scholarly journals Middle Ear Pressure Changes Over Time in Children with Down Syndrome

2018 ◽  
Vol 4 (1) ◽  
Author(s):  
Mitchell Scott ◽  
Holmes Matthew JV ◽  
Turner Nicholas
Keyword(s):  
Down Syndrome ◽  
Middle Ear ◽  
Children With Down Syndrome ◽  
Middle Ear Pressure ◽  
Pressure Changes ◽  
Changes Over Time ◽  
Over Time

Anatomical Effects of Sudden Middle Ear Pressure Changes

1979 ◽  
Vol 88 (3) ◽  
pp. 368-376 ◽  
Author(s):  
A. Axelsson ◽  
J. Miller ◽  
M. Silverman
Keyword(s):  
Tympanic Membrane ◽  
Middle Ear ◽  
Round Window ◽  
Applied Pressure ◽  
Positive Pressure ◽  
Air Bubbles ◽  
Scala Tympani ◽  
Middle Ear Pressure ◽  
Contralateral Ear ◽  
Pressure Changes

Acute middle ear (ME) and inner ear changes following brief unilateral phasic ME pressure changes (up to ± 6000/mm H2O) were studied in the guinea pig. Middle ear findings included perforation of the tympanic membrane, serous and serosanguinous exudate and hemorrhage of tympanic membrane and periosteal vessels. Changes were related to magnitude of applied pressure. Perforation and hemorrhage were more commonly seen with negative rather than positive pressure. Air bubbles behind the round window were seen with positive pressures. Occasional distortion, but never perforation of the round window, was noted. Hemorrhage of the scala tympani was observed with both positive and negative pressures; scala vestibuli hemorrhage was found with negative ME pressure. In some instances pressure direction and magnitude related changes were seen in the contralateral ear.

Clinical study: Changes in interface pressure and stump shape over time: Preliminary results from a transtibial amputee subject

2000 ◽  
Vol 24 (2) ◽  
pp. 163-168 ◽  
Author(s):  
J. E. Sanders ◽  
J. M. Greve ◽  
C. Clinton ◽  
B. J. Hafner
Keyword(s):  
Clinical Study ◽  
Soft Tissue ◽  
Interface Pressure ◽  
Preliminary Results ◽  
Tissue Identification ◽  
Pressure Changes ◽  
Interface Pressures ◽  
Changes Over Time ◽  
Over Time ◽  
Increased Pressure

Interface stresses and stump shape were measured during sessions over a twomonth interval on a transtibial amputee subject. Results from thirteen transducer sites monitored during four sessions showed greater interface pressure changes over time at anterior sites than at lateral or posterior locations. There was a trend of decreased pressure with stump swelling and increased pressure for stump atrophy. During one session in which stump shape was monitored over a 23.1 min interval after ambulation, stump swelling was localised. Swelling tended to increase in the regions of initial enlargement, as opposed to redistributing through different areas over time. Regions of swelling were anterior lateral and posterior proximal, areas of thick underlying soft tissue. Identification of localised areas of swelling and atrophy and understanding of their effects on interface pressures could be used to improve individual socket design.

Sucking Performance of Babies with Cleft Conditions

2007 ◽  
Vol 44 (3) ◽  
pp. 312-320 ◽  
Author(s):  
Julie Reid ◽  
Sheena Reilly ◽  
Nicky Kilpatrick
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Management Strategies ◽  
Bottle Feeding ◽  
Group Differences ◽  
Feeding Management ◽  
Ability Groups ◽  
Pressure Changes ◽  
Changes Over Time ◽  
Over Time

Objective: To describe the sucking performance of bottle-fed babies with cleft conditions. Participants: Forty 2-week-old-babies with cleft lip (CL; n = 8), cleft palate (CP; n = 22), and cleft lip and palate (CLP; n = 10) were examined. Methods: Suction, compression, and other sucking parameters were measured during bottle-feeding and compared to determine if they varied with cleft condition or feeding ability. Results: All babies with CL and one with CLP demonstrated suction. Thirteen of 22 babies with CP demonstrated suction but only three maintained regular pressure changes over time. Between-group differences in the amplitude of suction and compression were associated with cleft condition. Cleft lip participants demonstrated the greatest amplitude of suction followed by those with CP and CLP. Cleft lip and CP participants generated similar amplitudes of compression. This was greater than their counterparts with CLP. Good feeders (n = 15) generated high levels of suction, while satisfactory (n = 15) and poor feeders (n = 10) did not generate any during bottle-feeding. Conclusion: Between-group differences in intra-oral pressures were confirmed when babies were examined by cleft condition. Babies with smaller clefts (i.e., CL or minor soft palate clefts) were more likely to generate normal levels of suction and compression compared to their counterparts with larger clefts. Since good feeders were more likely to have smaller clefts it was not surprising that they demonstrated higher suction pressures than babies with satisfactory or poor feeding ability. Compression values were not significantly different across the feeding ability groups. These data may inform feeding management strategies.

