• Title/Summary/Keyword: radiofrequency

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Radiofrequency Pitch Raising Surgery of Low Vocal Pitch Female that Results from Laryngeal Trauma (후두외상 후 발생한 저음발성 여자환자에서의 라디오전파를 이용한 음도상승 유도 치료 1예)

  • Kim, Min-Ho;Song, Ki-Jae;Choi, Hong-Shik
    • Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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    • v.17 no.1
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    • pp.56-59
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    • 2006
  • The factors involved in controlling the vocal pitch are the tension, the mass, the length of the vocal cords and the subglottic pressure. Vocal pitch can be elevated surgically by increasing the stiffness or reducing the vibrating mass of the vocal cords. Recently, we experienced a case of 25 year-old female whose vocal pitch was elevated with radiofrequency surgery of right vocal cord on suspension laryngoscopy. Elevation of vocal pitch(134.11 to 144.73) was noted two months after operation. So we report this case with review of literature.

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Successful Treatment of Occipital Radiating Headache Using Pulsed Radiofrequency Therapy

  • Lee, Sun Yeul;Jang, Dae Il;Noh, Chan;Ko, Young Kwon
    • Journal of Korean Neurosurgical Society
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    • v.58 no.1
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    • pp.89-92
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    • 2015
  • Rheumatoid arthritis (RA) is a chronic inflammatory disease involving multiple joints. The cervical spine is often affected, and cases involving atlantoaxial joint can lead to instability. Anterior atlantoaxial subluxation in RA patients can lead to posterior neck pain or occipital headache because of compression of the C2 ganglion or nerve. Here, we report the successful treatment of a RA patient with occipital radiating headache using pulsed radiofrequency therapy at the C2 dorsal root ganglion.

Percutaneous Radiofrequency Thermocoagulation of the Stellate Ganglion in the Treatment of Cervical and Upper Extremity Pain -A case report- (경부 및 상지의 통증치료를 위한 성상신경절의 경피적 고주파 열응고술 -증례 보고-)

  • Kim, Ji-Young;Kim, Ki-Yeob
    • The Korean Journal of Pain
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    • v.14 no.2
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    • pp.239-244
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    • 2001
  • Stellate ganglion block (SGB) is a frequently used sympathetic block utilized to diagnose or treat various painful conditions of the cervical regions and the upper extremities. Additionally, RadioFrequency (RF) lesions of the stellate ganglion can be useful in managing sympathetically-maintained pain. Two patients were suffering from pain in the face, neck and the upper extremities were treated with stellate ganglion block. In spite of repeated blocks, the degree and duration of pain did not decrease. However, after performing radiofrequency thermocoagulation of the stellate ganglion under fluroscopy, followed by thermography on the process of treatment with RF stellate ganglion neurolysis, the patients' pain levels were alleviated after the RF lesions of stellate ganglion and the procedure also increased the temperature at the upper extremity on thermogarphy. Additionally, the patients did not complain of any remarkable complications following this procedure.

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Radiofrequency Thermocoagulation for Trigeminal Neuralgia Sustained Following Microvascular Decompression -A case report- (미세혈관감압술에도 지속된 삼차신경통의 고주파 열응고술을 이용한 치험 -증례 보고-)

  • Kim, Hae-Kyu;Kang, Dong-Hee;Kim, Ki-Yeob;Baik, Seong-Wan;Kim, In-Se
    • The Korean Journal of Pain
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    • v.11 no.2
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    • pp.302-306
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    • 1998
  • The authors report the result achieved in the treatment of trigeminal neuralgia patient, especially V2 involved patient, using radiofrequency (RF) thermocoagulation of Gasserian ganglion. A 62-year old female patient had severe burning pain on right cheek usually initiating from upper molar teeth area for 10 years. She was treated with microvascular decompression operation 10 years ago. However, there was no pain relief by operation. She wanted non-surgical treatment. Therefore, we recommended RF thermocoagulation therapy. After 2 times of RF thermocoagulation, there was excellent pain relief without complications. And, for 6months follow-up, there were no pain, and no evidences of complication and recurrence.

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Extended duration pulsed radiofrequency for the management of refractory meralgia paresthetica: a series of five cases

  • Ghai, Babita;Dhiman, Deepanshu;Loganathan, Sekar
    • The Korean Journal of Pain
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    • v.31 no.3
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    • pp.215-220
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    • 2018
  • Meralgia paresthetica (MP) is a sensory mononeuropathy, caused by compression of the lateral femoral cutaneous nerve (LFCN) of thigh. Patients refractory to conservative management are treated with various interventional procedures. We report the first use of extended duration (8 minutes) pulsed radiofrequency of the LFCN in a case series of five patients with refractory MP. Four patients had follow up for 1-2 years, and one had 6 months follow up. All patients reported remarkable and long lasting symptom relief and an increase in daily life activities. Three patients came off medications and two patients required minimal doses of neuropathic medications. No complications were observed.

