What Are Bronchoscopy Risks in Relapsing Polychondritis?

If you have relapsing polychondritis (RP) with suspected airway involvement, deciding whether to undergo a bronchoscopy requires carefully weighing the benefits against the risks. Bronchoscopy is a vital tool that allows doctors to directly inspect your airway, sample tissues, diagnose infections, or treat blockages (such as by placing a stent). However, because RP can inflame and weaken the cartilage in your trachea (windpipe) and bronchi, placing a scope inside can carry significant risks, particularly if your airway is already severely narrowed ^[1].

Your individual risk depends heavily on the severity of your RP, the location of the airway narrowing, and the exact type of procedure planned.

🚨 EMERGENCY WARNING: If you experience rapidly worsening shortness of breath, high-pitched breathing (stridor) at rest, blue or gray lips, an inability to speak in full sentences, or fainting, seek emergency medical care immediately. Do not wait for a scheduled procedure, CT scan, or breathing test.

Understanding the Risks

In one retrospective study of 82 patients with RP who underwent flexible bronchoscopy, approximately 20% experienced what the researchers defined as a severe adverse event ^[2]. These events included needing urgent treatment for airway spasms, requiring escalation of respiratory support, or emergency hospital admission. While this number reflects findings from a specific study and is not your exact personal risk, it highlights why careful planning is essential.

The primary risks include:

• Dynamic Airway Collapse (Tracheobronchomalacia): RP can degrade the supportive cartilage rings in your airway. This can leave the airway weak and prone to collapsing when you breathe—a condition known as tracheobronchomalacia ^[1][3]. Medications used for sedation can sometimes worsen this collapse by relaxing your muscles ^[2].
• Airway Spasms and Swelling: Passing a scope through an inflamed airway can irritate the tissues, potentially triggering a bronchospasm (a sudden squeezing of the airway muscles) or acute swelling that temporarily worsens your breathing ^[4][1].
• Anesthesia and Ventilation Challenges: Sedation can reduce your natural drive to breathe. If your airway is severely narrowed, losing your spontaneous breathing effort can lead to a dangerous drop in oxygen levels ^[5]. In a crisis, placing an emergency breathing tube (intubation) or using a breathing mask can be very difficult ^[5][6].
• Procedure-Specific Risks: A standard flexible bronchoscopy used only to look around carries a low risk of physical injury. However, therapeutic procedures—such as taking biopsies, using rigid metal scopes, or placing airway stents—carry higher risks of bleeding, tearing (perforation), or complications from the stent itself (like mucus plugging or migration) ^[1][7].

Tools to Help Plan Your Procedure

Because of the potential risks, your care team may use other tests to help plan the safest approach. These tests do not replace bronchoscopy if direct inspection or treatment is needed, but they provide critical information:

• Dynamic CT Scans: A specialized CT scan captures images of your neck and chest while you inhale and exhale. This can reveal structural narrowing and dynamic airway collapse ^[1][8]. However, CT scans involve radiation and cannot sample tissues or directly show the health of the airway lining.
• Pulmonary Function Tests (PFTs): These breathing tests measure your lung capacity. In the study of 82 patients mentioned above, those with a low Forced Vital Capacity (FVC) or a low peak expiratory flow were at a higher risk for severe complications during bronchoscopy ^[2]. While PFTs are effort-dependent and can be influenced by other factors, they help the team gauge your risk level before the procedure.

How Specialized Teams Maximize Safety

If a bronchoscopy is necessary, the procedure should be meticulously planned to manage potential complications ^[1][2].

• An Experienced Multidisciplinary Team: Depending on the complexity of your case, your procedure should be managed at a specialized center. The team may include an interventional pulmonologist (an expert in complex airway procedures), a rheumatologist, an anesthesiologist skilled in managing difficult airways, and sometimes an ear-nose-throat (ENT) or thoracic surgeon ^[9].
• Individualized Rescue Plans: The team will prepare emergency backup strategies tailored to your specific anatomy. This includes having equipment ready for a surgical airway (tracheostomy) or rigid bronchoscopy if standard intubation fails ^[9][2]. Keep in mind that a tracheostomy is placed in the neck and may not bypass a collapse if the narrowing is further down in your lungs.
• ECMO as an Exceptional Backup: In rare, highly complex cases, specialists at advanced centers may use ECMO (extracorporeal membrane oxygenation) ^[6][10]. ECMO is a machine that temporarily pumps and oxygenates your blood. It is a major, high-risk intervention used only as a last resort or planned bridge to keep a patient safe when intubation is deemed too dangerous. It is not a routine safety net available at all hospitals.