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[Epidemiology of hypertension in chronic hemodialysis]
Antonio Vukusich1, Alberto Fierro, Jorge Morales
1Unidades de Diálisis, Clínica Las Condes y Clínica Dávila, Escuela de Medicina, Universidad de Los Andes, Santiago, Chile.
Insights
Hypertension is highly prevalent in chronic hemodialysis patients, often linked to fluid overload, age, and diabetes. This condition significantly impacts cardiovascular health in this population.
Area of Science:
- Nephrology
- Cardiology
- Internal Medicine
Context:
- Hypertension is a critical cardiovascular risk factor in patients undergoing chronic hemodialysis.
- Understanding hypertension prevalence and characteristics is crucial for managing this high-risk group.
Purpose:
- To determine the prevalence and identify key characteristics of hypertension in patients on chronic hemodialysis.
- To explore factors associated with hypertension in this specific patient population.
Summary:
- A cross-sectional study involving 313 chronic hemodialysis patients in Santiago, Chile, revealed a 74% prevalence of hypertension.
- Hypertension was significantly associated with interdialytic weight gain, failure to reach dry weight, older age, and diabetes.
- A high proportion of hypertensive patients (61%) were on antihypertensive medications, compared to 27% of normotensive patients.
Impact:
- The findings highlight the significant burden of hypertension in chronic hemodialysis patients.
- Identifying associated factors like hypervolemia, age, and diabetes can guide targeted interventions to improve cardiovascular outcomes.
Background:
Hypertension is a common and important cardiovascular risk factor in patients on chronic hemodialysis.
Aim:
To report the prevalence and characteristics of hypertension among patients on chronic hemodialysis.
Patients And Methods:
Cross sectional study of 313 patients (192 male, aged 57 +/- 18 years) dialyzed in 7 representative centers in Santiago, Chile.
Results:
Patients were on hemodialysis for a mean of 68 +/- 53 months and 67 (21%) were diabetic. 230 (74%) were hypertensive and 223 of these (97%) had predialysis hypertension. A multivariate analysis showed that hypertension was associated with increased weight gain between dialysis, failure to achieve the postdialysis dry weight, increasing age and the presence of diabetes. Among hypertensive patients, 61% were receiving antihypertensive medications, compared with 27% of patients with normal blood pressure.
Conclusions:
High blood pressure is highly prevalent among patients on chronic hemodialysis and is associated to hypervolemia, age and the presence of diabetes.