208 results on '"Kawaharada N"'
Search Results
2. A Case Report of Blunt Aortic Arch Injury Treated by Immediate Stent-Grafting
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Kurimoto, Y., Morishita, K., Kawaharada, N., Fukada, J., Asai, Y., and Abe, T.
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- 2003
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3. Stent-grafting for a thoracic aortic aneurysm ruptured into the right pleural cavity
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Kurimoto, Y., Morishita, K., Kawaharada, N., Fukada, J., and Abe, T.
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- 2003
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4. 322 * PROSTHETIC VASCULAR GRAFT INFECTION COMPLICATED BY MEDIASTINITIS: A MULTICENTRE REVIEW
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Oda, T., primary, Minatoya, K., additional, Kobayashi, J., additional, Okita, Y., additional, Tanaka, H., additional, Kawaharada, N., additional, Saiki, Y., additional, and Kuniyoshi, Y., additional
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- 2014
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5. Two separate thoroscopic segmentectomies with vessel sealing system
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Watanabe, A., primary, Miyajima, M., additional, Kawaharada, N., additional, and Higami, T., additional
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- 2012
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6. Less-invasive management of left subclavian artery in stent-grafting for distal aortic arch disease
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Kurimoto, Y., primary, Kawaharada, N., additional, Ito, T., additional, Baba, T., additional, Ohori, S., additional, Watanabe, A., additional, Asai, Y., additional, and Higami, T., additional
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- 2009
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7. Spinal cord ischemia after elective endovascular stent-graft repair of the thoracic aorta☆
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KAWAHARADA, N, primary, MORISHITA, K, additional, KURIMOTO, Y, additional, HYODOH, H, additional, ITO, T, additional, HARADA, R, additional, KUWAKI, K, additional, and HIGAMI, T, additional
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- 2007
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8. Stroke in surgery of the arteriosclerotic descending thoracic aortic aneurysms: influence of cross-clamping technique of the aorta
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KAWAHARADA, N, primary, MORISHITA, K, additional, FUKADA, J, additional, HACHIRO, Y, additional, FUJISAWA, Y, additional, SAITO, T, additional, KURIMOTO, Y, additional, and ABE, T, additional
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- 2005
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9. Die Minilaparotomie zur Versorgung des abdominellen Bauchaortenaneurysma*
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Kawaharada, N., primary, Morishita, K., additional, Fukada, J., additional, Muraki, S., additional, Yamada, A., additional, Satsu, T., additional, and Abe, T., additional
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- 2002
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10. Surgical treatment of thoracoabdominal aortic aneurysm after repairs of descending thoracic or infrarenal abdominal aortic aneurysm
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Kawaharada, N., primary, Morishita, K., additional, Fukada, J., additional, Watanabe, T., additional, and Abe, T., additional
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- 2001
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11. High Local Production of Nitric Oxide As a Possible Mechanism by Which Rapamycin Prevents Transplant Arteriosclerosis
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Pham, S.M, primary, Shears, L.L, additional, Kawaharada, N, additional, Li, S, additional, Venkataramanan, R, additional, and Sehgal, S, additional
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- 1998
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12. Inducible nitric oxide synthase suppresses the development of allograft arteriosclerosis.
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Shears, L L, primary, Kawaharada, N, additional, Tzeng, E, additional, Billiar, T R, additional, Watkins, S C, additional, Kovesdi, I, additional, Lizonova, A, additional, and Pham, S M, additional
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- 1997
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13. ADENOVIRUS-MEDIATED HUMAN iNOS GENE THERAPY AS A METHOD FOR LOCAL NO DELIVERY
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Shears, LL, primary, Tzeng, E, additional, Kawaharada, N, additional, Lizonova, A, additional, Kovesdi, I, additional, Miyagishima, M, additional, Pham, S, additional, and Billiar, TR, additional
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- 1997
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14. Fenestrated stent-graft facilitates emergency endovascular therapy for blunt aortic injury.
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Kurimoto Y, Asai Y, Nara S, Mori K, Hase M, Ohori S, Ito T, Baba T, Kawaharada N, and Higami T
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- 2009
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15. Mixed hematopoietic chimerism prevents allograft vasculopathy - immunocompetence, in vitro reactivity and genetic specificity of tolerance
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Kawaharada, N., Shears, L.L., Li, S., and Pham, S.M.
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- 1999
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16. The first case report of stent-grafting for blunt extended aortic dissection.
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Kurimoto Y, Morishita K, Kawaharada N, Fukada J, Narimatsu E, Asai Y, and Abe T
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- 2002
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17. Influence of oxygen in inflation gas during lung ischemia on ischemia-reperfusion injury
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Medicine, Sapporo Medical University School of, Sapporo, From the Second Department of Surgery, Japan., Medicine, Third Department of, Watanabe, A., Kawaharada, N., Kusajima, K., Komatsu, S., Abe, T., and Takahashi, H.
