This clinical trial aims to evaluate the effectiveness of an ultrasound-guided nerve block technique as the sole anesthetic method for patients undergoing outpatient umbilical hernia surgery. The procedure, called rectus sheath block (RSB), involves injecting local anesthetic near the abdominal muscles to reduce pain during and after surgery. The study will compare two groups of adult patients: one receiving the nerve block with a medication called clonidine added to the anesthetic solution, and the other receiving the same block without clonidine. Clonidine may help improve pain control and reduce the need for additional pain medications. By analyzing pain scores, recovery quality, and potential side effects, the study seeks to determine whether the use of clonidine in this context is safe, cost-effective, and beneficial for patient recovery. Participants will answer questionnaires about their pain and recovery during the first 48 hours after surgery.
Adults aged 18 to 65 years;
Both male and female participants;
ASA physical status I or II (American Society of Anesthesiologists classification);
Scheduled for elective ambulatory umbilical hernia repair;
Refusal or inability to provide written informed consent;
Cognitive or psychiatric disorders that impair comprehension or adherence to the study protocol;
Known allergy or hypersensitivity to local anesthetics, clonidine, opioids, nonsteroidal anti-inflammatory drugs (NSAIDs), or other analgesics;
Participation in another clinical trial within the previous 30 days;