A 68-year-old man with a 10-year history of hypertension (BP 160/95 mmHg) presents to the emergency department with profuse epistaxis from the right nostril for the past 2 hours. He denies recent trauma, nasal surgery, or use of anticoagulants. Examination reveals blood oozing from the posterior nasopharynx. Anterior rhinoscopy shows no visible bleeding point. What is the most likely source of bleeding and the most appropriate initial management?

Explanation

## Posterior Epistaxis in Hypertensive Patient ### Clinical Context **Key Point:** Posterior epistaxis (bleeding from the nasopharynx, not visible on anterior rhinoscopy) in an elderly hypertensive patient is classically supplied by the **sphenopalatine artery (SPA)**, a terminal branch of the maxillary artery. ### Anatomical Basis The sphenopalatine artery enters the nasal cavity through the sphenopalatine foramen and supplies the posterior and inferior nasal cavity, septum, and lateral wall — the most common site of posterior epistaxis. Hypertension is a major risk factor for spontaneous posterior epistaxis due to chronic vascular stress. ### Management Algorithm ```mermaid flowchart TD A[Posterior epistaxis suspected]:::outcome --> B{Anterior rhinoscopy shows bleeding point?}:::decision B -->|Yes| C[Anterior packing or cautery]:::action B -->|No| D[Posterior epistaxis likely]:::outcome D --> E{Hemodynamically stable?}:::decision E -->|Yes| F[Posterior packing or endoscopic SPA ligation]:::action E -->|No| G[IV access, transfusion, ICU admission]:::urgent F --> H[Definitive: Endoscopic SPA ligation preferred]:::action G --> H ``` **High-Yield:** Posterior packing (Foley catheter or ribbon gauze) is the traditional first-line but carries morbidity (hypoxia, sinusitis, cardiac arrhythmias). **Endoscopic sphenopalatine artery ligation (ESPAL)** is now the gold standard in most centers — higher success rate (90–95%), lower morbidity, shorter hospital stay [cite:Bhattacharyya ENT textbook Ch Epistaxis]. ### Why Posterior and Not Anterior? - **Anterior epistaxis** (from Kiesselbach's plexus, Little's area): visible on anterior rhinoscopy, usually self-limited, managed with anterior packing or cautery. - **Posterior epistaxis** (from SPA): NOT visible on anterior rhinoscopy, blood flows into nasopharynx and oropharynx, requires posterior packing or endoscopic intervention. ### Management Steps 1. Secure airway, IV access, cross-match blood. 2. Confirm posterior source: posterior rhinoscopy or flexible endoscopy. 3. **First-line:** Posterior packing (Foley or ribbon gauze) with antibiotics to prevent sinusitis. 4. **Definitive:** Endoscopic SPA ligation (preferred) or, if unavailable, sphenopalatine ganglion block or external carotid artery ligation (rarely needed now). **Clinical Pearl:** Uncontrolled hypertension must be managed concurrently — target BP <140/90 mmHg to reduce rebleeding risk, but avoid aggressive lowering during acute bleeding (risk of stroke). ### Why Not the Other Options? - **Anterior ethmoidal artery ligation:** Supplies the superior and anterior nasal cavity; bleeding from this source IS visible on anterior rhinoscopy. This patient has posterior bleeding (nasopharyngeal source). - **Septal perforation:** Would be a structural finding on anterior rhinoscopy; no mention of perforation here. Cautery is not indicated for epistaxis from a perforation. - **Granulomatous disease:** No systemic symptoms, no granulomatous history. Corticosteroids are not first-line for epistaxis management.