iCliniq Logo
HomeHealth articlesPediatric Surgerycongenital abnormalities
Respiratory health

Congenital Tracheal Stenosis - Pathophysiology, Symptoms, Diagnosis, and Treatment

Verified data
0

4 min read

Share

Outline

Congenital tracheal stenosis is a congenital disability causing narrowing of the trachea (windpipe) and breathing difficulties. Read the article for more details.

Written byDr. Elakya Sri. S. A

Medically reviewed byDr. Hussain Shabbir Kotawala

Published At May 2, 2023
Reviewed AtDecember 28, 2023

Introduction

Tracheal stenosis is a rare malformation causing partial airway obstruction and respiratory insufficiency. Tracheal stenosis occurs due to either injury (acquired tracheal stenosis) or birth defect (congenital tracheal stenosis). Congenital tracheal stenosis (CTS) causes breathing difficulties in children and often requires surgical correction.

What Is Trachea?

The trachea, or the windpipe, is a long tube about 4 inches long and less than one inch in diameter. The tube begins from the bottom of the larynx(voice box) and extends to the lungs. It transports air from and to the lungs.

What Is Congenital Tracheal Stenosis?

Congenital tracheal stenosis is a rare, life-threatening defect present at the time of birth. It leads to symptomatic airway obstruction and breathing difficulties in children because the trachea's cartilage support structure causes the airway's narrowing. It often occurs associated with cardiac abnormalities. The most common cardiac defect associated with congenital tracheal stenosis is pulmonary artery sling(PAS). Congenital tracheal stenosis usually manifests in the neonatal period or infancy. It is seen in 1 out of 64,500 cases. The exact cause of congenital tracheal stenosis is unknown.

What Is the Pathophysiology of Congenital Tracheal Stenosis?

Congenital tracheal stenosis occurs due to embryogenesis defects after the 8th week of gestation. The normal tracheal cartilage is C-shaped, and the back wall of the trachea is softer with muscles that allow the trachea to expand during breathing. In congenital tracheal stenosis, complete cartilaginous tracheal rings are present without the membranous portion due to the defect in embryogenesis. So the tracheal lumen is reduced in diameter to 2 to 3mm, causing an obstruction. The tracheal rings become prone to crusting.

What Are the Types of Congenital Tracheal Stenosis?

Cantrell and Guild have categorized congenital tracheal stenosis into three types. They are:

  • Generalized stenosis.

  • Funnel-like stenosis.

  • Segmental stenosis.

What Are the Symptoms of Congenital Tracheal Stenosis?

The symptoms of congenital tracheal stenosis are noticed shortly after birth. The affected infants and children show signs in the respiratory tract. The symptoms include the following:

  • Breathing difficulties.

  • Stridor (abnormal breathing sound).

  • Recurring pneumonia(inflammatory condition of the lungs).

  • Wheezing.

  • Cyanosis (bluish-purple skin discoloration due to insufficient oxygenation of the blood).

  • Chest congestion.

  • Persistent cough.

  • Apnea(temporal cessation of breathing).

  • Respiratory insufficiency.

  • Infants have difficulty in breastfeeding or bottle feeding.

  • Children may choke after eating.

Affected patients are divided into three groups based on their symptoms. They are:

  • Patients with minimal or no respiratory symptoms.

  • Patients with respiratory symptoms in the neonatal period.

  • Patients with respiratory symptoms in late infancy.

When to Suspect Congenital Tracheal Stenosis?

Congenital tracheal stenosis may be suspected in the following circumstances:

  1. When a child has difficulties in breathing or noisy breathing after birth.

  2. If an airway malformation is detected during pregnancy by ultrasound and fetal magnetic resonance imaging (MRI).

  3. When the child has respiratory symptoms like asthma but not responding to asthma treatment.

How to Diagnose Congenital Tracheal Stenosis?

Congenital tracheal stenosis is identified immediately after birth or during earlier childhood. Healthcare providers perform standard diagnostic procedures in the intensive care unit under anesthesia. The diagnostic procedures include:

  • Bronchoscopy - The healthcare provider inserts a thin, bendable tube into the mouth and passes it down into the trachea to examine the trachea functions and to detect any narrowing of the windpipe.

  • Microlaryngoscopy - It is performed with a small rigid metal tube called a laryngoscope inserted into the nose and down into the trachea to measure the narrowing of the windpipe to determine the specific treatment.

  • Computed Tomography(CT) Scan - Helps direct the windpipe's narrowing.

  • Fetal Ultrasound - Shows blood vessel abnormalities such as pulmonary artery sling, usually associated with congenital tracheal stenosis.

  • Pulmonary Function Test - To examine the response of the trachea when the patient is in an active state.

What Is the Treatment for Congenital Tracheal stenosis?

The treatment of congenital tracheal stenosis often requires surgical correction. The treatment options depend on the disease's severity, the child's age and weight, the extent of the stenosis, and associated cardiac abnormalities. The treatment options are:

  1. For children with congenital tracheal stenosis breathing well on their own, the healthcare team follows and ensures the airway's growth as the children age.

  2. For children with breathing difficulties, initial control of the airway is essential. It is achieved with intubation or mechanical ventilation.

  3. If adequate oxygenation is absent, extracorporeal membrane oxygenation(ECMO) and intraluminal tracheal stenting(to keep the trachea open temporarily) are used.

  4. Surgical resection or reconstruction of the trachea is the most effective type of management. The common open surgical procedures are:

  • Slide Tracheoplasty - This is a complex procedure to make the airway larger. The narrowed trachea is divided across the area where it is narrowed. A smaller portion of the upper and lower tracheal segments are cut and reattached, providing a wider airway but a little shorter than before. This technique can be modified for the treatment of bronchial stenosis and other tracheal malformations.

