A 52-year-old male with COPD (FEV₁ 28% predicted) presents to the ICU with acute exacerbation and severe hypoxemia (SpO₂ 82% on 15 L O₂). After 2 hours of non-invasive ventilation failure, intubation is planned. During rapid sequence induction with propofol and succinylcholine, the patient develops severe bronchospasm immediately post-intubation, with peak airway pressures rising to 65 cm H₂O and SpO₂ dropping to 71%. Breath sounds are diminished bilaterally. What is the most appropriate immediate management?

Explanation

## Acute Bronchospasm Post-Intubation in COPD Patient ### Clinical Recognition The patient has acute bronchospasm triggered by intubation in a COPD patient — a known risk factor. The hallmark signs are: - Sudden rise in peak airway pressures (>60 cm H₂O) - Acute desaturation post-intubation - Diminished bilateral breath sounds (not unilateral — rules out mainstem intubation or pneumothorax) - Timing: immediate post-intubation ### Immediate Management Algorithm ```mermaid flowchart TD A[Acute bronchospasm post-intubation]:::outcome --> B[Disconnect ventilator]:::action B --> C[Manual ventilation with 100% O₂]:::action C --> D[Slow respiratory rate<br/>Allow time for exhalation]:::action D --> E[IV medications]:::action E --> F[Salbutamol 100-200 mcg IV bolus]:::action E --> G[Hydrocortisone 100 mg IV]:::action E --> H[Magnesium sulphate 2 g IV]:::action F --> I[Reassess airway pressures<br/>and SpO₂]:::decision G --> I H --> I I -->|Improving| J[Continue supportive care]:::action I -->|Worsening| K[Consider esmolol or ketamine]:::action ``` ### Key Point: **The goal is to reduce airway resistance and allow adequate exhalation.** Disconnecting the ventilator prevents barotrauma and allows manual control of inspiratory/expiratory ratio. ### High-Yield: - **Manual ventilation** with slow rate (8–10 breaths/min) and prolonged expiratory time is essential — allows trapped air to escape - **IV salbutamol** (100–200 mcg bolus) works faster than nebulized in acute crisis - **IV hydrocortisone** (100 mg) reduces airway inflammation - **Magnesium sulphate** (2 g IV) is a smooth muscle relaxant; synergistic with β₂-agonists ### Clinical Pearl: **Do NOT suction aggressively** — this can worsen bronchospasm by mechanical stimulation. Gentle suctioning only if secretions are visible. ### Warning: ~~Cricothyrotomy~~ is not indicated — the airway is already secured. ~~Extubation~~ risks loss of airway control in a hypoxemic patient. ~~Aggressive suctioning~~ worsens bronchospasm. ### Mnemonic: **SAVE** — Slow ventilation, Administer IV drugs, Ventilate manually, Extend expiration time.