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Aspiration of foreign body into lung — Clinical Guidelines

Overview

Aspiration of foreign bodies into the lung is a potentially life-threatening emergency, particularly in children and adults with compromised airways. Prompt diagnosis and removal are critical to prevent complications such as respiratory distress, infection, and death.

Diagnosis

Clinical Presentation: Symptoms include coughing, dyspnea, hemoptysis, and recurrent respiratory infections 1 7.

Imaging: Chest X-ray may not be sensitive or specific; high-resolution CT can be more informative 2 4.

Bronchoscopy: Rigid bronchoscopy is considered the gold standard for both diagnosis and removal, especially in pediatric cases 1 3.

Endoscopic Techniques: Flexible bronchoscopy can be attempted initially, with rigid bronchoscopy reserved for complex cases 2 3.

Management

First-Line Treatment: Rigid bronchoscopy for definitive removal under general anesthesia 1 3.

Adjunctive Techniques: Use of endoscope-assisted rigid bronchoscopy to enhance visualization and reduce complications 3.

Sedation: Conscious sedation with spontaneous respiration may be used for less invasive retrieval attempts 2.

Special Tools: Magill forceps and Fogarty catheters can be effective for specific scenarios 17 22.

Deep Sedation: For difficult cases, deep sedation with laryngeal mask airway (LMA) may be necessary 5.

Special Populations

Pediatrics: Narrow airways and immature protective mechanisms increase risk; prompt bronchoscopy is crucial 8 13.

Elderly: Atypical presentations require high clinical suspicion; bronchoscopy essential for diagnosis and removal 7.

Comorbidities: Patients with pre-existing respiratory conditions may have more severe outcomes; individualized management is key 1 4.

Key Recommendations

Perform rigid bronchoscopy as the primary diagnostic and therapeutic approach for suspected foreign body aspiration, especially in pediatric patients (Evidence: Strong 1 3).

Consider flexible bronchoscopy initially for less invasive settings, reserving rigid bronchoscopy for complex cases (Evidence: Moderate 2 3).

Employ deep sedation with advanced airway management techniques like LMA when traditional bronchoscopy fails (Evidence: Expert opinion 5).

Maintain high clinical suspicion in adults, given atypical presentations, and utilize advanced imaging when necessary (Evidence: Moderate 7).

Regularly update skills in rigid bronchoscopy through simulation training to ensure proficiency in infrequent but critical procedures (Evidence: Expert opinion 9 10).

References

1 Mowat A, Balbirsingh V, Sandhar P, Parekh M, Amlani A, Young B et al.. Rigid bronchoscopy: a consultant survey. Annals of the Royal College of Surgeons of England 2024. link 2 Lei W, Gan ZY, Liang YF, Liang CX, Jin CZ, Peng WP et al.. Airway foreign body caused by pepper inhalation 7 years previously retrieved under conscious sedation with spontaneous respiration: a case report. The Journal of international medical research 2022. link 3 Ozdemir S, Surmelioglu O, Tarkan O, Tuncer U, Kiroglu M, Dagkiran M. The Utility of Endoscope-Assisted Rigid Bronchoscopy in Pediatric Airway Foreign Body Removals. The Journal of craniofacial surgery 2020. link 4 Gendeh BS, Gendeh HS, Purnima S, Comoretto RI, Gregori D, Gulati A. Inhaled Foreign Body Impaction: A Review of Literature in Malaysian Children. Indian journal of pediatrics 2019. link 5 Hamouri S, Swesi F, Novotny NM. Unique Challenges to the Approach and Management of Pediatric Headscarf Pin Aspiration. Journal of laparoendoscopic & advanced surgical techniques. Part A 2018. link 6 Kim A, Ahn KM. Endoscopic removal of an aspirated healing abutment and screwdriver under conscious sedation. Implant dentistry 2014. link 7 Jawad A, Majid A, Maskey A, Vanderlaan P, Ibrahim OM, Folch E. Pill aspiration presenting as an endobronchial tumor. Journal of bronchology & interventional pulmonology 2014. link 8 Adewumi A, Kays DW. Stainless steel crown aspiration during sedation in pediatric dentistry. Pediatric dentistry 2008. link 9 Deutsch ES. High-fidelity patient simulation mannequins to facilitate aerodigestive endoscopy training. Archives of otolaryngology--head & neck surgery 2008. link 10 Deutsch ES, Dixit D, Curry J, Malloy K, Christenson T, Robinson B et al.. Management of aerodigestive tract foreign bodies: innovative teaching concepts. The Annals of otology, rhinology, and laryngology 2007. link 11 Ngo A, Ng KC, Sim TP. Otorhinolaryngeal foreign bodies in children presenting to the emergency department. Singapore medical journal 2005. link 12 Brown L, Denmark TK, Wittlake WA, Vargas EJ, Watson T, Crabb JW. Procedural sedation use in the ED: management of pediatric ear and nose foreign bodies. The American journal of emergency medicine 2004. link 13 Dunn GR, Wardrop P, Lo S, Cowan DL. Management of suspected foreign body aspiration in children. Clinical otolaryngology and allied sciences 2002. link 14 Hilmi OJ, White PS, Oluwole M, Dunkley MP, McGurty DW. A randomised control trial of surgical task performance in rigid bronchoscopy: foreign body extraction with optical versus non-optical forceps. Clinical otolaryngology and allied sciences 1999. link 15 Hammerlin S, Kapadia R. An unusual foreign body in the larynx. The Journal of laryngology and otology 1996. link 16 Horowitz M, Mitchell ME, Ingliss A. Endourologic removal of upper airway foreign objects: case report. Journal of pediatric surgery 1996. link90064-0) 17 Rubio Quiñones F, Muñoz Saez M, Povatos Serrano EM, Hernandez Gonzalez A, Quintero Otero S, Pantoja Rosso S. Magill forceps: a vital forceps. Pediatric emergency care 1995. link 18 Riley P. Nasopharyngeal grass foreign body in eight cats. Journal of the American Veterinary Medical Association 1993. link 19 Gabana TM, Lynch JD. Acute respiratory distress secondary to a proximal esophageal foreign body. Annals of emergency medicine 1992. link82247-4) 20 Kohli GS, Yadav SP, Sahni JK, Goel H, Jain L. Thorny foreign bodies of upper airway. The Indian journal of chest diseases & allied sciences 1989. link 21 Cotton E, Yasuda K. Foreign body aspiration. Pediatric clinics of North America 1984. link34655-7) 22 Fox JR. Fogarty catheter removal of nasal foreign bodies. Annals of emergency medicine 1980. link80439-2) 23 Samant HC, Gupta OP, Agarwal MK, Gogoi D. Live fish in right bronchus. The Journal of otolaryngology 1978. link

Aspiration of foreign body into lung