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Sensory Restoration clinical trials

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NCT ID: NCT04533373 Recruiting - Breast Cancer Clinical Trials

Sensory Restoration After DIEP Flap Neurotization

Start date: December 1, 2020
Phase: N/A
Study type: Interventional

Common goals of breast reconstruction include obtaining satisfactory breast symmetry, softness, and appropriate size and shape. Advances in surgical techniques have prompted a new goal: achieving breast sensation after reconstructive surgery. This desire has led the surgical community to investigate operative techniques for achieving this goal. However, few studies have examined the effectiveness of breast sensory restoration. Sensory nerves are nerves responsible for sensation from skin. When a sensory nerve is cut, sensation is lost to the area supplied by the nerve. In the case of Breast reconstruction this involves the nerves supplying the skin overlying breast(s). 'Neurotization' refers to regeneration of the nerve after it has been cut. This means that the cut nerve is being repaired in order to restore its function. In Neurotization this repair is carried out using a new "source". In this case, the investigators want to restore function of the nerves that supply the skin overlying the breast(s). The investigators will be performing breast reconstruction using tissue from the patient's abdomen and transferring it to the chest wall to repair the mastectomy defect. Sensory function is restored by using the nerve that supplies the skin of this abdominal tissue (i.e the new "source") that is being transferred and attaching it to a nerve in the chest wall. The Avance® Nerve graft is a nerve graft material that has been produced by Axogen, Inc. The graft is made by processing donated human nerves. This graft is used during neurotization to bridge the gap and join the nerve from the abdominal tissue to the nerve in the chest wall. The use of the graft helps the body to attach these 2 nerves and improves nerve repair. When neurotization is done without the nerve graft there is a possibility that the surgeon may require extra nerve material to join the 2 nerves. Traditionally, in this case the surgeon would have to obtain a separate donor nerve from another part of the patient's body. This technique carries the risk of complications to part of the body that the separate donor nerve was obtained from - loss of sensation, infection or neuroma formation (an abnormal growth of nerve tissue that can cause pain, burning or tingling sensation, numbness). The Avance nerve graft avoids the need for the additional donor nerve and the possible complications associated with it. The Avance® Nerve Graft is currently being used in some women during breast reconstruction surgery, however the effectiveness of this procedure in improving the restoration of sensation has not been proven. Women undergoing reconstruction of one breast and at the same time using the women's own tissue as part of standard clinical care, may join.