Active clinical trials for "Cicatrix"

It is hypothesized that the inhibition of estradiol production by letrozole may interfere with physiological effects of progesterone necessary to maintain the pregnancy. There is no reference treatment of cesarean scar pregnancy (CSP) as the limited number of cases precludes the extrapolation of results. In our center we successfully use two-step treatment with methotrexate (MTX) followed by hysteroscopic removal of products of conception (POC). The time in between is needed to achieve a decrease in the trophoblast's vital potential (B-hCG fall) and its vascularization. Additional administration of letrozole could further reduce the vital potential of the pregnancy, eliminating the need for another dose of MTX, resulting in faster healing and lower rate of complications.

Test the ability of botulinum toxin type A, when injected into the surgical incision at the time of surgery, to decrease postoperative scar scores compared to control (normal saline) in a double-blinded randomized control trial. Investigate the mechanism of BTXa effects of scar formation by measuring micro RNA profiles at two time points in the healing process.

While the literature tends to support the use of laser therapy in the management of burn scars, there is a definite lack of appropriately powered, randomized controlled trials. Laser therapy can be quite expensive when compared to other treatment modalities for burn scars, and while promising, its true usefulness has yet to be conclusively demonstrated. For this reason, our assessing the effects of fractional vascular lasers on burn scars. It has been hypothesized that the fractional vascular lasers work on mature scars to decrease scar formation, and the fractional laser works on scar that is quiescent to promote remodelling. The retexturing/ resurfacing of the laser theoretically can decrease the visibility of the mesh pattern created by meshed split thickness skin graft). Objective: To determine the benefit of fractional vascular laser treatment in improving burn scar height, texture, vascularity and pliability in late burn scars.

The Research Question of the present study is the following: in a population of men and women presenting facial dermal tissue defects (scars, depressed plaques, and lipodystrophy defects) will cross-linked hyaluronic acid (Auralya®) significantly decrease and / or improve their appearance, results observed after 4, 8 and 12 weeks?

The Research Question of the present study is the following: in a population of men and women presenting dermal tissue defects (scars, atrophic scars, depressed plaques, and lipodystrophy defects) will Plenhyage® significantly improve the appearance of treated areas, results observed after 4, 8 and 12 weeks?

The purpose of this study is to compare the effectiveness of the ePrime fractional radiofrequency system to the 1550-nm fractional photothermolysis system (Fraxel) in the ability to improve acne scar appearance.

The purpose of this study is to determine the effects (good or bad) of pulsed dye laser treatment in burn scar height, texture, redness and pliability in acute burn injury.

The brow lift is a surgical procedure that has been practiced for several decades. A typical indication is brow ptosis, which can be secondary to involutional changes or facial nerve palsies. Several techniques have been described, including direct, mid-forehead, coronal, and endoscopic approaches. Of these options, the direct brow lift allows for predictable post-operative brow contour and excellent control over the degree of lift achieved. As with any surgical procedure, with direct brow lift comes known undesirable post-operative outcomes, the most common of which is forehead paresthesia from supraorbital nerve damage. Other complications include alopecia and brow asymmetry. However, one of the main critiques of direct brow lift remains the poor cosmesis that can result from scarring just above the brow. A study conducted by Cho et al. concluded that of the main surgical techniques currently employed for treatment of brow ptosis, direct brow lifts held the highest rates of visible scarring. Scarring can significantly impair an individuals' quality of life. This is particularly true of facial scarring, which is often difficult to conceal. Much research has been conducted in the area of treating postoperative, traumatic, and burn-related scarring. Cadet et al completed a randomized controlled trial using topical silicone gel for direct brow lift-related scarring, given the known benefit of silicone gel sheeting for the same, but did not find a significant difference between treatment and control groups. Some effective techniques described in the literature to date include long-pulsed non-ablative Nd:YAG laser, as well as intralesional steroid injection. On the rise are studies looking into the use of botulinum toxin A for treatment of unfavourable scarring and improved facial cosmesis. Botulinum toxin is a neuromodulatory agent that has garnered usage in a variety of therapeutic and cosmetic settings. More recently, injection of botulinum toxin as a means to reduce scarring and improve outcomes in wound healing has been investigated. Several studies, including two large metaanalyses, have shown this to be an effective method of treatment. Proposed mechanisms include increased apoptosis and suppressed proliferation of fibroblasts treated with botulinum toxin, modulated via the PTEN/PI3K/Akt pathway. Park et al added to the in vitro literature by demonstrating that fibroblasts treated with botulinum toxin A produced fewer extracellular matrix proteins and pro-fibrotic factors compared to untreated cells. Another underlying mechanism that results in suboptimal wound healing is the constant contraction and relaxation of facial muscles, causing repetitive microtrauma that ultimately increases inflammation and impairs wound healing. It therefore stands to reason that by temporarily paralyzing local musculature during the post-operative period, collagen maturation can take place uninterrupted by excessive tensile forces. Despite scarring being a widely known and undesirable complication of direct brow lift surgery, there have been no studies to date examining the use of onabotulinum toxin injection to reduce said scarring and improve outcomes. With this double masked, prospective, randomized controlled trial, the investigators aim to determine whether injection of onabotulinum toxin immediately following direct brow lift surgery can improve scores on validated patient and observer scar scales.

Currently, there are limited prevention or treatments available for dyschromia in burn hypertrophic scars (HTSs). The limited available techniques involve transferring melanocytes from unaffected areas to the scar to adjust pigment. These techniques involve the creation of a donor site and do not utilize the cells that may already be present in scars. This study aims to confirm melanocyte presence in regions of hypo- and hyper- pigmented HTS. If melanocytes can be found in regions of hypopigmentation, these scars may be able to be treated in the future by pigmentation stimulators without the need for surgery. Additionally, if pigmentation specific molecules of interest can be found to be up-regulated in hyperpigmented scar, these may be able to be altered by a pharmacotherapy.

Hypertrophic Burn Scars (HTBS) are often treated with Fractional CO2 laser therapy to improve cosmetic appearance. It has been noted that this leads to a reduction in the pain and itch associated with this type of scars. While this phenomenon is commonly described in the literature, the mechanism of pain and itch reduction in unclear. The investigators aim to better understand this process by histological evaluation of HTBS at different stages of laser treatment.