{"title":"A Multifaceted Approach to Abdominal Aortic Aneurysm.","authors":"Katsuyuki Hoshina","doi":"10.3400/avd.ra.24-00137","DOIUrl":"10.3400/avd.ra.24-00137","url":null,"abstract":"<p><p>The underlying mechanisms of abdominal aortic aneurysms (AAAs) are not fully understood. Given the multifactorial nature of AAA development and progression, a comprehensive approach is essential. Throughout my academic career, I conducted various studies on AAA. To better understand this mechanism, I initially developed an elastase-infused rat AAA model and applied it to nanoparticle drug delivery systems. While open surgery has traditionally been the standard treatment for AAA, endovascular aneurysm repair (EVAR) has seen significant advancements over the past 25 years. However, insufficient evidence exists regarding this novel treatment, particularly in Japan. To address this issue, we analyzed extensive datasets on EVAR using various registries, including the Japanese Committee for Stent Graft Management. Furthermore, through medical-engineering collaboration, simulation methods were utilized to generate evidence addressing clinical questions encountered in practice.</p>","PeriodicalId":7995,"journal":{"name":"Annals of vascular diseases","volume":"18 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11774523/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143057709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Acute Effect of Two Different Hand Exercises on Vessel Size in Patients Undergoing Arteriovenous Fistula Creation.","authors":"Yuthapong Wongmahisorn, Pong Kanchanasuttirak, Waigoon Stapanavatr, Yupadee Fusakul","doi":"10.3400/avd.oa.24-00136","DOIUrl":"https://doi.org/10.3400/avd.oa.24-00136","url":null,"abstract":"<p><p><b>Objectives:</b> We primarily aimed to compare the acute effects of hand-squeezing exercises, with and without tourniquet-like compression, on vessel size 5 minutes post-exercise in patients after arteriovenous fistula (AVF) creation. The secondary aim was to assess differences in AVF blood flow rates between the 2 interventions. <b>Methods:</b> A randomized study was conducted at a university hospital in Bangkok, Thailand, from October 2018 to September 2023. Seventy-eight participants, 2 weeks post-first-time autogenous AVF creation, were randomized into 2 groups: a non-compression group (n = 39) performing 5 minutes of hand-squeezing exercises and a compression group (n = 39) performing the same exercises with tourniquet-like compression. Ultrasound measured venous diameter and blood flow rates pre- and post-exercise. <b>Results:</b> Both groups showed increased venous diameter, but the difference between the groups was not statistically significant (mean difference: 0.18 mm with compression vs. 0.12 mm without; P = 0.489). Blood flow rates increased significantly in the compression group compared to the non-compression group (mean difference: 171.49 vs. 24.44 mL/min; P = 0.002). <b>Conclusion:</b> Hand-squeezing exercises with tourniquet-like compression significantly improved AVF blood flow rates acutely, supporting its potential to enhance AVF maturation. Further research is needed to assess long-term benefits.</p>","PeriodicalId":7995,"journal":{"name":"Annals of vascular diseases","volume":"18 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12014282/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143966808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Predicting Early Mortality after Thoracic Endovascular Aneurysm Repair: A Machine Learning-Based Decision Tree Analysis.","authors":"Masaki Kano, Toshiya Nishibe, Tsuyoshi Iwasa, Seiji Matsuda, Shinobu Akiyama, Toru Iwahashi, Shoji Fukuda, Yusuke Shimahara, Masayasu Nishibe","doi":"10.3400/avd.oa.25-00009","DOIUrl":"10.3400/avd.oa.25-00009","url":null,"abstract":"<p><p><b>Objectives:</b> Thoracic endovascular aneurysm repair (TEVAR) has revolutionized the treatment of thoracic aortic aneurysms (TAA) by providing a less invasive alternative to open surgery. This study aims to identify risk factors for early mortality following TEVAR for degenerative TAA using a machine learning-based decision tree analysis (DTA). <b>Methods:</b> This retrospective observational study analyzed 79 patients who underwent elective TEVAR to identify predictors of early mortality (within 2 years) using decision tree analysis. The dataset included 36 variables, covering age, sex, nutritional status, comorbidities, inflammation, immune status, and surgical details. The decision tree classifier was developed and validated using Python 3.7 with the scikit-learn toolkit. <b>Results:</b> DTA identified octogenarian status as the strongest predictor of early mortality, followed by poor nutritional status, debranching procedures, and compromised immunity. The model identified 7 terminal nodes, with early mortality risk ranging from 0% to 77.7%. It demonstrated moderate accuracy (65.8%) and high sensitivity (81.0%) but had relatively low specificity (60.3%), effectively identifying high-risk patients. <b>Conclusions:</b> Machine learning-based DTA identified key predictors of early mortality following TEVAR, including octogenarian status, poor nutritional status, compromised immunity, and debranching procedures. The model provides an interpretable risk stratification tool, but its clinical applicability requires further validation.