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( Sang Geun Lee ),( Hwa Jung Ryu ),( Il Hwan Kim ) 대한피부과학회 2014 Annals of Dermatology Vol.26 No.6
Many treatment modalities have been developed for axillary osmidrosis. It is well known that the surgical treatment has the best results. However, there is a high possibility of side effects. The 1,444-nm lipolysis laser has been recently introduced to remove the apocrine glands. So far, subdermal coagulation treatment with a 1,444-nm Nd:YAG laser may be the least invasive and most effective therapy for axillary osmidrosis. However, according to our previous experience, the recurrence rate was 20%∼30%. This emphasizes the need for combination of surgical method and non-surgical method and we combined subcutaneous tissue removal and photothermocoagulation with a 1,444-nm Nd:YAG laser. Three patients for bilateral axillary osmidrosis were enrolled. After an incision of about one-third the length of the widest transverse diameter, the apocrine glands were separated from the skin. And then apocrine glands within the marked area were destroyed by irradiation with a 1,444-nm Nd:YAG laser thereafter. All patients exhibited no relapse of axillary osmidrosis and were satisfied with the treatment results. A combination of subcutaneous tissue removal and Interstitial laser photothermocoagulation with a 1,444-nm Nd:YAG laser could be an effective treatment for mild to moderate axillary osmidrosis. (Ann Dermatol 26(6) 755∼757, 2014)
Ryu, Sang Baek,Choi, Jeong Woo,Ahn, Kun No,Goo, Yong Sook,Kim, Kyung Hwan The Korean Academy of Medical Sciences 2017 JOURNAL OF KOREAN MEDICAL SCIENCE Vol.32 No.6
<P>Retinal implants have been developed as a promising way to restore partial vision for the blind. The observation and analysis of neural activities can offer valuable insights for successful prosthetic electrical stimulation. Retinal ganglion cell (RGC) activities have been investigated to provide knowledge on the requirements for electrical stimulation, such as threshold current and the effect of stimulation waveforms. To develop a detailed ‘stimulation strategy’ for faithful delivery of spatiotemporal visual information to the brain, it is essential to examine both the temporal and spatial characteristics of RGC responses, whereas previous studies were mainly focused on one or the other. In this study, we investigate whether the spatiotemporal visual information can be decoded from the RGC network activity evoked by patterned electrical stimulation. Along with a thorough characterization of spatial spreading of stimulation current and temporal information encoding, we demonstrated that multipixel spatiotemporal visual information can be accurately decoded from the population activities of RGCs stimulated by amplitude-modulated pulse trains. We also found that the details of stimulation, such as pulse amplitude range and pulse rate, were crucial for accurate decoding. Overall, the results suggest that useful visual function may be restored by amplitude modulation-based retinal stimulation.</P>
Surgical Outcomes and Safety of Robotic Sacrocolpopexy in Women With Apical Pelvic Organ Prolapse
Sung, Hyun Hwan,Ko, Kwang Jin,Suh, Yoon Seok,Ryu, Gyu Ha,Lee, Kyu-Sung Korean Continence Society 2017 International Neurourology Journal Vol.21 No.1
<P><B>Purpose</B></P><P>This study aimed to investigate the surgical outcomes and safety of robotic sacrocolpopexy (RSC) in patients with uterine/vaginal vault prolapse. </P><P><B>Methods</B></P><P>Between January 2009 and June 2015, 16 women with apical prolapse underwent RSC. Pelvic organ prolapse quantification (POP-Q) examination was performed, and treatment success was defined as the presence of grade 0 or I apical prolapse upon POP-Q examination at the final follow-up. Pelvic floor distress inventory-short form 20 (PFDI-SF 20) was administered at every follow-up. A treatment satisfaction questionnaire was administered by telephone to evaluate patient satisfaction with the operation. </P><P><B>Results</B></P><P>Median age was 65 years (interquartile range [IQR], 56–68 years), and follow-up duration was 25.3 months (IQR, 5.4–34.0 months). Thirteen women (81.3%) had ≥grade III apical prolapse. Operation time was 251 minutes (IQR, 236–288 minutes), and blood loss was 75 mL (IQR, 50–150 mL). Median hospital stay was 4 days (IQR, 3–5 days). At the final follow-up, treatment success was reported in all patients, who presented grade 0 (n=8, 57.1%) and grade I (n=6, 42.9%) apical prolapse. Dramatic improvements in PFDI-SF 20 scores were noted after RSC (from 39 to 4; P=0.001). Most patients (12 of 13) were satisfied with RSC. An intraoperative complication (sacral venous plexus injury) was reported in 1 patient, and there was no conversion to open surgery. Mesh erosion was not reported. </P><P><B>Conclusions</B></P><P>RSC is an efficient and safe surgical option for apical prolapse repair. Most patients were satisfied with RSC. Thus, RSC might be one of the best treatment options for apical prolapse in women.</P>
A Case of Acral Persistent Papular Mucinosis
Ryu, Hwa Jung,Son, Sang Wook,Kim, Aeree,Kim, Il Hwan 대한피부과학회 2003 Annals of Dermatology Vol.15 No.1
Acral persistent papular mucinosis has been thought to be a distinct form of cutaneous mucinosis not associated with systemic diseases. It was recently classi.ed as one of .ve subtypes of localized lichen mixedematosus. A 64-year-old man presented with a 15-year history of flshcolored to translucent papules and a few round hypopigmented patches on his wrists, back of the hands, and distal forearms. Biopsy from the papular lesions revealed focal mucin accumulation in the upper reticular dermis. The clinical and histopathological features were consistent with acral persistent papular mucinosis.