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[Sources of error in the diagnosis and therapy of hypertension]
P Greminger1, S Grüne, A Steiner
1Departement für Innere Medizin, Universitätsspital Zürich.
Insights
Accurate hypertension diagnosis and treatment are crucial. This review examines blood pressure measurement methods and renovascular hypertension screening, emphasizing benefits versus risks of medication.
Area of Science:
- Cardiology
- Nephrology
- Clinical Medicine
Background:
- Hypertension diagnosis and treatment involve potential errors.
- Accurate blood pressure measurement is essential for effective management.
- Screening for secondary causes like renovascular hypertension presents diagnostic challenges.
Purpose of the Study:
- To review potential errors in hypertension diagnosis and treatment.
- To compare different blood pressure measurement techniques.
- To discuss the diagnostic limitations and therapeutic considerations in hypertension management.
Main Methods:
- Comparative analysis of sphygmomanometry, automated ambulatory blood pressure recording, and self-measurement.
- Review of diagnostic accuracy for renovascular hypertension screening.
- Evaluation of the risk-benefit ratio of antihypertensive medications.
Main Results:
- No single test adequately screens for renovascular hypertension; arteriography is definitive for stenosis.
- Benefits of antihypertensive medication (reduced cardiovascular morbidity/mortality) must outweigh costs and side effects.
- Dose reduction and discontinuation of medication require careful consideration.
Conclusions:
- Optimizing hypertension diagnosis and treatment requires awareness of measurement variability and screening limitations.
- Therapeutic decisions for hypertension must balance efficacy with patient-specific risks and benefits.
- Individualized approaches to medication management are essential for long-term cardiovascular health.
Abstract:
Possible errors in the diagnosis and treatment of hypertension are discussed. The problems of blood pressure determinations are reviewed by comparing the results of sphygmomanometry in the doctor's office, of automated ambulatory blood pressure recording and of blood pressure self-measurement. In screening for renovascular hypertension one should be aware that no test is yet available which shows adequate sensitivity and specificity. Therefore, the only investigation that should be used to demonstrate a true stenosis is arteriography. When treating hypertensives it must be kept in mind that the benefits of antihypertensive medication, i.e. reducing morbidity and mortality from cardiovascular disease, should exceed the costs and side effects of the treatment. Finally, the effects of reduction in dose and discontinuation of antihypertensive medication are discussed.