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Evaluation of serum calcium differences in hypertensive crises and control patients: A randomly matched case-control

IfeanyiChukwu O Onor1,2,3, Rose M Duchane1, Casey J Payne1

  • 1CardioRenal Research Group (CRRG), College of Pharmacy, Xavier University of Louisiana, New Orleans, LA, USA.

Journal of Clinical Hypertension (Greenwich, Conn.)
|July 22, 2021
PubMed

Insights

This study found no significant difference in serum calcium levels for patients experiencing hypertensive crises compared to matched controls. Further research is needed to explore calcium

Area of Science:

  • Cardiology
  • Nephrology
  • Endocrinology

Background:

  • Calcium's role in blood pressure is well-researched in hypertension.
  • The specific impact of calcium on hypertensive crises remains understudied.
  • Understanding this relationship is crucial for managing severe hypertension.

Purpose of the Study:

  • To investigate serum calcium level differences in patients with hypertensive crises versus matched controls.
  • To determine if calcium plays a significant role in the pathophysiology of hypertensive crises.

Main Methods:

  • A single-center, retrospective, case-control study.
  • Inclusion criteria: patients aged 18+ with documented serum calcium levels.
  • Case group: patients with hypertensive crises (n=283). Control group: patients without hypertensive crises (n=283), matched for age, sex, race, diabetes, and BMI.

Main Results:

  • No statistically significant difference in mean serum calcium levels between the hypertensive crises group (8.99 ± 0.78 mg/dL) and the control group (8.96 ± 0.75 mg/dL).
  • P-value of 0.606 indicates the observed difference is not statistically significant.
  • Serum calcium concentration does not appear to be a distinguishing factor in hypertensive crises within this cohort.

Conclusions:

  • This study did not find a significant association between serum calcium levels and hypertensive crises.
  • The findings suggest that calcium levels may not be a primary driver or indicator of hypertensive crises.
  • Larger observational or experimental studies are recommended to further elucidate calcium's role in blood pressure regulation during hypertensive crises.

Keywords:
calciumhypertension-generalhypertensive crisesmagnesiumphosphorus

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