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. 2022 Jun 16;14(6):e26008.
doi: 10.7759/cureus.26008. eCollection 2022 Jun.

Frequency of Specific and Non-specific Inhibitors in Haemophilia A Patients

Javeria Ashfaq  1 , Faryal Tariq  1 , Rehana Ahmed  2 , Warkha Thakur  2 , Madiha Abid  2 , Munira Borhany  2
Affiliations

Frequency of Specific and Non-specific Inhibitors in Haemophilia A Patients

Javeria Ashfaq et al. Cureus. .

Abstract

Objective: To determine the frequency of specific and non-specific inhibitors in haemophilia A patients.

Study design: This is a cross-sectional study.

Patients and methods: A total of 150 male haemophilia A patients were included in this cross-sectional study at the National Institute of Blood Diseases and Bone Marrow Transplant (NIBD), Karachi, Pakistan, from September 2019 to January 2022.

Results: Among 150 patients included in this study, 23 (15.3%) had an inhibitor and 127 (84.6%) did not. All patients had specific inhibitors against Factor VIII (FVIII). Non-specific inhibitors were not identified in our population. Among the patients in the inhibitor group, there were 13 (56.5%) in the severe (<1%) category. There were 10 (43.5%) patients in the moderate (1-5%) category. There were no patients in the mild category. The median inhibitor level was 15.4 Bethesda unit (BU).

Conclusion: The development of inhibitors has not been identified as a major problem in our population. However, it is noteworthy that only 15.3% of patients with haemophilia A developed inhibitors in this data set. They were essentially treated with plasma and its products.

Keywords: factor viii inhibitors; factor viii; fviii; non specific inhibitors; plasma; s: haemophilia complications.

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Conflict of interest statement

The authors have declared that no competing interests exist.

Figures

Figure 1
Figure 1. Frequency of bleeding in haemophilia A patients in the study
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