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Trials. 2019 Jul 9;20(1):414. doi: 10.1186/s13063-019-3486-1.

Effect of motivational interviewing in hypertensive patients (MIdNIgHT): study protocol for a randomized controlled trial.

Author information

1
Graduate Program in Health Sciences: Cardiology and Cardiovascular Sciences, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos 2400, Porto Alegre, RS, 90035-003, Brazil.
2
Cardiology Division, Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos 2350, Sala 2060, Porto Alegre, RS, 90035-903, Brazil.
3
Nursing School, Universidade Federal do Rio Grande do Sul, Rua São Manoel 963, Porto Alegre, RS, 90620-110, Brazil.
4
Graduate Program, Instituto de Cardiologia - Fundação Universitária de Cardiologia, Rua Princesa Isabel, 395, Porto Alegre, RS, 90620-001, Brazil.
5
Graduate Program in Health Sciences: Cardiology and Cardiovascular Sciences, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos 2400, Porto Alegre, RS, 90035-003, Brazil. eneidarabelo@gmail.com.
6
Nursing School, Universidade Federal do Rio Grande do Sul, Rua São Manoel 963, Porto Alegre, RS, 90620-110, Brazil. eneidarabelo@gmail.com.
7
Cardiology Division, Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos 2350, Sala 2060, Porto Alegre, RS, 90035-903, Brazil. eneidarabelo@gmail.com.

Abstract

BACKGROUND:

Only one-third of hypertensive patients achieve and maintain blood-pressure control. This is attributed to low treatment adherence and has a negative impact on clinical outcomes. Adherence is multidimensional and involves aspects both related to patient characteristics and to the chronic nature of the disease. In this context, motivational interviewing has been proposed as an approach to foster patients' motivations to change their behavior for the benefit of their own health, thus providing more lasting behavioral changes.

DESIGN AND METHODS:

Single-center, parallel, randomized controlled trial with outcome-assessor blinding. This study will select adult patients (n = 120) diagnosed with hypertension who receive regular follow-up in a specialized outpatient clinic. Patients will be randomly allocated across two groups: the intervention group will have appointments focused on motivational interviewing, while the control group will have traditional appointments. Patients will be monitored face-to-face, once monthly for six months. The primary outcomes will be a reduction of at least 8 mmHg in systolic blood pressure and changes in mean blood pressure measured by 24-h ambulatory blood pressure monitoring. Secondary outcomes include improvement of adherence to a low-sodium diet, adherence to self-care behaviors, regular use of antihypertensive medications, increase or maintenance of physical activity, weight reduction, evaluation of changes in daytime sleepiness, and cessation of smoking.

DISCUSSION:

This study shows an intervention strategy that will be tested and, if effective, warrant replication in monitoring of other chronic diseases.

TRIAL REGISTRATION:

ClinicalTrials.gov, NCT02892929 . Registered on 24 August 2016.

KEYWORDS:

Hypertension; Lifestyle; Motivational interviewing; Nursing; Randomized clinical trial

PMID:
31288854
DOI:
10.1186/s13063-019-3486-1
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