BackgroundOdontogenic infections are usually treated by general dentists in the community. However, when the infection spreads beyond the confines of the bony maxilla or mandible, it has the potential to result in life-threatening complications. The diagnosis and treatment of these odontogenic infections that warrant in-hospital treatment remains a significant burden to the health care system.
Aims1. To determine if there have been any changes to the demographics and presentation of patients being treated for odontogenic infections at a tertiary hospital in Brisbane, Australia.2. To determine if there are any clinical or biochemical predictors of Intensive Care Unit (ICU) admission.3. To determine if pre-operative imaging, namely Computed Tomography (CT) scans are being appropriately used in the management of these odontogenic infections.
MethodsA retrospective chart review was conducted after ethics and site-specific approval. All patients taken to theatre with odontogenic infections between 2003 to 2004 and 2013 to 2014 at Royal Brisbane and Women's Hospital were identified and included in the study.Hospital records were individually reviewed and data de-identified and recorded. A standardised data collection sheet was used to collect details on patient demographics, presentation, prior history, antimicrobial therapy, imaging and treatment outcome. Descriptive statistics were utilised for each recorded attribute, and a chi-square analysis was used to compare the data for the two cohorts. A multiple regression model was used to analyse predictors of ICU admission.
ResultsThere was no significant difference in patient demographics between the two cohorts. 101 patients were identified in the earlier cohort, compared to 191 identified in the later cohort.The 2013/14 cohort had a two-fold increase in presentation of lower third-molar related infections (p=0.000), 50% increase in trismus presentation (p=0.000) and 20% increase in submandibular swelling (p=0.010). The percentage of patients admitted to ICU increased by 3.5-fold in the 2013/14 cohort (p=0.000). The overall length of stay increased from 1.7 to 3.5 days (p=0.004). The most significant predictors of ICU admission were lower third molar involvement (p=0.026), dysphagia (p=0.02) and CRP levels exceeding 150mg/L (p=0.039). Preoperative CT scanning increased from 6% in the earlier cohort to 79% in the later cohort.
ConclusionThe presentation of odontogenic infection has increased in the decade from 2003/04 to 2013/14. Measures of disease severity have increased, while demographics of the patients remained constant. The utilisation of ICU and the length of hospital stay have increased.There needs to be improved effort in primary preventative measures and early interventions are needed to alleviate the burden of severe odontogenic infections on the public health system. Further research is required to assess whether judicious use of CT scanning, combined with prompt surgical intervention, can lead to improvement in treatment outcomes.
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