[Polymyositis with ventilatory incapacity and respiratory insufficiency]

Area of Science:

• Neurology
• Pulmonology
• Rheumatology

Background:

• Inflammatory myopathies, including polymyositis (PM), cause proximal muscle weakness.
• Respiratory complications, such as ventilatory incapacity (VI), are significant causes of morbidity and mortality in these conditions.
• Pulmonary involvement in PM typically includes interstitial lung disease, aspiration pneumonia, or VI.

Observation:

• Mechanical ventilation is rarely reported for PM patients with VI but without lung disease.
• This report focuses on a patient diagnosed with polymyositis and VI solely due to muscle weakness.

Findings:

• The patient required mechanical ventilation for management of VI.
• Successful weaning from the mechanical ventilator was achieved after 4 months of therapy.

Implications:

• This case highlights the potential efficacy of mechanical ventilation in managing severe VI in polymyositis patients.
• It suggests that respiratory support can be a viable therapeutic option even in the absence of primary lung disease.
• Further research into respiratory management strategies for inflammatory myopathies is warranted.