Ten years of paediatric airway foreign bodies in Western Australia

Foreign body aspiration in children: our pediatric tertiary care experience

PURPOSE

Inhalation of a foreign body is a real emergency in pediatric age and requires prompt diagnosis and treatment to reduce mortality. The objective of this study is to analyze clinical and radiological details, types, and localization of foreign bodies in patients conducted or to our hospital with suspected inhalation.

METHODS

We conducted a retrospective analysis of all cases of foreign body inhalation admitted to our Pediatric Emergency Room between January 2009 and June 2022.

RESULTS

171 patients were included in the study. In 83 patients, the FB was detected. The mean age of presentation was 2.3 years (SD: ± 2). Cough (73%) and unilateral reduced breath sound (51%) were the most common clinical symptom and clinical sign. The most frequent localization was the right main bronchus (43%). The foreign bodies retrieved were vegetable (83%), of which peanut was the most common. Chest radiographs were normal in 25%. The mean duration of hospitalization was 5 days (± 2.9). Complications such as pneumothorax were seen in two cases.

CONCLUSIONS

Foreign body inhalation represents a true pediatric emergency and still a challenge in clinical practice. The best way to manage it is an early diagnosis and removal by fully trained staff.

Principal diagnostic features of paediatric foreign body aspiration

OBJECTIVES

The aim of this study is to identify the most common and important features within the presenting history, clinical examination and chest radiograph that are associated with foreign body (FB) aspiration in the paediatric population, to support rationalised decision making in regards to proceeding with diagnostic bronchoscopy.

METHODS

A retrospective notes review was conducted of 70 patients over a 12-year period at our tertiary referral centre. Their presenting history, clinical and radiographic signs were documented and univariate logistic regression model used to calculate odds ratios.

RESULTS

The main features identified within our cohort with a positive FB finding at bronchoscopy were history of a cough (OR 5.1, p = 0.008) and radiographic evidence of hyperinflation or air trapping (OR 7.1, p = 0.016). Zero patients with a FB presented with only a positive history in the absence of other clinical or radiological signs. History of a witnessed choking episode neither increased or decreased the likelihood of as aspirated FB (OR 1, p = 0.967).

CONCLUSIONS

We have identified two principal features, as described above, which are associated with paediatric FB aspiration. Reliance on a positive clinical history alone, but specifically the history of a witnessed choking episode, did not support the presence of a FB and other associated signs need to be considered in deciding to proceed to bronchoscopy.

An unusual presentation of necrotizing pneumonia caused by foreign body retention in a 20-month-old child: A case report and literature review

Necrotizing pneumonia (NP) is a rare but serious complication that occurs after foreign body retention. We report a case of severe NP in an infant caused by foreign body retention in the airway with no choking history. After a timely tracheoscopy and effective antibiotic treatment, her initial clinical symptoms were alleviated. However, she subsequently exhibited pulmonary manifestations of necrotizing pneumonia. To reduce the risk of NP from foreign body aspiration, for patients with airway obstruction and asymmetrical opacity of both lungs, timely diagnostic bronchoscopic evaluation is essential.

Comparison of chest X-ray interpretation by pediatric pulmonologists, pediatric radiologists, and pediatric residents in children with suspected foreign body aspiration-a retrospective cohort study

Chest X-ray (CXR) is an important tool in the assessment of children with suspected foreign body aspiration (FBA), although it can falsely be interpreted as normal in one-third of the cases. The aim of this study is to evaluate the positive predictive value of CXR in children hospitalized with suspected FBA, when interpreted by three disciplines: pediatric pulmonology, pediatric radiology, and pediatric residents. This is a retrospective study that included children aged 0-18 years, admitted with suspected FBA, between 2009 and 2020 in one tertiary center. All patients underwent CXR and a flexible/rigid bronchoscopy for the definitive diagnosis of FBA, up to 1 week apart. Two physicians from each discipline interpreted the CXR, independently. Intra-raters' and inter-raters' agreements were assessed. Sensitivity, specificity, and area under the curve (AUC) were calculated for each discipline. Four hundred seventy-three children were included in the study, 175 (37%) with FBA and 298 (63%) without FBA on flexible/rigid bronchoscopy. The most common radiological findings, as interpreted by a pediatric pulmonologist, were unilateral hyperinflation (47%), radiopaque FB (37.6%), lobar atelectasis (10.3%), unilateral hyperinflation with atelectasis (3.4%), and lobar consolidation (1.7%). Intra-raters' agreement ranged from 0.744 (p < 0.001) among pediatric pulmonologists to 0.326 (p < 0.001) among pediatric radiologists. AUC for predicting FBA based on a CXR was 0.81, 0.77, and 0.7 when interpreted by pediatric pulmonologists, pediatric residents, and radiologists, respectively (p < 0.001).

CONCLUSIONS

CXR has a high positive predictive value and independently predicts FBA in children; however, normal CXR should not rule out FBA. Predictability is variable among different disciplines.

WHAT IS KNOWN

• Chest X-ray is an important tool in the assessment of children with suspected foreign body aspiration (FBA). • Chest X-ray can be interpreted as normal in one-third of the cases.

