1.Comparison of 19-gauge conventional and Franseen needles for the diagnosis of lymphadenopathy and classification of malignant lymphoma using endoscopic ultrasound fine-needle aspiration
Mitsuru OKUNO ; Keisuke IWATA ; Tsuyoshi MUKAI ; Yusuke KITO ; Takuji TANAKA ; Naoki WATANABE ; Senji KASAHARA ; Yuhei IWASA ; Akihiko SUGIYAMA ; Youichi NISHIGAKI ; Yuhei SHIBATA ; Junichi KITAGAWA ; Takuji IWASHITA ; Eiichi TOMITA ; Masahito SHIMIZU
Clinical Endoscopy 2024;57(3):364-374
		                        		
		                        			 Background/Aims:
		                        			Endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) using a 19-gauge needle is an efficient sampling method for the diagnosis of lymphadenopathy. This study compared 19-gauge conventional and Franseen needles for the diagnosis of lymphadenopathy and classification of malignant lymphoma (ML). 
		                        		
		                        			Methods:
		                        			Patient characteristics, number of needle passes, puncture route, sensitivity, specificity, and accuracy of cytology/histology for lymphadenopathy were analyzed in patients diagnosed with lymphadenopathy by EUS-FNA using conventional or Franseen needles. 
		                        		
		                        			Results:
		                        			Between 2012 and 2022, 146 patients met the inclusion criteria (conventional [n=70] and Franseen [n=76]). The median number of needle passes was significantly lower in the conventional group than in the Franseen group (3 [1–6] vs. 4 [1–6], p=0.023). There were no significant differences in cytological/histological diagnoses between the two groups. For ML, the immunohistochemical evaluation rate, sensitivity of flow cytometry, and cytogenetic assessment were not significantly different in either group. Bleeding as adverse events (AEs) were observed in three patients in the Franseen group. 
		                        		
		                        			Conclusions
		                        			Both the 19-gauge conventional and Franseen needles showed high accuracy in lymphadenopathy and ML classification. Considering sufficient tissue collection and the avoidance of AEs, the use of 19-gauge conventional needles seems to be a good option for the diagnosis of lymphadenopathy. 
		                        		
		                        		
		                        		
		                        	
2.Impact of adaptive radiotherapy on survival in locally advanced nasopharyngeal carcinoma treated with concurrent chemoradiotherapy
Yusuke UCHINAMI ; Koichi YASUDA ; Hideki MINATOGAWA ; Yasuhiro DEKURA ; Noboru NISHIKAWA ; Rumiko KINOSHITA ; Kentaro NISHIOKA ; Norio KATOH ; Takashi MORI ; Manami OTSUKA ; Naoki MIYAMOTO ; Ryusuke SUZUKI ; Keiji KOBASHI ; Yasushi SHIMIZU ; Jun TAGUCHI ; Nayuta TSUSHIMA ; Satoshi KANO ; Akihiro HOMMA ; Hidefumi AOYAMA
Radiation Oncology Journal 2024;42(1):74-82
		                        		
		                        			 Purpose:
		                        			To investigate the clinical significance of adaptive radiotherapy (ART) in locally advanced nasopharyngeal carcinoma treated with intensity-modulated radiotherapy (IMRT). 
		                        		
		                        			Materials and Methods:
		                        			Eligible patients were treated with concurrent chemoradiotherapy using IMRT. Planning computed tomography in ART was performed during radiotherapy, and replanning was performed. Since ART was started in May 2011 (ART group), patients who were treated without ART up to April 2011 (non-ART group) were used as the historical control. The Kaplan-Meier method was used to calculate overall survival (OS), locoregional recurrence-free survival (LRFS), progression-free survival (PFS), and distant metastasis-free survival (DMFS). LRFS for the primary tumor (LRFS_P) and regional lymph node (LRFS_LN) were also studied for more detailed analysis. Statistical significance was evaluated using the log-rank test for survival. 
		                        		
