Related Experiment Video
Updated: Jan 29, 2026

Evaluation of a Point-of-Care Testing Analyzer for Measuring Peripheral Blood Leukocytes
Published on: March 22, 2022
Does History of Prematurity Prompt Blood Pressure Evaluations at Primary Care Visits?
Benjamin D Kornfeld1,2, Gal Finer1,2, Laura E Banks1,2
1Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA.
Insights
Premature infants often have elevated blood pressure (BP) before age three. However, routine BP screening for these infants is lacking, despite available equipment and guidelines.
Area of Science:
- Pediatrics
- Cardiology
- Public Health
Background:
- Prematurity is a significant risk factor for developing elevated blood pressure (BP).
- Early identification of hypertension in infants born prematurely (IBP) is crucial for long-term cardiovascular health.
- Current screening practices and provider awareness of recommendations for IBP require investigation.
Purpose of the Study:
- To assess care patterns and provider awareness regarding early blood pressure (BP) screening recommendations for infants born prematurely (IBP).
- To evaluate the documentation of BP screening in medical records of IBP.
- To identify factors associated with BP screening in this high-risk population.
Main Methods:
- A mixed-methods approach combining provider interviews/surveys and retrospective medical record review.
- Interviews/surveys assessed practice- and provider-level BP screening protocols and guideline awareness.
- Infant records were analyzed for BP documentation, demographics, gestational age (GA), and comorbidities.
Main Results:
- Only 4% of practices had a BP measurement protocol for IBP, though 81% had equipment.
- Awareness of screening guidelines was low among providers (28% of 86), with none reporting routine assessment.
- BP was documented in only 28% of 118 IBP, with 43% showing BP ≥90th percentile.
- Kidney-related diagnoses were linked to more frequent BP screening (P = .0454).
Conclusions:
- Blood pressure is not routinely measured in infants born prematurely, despite a high prevalence of elevated BP before age three.
- Gaps exist in provider awareness and implementation of early BP screening guidelines for IBP.
- Targeted interventions are needed to improve BP monitoring and management in this vulnerable population.
Abstract:
Prematurity is a risk factor for elevated blood pressure (BP). We performed a mixed-methods study of care patterns and awareness of early BP screening recommendations for infants born prematurely (IBP) by interviewing/surveying providers on practice- and provider-level BP screening. IBP's records were reviewed for BP screening documentation, demographics, and gestational age (GA). Visits <33 months were reviewed for anthropometrics, BP, and comorbidities. Chi-square analysis evaluated BP screening by GA and comorbidities. Twenty-six of 49 practices completed interviews; 81% had infant BP equipment available; 4% had BP measurement protocol for IBP. Twenty-eight of 86 providers were aware of screening guidelines; none reported routine assessment. Twenty-eight of 118 IBP had ≥1 BP documented; 43% had BP ≥90th percentile. Screening did not differ by GA group. Kidney-related diagnosis was associated with more frequent BP screening (P = .0454). BP is not routinely measured though often elevated before age 3 in IBP.
Related Concept Videos
What is Evolutionary History?
Blood Pressure
Blood Pressure
The average BP in an adult is typically around 120/80 mmHg (millimeters of mercury). In this measurement, the numerator (120) indicates the systolic pressure, which is the pressure in the arteries during the contraction of the heart's ventricles as blood is expelled. The denominator (80) represents the...
Measurement of Blood Pressure
Factors affecting Blood pressure
Physiological Factors:
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...

