scholarly journals Carbon Dioxide Laser Microsurgery versus Low-Temperature Plasma Radiofrequency Ablation for T1a Glottic Cancer: A Single-Blind Randomized Clinical Trial

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Yan Zhang ◽  
Binru Wang ◽  
Guangbin Sun ◽  
Guoliang Zhang ◽  
Ling Lu ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Overall Survival ◽  
Radiofrequency Ablation ◽  
Low Temperature ◽  
Carbon Dioxide Laser ◽  
Survival Rates ◽  
Glottic Cancer ◽  
Low Temperature Plasma ◽  
Temperature Plasma ◽  
Overall Survival Rates

Background. Very few studies have been conducted to compare carbon dioxide laser microsurgery (CO2-LS) with low-temperature plasma radiofrequency ablation (LTP-RFA) in treating T1a glottic cancer. Therefore, we conducted this study to compare the efficacy of CO2-LS and LTP-RFA to define a superior therapeutic modality for T1a glottic cancer.Methods. Patients (n=131) with T1a glottic cancer were recruited between January 2010 and September 2014. The included patients were randomly assigned to either receive CO2-LS (n=65) or LTP-RFA (n=66). We conducted the following multidimensional vocal assessments: (i) videostroboscopic evaluation; (ii) auditory-perceptual evaluation; (iii) aerodynamics/ efficiency; (iv) acoustics; and (v) self-assessment questionnaires. Meanwhile, the surgery time and three-year overall survival rates in two groups were recorded. The predefined primary endpoint was overall survival, and the minimum follow-up time was set to six months.Results. After treatment, we found that the structure and vibration of vocal cord might recover more quickly in patients receiving LTP-RFA than in patients receiving CO2-LS, and moreover, the patients in the LTP-RFA group had the better vocal functions. Meanwhile, the surgery time was significantly less in the LTP-RFA group (8.83±1.59 minutes) than in the CO2-LS group (12.49±1.40 minutes) (p<0.00001). In addition, the two intervention methods had the similar three-year overall survival rates (94% versus 96%, p=0.58).Conclusion. These results indicated that both LTP-RFA and CO2-LS could effectively treat T1a glottic cancer, and LTP-RFA might have some advantages in voice function. Limited by the relatively small sample size, future studies were needed to validate our conclusion.

scholarly journals Low-Temperature Plasma-Enhanced Atomic Layer Deposition of SiO2 Using Carbon Dioxide

2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Zhen Zhu ◽  
Perttu Sippola ◽  
Oili M. E. Ylivaara ◽  
Chiara Modanese ◽  
Marisa Di Sabatino ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Low Temperature ◽  
Atomic Layer Deposition ◽  
Atomic Layer ◽  
Low Temperature Plasma ◽  
Temperature Plasma ◽  
Layer Deposition

scholarly journals A Novel Endoscopic Nasopharyngectomy Technique Using Low-Temperature Plasma Radiofrequency Ablation with Piece Resection In Resectable Locally Recurrent Nasopharyngeal Carcinoma: Operative Video and Technical Nuances

2021 ◽  
Author(s):  
Xiong Zou ◽  
Yi-Jun Hua ◽  
You-Ping Liu ◽  
Yu-Long Xie ◽  
Yan-Feng Ouyang ◽  
...  
Keyword(s):  
Radiofrequency Ablation ◽  
Survival Rate ◽  
Nasopharyngeal Carcinoma ◽  
Low Temperature ◽  
Operation Time ◽  
Low Temperature Plasma ◽  
Temperature Plasma ◽  
Free Survival ◽  
Recurrent Nasopharyngeal Carcinoma ◽  
Locally Recurrent

