Persistent cough and failure to thrive: a presentation of foreign body aspiration in a child with asthma

Role of Virtual Bronchoscopy in Evaluation of Suspected Foreign Body in Children's Tracheobronchial Tree

Introduction  The presence of foreign bodies in the airways remain a diagnostic challenge to healthcare professionals. They can become life threatening emergencies that require immediate intervention or go unnoticed for weeks and even months. Prevention is best but early recognition remains a critical factor in treatment of foreign body inhalation in children. Objective  To study the diagnostic advantages of virtual over rigid bronchoscopy in the evaluation of children with suspected foreign body in the tracheobronchial tree and plan for early management. Methods  A crossectional study conducted at a tertiary care hospital & medical college in India. A total 24 patients (0-12-years-old) who presented with complaints of sudden onset of coughing, choking, and breathing difficulty were included during the 2-year duration, from January 2018 to December 2019. All patients underwent virtual and rigid bronchoscopy. Results  In 8 patients, foreign bodies detected by virtual bronchoscopy were confirmed by rigid bronchoscopy. There was one case in which virtual bronchoscopy showed no foreign body, but rigid bronchoscopy detected it. In 15 cases virtual and rigid bronchoscopy did not show foreign bodies. The sensitivity, specificity, positive and negative predictive value of virtual bronchoscopy were 88.88, 100, 100, and 93.75%, respectively. Conclusions  Virtual bronchoscopy is less invasive and does not require general anesthesia but cost and availability are limitations. It can be used as method of investigation in children with suspected foreign body aspiration.

Review of tracheobronchial foreign body aspiration in the South African paediatric age group

Children, and in particular young children under the age of three, are the most vulnerable for aspiration and ingestion of foreign bodies (FBs). The Red Cross War Memorial Children's Hospital in Cape Town is the only children's hospital in South Africa and is unique in having a dedicated trauma unit for children under the age of 13 as part of its institution. Core activities of Childsafe South Africa (CSA), located at the hospital, are data accumulation and interpretation, development of educational programmes, health inculcation and advising in legislation involving child health. To achieve this task, CSA works in close co-operation with government, industry, non-governmental and community predicated organisations, community groups and individuals. A database of all children treated for trauma at CSA has been maintained since 1991; it currently contains detailed information of over 170,000 injuries in children under the age of 13. This review consists of a literature review combined with data from our database and aims to provide information on our experiences with tracheobronchial aspiration of FBs in children.

A time series observation of Chinese children undergoing rigid bronchoscopy for an inhaled foreign body: 3,149 cases in 1991-2010

BACKGROUND

In China, tracheobronchial foreign body (TFB) aspiration, a major cause of emergency episode and accident death in children, remains a challenge for anesthetic management. Here, we share our experience and discuss the anesthetic consideration and management of patients with TFB aspiration.

METHODS

This was a single-institution retrospective study in children with an inhaled foreign body between 1991 and 2010 that focused on the complications following rigid bronchoscopy (RB). Data including the clinical characteristics of patients and TFB, anesthetic method, and postoperative severe complications were analyzed by different periods.

RESULTS

During the 20-year study period, the charts of 3149 patients who underwent RB for suspected inhaled TFB were reviewed. There were 2079 male and 1070 female patients (1.94:1). A nut (84%) was the most commonly inhaled object. The study revealed a 9% (n = 284) overall rate of severe postoperative complications related to severe hypoxemia, laryngeal edema, complete laryngospasm, pneumothorax, total segmental atelectasis, and death with incidences of 3.2%, 0.9%, 1.3%, 0.3%, 0.3%, and 0.1%, respectively. The rates of preoperative airway impairment, negative findings of TFB, and adverse postoperative events have been on the rise in the past 5 years.

CONCLUSIONS

The survey results confirmed that hypoxemia remains the most common postoperative complication in different periods. Both controlled ventilation and spontaneous ventilation were effective during the RB extraction of the foreign body at our hospital in the modern technique period. An active respiratory symptom was commonly seen in the groups with negative findings.

