Radiology of acute mastoiditis and its complications: a pictorial review and interpretation checklist

Mather, Michael; Yates, P D; Powell, Jason; Zammit-Maempel, I

doi:10.1017/s0022215119001609

Cited by 12 publications

(9 citation statements)

References 20 publications

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“…These complications usually form per continuitatem or via haematological spread, and include sinus venous thrombosis, meningitis, labyrinthitis, epidural or intracranial abscess, or mastoiditis with development of osteitis and subperiosteal abscess. 9 Radiological key findings of ‘uncomplicated’ acute otitis media include fluid within the middle ear and mastoid, resulting in an opacification, with intact bony architecture of the ossicular chain and mastoid septae.…”

Section: Discussionmentioning

confidence: 99%

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An intact bony tympanic facial canal does not protect from secondary facial paresis in adult acute otitis media

et al. 2020

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ObjectiveTo investigate the prevalence of bony dehiscence in the tympanic facial canal in patients with acute otitis media with facial paresis compared to those without facial paresis.MethodA retrospective case–control study was conducted on acute otitis media patients with facial paresis undergoing high-resolution temporal bone computed tomography.ResultsForty-eight patients were included (24 per group). Definitive determination of the presence of a bony dehiscence was possible in 44 out of 48 patients (91.7 per cent). Prevalence of bony dehiscence in acute otitis media patients with facial paresis was not different from that in acute otitis media patients without facial paresis (p = 0.21). Presence of a bony dehiscence was associated with a positive predictive value of 66.7 per cent in regard to development of facial paresis. However, an intact bony tympanic facial canal did not prevent facial paresis in 44.8 per cent of cases (95 per cent confidence interval = 34.6–55.6).ConclusionPrevalence of bony dehiscence in acute otitis media patients with facial paresis did not differ from that in acute otitis media patients without facial paresis. An intact tympanic bony facial canal does not protect from facial paresis development.

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Section: Discussionmentioning

confidence: 99%

“…As mentioned above, contrast-enhanced, high-resolution temporal bone CT (bone and soft tissue kernel) was performed in all included patients to rule out intracranial or extracranial complications of acute otitis media, and as part of a bone anatomy roadmap for subsequent potential surgery. 9…”

Section: Methodsmentioning

confidence: 99%

An intact bony tympanic facial canal does not protect from secondary facial paresis in adult acute otitis media

et al. 2020

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“…Mastoiditis occurs due to the expansion of inflammation of the middle ear, where the result of this inflammation affects the size of the mastoid air cells [5]. This infection can spread from the temporal bone to the head and neck making it difficult and necessitating cross-sectional imaging in diagnosing and planning surgery [6,7]. In the medical field, misdiagnosis or the absence of a specialist can affect a patient's health, lead to unnecessary testing and increase health care costs.…”

Section: Introductionmentioning

confidence: 99%

Development of Mastoid Air Cell System Extraction Method on Temporal CT-scan Image

Arlis

Defit

Sumijan

2022

J. RESTI (Rekayasa Sist. Teknol. Inf.)

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Mastoiditis is disease that to infection of the mastoid bone cavity that affects the size of the air cell system of the temporal bone. Visually, the information temporal CT image mastoid bone has can assist medical experts in viewing the mastoid air cell system (MACS), but the fact that medical personnel are experiencing difficulties in determining the size MACS is due to the many different characteristics and objects overlap, so that in the measurement of the area, precise and accurate results have not been obtained. This study aims to separate the object of the MACS with the development of extraction. The proposed method uses Morphology and Regionprops operations. The dataset used in the testing process is 347 of 5 patients indicated for Mastoiditis. The results obtained can calculate the area of MACS for each test image. Based on image testing, the area of the smallest MACS in this study was 0.589 cm2 and the largest was 6.183 cm2. This, the smaller the size of the MACS indicates the severity of infection, so this study can help medical personnel make decisions and take appropriate treatment actions.

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“…The most common complications seen in children with AM are a sub-periosteal abscess (SPA), sigmoid sinus thrombosis (SST), peri-sinus fluid/abscess, epidural/subdural abscess, and acute meningitis. These complications are diagnosed clinically and radiologically (5) . Surgery with ventilation tube insertion, has a vital role in treating complicated mastoiditis, along with antibiotics (6) , antipyretics, and anticoagulation, in cases of SST (7) .…”

Section: Introductionmentioning

confidence: 99%

The clinical course of children undergoing mastoidectomy due to complicated mastoiditis

Ziv

Sapir

Leibowitz

et al. 2021

Preprint

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Objectives: To determine the immediate post-operative course and outcome of pediatric patients with complicated acute mastoiditis (CAM) undergoing simple mastoidectomy. Study Design: A retrospective chart review of children diagnosed with CAM who underwent a mastoidectomy during 2012-2019. Setting: Tertiary care university hospital. Participants: 33 patients were divided into two groups: 17 patients with subperiosteal abscess (SPA) alone- single complication group (SCG) and 16 patients with SPA and additional complications (sigmoid sinus vein thrombosis, perisinus fluid/abscess, epidural abscess)-multiple complications group (MCG). Main Outcome Measures: post-operative data were collected. Demographics, microbiology data, inflammatory parameters, hospitalization length, and POF pattern were recorded, compared, and analyzed. Results: Of 162 acute mastoiditis patients, 33(20.4%) underwent surgery due to CAM; 17(51%) and 16(49%) belonged to the SCG and MCG, respectively. 6/17(35.3%) SCG patients experienced POF vs. 12/16(75%) in the MCG (P=0.012). At post-operative day 2 (POD2), 10/13(77%) febrile patients belonged to MCG and 3/13(23%) to SCG (P=0.013). POF was recorded until POD6 in both groups. Seven patients, all from MCG with POF, underwent second imaging with no new findings; A total of 18 positive cultures were reported. Fusobacterium necrophorum counted for 8/18(44.5%) of all positive cultures, 7/9(77.8%) in the MCG vs. 1/9(11.1 %) in the SCG, P=0.004. Streptococcus pneumoniae was reported only in SCG (5/9, 55.5%, vs. 0/9, P=0.008). Conclusion: Post-mastoidectomy fever due to CAM is not unusual and seems to be a benign condition for the first 5-6 days following surgery. MCG patients are more prone to develop POF. F. necrophorum is more likely to be associated with MCG, and S. pneumoniae is common in SCG patients. Keywords: Mastoiditis, post-operative fever, complications, microbiology

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Radiology of acute mastoiditis and its complications: a pictorial review and interpretation checklist

Cited by 12 publications

References 20 publications

An intact bony tympanic facial canal does not protect from secondary facial paresis in adult acute otitis media

An intact bony tympanic facial canal does not protect from secondary facial paresis in adult acute otitis media

Development of Mastoid Air Cell System Extraction Method on Temporal CT-scan Image

The clinical course of children undergoing mastoidectomy due to complicated mastoiditis

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