Feasibility of Radiofrequency Resection in Oropharyngeal Tumor Surgery

Study Overview
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Brief Summary
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In the last years radiofrequency resection has become a frequent method in surgical subspecialties. Although many departments are using this method for the resection of Tumor in the oropharynx, there is no study so far which describes feasibility and safety. Goal of this study is to show feasibility and safety of Radiofrequency Resection in Oropharyngeal Tumor Surgery.

Detailed Description
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In the last years radiofrequency resection has become a frequent method in surgical subspecialties. Although many departments are using this method for the resection of Tumor in the oropharynx, there is no study so far which describes feasibility and safety. Goal of this study is to show feasibility and safety of Radiofrequency Resection in Oropharyngeal Tumor Surgery.

Official Title
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Feasibility of Radiofrequency Resection in Oropharyngeal Tumor Surgery

Conditions
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Radiofrequency Resection

Intervention / Treatment
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* Procedure: transoral radiofrequency Resection in Oropharyngeal Tumor Surgery


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: - 18 years and older benign or malign tumor of the oropharynx tumor must be resectable transorally Exclusion Criteria: Prior radiotherapy or chemotherapy

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Patients with benign or malign tumor in the oropharynx<br>Patient of 18 years and older with benign or malign tumor in the oropharynx. The resection is done transorally by radiofrequency | Procedure: transoral radiofrequency Resection in Oropharyngeal Tumor Surgery<br>* Patient of 18 years and older with benign or malign tumor in the oropharynx. The resection is done transorally by radiofrequency<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| total blood loss, | assessing the blood loss by measuring blood in the suction | intraoperative | 
| tissuesticking | tissuesticking by physician global assessment scale from 1 - 6 | intraoperative | 
| coagulation | coagulation by physician global assessment scale from 1 - 6, | intraoperative | 
| Duration of Operation | measuring Duration of Operation in minutes | intraoperative | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Zone of coagulation | Zone of coagulation to assess the tissue damage by radiofrequency by a scale 1 - 6, | within one month after the operation | 
| postoperative parameters | woundhealing by Parameters normal, delayed, infection; | within one month after the operations | 
| postoperative pain | postoperative pain by visual analog scale from 0 -10, | within one month after the operations | 
| accuracy of section | accuracy of section assessed by a scale from 1 - 6 | within one month after the operations | 
| status of resection | assessment of status of resection by assessing the margins of resection for Tumor scale from 1 - 6, | within one month after the operations | 
| postoperative dysfunctions by descriptive name of scale | postoperative dysfunctions by descriptive scale from 1 -10 | within one month after the operations |