		                        			Results:
		                        			The ART group tended to have higher radiation doses. The median follow-up period was 127 months (range, 10 to 211 months) in the non-ART group and 61.5 months (range, 5 to 129 months) in the ART group. Compared to the non-ART group, the ART group showed significantly higher 5-year PFS (53.8% vs. 81.3%, p = 0.015) and LRFS (61.2% vs. 85.3%, p = 0.024), but not OS (80.7% vs. 80.8%, p = 0.941) and DMFS (84.6% vs. 92.7%, p = 0.255). Five-year LRFS_P was higher in the ART group (61.3% vs. 90.6%, p = 0.005), but LRFS_LN did not show a significant difference (91.9% vs. 96.2%, p = 0.541). 
		                        		
		                        			Conclusion
		                        			Although there were differences in the patient backgrounds between the two groups, this study suggests the potential effectiveness of ART in improving locoregional control, especially in the primary tumor.  
		                        		
		                        		
		                        		
		                        	
3.Differences in mechanical thrombectomy for acute ischemic stroke on weekdays versus nights/ weekends in a Japanese primary stroke core center
Naoki OMURA ; Hiroto KAKITA ; Yusuke FUKUO ; Fuminori SHIMIZU
Journal of Cerebrovascular and Endovascular Neurosurgery 2023;25(3):297-305
		                        		
		                        			 Objective:
		                        			The term “weekend effect” refers to an increase in the mortality rate for hospitalizations occurring on weekends versus weekdays. In this study, we investigated whether such an effect exists in patients undergoing mechanical thrombectomy for acute ischemic stroke with large vessel occlusion (currently the standard treatment for this condition) at a single center in Japan. 
		                        		
		                        			Methods:
		                        			We surveyed 151 patients who underwent mechanical thrombectomy for acute ischemic stroke with large vessel occlusion (75 and 76 patients were treated during daytime and nighttime, respectively) from January 2019 to June 2021. The items evaluated in this analysis were the rate of modified Rankin Scale ≤2 or prestroke scale, mortality, and procedural treatment time. 
		                        		
		                        			Results:
		                        			The rates of modified Rankin Scale ≤2 or prestroke scale and mortality at 90 days after treatment did not differ significantly between daytime and nighttime (41.3% vs. 29.0%, p=0.11; 14.7% vs. 11.8%, p=0.61, respectively). The door-to-groin time tended to be shorter during daytime versus nighttime (57 [IQR: 42.5–70] min vs. 70 [IQR: 55–82]) min, p=0.0507). 
		                        		
		                        			Conclusions
		                        			This study did not reveal differences in treatment outcome between daytime and nighttime in patients undergoing mechanical thrombectomy for acute ischemic stroke with large vessel occlusion. Therefore, the “weekend effect” was not observed in our institution. 
		                        		
		                        		
		                        		
		                        	
4.A Case of Mitral Mechanical Valve Thrombosis after Switching to Edoxaban
Yasuyuki KANNO ; Yasuyuki KATO ; Hidetaka YAMAUCHI ; Taiyo JINNO ; Yusuke DATE ; Kenichi SASAKI ; Atsushi SHIMIZU ; Hiroshi KIYAMA
Japanese Journal of Cardiovascular Surgery 2020;49(5):288-290
		                        		
		                        			
		                        			A 65-year-old man who had been taking warfarin for a mitral mechanical valve, was transported to our hospital for acute heart failure 3 months after switching to edoxaban. The fluoroscopy revealed restriction of the mechanical valve opening, and the catheterization showed an increased pressure gradient of the mechanical valve. The patient was diagnosed with valve thrombosis, and emergency redo mitral valve replacement was performed. The patient recovered well without complication. In cases with mechanical heart valves, sufficient explanation and education about warfarin administration is mandatory for patients' home doctors as well as patients and their families.
		                        		
