Patient-Related Factors Influencing Greater Occipital Nerve Blockade Response in Medication-Overuse Headache

This study focuses on understanding the factors that may affect the response to treatment in individuals with medication-overuse headache. This condition occurs when a person uses pain-relieving medication too often, causing the medicine to lose effectiveness and the headaches to become more frequent. The study specifically looks at patients who undergo a procedure called ultrasound-guided greater occipital nerve block, a treatment that involves injecting medication around the occipital nerves located at the back of the head to block pain signals. The goal is to identify pre-treatment patient characteristics that could influence the success of this procedure. During the study, participants will be asked about their use of pain-relieving medication for headaches over the past month. The primary outcome measured is the total number of days on which they used these analgesics. This information helps the researchers evaluate the effectiveness of the greater occipital nerve block in reducing the need for pain medication and potentially improving the quality of life for individuals with medication-overuse headache.