J34.8210

Clinical Causes: Congenital weakness or abnormal development of nasal cartilage Trauma or injury to the nose, such as fractures or blunt force Aging-related loss of cartilage support and tissue elasticity Previous nasal surgeries that may have compromised the nasal structure Chronic nasal inflammation or conditions that weaken nasal tissues Nasal polyps or other growths that distort normal anatomy

Key Symptoms: Visible narrowing or collapse of the nostrils during inhalation Difficulty breathing through one or both nostrils Nasal congestion or obstruction Noisy breathing, especially during inhaling Nasal breathing discomfort or fatigue Potential for recurrent sinus infections due to impaired airflow

Diagnosis Path: Usually, diagnosis involves a thorough physical examination by a healthcare professional. The clinician may observe the external nasal structure and ask the patient to breathe deeply while inspecting the nose. Additional tools such as nasal endoscopy or imaging studies like CT scans can provide detailed views of nasal anatomy. Sometimes, a Valsalva maneuver or modified Cottle’s test might be used to assess the stability of the external nasal valve and determine its role in nasal obstruction.

Treatment Protocols: Treatments for external nasal valve collapse aim to restore nasal support and improve airflow. Options include: - **Non-surgical methods:** These may involve the use of nasal strips or external supports to temporarily improve airflow. - **Surgical interventions:** Procedures such as cartilage grafting, lateral wall stabilization, or rhinoplasty may be recommended to reinforce the nasal structure. The choice of procedure depends on the severity of the collapse and individual patient factors. - **Post-treatment care:** Postoperative follow-up and possibly nasal physiotherapy or exercises are essential to ensure proper healing and long-term results.