Medida de la presión arterial en consulta y automatizada (BPTru®) para evaluar el efecto de bata blanca / Measurement of blood pressure in consultation and automated mesurement (BPTru ®) to evaluate the white coat effect

Fundamento y objetivo: El efecto de bata blanca (EBB) es uno de los principales sesgos que pueden modificar la medida de la presión arterial (PA) en consulta, por lo que se debe considerar para evitar errores diagnóstico-terapéuticos en los pacientes hipertensos. La utilización de aparatos automatizados en consulta podría disminuir dicho efecto. Método: Se diseñaron 2 estudios con el objetivo de evaluar las diferencias entre la medida rutinaria en consulta y la obtenida por el aparato automatizado de medida de PA en consulta, BPTru®, así como su influencia en el EBB. El primero de los estudios, TRUE-ESP, incluyó pacientes normotensos e hipertensos atendidos en consultas especializadas de Cardiología, Nefrología, Medicina Interna, Endocrinología y Medicina Familiar. El segundo, TRUE-HTA, incluyó pacientes hipertensos atendidos en una Unidad de HTA, protocolizada, con personal entrenado. Resultados: El estudio TRUE-ESP incluyó 300 pacientes, 76% hipertensos. Se observó una diferencia significativa entre la medida clínica y la medida BPTru® (media [DE] de PA sistólica/PA diastólica [PAS/PAD] de 9,8 [6,11]/3,4 [7,9] mmHg, p<0,001). El porcentaje de pacientes que cumplió criterios de EBB fue del 27,7%. El estudio TRUE-HTA incluyó 101 pacientes hipertensos. Se observó una diferencia significativa entre la medida clínica y la medida mediante BPTru® (media [DE] de PAS/PAD de 5,7 [3,9]/2,1 [3,5] mmHg, p<0,001) y la medida del período de actividad de la monitorización ambulatoria de la PA (MAPA) (media [DE] de PAS/PAD de 8,5 [6,7]/3,5 [2,5] mmHg, p<0,001). El porcentaje de pacientes que cumplió criterios de EBB fue del 32,1%. Conclusiones: El empleo de aparatos automatizados de medida de PA en consulta, como el BPTru®, puede colaborar a disminuir el EBB y mejorar la precisión de la medida de la PA en consulta (AU)

Background and objective: White coat effect (WCE) is one of the main bias that can affect office blood pressure (BP) measurement. Therefore, it is a factor must be considered in hypertensives to avoid mistakes in diagnosis and/or treatment. Employment of automated office BP (AOBP) devices could diminish that effect. Methods: Two studies were designed with the objective of evaluating differences between routinely office and AOBP measurements. WCE was also assessed. First, the TRUE-ESP study included normotensive and hypertensive patients attending specialized consultations at Cardiology, Nephrology, Internal Medicine, Endocrinology and Family Practice. Second, the TRUE-HTA study included hypertensives attending a protocoled Hypertension Unit, with a trained staff. Results: TRUE-ESP study included 300 patients, 76% being hypertensives. A significant difference between office BP and AOBP measurement (SBP/DBP 9.8±11.6/3.4±7.9mmHg, P<.001) was observed. Percentage of patients gathering WCE criteria was 27.7%. TRUE-HTA study included 101 hypertensive patients. A significant difference between office BP and AOBP measurement (SBP/DBP 5.7±9.3/2.1±5.3mmHg, P<.001) and activity period-ABPM (SBP/DBP 8.5±6.7/3.5±2.5mmHg, P<.001) was observed. Percentage of WCE patients was 32.1%. Conclusions: Use of AOBP devices can contribute to decrease WCE and to improve accuracy of office BP measurement (AU)

[Measurement of blood pressure in consultation and automated mesurement (BPTru(®)) to evaluate the white coat effect]. / Medida de la presión arterial en consulta y automatizada (BPTru®) para evaluar el efecto de bata blanca.

BACKGROUND AND OBJECTIVE: White coat effect (WCE) is one of the main bias that can affect office blood pressure (BP) measurement. Therefore, it is a factor must be considered in hypertensives to avoid mistakes in diagnosis and/or treatment. Employment of automated office BP (AOBP) devices could diminish that effect. METHODS: Two studies were designed with the objective of evaluating differences between routinely office and AOBP measurements. WCE was also assessed. First, the TRUE-ESP study included normotensive and hypertensive patients attending specialized consultations at Cardiology, Nephrology, Internal Medicine, Endocrinology and Family Practice. Second, the TRUE-HTA study included hypertensives attending a protocoled Hypertension Unit, with a trained staff. RESULTS: TRUE-ESP study included 300 patients, 76% being hypertensives. A significant difference between office BP and AOBP measurement (SBP/DBP 9.8±11.6/3.4±7.9 mmHg, P<.001) was observed. Percentage of patients gathering WCE criteria was 27.7%. TRUE-HTA study included 101 hypertensive patients. A significant difference between office BP and AOBP measurement (SBP/DBP 5.7±9.3/2.1±5.3 mmHg, P<.001) and activity period-ABPM (SBP/DBP 8.5±6.7/3.5±2.5 mmHg, P<.001) was observed. Percentage of WCE patients was 32.1%. CONCLUSIONS: Use of AOBP devices can contribute to decrease WCE and to improve accuracy of office BP measurement.