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Related Concept Videos

Development of the Heart01:27

Development of the Heart

927
The development of the human heart, a crucial organ, commences from the mesoderm on the 18th or 19th day after fertilization. This process initiates in the cardiogenic area, a group of mesodermal cells at the embryo's head end, which evolves into elongated strands known as cardiogenic cords. These cords undergo a transformation to form hollow-centered endocardial tubes.
As the embryo undergoes lateral folding, these paired tubes approach each other, merging into a single primitive heart...
927

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Left Atrial Mechanics Following Preeclamptic Pregnancy.

Jamie M O'Driscoll1,2, Fergus P McCarthy3,4, Veronica Giorgione5

  • 1School of Psychology and Life Science, Canterbury Christ Church University, Kent, United Kingdom (J.M.O.D.).

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Women with preterm preeclampsia show reduced left atrial (LA) strain postpartum, indicating potential future cardiovascular disease risk. This finding highlights the importance of monitoring cardiac function after pregnancy complications.

Keywords:
cardiovascular diseasesheart disease risk factorshypertensionmorbiditypre-eclampsia

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Area of Science:

  • Cardiology
  • Obstetrics
  • Cardiovascular Disease Research

Background:

  • Preterm preeclampsia is linked to heart dysfunction and early cardiovascular disease.
  • Left atrial (LA) strain is a key indicator of heart failure risk.
  • Understanding postpartum cardiac changes in preeclampsia is crucial.

Purpose of the Study:

  • To assess left atrial (LA) strain postpartum in women with and without preterm preeclampsia.
  • To determine if LA strain differs based on postpartum hypertension or cardiac dysfunction.
  • To evaluate LA stiffness as a marker in postpartum preeclampsia.

Main Methods:

  • A longitudinal cohort study involving 321 women with preterm preeclampsia and 30 controls.
  • Cardiovascular assessment, including transthoracic echocardiogram, performed 6 months postpartum.
  • Calculation of LA myocardial strain (reservoir, conduit, contractile) and LA stiffness.

Main Results:

  • Women with prior preterm preeclampsia had significantly reduced LA reservoir, conduit, and contractile strain (P<0.001).
  • Increased LA stiffness was observed in the preterm preeclampsia group (P<0.001).
  • LA strain remained reduced even with co-existing hypertension or cardiac dysfunction (P<0.05).

Conclusions:

  • Left atrial mechanics are significantly impaired 6 months postpartum in women with preterm preeclampsia.
  • These impairments persist regardless of postpartum hypertension or ventricular dysfunction.
  • Postnatal LA strain assessment may help identify women at higher future cardiovascular disease risk.