Mothers' knowledge about foreign body aspiration in young children

OBJECTIVE

To evaluate parents' knowledge regarding foreign body aspiration (FBA) and determine the factors that are associated with lack of knowledge.

METHODS

An 8-item questionnaire regarding knowledge of FBA was developed and distributed at regular check-ups for children younger than 24 months old.

RESULTS

Out of the 1766 questionnaires distributed, 1603 were recovered and most of them (1539) were answered by mothers. After omitting 49 questionnaires with incomplete data, 1490 questionnaires answered by mothers were analyzed. Only 4.3% [95% CI 3.3-5.3] of mothers did not recognize a small toy as a cause of FBA, while 20.2% [95% CI 18.2-22.2] did not know that peanuts and other nuts can be causes of FBA, and 48.1% [95% CI 45.5-50.6] did not know that they should not give peanuts to a child younger than 3 years old. Regarding clinical signs, 27.7% [95% CI 25.4-30.0] and 41.8% [95% CI 39.3-44.3] of mothers did not know that sudden choking and sudden coughing were symptoms suggesting FBA, respectively. Being a mother with a child younger than 12 months old and being a mother with a first child were independent risk factors for lack of knowledge about FBA, regardless of the age of the mother.

CONCLUSIONS

A substantial number of mothers lack knowledge regarding FBA. To prevent FBA and to make timely diagnoses, parents, especially mothers with children younger than 12 months old and mothers with a first child should be given adequate information.

Diagnosis and treatment of tracheobronchial foreign bodies in 1024 children

OBJECTIVE

This study sought to summarize the experience of diagnosis and treatment of tracheobronchial foreign bodies in children to effectively reduce complications and mortality.

METHODS

The medical records of 1024 pediatric patients admitted to our hospital from January 1997 to September 2011 and diagnosed with clinically suspected tracheobronchial foreign body aspiration were retrospectively analyzed.

RESULTS

Of the 1024 children patients, 674 were boys (65.8%) and 350 girls (34.2%). Two died of respiratory and circulatory failure (foreign bodies detected upon bronchoscopy but not retrieved) before surgery, 65 patients underwent direct bronchoscopic removal of foreign bodies due to their critical status, and 957 received chest radiographs and chest fluoroscopy or multidetector spiral computed tomographic scans (941 positive). Foreign bodies were expectorated before surgery in 3 cases. There were 953 cases of bronchoscopically proven airway foreign body aspiration, with a diagnostic accuracy of 94.5%. Ninety-eight foreign bodies were lodged in the main bronchus and/or bilateral bronchi, 506 in the right main bronchus, and 349 in the left main bronchus. Atelectasis was noted in 42 patients, including 11 with pulmonary consolidation, whose lungs were re-expanded by endobronchial lavage and sputum aspiration. In 3 patients with bronchiectasis, conservative treatment following foreign body removal was followed by no improvement, and pulmonary lobectomy was performed. Foreign bodies were successfully extracted at the first bronchoscopic attempt in 948 cases, accounting for 99.7% of the total. However, 3 patients had to undergo another bronchoscopy to remove the foreign bodies. The most common types of foreign bodies were peanuts, melon seeds, and beans.

CONCLUSIONS

Timely accurate diagnosis and treatment of tracheobronchial foreign bodies in children can avoid delay in treatment and effectively reduce complications and mortality.

Foreign body aspiration in children: a nationwide survey in Japan

BACKGROUND

Foreign body aspiration (FBA) is a common cause for a respiratory emergency in young children and can be a life-threatening event. We, therefore, conducted the first nationwide survey in Japan.

METHODS

We asked doctors of 261 tertiary hospitals across the nation to fill out a case card of FBA-diagnosed cases they had experienced for the past 2 years. In the case card, age and gender of the patients, elapsed time until being referred to the hospital, presenting symptoms, previous diagnosis, suspected aspiration episode, type and location of aspirated foreign body, and consequences were inquired. This retrospective survey was carried out during 21 months, since January 2005 through September 2006.

