Impact of Pectoral Versus Paravertebral Blocks on Pain and Physical Well-Being in Implant-Based Breast Reconstruction

This study compares two types of nerve block (local anesthetic injections near the chest) used during implant-based breast reconstruction surgery — a pectoral (chest muscle) block versus a paravertebral (spine-level) block — to see which better controls post-surgery pain. **You may be eligible if...** - You are 18 or older - You are scheduled for immediate breast reconstruction using an implant (one or both sides) - Your reconstruction is planned for therapeutic (cancer removal) or prophylactic (preventive) reasons - You can understand the study and provide informed consent **You may NOT be eligible if...** - You are having delayed reconstruction - You have an allergy or contraindication to local anesthetics - You have a history of radiation therapy to the chest area - You are severely obese (BMI over 40) - You have kidney problems, chronic pain conditions (like fibromyalgia), or pre-existing nerve damage Talk to your doctor to see if this trial is right for you.