Interventional radiology (Higashimatsuyama-shi (Japan)最新文献

{"title":"Efficacy of the Stripped AFX Aortic Cuff as a Scaffolding Bare Stent to Facilitate the Expansion of the Thoracoabdominal and Visceral Aorta during Thoracic Endovascular Aortic Repair for Complicated Stanford Type B Aortic Dissection.","authors":"Shinichi Iwakoshi, Shoji Sakaguchi, Mai Murata, Tomoki Nagata, Akimitsu Tanaka, Ryosuke Kametani, Arisa Kameda, Shinsaku Maeda, Takeshi Sato, Hideyuki Nishiofuku, Shigeo Ichihashi, Toshihiro Tanaka, Kimihiko Kichikawa","doi":"10.22575/interventionalradiology.2022-0022","DOIUrl":"10.22575/interventionalradiology.2022-0022","url":null,"abstract":"<p><strong>Purpose: </strong>During thoracic endovascular aortic repair for complicated Stanford type B aortic dissection, large bare stent placement for the abdominal aorta is sometimes necessary. In smaller abdominal aortic diameter cases, we used the stripped AFX aortic cuff as a scaffolding bare stent rather than the Zenith Dissection Endovascular Stent, which is a commercially available, large bare stent. In this study, we evaluated the feasibility of the stripped AFX aortic cuff and experiments were conducted to compare the stripped AFX and the Zenith Dissection Endovascular Stent.</p><p><strong>Material and method: </strong>The type B aortic dissection patients treated with thoracic endovascular aortic repair using stripped AFX at three institutions between January 2014 and December 2017 were retrospectively reviewed. Clinical data, including technical success, perioperative complication, and overall survival, were evaluated. The experiment assessed the chronic outward force that reflected the load acting on the artery wall from the stent.</p><p><strong>Result: </strong>Eight cases (seven males) were reviewed. The median (interquartile range, IQR) age of the patients was 60 years (46.3-70.3). The technical success rate was 100%, and no perioperative complications were observed. The median (IQR) follow-up period was 28.9 months (17.5-31.5). During the follow-up, one patient died of septic shock unrelated to aortic events. The median (IQR) diameter of the stripped AFX on the last follow-up CT was 23.5 mm (21.9-25.0). The chronic outward force of the Zenith Dissection Endovascular Stent was two to three times that of the stripped AFX.</p><p><strong>Conclusions: </strong>The stripped AFX aortic cuff is feasible and safe as a scaffolding stent during thoracic endovascular aortic repair for Stanford Type B aortic dissection.</p>","PeriodicalId":73503,"journal":{"name":"Interventional radiology (Higashimatsuyama-shi (Japan)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11336237/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142037924","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":"Effectiveness of Embolization for Pulmonary Arteriovenous Malformations from Distal of the Last Normal Branch of the Pulmonary Artery.","authors":"Junya Ichiki, Koji Yamasaki, Ryusei Zako, Takeshi Wada, Kanta Kitagawa, Takaki Hirano, Aiko Kugimiya, Shuhei Inoue, Kotaro Yamamoto, Ryosuke Usui, Mitsuhiro Kinoshita, Masayoshi Yamamoto, Hiroshi Kondo","doi":"10.22575/interventionalradiology.2023-0014","DOIUrl":"10.22575/interventionalradiology.2023-0014","url":null,"abstract":"<p><strong>Purpose: </strong>This retrospective study of patients with pulmonary arteriovenous malformations aims to assess the efficacy of embolization distal to the origin of the last normal branch of the pulmonary artery.</p><p><strong>Material and methods: </strong>A total of 30 consecutive patients with 38 untreated pulmonary arteriovenous malformations underwent coil embolization distal to the origin of the last normal branch of the pulmonary artery between September 2015 and October 2021. The median (interquartile range) age of patients (5 males, 25 females) was 59 years (50-68 years old), and the median (interquartile range) sizes of the feeding artery and sac were 2.9 mm (2.3-3.8 mm) and 6.7 mm (5.4-9.7 mm), respectively. The technical success rate, persistence rate, and treatment-related complications were evaluated. Technical success was defined as the inability to identify the draining vein on feeding arteriography after coil embolization. Persistence was assessed using time-resolved magnetic resonance angiography.</p><p><strong>Results: </strong>Coil embolization was successful in all patients (100%). There was no persistence during a median (interquartile range) follow-up period of 23 months (10-45 months) for the 38 pulmonary arteriovenous malformations embolized with coils. No major complications were reported. Only minor complications following embolization occurred in 4 of 36 sessions, including local pain in 2 sessions (6%) and hemosputum in 2 sessions (6%).</p><p><strong>Conclusions: </strong>Embolization distal to the origin of the last normal branch of the pulmonary artery is effective in preventing the persistence of pulmonary arteriovenous malformations.