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Purpose of Review: Eosinophilic myocarditis (EM) is a rare and heterogeneous form of inflammatory heart disease that can present with a wide range of severity. Current literature is limited to case reports or small case series that outline the evaluation process, disease course, and the nonstandardized treatments trialed. This review aims to concisely summarize the current literature on EM including an update on maintenance therapy for refractory or recurrent disease., Recent Findings: In the last several years, several observational studies have reported the clinical benefit of mepolizumab and benralizumab in refractory EM. EM is a complex and heterogenous cause of inflammatory heart disease with a wide range of etiologies and presentations. Treatment of this disease has not been standardized as there are no large scale trials quantifying benefit of any specific therapy regimen. Targeted biologics show promise in observational studies; therefore, prospective studies are needed to quantify this benefit in EM., Competing Interests: Declarations. Human and Animal Rights and Informed Consent: This article does not contain any studies with human or animal subjects performed by any of the authors. Competing Interests: The authors declare no competing interests., (© 2024. The Author(s).)

Introduction: Carotid blowout syndrome (CBS) is a potentially life-threatening complication of head and neck cancer and associated treatment. In this study, we assess the safety and efficacy of deconstructive and reconstructive procedures with a focus on CBS recurrence., Methods: We conducted a multicenter retrospective analysis of a prospectively maintained database and identified 80 consecutive neurointerventions for CBS from 2016 to 2020. Patients were divided into 2 groups: deconstructive embolization (68 patients) and reconstructive stenting (12 patients). A comparative analysis was performed between the two groups., Results: The CBS recurrence rate was 23.8 % with 84.2 % of recurrences occurring within 90 days of the primary event. The median time to rebleeding was 8.0 days (IQR: 2.0 - 28.5) with a mortality rate of 26.3 %. There was no significant difference in rates of peri-operative ischemic stroke (1.5 % vs. 0 %, p=0.672) or peri-operative mortality (1.5 % vs. 0 %, p=0.670). CBS recurrence was significantly higher in the reconstructive group (58.3 % vs. 17.6 %, p=0.002). On multivariate analysis, reconstructive stenting independently predicted rebleeding (adjusted hazard ratio 8.31, 95 % CI: 2.34-29.59, p=0.001). There was no significant association between CBS recurrence and pre-operative (p=0.600) or post-operative (p=0.275) anticoagulant/antiplatelet use., Conclusion: CBS remains a challenging and potentially catastrophic complication of head and neck cancers. Reconstructive procedures, including stenting, predicted CBS recurrence independent of bleeding site or tumor invasion. Postoperative surveillance based on time intervals to CBS recurrence and engineering advancements including improved vessel reconstruction devices have the potential to reduce rehemorrhage rates and improve patient outcomes. Further clinical investigations amongst larger cohorts are needed., (Copyright © 2024. Published by Elsevier B.V.)