- Abstract
Objectives: Previous studies have reported that hyperinflation during lung ischemia improves pulmonary function after reperfusion. However, it has not been clarified whether hyperinflation itself or oxygen in inflation gas causes good pulmonary function. The aim of this study is to evaluate the effect of oxygen in pulmonary inflation gas during lung ischemia on ischemia-reperfusion injury. Methods: Twenty-one mongrel dogs were randomly divided into three groups: the lung during a 90-minute period of warm ischemia was inflated to 30 cm H"2O with 100% oxygen in group A and 100% nitrogen in group B; it was not inflated in group C. Pulmonary function and hemodynamics were measured before ischemia and 1,2, and 3 hours after reperfusion. Total protein and phosphorous of phospholipid in bronchoalveolar lavage fluid were measured 210 minutes after reperfusion. Results: No significant differences in pulmonary function and hemodynamics were noted between group A and group B, but these two groups had significantly better pulmonary function and hemodynamics than group C. No significant differences were detected in the concentrations of total protein and phosphorus of phospholipids in bronchoalveolar lavage fluid and in adenine nucleotide levels of lung tissue after reperfusion among the three groups. Conclusions: The results indicate that pulmonary inflation during warm ischemia improves pulmonary function and hemodynamics after reperfusion in this model. The effect is caused by inflation itself and is not due to oxygen as a metabolic substrate during warm ischemia. (J Thorac Cardiovasc Surg 1997;114: 332-8)
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- 1997
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18. Giant intercostal aneurysm complicated by Stanford type B acute aortic dissection in patients with type 1 neurofibromatosis
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Uzuka Takeshi, Ito Toshiro, Koyanagi Tetsuya, Maeda Toshiyuki, Tabuchi Masaki, Kawaharada Nobuyoshi, and Higami Tetsuya
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Neurofibromatosis type 1 ,Intercostal artery aneurysm ,Stanford type B acute aortic dissection ,Coil embolization ,Surgery ,RD1-811 ,Anesthesiology ,RD78.3-87.3 - Abstract
Abstract Vascular involvement is rare in neurofibromatosis type 1 (NF1). It is often missed because it is usually asymptomatic. We report a case of a 42 years old male with neurofibromatosis type 1 who presented with left back discomfort. CT angiography revealed a massive 42 mm aneurysm of left 11th intercostal artery. After a discussion between radiologists and cardiothoracic surgeons, endovascular coil embolization was chosen to treat this patient. Percutaneous aneurysm embolization was successfully performed. However, the procedure was complicated by Stanford type B acute aortic dissection. Stanford type B acute aortic dissection was medically managed and patient remained well after discharge. Fragile vascular nature was thought to be one of the causes of this unreported complication.
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- 2012
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19. 62 - ADENOVIRUS-MEDIATED HUMAN iNOS GENE THERAPY AS A METHOD FOR LOCAL NO DELIVERY
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Shears, LL, Tzeng, E, Kawaharada, N, Lizonova, A, Kovesdi, I, Miyagishima, M, Pham, S, and Billiar, TR
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- 1997
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20. Multicentre retrospective analysis of physician-modified fenestrated/inner-branched endovascular repair for complex aortic aneurysms.
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Shibata T, Iba Y, Yasuhara K, Kuwada N, Katada Y, Hashiguchi H, Uzuka T, Hosaka I, Nakajima T, and Kawaharada N
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Objectives: In this multicentre retrospective observational study, we present the early outcomes of physician-modified fenestrated/inner-branched endovascular repair for pararenal and thoraco-abdominal aortic aneurysms in patients at high risk for open surgical repair., Methods: We comprehensively reviewed the clinical data and outcomes of consecutive patients treated with physician-modified fenestrated/inner-branched endovascular repair for pararenal or thoraco-abdominal aortic aneurysms at six centres between December 2020 and December 2021. Primary end-points included technical success, in-hospital mortality rates, major adverse events., Results: Seven and 31 patients (median age, 80.5 years) had pararenal and thoraco-abdominal aortic aneurysms, respectively, involving 93 renal-mesenteric arteries incorporated through 10 fenestrations or 83 inner branches. Seven patients (18.4%) were treated non-elective conditions. The technical success rate was 89.5%. The median operative time was 334.5 min. Ten patients (26.3%) experienced major adverse events, including in-hospital mortality in six patients (15.8%), acute kidney injury in three patients (7.9%), respiratory failure in three patients (7.9%), bowel ischaemia in one patient (2.6%), stroke in one patient (2.6%), and paraplegia in one patient (2.6%). Among elective cases, in-hospital deaths occurred in three patients (9.7%), while in non-elective cases, the mortality rate was higher, with three patients (42.9%) succumbing. The median follow-up duration was 14 months., Conclusions: physician-modified fenestrated/inner-branched endovascular repair is a viable treatment for pararenal or thoraco-abdominal aortic aneurysms in patients at high risk for open surgical repair. It provides customization without location constraints or production delays, but further validation is needed to ensure long-term reliability., (© The Author(s) 2024. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery. All rights reserved.)
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- 2024
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21. Pulmonary root remodeling procedure for symptomatic supravalvular pulmonary stenosis in an adult patient who underwent pulmonary artery banding: a case report.
