engleski

Qualitative Dermatoglyphic Traits in Brachial Plexus Palsy

For many years it was considered that the cause of perinatal brachial plexus palsy (PBPP) is excessive lateral traction applied to the fetal head at delivery, in association with anterior shoulder dystocia, but this do not explain all cases of brachial plexus palsy. The incidence found in several family members could be suggestive for inheritance with variable expression. The aim of this study was to prove early found confirmations of genetic predisposition for PBPP. In previous study, quantitative dermatoglyphic analysis has shown some differences in digito-palmar dermatoglyphs between patients with PBPP and healthy controls and now the qualitative analysis can be used to determine hereditary of diseases. The digito-palmar dermatoglyphics from 140 subjects (70 males and 70 females) diagnosed with PBPP and 400 adult and phenotypically healthy subjects (200 males and 200 females) from the Zagreb area as a control group was analyzed. The results of Chi-square test have shown statistically significant differences for frequencies of patterns on fingers in females between the groups observed. On palms in III and IV interdigital areas in both males and females and in thenar and I interdigital area only in females statistically significant differences were found. As it was found in previous research on quantitative dermatoglyphic traits, more differences are found between females with PBPP and control group, than between males. The fact, that the main presumed cause of PBPP is obstetrical trauma, it could be associated with congenital variability in formation of brachial plexus.

qualitative dermatoglyphics; brachial plexus palsy; genetic predisposition

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