Research Achievements - Original paper -

Concomitant distal bare-metal stenting for residual true lumen stenosis in a frozen elephant trunk technique for acute type A aortic dissection

Hiroshi Yamamoto, Takayuki Kadohama, Daichi Takagi, Takuya Wada

JTCVS Techniques ( JTCVS Techniques )  15   27 - 30   2022.10  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Enhanced strategy against mediastinitis with thoracic vascular graft infection: A combination of hydro-debridement with pulsed lavage and negative pressure wound therapies

Daichi Takagi, Takuya Wada, Wataru Igarashi, Takayuki Kadohama, Kentaro Kiryu, Hiroshi Yamamoto

Journal of Cardiac Surgery ( Journal of Cardiac Surgery )  37 ( 9 ) 2741 - 2744   2022.09  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Aortic remodeling, reintervention, and survival after zone 0 arch repair with frozen elephant trunks for acute type A aortic dissection: Midterm results

Takuya Wada, Hiroshi Yamamoto, Daichi Takagi, Takayuki Kadohama, Gembu Yamaura, Kentaro Kiryu, Itaru Igarashi

JTCVS Techniques ( JTCVS Techniques )  14   29 - 38   2022.08  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Pacemaker Lead–induced Tricuspid Valve Stenosis and Reverse Lutembacher Syndrome

Yuya Yamazaki, Takuya Wada, Takayuki Kadohama, Daichi Takagi, Kentaro Kiryu, Hiroshi Yamamoto

Annals of Thoracic Surgery ( Annals of Thoracic Surgery )  114 ( 2 ) e113 - e115   2022.08  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Translocation of the Isolated Left Vertebral Artery during Thoracic Endovascular Stent-Graft Repair

Arai Takeshi, Takagi Daichi, Wada Takuya, Igarashi Itaru, Yamazaki Yuya, Igarashi Wataru, Kadohama Takayuki, Yamamoto Hiroshi

Japanese Journal of Cardiovascular Surgery ( The Japanese Society for Cardiovascular Surgery )  51 ( 4 ) 240 - 244   2022.07  [Refereed]

Research paper (journal)   Domestic Co-author

<p>Spinal cord injury (SCI) is a main concern in patients who undergo thoracic endovascular therapy (TEVAR), because the blood flow of the vertebro-basilar artery may be reduced due to the left subclavian artery (LSA) occlusion. If the left vertebral artery originates directly from the aorta, which is called the isolated left vertebral artery (ILVA), a technical consideration for strategies regarding blood perfusion of the ILVA during TEVARs is required. We hereby aim to report three patients (No.1, No.2, and No.3) who underwent an ILVA translocation and TEVAR with Zone 2 landing for aortic dissection. The diameter of the ILVA was 4.2, 2.3, and 2.2 mm, respectively, and the right vertebral artery (RVA) was dominant in all cases. In Patient No.1 and No.2 (ILVA diameter: 4.2 and 2.3 mm, respectively), the ILVA was anastomosed directly to the left common carotid artery. In Patient No.2, the translocated ILVA was occluded resulting in SCI, but the SCI improved when blood pressure was augmented. In Patient No.3 (ILVA diameter: 2.2 mm), the saphenous vein graft was interposed between the ILVA and the bypass artery because the ILVA diameter was small, but postoperatively, the ILVA remained patent, and no paraplegia was observed. The occlusion of ILVA could cause SCI, even if the RVA is larger than the LVA. Reconstruction of the ILVA is a critical procedure to prevent postoperative SCIs in patients undergoing TEVARs.</p>

DOI CiNii Research

Subvalvular tissue mimicking valve detachment-like pathology by vertical aneurysm in Takayasu's arteritis

Kentaro Kiryu, Itaru Igarashi, Takuya Wada, Hiroshi Yamamoto

Interactive Cardiovascular and Thoracic Surgery ( Interactive Cardiovascular and Thoracic Surgery )  34 ( 4 ) 717 - 719   2022.04  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Optimal stent length and distal positioning of frozen elephant trunks deployed from the aortic zone 0 for type A acute aortic dissection