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Mukawa K, Iba Y, and Kawaharada N
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- Humans, Male, Middle Aged, Treatment Outcome, Vascular Surgical Procedures, Cardiac Surgical Procedures, Pulmonary Artery surgery, Pulmonary Artery physiopathology, Pulmonary Artery abnormalities, Pulmonary Artery diagnostic imaging, Pulmonary Valve Stenosis surgery, Pulmonary Valve Stenosis physiopathology, Pulmonary Valve Stenosis diagnostic imaging
- Abstract
Background: Pulmonary artery banding (PAB) is performed as a palliative surgery for congenital heart diseases. Although pulmonary stenosis is one of the complications of PAB, symptomatic supravalvular pulmonary stenosis (SVPS) in adulthood after PAB is an extremely rare condition. Further, very few studies have focused on surgical cases of SVPS in adult. Herein, we describe a case of symptomatic SVPS in adulthood after PAB that was successfully managed with surgery., Case Presentation: A 55-year-old male patient had been presenting with worsening shortness of breath for 10 years. Of note, he had been diagnosed with membranous ventricular septum defect at birth and he underwent PAB at 11 months of age. The patient underwent direct closure of ventricular septum defect and pulmonary artery debanding at 3 years and 6 months old. Medical examinations showed SVPS, with a pressure gradient of 60 mmHg. We planned pulmonary artery anterior wall plasty. However, based on the operative findings, the pulmonary stenosis was located in the whole circumference just above the annulus. Hence, it was challenging to completely relieve the stenosis with a pulmonary patch, and the Yacoub remodeling technique was applied to pulmonary artery reconstruction. Intraoperative pressure gradient between the right ventricle and the distal pulmonary artery dropped to 11 mmHg. Post operative course was uneventful., Conclusions: Patient with SVPS could present with symptoms in the long term after PAB in childhood. Therefore, due to the currently increasing number of adult congenital heart disease (ACHD) cases, attention should be paid to patients who underwent PAB. In this case, pulmonary artery was degenerated in the whole circumference because of the remained banding tape and the stenosis part was just above the annulus. Therefore, we applied Yacoub remodeling technique to this reconstruction. This pulmonary root remodeling procedure was an effective option for such SVPS., (© 2024. The Author(s).)
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- 2024
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22. Luminal shape and aortic remodelling after total arch replacement for type A aortic dissection: conventional and frozen elephant trunks.
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Sato H, Iba Y, Mikami T, Tsushima S, Uchiyama H, Hosaka I, Mukawa K, Iwashiro Y, Arihara A, Miura S, Shibata T, Nakazawa J, Nakajima T, Komatsu S, Kawaharada N, and Fukada J
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- Humans, Female, Male, Middle Aged, Retrospective Studies, Aged, Blood Vessel Prosthesis, Treatment Outcome, Aortic Dissection surgery, Aorta, Thoracic surgery, Aorta, Thoracic diagnostic imaging, Aortic Aneurysm, Thoracic surgery, Blood Vessel Prosthesis Implantation methods, Blood Vessel Prosthesis Implantation adverse effects, Vascular Remodeling physiology
- Abstract
Objectives: This study was performed to assess postoperative aortic remodelling (AR) after total arch replacement for acute type A aortic dissection (AAD) with a frozen elephant trunk (FET) or conventional elephant trunk (cET). Furthermore, the shape of the residual true lumen was analysed based on elliptical Fourier analysis and evaluated as a predictor of AR., Methods: This study involved patients who underwent total arch replacement with a cET or FET for AAD from December 2006 to January 2023 at five institutions. AR was assessed at the levels of the 4th thoracic vertebra (Th4), Th7, Th10, and above the coeliac trunk. The shape of the residual true lumen at all four levels was analysed based on elliptical Fourier analysis to calculate shape patterns as principal component (PC) values. Inverse probability of treatment weighting was performed for adjustment between the groups., Results: In total, 180 patients (88 with cET and 92 with FET) were enrolled. The complete AR rate, defined as false lumen remodelling throughout the entire descending thoracic aorta, was significantly higher in the FET than cET group (63.4% vs 32.0%, P = 0.0013). The inverse probability of treatment weighting-adjusted Fine-Gray regression model revealed that the mean PC2 (hazard ratio, 0.22; P < 0.001) and PC3 (hazard ratio, 0.24; P = 0.009) of the four levels were independent predictors of complete AR., Conclusions: In AAD repair, the AR rate was significantly higher with use of the FET than cET. The shape patterns of the residual true lumen can be an important reference for predicting postoperative AR., (© The Author(s) 2024. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery. All rights reserved.)
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- 2024
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23. Successful endovascular treatment for acute type A aortic dissection in a Jehovah's Witness patient.
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Mukawa K, Shibata T, Iba Y, Arihara A, Yoshikawa K, and Kawaharada N
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Competing Interests: Disclosures None.
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- 2024
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24. Patient-Related Progression of Steeper Sternal Wire Angles: A Case Report.
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Nakajima T, Shibata T, Iwashiro Y, Iba Y, and Kawaharada N
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A 78-year-old female presented with a history of left atrial myxoma resection 12 years before presentation. The initial surgery involved a median sternotomy and cardiopulmonary bypass for tumor excision. Sternal closure was achieved using six titanium wires, with the lowermost wire noted to be slightly elevated from the sternum immediately post-operation. The patient, an active individual who regularly practiced yoga, including frequent prone positions, was discharged from follow-up two years postoperatively without complications. However, 12 years after the initial surgery, the patient experienced pain at the lower end of the median sternotomy site, prompting her first visit to our outpatient clinic within a decade. Physical examination revealed palpable subcutaneous protrusion of the lowermost sternal wire with visible skin discoloration. Although no evidence indicated wire penetrating the skin, wire removal was deemed necessary. Comparison with previous lateral chest radiographs demonstrated a progressive increase in wire angulation over time. The patient was admitted and the protruding wire was removed under local anesthesia. Her postoperative course was uneventful, leading to discharge on the sixth day after the procedure., Competing Interests: Human subjects: Consent was obtained or waived by all participants in this study. Conflicts of interest: In compliance with the ICMJE uniform disclosure form, all authors declare the following: Payment/services info: All authors have declared that no financial support was received from any organization for the submitted work. Financial relationships: All authors have declared that they have no financial relationships at present or within the previous three years with any organizations that might have an interest in the submitted work. Other relationships: All authors have declared that there are no other relationships or activities that could appear to have influenced the submitted work., (Copyright © 2024, Nakajima et al.)
