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Article: Endovascular Stent Graft Placement and Coil Embolization for Splenic Artery Aneurysm with an Anatomical Variant.

Kuwada, Noriaki / Akagi, Daisuke / Watanabe, Yoshiko / Kanaoka, Yuji / Tanemoto, Kazuo

The International journal of angiology : official publication of the International College of Angiology, Inc

2022 Volume 32, Issue 4, Page(s) 273–276

Abstract: A 62-year-old woman with abdominal pain was diagnosed with a splenic artery aneurysm (SAA) and an anatomical variant in the splenic artery (SA) arising from the superior mesenteric artery (SMA) as its first branch. To treat the SAA, the draining artery ... ...

Abstract	A 62-year-old woman with abdominal pain was diagnosed with a splenic artery aneurysm (SAA) and an anatomical variant in the splenic artery (SA) arising from the superior mesenteric artery (SMA) as its first branch. To treat the SAA, the draining artery and a small branch of the SAA were embolized, and then small-diameter stent grafts were deployed from SMA orifice, covering the aberrant origin of the SA and preserving the second branch of SMA. Intraoperative angiography confirmed successful exclusion of the SAA without endoleak or arterial dissection. The stent graft was patent and the aneurysm had shrunk 3.5 years after the operation.
Language	English
Publishing date	2022-02-25
Publishing country	United States
Document type	Case Reports
ZDB-ID	1144390-x
ISSN	1061-1711
ISSN	1061-1711
DOI	10.1055/s-0042-1742588
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Article ; Online: Diamond-like carbon coating to inner surface of polyurethane tube reduces Staphylococcus aureus bacterial adhesion and biofilm formation.

Kuwada, Noriaki / Fujii, Yasuhiro / Nakatani, Tatsuyuki / Ousaka, Daiki / Tsuji, Tatsunori / Imai, Yuichi / Kobayashi, Yasuyuki / Oozawa, Susumu / Kasahara, Shingo / Tanemoto, Kazuo

Journal of artificial organs : the official journal of the Japanese Society for Artificial Organs

2023

Abstract: Staphylococcus aureus is one of the main causative bacteria for polyurethane catheter and artificial graft infection. Recently, we developed a unique technique for coating diamond-like carbon (DLC) inside the luminal resin structure of polyurethane tubes. ...

Abstract	Staphylococcus aureus is one of the main causative bacteria for polyurethane catheter and artificial graft infection. Recently, we developed a unique technique for coating diamond-like carbon (DLC) inside the luminal resin structure of polyurethane tubes. This study aimed to elucidate the infection-preventing effects of diamond-like carbon (DLC) coating on a polyurethane surface against S. aureus. We applied DLC to polyurethane tubes and rolled polyurethane sheets with our newly developed DLC coating technique for resin tubes. The DLC-coated and uncoated polyurethane surfaces were tested in smoothness, hydrophilicity, zeta-potential, and anti-bacterial properties against S. aureus (biofilm formation and bacterial attachment) by contact with bacterial fluids under static and flow conditions. The DLC-coated polyurethane surface was significantly smoother, more hydrophilic, and had a more negative zeta-potential than did the uncoated polyurethane surface. Upon exposure to bacterial fluid under both static and flow conditions, DLC-coated polyurethane exhibited significantly less biofilm formation than uncoated polyurethane, based on absorbance measurements. In addition, the adherence of S. aureus was significantly lower for DLC-coated polyurethane than for uncoated polyurethane under both conditions, based on scanning electron microscopy. These results show that applying DLC coating to the luminal resin of polyurethane tubes may impart antimicrobial effects against S. aureus to implantable medical polyurethane devices, such as vascular grafts and central venous catheters.
Language	English
Publishing date	2023-05-25
Publishing country	Japan
Document type	Journal Article
ZDB-ID	1463555-0
ISSN	1619-0904 ; 1434-7229
ISSN (online)	1619-0904
ISSN	1434-7229
DOI	10.1007/s10047-023-01403-1
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Zs.A 5024: Show issues

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Article ; Online: Mid-term outcomes of physician-modified endograft therapy for complex aortic aneurysms.