WHAT IS NEW

• Chest X-ray independently predicts FBA in children, with a high positive predictive value. • The ability of chest x-ray to predict FBA in children differs between pediatric residents, pediatric radiologists, and pediatric pulmonologists.

PEANUTS: a national survey on the management of pediatric tracheobronchial foreign bodies

To assess the different types of management of pediatric foreign body aspirations in order to help define guidelines, depending on clinical presentation. A national survey in France was emailed to all 30 university-affiliated departments of otolaryngology-head and neck surgery and pediatric pulmonologists in France. Data concerning the center and the experience of each participant were collected in order to define an "senior expert" group with experience of extracting more than 10 foreign bodies and a "junior/non-expert" group. Both groups answered questions concerning five clinical cases of foreign body aspiration of different severities. Ninety-eight participants answered this survey (75 otolaryngologists and 23 pulmonologists), representing 28 of the 30 university-affiliated departments in France with a completion rate of 89%. Responses of the senior expert group were similar for clear-cut situations, such as an asymptomatic child with a low probability of foreign body aspiration and for a symptomatic child with respiratory distress. However, for intermediate situations, management varied significantly according to the physician when considering clinical, radiological, and surgical management. In comparison to the senior expert group, the junior non-expert group seemed more precautious in the management of foreign body aspiration for intermediate cases, in particular, concerning the time at which extraction was performed.  Conclusion: The management of foreign body aspiration depends on the physician's experience and the center's habits. In order to optimize patient care for foreign body aspiration, we suggested a management algorithm based on the senior expert group responses. What is Known: • Foreign body aspirations (FBA) are dreaded by pediatricians, pediatric otolaryngologists, and pulmonologists particularly because of the potential fatal outcome. • However, consensus concerning their management is not clearly defined in the literature. What is New: • This study is the first to evaluate the management of foreign body aspirations (FBA) from the clinical assessment by the emergency medicine physician to the extraction of the foreign body. • A management algorithm was designed and secondarily validated by the SE group to help to emergency medicine physician and specialist to manage FBA.

The characteristics of foreign bodies aspirated by children across different continents: A comparative review

BACKGROUND

Foreign body aspiration (FBA) is a common issue in pediatric emergencies, with regional variations. Various cultures and foods, parents' and physicians' inadequate experience, and lack of bronchoscopy equipment are some attributable factors in the regional variation of FBA.

AIM

To more accurately represent the demographic characteristics of aspirated foreign bodies (FBs) across various continents, this review attempted to provide organized information based on the reviewed articles.

METHODOLOGY

A search was conducted in PubMed/PubMed Central, EMBASE, and google scholar. From the 36 included articles, information on age, gender, bronchoscopy type, type of FB, location, history of choking, and time elapsed between aspiration and admission were extracted.

RESULTS

A total of 14,469 cases were evaluated. According to the findings, children under two accounted for more than 75% of FBAs. Nuts and seeds were the most common FBs in most countries, whereas plastic and metal objects had higher rates in Brazil, and calcified objects were more prevalent in Thailand. The right bronchus was the most frequent location, and rigid bronchoscopy was the most often utilized type of bronchoscope. In addition, a significant percentage of patients were referred to the emergency rooms in the first 12-24 h following the aspiration incident. Moreover, Asian patients reported more choking history, and Europeans had fewer witnesses of FBA.

CONCLUSIONS

There is a lack of standardized reporting systems and organized guidelines in pediatric FBA. To select the ideal time for endoscopies and create educational programs, a collaboration between experienced researchers, pediatric pulmonologists, radiologists, and otolaryngologists is required.

Ear, Nose, and Throat Foreign Bodies in Children: A Retrospective Study

Background: This study analyzed the presentation, characteristics, and management of foreign bodies in different age groups of pediatric patients with ear, nose, and throat foreign bodies. Methods: A retrospective study was performed using data from October 2012 to September 2020. A total of 1285 patients with ear, nose, and throat foreign bodies who were less than 12 years of age and who presented to the emergency room were included in this study. Their biographical data, clinical presentations, foreign body types and locations, and management outcomes were obtained from medical records and analyzed as three age groups (infancy: <2 years old; early childhood: 2–5 years old; and late childhood: 6–12 years old). Results: The early childhood group had the highest number of patients (n = 672; 52.2%). Throat was the most common location (59.2%), and bone was the most common type of foreign body. Among the children who visited our hospital, foreign bodies were actually found in only 657 patients (51.1%) and removed by an otolaryngologist in 625 (95.1%) cases. Conclusion: Our study could provide guidance for the diagnosis and management of pediatric patients who present to emergency departments with foreign bodies.