RESULTS

Replies from 169 hospitals (64.8%) revealed that 163 cases of FBA had been treated in 114 hospitals during the past 2 years. Median age of cases was 1 year (2 months to 15 years), and 66.5% were male. Only 50.9% of the cases were referred to hospitals within 24h. Comparing these early-diagnosed cases, children with delayed diagnosis had similar age and sex distribution. In respect of presenting symptoms, characteristic ones such as choking or dyspnea were observed significantly more often in the early-diagnosed cases, whereas significantly predominant symptoms in children with delayed diagnosis were non-specific ones like coughing and wheezing (both, p<0.05). Although significantly more cases with early diagnosis reported suspected aspiration episodes (p<0.05), even in the delayed diagnosis group more than half cases (65%) had suspected episodes as well. Severe consequences occurred in seven cases (4.3%): four cases of irreversible hypoxic brain damage and one death due to multiorgan failure in the early diagnosis group; one bronchiectasis and one recurrent pneumonia in the delayed diagnosis group.

CONCLUSIONS

Characteristics of FBA among children in Japan were not substantially different from the reports from other countries. Suspected episodes were important, and there were some differences in presenting symptoms between early and delayed diagnosis cases. However, there are still no key sings to make a prompt diagnosis. In order to prevent FBA and make a timely diagnosis, continuous and extensive educational programs should be provided.

The relationship between psychogenic cough and the diagnosis and misdiagnosis of asthma: a review

The differential diagnoses of persistent nonproductive cough include numerous pulmonary and nonpulmonary organic disorders as well as functional illnesses. Many diseases can cause cough, and several studies have shown asthma among the most common etiologies associated with chronic cough in adult nonsmokers, as well as children. Psychogenic cough and its relationship to asthma and other asthma-like illnesses is complex since distinct maladies with similar features may coexist individually or in combination in any given patient. While chronic cough may occur as a sole presenting manifestation of bronchial asthma in all age groups, recent findings suggest that most children with persistent cough without other respiratory symptoms do not have asthma. Since several organic, as well as functional diseases, may present with persistent cough as their sole manifestation in either adults or children, cough should not be used as a single or major determinant to diagnose and treat asthma, especially when empirically focused therapy trials fail. Given the range of illnesses causing cough, no single management guideline can be expected to be universally effective.

Late diagnosis of foreign body aspiration in children with chronic respiratory symptoms

BACKGROUND

Children with undiagnosed and retained foreign bodies (FBs) may present with persistent respiratory symptoms. Delayed diagnosis is an important problem in developing countries and several factors affect the delay.

OBJECTIVES

To investigate, the incidence of clinically unsuspected foreign body aspiration (FBA) in our flexible bronchoscopy procedures, the causes resulting in late diagnosis of FBA, and the incidence of the complications of FBA according to elapsed time between aspiration and diagnosis.

METHODS

We reviewed the records of all the patients who underwent flexible bronchoscopy between 1997 and 2004 in our clinic. Patients with FBA were identified and their medical records were reviewed.

RESULTS

During the study period, 654 children underwent flexible bronchoscopy; 32 cases (4.8%) of FBA were identified. Median age of patients was 29.5 months at presentation with a median symptomatic period of 3 months. None of the patients had a history of FBA. The most common misdiagnosis was bronchitis. Flexible bronchoscopy was performed to these patients within 1 week following presentation. In 87% of the patients (n=28), FBs were in organic nature. Patients were followed up for 21.0 months after removal of the FBs. Fifty-three percent (n=17) of the patients had a complete remission after bronchoscopic removal of the FBs. However, nine (28.8%) patients had chronic respiratory problems and six patients (18.8%) developed bronchiectasis.

CONCLUSIONS

Atypical or prolonged respiratory symptoms should alert the physician and clinical and radiological findings should be carefully evaluated for a possible FBA. Delay in diagnosis and treatment of FBA should be avoided to prevent complications.