Shibata, Tsuyoshi / Mitsuoka, Hiroshi / Iba, Yutaka / Hashizume, Kenichi / Hongo, Norio / Yasuhara, Kiyomitsu / Kuwada, Noriaki / Katada, Yoshiaki / Hashiguchi, Hitoki / Uzuka, Takeshi / Murai, Yuta / Nakazawa, Tomohiro Junji / Kawaharada, Nobuyoshi

Interdisciplinary cardiovascular and thoracic surgery

2024 Volume 38, Issue 4

Abstract: Objectives: Our goal was to evaluate early and mid-term outcomes of physician-modified endografting for pararenal and thoraco-abdominal aortic aneurysms from 10 Japanese aortic centres.: Methods: From January 2012 to March 2022, a total of 121 ... ...

Abstract	Objectives: Our goal was to evaluate early and mid-term outcomes of physician-modified endografting for pararenal and thoraco-abdominal aortic aneurysms from 10 Japanese aortic centres. Methods: From January 2012 to March 2022, a total of 121 consecutive adult patients who underwent physician-modified endografting for pararenal and thoraco-abdominal aortic aneurysms were enrolled. We analysed early and mid-term postoperative outcomes, including postoperative complications and mortality. Results: The pararenal and thoraco-abdominal aortic aneurysm groups included 62 (51.2%) and 59 (48.8%) patients, respectively. The overall in-hospital mortality rate was 5.8% (n = 7), with mortality rates of 3.2% (n = 2) and 8.5% (n = 5) in pararenal and thoraco-abdominal aortic aneurysm groups, respectively (P = 0.225). Type IIIc endoleaks occurred postoperatively in 18 patients (14.9%), with a significantly higher incidence (P = 0.033) in the thoraco-abdominal aortic aneurysm group (22.0%, n = 13) than in the other group (8.1%, n = 5). Major adverse events occurred in 7 (11.3%) and 14 (23.7%) patients in pararenal and thoraco-abdominal aortic aneurysm groups (P = 0.074), respectively. The mean follow-up period was 24.2 months. At the 3-year mark, both groups differed significantly in freedom from all-cause mortality (83.3% and 54.1%, P = 0.004), target aneurysm-related mortality (96.8% and 82.7%, P = 0.013) and any reintervention (89.3% and 65.6%, P = 0.002). Univariate and multivariate regression analyses demonstrated that ruptures, thoraco-abdominal aortic aneurysms and postoperative type IIIc endoleaks were associated with an increased risk of all-cause mortality. Conclusions: The mid-term outcomes of physician-modified endografting for pararenal and thoraco-abdominal aortic aneurysms were clinically acceptable and comparable with those in other recently published studies. Notably, pararenal and thoraco-abdominal aortic aneurysms represent distinct pathological entities with different postoperative outcomes.
Language	English
Publishing date	2024-03-11
Publishing country	England
Document type	Journal Article
ISSN	2753-670X
ISSN (online)	2753-670X
DOI	10.1093/icvts/ivae044
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Article: Endovascular Stent Graft Placement and Coil Embolization for Splenic Artery Aneurysm with an Anatomical Variant

Kuwada, Noriaki / Akagi, Daisuke / Watanabe, Yoshiko / Kanaoka, Yuji / Tanemoto, Kazuo

International Journal of Angiology

2022 Volume 32, Issue 04, Page(s) 273–276

Abstract	A 62-year-old woman with abdominal pain was diagnosed with a splenic artery aneurysm (SAA) and an anatomical variant in the splenic artery (SA) arising from the superior mesenteric artery (SMA) as its first branch. To treat the SAA, the draining artery and a small branch of the SAA were embolized, and then small-diameter stent grafts were deployed from SMA orifice, covering the aberrant origin of the SA and preserving the second branch of SMA. Intraoperative angiography confirmed successful exclusion of the SAA without endoleak or arterial dissection. The stent graft was patent and the aneurysm had shrunk 3.5 years after the operation.
Keywords	splenic artery aneurysm ; splenic artery with an anatomical variant ; endovascular treatment ; stent graft ; splenomesenteric trunk ; visceral artery aneurysm ; superior mesenteric artery
Language	English
Publishing date	2022-02-25
Publisher	Thieme Medical Publishers, Inc.
Publishing place	Stuttgart ; New York
Document type	Article
ZDB-ID	1144390-x
ISSN	1615-5939 ; 1061-1711
ISSN (online)	1615-5939
ISSN	1061-1711
DOI	10.1055/s-0042-1742588
Database	Thieme publisher's database

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Zs.A 3635: Show issues

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ab Jg. 2022: Lesesaal (EG)

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Article ; Online: Comprehensive hemocompatibility analysis on the application of diamond-like carbon to ePTFE artificial vascular prosthesis.