Abstract Objectives: Endoscopic nasopharyngectomy (ENPG) with en bloc resection has been well accepted in resectable locally recurrent nasopharyngeal carcinoma (rNPC), but it is difficult to master the technique and disseminate. We designed a novel method using low-temperature plasma radiofrequency ablation (LPRA) with piece resection and evaluated the survival benefit.Materials and Methods: A total of 56 resectable rNPC patients were retrospectively analyzed, and the following factors were assessed: ratio of R0 margin, overall survival rate (OS), local relapse-free survival rate (LRFS), and progression-free survival rate (PFS).Results: All surgeries were successfully performed without any severe postoperative complications or deaths. The median operation time was 130 minutes (range, 32–280 minutes), with little blood loss (median, 30 ml; range, 5–500 ml). The average number of hospital days postoperation was 3 days (range, 2–5 days). All cases (100.0%) had R0 margins. The nasopharyngeal defects were completely re-epithelialized in 53 (94.6%) patients. The 2-year OS, LRFS, and PFS rates of the entire cohort were 100%, 90.7% and 88.6%, respectively. Multivariate Cox proportional hazards model analysis indicated that cycles of radiotherapy were independent risk factors for LRFS (hazard ratio [HR], 16.607; 95% CI 1.638–168.417; P = 0.017) and PFS (HR, 7.424; 95% CI 1.190–46.320; P = 0.032).Conclusions: Radical endoscopic nasopharyngectomy is a novel, safe and relatively easier method for treating resectable rNPC by using low-temperature plasma radiofrequency ablation with piece resection. However, further data and longer follow-up time are needed to prove its efficacy.

Hydrophobic Modification of PVDF

2011 ◽  
Vol 687 ◽  
pp. 658-661 ◽  
Author(s):  
Xiao Xing Shen ◽  
Wen Fang Yang ◽  
Qing Fu Zhang
Keyword(s):  
Carbon Dioxide ◽  
Contact Angle ◽  
Low Temperature ◽  
Supercritical Carbon Dioxide ◽  
Time Pressure ◽  
Low Temperature Plasma ◽  
Hydrophobic Modification ◽  
Hydrophobic Property ◽  
Hydrophobic Properties ◽  
Temperature Plasma

For preparation of an architecture membrane with hydrophobic properties, a method combining supercritical carbon dioxide (scCO2 ) and low temperature plasma treatment was used. The effects of treating time, pressure and temperature in scCO2 fluid on surface hydrophobic property were studied. The results showed that the contact angle of the membrane that was firstly modified by low temperature plasma and then treated in scCO2 fluid was up to 141°from 80°. In addition, the optimal hydrophobic modification conditions in scCO2 were 100°C、25MPa and 6h, and the hydrophobic property of the membrane that treated by plasma improved, the most suitable time was 300s.

scholarly journals Low-temperature plasma radiofrequency ablation in phantom limb pain: A case report

2018 ◽  
Vol 4 (2) ◽  
pp. 62 ◽  
Author(s):  
Fei Li ◽  
Jiaxiang Ni ◽  
Hongyan Li ◽  
Yan Li ◽  
Zhaoxuan Guo ◽  
...  
Keyword(s):  
Case Report ◽  
Radiofrequency Ablation ◽  
Low Temperature ◽  
Phantom Limb Pain ◽  
Phantom Limb ◽  
Low Temperature Plasma ◽  
Limb Pain ◽  
Temperature Plasma

scholarly journals A Novel Endoscopic Nasopharyngectomy Technique Using Low-Temperature Plasma Radiofrequency Ablation with Piece Resection In Resectable Locally Recurrent Nasopharyngeal Carcinoma: Operative Video and Technical Nuances

2022 ◽  
Keyword(s):  
Radiofrequency Ablation ◽  
Nasopharyngeal Carcinoma ◽  
Low Temperature ◽  
Full Text ◽  
Low Temperature Plasma ◽  
Temperature Plasma ◽  
Recurrent Nasopharyngeal Carcinoma ◽  
Locally Recurrent

Abstract The full text of this preprint has been withdrawn by the authors due to author disagreement with the posting of the preprint. Therefore, the authors do not wish this work to be cited as a reference. Questions should be directed to the corresponding author.

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