Ist die Zungengrundreduktion mit Radiofrequenzenergie bei SBAS ausreichend evaluiert?

Pirsig, W

doi:10.1007/s001060170072

Cited by 4 publications

(1 citation statement)

References 8 publications

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“…Radiofrequency technology has been utilized in medicine for >100 years and is frequently used for reducing nasal turbinate, palate and tongue base tissues in the management of nasal obstruction, snoring and obstructive sleep apnea, with promising results ( 1 – 7 ). The radiofrequency energy delivered to the tissue is generally considered to determine lesion size ( 8 ).…”

Section: Introductionmentioning

confidence: 99%

Determining the critical effective temperature and heat dispersal pattern in monopolar radiofrequency ablation using temperature-time integration

Tseng

Lin

Chang

et al. 2015

Experimental and Therapeutic Medicine

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The radiofrequency ablation (RFA) lesion size is posited to be disproportionate to the total delivered energy, and temperature-time integration (TTI) may have a more critical effect on lesion size. The present study aimed to evaluate this hypothesis by determining the temperature threshold and temperature distribution over tissues during the RFA lesioning process. Using an ex vivo chicken tissue model and an in vivo rabbit model with RFA applied for 2 min under various target temperature settings, the resultant lesions were evaluated histologically using Masson's trichrome stain. The temperature distribution over the tissue during the RFA lesioning process was also determined using a VT02 Visual IR Thermometer. It was revealed that the thermal injury threshold for RFA in the chicken tissues was ~65°C, but that it ranged from 55–65°C in mammals. Using infra-red thermal imaging, the temperature gradient (from the center to the periphery) during the RFA lesioning process demonstrated a uniform heat diffusion pattern. This data supports the proposed hypothesis that TTI is a critical parameter in determining RFA lesion size and can be applied clinically using the following equation: [Target temperature − 55 (°C)] × time (sec) is proportional to RFA lesion size.

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Section: Introductionmentioning

confidence: 99%

Determining the critical effective temperature and heat dispersal pattern in monopolar radiofrequency ablation using temperature-time integration

Tseng

Lin

Chang

et al. 2015

Experimental and Therapeutic Medicine

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Using temperature–time integration as a critical parameter in using monopolar radiofrequency ablations

Chang

Tseng

Chen

et al. 2014

Eur Arch Otorhinolaryngol

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It is generally believed that radiofrequency energy delivered to the tissue determines the RFA lesion size. The purpose of this study was to re-evaluate this relationship and propose a potentially parameter of temperature-time integration as a better indicator of RFA lesion size. Using an Ex Vivo lesioning model, fixed 300 J RFA lesions were created under target temperature settings of 65, 75, and 85 °C. The lesion sizes were recorded and compared. Under the target temperature of 65 and 75 °C, the RFA procedures were sustained for a period of time after reaching the target temperature. The correlation between the lesion size and the sustained time (Ts) after reaching the target temperature was calculated. Under the same amount of energy output (300 J), the lesion size created under the three different target temperatures (65, 75, and 85 °C) differs significantly. When the target temperature was set to 75 °C, the correlation coefficient between the Ts and the lesion area and the maximal effective radius (Mer) were 0.913 and 0.971, respectively. When the target temperature was set to 65 °C, the correlation coefficient between the Ts and the lesion area and the Mer were 0.962 and 0.923, respectively. The RFA lesion size is not proportional to the total delivered energy. The Temperature-time integration appears to be a much better indicator that critically influences the lesion size.

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Today's state of the art in surgical robotics*

Pott¹,

Scharf²,

Schwarz³

2005

Computer Aided Surgery

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Ist die Zungengrundreduktion mit Radiofrequenzenergie bei SBAS ausreichend evaluiert?

Cited by 4 publications

References 8 publications

Determining the critical effective temperature and heat dispersal pattern in monopolar radiofrequency ablation using temperature-time integration

Determining the critical effective temperature and heat dispersal pattern in monopolar radiofrequency ablation using temperature-time integration

Using temperature–time integration as a critical parameter in using monopolar radiofrequency ablations

Today's state of the art in surgical robotics*

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