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  1. Fulltext Endobronchial ultrasound-guided transbronchial mediastinal cryobiopsy: a narrative review
    Ramarmuty HY, Oki M
    Mediastinum, 2024;8:2.
    PMID: 38322189 DOI: 10.21037/med-23-34
    BACKGROUND AND OBJECTIVE: Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is a minimally invasive, safe, and well-established method for diagnosing and staging lung cancer and other conditions associated with mediastinal lymphadenopathy. Efforts have been made to enhance the material adequacy of EBUS-TBNA, including the recent introduction of EBUS-guided transbronchial mediastinal cryobiopsy (EBUS-TMC). This advancement facilitates the acquisition of larger and better-preserved tissue samples from the mediastinum. We evaluated the diagnostic accuracy and safety of EBUS-TMC in the diagnosis of malignant lesions and its effectiveness in relation to benign conditions, such as tuberculosis and sarcoidosis.

    METHODS: We searched the PubMed® database for relevant English articles published up to July 1, 2023. Subsequently, we conducted a comprehensive bibliographic analysis with a particular emphasis on diagnostic yield, safety profile, and procedural technicalities.

    KEY CONTENT AND FINDINGS: Our narrative review, comprising seven publications, emphasizes the significance of EBUS-TMC as an effective technique for obtaining diagnostic tissue in malignant and benign conditions while maintaining an excellent safety profile. Furthermore, its capability for obtaining larger tissue samples facilitates molecular and immunological analysis in non-small cell lung cancer.

    CONCLUSIONS: EBUS-TMC exhibits significant efficacy with regard to obtaining diagnostic tissue in malignant and benign conditions. However, further studies are needed to evaluate uncertainties regarding the selection of suitable cases and technical intricacies.

  2. Fulltext Multiple endobronchial airway stents in a case of relapsing polychondritis - A rare entity
    Alaga A, Mohammed H, Ishida A, Oki M, Saka H
    Respir Med Case Rep, 2022;36:101583.
    PMID: 35036309 DOI: 10.1016/j.rmcr.2022.101583
    Relapsing polychondritis (RP) is a rare multisystem condition. Nearly 50% of patients are suffering from airway involvement in RP and it can be fatal. Besides immunotherapies, endobronchial stenting has been found to be useful in the treatment. Insertion of endobronchial stents in patients with RP has it's own complications and has been associated with increasing morbidity and mortality. We describe placement of multiple endobronchial stents to prevent airway closure in a 76-year-old man with RP due to recurrent dyspnea. Insertion of multiple stents (6th stent) in the left main bronchus was necessary due to severe narrowing of the left main bronchus. Recurrence of airway involvement in RP is common. Early diagnosis and prompt treatment are essential to reduce the risk of life-threatening airway collapse. The insertion of multiple stents in this patient has resulted in improving symptoms, spirometry, and a return to daily activities.
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