en POLSKI
eISSN: 2449-6731
ISSN: 2449-6723
Prenatal Cardiology
Current issue Archive About the journal Editorial board Abstracting and indexing Contact Instructions for authors Ethical standards and procedures
Editorial System
Submit your Manuscript
1/2016
 
Share:
Share:
abstract:
Original paper

Fetal myocardial index during labor

Alexis C. Gimovsky
1
,
Brianne Whitney
2
,
Dennis Wood
3
,
Stuart Weiner
3

  1. Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, George Washington University School of Medicine and Health Sciences, Washington, DC 20036, USA
  2. Department of Obstetrics and Gynecology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, 19107, USA
  3. Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, Thomas Jefferson University, Philadelphia, PA, 19107, USA
Prenat Cardio 2016 Jan; 6(1):50-55
Online publish date: 2019/07/19
View full text Get citation
 
Background
The Myocardial Performance Index (MPI) is a Doppler derived myocardial function tool and can be used to evaluate systolic and diastolic function in fetuses. The objectives of this study were to investigate the MPI during labor and compare it to values in non-laboring women.

Methodology
40 women with uncomplicated, term, singleton pregnancies were recruited to this prospective observational study at Thomas Jefferson University Hospital. Controls were a retrospective cohort of women > 34 weeks who underwent third trimester fetal echocardiography. Fetal left and right sided isovolumic contraction time, isovolumic relaxation time and ejection time were recorded before, during and after contractions. Right and left sided MPI was then calculated.

Results
Laboring patients and non-laboring patients were comparable for age, race, gravidity and parity. During labor the average left MPI was 0.63 ± 0.17 and the average right MPI was 0.62 ± 0.20. The coefficient of correlation between MPI and cervical dilation was 0.15 for left MPI Index and 0.14 for right MPI. When comparing non-laboring to laboring women, the average left MPI for non-laboring women was 0.34 ± 0.04, p = <0.001.

Conclusions
Myocardial Performance Index is a non-invasive, easily attainable measure of cardiac function that can be obtained during labor and does not change with cervical dilation. MPI is significantly different between laboring and non-laboring women. The fetal MPI may help define fetal status in labor.

keywords:

Myocardial Performance Index, Tei Index, fetal echocardiography, labor, ultrasound

Quick links
© 2024 Termedia Sp. z o.o.
Developed by Bentus.