Hypertension

Relationship Between Urinary Uranium and Cardiac Geometry and Left Ventricular Function: The Strong Heart Study

JACC AdvPublished Prospective cohort study

Authors' conclusion

Urinary uranium levels were adversely associated with measures of cardiac geometry and LV function among American Indian adults, including increases in pulse pressure and LV hypertrophy.

Study context

Population
American Indian young adults (<50 years, free of DM and CVD) from the Strong Heart Family Study
Participants
1,332 adults
Exposure
Urinary uranium and cardiac geometry and function
Outcome
Echocardiographic cardiac geometry and function measures and BP
Follow-up
Baseline (2001-2003) and (2006-2009)
Methodological detailslinear mixed-effect models
  • Linear mixed-effect models

Main finding

As reported in the abstract

Median (IQR) urinary uranium
0.029 (0.045) μg/g creatinine
Left ventricular (LV) mass index at baseline, mean difference
0.49 g/m² (0.07-0.92 g/m²) (95% CI)
Left atrial systolic diameter at baseline
0.01 cm/m² (0.01-0.02 cm/m²) (95% CI)
Stroke volume at baseline
0.66 mL (0.25-1.08 mL) (95% CI)
Prospective increase in left atrial diameter
0.01 cm/m² (0.01-0.02 cm/m²) (95% CI)
Prospective increase in pulse pressure
0.28 mm Hg (0.05-0.52 mm Hg) (95% CI)
Incident LV hypertrophy, OR
1.25 (1.06, 1.48) (95% CI)

Observational data: associations, not effects.

Original publication

Relationship Between Urinary Uranium and Cardiac Geometry and Left Ventricular Function: The Strong Heart Study. JACC Adv. Published 19 November 2024. doi:10.1016/j.jacadv.2024.101408

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