</p>","PeriodicalId":7995,"journal":{"name":"Annals of vascular diseases","volume":"18 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12117201/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144172457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Successful Treatment of Type 3b Endoleak after AFX Using TREO.","authors":"Tobuhiro Nita, Hironori Baba, Yuji Hironaka, Gen Shinohara, Yoshie Ochiai, Shigehiko Tokunaga","doi":"10.3400/avd.cr.25-00016","DOIUrl":"10.3400/avd.cr.25-00016","url":null,"abstract":"<p><p>Late postoperative type 3 endoleaks associated with the AFX (Endologix, Irvine, CA, USA) stent-graft are commonly reported. The AFX's endoskeletal design raises concerns about wire entrapment between its frame and fabric, as well as a risk of type 1a endoleak. An 84-year-old man with prior EVAR using the AFX presented with a type 3b endoleak 4 years postoperatively. He underwent relining with the TREO stent-graft (Terumo Aortic, Sunrise, FL, USA), which enabled easy contralateral gate cannulation and secured a long proximal landing zone. The TREO appears to be a viable option for relining the AFX in type 3b endoleak cases.</p>","PeriodicalId":7995,"journal":{"name":"Annals of vascular diseases","volume":"18 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12146207/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144257211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Visualization of Vascular Inflammation Using Diffusion-Weighted Whole-Body Imaging with Background Body Signal Suppression.","authors":"Ayaka Ohno, Kenjuro Higo, Sawako Hiwatari, Takeko Kawabata, Hitoshi Nakashima, Mitsuru Ohishi","doi":"10.3400/avd.cr.25-00030","DOIUrl":"10.3400/avd.cr.25-00030","url":null,"abstract":"<p><p>Diffusion-weighted whole-body imaging with background body signal suppression has been used to diagnose fever of unknown origin. An 86-year-old man who underwent bile duct jejunostomy for bile duct cancer presented with fever (body temperature, 40°C). <i>Escherichia coli</i> was detected in blood cultures. Diffusion-weighted whole-body imaging with background body signal suppression revealed accumulation in the aortic arch. Therefore, infectious aortitis secondary to retrograde cholangitis was diagnosed. The patient was treated with antibiotics, and the aortic arch accumulation disappeared. Diffusion-weighted whole-body imaging with background body signal suppression is a useful modality for diagnosing vasculitis and assessing treatment effectiveness.</p>","PeriodicalId":7995,"journal":{"name":"Annals of vascular diseases","volume":"18 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12370543/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144939717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hybrid Approach for Multiple Visceral Aneurysms with Isolated Dissection at the Superior Mesenteric Artery: A Case Report.","authors":"Kiyoshi Chiba, Yoshiki Yamasaki, Masahiro Tomita, Satoshi Kinebuchi, Takuma Fukunishi, Masahide Komagamine, Daijyun Tomimoto, Hiroshi Nishimaki, Kan Nawata","doi":"10.3400/avd.cr.25-00011","DOIUrl":"10.3400/avd.cr.25-00011","url":null,"abstract":"<p><p>A 59-year-old patient was undergoing careful monitoring of an isolated superior mesenteric artery dissection discovered 6 years prior. He was admitted after outpatient imaging revealed multiple visceral aneurysms including common hepatic and splenic artery aneurysms that had enlarged. Based on anatomical reasons and the past history, the splenic artery aneurysm was treated with endovascular therapy, while the common hepatic artery aneurysm was resected, and blood flow reconstruction was performed. The patient was discharged without any complications. Visceral artery aneurysms have diverse locations and morphologies, illustrating the importance of treatment strategies that consider the blood flow to the organs.