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Opportunities for infrared thermometry in predicting obstetric perineal rupture

https://doi.org/10.17749/2313-7347/ob.gyn.rep.2020.134

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Abstract

Aim: to assess an opportunity of using infrared thermometry in predicting obstetric perineal tear.
Materials and Methods. There was conducted a prospective analysis of 40 childbirth cases recorded in 2019-2020. There were stratified 2 study groups: Group 1 included 30 women without perineal injuries; Group 2 - 10 women with obstetric perineal rupture. Infrared thermometry in the posterior perineal junction projection was performed during the second period of labor at two timepoints: 1 - onset of the second labor period; 2 - descent of fetal head parietal tubercles.
Results. The temperature difference between the first and second timepoints in Group 1 was 1.8 [1.71; 1.99] °C, in Group 2 - 2.7 [2.42; 2.82] °C (U = 54.000, p = 0.002). The rate of perineal temperature decline > 2.0 °C in Group 1 was 20 % (6/30), in Group 2 - 80 % (8/10) of cases (х2 = 11.868; p = 0.001). Such observation exhibited relatively high strength of relationship (V = 0.545). It is noteworthy that if perineal temperature decline at least by 2.0 °C for 2 minutes from descent of fetal head parietal tubercles to full birth of fetal head, the perineal rupture occurred in 100 % of cases (х2 = 7.556; p = 0.006), also featured with relatively high strength (V = 0.435).
Conclusion. Perineal skin temperature decline at least by 2.0 °C for 2 minutes or more from descent of fetal head parietal tubercles may potentially be used as a criterion justifying episiotomy.

About the Authors

A. M. Ziganshin
Bashkir State Medical University, Health Ministry of Russian Federation
Russian Federation
Aydar M. Ziganshin - MD, PhD, Associate Professor, Department of Obstetrics and Gynecology with the Course of Additional and Professional Education, Bashkir State Medical University.
3 Lenin Str., Ufa 450008.


V. A. Mudrov
Chita State Medical Academy, Health Ministry of Russian Federation
Russian Federation
Viktor A. Mudrov - MD, PhD, Associate Professor, Department of Obstetrics and Gynecology, Medical and Dental faculties, Chita State Medical Academy.
39a Gorkogo Str., Chita 672090.


A. Yu. Mironenko
Chita State Medical Academy, Health Ministry of Russian Federation
Russian Federation
Anastasia Yu. Mironenko - MD, Assistant, Department of Obstetrics and Gynecology, Medical and Dental Faculties, Chita State Medical Academy.
39a Gorkogo Str., Chita 672090.


V. A. Kulavskiy
Bashkir State Medical University, Health Ministry of Russian Federation
Russian Federation
Vasiliy A. Kulavskiy - MD, Dr Sci Med, Professor, Department of Obstetrics and Gynecology with the Course of Additional and Professional Education, Bashkir State Medical University.
3 Lenin Str., Ufa 450008.


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For citation:


Ziganshin A.M., Mudrov V.A., Mironenko A.Yu., Kulavskiy V.A. Opportunities for infrared thermometry in predicting obstetric perineal rupture. Obstetrics, Gynecology and Reproduction. 2020;14(5):577-586. (In Russ.) https://doi.org/10.17749/2313-7347/ob.gyn.rep.2020.134

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ISSN 2313-7347 (Print)
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