ArticleAfrican journal of primary health care & family medicine2016
Profile and anticoagulation outcomes of patients on warfarin therapy in an urban hospital in Cape Town, South Africa.
Article in African journal of primary health care & family medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 4 of them syntheses that pooled it.
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Who cites it
19 citing papers in PubMed, 4 syntheses or guidelines pooled it, 46 citations in OpenAlex.
- Warfarin-Associated Bleeding and Thromboembolic Events in Sub-Saharan Africa: A Systematic Review and Meta-Analysis.Pharmacoepidemiology and drug safety · 2025Pooled it
- Anticoagulation quality through time in therapeutic range in Sub-Saharan Africa: a systematic review and meta-analysis.Frontiers in medicine · 2025Pooled it
- Magnitudes of Risk Factors of Venous Thromboembolism and Quality of Anticoagulant Therapy in Ethiopia: A Systematic Review.Vascular health and risk management · 2022Pooled it
- A Systematic Review of the Spectrum of Cardiac Arrhythmias in Sub-Saharan Africa.Global heart · 2020Pooled it
- Pooled estimate of anticoagulation control with warfarin therapy among adult patients in Ethiopia: a systematic review and meta-analysis.Thrombosis journal · 2026Review
- Comparison of anticoagulation control and outcomes between usual medical care and pharmacist-led anticoagulation service in ambulatory patients taking warfarin at tertiary hospital in Ethiopia: a quasi-experimental study.Journal of pharmaceutical health care and sciences · 2024Article
- Anticoagulation Management in Patients Receiving Warfarin at Private Cardiac Centers in Addis Ababa, Ethiopia.Journal of blood medicine · 2023Article
- Anticoagulation control, outcomes, and associated factors in long-term-care patients receiving warfarin in Africa: a systematic review.Thrombosis journal · 2022Review
- Warfarin Pharmacogenomics for Precision Medicine in Real-Life Clinical Practice in Southern Africa: Harnessing 73 Variants in 29 Pharmacogenes.Omics : a journal of integrative biology · 2022Article
- Assessment of knowledge and practice of cardiovascular nurses regarding warfarin.Journal of education and health promotion · 2022Article
- Improving anticoagulation in sub-Saharan Africa: What are the challenges and how can we overcome them?British journal of clinical pharmacology · 2021Review
- Evaluation of Warfarin Anticoagulation at University of Gondar Comprehensive Specialized Hospital, North-West Ethiopia.Journal of blood medicine · 2021Article
- Evaluation of Anticoagulation Control among Patients Taking Warfarin in University of Gondar Hospital, Northwest Ethiopia.Advances in hematology · 2021Article
- Atrial fibrillation in low- and middle-income countries: a narrative review.European heart journal supplements : journal of the European Society of Cardiology · 2020Article
- A cross-sectional evaluation of five warfarin anticoagulation services in Uganda and South Africa.PloS one · 2020Article
- Impact of incorporating ABCB1 and CYP4F2 polymorphisms in a pharmacogenetics-guided warfarin dosing algorithm for the Brazilian population.European journal of clinical pharmacology · 2018Article
- Anticoagulation Control, Outcomes, and Associated Factors in Patients with Atrial Fibrillation Receiving Warfarin at Tertiary Care Hospital in Ethiopia.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/HemostasisArticle
- PASCAR and WHF Cardiovascular Diseases Scorecard project.Cardiovascular journal of AfricaArticle
- A preliminary review of warfarin toxicity in a tertiary hospital in Cape Town, South Africa.Cardiovascular journal of AfricaArticle
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundWarfarin is the most frequently used oral anticoagulant worldwide and it is the oral anticoagulant of choice in South Africa for reducing thrombosis-related morbidity and mortality. However, the safety and efficacy of warfarin therapy depends mainly on careful monitoring and maintenance of the international normalised ratio (INR) within an optimal therapeutic range.
aimThe aim of this study was to describe the profile and the anticoagulation outcomes of patients on warfarin therapy in a major warfarin clinic in the Western Cape Province of South Africa.
settingVictoria Hospital - a district hospital in Cape Town.
methodsA cross sectional review of clinical records of patients on warfarin therapy who attended the INR clinic from 01 January 2014 to 30 June 2014 was done. Data analysis was done with STATA to generate appropriate descriptive data.
resultsOur study showed that atrial fibrillation (AF) was the commonest indication for warfarin use in this study and hypertension was the commonest comorbidity among these patients. Only 48.5% achieved target therapeutic range; 51.5% were out-of-range. There was a significant association between alcohol consumption and poor anticoagulation outcomes (p-value < 0.022). Anticoagulation outcomes were better among the older age groups, male patients and in those with AF. The prevalence of thrombotic events while on warfarin treatment was 2.2%, while prevalence of haemorrhagic events was 14%. Most of the patients with bleeding events were on concurrent use of warfarin and other medications with potential drug interactions.
conclusionIn our study, patients who achieved target therapeutic control were less than the acceptable 60%.
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