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Clinical situations associated with difficult-to-control hypertension
Anna Oliveras1, Roland E Schmieder
1Unit of Hypertension, Nephrology Department, Hospital Universitari del Mar, Barcelona, Spain. aoliveras@hospitaldelmar.cat
Insights
Uncontrolled high blood pressure (hypertension) significantly increases cardiovascular risk. Factors like poor adherence, therapeutic inertia, and comorbidities contribute to difficult-to-treat hypertension.
Area of Science:
- Cardiology
- Epidemiology
- Internal Medicine
Background:
- Hypertension poses a significant cardiovascular and mortality risk.
- Over 50% of hypertensive patients have uncontrolled blood pressure (BP).
- Suboptimal BP control is a major public health concern.
Purpose of the Study:
- To review the epidemiology of poorly controlled hypertension.
- To identify conditions associated with difficult-to-treat hypertension.
- To explain the multifactorial reasons behind uncontrolled BP.
Main Methods:
- Literature review of epidemiological surveys on hypertension control.
- Analysis of patient-related factors (e.g., adherence).
- Examination of physician-related factors (e.g., therapeutic inertia).
- Assessment of drug efficacy and adverse effects.
- Investigation of comorbidities and specific hypertension types (e.g., resistant hypertension).
Main Results:
- Numerous factors contribute to uncontrolled hypertension.
- Patient adherence and physician inertia are key issues.
- Comorbidities like diabetes, obesity, CKD, and OSA complicate BP management.
- Drug-related hypertension and resistant hypertension present unique challenges.
Conclusions:
- Poorly controlled hypertension is multifactorial, involving patient, physician, and treatment-related elements.
- Comorbidities and specific hypertension types significantly impact treatment outcomes.
- Addressing these factors is crucial for improving hypertension management and reducing cardiovascular risk.
Abstract:
There is no doubt that patients with high blood pressure (BP) are at higher cardiovascular and death risk than those subjects whose BP levels are below the admitted normal threshold. However, most of the epidemiological surveys show that BP is uncontrolled in more than fifty percent of hypertensive subjects. There are several reasons that can justify this lack of hypertension control, some of them depending on the patient, such as therapeutic adherence, or some related to the doctor, due to therapeutic inertia or reluctance to increment the number and doses of antihypertensive drugs. Sometimes the efficacy or adverse effects related to the antihypertensive drugs underlie the uncontrolled hypertension. And, finally, there are some clinical conditions that are associated with difficult-to-control hypertension. Among them, comorbidities such as diabetes, obesity, obstructive sleep apnoea syndrome or chronic kidney disease, but also drug-related hypertension or resistant hypertension. In this article we review the epidemiology and the conditions which are related to poorly controlled hypertension and that can explain why hypertension may become difficult-to-treat.
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