Reduction in mechanical allodynia in complex regional pain syndrome patients with ultrasound-guided pulsed radiofrequency treatment of the superficial peroneal nerve

  • Chae, Won Soek;Kim, Sang Hyun;Cho, Sung Hwan;Lee, Joon Ho;Lee, Mi Sun
    • The Korean Journal of Pain
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    • v.29 no.4
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    • pp.266-269
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    • 2016
  • The superficial peroneal nerve is vulnerable to damage from ankle sprain injuries and fractures as well as surgery to this region. And it is also one of the most commonly involved nerves in complex regional pain syndrome type II in the foot and ankle region. We report two cases of ultrasound-guided pulsed radiofrequency treatment of superficial peroneal nerve for reduction of allodynia in CRPS patients.

Lobectomy due to Pulmonary Vein Occlusion after Radiofrequency Ablation for Atrial Fibrillation

  • Papakonstantinou, Nikolaos A.;Zisis, Charalambos;Kouvidou, Charikleia;Stratakos, Grigoris
    • Journal of Chest Surgery
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    • v.51 no.4
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    • pp.290-292
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    • 2018
  • Radiofrequency ablation is an effective treatment for atrial fibrillation. Pulmonary vein stenosis/occlusion is one of its rare complications. Herein, the case of a 50-year-old man with hemoptysis and migratory pulmonary infiltrations after transcatheter radiofrequency ablation for atrial fibrillation is presented. Initially, pneumonia, interstitial pulmonary disease, or lung cancer was suspected, but wedge resection revealed hemorrhagic infiltrations. Chest computed tomography pulmonary angiography detected no left superior pulmonary vein due to its total occlusion, and left upper lobectomy was performed. Post-ablation pulmonary vein occlusion must be strongly suspected in cases of migratory pulmonary infiltrations and/or hemoptysis.

INTRODUCTION OF RADIOFREQUENCY REDUCTION OF MASSETER MUSCLE AND CASE REPORTS (고주파를 이용한 교근 축소술 소개 및 증례보고)

  • Jee, Yu-Jin;Lee, Deok-Won
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.30 no.5
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    • pp.473-479
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    • 2008
  • Asians tend to have prominent mandibular angle. The causes of wide lower third of the facial contour are obtuse mandibular angle and hypertrophy of masseter muscles. In cases of hypertrophy of masseter muscles, conventional treatment intends to the contraction of masseter muscle. Recently, volumetric reduction of masseter muscles using botulinum toxin type A injection and radiofrequency (RF) reduction have been introduced. The use of RF energy for masseter muscle reduction is known as a safe, simple, and effective method for aesthetic lower facial contouring. The purpose of this study is to present the effects of RF reduction applied to hypertrophy of masseter muscles, to review and to encourage RF practices in oral and maxillofacial region.

Decomposition Characteristics of Benzene by Microwave

  • Kim, Dong-Sik;Kim, Jeong-Young;Lee, Dong-Kyu
    • Carbon letters
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    • v.1 no.3_4
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    • pp.143-147
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    • 2001
  • Under the irradiation of radiofrequency wave, the dipole materials vibrate as microwave phase changes. This causes friction between adjacent molecules and enables an unique characteristics of interior heating of the materials. Using this principle, when harmful material pass through anthracite- bed which play a role as a absorber of radiofrequency wave, the material can be easily decomposed by the microwave energy. To remove benzene vapour and other solvents in the process of industry, we examined decomposition of benzene in this manner. It was found that benzene was decomposed to the methane, ethane, propane and butane, etc. during passing through the carbon-bed under the microwave impingement and distribution of methane in the products reached about 85 vol.%. The decomposition rate of benzene was high within 5 minutes from start of reaction. For a lower concentration of benzene gas, general cases in the field of industry, almost complete decomposition of benzene is believed possible and this method is surely expected to be useful for the prevention of air pollution and improvement of ambient condition.

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Burn Wound along the Guide Needle Trajectory as a Complication of Radiofrequency Neurotomy of the Lumbar Medial Branch -A case report- (요부 내측지 고주파 신경절리술 시행 시 유도침 경로를 따라 발생한 화상 -증례보고-)

  • Youn, Hong Jun;Shim, Jae Chol
    • The Korean Journal of Pain
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    • v.19 no.2
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    • pp.257-260
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    • 2006
  • Radiofrequency neurotomy of the lumbar medial branch, via a caudal approach, is a representative interventional procedure for lumbar zygapophysial joint pain, which can be performed more accurately and easily using a guide needle technique. We experienced a case of burn wound formation along the guide needle trajectory, where heat conduction through the guide needle was suggested to have resulted in the burn wound.