Sleep structure in neuropathic pain patients, psychological factors, brain connectivity, and the effect of pregabalin on sleep and pain

This research study is looking into people who suffer from ongoing nerve pain. Nerve pain can be very uncomfortable and can often make it difficult to sleep. The main goal of this study is to see how a medicine called pregabalin affects both their pain levels and their sleep patterns. This isn't a new medicine; it's already used, and this study aims to learn more about its effects in a real-world setting.

The researchers want to find out if pregabalin really helps reduce pain, and they'll measure this using simple rating scales. But they also want to understand the bigger picture: how does pain affect sleep? And how does pregabalin change sleep? To do this, they'll use special equipment to monitor sleep stages overnight. They'll also use brain scans (fMRI) to see if there are links between sleep problems and how different parts of the brain communicate with each other. They're even looking at whether sleep issues are connected to the size of a tiny part of the brain called the choroid plexus.

Beyond pain and sleep changes, the study will explore other effects of pregabalin. They'll use devices worn on the wrist and special rings to track daily body rhythms over a week, checking if the medicine influences these natural cycles. They'll also measure body temperature during sleep. By bringing all this information together, the study hopes to give us a much clearer understanding of how pregabalin works, especially regarding the complex relationship between nerve pain and sleep.