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Updated: Feb 9, 2026

Applications of RNA Interference in American Cockroach
Published on: December 17, 2021
A complicated cockroach-ectomy
Jaideep Vazirani1, Christiaan Yu1, Robert Stirling1
1Department of Allergy, Immunology and Respiratory Medicine The Alfred Hospital Melbourne Victoria Australia.
Abstract:
The exact incidence of foreign body aspiration among adults is unknown, and its clinical presentation is vastly divergent. We report the previously undescribed occurrence of cockroach aspiration in an adult, presenting with a "crawling sensation" in his chest. Flexible endobronchial examination revealed a foreign body impacted in the lingula, resembling the Australian cockroach Periplaneta australasiae. Partial extraction via biopsy forceps was performed and complicated by acute hypoxia on disimpaction, requiring a brief period of bag/mask ventilation. Following the offset of procedural sedation, the remaining foreign body was manually expectorated. A total of 24 h post-procedure, the patient was febrile with positive blood cultures (Micrococcus luteus). We highlight the importance of definitive airway support during endobronchial interventions and raise the question regarding the significance of transient bacteraemia following bronchoscopic manipulation.
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