A 48-year-old man from Bangalore with a 3-year history of Meniere disease (confirmed by audiometry and caloric testing) now presents with severe, disabling vertigo attacks occurring 3–4 times per week despite 6 months of medical management with salt restriction, diuretics, and intratympanic gentamicin injections. He is unable to work and has had two falls at home. Audiometry shows stable hearing thresholds. What is the most appropriate next step in management?

Explanation

## Management of Refractory Meniere Disease ### Clinical Context: Failed Medical Therapy **Key Point:** This patient has **refractory (intractable) Meniere disease** — defined as persistent, disabling vertigo despite adequate medical management for ≥3 months. Surgical intervention is now indicated. ### Indications for Surgery in Meniere Disease | Criterion | Status in This Case | |-----------|---------------------| | **Failed medical therapy** | Yes — 6 months of conservative management | | **Frequency of attacks** | Yes — 3–4 per week (disabling) | | **Functional impairment** | Yes — unable to work, fall risk | | **Hearing status** | Stable (important for surgical planning) | | **Unilateral disease** | Implied (single-ear symptoms) | ### Surgical Options for Refractory Meniere Disease ```mermaid flowchart TD A[Refractory Meniere Disease]:::outcome --> B{Hearing Status?}:::decision B -->|Serviceable Hearing| C[Endolymphatic Sac Decompression]:::action B -->|Poor/Non-serviceable| D[Labyrinthectomy]:::action C --> E[Preserves hearing; 60–70% vertigo control]:::outcome D --> F[Ablates vestibular function; 90% vertigo control]:::outcome D --> G[Permanent hearing loss + imbalance in early postop period]:::urgent ``` ### Surgical Procedures Explained #### 1. **Endolymphatic Sac Decompression** (Preferred if hearing serviceable) - **Mechanism:** Relieves endolymphatic pressure by opening the sac or placing a shunt - **Success rate:** 60–70% achieve vertigo control - **Advantage:** Hearing is preserved - **Disadvantage:** Recurrence possible (10–15%); longer operative time - **Best for:** This patient (hearing is stable) #### 2. **Labyrinthectomy** (Destructive procedure) - **Mechanism:** Surgical ablation of vestibular end-organ (lateral semicircular canal) - **Success rate:** 90% vertigo control - **Disadvantage:** Permanent hearing loss in that ear; postoperative imbalance and oscillopsia - **Best for:** Non-serviceable hearing or failed conservative surgery #### 3. **Vestibular Neurectomy** - Selective section of vestibular nerve; preserves hearing - More technically demanding; requires neurosurgical expertise - Reserved for bilateral disease or failed other procedures ### Why This Patient Needs Surgery **Clinical Pearl:** Refractory vertigo with fall risk and work disability justifies surgical intervention. The stable hearing favors **endolymphatic sac decompression** over labyrinthectomy, as hearing preservation is a priority. ### Why Other Options Are Inadequate **High-Yield:** Simply escalating medical therapy (diuretics, betahistine, corticosteroids) in a patient who has already failed 6 months of treatment is not evidence-based and delays definitive management. Surgery is the standard of care for refractory disease. [cite:Hazarika ENT Ch 8; Park 26e Ch 27]