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- 2024
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25. Infected Abdominal Aortic Aneurysm Successfully Treated With Endovascular Aortic Repair and Antibiotics: A Case Report.
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Nakajima T, Shibata T, Yasuda N, Iba Y, and Kawaharada N
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Surgical treatment of infected aneurysms is problematic due to their high complication and mortality rates. Infected aortic aneurysms are at high risk of rupture and should be operated on as soon as possible after diagnosis. A 72-year-old female patient with a medical history of diabetes mellitus, hyperlipidemia, and hypertension presented with a fever of 38°C and back pain, without any apparent cause, in 2021. Her C-reactive protein (CRP) level increased to 20 mg/dL. Further evaluation with contrast-enhanced computed tomography (CT) revealed a low-density area with air pockets surrounding the abdominal aorta. The patient was diagnosed with native abdominal aortic infection and transferred to our hospital for treatment. The next day, endovascular aortic repair (EVAR) was performed using an Endurant stent graft (161682). Postoperatively, the patient was treated with antibiotics, and subsequently, blood infection was alleviated. Moreover, the CRP levels normalized. Follow-up contrast-enhanced CT showed resolution of the air pockets surrounding the abdominal aorta. The patient was discharged home on postoperative day 33. During her three-year follow-up as an outpatient, no recurrence of the infection was detected. While open surgical repair with prosthetic graft replacement is often the preferred treatment for infected abdominal aortic aneurysms, in select cases, as demonstrated by our patient, EVAR can be employed to prevent rupture, followed by antibiotic therapy to achieve infection control., Competing Interests: Human subjects: Consent was obtained or waived by all participants in this study. Conflicts of interest: In compliance with the ICMJE uniform disclosure form, all authors declare the following: Payment/services info: All authors have declared that no financial support was received from any organization for the submitted work. Financial relationships: All authors have declared that they have no financial relationships at present or within the previous three years with any organizations that might have an interest in the submitted work. Other relationships: All authors have declared that there are no other relationships or activities that could appear to have influenced the submitted work., (Copyright © 2024, Nakajima et al.)
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- 2024
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26. Effects of temperature on transient neurologic dysfunction after total arch replacement.
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Nakanishi K, Sato H, Iba Y, Arihara A, Miura S, Shibata T, Nakazawa J, Nakajima T, Hasegawa T, and Kawaharada N
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Objectives: The relationship between cooling status during aortic surgery with hypothermic circulatory arrest and postoperative neurologic dysfunction remains unknown. In the present study, we evaluated the effect of cooling status on transient neurologic dysfunction after total arch replacement., Methods: We studied patients who underwent elective total arch replacement with hypothermic circulatory arrest and antegrade selective cerebral perfusion from December 2011 to January 2021. Changes in tympanic temperature trends recorded during surgery were plotted. Several parameters, including the nadir temperature, cooling speed, and degree of cooling (cooling area, or the area under the curve of inverted temperature trends from cooling to rewarming as calculated by the integral method), were analyzed. The relationships between these variables and transient neurologic dysfunction were evaluated., Results: Transient neurologic dysfunction was observed in 33 (14.5%) of the 228 included patients. In the transient neurologic dysfunction group, the cooling area was larger (2417.3 vs. 1920.8 °C min; P < 0.001) and the cooling speed was higher (0.68 vs. 0.51 °C/min; P < 0.001) than in the non-transient neurologic dysfunction group. A multivariate logistic model revealed that both the cooling area (odds ratio = 1.13 per 100 °C min; P < 0.001) and cooling speed (odds ratio = 3.69 per °C/min; P = 0.041) were independent risk factors for transient neurologic dysfunction., Conclusions: Both the cooling area, which indicates the degree of cooling, and cooling speed had significant relationships with transient neurologic dysfunction after total arch replacement. Together, these findings indicate that overcooling and rapid cooling may contribute to brain injury., (© 2024. The Author(s), under exclusive licence to The Japanese Association for Thoracic Surgery.)
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- 2024
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27. A Surgical Protocol for Establishing Spinal Cord Ischemia with Extended Lifespan and Low Complication Rates in Rats.
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Yasuda N, Sasaki M, Kocsis JD, Kawaharada N, and Honmou O
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- Animals, Male, Rats, Postoperative Complications etiology, Spinal Cord surgery, Spinal Cord blood supply, Spinal Cord Ischemia etiology, Rats, Sprague-Dawley, Disease Models, Animal
- Abstract
Background: Experimental animal models of ischemic spinal cord injury (iSCI) are essential for studying its pathogenesis and for developing new therapeutic strategies to improve functional recovery in humans. Many existing models, however, exhibit high variability or early lethality. A reliable experimental iSCI model would significantly advance novel treatment approaches for these severe neurological disorders. To this end, we have established a rat model of persistent iSCI with an extended lifespan., Methods: We have developed a novel iSCI model that induces localized ischemic lesions in the spinal cord of male Sprague-Dawley rats. This is achieved by cross clamping the descending aorta just rostral the azygos vein using an atraumatic bulldog clamp., Results: The experimental iSCI model consistently demonstrated symptoms specific to spinal cord ischemia at the lumbar level. The procedure takes approximately 50 min and does not require specialized surgical equipment. It has a survival rate of 84%, a recovery rate of 40%, and a complication rate of 16%., Conclusions: We have successfully developed a rat model of persistent iSCI. This protocol proves to be highly reliable and holds promise for evaluating new therapeutic strategies aimed at promoting functional recovery in patients suffering from spinal cord ischemia., (Copyright © 2024 Elsevier Inc. All rights reserved.)
