Related Experiment Video
Updated: Jul 15, 2026

Transcutaneous Microcirculatory Imaging in Preterm Neonates
Published on: December 31, 2015
[Hypotension in the very preterm infant]
1Service Universitaire de Néonatologie, Université de Liège, CHR Citadelle, Liège, Belgique.
Insights
Circulatory maladaptation affects one in four very preterm infants, increasing risks for complications. Blood pressure assessment must consider norms, but therapies lack data on mortality and neurodevelopmental outcomes.
Area of Science:
- Neonatal physiology
- Perinatal medicine
- Pediatric cardiology
Context:
- Circulatory maladaptation is common in very preterm infants (1 in 4).
- This condition elevates risks for immediate complications and long-term issues.
- Blood pressure monitoring requires age and weight-adjusted standards.
Purpose:
- To highlight the significance of circulatory maladaptation in very preterm neonates.
- To emphasize the need for appropriate blood pressure assessment standards.
- To review current understanding of therapies for low systemic blood flow.
Summary:
- Blood pressure is a key indicator but not the sole measure of circulatory adaptation.
- Therapies targeting low systemic blood flow are understood regarding organ and cerebral effects.
- Existing therapies have not been evaluated for their impact on mortality or neurodevelopmental outcomes.
Impact:
- Informs clinical practice regarding neonatal circulatory assessment.
- Identifies gaps in knowledge regarding therapeutic outcomes.
- Guides future research priorities for preterm infant care and long-term health.
Abstract:
One out of four very preterm infants will present with circulatory maladaptation during the first two days of life, with an increased risk of early complications and long term sequelae. Appreciation of those transitional difficulties cannot be limited to blood pressure. Assesment of blood pressure itself must be done in relation with gestational age and birth weight adapted norms. The effects of therapies for low systemic blood flow on blood pressure, organs and cerebral circulations are better understood, but none of them has assessed for mortality or neurodevelopmental outcomes.
Related Concept Videos
Alterations in Blood Pressure
Hypertension (High blood pressure)
Hypertension occurs when blood pressure readings consistently exceed the normal range. It is diagnosed when systolic blood pressure (the top number, indicating pressure while the heart beats)...
Pharmacokinetics in Pediatric Patients: Drug Distribution
Measurement of Blood Pressure
Blood Pressure Imbalances and Circulatory Shock
Blood Pressure: Hypertension and Hypotension
Normal blood pressure is 120/80 mm Hg. Elevated blood pressure is 120-129/under 80 mm Hg. Hypertension, warranting treatment at 130/80 mm Hg, is often asymptomatic and can lead to severe cardiovascular events, aneurysms, peripheral arterial disease, chronic renal disease, or cardiac...
Drug Dosing: Infants and Children
Special considerations while measuring blood pressure
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.

