Assessment of the in vivo biomechanical properties of the human uterine cervix in pregnancy using the aspiration test A feasibility study

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Bauer, Margit (author)

Assessment of the in vivo biomechanical properties of the human uterine cervix in pregnancy using the aspiration test A feasibility study

Article/chapterEnglish2009

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Elsevier BV,2009
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LIBRIS-ID:oai:DiVA.org:kth-30871
https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-30871URI
https://doi.org/10.1016/j.ejogrb.2009.02.025DOI

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Language:English
Summary in:English

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Subject category:art swepub-publicationtype

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QC 20110304
Objective: To date no diagnostic tool is yet available to objectively assess the in vivo biomechanical properties of the uterine cervix during gestation. Methods: We show the first clinical application of an aspiration device to assess the in vivo biomechanical properties of the cervix in pregnancy with the aim to describe the physiological biomechanical changes throughout gestation in order to eventually detect pregnant women at risk for cervical insufficiency (CI). Results: Out of 15 aspiration measurements, 12 produced valid results. The stiffness values were in the range between 0.013 and 0.068 bar/mm. The results showed a good reproducibility of the aspiration test. In our previous test series on non-pregnant cervices our repetitive measurements showed a standard deviation of > 20% compared to <+/- 10% to our data on pregnant cervices. Stiffness values are decreasing with gestational age which indicates a progressive softening of cervical tissue towards the end of pregnancy. Three pregnant women had two subsequent measurements within a time interval of four weeks. Decreasing stiffness values in the range of 20% were recorded. Discussion: This preliminary study on the clinical practicability of aspiration tests showed promising results in terms of reproducibility (reliability) and clinical use (feasibility). Ongoing studies will provide further insights on its usefulness in clinical practice and in the detection of substantial changes of the cervix in pregnancy indicative for threatened preterm birth or cervical insufficiency.

Subject headings and genre

TEKNIK OCH TEKNOLOGIER Medicinteknik Medicinsk laboratorie- och mätteknik hsv//swe
ENGINEERING AND TECHNOLOGY Medical Engineering Medical Laboratory and Measurements Technologies hsv//eng
Uterine cervix
Remodeling
Mechanical properties
Biomechanics
Aspiration device
In vivo
Pregnancy
Stiffness
Medical engineering
Medicinsk teknik

Added entries (persons, corporate bodies, meetings, titles ...)

Mazza, Edoardo (author)
Jabareen, Mahmood (author)
Sultan, Leila (author)
Bajka, Michael (author)
Lang, Uwe (author)
Zimmermann, Roland (author)
Holzapfel, Gerhard A.KTH,Hållfasthetslära (Avd.)(Swepub:kth)u1esp3uu (author)
KTHHållfasthetslära (Avd.) (creator_code:org_t)

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In:European Journal of Obstetrics, Gynecology, and Reproductive Biology: Elsevier BV144, s. S77-S810301-21151872-7654

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By the author/editor: Bauer, Margit; Mazza, Edoardo; Jabareen, Mahmoo ...; Sultan, Leila; Bajka, Michael; Lang, Uwe; show more...; Zimmermann, Rola ...; Holzapfel, Gerha ...; show less...

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