Atrial Fibrilation
Conditions
Interventions
Experimental group: 85 individuals followed at least six months at Hospital das Clínicas de Minas Gerais, therapeutic time range below sixty percent, age above or equal eighteen years, both sexes, va
Behavioural
I02.233.332
Sponsors
Universidade Federal de Minas Gerais
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Eligibility
Age
18 Years to 110 Years
Inclusion criteria
Inclusion criteria: Eighteen years of age or more, both sexes, follow up in the anticoagulation clinics for at least six months, valvular or non valvular atrial fibrilation as indication for warfarin use and time in therapeutic range below the percentage of sixty
Exclusion criteria
Exclusion criteria: Bedridden patients or limitation of locomotion that compromises the attendance to scheduled visits, blind or deaf, aphasia or other speech disorders that could hinder communication during study, dementia diagnosis reported in medical records, less than two international normalized ratio values in the study period
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| To assess the increase in the quality of oral anticoagulation, measured by Time in the Therapeutic Range (TTR) of a historical series of international normalized relation (RNI) tests, measured by the Rosendaal method. It is expected a 6 percent increase in TTR values after the intervention, when compared to the period prior to the offer. Thus, the TTR analysis will occur before intervention and at zero times (immediately after), three, six, nine and 12 months after the intervention. | — |
Secondary
| Measure | Time frame |
|---|---|
| Assess the knowledge about oral anticoagulation control. The Oral Anticoagulation Knowledge (OAK) test will be applied to assess knowledge on warfarin therapy. It has been recently validated to be used in the Brazilian population. The instrument consists of 20 questions with four possible answers and only one correct option. Each correct answer scores one point, leading to a total score ranging from 0 to 20 points. Higher scores (>75 percent) indicate better knowledge levels about warfarin therapy. hat knowledge takes time to change, this variable will be measured before and at zero times (immediately after), six, and 12 months after the intervention.;Assess the self-reported adherence to warfarin therapy.Self-reported adherence will be evaluated by reviewing patient records in the hospital computerized system. It has been deemed to be an adequate method comparable to other instruments applied to assess adherence. Non-adherence will be considered as missing warfarin doses or administration errors according to prescribed dosing regimen. We expect a decrease of 2 percent in the percentage of patients reporting an adhesion problem and who will receive the intervention. We will be measured six months before starting the intervention, immediately after intervention completion ) and at three, six, nine and twelve months after intervention. | — |
Countries
Brazil
Contacts
Public ContactJosiane;Maria Costa;Parreiras Marins
Universidade Federal de Minas Gerais;Universidade Federal de Minas Gerais
Outcome results
None listed