Cayenne aspiration: an unusual type of lower airway foreign-body aspiration
Authors Lin L, Wang Y, Zha X, Tang F, Lv L, Liu X
Received 9 September 2014
Accepted for publication 20 October 2014
Published 21 November 2014 Volume 2014:9 Pages 2019—2025
Checked for plagiarism Yes
Review by Single anonymous peer review
Peer reviewer comments 3
Editor who approved publication: Dr Richard Walker
Lianjun Lin,1 Yuchuan Wang,1 Xiankui Zha,2 Fei Tang,2 Liping Lv,2 Xinmin Liu1
1Geriatric Department, Peking University First Hospital, Beijing, 2Pulmonary Intervention Department, Anhui Chest Hospital, Hefei, People’s Republic of China
Purpose: Cayenne aspiration is an unusual type of foreign-body aspiration that is usually misdiagnosed. This article analyzes the clinical features of cayenne aspiration in the lower airway.
Patients and methods: Clinical data on eight adult patients with cayenne aspiration were retrospectively analyzed. Six were elderly patients. The data were collected from Peking University First Hospital and Anhui Chest Hospital between January 2010 and August 2014.
Results: The most common symptoms of cayenne aspiration were cough (eight cases, 100%) and sputum (five cases, 62.5%). Only one patient (12.5%) could supply the history of aspiration on his first visit to doctor and was diagnosed definitely without delay. The other seven cases were misdiagnosed as pneumonia and the time to accurate diagnosis was from 1 month to 6 months. The history of aspiration could be recalled after confirmed diagnosis for the other seven cases. The most common presentation shown by chest computed tomography (CT) was pneumonic opacity (eight cases, 100%). The existence of cayenne could not be detected by chest CT in any of the patients. All the patients were diagnosed definitively and managed successfully with flexible bronchoscopy. Cayenne was more often lodged in the right bronchus tree (seven cases, 87.5%), especially the right lower bronchus (four cases, 50%). The segment of cayenne was complete in five cases (62.5%) and scattered in three cases (37.5%).
Conclusion: The clinical features of cayenne aspiration are usually obscure and nonspecific which may lead to delay in diagnosis. Flexible bronchoscopy is safe and useful for early diagnosis and effective management.
Keywords: clinical features, flexible bronchoscopy, chest CT, pneumonia
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