A 58-Year-Old Man With Episodic Hypercapnic Respiratory Failure

Area of Science:

• Neurology
• Oncology

Background:

• A 58-year-old man with a history of castrate-resistant prostate carcinoma with metastases presented with progressive neurological symptoms.
• The patient had undergone multiple prior treatments including bicalutamide, docetaxel, abiraterone, and was on leuprolide therapy.

Observation:

• The patient experienced recurrent, prolonged episodes of loss of consciousness and hypercapnic respiratory failure.
• These episodes necessitated intubation and intensive care unit admission with invasive ventilatory support.
• Associated symptoms included vertigo, dysphagia, and hypophonia, progressing over two months.

Findings:

• The paroxysmal episodes persisted despite mechanical ventilation, requiring a set minimum respiratory rate.
• The patient's presentation suggests a potential paraneoplastic or metastatic neurological complication.

Implications:

• This case underscores the importance of considering rare neurological complications in patients with advanced, metastatic cancer.
• Further investigation is warranted to elucidate the exact mechanism of these neurological deficits and optimize management strategies.