Surgical Treatment of Middle Ear Cholesteatoma in Children with Down Syndrome

2005 ◽  
Vol 26 (5) ◽  
pp. 1007-1010 ◽  
Author(s):  
Andrea Bacciu ◽  
Enrico Pasanisi ◽  
Vincenzo Vincenti ◽  
Davide Giordano ◽  
Antonio Caruso ◽  
...  
Keyword(s):  
Down Syndrome ◽  
Surgical Treatment ◽  
Middle Ear ◽  
Children With Down Syndrome ◽  
Middle Ear Cholesteatoma

scholarly journals Wideband acoustic immittance in children with Down syndrome: prediction of middle-ear dysfunction, conductive hearing loss and patent PE tubes

2017 ◽  
Vol 56 (9) ◽  
pp. 622-634 ◽  
Author(s):  
Lisa L. Hunter ◽  
Douglas H. Keefe ◽  
M. Patrick Feeney ◽  
David K. Brown ◽  
Jareen Meinzen-Derr ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Down Syndrome ◽  
Middle Ear ◽  
Conductive Hearing Loss ◽  
Children With Down Syndrome ◽  
Conductive Hearing

Middle Ear Pressure Changes During Anesthesia With or Without Nitrous Oxide are Similar Among Airway Devices

2006 ◽  
Vol 102 (1) ◽  
pp. 319-321 ◽  
Author(s):  
Mathias Hohlrieder ◽  
Christian Keller ◽  
Joseph Brimacombe ◽  
Stephan Eschertzhuber ◽  
G??nter Luckner ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Middle Ear ◽  
Middle Ear Pressure ◽  
Airway Devices ◽  
Pressure Changes

scholarly journals O018 Changes in sleep parameters in children with Down Syndrome following treatment

2021 ◽  
Vol 2 (Supplement_1) ◽  
pp. A8-A8
Author(s):  
J Chawla ◽  
S Burgess ◽  
H Heussler
Keyword(s):  
Down Syndrome ◽  
Sleep Duration ◽  
Intervention Group ◽  
Sleep Diary ◽  
Control Group ◽  
Sleep Habits ◽  
Post Intervention ◽  
Children With Down Syndrome ◽  
Sleep Parameters ◽  
Over Time

Abstract Introduction There is limited evidence about how sleep changes in children with Down syndrome (DS) following sleep interventions. This study evaluated changes in sleep over time in children receiving treatment comparing to a control group who did not. Methods Children with DS, 3-16yrs, attending the sleep clinic were followed for 24-months. Sleep parameters including parent completed child sleep habits questionnaire (CSHQ), PSG and home sleep diary were obtained pre and post sleep interventions for children undergoing treatment. Data was obtained at similar intervals for the control group who were followed over the same time period. Results Data was obtained for 41 participants, 16 children received an intervention and 25 did not. Interventions included ENT surgery (7), CPAP (4), melatonin (3) or a combination (2). The intervention group had a significantly higher average total CSHQ score overall than those in the control group (0.01). Scores decreased over time but remained higher than in controls throughout, and were clinically significant in both groups (>41). Sleep diary estimated average total sleep duration did not differ between groups and was 10hrs/night. PSG showed improvement in OAHI in those children undergoing pre and post intervention studies. Discussion Evaluation of sleep parameters in this referred cohort of children with Down syndrome demonstrates total sleep duration in keeping with national recommendations and improvement in obstruction with treatment. However, CSHQ results indicate ongoing sleep difficulties reported by parents, despite standard sleep interventions. This may reflect persisting non-respiratory sleep disorders, which are not being adequately addressed at present.

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