Quantification of opioid dependence and abuse prevalence in the United States between 2017 and 2018.

Objectives: To quantify the prevalence of opioid drug dependence and abuse in United States between 2017 and 2018 and identify which opioid molecules are associated with a higher level of dependence and abuse.

Design: National Survey on Drug Use and Health (NSDUH) data for 2017 and 2018 have been extracted. The variables related to painkillers were studied, the most important ones were selected, and several variable crosses were made.

[Movement disorders units and management of motor fluctuations in advanced Parkinson's disease].

Introduction: Advanced Parkinson's disease (PD) entails complications, such as motor fluctuations. In Spain, medical attention for such cases is often provided in movement disorder units (MDU).

Aim: To gain further knowledge of the diagnostic resources and therapeutic approach of MDU.