The goal of this observational study is to learn about the feasibility of hemodynamic measurement by the UltraSonic Cardiac Output Monitor (USCOM) in very preterm or very-low-birth-weight infants. The main questions it aims to answer are: 1) establishing reference ranges for USCOM parameters in this specific population, 2) assessing the effect of patients' characteristics and other possible confounders on USCOM parameters, and 3) evaluating the short-term repeatability of the measurement. Participants will receive USCOM measurements on 3, 7, and 14 postnatal days.
Age range
2 Days – 16 Days
Sex
ALL
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The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Cardiac Output at 3 days
Timeframe: 3 ± 1 days of life
Cardiac Output at 7 days
Timeframe: 7 ± 2 days of life
Cardiac Output at 14 days
Timeframe: 14 ± 2 days of life
Cardiac Index at 3 days
Timeframe: 3 ± 1 days of life
Cardiac Index at 7 days
Timeframe: 7 ± 2 days of life
Cardiac Index at 14 days
Timeframe: 14 ± 2 days of life
Systemic Vascular Resistance Index at 3 days
Timeframe: 3 ± 1 days of life
Systemic Vascular Resistance Index at 7 days
Timeframe: 7 ± 2 days of life
Systemic Vascular Resistance Index at 14 days
Timeframe: 14 ± 2 days of life