Maturation Modulates Pharyngeal-Stimulus Provoked Pharyngeal and Respiratory Rhythms in Human Infants.
Maturation Modulates Pharyngeal-Stimulus Provoked Pharyngeal and Respiratory Rhythms in Human Infants.
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DOI:
10.1007/s00455-017-9833-z
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发表时间:
2018-03
期刊:
影响因子:
2.6
通讯作者:
Jadcherla SR
中科院分区:
文献类型:
--
作者:
Hasenstab KA;Sitaram S;Lang IM;Shaker R;Jadcherla SR
Pharyngeal-provocation induced aerodigestive symptoms in infants remain an enigma. Sources of pharyngeal provocation can be anterograde as with feeding, and retrograde as in gastroesophageal reflux. We determined maturational and dose-response effects of targeted pharyngeal-stimulus on frequency, stability, and magnitude of pharyngeal and respiratory waveforms during multiple pharyngeal swallowing responses in preterm-born infants when they were of full-term postmenstrual age (PMA). Eighteen infants (11 male) were studied longitudinally at 39.8 ± 4.8 wks PMA (time-1) and 44.1 ± 5.8 wks PMA (time-2). Infants underwent concurrent pharyngo-esophageal manometry, respiratory inductance plethysmography, and nasal airflow thermistor methods to test sensory-motor interactions between the pharynx, esophagus, and airway. Linear mixed models were used and data presented as mean ± SEM or %. Overall, responses to 250 stimuli were analyzed. Of the multiple pharyngeal swallowing responses (n=160), with maturation: a) deglutition apnea duration decreases (p<0.01), b) number of pharyngeal waveform peaks and duration decreases for initial responses (p<0.01), and subsequent responses have lesser variation and greater stability (p<0.01). With increment in stimulus volumes we noted: a) increased prevalence (%) of pharyngeal responses (p<0.05), b) increased number of pharyngeal peaks (p<0.05), yet pharyngeal frequency (Hz), variability, and stability remain unaffected (p>0.05), and c) respiratory changes were unaffected (p>0.05). Initial and subsequent pharyngeal responses and respiratory rhythm interactions become more distinct with maturation. Interval oromotor experiences and volume-dependent increase in adaptive responses may be contributory. These mechanisms may be important in modulating and restoring respiratory rhythm normalcy.
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影响因子:
5.1
作者:
Jadcherla, Sudarshan Rao;Gupta, Alankar;Shaker, Reza
通讯作者:
Shaker, Reza
影响因子:
--
作者:
DALMAZO, Juciléia;APRILE, Lilian Rose Otoboni;DANTAS, Roberto Oliveira
通讯作者:
DANTAS, Roberto Oliveira
影响因子:
5.9
作者:
Jadcherla, SR
通讯作者:
Jadcherla, SR
DOI:
10.1016/j.jnn.2007.12.005
发表时间:
2008-02-01
期刊:
Journal of neonatal nursing : JNN
影响因子:
--
作者:
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通讯作者:
Lee, Jaehoon
影响因子:
24.5
作者:
Dua, K;Bardan, E;Shaker, R
通讯作者:
Shaker, R