Goyama, Takashi / Fujii, Yasuhiro / Muraoka, Genya / Nakatani, Tatsuyuki / Ousaka, Daiki / Imai, Yuichi / Kuwada, Noriaki / Tsuji, Tatsunori / Shuku, Takayuki / Uchida, Haruhito A / Nishibori, Masahiro / Oozawa, Susumu / Kasahara, Shingo

Scientific reports

2023 Volume 13, Issue 1, Page(s) 8386

Abstract: The aim of this study was to obtain comprehensive data regarding the hemocompatibility of diamond-like carbon (DLC)-coated expanded polytetrafluoroethylene (ePTFE). DLC increased the hydrophilicity and smoothened the surface and fibrillar structure, ... ...

Abstract	The aim of this study was to obtain comprehensive data regarding the hemocompatibility of diamond-like carbon (DLC)-coated expanded polytetrafluoroethylene (ePTFE). DLC increased the hydrophilicity and smoothened the surface and fibrillar structure, respectively, of the ePTFE. DLC-coated ePTFE had more albumin and fibrinogen adsorption and less platelet adhesion than uncoated ePTFE. There were scarce red cell attachments in in vitro human and in vivo animal (rat and swine) whole blood contact tests in both DLC-coated and uncoated ePTFE. DLC-coated ePTFE had a similar but marginally thicker band movement than uncoated-ePTFE with SDS-PAGE after human whole blood contact test. In addition, survival studies of aortic graft replacement in rats (1.5 mm graft) and arteriovenous shunt in goats (4 mm graft) were performed to compare the patency and clot formation between DLC-coated and uncoated ePTFE grafts. Comparable patency was observed in both animal models. However, clots were observed in the luminal surface of the patent 1.5 mm DLC-coated ePTFE grafts, but not in that of uncoated ePTFE grafts. In conclusions, hemocompatibility of DLC-coated ePTFE was high and comparable to that of uncoated ePTFE. However, it failed to improve the hemocompatibility of 1.5 mm ePTFE graft probably because increased fibrinogen adsorption canceled the other beneficial effects of DLC.
MeSH term(s)	Humans ; Animals ; Rats ; Swine ; Blood Vessel Prosthesis ; Adsorption ; Albumins ; Carbon ; Fibrinogen ; Goats
Chemical Substances	Albumins ; Carbon (7440-44-0) ; Fibrinogen (9001-32-5)
Language	English
Publishing date	2023-05-24
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-023-35594-7
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: A case of primary aortic sarcoma with tumor infarction after stent graft placement.

Nakamura, Hiroki / Kanki, Akihiko / Watanabe, Hiroyuki / Ono, Kentarou / Kuwada, Noriaki / Saisho, Shinsuke / Nishimura, Hirotake / Yamamoto, Akira / Tamada, Tsutomu

Acta radiologica open

2021 Volume 10, Issue 11, Page(s) 20584601211063360

Abstract: Primary aortic sarcoma is a very rare disease, and most primary aortic tumors are malignant mesenchymal tumors. We present the case of a 62-year-old man with sudden epigastric and back pain. Contrast-enhanced computed tomography (CT) revealed a mass ... ...

Abstract	Primary aortic sarcoma is a very rare disease, and most primary aortic tumors are malignant mesenchymal tumors. We present the case of a 62-year-old man with sudden epigastric and back pain. Contrast-enhanced computed tomography (CT) revealed a mass lesion about 33.8 mm in diameter, in contact with the left side of the abdominal aorta. Impending rupture of an abdominal aortic aneurysm was suspected, so cardiovascular surgery for stent graft placement was performed the same day. Symptoms immediately improved and CT at 3 months postoperatively showed a marked decrease in lesion size, but the lesion subsequently grew again. Fluorodeoxyglucose (FDG)-positron emission tomography/CT was performed due to the possibility of malignant solid tumor, revealing markedly increased FDG accumulation (maximum standardized uptake value, 36.95) in the mass lesion. Primary aortic sarcoma was diagnosed from thoracoscopic biopsy. Here, we report a primary aortic sarcoma that shrank due to tumor infarction after stent graft placement, followed by tumor regrowth.
Language	English
Publishing date	2021-12-07
Publishing country	England
Document type	Case Reports
ZDB-ID	2818429-4
ISSN	2058-4601
ISSN	2058-4601
DOI	10.1177/20584601211063360
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Intraoperative collection of autologous platelet-rich plasma from the cardiopulmonary bypass circuit upon initiation of extracorporeal circulation.