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- 2024
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28. Multivariate analysis of the factors affecting medical students' decision to join the cardiovascular surgery department.
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Nakajima T, Iba Y, Shibata T, Tsushima S, Arihara A, Hosaka I, Ohkawa A, Nakazawa J, and Kawaharada N
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Objective: The purpose of this study was to statistically analyze the factors that influence cardiovascular surgery recruitment., Methods: Fifth- and sixth-year medical students and first-year residents who participated in cardiovascular surgery-related events at our university over a 10-year period from April 2013 to August 2022 were included. The primary endpoint was admission to the department of cardiovascular surgery. Gender, participation in sixth-year elective clinical training, participation in national academic conferences, participation in cardiovascular surgery summer school, and the cost of participation in these events (airfares and lodging) were included as analytic factors., Results: Fifty-three participants attended cardiovascular surgery events during the study period. The sample included 48 males (84%) and 9 females (16%), and 3 fifth-year medical students (5%), 45 sixth-year students (79%), and 9 students in their first year of clinical training (16%). Eighteen (32%) of the participants eventually joined the department. Gender, participation in national academic conferences, cardiovascular surgery summer school, and cost of participation were not significantly related to the decision to join the department, but participation in elective clinical training was significantly positively related to the decision to join the department for sixth-year students (p < 0.01)., Conclusions: We statistically analyzed the factors involved in the recruitment of students and initial clinical residents to the department of cardiovascular surgery. The results showed that participation in elective clinical training was significantly positively associated with the decision to join the department, suggesting that efforts to encourage participation in elective clinical training are important., (© 2023. The Author(s), under exclusive licence to The Japanese Association for Thoracic Surgery.)
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- 2024
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29. Treatment Strategies for Acute Aortic Dissection With Malperfusion: A Retrospective Study.
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Nakajima T, Shibata T, Mukawa K, Miura S, Arihara A, Mizuno T, Nakanishi K, Iba Y, and Kawaharada N
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Background: Aortic dissection with malperfusion necessitates emergency surgery and is associated with poor outcomes. Therefore, in this study, we analyzed patients' treatment courses from the initial management to hospital discharge in cases of acute aortic dissection (AAD) with malperfusion and investigated the risk factors associated with mortality., Methods: We evaluated cases of AAD with malperfusion treated at our institution over a 16-year period from 2007 to 2022. The primary endpoint was in-hospital mortality. The study's primary outcome measure was mortality during hospitalization. We collected and analyzed data encompassing preoperative patient characteristics, Stanford classification, sites of preoperative malperfusion, surgical techniques employed, and postoperative complications. These variables were examined to identify factors associated with in-hospital mortality., Results: During the study period, 366 patients were admitted with AAD, 102 of whom had malperfusion. There were 62 men (61%) and 40 women (39%), with a mean age of 64 ± 13 years (range: 28-87 years). According to the Stanford classification, 75 (74%) and 27 (26%) patients had type A and B aortic dissection, respectively, and 29 patients (28%) presented with shock. Preoperative malperfusion sites included the brain, coronary arteries, abdominal viscera, limbs, and spinal cord in 40 (39%), 10 (10%), 34 (33%), 52 (51%), and six (6%) patients, respectively. Eleven (11%) patients required immediate intervention in the emergency department. The treatments administered to the patients were as follows: ascending aortic replacement, 30 (29%) patients; aortic arch replacement, 34 (33%) patients; root replacement, three (3%) patients; thoracic endovascular aortic repair (TEVAR), 12 (12%) patients; non-anatomic bypass, five (5%) patients; and conservative management, five (5%) patients. In-hospital mortality occurred in 23 (23%) patients. Multivariate logistic regression analysis identified preoperative coronary malperfusion as an independent risk factor of mortality., Conclusion: Preoperative coronary malperfusion is an independent risk factor for in-hospital mortality in patients with AAD presenting with malperfusion., Competing Interests: Human subjects: Consent was obtained or waived by all participants in this study. Animal subjects: All authors have confirmed that this study did not involve animal subjects or tissue. Conflicts of interest: In compliance with the ICMJE uniform disclosure form, all authors declare the following: Payment/services info: All authors have declared that no financial support was received from any organization for the submitted work. Financial relationships: All authors have declared that they have no financial relationships at present or within the previous three years with any organizations that might have an interest in the submitted work. Other relationships: All authors have declared that there are no other relationships or activities that could appear to have influenced the submitted work., (Copyright © 2024, Nakajima et al.)
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- 2024
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30. A Case Report on the Utilization of a Hemostasis Analyzer System in the Management of a Patient With Essential Thrombocythemia.
