Jugular bulb position and shape are unrelated to temporal bone pneumatization

Jb, Orr; Nw, Todd

doi:10.1288/00005537-198802000-00003

Cited by 30 publications

(20 citation statements)

References 5 publications

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“…In an earlier report (Turgut and Tos, 1992), pneumatization of the mastoid bone was claimed as a cause of high JB; however, there are also some other researchers (Orr and Todd, 1988;Aslan et al, 1997) who advocate the idea that there is no relation between the position of the JB and pneumatization. In this study, the JB was found to be higher on the right side; however, no statistically significant differences were found between the COM group and the control group regarding the height of the JB.…”

Section: Discussionmentioning

confidence: 98%

Craniofacial measures of chronic otitis media patients by 2D reformatted CT

et al. 2010

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Few authors have studied differences in craniofacial morphology of adults with chronic otitis media (COM). We sought to compare the craniofacial measurements of patients with COM with otherwise healthy adults. The study group included 120 adult patients. The control group had 30 men and 30 women without evidence of otitis media; a COM group consisted of 30 men and 30 women with COM. Craniofacial measurements were assessed retrospectively using a two-dimensional reformatted CT method. Multiple linear (bony and cartilaginous auditory tube length, size of the mastoid, height of the jugular bulbus, intercochlear distance, bitemporal distance, distance between pharyngeal orifices, and some cephalometric cranial base distances), angular (auditory tube angle, cranial base angle), and area (axial and sagittal nasopharynx size) measurements were performed. In addition, petrosquamosal (Körner's) septum prevalence and size were evaluated. No statistically significant differences were found regarding craniofacial variables except mastoid size (mastoid depth and length). None of the craniofacial parameters showed significant differences between adults with COM and adults without evidence of otitis media, when age, sex, and race were considered. No statistically significant differences were found when mastoid size was compared with unilateral and bilateral COM. No statistically significant difference was found between mastoid size of the intact side and involved side of the unilateral patients with COM. Patients with unilateral and bilateral COM may be in the same group, genetically or environmentally, as far as mastoid size is concerned. Small mastoid size correlates with COM, but development of clinical disease should be under the control of different factors.

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Section: Discussionmentioning

confidence: 98%

Craniofacial measures of chronic otitis media patients by 2D reformatted CT

et al. 2010

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“…However, Orr et al [14] reported that the dissection determined the distance from the plane of the lateral SSC to the roof of the jugular bulb (2 mm to 15 mm) had a good correlation with the distance from the internal auditory canal to the apex of the JB (1.5 mm to 15.0 mm) [10]. In the presnt study, we measured the SS-LSSC distance as 15.14 ± 1.70 mm in the bilateral HJB group, 15.76 mm in the unilateral HJB group, and 14.38 mm in the control group.…”

Section: Discussionmentioning

confidence: 98%

“…The jugular bulb is known to vary widely in position and dimension and to occasionally cause difficulty in temporal bone surgery [14]. The dehiscent jugular bulb can present a mass lesion in the middle ear and can unexpectedly be a problem during middle ear surgery.…”

Section: Discussionmentioning

confidence: 99%

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The Pitfalls and Important Distances in Temporal Bone HRCT of the Subjects with High Jugular Bulbs – Preliminary Report

İnal¹,

Muluk²,

Dağ³

et al. 2015

Adv Clin Exp Med

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Background. High jugular bulb (HJB) may be detected unilaterally or bilaterally in temporal bone high resolution computerized tomography (HRCT). Objectives. In this retrospective study, we investigated the pitfalls and important surgical distances in patients with unilateral and bilateral HJB via temporal bone HRCT. Material and Methods. In this preliminary report, the study group consisted of 20 adult patients (12 male, 8 female), or 40 ears, all of which underwent temporal bone HRCT. We divided them into groups that consisted of bilateral HJB (14 ears), unilateral HJB (13 ears), and control (No HJB, 13 ears). The anotomical relationships of the sigmoid sinus, jugular bulb, and carotid artery with several landmarks in the temporal bone were studied via temporal bone axial and coronal HRCT. The shortest distances between certain points were measured. These measurements were analyzed in respect to pneumatization. Dehiscence on the jugular bulb (JB) and internal carotid artery (ICA) and the dominance of JB were also evaluated for all of the groups. Results. In the axial sections of the temporal bone HRCTs, the sigmois sinus (SS)-external auditory canal (EAC) distance of the bilateral HJB group (14.00 ± 1.17 mm) was significantly lower than that of the control group (16.46 ± 2.14 mm). The JB-posteromedial points of the umbo on the ear drum (ED) distance of the bilateral HJB (6.28 ± 1.72 mm) and the unilateral HJB groups (7.23 ± 2.00 mm) were significantly lower than that of the control group (11.15 ± 2.30 mm). In the coronal sections of the temporal bone HRCT, the JB-F distance of the bilateral HJB group (5.42 ± 2.10 mm) was significantly lower than that of the control group (8.30 ± 2.28 mm). As the mastoid pneumatisation and mastoid volume increased, the percentage of ICA-dehiscence and the percentage of JB-dehiscence increased. Conclusions. In subjects with well-pneumatised mastoids, the doctors should be aware of the increased risk of ICA-dehiscence and JB-dehiscence. These measurements should be done in greater series to yield more thorough knowledge (Adv Clin Exp Med 2015, 24, 2, 315-324).

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“…Various hypotheses have been put forward to explain abnormal developments of the jugular bulb, such as pre vious phlogosis of the middle ear [4], hypoplasia or thrombosis of the contralateral encephalic venous drain age system [1,5], arteriovenous malformations [6], ve nous sinus malformations [7] and low pneumatization of the temporal bone [2], However, recent studies exclude the influence of most of these causes and, in particular, show that there is no relationship between the position of the jugular bulb and the pneumatization of the temporal bone [8,9].…”

Section: Introductionmentioning

confidence: 99%

Jugular Bulb Diverticula

Presutti

Laudadio²

1991

ORL

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Jugular bulb diverticula may extend either laterally in the tympanic cavity or medially towards the petrous pyramid close to the inner ear. In the first case, this leads to subjective symptoms related to the presence of a mass at the level of the tympanic cavity and the external auditory canal and thus to conductive hearing loss and pulsatile tinnitus. In the second case, vertigo, pulsatile tinnitus and sensorineural hearing loss occur. 4 cases of jugular bulb diverticula are described (1 medial type, 3 lateral type).

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Jugular bulb position and shape are unrelated to temporal bone pneumatization

Cited by 30 publications

References 5 publications

Craniofacial measures of chronic otitis media patients by 2D reformatted CT

Craniofacial measures of chronic otitis media patients by 2D reformatted CT

The Pitfalls and Important Distances in Temporal Bone HRCT of the Subjects with High Jugular Bulbs – Preliminary Report

Jugular Bulb Diverticula

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