Clinical Trials About "margin margin Melanoma" RSS

22:09 EDT 2nd April 2020 | BioPortfolio

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Showing "margin margin Melanoma" Clinical Trials 1–25 of 1,600+

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Trial of Surgical Excision Margins in Thick Primary Melanoma - 2

Objectives: The purpose of this study was to assess the long-term follow-up of the overall and melanoma-specific survival in the randomised, open-lable multicenter trial (NTC NCT01183936) comparing excision margin of 2 cm versus 4 cm for patients with primary cutaneous malignant melanoma (CMM) thicker than 2 mm. Study hypothesis: The hypothesis is that there is no difference between the two treatment arms measured as melanoma-specific survival and overall survival.

Melanoma Margins Trial-II: 1cm v 2cm Wide Surgical Excision Margins for AJCC Stage II Primary Cutaneous Melanoma

Patients with a primary invasive melanoma are recommended to undergo excision of the primary lesion with a wide margin. There is evidence that less radical margins of excision may be just as safe. This is a randomised controlled trial of 1 cm versus 2 cm margin of excision of the primary lesion for adult patients with stage II primary invasive cutaneous melanomas (AJCC 8th edition) to determine differences in disease-free survival. A reduction in margins is expected to improve ...

Wide Margin vs. Narrow Margin in Postneoadjuvant Lumpectomy

Breast cancer patients often receive systemic drugs as the initial curative treatment of their disease. The initial systemic therapy leads to a variable degree of tumor shrinkage. At present, there is no evidence-based consensus among breast surgeons on the optimal extent of resection after considerable tumor shrinkage and whether resection margin should be designed according to the tumor extent before treatment or the extent after treatment. This trial will help determine the ...

Omitting vs. Doing Intraoperative Frozen Section Biopsy for Margin Status in Breast Conserving Surgery

- Study phase: 3 - Indication: Breast cancer patients undergoing breast conserving surgery - Primary objectives: To determine the effect of selective omission of intraoperative margin evaluation via frozen section on margin positive rate Secondary objectives: To determine the effect of selective omission of intraoperative margin evaluation via frozen section on reoperation rate, local recurrence rate, operation time, resection volume, medical ...

Anatomy-based Resection or Margin-based Resection for Hepatocellular Carcinoma

Anatomical liver resection was widely accepted as first line curative therapy for hepatocellular carcinoma. However, number of retrospective clinical studies showed no priority of anatomical resection for hepatocellular, compared with non-anatomical resection. Surgical resection margin is a essential factor that may affect tumor prognosis. It is controversial whether adequate liver resection margin is associated with improved survival outcome in patients with hepatocellular. ...

Prostate Margin Reduction to Reduce Acute Rectal Toxicity (PROTRACT)

The objectives of this study are: 1. Retrospectively validate a reduced margin schema for intermediate risk prostate hypofractionated VMAT treatments 2. Demonstrate in a prospective pilot clinical trial that patients planned and treated with the reduced margin schema will have reduced acute rectal toxicity

Efficacy Study of Random Placenta Margin Incision to Treat Complete Placenta Previa

The purpose of this study is to assess the efficacy of random placenta margin incision for hemorrhage control during cesarean section of complete placenta previa pregnancies.

Shave Margins vs. Standard Partial Mastectomy in Breast Cancer Patients

Breast cancer is the most common malignancy affecting women in the US. Surgical management is the mainstay of therapy, and in general consists of resection of the primary tumor with either a partial mastectomy (aka "lumpectomy") or a total mastectomy. The investigators hypothesize that routine shave margins during partial mastectomy will significantly reduce positive margin rate. A positive margin means that cancerous cells were detected at the edge of the excised area. This g...

NBI for Identifying Resection Margin Status in Gastric Cancer

As the proportion of early gastric cancer has been steadily increased in Korea, so has function-preserving surgery. The function preserving surgery is characterized by the minimized extent of gastrectomy, so this implies that bilateral margins are getting shorter than those of standard gastrectomies. Currently, there is only one way to identify resection margin status in gastric cancer, 'frozen biopsy'. However, it is labor-intensive and time-consuming procedure. In addition, ...

Margin-Based Vs. Robust Photon Radiotherapy Planning in IMRT of HN-SQCC

This is a research study to evaluate the quality of life and amount of dry mouth experienced as a result of radiotherapy in subjects who have squamous cell carcinoma of the head and neck (HN-SQCC). This study will compare the side effects experienced based on the method to plan radiotherapy, Margin Based or Robust.

Eyelid Crush for Marginal Eyelid Surgery

Surgery involves eyelid margin asscocited with intraoperative bleeding. Proper intra-operative homeostasis is essential for good intraoperative procedure and postoperative results.

Surgery Without Neoadjuvant Chemoradiotherapy Compared With Neoadjuvant Chemoradiotherapy for Rectal Cancer With Negative Circumferential Resection Margin Based on MRI Assessment, a Perspective Multicenter Randomized Controlled Trial

For now, neoadjuvant chemoradiotherapy is routinely performed for T3N1-2M0 rectal cancer. However, there are lots of complications following neoadjuvant chemoradiotherapy, such as Wound-related complications, anastomotic leakage, anastomotic stenosis, sexual dysfunction, testicular or ovary failure. Patients undergoing resection for rectal cancer had low rates of local recurrence and long disease-free survival regardless of whether an APR, CAA or low AR was performed. The main ...

