Abstract

Five hundred and forty four cases of cerebral palsy were studied to find the etiology. Male to female ratio was 1.9:1. Prenatal, natal and postnatal factors were found in 42 (7.72\%), 238 (43.75\%) and 142 (26.1\%) cases respectively. Only 79 (14.52\%) cases were found to have more than one factor which could have contributed to brain damage. In 43 (7.9\%) cases the prenatal, natal and postnatal history were normal and the cause was not known. Toxemia (1.29\%) cases and microcephaly (1.84\%) cases were the most common etiological factors in the prenatal category. Among the natal causes, birth anoxia was the most common etiological factor and was observed in 24.45\% cases. Infections of the central nervous system comprised the major etiopathogenetic factors of the postnatal causes--11.95\% cases had encephalitis, while 5.15\% cases had meningitis. In cases where more than one etiology was present, the most frequent causes were a combination of prematurity or birth anoxia in association with toxemia, antepartum hemorrhage, prolonged labour, twins, forceps or caesarean delivery. Anoxia was consistently the most common etiological factor in those cases of monoplegia paraplegia, quadriplegia, diplegia, and ataxia, i.e. in 0.55\%, 1.29\%, 11.76\%, 6.07\% and 0.55\% cases respectively. The present study reveals that majority of the cases were found to have natal or post natal etiology.

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