Palmar Dermatoglyphic Patterns in Bronchial Asthma between Afro-Trinidadian and Indo-Trinidadian: A Comparative Study

Abstract

Background: Dermatoglyphics, the ridged skin covering our palms and sole, are not only found on human beings. All primates have ridged skin, and it can also be found on the paws of certain mammals and on the tails of some monkey species. Palmar creases develop during the 2nd and 3rd month of intrauterine life and are not influenced by movement of hand in utero. They are of considerable clinical interest because they are affected by certain abnormalities of early development including genetic disorders. Aim: The present study is carried out to correlate the dermatoglyphic patterns in patients of bronchial asthma. Methods: Dermatoglyphic prints were obtained from both hands of 100 patients of bronchial asthma among Afro-Trinidadian and Indo-Trinidadian. Hundred normal healthy individuals, without family history of bronchial asthma, were selected as control group. The qualitative parameters like whorls, loops and arches were studied in the above mentioned study groups. Results: Presence of whorls loops and arches showed significant difference, p<0.01in III and IV digits in Afro-Trinidadian group and only in III digit in Indo-Trinidadian group when compared to the controls. The intergroup comparisons also showed significant changes in the percentage of all the finger print patterns in the II & III digit in Afro-Trinidadian bronchial asthma patient when compared with Indo-Trinidadian bronchial asthma patients.  Conclusion: Presence of whorls, loops and arches on both the III digit can be used as one of the diagnostic criterion for patients with bronchial asthma.