A 48-year-old woman undergoes CT chest for evaluation of recurrent pneumonia. Imaging reveals a bronchiectatic cavity in the posterior segment of the right upper lobe with recurrent infections despite antibiotic therapy. The patient has no systemic disease and is otherwise healthy. Pulmonary function tests show FEV₁ of 72% predicted. What is the most appropriate next step in management?

Explanation

## Clinical Context A patient with localized bronchiectasis confined to a single bronchopulmonary segment, recurrent infections despite medical therapy, and preserved pulmonary function is a candidate for surgical resection. ## Bronchopulmonary Segment Anatomy **Key Point:** The right upper lobe comprises three independent bronchopulmonary segments: - **Apical segment** — supplied by apical bronchus and artery - **Posterior segment** — supplied by posterior bronchus and artery - **Anterior segment** — supplied by anterior bronchus and artery Each segment has its own bronchus, pulmonary artery branch, and pulmonary vein drainage, allowing selective segmental resection without compromising adjacent segments. ## Surgical Decision-Making | Feature | Lobectomy | Segmentectomy | |---------|-----------|---------------| | **Extent** | Removes entire lobe (3 segments) | Removes single/multiple segments only | | **FEV₁ loss** | ~25–30% | ~10–15% | | **Indications** | Multisegmental disease, cancer, extensive bronchiectasis | Localized single-segment disease | | **Lung preservation** | Significant loss of function | Maximal preservation | | **Technical difficulty** | Standard approach | Requires precise segmental dissection | **High-Yield:** When disease is confined to ONE bronchopulmonary segment and the patient has borderline pulmonary function (FEV₁ 72%), segmentectomy is preferred over lobectomy because it preserves lung parenchyma and maintains better postoperative function. ## Why Posterior Segmentectomy is Correct ```mermaid flowchart TD A[Localized bronchiectasis in posterior segment]:::outcome --> B{Multisegmental involvement?}:::decision B -->|Yes| C[Lobectomy]:::action B -->|No| D{Pulmonary function adequate?}:::decision D -->|FEV₁ < 50%| E[Medical management only]:::action D -->|FEV₁ > 50%| F[Segmentectomy]:::action F --> G[Posterior segment resection]:::outcome ``` **Clinical Pearl:** In patients with borderline FEV₁ (60–75%), segmentectomy is preferred because: 1. It removes only the diseased segment 2. Apical and anterior segments remain functional 3. Postoperative FEV₁ loss is minimized (~10–15% vs. 25–30% with lobectomy) 4. The patient maintains better exercise tolerance and quality of life **Mnemonic:** **SEGMENT SAVED = FUNCTION SAVED** — Preserve healthy segments when disease is localized.