Fingerprints reveal clues about congenital heart defects!

Felicity Martin wrote:...
Usually the ridge count of the five fingers of the right hands is higher than the ridge count of the five fingers of the right hand (and this asymmetry difference is often quite large in especially in the thumb).
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Felicity Martin wrote:... There are other interesting features as well- I had thought asymmetry of the actual finger prints was better than say all arches or loops, wasn't that an indicator of an increase in adaptogenic disorders?

Felicity Martin wrote:Martijn

I also see that in the man's hand there seems to be an absence of a triradii under the middle and a very distinct highly angled loop under the ring finger, any comments?

Felicity

Yes, I understand your point... no asymmetry at all on the fingers of both hands (monomorphic hands) is in general an unspecified risk factor. However, too much asymmetry is a likewise unspecified risk factor.


Let me explain...

In the following study the 10 fingerprint patterns of 52 people who have a congenital heart defect are shared (+ a control group of 100 people):
http://www.ajronline.org/cgi/reprint/116/3/539.pdf

In the heart defect group 3 person have asymmetric patterns on 4 out of 5 fingers (=5.6%), while in the control group there is only one person who hase the same characteristic (=1%).

So, this confirms the significance of my point.

Though in the male-case that I presented we observe the asymmetry on only 3 out of 5 fingers (in the study 7 out of 52 persons have this in the congenital heart defect group, and 11 persons have this in the control group).

... I guess, after seeing these results, asymmetry on 3 out 5 finger can not be described as a significant clue for 'congenital heart defects', but asymmetry in 4 out of 5 fingers can!

(Though, maybe, ... combined with other factors asymmetry on 3 fingers could have value as well; but for the time being I will no longer mentioned it; only asymmetry on 4 or 5 finger can so far be described as significant factor)


Now, regarding your point: 10 arches, 10 loops or 10 whorls:

The study shows that 3 out of 52 persons with a congenital heart defect have this (=5.7%)... but the percentage is even higher in the control group: 6 out of 100 have it (=6%).

Though... a very high percentage of the congenital heart defect group has 5 'monomorphic' fingerprints in one hand: 16 out 52 persons = 30.7% (17% in the control group).

Interestingly, 2 out of the congenital heart defect group have a 'monomorphic' hand combined with R-L asymmetry on 2 out of 5 finger (=3.8%); while in the control group only one person has this characteristic.


CONCLUSION: Complex stuff, but regarding 'fingerprint pattern types'... asymmetry on 4 fingers is in this sample probably the most significant factor.

By the way, the female case that I presented also has fingerprint asymmetries in 3 out of 5 fingers.


PS. One more observation:

Two out of the 52 congenital heart defect cases (=3.8%) have a radial loop on the ringer finger, combined with an arch on the index finger of the same hand + asymmetry on the ring finger + at least one asymmetry on one of the 4 other fingers. And there is also one case who has a radial loop on the middle finger and not on other fingers (+ a 'monomorphic' other hand).

In the control group only one person has a radial loop on the ring finger, combined with a radial loop on the index finger in the same hand (both fingers are asymmetric compared to the other hand).

The radial loop on the ring finger is also a relatively common marker in Down syndrome, not sure if it is more common among those cases who have congenital heart defects.


PPS. Regarding the male case that I presented: I can observe the triradii under the middle finger, the 'angled loop under ring finger' is a relatively normal characteristic (though I can not share any statistics).

Felicity Martin wrote:...
I can see the tridadii under the first finger and between the third and forth fingers, but the one between the or under the second digit, the Saturn finger or middle finger isn't apparent to me. It must be considerably displaced, or my eyesight or cognition levels are falling. My understanding, and what I normally find are triradii under each finger, and the displacement to either side gives and indication of the dominance of the traits associated with each finger.
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