</p>","PeriodicalId":7995,"journal":{"name":"Annals of vascular diseases","volume":"18 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12405000/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144999497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Early Tip Capture Release and Push-Up Technique Using the Valiant Stent Graft System for Aortic Arch Aneurysms.","authors":"Shizuyuki Dohi, Yasutaka Yokoyama, Atsumi Oishi, Yuichiro Sato, Daisuke Endo, Yoichiro Machida, Jiyoung Lee, Taira Yamamoto, Akie Shimada, Minoru Tabata","doi":"10.3400/avd.nmt.25-00069","DOIUrl":"10.3400/avd.nmt.25-00069","url":null,"abstract":"<p><p>During thoracic endovascular aneurysm repair for aortic arch aneurysms, deployment of the stent graft parallel to the aortic neck is crucial to preventing a type Ia endoleak from the proximal end. We report the early tip capture release and push-up technique that comprises early release of the proximal bare stent, which is typically deployed last during stent graft deployment, followed by a push-up maneuver after landing the proximal edge, thus allowing conformation to the aortic morphology. This technique is effective even for complex aortic arch anatomy.</p>","PeriodicalId":7995,"journal":{"name":"Annals of vascular diseases","volume":"18 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12436688/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145079522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Case of Rectal Cancer Discovered Following the Occurrence of a Stent-Graft Infection with <i>Streptococcus gallolyticus</i> after Thoracic Endovascular Aortic Repair.","authors":"Koki Yokawa, Taku Nakagawa, Makoto Kusakizako, Yosuke Tanaka, Tomonori Higuma, Kazunori Yoshida, Yoshihiro Oshima, Hidefumi Obo, Hidetaka Wakiyama","doi":"10.3400/avd.cr.25-00047","DOIUrl":"10.3400/avd.cr.25-00047","url":null,"abstract":"<p><p>A 79-year-old man was admitted for transurethral resection of a bladder cancer. He had a history of thoracic endovascular aortic repair for Stanford type B acute aortic dissection and thoracic aortic aneurysm performed 2 years prior. During hospitalization, computed tomography scan findings raised suspicion of a stent-graft infection. Blood cultures confirmed the presence of <i>Streptococcus gallolyticus</i> ssp. <i>pasteurianus</i>. Gallium scintigraphy supported the diagnosis of a stent-graft infection. A subsequent lower gastrointestinal endoscopy revealed a colorectal cancer in the lower rectum. We then performed surgery for the stent-graft infection.</p>","PeriodicalId":7995,"journal":{"name":"Annals of vascular diseases","volume":"18 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12436686/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145079553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Common Femoral Artery Aneurysm: A Rare Manifestation of Immunoglobulin G4-Related Disease.","authors":"Masaru Yoshikai, Hisashi Sato, Akito Kuwano, Naoyo Nishida","doi":"10.3400/avd.cr.25-00014","DOIUrl":"10.3400/avd.cr.25-00014","url":null,"abstract":"<p><p>We present a case of a common femoral artery aneurysm as an extremely rare manifestation of immunoglobulin G4-related disease (IgG4-RD). A 79-year-old male, who underwent emergency abdominal aortic aneurysm repair at age 60 due to rupture, developed enlarging aneurysms of the right internal iliac artery, the right common femoral artery, and the left common femoral artery. Consequently, the right iliac artery was replaced with a graft extending to the right deep femoral artery, also reconstructing the right internal iliac artery. Histopathological examination of the resected common femoral artery wall confirmed the diagnosis of IgG4-RD.</p>","PeriodicalId":7995,"journal":{"name":"Annals of vascular diseases","volume":"18 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11972850/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143794618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Invasion of Diffuse Large B-Cell Lymphoma to Right Axillary Arterial Graft.","authors":"Koki Yokawa, Yukihiro Imai, Taku Nakagawa, Makoto Kusakizako, Yosuke Tanaka, Tomonori Higuma, Kazunori Yoshida, Yoshihiro Oshima, Hidefumi Obo, Hidetaka Wakiyama","doi":"10.3400/avd.cr.24-00132","DOIUrl":"10.3400/avd.cr.24-00132","url":null,"abstract":"<p><p>A 76-year-old male patient, who had undergone right axillary artery bypass and arch replacement surgery for retrograde type A aortic dissection after thoracic endovascular aortic repair 2 years ago, was referred to our department with complaints of swelling and pain in the right subclavian region. A computed tomography scan suspected an abscess around the bypass graft; however, the culture was negative. Pathological examination indicated a diffuse large B-cell lymphoma (DLBCL) diagnosis. Chemotherapy was not indicated due to the patient's condition, and he passed away after 3 months. DLBCL originating around a graft is extremely rare but crucial for differential diagnosis.</p>","PeriodicalId":7995,"journal":{"name":"Annals of vascular diseases","volume":"18 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11947005/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143727485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}