Management of Inedible Airway Foreign Bodies in Pediatric Rigid Bronchoscopy: Experience From a National Children's Regional Medical Center in China

The aim of this study is to analyze the characteristics of inedible airway foreign bodies in pediatric rigid bronchoscopy to facilitate the improvement of management and technology. This retrospective analytical study was performed from January 2017 to June 2020. All admissions of pediatric patients (age<18 years) with foreign-body aspiration diagnosis codes ([ICD]-10:T17 300, T17 400, T17 500 and T17 900) and procedure codes (33.7801) were extracted. Age, sex, preoperative history and imaging data, surgical records, length of hospital stay, reoperations and postoperative complications were included. Data were analyzed with SPSS 20. A total of 1237 patients were hospitalized and underwent rigid bronchoscopy. Forty-five (3.6%) patients with inedible foreign bodies in the airway were confirmed. There were no significant differences in sex, time of onset and length of hospital stay between the inedible and edible foreign body groups, except for age and a definite history of foreign body aspiration (P = 0.000). Coughing, wheezing and fever were the common clinical symptoms in all patients. The following were the common locations of inedible foreign bodies: right bronchus (22/45), left bronchus (18/45), trachea (3/45) and larynx (2/45). The most frequent inedible foreign bodies were parts of a pen (15/45), a light-emitting diode (7/45) and plastic parts of toys (6/45). Vocal cord injury and a laryngeal web were observed in one case each.

CONCLUSION

Rigid bronchoscopy is the method of choice for the removal of inedible foreign bodies. Adequate preoperative assessment to rely on CT scans, skillful operation techniques to avoid damaging and active management of postoperative complications are important for the success of the procedure.

Subtle Crucial X-Ray Findings in Pediatric Foreign Body Aspiration

Foreign body aspiration (FBA), with potentially life-threatening outcomes, is not unusual in the pediatric population. We report two cases of lobar bronchial radiolucent foreign bodies. Chest X-ray (CXR) showed a slight but significant finding of lobar emphysema without a significant mediastinal shift. This is possibly a key to suspecting foreign bodies. In the clinical field, a stepwise approach to detecting foreign bodies is commonly performed, from less invasive options such as CXR to computed tomography (CT). In this context, clinicians should scrupulously check CXRs when pediatric patients complain of respiratory symptoms, especially with potential FBA history.

Foreign body aspiration in a tertiary Syrian centre: A 7-year retrospective study

Background

Paediatric foreign body aspiration constitutes significant lethal sequela worldwide. This is the first descriptive Syrian study that aims to describe the epidemiology of foreign body aspiration in a tertiary centre in Syria.

Methods

This is a retrospective cohort study conducted at the Children's University Hospital, Damascus, from 2011 to 2018 during the Syrian crisis. The children underwent rigid bronchoscopy at Al Mouwasat University hospital, the only properly equipped hospital to perform paediatric rigid bronchoscopy in Damascus. We included all cases with complete medical records of children under the age of 13 years with positive bronchoscopy findings of foreign body aspiration. The records of patients were examined, and data extracted included physical examination, CXR reports, bronchoscopy reports, and complications. Statistical package for social sciences 25.0 program for Windows was used to report frequencies, percentages, means, medians, and standard deviations.

Results

Of 560 children diagnosed with foreign body aspiration, the peak incidence was at the age of 1–3 years 376 (67.2%). Most patients presented with an explicit history of inhalation 453 (80.9%). The most frequent clinical findings were dyspnoea 320 (57.1%), wheezing 308 (55%), and chest retraction 209 (37.35%). Hyperinflation 260 (46.4%) followed by pulmonary infiltration 197 (35.2%) were the most common abnormal radiological findings. Seeds 273 (48.8%) were the most frequent foreign body extracted by rigid bronchoscopy. The right main bronchus 255 (40.2%) was the most frequent site of foreign body lodgement. Lobar pneumonia 16 (2.8%) was the commonest complication of foreign body aspiration.

Conclusion

Foreign body aspiration is a major public health problem in Syria. The child's welfare must be our paramount concern. To prevent this accident, we should address a change in raising public health awareness with regards to appropriate food and eating habits. This would limit hazardous complications.

Diagnosis of foreign body aspiration with ultralow-dose CT using a tin filter: a comparison study

PURPOSE

Suspected airway foreign body aspiration (FBA) is a common event in paediatric emergency units, especially in children under 3 years of age. It can be a life-threatening event if not diagnosed promptly and accurately. The purpose of this study is to compare the diagnostic performance of an ultralow-dose CT (DLP of around 1 mGycm) with that of conventional radiographic methods (fluoroscopy and chest radiography of the airways) in the diagnosis of FBA children's airways.

METHODS

Retrospective cross-sectional study. Data from 136 children were collected: 75 were examined with conventional radiographic methods and 61 with ultralow-dose CT. Effective doses were compared using independent t tests. The results of bronchoscopy, if performed, were used in creating contingency 2 × 2 tables to assess the diagnostic performance between modalities. An extra triple reading of all images was applied for this purpose.

RESULTS

The effective doses used in the ultralow-dose CT examinations were lower compared with those in conventional methods (p < 0.001). The median dose for CT was 0.04 mSv compared with 0.1 mSv for conventional methods. Sensitivity and specificity were higher for ultralow-dose CT than those for conventional methods (100% and 98% versus 33% and 96%) as were the positive and negative predicted values (90% and 100% versus 60% and 91%).

CONCLUSION

Ultralow-dose CT can be used as the imaging of choice in the diagnosis of airway FBA in emergency settings, thereby avoiding concerns about radiation doses and negative bronchoscopy outcomes.