		                        		
		                        		
		                        	
5.10-11 Having Residents under the COVID-19 Pandemic - Experiences in the Spring of 2020
Kayoko MATSUSHIMA ; Eriko OZONO ; Yusuke MATSUZAKA ; Syoko ASHIZUKA ; Noriko SHIGETOMI ; Toshimasa SHIMIZU ; Masafumi HARAGUCHI ; Takeshi WATANABE ; Takashi MIYAMOTO ; Hayato TAKAYAMA ; Kenichi KANEKO ; Yuji KOIDE ; Atsuko NAGATANI ; Hisayuki HAMADA
Medical Education 2020;51(3):331-333
		                        		
		                        		
		                        		
		                        	
6.Proximal ligation after the side-to-end anastomosis recovery technique for lymphaticovenous anastomosis
Yushi SUZUKI ; Hisashi SAKUMA ; Jun IHARA ; Yusuke SHIMIZU
Archives of Plastic Surgery 2019;46(4):344-349
		                        		
		                        			
		                        			BACKGROUND: Lymphaticovenous anastomosis is an important surgical treatment for lymphedema, with lymphaticovenous side-to-end anastomosis (LVSEA) and lymphaticovenous end-to-end anastomosis being the most frequently performed procedures. However, LVSEA can cause lymphatic flow obstruction because of regurgitation and tension in the anastomosis. In this study, we introduce a novel and simple procedure to overcome this problem. METHODS: Thirty-five female patients with lower extremity lymphedema who underwent lymphaticovenous anastomosis at our hospital were included in this study. Eighty-five LVSEA procedures were performed, of which 12 resulted in insufficient venous blood flow. For these 12 anastomoses, the proximal lymphatic vessel underwent clipping after the anastomotic procedure and the venous inflow was monitored. Subsequently, the proximal ligation after side-to-end anastomosis recovery (PLASTER) technique, which involves ligating the proximal side of the lymphatic vessel, was applied. A postoperative evaluation was performed using indocyanine green 6 months after surgery. RESULTS: Despite the clipping procedure, three of the 12 anastomoses still showed poor venous inflow. Therefore, it was not possible to apply the PLASTER technique in those cases. Among the nine remaining anastomoses in which the PLASTER technique was applied, three (33%) were patent. CONCLUSIONS: Our findings show that achieving patent anastomosis is challenging when postoperative venous inflow is poor. We achieved good results by performing proximal ligation after LVSEA. Thus, the PLASTER technique is a particularly useful recovery technique when LVSEA does not result in good run-off.
		                        		
		                        		
		                        		
		                        			Edema
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Indocyanine Green
		                        			;
		                        		
		                        			Ligation
		                        			;
		                        		
		                        			Lower Extremity
		                        			;
		                        		
		                        			Lymphatic Diseases
		                        			;
		                        		
		                        			Lymphatic Vessels
		                        			;
		                        		
		                        			Lymphedema
		                        			;
		                        		
		                        			Microsurgery
		                        			
		                        		
		                        	
7.Indocyanine green fluorescence videoangiography for reliable variations of supraclavicular artery flaps
Yushi SUZUKI ; Yusuke SHIMIZU ; Shogo KASAI ; Shun YAMAZAKI ; Masashi TAKEMARU ; Takuya KITAMURA ; Saori KAWAKAMI ; Takeshi TAMURA
Archives of Plastic Surgery 2019;46(4):318-323
		                        		
		                        			
		                        			BACKGROUND: Pedicled flaps are useful for reconstructive surgery. Previously, we often used vascularized supraclavicular flaps, especially for head and neck reconstruction, but then shifted to using thoracic branch of the supraclavicular artery (TBSA) flaps. However, limited research exists on the anatomy of TBSA flaps and on the use of indocyanine green (ICG) fluorescence videoangiography for supraclavicular artery flaps. We utilized ICG fluorescence videoangiography to harvest reliable flaps in reconstructive operations, and describe the results herein. METHODS: Data were retrospectively reviewed from six patients (five men and one woman: average age, 54 years; range, 48–60 years) for whom ICG videoangiography was performed to observe the skin perfusion of a supraclavicular flap after it was raised. Areas where the flap showed good enhancement were considered to be favorable for flap survival. The observation of ICG dye indicated good skin perfusion, which is predictive of flap survival; therefore, we trimmed any areas without dye filling and used the remaining viable part of the flap. RESULTS: The flaps ranged in size from 13×5.5 cm to 17×6.5 cm. One patient received a conventional supraclavicular flap, four patients received a TBSA flap, and one patient received a flap that was considered to be intermediate between a supraclavicular flap and a TBSA flap. The flaps completely survived in all cases, and no flap necrosis was observed. CONCLUSIONS: The TBSA flap is very useful in reconstructive surgery, and reliable flaps could be obtained by using ICG fluorescence videoangiography intraoperatively.
		                        		
