DISORDERS OF INTESTINAL MOTILITY IN THE VERY YOUNG INFANT

被引:0
作者
MILLA, PJ
机构
关键词
INTESTINAL MOTILITY; INFANT; DEVELOPMENT; DYSMOTILITY;
D O I
暂无
中图分类号
R72 [儿科学];
学科分类号
100202 ;
摘要
The contents of the gut are moved along its length by the coordniated contraction of the smooth muscle coats. The pattern of movement is related to the function of particular regions of the gastrointestnial tract and is produced by the motility of the bowel which is a consequence of the integrated action of intrinsic and extrinsic nerves, the smooths muscle cells and humoral agents. Motility disorders result in alterations of motor activity which are clinically significant and interfere with normal propulsive function. The disorders may affect particular regions of the gut or be diffuse and result from disturbances of different levels of control: end organs, intermediate regulatory pathways and higher centres, with either smooth muscle, nerves or endocrine cells being involved. In the young infant such disorders are most usually due to either the state of development of the gut or as the result of developmental dysplasias and result in a number of relatively common disorders such as gastro-oesophageal reflux and Hirschsprung disease as well as uncommon conditions which include diffuse visceral neuropathies and myopathies. The very premature infant exhibits disordered motor activity due to the gestationally dependent state of development of the enteric nervous system and smooth muscle coates and the degree to which the infant has been fed. At the present time the developmental steps involved and their disturbance resulting in pathology of the motor apparatus are unknown.
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页码:S4 / S12
页数:9
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