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Nakajima T, Mukawa K, Iba Y, Iwashiro Y, and Kawaharada N
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Essential thrombocythemia (ET) is a myeloproliferative neoplasm characterized by persistent elevation of platelet count due to abnormal proliferation of megakaryocytes. While some cases may be asymptomatic, the condition is associated with an increased risk of complications such as thrombosis and bleeding tendencies, necessitating appropriate management tailored to individual cases. Hemostasis analyzer systems are automated analytical devices designed for comprehensive evaluation of blood coagulation function. These systems enable rapid and accurate measurement of multiple parameters, including coagulation time, platelet function, and fibrin formation, thus facilitating a holistic assessment of hemostatic function. A 76-year-old male patient presented to our hospital. At the age of 65, he received treatment for promyelocytic leukemia and achieved remission. At 75 years, he developed leukocytosis, thrombocytosis, and progressive anemia. A comprehensive examination, including bone marrow biopsy and genetic testing, revealed a JAK2 mutation, leading to the diagnosis of ET. At the age of 76 years, he complained of chest discomfort during exertion. Further investigation revealed severe aortic valve stenosis and two-vessel coronary artery disease. The patient underwent aortic valve replacement and three-vessel coronary artery bypass grafting. A hemostasis analyzer system was used to monitor coagulation function throughout the procedure. Compared with the normal range, his coagulation profile showed a tendency toward hypercoagulability. Intraoperative and postoperative transfusions were performed as required. The patient's postoperative course was uneventful without any complications related to bleeding or thrombosis., Competing Interests: Human subjects: Consent was obtained or waived by all participants in this study. Conflicts of interest: In compliance with the ICMJE uniform disclosure form, all authors declare the following: Payment/services info: All authors have declared that no financial support was received from any organization for the submitted work. Financial relationships: All authors have declared that they have no financial relationships at present or within the previous three years with any organizations that might have an interest in the submitted work. Other relationships: All authors have declared that there are no other relationships or activities that could appear to have influenced the submitted work., (Copyright © 2024, Nakajima et al.)
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- 2024
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31. Transprosthetic cuff leakage of a bovine pericardial aortic bioprosthesis in a redo case.
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Nakajima T, Iba Y, Shibata T, Tsushima S, and Kawaharada N
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A 79-year-old man underwent bioprosthetic valve replacement for aortic regurgitation 10 years previously (Carpentier-Edwards PERIMOUNT Magna Ease, 21 mm; Edwards Lifesciences, Irvine, CA, USA). The indexed effective orifice area decreased to 0.422 cm
2 /m2 , and heart failure symptoms appeared. The patient underwent aortic valve replacement through a redo median sternotomy. A perivalvular leak was observed on transesophageal echocardiography at the time of weaning from cardiopulmonary bypass. The patient was judged to have a leak characteristic of bioprosthetic valves and was monitored closely. Postoperative echocardiography showed that the perivalvular leak had decreased to a trivial level, indicating that the intraoperative decision had been correct. We report this case because such intraoperative judgments are difficult to make., Competing Interests: Conflict of interestThe authors declare no competing interests., (© Indian Association of Cardiovascular-Thoracic Surgeons 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.)- Published
- 2024
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32. Intraoperative evaluation for endoleaks using the SCORPION procedure during endovascular aortic repair.
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Hosaka I, Uzuka T, Miki K, Shibata T, Sasaki A, and Kawaharada N
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Objectives: Endoleaks are important complications of endovascular aortic repair. Usually, endoleaks are judged indirectly by aortography or postoperative computed tomography. However, findings from these modalities are difficult to distinguish because of the divergency of endoleaks. Few studies have reported direct visualization of endoleaks. Herein, we introduce a direct procedure for intraoperatively evaluating endoleaks using angioscopy., Methods: From April 2023, consecutive patients with an abdominal aortic aneurysm, except emergency cases and those of narrow access, seen at Sunagawa City Medical Center were enrolled in our study. Endoleaks were detected by intraoperative angioscopy using a novel endovascular procedure., Results: Seven patients underwent endovascular aortic repair of an abdominal aortic aneurysm with intraoperative angioscopy. None of the enrolled patients experienced complications. The procedure revealed types 2, 3a, and 4 endoleaks., Conclusions: This is the first study to demonstrate intraoperative visualization of endoleaks using angioscopy. Direct findings observed by this novel procedure might provide information on the velocity and volume of the endoleak, providing comprehensive insights into the intra-sac hemodynamics after the endovascular aortic repair., Competing Interests: Declaration of conflicting interestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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- 2024
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33. Long-term outcomes of primary surgical repair for communicating DeBakey IIIb chronic dissecting aortic aneurysm.
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Miura S, Iba Y, Mukawa K, Nakanishi K, Mizuno T, Arihara A, Shibata T, Nakazawa J, Nakajima T, and Kawaharada N
- Abstract
Objective: This study aimed to evaluate the long-term outcomes of surgical strategies for communicating DeBakey IIIb chronic dissecting aortic aneurysm, considering the optimal primary surgical repair to prevent aortic events., Methods: From 2002 to 2021, 101 patients with communicating DeBakey IIIb chronic dissecting aortic aneurysm who underwent surgical repair were categorized based on the primary surgical repair: 1-stage repair of thoracoabdominal aortic aneurysm (TAAAR) (n = 22) or staged repair, such as descending thoracic aneurysm repair (DTAR) (n = 43) or total arch replacement with elephant trunk implantation (TARET) (n = 25), and thoracic endovascular aortic repair (TEVAR) (n = 11). Early and late postoperative outcomes were compared among the groups., Results: Early outcomes for TAAAR, DTAR, TARET, and TEVAR were associated with the incidence of stroke (9.1% vs 0% vs 4.0% vs 9.1%, respectively), spinal cord injury (13.6% vs 4.7% vs 8.0% vs 0%, respectively), and in-hospital mortality (9.1% vs 2.3% vs 0% vs 9.1%, respectively). During follow-up, the 10-year overall survival and 7-year aortic event-free rates for TAAAR, DTAR, TARET, and TEVAR were 61.8%, 71.6%, 21.5%, and 26.5% and 93.8%, 84.3%, 74.4%, and 51.4%, respectively. TAAAR had significantly higher overall survival ( P = .05) and aortic event-free rates ( P = .03) than TEVAR. TARET (hazard ratio, 2.27; P < .01) and TEVAR (hazard ratio, 3.40; P < .01) were independently associated with the incidence of aortic events during follow-up., Conclusions: Considering the optimal primary surgical repair based on long-term outcomes, TEVAR was not a durable treatment option. Patient-specific TAAAR or DTAR should be considered rather than defaulting to minimally invasive primary repairs for all patients with communicating DeBakey IIIb chronic dissecting aortic aneurysm., Competing Interests: The authors reported no conflicts of interest. The Journal policy requires editors and reviewers to disclose conflicts of interest and to decline handling or reviewing manuscripts for which they may have a conflict of interest. The editors and reviewers of this article have no conflicts of interest., (© 2024 The Author(s).)