		                        		
		                        		
		                        			Arteries
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Fluorescence
		                        			;
		                        		
		                        			Head
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Indocyanine Green
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Neck
		                        			;
		                        		
		                        			Necrosis
		                        			;
		                        		
		                        			Perfusion
		                        			;
		                        		
		                        			Reconstructive Surgical Procedures
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Skin
		                        			;
		                        		
		                        			Surgical Flaps
		                        			
		                        		
		                        	
8.Utility of topical epinephrine for determining the resection range of eyelid sebaceous carcinoma with dermatitis.
Tomoki KIUCHI ; Yusuke SHIMIZU ; Shun YAMAZAKI ; Tsuyoshi AWAZAWA ; Kazuo KISHI
Archives of Plastic Surgery 2018;45(3):289-290
		                        		
		                        			
		                        			No abstract available.
		                        		
		                        		
		                        		
		                        			Dermatitis*
		                        			;
		                        		
		                        			Epinephrine*
		                        			;
		                        		
		                        			Eyelids*
		                        			
		                        		
		                        	
9.Complete coverage of a tissue expander by a musculofascial pocket including the sternalis muscle during breast reconstruction
Naohiro ISHII ; Yusuke SHIMIZU ; Jiro ANDO ; Michiko HARAO ; Masaru TAKEMAE ; Kazuo KISHI
Archives of Plastic Surgery 2018;45(1):89-90
		                        		
		                        			
		                        			No abstract available.
		                        		
		                        		
		                        		
		                        			Breast
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Mammaplasty
		                        			;
		                        		
		                        			Tissue Expansion Devices
		                        			
		                        		
		                        	
10.A novel technique for large and ptotic breast reconstruction using a latissimus dorsi myocutaneous flap set at the posterior aspect, combined with a silicone implant, following tissue expander surgery.
Naohiro ISHII ; Jiro ANDO ; Yusuke SHIMIZU ; Kazuo KISHI
Archives of Plastic Surgery 2018;45(5):484-489
		                        		
		                        			
		                        			Large and ptotic breast reconstruction in patients who are not candidates for a transverse rectus abdominalis myocutaneous flap and revision surgery for the contralateral breast remains challenging. We developed a novel breast reconstruction technique using a latissimus dorsi myocutaneous (LD m-c) flap set at the posterior aspect of the reconstructed breast, combined with an anatomical silicone breast implant (SBI), following tissue expander surgery. We performed the proposed technique in four patients, in whom the weight of the resected tissue during mastectomy was >500 g and the depth of the inframammary fold (IMF) was >3 cm. After over-expansion of the lower portion of the skin envelope by a tissue expander, the LD m-c flap was transferred to cover the lower portion of the breast defect and to achieve a ptotic contour, with the skin paddle set at the posterior aspect of the reconstructed breast. An SBI was then placed in the rest of the breast defect after setting the LD m-c flap. No major complications were observed during the follow-up period. The proposed technique resulted in symmetrical and aesthetically satisfactory breasts with deep IMFs, which allowed proper fitting of the brassiere, following large and ptotic breast reconstruction.
		                        		
		                        		
		                        		
		                        			Breast Implants
		                        			;
		                        		
		                        			Breast*
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Follow-Up Studies
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Mammaplasty*
		                        			;
		                        		
		                        			Mastectomy
		                        			;
		                        		
		                        			Myocutaneous Flap*
		                        			;
		                        		
		                        			Reconstructive Surgical Procedures
		                        			;
		                        		
		                        			Silicon*
		                        			;
		                        		
		                        			Silicones*
		                        			;
		                        		
		                        			Skin
		                        			;
		                        		
		                        			Superficial Back Muscles*
		                        			;
		                        		
		                        			Surgery, Plastic
		                        			;
		                        		
		                        			Tissue Expansion Devices*
		                        			;
		                        		
		                        			Tissue Transplantation
		                        			
		                        		
		                        	
            

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