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Electrocardiographic findings in Nigerian athletes with the sickle cell trait
Tochukwu F Ilodibia1, Clement O Odigwe2, Ken C Anugweje3
1Division of Cardiology, Department of Internal Medicine, University of Port Harcourt Teaching Hospital (UPTH), East-West Road, Rivers State, Nigeria.
Background:
In spite of the high prevalence of the sickle cell trait (SCT) in Nigeria, the electrocardiographic characteristics of SCT athletes remain unknown.
Objective:
To compare the electrocardiographic findings in athletes of the University of Port Harcourt based on hemoglobin genotype.
Methods:
76 athletes (41 males, 35 females) were recruited. All had normal ECGs and echocardiograms. The prevalence of SCT was 31.6%.
Results:
Mean heart rate was lower among the SCT athletes (57.3 [8.6] vs 64.6 [10.4] beats/min; p = .002; Hedges' g = 0.74). Mean T-wave axis was also higher among SCT athletes (39.1 [12.8] vs 32.3 [12.9] degrees; p = .036 Hedges' g = 0.53).
Conclusion:
SCT is associated with significant electrocardiographic changes in Nigerian athletes. The biological basis and clinical significance of these changes are presently uncertain.
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