Can the ‘coronary dominance’ be predicted by dominent handedness or by the finger dermatoglyphic pattern? – A cross sectional study

Rationale: Coronary dominance is one of the major prognostic factor for the coronary vascular diseases. This study was to explore whether such can be presumed by non-invasive low cost tests like assessing the handedness of an individual and his/her finger dermatoglyphics pattern. Method: 100 patients awaiting/ undergoing for coronary angiography were included in this work. From live CAG time, the dominance pattern was noted. Using Edinburg Handedness Inventory, the handedness pattern of that patient were also assessed. And from the same patient the fingerprints were collected. Result: 100 indoor patients were studied. Majority of them was found to have right dominance pattern in coronary artery. Rest of them were of left & mixed-dominance. During handed-ness assessment, none was left handed. The study reveals in right handed persons there is more chance of right dominance. Proportionately the prevalence of left dominance and co-dominance was observed more with the mixed-handed persons. It was observed that whorl and loop are the prevalent types of fingerprint in the subjects, but irrespective of the finger-print type, the right coronary dominance prevailed throughout. Conclusion: All the three parameters, studied here- the handedness, coronary dominance and finger print pattern- are somehow genetically fixed since birth and there are less possibility of change. So, this study was an attempt to find their correlation if any, which could be used as preventive mode for coronary risks. But, somehow for the lack of left-handed subjects, the result was not at per expected. So this study may be prolonged for further longer period even in multi-centric sites in near future.