EN4.40 | Hoarseness of Voice — Summary & Reflection

KEY TAKEAWAYS

Hoarseness of voice is a change in voice quality caused by disruption of vocal fold vibration. The >3 weeks rule is inviolable: persistent hoarseness in an adult mandates laryngoscopy to exclude malignancy. The history must document duration, character, associated alarm symptoms (dysphagia, stridor, otalgia, weight loss, neck mass), and risk factors (smoking, alcohol, professional voice use, reflux). Laryngoscopic examination — indirect or fibre-optic — is the cornerstone investigation. The major causes span inflammatory (acute/chronic laryngitis), benign structural (vocal cord nodules — bilateral at the anterior one-third/posterior two-thirds junction; polyp — unilateral; Reinke's oedema — bilateral entire cord, smoking/hypothyroid), neurological (vocal cord palsy — the left RLN with its longer intrathoracic course around the aortic arch is the more vulnerable nerve), and neoplastic (glottic carcinoma — earliest symptom is hoarseness, poor lymphatics, excellent prognosis at T1; supraglottic — late hoarseness, early nodal spread). Management is cause-specific: voice therapy for nodules, microlaryngoscopy for polyps, treat the underlying cause for palsy with medialization for persistent cases, and primary radiotherapy for T1 glottic carcinoma. The posterior cricoarytenoid is the sole abductor of the vocal cords and is the critical muscle whose paralysis in bilateral RLN palsy produces airway obstruction.

REFLECT

Consider the scenario of a 55-year-old male tobacco farmer who presents to a rural health centre with six weeks of hoarseness. The health worker attributes this to 'throat infection' and prescribes antibiotics. He returns three months later with stridor and a fixed cord on laryngoscopy — T3 glottic carcinoma. Reflect on these questions: At what point in this patient's journey was the pivotal diagnostic opportunity missed? What single clinical rule, applied correctly, would have triggered the right referral? Now think about your future practice in a primary care or district hospital setting where an ENT specialist may not be immediately available — what is YOUR threshold for referral, and what information would you gather before sending the patient? How does this case illustrate the population-level importance of the >3 weeks rule as a public health gate, not just a clinical heuristic?