Patients with Parkinson's disease are at risk for pulmonary complications as a consequence
of both the underlying disease pathology and the side effects of medication. Degeneration
of the substantia nigra and subsequent loss of dopaminergic neurons may produce changes
in ventilatory parameters. Upper airway obstruction and chest wall restriction are
both common, and both may respond to levodopa. However, therapy for Parkinson's may
also contribute to pulmonary morbidity. Overtreatment with levodopa causes respiratory
dyskinesia that may be difficult to differentiate from complications of the disease
itself. Therapy with ergot derivatives may cause pleuropulmonary fibrosis. Pneumonia
resulting from the respiratory complications remains a significant cause of morbidity
and mortality in Parkinson's disease.
Parkinson's disease - dopaminergic - levodopa - chest wall rigidity - pulmonary complications