</p>","PeriodicalId":73503,"journal":{"name":"Interventional radiology (Higashimatsuyama-shi (Japan)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11336261/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142037923","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":"Midterm Outcome of Branch Vessel Stenting for Superior Mesenteric Artery Malperfusion Complicating with Acute Aortic Dissection.","authors":"Kensuke Uotani, Masato Yamaguchi, Takuya Okada, Tomoyuki Gentsu, Noriaki Sakamoto, Ryota Kawasaki, Takanori Taniguchi, Hirotaka Tomimatsu, Koji Sugimoto, Takamichi Murakami","doi":"10.22575/interventionalradiology.2022-0045","DOIUrl":"10.22575/interventionalradiology.2022-0045","url":null,"abstract":"<p><strong>Purpose: </strong>To investigate the midterm stent patency and patient prognosis after stenting for superior mesenteric artery malperfusion complicating with acute aortic dissection.</p><p><strong>Material and methods: </strong>Thirteen patients who underwent branch vessel stenting for superior mesenteric artery malperfusion between 2011 and 2021 in six institutions were retrospectively reviewed. By comparing pre- and postoperative computed tomography scans in the same plane, the length of the stent implanted in the superior mesenteric artery and the stent-to-vessel diameter ratio were measured. The technical and clinical success of stenting, midterm patient prognosis, and stent patency were evaluated.</p><p><strong>Results: </strong>Superior mesenteric artery stenting was technically successful in 12 patients (92.3%). The mean length of the stents implanted in the superior mesenteric artery was 61.3 ± 39.4 mm (range, 14-127 mm). The mean proximal and distal stent-to-vessel diameter ratios were 1.02 ± 0.16 and 1.30 ± 0.42, respectively. A weak correlation was found between the length of the stents implanted in the superior mesenteric artery and the distal stent-to-vessel diameter ratio (R² = 0.34). Two major complications occurred, one of which resulted in death within 30 days, and 12 (92.3%) were clinically successful. Of these 12 patients, no recurrent intestinal ischemia occurred during the follow-up duration (mean, 45.2 months). Partial occlusion of the stent distal edge without intestinal ischemia was observed in one patient (distal stent-to-vessel diameter ratio = 2.33) 42 months after stenting. The overall survival rate and primary stent patency rate were 84.6% and 91.7%, respectively.</p><p><strong>Conclusions: </strong>Midterm stent patency and survival after superior mesenteric artery stenting for malperfusion were acceptable.</p>","PeriodicalId":73503,"journal":{"name":"Interventional radiology (Higashimatsuyama-shi (Japan)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11336238/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142037926","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":"Transarterial and Transvenous Approach for the Embolization of Arteriovenous Fistula between the Hepatic Arteries and Inferior Vena Cava Associated with Liver Abscess Due to Cholangitis.","authors":"Ryo Aoki, Yusuke Kobayashi, Kento Nakajima, Hiroyuki Kamide, Haruo Miwa, Hiromi Tsuchiya, Ritsuko Oishi, Akihiro Inoue, Sayo Irie, Yuka Misumi, Harumi Mochizuki, Shigeru Magami, Kazuya Sugimori, Zenjiro Sekikawa, Daisuke Utsunomiya","doi":"10.22575/interventionalradiology.2023-0046","DOIUrl":"10.22575/interventionalradiology.2023-0046","url":null,"abstract":"<p><p>An 87-year-old woman was hospitalized for liver abscesses and cholangitis due to common bile duct stones. She developed worsening anemia and abdominal pain. Contrast-enhanced computed tomography revealed an intrahepatic pseudoaneurysm and an arteriovenous fistula between the hepatic arteries and inferior vena cava. The initial endovascular treatment was transarterial embolization. The pseudoaneurysm was embolized with an N-butyl-2-cyanoacrylate mixture, and the inflow arteries of the arteriovenous fistula were embolized with microcoils. However, the residual perfusion of the arteriovenous fistula remained. A second endovascular treatment was performed using the transarterial and transvenous approaches. The inflow arteries were embolized using microcoils and gelatin sponges and the dominant outflow vein was embolized using microcoils, resulting in the disappearance of the perfusion in the arteriovenous fistula.