Daichi Takagi, Hiroshi Yamamoto, Takayuki Kadohama, Kentaro Kiryu, Takuya Wada, Itaru Igarashi

Journal of Thoracic and Cardiovascular Surgery ( Journal of Thoracic and Cardiovascular Surgery )    2022.03  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Risk factors for spinal cord ischemia in frozen elephant trunk-induced upper spinal cord ischemia in patients with combination of degenerative arch aneurysms and peripheral artery disease: a possible mechanism

Kentaro Kiryu, Hiroshi Yamamoto, Takayuki Kadohama, Daichi Takagi, Yoshinori Itagaki, Takuya Wada, Itaru Igarashi

The Cardiothoracic Surgeon   29   2021.11  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Endovascular rescue for malpositioned frozen elephant trunk into the false lumen

Daichi Takagi, Takuya Wada, Wataru Igarashi, Takayuki Kadohama, Kentaro Kiryu, Takeshi Arai, Hiroshi Yamamoto

Journal of Cardiac Surgery ( Journal of Cardiac Surgery )  36 ( 10 ) 3948 - 3951   2021.10  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Right coronary ostium occlusion by aortic valve tumor during systole

Wataru Igarashi, Takuya Wada, Daichi Takagi, Takayuki Kadohama, Kentaro Kiryu, Itaru Igarashi, Hiroshi Yamamoto

Journal of Cardiac Surgery ( Journal of Cardiac Surgery )  36 ( 9 ) 3393 - 3395   2021.09  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Aortic remodeling mismatch: A potential risk factor of late distal stent graft-induced new entry after frozen elephant trunk deployment

Takuya Wada, Hiroshi Yamamoto, Takayuki Kadohama, Daichi Takagi

JTCVS Techniques ( JTCVS Techniques )  8   46 - 48   2021.08  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Calcified Aortic Wall Removal for Dysphagia Aortica Caused by Chronic Traumatic Aortic Pseudoaneurysm

Takuya Wada, Shogo Oyama, Shingo Ohuchi, Takayuki Kadohama, Daichi Takagi, Kentaro Kiryu, Itaru Igarashi, Hiroshi Yamamoto

Annals of Vascular Surgery ( Annals of Vascular Surgery )    2021  [Refereed]

Research paper (journal)  

DOI

Total arch repair with frozen elephant trunk for type A acute aortic dissection using the “zone 0 arch repair” strategy

Yamamoto Hiroshi, Kadohama Takayuki, Takagi Daichi

Annals Cardiothoracic Surgery   9 ( 3 ) 251 - 253   2020.03  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Comparative study of hyperpolarization-activated currents in pulmonary vein cardiomyocytes isolated from rat, guinea pig and rabbit.

Takagi Daichi, Okamoto Yosuke, Ohba T, Yamamoto Hirosihi, Ono Kyoichi

J Physiol Sci   70 ( 1 ) 6 - 6   2020.01  [Refereed]

Research paper (journal)   Domestic Co-author

Large non-coronary sinus of Valsalva aneurysm: a case report of an unusual cause of angina pectoris

Hidehiro Iwakawa, Takako Iino, Hiroshi Yamamoto, Hiroyuki Watanabe

Eur Heart J Case Rep   4   1 - 6   2020  [Refereed]

Research paper (journal)   Single author

DOI

Multiple graft injury due to migrated nonbroken sternal wires 2 years after cardiac surgery.

Kadohama Takayuki, Takagi Daichi, Takeshi Arai, Yamamoto Hiroshi

J Card Surg   35 ( 7 ) 1640 - 1641   2020  [Refereed]

Research paper (journal)   Domestic Co-author

Tumorectomy to Avoid Sudden Death by Pulmonary Embolism in a Patient with a Cardiac Tumor Originating from the Esophagus

Kiryu Kentaro, Kadohama Takayuki, Yamaura Gembu, Chida Yosifumi, Tanaka Fuminobu, Takagi Daichi, Itagaki Yoshinori, Yamamoto Hiroshi

