Diagnostic accuracy of intrathecal fluorescein versus other radiological modalities in evaluating non-congenital skull base defects: a systematic review and meta-analysis.

PURPOSE: The intraoperative detection of cerebrospinal fluid (CSF) leaks during endoscopic skull base surgery is critical to ensure watertight sealed defects. Intrathecal fluorescein (ITF) is a valuable adjunct to intraoperative investigation. Hence, our aim is to summarize the evidence of the efficacy of ITF as an accurate diagnostic modality and reconstruction guide for non-congenital skull base defects. METHODS: Using the Cochrane Central, MEDLINE, and Embase databases, we identified studies involving the use of ITF in non-congenital CSF leaks which were published until November 2023. The STATA 18 software was used for meta-analysis. RESULTS: Fourteen studies met the inclusion criteria, in which seven studies were included in the meta-analysis. ITF was used in 1898 (90.3%) of patients, with a detection rate of 88.1%. The overall detection rate of non-congenital CSF leaks among ITF concentrations of 5% and 10% had a statistically significant pooled effect size of 2.6 (95% CI = 2.25, 2.95), while when comparing the ITF to other alternative radiological tests, it was not statistically significant with a mean difference of 0.88 (95% CI = - 0.4, 2.16). Moreover, the pooled prevalence was statistically significant in regards of the complications associated with ITF with an effect size of 0.6 (95% CI = 0.39, 0.82), indicating that 60% of patients who underwent ITF would experience at least one of the measured complications. CONCLUSION: ITF is considered as an efficient tool in localizing skull base defects. However, there was no significant results when comparing the ITF to other alternative radiological tests. Accordingly, if the ITF intervention is indicated, patients should be carefully selected based on their clinical need.

Nontraumatic oculomotor nerve palsy following endoscopic sinus surgery.

The proximity of the paranasal sinuses to the orbit and its contents increases the chances of injuries during endoscopic sinus surgery (ESS). We present an extremely rare case of transient oculomotor nerve palsy with no direct injury following ESS, which has never been reported in the literature. The proper clinical approach and medical management are also discussed in this case report.

Lemierre syndrome: a hidden complication of sore throats.

BACKGROUND: Lemierre syndrome is a rare but potentially life-threatening condition characterized by septic thrombophlebitis of the internal jugular vein, most commonly caused by Fusobacterium necrophorum. CASE PRESENTATION: A 46-year-old woman with no significant medical history presented with generalized neck swelling and fever. Despite seeking medical attention at multiple outpatient clinics for upper respiratory symptoms lasting 10 days, she only received symptomatic treatment for acute viral pharyngitis. A computed tomography (CT) scan of her neck revealed thrombophlebitis in the left internal jugular vein, and subsequent cultures indicated the presence of Klebsiella pneumoniae. The patient's oxygen saturation levels suddenly dropped, and the CT scan identified bilateral peripheral consolidation areas in both lungs, consistent with septic emboli. These findings were consistent with a diagnosis of Lemierre syndrome. The patient was treated with 2 weeks of intravenous piperacillin/tazobactam and vancomycin, as well as anticoagulation therapy using heparin, and her symptoms resolved completely. CONCLUSION: This report presents an unusual occurrence of Lemierre syndrome caused by K. pneumoniae, a less frequently encountered causative pathogen in patients without diabetes mellitus. The case highlights the significance of timely and appropriate antibiotic use to prevent potential complications.

Detecting serum galactomannan to diagnose acute invasive Aspergillus sinusitis: a meta-analysis.