Honda, Takeshi / Kanaoka, Yuji / Furukawa, Hiroshi / Tamura, Taishi / Kuwada, Noriaki / Yamasawa, Takahiko / Watanabe, Yoshiko / Yunoki, Yasuhiro / Tabuchi, Atsushi / Tanemoto, Kazuo

Journal of cardiothoracic surgery

2021 Volume 16, Issue 1, Page(s) 17

Abstract: Objectives: The aim of this study is to evaluate the possibility of the autologous platelet-rich plasma (PRP) collection from the cardiopulmonary bypass (CPB) circuit and to evaluate its effect on the aggregative function.: Methods: For seventy-two ... ...

Abstract	Objectives: The aim of this study is to evaluate the possibility of the autologous platelet-rich plasma (PRP) collection from the cardiopulmonary bypass (CPB) circuit and to evaluate its effect on the aggregative function. Methods: For seventy-two patients undergoing cardiac surgery with CPB, an autologous PRP was prepared using the Haemonetics Component Collection System® by drawing blood from the CPB circuit immediately after CPB was established. The blood samples were taken at three points for examination, A: beginning of surgery, B: immediately after heparin reversal with protamine following discontinuation of CPB, C: after the collected autologous PRP was returned to the patient. Platelet count and platelet aggregation ability were analyzed. Results: The mean platelet count in autologous PRP was 5.5 (range: 3-14) units. Platelet count decreased by 115.0 (±27.3) × 1000/μl from A to B and increased by 27.3 ± 17.2 (× 1000/μl) from B to C. When platelet aggregation was measured by Adenosine Diphosphate (ADP) 3.0 μM, it decreased by 42.6% ± 12.1% from A to B and increased by 8.7% ± 7.4% from B to C. Conclusions: Autologous PRP can be safely collected by drawing blood from the CPB circuit, platelet count and aggregation ability significantly decreased after CPB including autologous PRP collection. Some improvement was detected in the number of the platelets count and platelet aggregation ability by administrating an autologous PRP even if autologous PRP is collected from CPB circuit. Trial registration: UMI-CTR, UMIN000023776 . Registered 1 October 2016.
MeSH term(s)	Aged ; Blood Transfusion, Autologous/methods ; Cardiac Surgical Procedures/methods ; Cardiopulmonary Bypass/methods ; Female ; Humans ; Intraoperative Period ; Male ; Platelet Aggregation ; Platelet Count ; Platelet-Rich Plasma
Language	English
Publishing date	2021-02-05
Publishing country	England
Document type	Journal Article
ISSN	1749-8090
ISSN (online)	1749-8090
DOI	10.1186/s13019-020-01388-5
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Treatment of ventricular septal perforation caused by blunt trauma using the right ventricle approach: A case report.

Yamasawa, Takahiko / Kanaoka, Yuji / Furusawa, Kohei / Yamane, Naoki / Tamura, Taishi / Kuwada, Noriaki / Watanabe, Yoshiko / Yunoki, Yasuhiro / Tabuchi, Atsushi / Tanemoto, Kazuo

Journal of cardiology cases

2021 Volume 24, Issue 4, Page(s) 153–156

Abstract: Traumatic ventricular septal perforation (VSP) is a rare condition that can occur following chest trauma and can lead to heart failure. Herein, a case of VSP caused by blunt chest trauma successfully closed using the double-patch technique via the right ... ...