Japanese Journal of Cardiovascular Surgery ( The Japanese Society for Cardiovascular Surgery )  48 ( 3 ) 170 - 172   2019  [Refereed]

Research paper (journal)   Domestic Co-author

<p>Tumor metastasis to the endocardium is rare. The patient was 58-year-old man who was given a diagnosis of a metastatic tumor to the right atrium and right ventricle. The tumor originated from the esophagus, and the patient was at risk of sudden death caused by acute pulmonary embolism. We performed tumorectomy to reduce the risk of sudden death. The postoperative course was satisfactory, and the tumorectomy was followed by chemotherapy. The 5-year survival rate in such cases has been reported to be only approximately 11%. However, resection of tumor mass may be useful for improving postoperative QOL and reducing the risk of sudden death.</p>

DOI

Metronidazole-Induced Encephalopathy in Treatment for a Thoracic Aortic Aneurysm Infected by <i>Bacteroides fragilis</i>

Takagi Daichi, Hirokawa Makoto, Kadohama Takayuki, Yamaura Gembu, Tanaka Fuminobu, Kiriu Kentaro, Itagaki Yoshinori, Yamazaki Yuya, Yamamoto Hiroshi, Saga Tomoo

Japanese Journal of Cardiovascular Surgery ( The Japanese Society for Cardiovascular Surgery )  47 ( 3 ) 142 - 147   2018  [Refereed]

Research paper (journal)   Domestic Co-author

<p>A 77-year-old man presented with fever and back pain. Computed tomography revealed a distal arch aneurysm. <i>Bacteroides fragilis </i>was found in a blood culture, and we diagnosed a thoracic infected aneurysm. Because of the rapid enlargement of the aneurysm and his frailty, a TEVAR procedure was urgently performed. He left the hospital after antibiotic treatment with meropenem. However, he was re-hospitalized due to recurrence of the infection. The infection was well-controlled by treatment with intravenous meropenem, and the subsequent oral administration of metronidazole (MNZ). He was re-hospitalized again 7 weeks after discharge due to unsteady gait and articulatory disorder. MNZ-induced encephalopathy (MIE) was diagnosed because FLAIR brain magnetic resonance imaging revealed an area of high signal intensity in the bilateral basal dentate nuclei. These symptoms improved after MNZ was changed to AMPC/CVA. Fifteen months later, the patient was doing well and had no recurrence of the infection. We performed TEVAR for a patient with a thoracic aneurysm infected by <i>B. fragilis</i>. The recurrence of the infection was controlled by adequate antibiotic therapy, which included the administration of MNZ. However, patients who are treated with MNZ should be carefully observed to detect the development of neurological signs, as MNZ may induce encephalopathy. The early detection and withdrawal of metronidazole is important for the improvement of MIE.</p>

DOI

Pulmonary Thromboembolism Caused by a Traumatic Aneurysm of the Popliteal Vein

Kiryu Kentaro, Yamaura Gembu, Kadohama Takayuki, Tanaka Fuminobu, Takagi Daichi, Yamamoto Hiroshi

Japanese Journal of Vascular Surgery ( JAPANESE SOCIETY FOR VASCULAR SURGERY )  27 ( 3 ) 221 - 223   2018  [Refereed]

Research paper (journal)   Domestic Co-author

<p>A popliteal vein aneurysm (PVA) could be an important pathology causing pulmonary thromboembolism (PTE). We report a rare case of traumatic PVA. A 59-year-old woman presented an onset of syncope and hypoxemia. The Computed tomography and ultrasonography revealed PTE and PVA. Because she had a risk of repetive PTE, she was refered to our department for surgery. We performed PVA resection and closure of the aneurysm ostium, which was followed by anticoagulant therapy for one year. To date there is no recurrence of vein thrombosis or PTE.</p>

DOI

Simultaneous appearance of intracardiac masses following chemotherapy in a patient with lung cancer.

Shimbo M, Watanabe Hiroyuki, Sato K, Yamamoto Hiroshi, Ito Hiroshi

Eur Heart J Cardiovasc Imaging   19 ( 1 ) 119 - 119   2018  [Refereed]

Research paper (journal)   Domestic Co-author