Pub Date : 2023-04-15DOI: 10.2530/jslsm.jslsm-44_0014
{"title":"The 33<sup>rd</sup> Annual Meeting of the Japan Photodynamic Association The 19<sup>th</sup> Japan Photodynamic Neurosurgical Society The 35<sup>th</sup> Annual Meeting of Japanese Society for Laser Dentistry","authors":"","doi":"10.2530/jslsm.jslsm-44_0014","DOIUrl":"https://doi.org/10.2530/jslsm.jslsm-44_0014","url":null,"abstract":"","PeriodicalId":19350,"journal":{"name":"Nippon Laser Igakkaishi","volume":"3 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136339613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.2530/jslsm.jslsm-44_0040
Takashi Yoshida, Hidefumi Kinoshita
For upper urinary tract urothelial carcinoma (UTUC), the European Association of Urology and the National Comprehensive Cancer Network guidelines have recommended ureteroscopic surgery (URS) for cases with low-risk tumors (low-grade biopsy and cytology, <1.5–2 cm, unifocal, no invasion on imaging), and cases with bilateral tumors, a solitary kidney, or severe renal dysfunction. However, the 2-year recurrence rate after surgery is remarkably high, leading to the need for salvage radical nephroureterectomy. Furthermore, unlike robotic or laparoscopic surgery, the surgical procedure for URS has not been standardized due to the technical specificity of laser devices and ureteroscopes. Therefore, this procedure is performed only in limited facilities with extensive experience internationally. In this review, we introduce the current issues of URS for UTUC and the use of the photodynamic diagnosis-guided URS procedure, which we are implementing to overcome these challenges.
{"title":"Photodynamic Diagnosis-guided Ureteroscopic Surgery for Upper Urinary Tract Tumors","authors":"Takashi Yoshida, Hidefumi Kinoshita","doi":"10.2530/jslsm.jslsm-44_0040","DOIUrl":"https://doi.org/10.2530/jslsm.jslsm-44_0040","url":null,"abstract":"For upper urinary tract urothelial carcinoma (UTUC), the European Association of Urology and the National Comprehensive Cancer Network guidelines have recommended ureteroscopic surgery (URS) for cases with low-risk tumors (low-grade biopsy and cytology, <1.5–2 cm, unifocal, no invasion on imaging), and cases with bilateral tumors, a solitary kidney, or severe renal dysfunction. However, the 2-year recurrence rate after surgery is remarkably high, leading to the need for salvage radical nephroureterectomy. Furthermore, unlike robotic or laparoscopic surgery, the surgical procedure for URS has not been standardized due to the technical specificity of laser devices and ureteroscopes. Therefore, this procedure is performed only in limited facilities with extensive experience internationally. In this review, we introduce the current issues of URS for UTUC and the use of the photodynamic diagnosis-guided URS procedure, which we are implementing to overcome these challenges.","PeriodicalId":19350,"journal":{"name":"Nippon Laser Igakkaishi","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135443095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-15DOI: 10.2530/JSLSM.JSLSM-42_0012
Yutaka Tomioka, Kenta Mori, T. Nishimura, J. Usuda, K. Awazu
This study evaluates photodynamic therapeutic probes for peripheral lung cancer by a preclinical trial based on computational simulation. By light propagation simulation based on a Monte Carlo method, light distributions in tissues by a direct transmission light irradiation probe and a diffused light irradiation probe were calculated to compare each irradiated volume. The simulated results demonstrated quantitatively that the diffused light irradiation probe can irradiate the tumor tissue more efficiently than the direct transmission light irradiation probe for peripheral lung cancer.
{"title":"Comparative Evaluation of Photodynamic Therapeutic Probes for Peripheral Lung Cancer Based on Light Propagation Simulation","authors":"Yutaka Tomioka, Kenta Mori, T. Nishimura, J. Usuda, K. Awazu","doi":"10.2530/JSLSM.JSLSM-42_0012","DOIUrl":"https://doi.org/10.2530/JSLSM.JSLSM-42_0012","url":null,"abstract":"This study evaluates photodynamic therapeutic probes for peripheral lung cancer by a preclinical trial based on computational simulation. By light propagation simulation based on a Monte Carlo method, light distributions in tissues by a direct transmission light irradiation probe and a diffused light irradiation probe were calculated to compare each irradiated volume. The simulated results demonstrated quantitatively that the diffused light irradiation probe can irradiate the tumor tissue more efficiently than the direct transmission light irradiation probe for peripheral lung cancer.","PeriodicalId":19350,"journal":{"name":"Nippon Laser Igakkaishi","volume":"67 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89046749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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