Train New Examiners Via Modified Gingival Margin Plaque

The purpose of this study is to train new examiners while testing two commercial products using our standard one-day brushing study regimen by measuring gingival margin plaque index.

Feasibility of Ultrasound-based Navigation for Non-anatomical Liver Resections

In a non-anatomical resection of a liver tumor, only the part of the liver with the tumor and a safety margin of 5 - 10 mm are resected. This is done to ensure a negative resection margin, which means that no tumor cells are at the boundary of the resection. These non-anatomical resections can be performed repeatedly in case of recurrence. However, compared to anatomical resections, it is more challenging to keep a negative resection margin as anatomical landmarks cannot be use...

Percutaneous Removal and Margin Ablation for Breast Cancer

We hypothesize that radiofrequency ablation after single-insertion image guided vacuum assisted biopsy (IVEB) can be used to achieve negative margins in small unicentric breast cancers (≤1.5 cm).

Efficiency of Presurgical Basal Cell Carcinoma Margin Mapping

This Interventional Randomised Controlled study is intended to establish that presurgical margin mapping of BCCs with OCT results in a reduction of the number of MMS surgery stages without adversely impacting clinical outcome, resulting in shorter patient stays and more efficient use of surgical and operating room resources.

Clinical Assessment of Usage of Cleft Margin Flap With Anterior Palatal Closure in Closure of Naso-alveolar Defect.

During primary cleft lip repair in patients who were born with cleft lip and palate, usage of cleft margin flap with anterior palatal closure will be done in an attempt to close the Naso-alveolar fistula (defect) that usually occur and remain in those patients post-operatively.

Neurotropic Melanoma of the Head and Neck

This is a 2-armed randomised controlled trial comparing surgery alone with surgery plus post-operative radiation therapy for patients with completely resected primary melanoma showing histological features of neurotropism. Uncontrolled studies suggest that this form of primary melanoma has a high risk of local recurrence and that postoperative radiation therapy may substantially reduce that risk. Patients who are eligible on the basis of the pathology of the excised melanoma ...


Usefulness of Near-focus With Narrow-band Imaging

Near-focus with narrow-band imaging is a novel technique to improve the quality of images of the irregular mucosal structures and microvessels of gastric neoplasms. We compared this technique with indio carmin spray, commonly used tool to determine tumor margin. The subject were patients who underwent endoscopic submucosal dissection for gastric neoplasms. They were randomized into near-focus with narrow-band imaging and indigo carmin groups. First, marking was performed at the...

Meibomian Gland Dysfunction Management

The purpose of this study is to compare electronic debridement of the eyelid margin (BlephEx) to manual debridement of the eyelid margin as treatment options for patients intolerant to contact lens wear consequent to Meibomian gland dysfunction.

Safety Margin Assessment After RFA Using the Registration of Pre-ablation MRI and Post-ablation CT

Magnetic resonance imaging (MRI) has been widely used for small liver lesion detection and characterization. In patients who undergo RFA, MRI is often performed before RFA, whereas immediate technical success is usually assessed by CT. Conventional visual assessment of two modalities may be more challenging than being anticipated, because acquisition position, respiration, and spatial resolution differ between the two. Therefore, the study purpose is to evaluate the results of ...

Excision Followed by Radiofrequency Ablation for Breast Cancer

The purpose of this study will be to evaluate, in a multi-center setting, the ability of radiofrequency ablation (RFA) of breast cancer lumpectomy sites to extend the "final" negative margin and consequently decrease the rates of re-operation. During the initial breast conservation procedure (lumpectomy), immediately following routine surgical resection of the tumor, radiofrequency energy (RFA) is applied to the wall (bed) of the fresh lumpectomy cavity, thus extending tumor f...

Image Guided Surgery for Margin Assessment of Head and Neck Cancer Using Cetuximab-IRDye800CW cONjugate

Surgery remains a main pillar in the treatment of head and neck squamous cell carcinoma (HNSCC). The margin status is the main prognostic factor of local tumor control in surgically treated HNSCC and will determine the postoperative treatment strategy. A margin of ≤1 mm of normal tissue is considered a positive margin and requires either a re-operation or postoperative chemoradiation with a combination of cisplatin and 5-FU, which substantially increases morbidity. Margins wi...

Usefulness of NBI for Complete Endoscopic Resection of SSA/P

This study is a prospective randomized study to evaluate the role of NBI for improving complete resection rate of sessile serrated adenoma/polyp (SSA/P). The authors will enroll consecutive patients who underwent colon polypectomy for SSA/P during colonoscopy. The authors will inspect resection margin of SSA/P using white light endosocpy (WLE) or NBI after randomization for the evaluation of remnant lesion. Additional resection will be performed for suspicious of remnant lesion...

Intraoperative Navigation for Surgically Precise Resection of the Chest (INSPIRE)

While undergoing chest wall resection, a surgeon's major concern is obtaining an appropriate surgical margin. Difficulty or failure to do so can result in prolonged operative time, need for re-operation due to a positive resection margin, or need for complex chest wall reconstruction due to unnecessarily wide resection. Over the last decades, surgical navigation systems have been developed to improve operative precision in various surgical fields. This is achieved by integratin...

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