ISSN 2167-0404
International Journal of Medicine and Medical Sciences ISSN: 2167-0404 Vol. 3 (2), pp. 376-380, February, 2013. © International Scholars Journals
Full Length Research Paper
Serum cardiac troponin T (cTnT) in Nigerian children with sickle cell anaemia: an index of myocardial injury?
Adegoke OA,1, 2 Adegoke SA3,4 Okeniyi JAO3, 4 Smith OS2
1Department of Chemical Pathology, Obafemi Awolowo University (OAU), Ile-Ife, Nigeria.
2Department of Chemical Pathology, Obafemi Awolowo University Teaching Hospitals’ Complex (OAUTHC), Ile-Ife, Nigeria.
3Department of Paediatrics and Child Health, OAU, Ile-Ife, Nigeria.
4Department of Paediatrics, Wesley Guild Hospital Ilesa Unit, OAUTHC, Nigeria.
*Corresponding author. E-mail: [email protected]
Received 17 December, 2012; Accepted 08 February, 2013
Abstract
Recurrent vaso-occlusion in sickle cell anaemia (SCA) may be associated with myocardial ischaemia. We determined the serum cardiac Troponin T (cTnT) profile in children with SCA and assessed its relationship with the vaso-occlusive crises pain severity scores. Serum Troponin levels of 26 children with SCA who had significant painful crisis (cases) and 27 SCA in stable state (controls) were determined using microparticle enzyme immunoassay method. The severity of the pain among the cases was determined using age appropriate pain rating scales. The overall mean (Standard deviations, SD) serum cTnT for the 53 children was 65.63(23.54) ng/L with 45.3% having normal serum levels. Cases however had significantly higher mean serum cTnT than the controls, 119(24.40) vs. 57.90(13.80) ng/L, p=0.001. Also, significantly higher proportion of the cases, 19 (73.1%), than the controls, 3 (11.1%) had elevated serum cTnT levels (i.e. serum levels >100 ng/ L), p=0.001. Serum cTnT levels had strong positive correlation with the pain severity scores; Pearson’s correlation coefficient (r) =0.64, p=0.011. Routine serum cTnT estimation may be useful in evaluating for subclinical myocardial ischemic damage which may be associated with vaso-occlusive crisis in children with SCA.
Key words: Infarction, ischaemia, pain rating scale, troponin, vaso-occlusive crisis.