</p>","PeriodicalId":73503,"journal":{"name":"Interventional radiology (Higashimatsuyama-shi (Japan)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11336240/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142037927","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":"Large-bore Chest Tube Insertion: Seldinger Technique over Two Guidewires.","authors":"Atsushi Saiga, Takeshi Aramaki, Rui Sato","doi":"10.22575/interventionalradiology.2023-0030","DOIUrl":"10.22575/interventionalradiology.2023-0030","url":null,"abstract":"<p><strong>Purpose: </strong>Large-bore chest tube insertion is commonly performed using the trocar technique and blunt dissection; however, large-bore chest tube can cause severe visceral injury due to penetration, which is a life-threatening complication. Conversely, small-bore chest tubes can be safely inserted using the Seldinger technique; however, small-bore chest tubes are prone to blockage, especially in empyema cases. Therefore, this study aimed to demonstrate large-bore chest tube insertion using the Seldinger technique over two guidewires following image-guided puncture.</p><p><strong>Material and methods: </strong>We started performing large-bore chest tube insertion using the Seldinger technique over two guidewires following image-guided puncture in February 2022. Demographic data and procedural details, such as chest tube size, dilator size, procedure time, and type of image-guided puncture, of patients who underwent this procedure between February 2022 and March 2023 were retrospectively reviewed. Technical success was defined as the successful drainage of the pleural cavity.</p><p><strong>Results: </strong>This method was used for performing ten procedures in nine patients who presented with empyema, pneumothorax, and pulmonary fistula. The insertion of a large-bore chest tube with a size ranging from 18- to 24-French was successfully performed in all cases without any complications. The median procedure time was 17.5 (first quartile-third quartile, 13.5-28.0) min.</p><p><strong>Conclusions: </strong>Large-bore chest tube insertion using the Seldinger technique over two guidewires may be used as an alternative to conventional methods.</p>","PeriodicalId":73503,"journal":{"name":"Interventional radiology (Higashimatsuyama-shi (Japan)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11336239/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142037925","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":"The Guidelines for Percutaneous Transhepatic Portal Vein Embolization: English Version.","authors":"Masayuki Hashimoto, Yasufumi Ouchi, Shinsaku Yata, Akira Yamamoto, Kojiro Suzuki, Asuka Kobayashi","doi":"10.22575/interventionalradiology.2022-0031","DOIUrl":"10.22575/interventionalradiology.2022-0031","url":null,"abstract":"<p><p>Preoperative portal vein embolization is a beneficial option to reduce the risk of postoperative liver failure by promoting the growth of the future liver remnant. In particular, a percutaneous transhepatic procedure (percutaneous transhepatic portal vein embolization) has been developed as a less-invasive approach. Although percutaneous transhepatic portal vein embolization is widely recognized as a safe procedure, various complications, including rare but fatal adverse events, have been reported. Currently, there are no prospective clinical trials regarding percutaneous transhepatic portal vein embolization procedures and no standard guidelines for the PTPE procedure in Japan. As a result, various methods and various embolic materials are used in each hospital according to each physician's policy. The purpose of these guidelines is to propose appropriate techniques at present and to identify issues that should be addressed in the future for safer and more reliable percutaneous transhepatic portal vein embolization techniques.</p>","PeriodicalId":73503,"journal":{"name":"Interventional radiology (Higashimatsuyama-shi (Japan)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10955465/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140208421","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":"Endovascular Treatment of Postpancreatectomy Hemorrhage from the Retroportal Artery with Compression of the Celiac Trunk by the Median Arcuate Ligament: A Case Report.","authors":"Taku Kotera, Masakatsu Tsurusaki, Ryohei Kozuki, Atsushi Urase, Ayumi Hirayama, Kazunari Ishii","doi":"10.22575/interventionalradiology.2023-0002","DOIUrl":"10.22575/interventionalradiology.2023-0002","url":null,"abstract":"<p><p>Retroportal artery is one of the communicating arteries between the hepatic artery and the superior mesenteric artery, but it is often a small artery and usually unrecognized. We report a 60-year-old man that was successfully treated for postpancreatectomy hemorrhage from the retroportal artery with compression of the celiac trunk by the median arcuate ligament. Following the pancreaticoduodenectomy, the bloody discharge was discovered through the drainage catheter. We underwent transcatheter arterial embolization for the bleeding from the retroportal artery associated with a postoperative pancreatic fistula. Additionally, because a stenosis of the common hepatic artery was discovered, we consequently installed a stent-graft on the common hepatic artery to prevent the liver failure due to decreased hepatic blood flow.