Abstract	Traumatic ventricular septal perforation (VSP) is a rare condition that can occur following chest trauma and can lead to heart failure. Herein, a case of VSP caused by blunt chest trauma successfully closed using the double-patch technique via the right ventricle after medial sternotomy is presented. This case report highlights the necessity of emergency surgery in the acute phase of traumatic VSP if heart failure is difficult to control. This technique was useful for acute surgery. <
Language	English
Publishing date	2021-04-03
Publishing country	Japan
Document type	Case Reports
ISSN	1878-5409
ISSN (online)	1878-5409
DOI	10.1016/j.jccase.2021.03.004
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: [Coronary Artery Bypass Grafting (CABG) and simultaneous cardiac resynchronization therapy in a patient with left ventricular noncompaction repeating heart failure].

Otani, Satoru / Yamamoto, Tsuyoshi / Yamada, Yuki / Kuwada, Noriaki

Kyobu geka. The Japanese journal of thoracic surgery

2013 Volume 66, Issue 12, Page(s) 1067–1070

Abstract: Noncompaction of the left ventricular myocardium (NCLV) is a rare congenital cardiomyopathy resulting from an arrest in normal endomyocardial embryogenesis, and has been known as a disease of infants. However, some cases of NCLV in adults have been ... ...

Abstract	Noncompaction of the left ventricular myocardium (NCLV) is a rare congenital cardiomyopathy resulting from an arrest in normal endomyocardial embryogenesis, and has been known as a disease of infants. However, some cases of NCLV in adults have been recently reported. We experienced an adult NCLV case repeating heart failure, and controlled it by surgery. The patient was 75-year-old man with NCLV and he had repeated heart failure and hospitalization. His heart failure had been barely control by infusion of human atrial natriuretic peptide (hANP). Coronary angiography revealed double vessel disease( #2 100%, #6 90).We performed coronary artery bypass grafting(CABG) with intraoperative cardiac resynchronization therapy. The heart failure was dramatically improved and the patient was discharged on foot 32 days after operation. However, careful observation of cardiac function is vital because of the possibility of progression to heart failure of NCLV.
MeSH term(s)	Cardiac Resynchronization Therapy ; Coronary Artery Bypass ; Heart Defects, Congenital/complications ; Heart Defects, Congenital/therapy ; Heart Failure/etiology ; Humans ; Male ; Middle Aged
Language	Japanese
Publishing date	2013-11
Publishing country	Japan
Document type	Case Reports ; English Abstract ; Journal Article
ZDB-ID	603899-2
ISSN	0021-5252
ISSN	0021-5252
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: [Combined surgical and endovascular treatment( hybrid-procedure) of thoracoabdominal dissecting aneurysm].

Otani, Satoru / Yamamoto, Tsuyoshi / Yamada, Yuki / Kuwada, Noriaki

Kyobu geka. The Japanese journal of thoracic surgery

2013 Volume 66, Issue 5, Page(s) 379–382

Abstract: A 50-year-old man was admitted because of enlargement in diameter of the descending thoracoabdominal aorta. Seven years previously, he had undergone Bentall operation and graft replacement of the aortic arch due to an acute dissecting aneurysm, and he ... ...

Abstract	A 50-year-old man was admitted because of enlargement in diameter of the descending thoracoabdominal aorta. Seven years previously, he had undergone Bentall operation and graft replacement of the aortic arch due to an acute dissecting aneurysm, and he had also received graft replacement of the descending aorta due to a rupture of dissecting aneurysm 2 years before. The surgical stress of conventional repair under left lateral thoracotomy and laparotomy was considered to be excessive, and the 3-dimensional computed tomography (3D-CT) image revealed the reconstruction of intercostals artery was difficult. Hence, extra-anatomic bypasses were created to perfuse the visceral and renal vessels, and endovascular thoracic stent-grafts were deployed into the false lumen, because of the severe narrowing of the true lumen( hybrid-procedure). The postoperative course was uneventful and the patient was discharged on postoperative 30 days. Hybrid-procedure of aortic aneurysm is feasible, and may be an alternative to standard open procedures in high-risk patients and emergency cases.
MeSH term(s)	Aneurysm, Dissecting/surgery ; Aortic Aneurysm, Thoracic/surgery ; Blood Vessel Prosthesis Implantation ; Humans ; Male ; Middle Aged ; Stents ; Vascular Surgical Procedures/methods
Language	Japanese
Publishing date	2013-05
Publishing country	Japan
Document type	Case Reports ; English Abstract ; Journal Article
ZDB-ID	603899-2
ISSN	0021-5252
ISSN	0021-5252
Database	MEDical Literature Analysis and Retrieval System OnLINE

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