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- 2024
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34. A screw-type pacemaker lead implanted in the right atrium perforated the ascending aorta.
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Nakajima T, Iba Y, Shibata T, Osamura A, Kamiyama N, Nishikawa R, Nakazawa J, and Kawaharada N
- Abstract
Background: Perforation by pacemaker leads, although rare, is a complication reported since the introduction of pacemaker therapy. Although historically reported frequencies were as high as 5%, recent reports have cited frequencies ranging from 1 to 2%. We report a case where a screw-type atrial lead slightly penetrated the right atrial wall, causing chronic abrasion of the ascending aorta, resulting in shock., Case Presentation: A 54-year-old male presented with dilated cardiomyopathy diagnosed at 40 years of age when he developed decompensated heart failure. Despite ongoing treatment, his heart failure worsened, leading to hospitalization at the age of 54. During his hospital stay, he experienced cardiac arrest that required cardiopulmonary resuscitation, followed by a return of spontaneous circulation. He was subsequently transferred to our institution after initiation of venoarterial extracorporeal membrane oxygenation (VA-ECMO) and an intra-aortic balloon pump (IABP). Echocardiography revealed an ejection fraction of 25%, left ventricular end-diastolic diameter of 60 mm, and severe mitral regurgitation (MR). Transcatheter mitral valve repair was performed to treat severe MR, followed by implantation of a cardiac resynchronization therapy defibrillator (CRT-D). Three months later, the patient was brought to our emergency department by ambulance because of hypotension. Contrast-enhanced computed tomography revealed pericardial effusion causing cardiac tamponade, necessitating emergency pericardial decompression via left fourth intercostal mini-thoracotomy and drain placement. Upon transfer to the intensive care unit, 1200 mL of blood was drained from the chest tube, prompting a return to the operating room for a median sternotomy. It was discovered that the pacemaker lead on the left side of the right atrium had slowly eroded into the aorta, leading to perforation. The ascending aorta was repaired and hemostasis was achieved; the patient recovered uneventfully and was discharged on postoperative day 18., Conclusions: The pacemaker lead perforated the right atrium; chronic abrasion of the lead against the ascending aorta resulted in bleeding from the ascending aorta 3 months later., (© 2024. The Author(s).)
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- 2024
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35. An Obligatory Role of Perivascular Adipose Tissue in Improved Saphenous Vein Graft Patency in Coronary Artery Bypass Grafting.
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Mikami T, Dashwood MR, Kawaharada N, and Furuhashi M
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- Humans, Vascular Patency, Tissue and Organ Harvesting methods, Graft Occlusion, Vascular etiology, Graft Occlusion, Vascular physiopathology, Stents, Coronary Artery Bypass methods, Saphenous Vein transplantation, Adipose Tissue transplantation
- Abstract
The gold standard graft for coronary artery bypass grafting (CABG) is the internal thoracic artery (ITA), and the second recommendation is the radial artery. However, complete revascularization with arterial grafts alone is often difficult, and the saphenous vein (SV) is the most commonly used autologous graft for CABG, because it is easier to use without restriction for the length of the graft. On the other hand, the patency of SV grafts (SVGs) is poor compared with that of arterial grafts. The SVG is conventionally harvested as a distended conduit with surrounding tissue removed, a procedure that may cause vascular damage. A no-touch technique of SVG harvesting has been reported to result in improved long-term patency in CABG comparable to that when using the ITA for grafting. Possible reasons for the excellent long-term patency of no-touch SVGs are the physical support provided by preserved surrounding perivascular adipose tissue, preservation of the vascular wall structure including the vasa vasorum, and production of adipocyte-derived factors. In this review, we discuss recent strategies aimed at improving the performance of SVGs, including no-touch harvesting, minimally invasive harvesting and mechanical support using external stents.
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- 2024
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36. A Suspected Case of Adhesion to the Iliac Vein During the Left Femoral Arthroplasty.
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Nakajima T, Shibata T, Iba Y, Kosukegawa I, and Kawaharada N
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An 85-year-old man underwent hemiarthroplasty for a left intertrochanteric femoral fracture at another hospital two years prior. While under outpatient monitoring, the left femur displacement occurred. Therefore, total hip arthroplasty of the left hip was scheduled. However, during acetabular cup insertion damage to the inner plate led to a sudden decrease in blood pressure from 120 to 60 mmHg. The physicians suspected a pelvic vascular injury and promptly stopped the procedure. In case of adhesion between the acetabular cup and the left iliac vein, intraoperative vascular damage would be repaired via endovascular intervention. Subsequently, orthopedic surgery was cautiously performed, taking into account the potential of a vascular injury. The surgery proceeded as planned without vascular intervention. This case involved a patient with suspected injury to the iliac vein and artery during acetabular cup placement. Following comprehensive enhanced CT and angiography tests, orthopedic surgery was performed in preparation for potential vascular damage, demonstrating the multidisciplinary approach to managing such cases., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2024, Nakajima et al.)