  • Laryngotracheoplasty - It is used to treat tracheal stenosis or subglottic stenosis. The narrowed diameter of the trachea is enlarged by inserting a piece of cartilage. The cartilage can be taken from the child’s rib or ear. It depends on the size of the cartilage needed to enlarge the trachea.

  • Cricotracheal Resection - This procedure involves the removal of scar tissue and ring-shaped cartilage of the larynx. Then the normal trachea is brought up to replace it.

  • Segmental Tracheal Resection - this procedure involves the removal of defective segments of the trachea, and the remaining ends of the trachea are sutured back to repair the airway.

Conclusion

Children with heart and lung abnormalities and genetic diseases such as Down syndrome are at a higher risk of having congenital tracheal stenosis. Management of patients with congenital tracheal stenosis is complex, requiring a multidisciplinary team including pediatricians, anesthesiologists, surgeons, and nursing staff. Each surgery has a different recovery time. Post-surgical care and follow-up after the surgery are important for the betterment of the children.

Listen to related tracks in our music library

Frequently Asked Questions

Congenital tracheal stenosis occurs when the windpipe is narrower than usual at birth. This narrowing can result from different factors, leading to reduced airflow. The condition involves a constriction in the trachea, impacting the normal development of the airway.

Detecting congenital tracheal stenosis during pregnancy is challenging, but specific imaging techniques, like fetal ultrasound, may provide some information. However, a definitive diagnosis is often made after the baby is born. Regular prenatal check-ups and specialized imaging may help identify potential indicators, allowing for appropriate medical planning and care upon the baby's arrival.

Diagnosing congenital tracheal stenosis in newborns involves employing specific methods, such as imaging studies and physical examinations. Doctors may use tests like X-rays, CT scans, or bronchoscopy to assess the structure and function of the trachea. These diagnostic approaches help confirm the presence of tracheal stenosis and determine its severity.

The success rate of surgery for congenital tracheal stenosis varies based on individual cases and the severity of the condition. Surgical interventions aim to widen the narrowed trachea and improve airflow. Success is often measured by the degree of improvement in respiratory function and the overall well-being of the patient post-surgery.

Depending on the severity of the condition, alternative treatments for congenital tracheal stenosis may be considered. These alternatives can include non-surgical approaches such as medical management or respiratory therapies. However, the choice of treatment is individualized, taking into account the patient's specific needs and health status.

The long-term prognosis for individuals with congenital tracheal stenosis post-surgery varies based on factors like the severity of the condition and the success of the intervention. Generally, with appropriate medical care and follow-up, many individuals experience improved respiratory function and quality of life.

Congenital tracheal stenosis may impact speech development if the condition affects the normal air flow through the trachea. Speech development relies on proper airflow for vocalization. In cases where tracheal stenosis hinders this process, speech therapy and intervention by specialists may be necessary to address any challenges and support the individual's speech development. Early identification and intervention can improve outcomes in managing speech-related concerns associated with congenital tracheal stenosis.

Support groups for families dealing with congenital tracheal stenosis provide a valuable network for sharing experiences, information, and emotional support. These groups, often facilitated by advocacy organizations, offer a platform for parents and caregivers to connect, learn, and navigate the conditions' associated challenges. Joining such support groups can provide practical insights, emotional assistance, and a sense of community for families facing the complexities of congenital tracheal stenosis.

Complications commonly associated with congenital tracheal stenosis may include respiratory difficulties, recurrent infections, and challenges in normal breathing patterns. These complications can vary in severity depending on the extent of tracheal narrowing. Prompt medical attention and appropriate interventions are essential to effectively managing and addressing these potential complications.

Congenital tracheal stenosis is typically not inherited straightforwardly. While there may be a genetic component, genetic and environmental factors often influence the condition. Genetic counseling can help families understand the potential risks and provide information about the likelihood of congenital tracheal stenosis passing from generation to generation.

Caring for a child with congenital tracheal stenosis at home involves ensuring a safe and supportive environment. This may include monitoring respiratory symptoms, administering prescribed medications, and following recommended medical interventions.

Advancements in congenital tracheal stenosis research focus on improving diagnostic techniques, treatment options, and overall understanding of the condition. Ongoing studies may explore innovative surgical procedures, alternative therapies, and potential genetic factors influencing the development of tracheal stenosis.

Nutrition is crucial in managing congenital tracheal stenosis by supporting overall health and aiding recovery after surgical interventions. A well-balanced diet promotes optimal growth, development, and respiratory function. Specialized dietary considerations may be advised based on individual needs and any underlying health issues.

Source Article IclonSourcesSource Article Arrow
Dr. Hussain Shabbir Kotawala from iCliniq
Dr. Hussain Shabbir Kotawala

General Surgery

Consult this doctor

Rate this article

Tags:

congenital abnormalities

Related topics

Acquired Subglottic Stenosis - Types, Causes, Signs, Symptoms and Treatment

Airway Reconstruction Surgery - How It Is Performed?

Cylindrical Bronchiectasis - Causes, Symptoms, Diagnosis, and Treatment

Congenital Lobar Emphysema - Incidence, Types, Causes, Symptoms, Diagnosis, and Treatment

Bronchogenic Cysts - Causes, Symptoms, Diagnosis, and Treatment

Pediatric Tracheostomy - An Overview

Ask your health query to a doctor online

Pediatric Surgery

*guaranteed answer within 4 hours

Trustpilot

Disclaimer: No content published on this website is intended to be a substitute for professional medical diagnosis, advice or treatment by a trained physician. Seek advice from your physician or other qualified healthcare providers with questions you may have regarding your symptoms and medical condition for a complete medical diagnosis. Do not delay or disregard seeking professional medical advice because of something you have read on this website. Read our Editorial Process to know how we create content for health articles and queries.