</p>","PeriodicalId":73503,"journal":{"name":"Interventional radiology (Higashimatsuyama-shi (Japan)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10955478/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140208418","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":"Double Microballoon-occluded Ethanol Embolization for Pelvic Arteriovenous Malformation: A Case Report.","authors":"Keigo Osuga, Naoki Yokota, Kazuhiro Yamamoto, Hiroki Matsutani, Kiyohito Yamamoto, Hiroshi Juri, Hideki Ozawa, Takahiro Katsumata","doi":"10.22575/interventionalradiology.2023-0021","DOIUrl":"10.22575/interventionalradiology.2023-0021","url":null,"abstract":"<p><p>A 40-year-old man was incidentally found to have right-sided pelvic arteriovenous malformation (AVM) with an aneurysmal dominant outflow vein (DOV). The AVM had two main feeding arteries forming a cluster of fine vessels shunt to the DOV. As transvenous approach was impossible due to anatomical difficulty, transarterial ethanol embolization was performed under simultaneous double microballoon occlusion of the two feeding arteries in combination with protective coil embolization of the prostatic branches. Ethanol (13 mL) was intermittently injected from both microballoon catheters until the AV shunt was completely occluded. At 1-year follow-up, contrast-enhanced CT revealed shrinkage of the thrombosed DOV without any symptom. Our case demonstrated the usefulness of simultaneous double microballoon-occluded ethanol embolization for treating a localized pelvic AVM with a few feeding arteries.</p>","PeriodicalId":73503,"journal":{"name":"Interventional radiology (Higashimatsuyama-shi (Japan)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10955464/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140208387","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 Life-threatening Rupture of Small Renal Angiomyolipoma with an Unidentified Intratumoral Aneurysm during Follow-up.","authors":"Masashi Tajiri, Tomoyuki Gentsu, Masato Yamaguchi, Koji Sasaki, Eisuke Ueshima, Takuya Okada, Koji Sugimoto, Takamichi Murakami","doi":"10.22575/interventionalradiology.2023-0013","DOIUrl":"10.22575/interventionalradiology.2023-0013","url":null,"abstract":"<p><p>We report a case of a life-threatening ruptured renal angiomyolipoma (AML) that did not meet the criteria for prophylactic treatment (tumor >4 cm or intratumoral aneurysm >5 mm) during follow-up. A woman in her 70s was followed up for a 2.5-cm AML with a rich vascular component. An intratumoral aneurysm >5 mm was not identified for 2 years. She complained of a sudden abdominal pain with hypotension, and contrast-enhanced computed tomography revealed a retroperitoneal hematoma with contrast media extravasation from an intratumoral aneurysm. Emergency transcatheter arterial embolization was successfully performed using N-butyl cyanoacrylate glue. Rupture can occur in small AMLs or in AMLs not identified with intratumoral aneurysms during follow-up. AMLs with a rich vascular component at the kidney surface are more likely to rupture.</p>","PeriodicalId":73503,"journal":{"name":"Interventional radiology (Higashimatsuyama-shi (Japan)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10955477/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140208386","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":"Transarterial Therapy for Hepatocellular Carcinoma Invading the Bile Duct.","authors":"Shiro Miyayama","doi":"10.22575/interventionalradiology.2023-0019","DOIUrl":"10.22575/interventionalradiology.2023-0019","url":null,"abstract":"<p><p>Hepatocellular carcinoma invading the bile duct (bile duct tumor thrombus) is an unfavorable condition. Although overall survival following surgical resection among patients with hepatocellular carcinoma with bile duct tumor thrombus is significantly better than that among those treated with transarterial chemoembolization or chemotherapy, surgical resection can be indicated for selected patients. Additionally, systemic therapy is indicated only for patients with Child-Pugh class A. Therefore, transarterial therapy plays an essential role in the treatment of bile duct tumor thrombus. Transarterial chemoembolization with iodized oil and gelatin sponge particles is an established first-line transarterial treatment that can necrotize most bile duct tumor thrombi. However, we should pay attention to symptoms caused by intraductal hemorrhage during transarterial chemoembolization and the sloughing of necrotized bile duct tumor thrombi.</p>","PeriodicalId":73503,"journal":{"name":"Interventional radiology (Higashimatsuyama-shi (Japan)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10957244/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140208422","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}