Assessment of myocardial performance in preterm infants less than 29 weeks gestation during the transitional period

James, Adam; Corcoran, J D; Jain, Amish; McNamara, Patrick J.; Mertens, Luc; Franklin, Orla; El-Khuffash, Afif

doi:10.1016/j.earlhumdev.2014.09.004

Cited by 62 publications

(91 citation statements)

References 28 publications

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“…Although FAC is affected by loading conditions, it is less sensitive to abnormal geometry and regional abnormalities. RV FAC measurements in term and preterm infants are highly reproducible [28,44,73] . Reference values for RV RV EDA, RV ESA, and FAC have been identified in the neonatal population for both term and preterm infants [73] .…”

Section: Rv-specific Markers Of Cardiac Performancementioning

confidence: 99%

“…In short-axis images, both circumferential and radial parameters can be calculated for all myocardial segments [42,54,55] . STEderived LV and RV strain demonstrates high clinical feasibility and reproducibility in term and preterm infants with appropriate frame rate:heart rate ratios [8,31,41,44,56] . However, STE (as compared to TDI) employs relatively lower frame rates to derive SR measurements and the assessment of SR parameters in preterm infants using STE currently has lower reproducibility [41] .…”

Section: Deformation Imagingmentioning

confidence: 99%

“…This is an absolute measurement of the distance travelled by the annulus during systole and is not indexed to the length of the right ventricle. It has been validated as an accurate measure of RV function in adult and pediatric patients [69,70] with further research on term and preterm infants demonstrating its acceptable reliability [28,44,68] . The impact of lower gestation and postnatal age reveals a reduction in annular displacement which is consistent with other modalities [30] .…”

Section: Rv-specific Markers Of Cardiac Performancementioning

confidence: 99%

“…Basal longitudinal cDTI measurements of strain and SR in the RV and septum provide better reproducibility than LV measurement in preterm infants. This may relate to the angle of insonation of the LV free wall or due to the left lung often obstructing a clear view of the LV free wall base [44] .…”

Section: Deformation Imagingmentioning

confidence: 99%

“…There is an expanding body of literature on strain and SR in term and preterm infants using both cDTI and STE techniques [8,31,44,49,[56][57][58] . Current research is evaluating the ability of ε and SR to characterize the physiological and pathological changes in diseases such hypoxic ischaemic encephalopathy, pulmonary hypertension, li- gation of a patent ductus arteriosus, and chronic lung disease.…”

Section: Deformation Imagingmentioning

confidence: 99%

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Novel Echocardiography Methods in the Functional Assessment of the Newborn Heart

et al. 2016

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Echocardiography in the neonatal intensive care unit has led to improvements in our ability to assess the neonatal heart in health and disease. Advances in neonatal cardiac imaging have provided the capability to obtain quantitative information that often supersedes the qualitative information provided by conventional methods. Novel quantitative measures of function include the assessment of the velocity of muscle tissue movement during systole and diastole using tissue Doppler velocity imaging, and evaluation of deformation and rotational characteristics of the myocardium utilizing speckle tracking echocardiography or tissue Doppler-derived strain imaging. A comprehensive understanding of these novel functional modalities, their predictive value, and limitations can greatly assist in managing both the normal and maladaptive responses in the newborn period. This article discusses the novel and emerging methods for assessment of left and right heart function in the neonatal population.

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