Magnitude of hemorrhagic complications and its associated factors among patients on anticoagulant therapy at University of Gondar Comprehensive and Specialized Hospital, Northwest Ethiopia

Background

Despite the well-established effectiveness of anticoagulants, the risk of their hemorrhagic complications withheld many patients from being maintained on anticoagulant therapy. However, there is no sufficient data on the magnitude and factors associated with anticoagulant-related hemorrhagic complications in resource-constrained settings. Thus this study aimed to assess the magnitude of hemorrhagic complications and associated factors related to anticoagulant therapy among patients at the University Of Gondar Comprehensive and Specialized Hospital.

Methods

A retrospective follow-up study was done on 154 individuals starting from June 2018 to June 2019 on adult patients who had completed their anticoagulant therapy at the University of Gondar specialized and comprehensive hospital. They were selected using a systematic random sampling technique among all patients who had completed their anticoagulant therapy which is heparin, warfarin, or both. A retrospective data after the initiation of anticoagulant therapy was collected. The data collection was conducted from July 1 to August 30, 2019. Bivariable and multivariable logistic regression was used to identify factors. Variables with p < 0.05 were considered statistically significant.

Results

Out of 154 patients who received anticoagulant therapy during the study period, more than half 83 (53.9%) of the participants were female, and the mean age of participants was 54.8 ± 21.1 years. A quarter of patients, 38 (24.7%), 95% CI (17.8, 31.6) who had been on anticoagulant therapy experienced bleeding complications. Being female (AOR = 6.12, 95% CI: 1.81, 20.71, P = 0.004) Aspirin use (AOR = 7.71, 95% CI: 2.24, 26.53, P = 0.001), type of anticoagulant (AOR = 4.94, 95% CI: 1.58, 15.49, P = 0.006), and number of co-morbidities(AOR = 4.99, 95% CI: 1.47, 16.95, P = 0.010) were found to be significantly associated with hemorrhagic complications.

Conclusions

Hemorrhagic complications related to anticoagulant therapy are not rare. Therefore close monitoring of coagulation profiles as well as minimization of risk factors is crucial and needs collaborated work of all health care professionals and decision-makers.