PURPOSE: The serum galactomannan test has been used for diagnosing acute invasive fungal sinusitis (AIFS), especially invasive Aspergillus. We aimed to assess the accuracy of the test to diagnose acute invasive Aspergillus sinusitis (AIAS). METHODS: We searched all relevant articles published in PubMed, Embase, the Cochrane Library, and Web of Science databases up until September 14, 2020. The available data for serum galactomannan test to diagnose AIAS from selected studies were assessed. The diagnostic odds ratio (DOR), summary receiver operating characteristics (SROC), sensitivity, specificity, positive likelihood ratio (PLR), and negative likelihood ratio (NLR) were estimated. Additionally, we analysed four studies with a cut-off value of 0.5. RESULTS: Five eligible articles were selected in this study. The total number of enrolled patients was 118, and 62 patients had confirmed AIAS. Among these 62 patients, the summary estimates of the serum galactomannan assay were as follows: DOR, 3.37 (95% confidence interval [CI]: 1.47-6.66); sensitivity, 0.63 (95% CI 0.50-0.74); specificity, 0.65 (95% CI 0.51-0.76); PLR, 1.83 (95% CI 1.21-2.74); NLR, 0.58 (95% CI 0.39-0.83). The SROC was 0.68. CONCLUSION: In this current meta-analysis, the serum galactomannan test was classified as less accurate for purposes of diagnosing confirmed AIAS. These results suggest that the initial diagnosis of AIAS should not solely be dependent upon serum galactomannan test results. More studies of the test are needed in patients with AIAS to more accurately assess its diagnostic value.

Role of specific IgE on staphylococcal enterotoxin B in chronic rhinosinusitis severity.

OBJECTIVE: To investigate the clinical significance of specific IgE-staphylococcal enterotoxin B (IgE-SEB) in CRS (chronic rhinosinusitis). DESIGN: Retrospective analysis of patients who were positive for specific IgE-staphylococcal enterotoxin B. SETTING: Tertiary rhinology clinic. PARTICIPANTS: A total of 965 patients who were tested for specific IgE-staphylococcal enterotoxin B from December 2016 to December 2017. MAIN OUTCOME MEASURES: We retrospectively reviewed the records of 965 patients who were tested for specific IgE-staphylococcal enterotoxin B from December 2016 to December 2017. Patient demographics, titre-specific IgE to staphylococcal enterotoxin B levels, MAST, serologic test and medical records were reviewed. RESULTS: IgE-SEB (KU/L) was higher in CRS patients than non-CRS patients (0.13 ± 0.37 vs 0.08 ± 0.22, respectively; P-value: .044), and the IgE-SEB (+, ≥0.35) rate was also higher (10.06% vs 4.46%, respectively; P-value: .030). IgE-SEB (KU/L) was higher in the CRS group than in the fungal sinusitis group (0.13 ± 0.37 vs 0.03 ± 0.05, respectively; P-value: <.001), and the IgE-SEB (+, ≥0.35) rate was also higher (10.06% vs 0%, respectively; P-value: .015). Between the CRSsNP (chronic rhinosinusitis without nasal polyps) and CRSwNP (chronic rhinosinusitis with nasal polyps) groups, there were no differences in IgE-SEB (KU/L) or IgE-SEB (+) rates. IgE-SEB positivity was not associated with the presence of polyps, concomitant asthma or postoperative recurrence. As the values of IgE-SEB (KU/L) and the IgE-SEB (+, >0.1) rate increased, the CRS severity also increased. CONCLUSIONS: IgE-SEB showed a positive correlation with Lund-Mackay CT severity score, but not with postoperative recurrence or nasal polyps. Further studies are needed to obtain clear evidence that IgE-SEB can be considered as an independent CRS endotype.

A Rare Presentation of Inflammatory Myofibroblastic Tumor in the Nasolabial Fold.

Inflammatory myofibroblastic tumor (IMT) is a benign lesion that occurs most frequently in the soft tissues and viscera. In the head and neck region, the tumor has been reported to occur in the orbit, tongue, nasopharynx, larynx, and paranasal sinuses and the central nervous system. Despite being a benign lesion, it exhibits infiltrative and destructive behaviours, making histopathological examination necessary to confirm the diagnosis. We report the case of a 38-year-old female presented with a right nasolabial fold mass, which was confirmed histologically to be an IMT. Surgical excision of the mass was achieved through a sublabial approach with an uneventful postoperative period. To the best of our knowledge, this is the first reported case of an IMT in the nasolabial fold.