Development of Mastoid Air Cell System in Children Treated With Ventilation Tubes for Early-Onset Otitis Media: A Prospective Radiographic 5-Year Follow-Up Study

Valtonen, Hannu; Dietz, Aarno; Qvarnberg, Yrjö; Nuutinen, Juhani

doi:10.1097/01.mlg.0000154731.08410.b8

Cited by 44 publications

(53 citation statements)

References 18 publications

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“…gases characterized by perfusion limited transmucosal exchange). Previously, a significant increase in ME pressure was reported for anesthetized patients breathing gas mixtures that included N 2 O [7,30] and one study reported paired data for pneumatized MACS area and the rate of change in ME pressure during 50% N 2 O breathing in adult subjects [18]. Like N 2 , N 2 O is an inert gas whose rate of exchange across the ME mucosa is primarily perfusion limited [28].…”

Section: Hypothesis Testingmentioning

confidence: 99%

“…Developmentally, the MACS shows an age-related increase in volume to exceed that of the tympanum by fold magnitudes in adults. Previous studies reported that children with small MACS volume had significantly more episodes of otitis media and otitis media episodes of longer duration when compared to age-matched controls with large MACS volume, and other studies reported that adults with small MACS volume were at higher risk for otitis media during upper respiratory infections when compared to those with large MACS volume [3][4][5][6][7]. This linkage between MACS size and predisposition to middle ear (ME) disease has been interpreted as evidencing directional causality with either small MACS volume predisposing to otitis media or, alternatively, with otitis media stunting the expansion of MACS volume during growth [2,4,[7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

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The mastoid as a functional rate-limiter of middle ear pressure change

Doyle

2007

International Journal of Pediatric Otorhinolaryngology

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Section: Hypothesis Testingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The mastoid as a functional rate-limiter of middle ear pressure change

Doyle

2007

International Journal of Pediatric Otorhinolaryngology

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“…Disparities in overall size may drive the noted variation seen in the 9-to-18 age group, which represents the greatest age span within the sample, and possibly the greatest differences in overall temporal bone size. Early exposure to otitis media may also result in disparate adult size of the pneumatized spaces, because significant variability in size of pneumatized spaces is evident in clinical samples of individuals with otitis media (e.g., Valtonen et al, 2005). Careful selection of apparently nondiseased individuals may not have been sufficient to prevent this situation, because one incident of otitis media can inhibit pneumatization (Caye-Thomasen et al, 1999).…”

Section: Changes In Surface Areas and Volumes During Ontogenymentioning

confidence: 99%

Ontogenetic Change in Temporal Bone Pneumatization in Humans

Hill

2011

The Anatomical Record

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Pneumatization of the temporal bone is often included in descriptions of fossils and as a phylogenetic marker, but a number of questions about the evolution, growth, and development of the trait remain. Many studies have analyzed temporal bone pneumatization from a clinical perspective, but a systematic quantification of normal development of pneumatized spaces has not been conducted. In this study, ontogenetic change in the size and organization of temporal bone pneumatization is analyzed in a cross-sectional sample of humans. High resolution computed tomography scans of the temporal bone were acquired from a cross-sectional sample of humans (N ¼ 28). Bone volume fractions, anisotropy, trabecular number, trabecular thickness, surface area, and volume were analyzed to provide information about the organization and size of pneumatized spaces across ontogeny. The results indicate that there are general and region-specific patterns of ontogenetic changes in the organization of pneumatized spaces. These changes reflect the transition from nonpneumatized bone to pneumatized bone. It also demonstrates that those regions that are pneumatized early in ontogeny (such as the mastoid antrum) continue to remodel after the initial period of pneumatization. The dynamic nature of temporal bone pneumatization over ontogeny suggests that this character requires careful consideration when used as a character for phylogenetic analyses. These results demonstrate the importance of comparing individuals from similar developmental stages, especially when completing quantitative analyses of the extent of pneumatization or organization of the spaces. Anat Rec, 294:1103Rec, 294: -1115Rec, 294: , 2011. V V C 2011 Wiley-Liss, Inc.

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“…Up to date, there is considerable evidence to indicate that the genetically controlled normal mastoid pneumatization can be changed in varying degrees by postnatal environmental factors. [3][4][5] It has been studied if the paranasal sinus (PNS) could influence the degree of mastoid pneumatization postnatally. Its background is that PNSs drain backward from the superior and middle meatus to the nasopharynx, and the ventilation/drainage outlet of the middle ear-mastoid pneumatization systems opens into the nasopharynx.…”

Section: Introductionmentioning

confidence: 99%

Effect of Nasal Septal Deviation on Pneumatization of the Mastoid Air Cell System: 3D Morphometric Analysis of Computed Tomographic Images in a Pediatric Population

Lee¹,

Jin²

2015

Int Adv Otol

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OBJECTIVE:To evaluate the association between nasal septal deviation (NSD) and the volume of mastoid air cell pneumatization and compare it with the volume of maxillary sinus in a pediatric population. MATERIALS and METHODS:This retrospective cross-sectional study was conducted at a university-based, secondary referral hospital. Paranasal sinus CT imaging data of 59 children were reconstructed to the 3-dimensional model, and subsequently, we measured the volume of the maxillary sinus and mastoid air cell. On coronal images, nasal septal angle (NSA) and NSD/NC (nasal septal deviation/nasal cavity) ratio were measured. RESULTS:Mastoid air cell volume, as well as maxillary sinus volume, of the deviated side was smaller than that of the contralateral side, but these were not statistically significant. There was no correlation between NSA and volumes of mastoid air cell and the maxillary sinus. There also was no correlation between NSD/NC ratio and mastoid air cell and maxillary sinus volumes. Significant linear and growth regression was found between age and volume of the mastoid air cell and maxillary sinus but not between age and NSA and NSD/NC ratio. CONCLUSION:Mastoid air cell volume and maxillary sinus volume of the deviated side tended to be smaller than those of the contralateral side, which suggests that NSD can influence both aerations. However, because the degree of NSD did not correlate with the volumes of the mastoid air cell and maxillary sinus in this study, we should consider that further possible factors may be involved in both aerations.

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Development of Mastoid Air Cell System in Children Treated With Ventilation Tubes for Early-Onset Otitis Media: A Prospective Radiographic 5-Year Follow-Up Study

Cited by 44 publications

References 18 publications

The mastoid as a functional rate-limiter of middle ear pressure change

The mastoid as a functional rate-limiter of middle ear pressure change

Ontogenetic Change in Temporal Bone Pneumatization in Humans

Effect of Nasal Septal Deviation on Pneumatization of the Mastoid Air Cell System: 3D Morphometric Analysis of Computed Tomographic Images in a Pediatric Population

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