Use and adherence to oral anticoagulants in a tertiary care hospital

Autor: M Pradhyumna, Atiya Rehman Faruqui, Sunil S Joshi
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Indian Journal of Vascular and Endovascular Surgery, Vol 8, Iss 5, Pp 60-65 (2021)
Druh dokumentu: article
ISSN: 0972-0820
2394-0999
DOI: 10.4103/ijves.ijves_174_20
Popis: Background: In patients at risk of thromboembolism, oral anticoagulants (OAC) are effective, but there are limited data from India on OAC use and adherence. This study in a tertiary care hospital aims to record the pattern of prescription of OAC and medication adherence over 6 months. Materials and Methods: Medications prescribed were recorded, and a follow-up at 3 and 6 months was done to record outcomes and adherence to medication. Modified Morisky medication adherence scale (MMAS-8) was used and compliance to monthly International Normalized Ratio (INR) monitoring was recorded. Results: Of the 140 patients included, mean age was 55.32 (±18.04 years), and 84 (60.0%) were males. Indications for OAC were deep vein thrombosis 64 (45.7%) and atrial fibrillation 42 (30.0%). After initial injectable anticoagulants, majority of patients were shifted to Vitamin K antagonists. Most common OAC was nicoumarol 73 (52.1%), followed by warfarin 43 (30.2%), dabigatran 12 (9.2%), and apixaban 12 (9.2%). Over 6 months, 12 patients were lost to follow-up and 16 (11.4%) deaths were recorded. Monthly INR was done by 23 patients till the 3rd month but only by five patients between 3rd and 6th month. By the 3rd month, 19 (86.3%) and between 3rd and 6th month 4 (13.7%) patients were nonadherent. At 6th month, 78 (86.6%) had a MMAS-8 score of 8 (high adherence). The presence of a caretaker in 37 (41.2%) emerged as the most important factor contributing to adherence. Conclusion: Early identification of patient-specific barriers for INR monitoring and adherence to medications should be sought in patients with thromboembolism.
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