Results

Compared with the controls, the AIx and PWV were increased in the DD group [11.0 (interquartile range, IQR 7.3, 15.2) vs. 5.7 (IQR 2.4, 9.3), P < 0.001; 5.7 (IQR 5.1, 6.4) vs. 5.2 (IQR 4.6, 6.1), P = 0.001; respectively] and the RR group [9.3 (IQR 6.6, 11.5) vs. 5.7 (IQR 2.4, 9.3), P < 0.001; 7.1 (6.3, 7.9) vs. 5.2 (IQR 4.6, 6.1), P < 0.001; respectively]. The intraclass and interclass correlation coefficients were good to excellent for the AIx (ICC: 0.91, P < 0.001 and 0.74, P < 0.002; respectively) and PWV measurements (ICC: 0.71, P < 0.004 and 0.70, P < 0.005; respectively).

Conclusion

Pregnancies complicated by diabetic disease or hypertension are associated with increased maternal arterial stiffness. The importance of wave intensity analysis needs to be verified and larger studies are needed to establish both normal and cutoff values that may be relevant for clinical decisions.

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Abbreviations

AIx:

Augmentation index

PWV:

Pulse wave velocity

WI:

Wave intensity

IQR:

Interquartile range

ICC:

Intraclass correlation coefficient

GDM:

Gestational diabetes mellitus

BMI:

Body mass index

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Acknowledgements

The authors would like to thank everyone who voluntarily dedicated their time and effort.

Funding

Aloka Inc. contributed to the project by loaning a ProSound Alpha 6 ultrasound system. Investigators received no additional profit. A contract guaranteed scientific independence for the investigating institution, especially with regard to the publication of results. Collection and analysis of data remained solely with the investigating institution. The authors have no relation to the funding cooperation beyond the conduct of this study. The terms of this arrangement have been reviewed and approved by the University of Münster in accordance with its policy on objectivity in research.

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KOM data collection, data management, data analysis, manuscript writing. UM data collection, data management, data analysis, manuscript editing. CO data collection, manuscript editing. HAK manuscript editing. MM data collection, manuscript editing. KH data collection, manuscript editing. MKF data collection, manuscript editing. JS project development, manuscript editing. WK data collection, manuscript editing. RS project development, data collection, data analysis, manuscript revision.

Corresponding author

Correspondence to Kathrin Oelmeier de Murcia.

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de Murcia, K.O., Möllmann, U., Opitz, C. et al. Wave intensity analysis of maternal arterial stiffness: augmentation index and pulse wave velocity in pregnancies complicated by diabetes or hypertension. Arch Gynecol Obstet 301, 1199–1205 (2020). https://doi.org/10.1007/s00404-020-05517-2

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  • DOI: https://doi.org/10.1007/s00404-020-05517-2

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