Care of patients with Parkinson's disease in the operating department

Considerations for general anaesthesia in Parkinson's disease

Parkinson's disease is a common neurodegenerative disorder in the elderly which when present has a significant influence on surgical management. These patients necessitate additional perioperative and anaesthetic considerations across disease specific domains as well as in relation to the respiratory and cardiovascular systems. This brief review focuses on the factors which contribute to perioperative morbidity, including the use of medications that may exacerbate symptoms or adversely interact with treatments for Parkinson's disease. Recommended dosing practices to reduce complications during hospitalisation are covered. In addition, recent concerns regarding anaesthetic exposure in early childhood as a risk factor for the development of Parkinson's disease are discussed in light of data from animal models of anaesthetic neurotoxicity and epidemiological studies.

The preoperative neurological evaluation

Neurological diseases are prevalent in the general population, and the neurohospitalist has an important role to play in the preoperative planning for patients with and at risk for developing neurological disease. The neurohospitalist can provide patients and their families as well as anesthesiologists, surgeons, hospitalists, and other providers guidance in particular to the patient's neurological disease and those he or she is at risk for. Here we present considerations and guidance for the neurohospitalist providing preoperative consultation for the neurological patient with or at risk of disturbances of consciousness, cerebrovascular and carotid disease, epilepsy, neuromuscular disease, and Parkinson disease.

Perioperative medication withholding in patients with Parkinson's disease: a retrospective electronic health records review

BACKGROUND

Carbidopa-levodopa (Sinemet), the gold-standard treatment for Parkinson's disease, has a short half-life of one to two hours. When patients with Parkinson's disease are placed on NPO (nil per os, or nothing by mouth) status for surgery, they may miss several doses of carbidopa-levodopa, possibly resulting in exacerbation of Parkinson's disease symptoms. Clear guidelines regarding perioperative symptom management are lacking.

OBJECTIVES

The goals of this study were threefold: to measure the perioperative duration of the withholding of carbidopa-levodopa in patients with Parkinson's disease, to record the time of day surgeries were performed on these patients, and to record perioperative exacerbations of Parkinson's disease symptoms.

METHODS

We conducted a retrospective review of patient electronic health records at a Midwestern public medical center. After applying inclusion and exclusion criteria and evaluating the eligible records, we had a final sample of 89 separate surgical events for 67 discrete patients who had been diagnosed with Parkinson's disease, had undergone any type of surgery excepting Parkinson's disease surgeries, and were taking carbidopa-levodopa.

RESULTS

The median duration of carbidopa-levodopa withholding was 12.35 hours, with most surgical procedures (86%) starting at 9 AM or later. The most commonly reported exacerbation of Parkinson's disease symptoms was agitation or confusion.

CONCLUSIONS

For best symptom management, careful consideration should be given to scheduling surgery at the earliest possible time, administering medications as close to the patient's usual dosing schedule as possible, and providing nursing education about optimal medication management for this patient population.