Biomaterial Database

Electrophysiological studies in preterm and growth retarded low birth weight babies. 1993

B D Bhatia, and U Prakash

Department of Paediatrics, Banaras Hindu University, Varanasi, India.

Twenty-six fullterm intrauterine growth retarded (FT-IUGR) and 17 preterm appropriate for gestational age (PT-AGA) babies constituted study subjects. Offsprings were subjected to anthropometry (weight, crown-heel length and head circumference) and motor nerve conduction velocity (MNCV) as well as H-reflex latency (H-RL) at right median nerve. The PT-AGA babies had significantly lower MNCV and higher H-RL compared to FT-IUGR babies. When intrauterine growth retardation was severe (weight group 1500-1800 g) the means for MNCV and H-RL between FT-IUGR babies and PT-AGA babies of comparable weight were similar. FT-IUGR babies weighing between 1800-2100 g had significantly higher MNCV and lower H-RL compared to FT-IUGR babies weighing < 1800 g. The FT-IUGR babies where all the three anthropometric parameters were retarded (symmetrical intrauterine growth retardation) had significantly lower MNCV and higher H-RL compared to FT-IUGR babies where weight alone or in combination with crown-heel length was retarded.

UI	MeSH Term	Description	Entries
D007230	Infant, Low Birth Weight	An infant having a birth weight of 2500 gm. (5.5 lb.) or less but INFANT, VERY LOW BIRTH WEIGHT is available for infants having a birth weight of 1500 grams (3.3 lb.) or less.	Low Birth Weight,Low-Birth-Weight Infant,Birth Weight, Low,Birth Weights, Low,Infant, Low-Birth-Weight,Infants, Low-Birth-Weight,Low Birth Weight Infant,Low Birth Weights,Low-Birth-Weight Infants
D007231	Infant, Newborn	An infant during the first 28 days after birth.	Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D007234	Infant, Premature	A human infant born before 37 weeks of GESTATION.	Neonatal Prematurity,Premature Infants,Preterm Infants,Infant, Preterm,Infants, Premature,Infants, Preterm,Premature Infant,Prematurity, Neonatal,Preterm Infant
D008475	Median Nerve	A major nerve of the upper extremity. In humans, the fibers of the median nerve originate in the lower cervical and upper thoracic spinal cord (usually C6 to T1), travel via the brachial plexus, and supply sensory and motor innervation to parts of the forearm and hand.	Median Nerves,Nerve, Median,Nerves, Median
D009046	Motor Neurons	Neurons which activate MUSCLE CELLS.	Neurons, Motor,Alpha Motorneurons,Motoneurons,Motor Neurons, Alpha,Neurons, Alpha Motor,Alpha Motor Neuron,Alpha Motor Neurons,Alpha Motorneuron,Motoneuron,Motor Neuron,Motor Neuron, Alpha,Motorneuron, Alpha,Motorneurons, Alpha,Neuron, Alpha Motor,Neuron, Motor
D009186	Myelin Sheath	The lipid-rich sheath surrounding AXONS in both the CENTRAL NERVOUS SYSTEMS and PERIPHERAL NERVOUS SYSTEM. The myelin sheath is an electrical insulator and allows faster and more energetically efficient conduction of impulses. The sheath is formed by the cell membranes of glial cells (SCHWANN CELLS in the peripheral and OLIGODENDROGLIA in the central nervous system). Deterioration of the sheath in DEMYELINATING DISEASES is a serious clinical problem.	Myelin,Myelin Sheaths,Sheath, Myelin,Sheaths, Myelin
D009431	Neural Conduction	The propagation of the NERVE IMPULSE along the nerve away from the site of an excitation stimulus.	Nerve Conduction,Conduction, Nerve,Conduction, Neural,Conductions, Nerve,Conductions, Neural,Nerve Conductions,Neural Conductions
D011930	Reaction Time	The time from the onset of a stimulus until a response is observed.	Response Latency,Response Speed,Response Time,Latency, Response,Reaction Times,Response Latencies,Response Times,Speed, Response,Speeds, Response
D001724	Birth Weight	The mass or quantity of heaviness of an individual at BIRTH. It is expressed by units of pounds or kilograms.	Birthweight,Birth Weights,Birthweights,Weight, Birth,Weights, Birth
D001827	Body Height	The distance from the sole to the crown of the head with body standing on a flat surface and fully extended.	Body Heights,Height, Body,Heights, Body