Evaluation of thiazide diuretic use as preferred therapy in uncomplicated essential hypertension patients

Thiazide diuretics are effective antihypertensive medications shown to reduce the risk of cardiovascular events and stroke. Despite being the preferred choice for uncomplicated essential hypertension, thiazide diuretics continue to be underutilized. Methods: Uncomplicated essential hypertension patients taking a single antihypertensive medication were evaluated upon enrollment, diagnosis after enrollment or initiation of therapy in treatment naïve patients. Clinician prescribing habits were determined for both pre-existing and newly diagnosed hypertensive patients. For the cost savings analysis, hydrochlorothiazide (HCTZ) 25mg daily was selected as the preferred conversion medication. Results: Four hundred seventy-eight patients were included. ACE inhibitors were the most prescribed at 35.4% (n=169), followed by dihydropyridine calcium channel blockers (DHP CCB) and thiazide diuretics, both at 20.3% (n=97). Only 12.9% (n=33) of patients with hypertension that were taking an antihypertensive medication upon enrollment were either continued or started on thiazide diuretic therapy. Newly diagnosed or treatment naïve patients were prescribed a thiazide diuretic 28.8% (n=64) of the time. DHP CCB accounted for 58.8% of the total medication cost per month with thiazide diuretics responsible for 0.8% of the cost. If all patients had been prescribed HCTZ 25mg daily, 95.8% of the total medication cost per month could have been saved. Conclusions: Thiazide diuretics were underutilized as preferred therapy in patients with pre-existing or newly diagnosed uncomplicated essential hypertension. While cost of therapy should not be the sole reason for medication selection, thiazide diuretics are an attractive option and should be considered as a preferred therapy in this patient population (AU)

Los diuréticos tiazídicos son medicamentos antihipertensivos que demostraron reducir el riesgo de eventos cardiovasculares e infartos. A pesar de ser la elección preferida para hipertensión arterial no complicada, los diuréticos tiazídicos continúan infrautilizados. Métodos: Se evaluó a pacientes con hipertensión esencial no complicada que tomaban un único antihipertensivo después del ingreso, diagnosticados en el ingreso, diagnostico después del inicio del tratamiento en pacientes nuevos. Se determinaron los hábitos de prescripción tanto para pacientes pre-existentes como para nuevos diagnósticos. Para el análisis de ahorros de costes, se seleccionó la hidroclorotiazida (HCTZ) 25mg como medicación de conversión preferida. Resultados: Se incluyó a 478 pacientes. Los IECA fueron los más prescritos con un 35,4% (n=169), seguidos de los bloqueantes de canales de calcio dihidropiridínicos (BCC DHP) y los diuréticos tiazídicos, ambos con un 20,3% (n=97). Sólo el 12,9% (n=33) de los hipertensos que estaban tomando antihipertensivos en el ingreso continuaban o habían iniciado con un diurético tiazídico. Se prescribió un diurético tiazídico a los nuevos diagnósticos o a los nuevos tratamientos sólo en el 28,8% (n=64) de las veces. Los BCC DHP sumaron el 58,8% del coste total por mes, siendo los diuréticos tiazídicos responsables del 0,8%. Si se hubiese prescrito HCTZ 25mg a todos los pacientes, se habría ahorrado el 95,8% del coste total de la medicación por mes. Conclusión: Los diuréticos tiazídicos estaban infrautilizados como tratamiento de elección en pacientes con hipertensión esencial no complicada de nuevo diagnóstico o pre-existentes. Auqnuei el coste no sea la única razón para las elección de la medicación, los diuréticos tiazídicos son una opción atractiva y deberían ser considerados como tratamiento de elección en este tipo de población (AU)

Evaluation of thiazide diuretic use as preferred therapy in uncomplicated essential hypertension patients.

UNLABELLED: Thiazide diuretics are effective antihypertensive medications shown to reduce the risk of cardiovascular events and stroke. Despite being the preferred choice for uncomplicated essential hypertension, thiazide diuretics continue to be underutilized. METHODS: Uncomplicated essential hypertension patients taking a single antihypertensive medication were evaluated upon enrollment, diagnosis after enrollment or initiation of therapy in treatment naïve patients. Clinician prescribing habits were determined for both pre-existing and newly diagnosed hypertensive patients. For the cost savings analysis, hydrochlorothiazide (HCTZ) 25mg daily was selected as the preferred conversion medication. RESULTS: Four hundred seventy-eight patients were included. ACE inhibitors were the most prescribed at 35.4% (n=169), followed by dihydropyridine calcium channel blockers (DHP CCB) and thiazide diuretics, both at 20.3% (n=97). Only 12.9% (n=33) of patients with hypertension that were taking an antihypertensive medication upon enrollment were either continued or started on thiazide diuretic therapy. Newly diagnosed or treatment naïve patients were prescribed a thiazide diuretic 28.8% (n=64) of the time. DHP CCB accounted for 58.8% of the total medication cost per month with thiazide diuretics responsible for 0.8% of the cost. If all patients had been prescribed HCTZ 25mg daily, 95.8% of the total medication cost per month could have been saved. CONCLUSIONS: Thiazide diuretics were underutilized as preferred therapy in patients with pre-existing or newly diagnosed uncomplicated essential hypertension. While cost of therapy should not be the sole reason for medication selection, thiazide diuretics are an attractive option and should be considered as a preferred therapy in this patient population.