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- 2024
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37. Simultaneous delineation of collateral circulation to Adamkiewicz artery via internal thoracic artery and endoleak with an ultrahigh-resolution computed tomography.
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Yoshikawa K, Shibata T, Iba Y, Ogura K, Misumi S, and Kawaharada N
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- Humans, Endoleak diagnostic imaging, Endoleak etiology, Endoleak surgery, Collateral Circulation, Tomography, X-Ray Computed, Spinal Cord blood supply, Mammary Arteries, Aortic Aneurysm, Thoracic diagnostic imaging, Aortic Aneurysm, Thoracic surgery
- Abstract
Competing Interests: Disclosures None.
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- 2024
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38. A Case of Cerebral Arteriovenous Malformation and Malformation of the Lower Limbs.
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Nakajima T, Shibata T, Iba Y, Nakanishi K, and Kawaharada N
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The case involves a 37-year-old female who was diagnosed with undifferentiated immunodeficiency and protein-losing gastroenteropathy at the age of 26 and was under outpatient care in the gastroenterology department while taking Prednisolone 15mg. At the age of 37, she experienced loss of consciousness and was diagnosed with a right occipital lobe arteriovenous malformation upon investigation. Although initially managed conservatively, she presented the following month with a right-sided headache and vomiting and was urgently transported to our hospital. Imaging with contrast-enhanced CT revealed bleeding from the arteriovenous malformation. Emergency craniotomy was performed, followed by ventricular drainage. Two weeks later, she underwent transcatheter arterial embolization of the main feeder via the right femoral artery approach, followed by excision of the arteriovenous malformation the next day. Subsequently, she had an uneventful recovery. A confirmation CT angiography before discharge revealed severe stenosis of the right common femoral artery, leading to a referral to the cardiovascular surgery department. The stenosis was attributed to the Pro-Glide used for hemostasis during the embolization procedure. Repair surgery was performed, during which CT angiography revealed arteriovenous malformations in both the popliteal fossae and the foot., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2024, Nakajima et al.)
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- 2024
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39. Thoracic and cardiovascular surgeries in Japan during 2021 : Annual report by the Japanese Association for Thoracic Surgery.
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Yoshimura N, Sato Y, Takeuchi H, Abe T, Endo S, Hirata Y, Ishida M, Iwata H, Kamei T, Kawaharada N, Kawamoto S, Kohno K, Kumamaru H, Minatoya K, Motomura N, Nakahara R, Okada M, Saji H, Saito A, Tsuchida M, Suzuki K, Takemura H, Taketani T, Toh Y, Tatsuishi W, Yamamoto H, Yasuda T, Watanabe M, Matsumiya G, Sawa Y, Shimizu H, and Chida M
- Subjects
- Humans, Japan, Societies, Medical, Thoracic Surgery, Thoracic Surgical Procedures
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- 2024
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40. Mid-term outcomes of physician-modified endograft therapy for complex aortic aneurysms.
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Shibata T, Mitsuoka H, Iba Y, Hashizume K, Hongo N, Yasuhara K, Kuwada N, Katada Y, Hashiguchi H, Uzuka T, Murai Y, Nakazawa TJ, and Kawaharada N
- 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., (© The Author(s) 2024. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery.)
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- 2024
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41. Rare coronary artery anomaly: left anterior descending artery origin form right coronary cusp.
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Nakajima T, Nakanishi K, Shibata T, Ogura K, and Kawaharada N
- Abstract
Competing Interests: We have no COI.
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- 2024
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42. Huge, Infected Pancreatic Necrosis After Total Arch Replacement in a Patient With Immunoglobulin G4-Related Syndrome.
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Nakajima T, Iba Y, Shibata T, Arihara A, and Kawaharada N
- Abstract
A 77-year-old male patient with immunoglobulin (Ig)G4-related disease was diagnosed with a 60-mm aortic arch aneurysm and atherosclerosis of the aorta advanced throughout the body. Aortic arch replacement surgery was performed with circulatory arrest at 28°C. One week later, the patient developed acute pancreatitis, followed by encapsulated necrosis in the chronic phase. After debridement surgery, the patient's condition improved., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2024, Nakajima et al.)
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- 2024
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43. Identification of a Dissection Site in the Internal Thoracic Artery Using Fluorescence Imaging: A Case Report.
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Nakajima T, Iba Y, Shibata T, Ohkawa A, and Kawaharada N
- Abstract
A 66-year-old man with a history of type 2 diabetes mellitus who was undergoing hemodialysis presented with angina. Coronary angiography revealed triple-vessel coronary artery disease. He underwent multiple percutaneous coronary interventions due to recurrent restenosis and was referred for coronary artery bypass grafting (CABG). The left internal thoracic artery and bilateral saphenous veins were harvested under general anesthesia. Four CABGs were performed: left internal thoracic artery to the left anterior descending artery; saphenous vein graft to the obtuse marginal branch of the circumflex artery; and saphenous vein graft to two sites in the right coronary artery. Intraoperative assessment with transit-time flow measurements showed no abnormalities, and the surgery was completed. On postoperative day seven, coronary and graft angiography revealed dissection of the left internal thoracic artery at its midportion with restricted flow. On postoperative day eight, a surgical intervention was performed to excise the dissected segment of the left internal thoracic artery. The dissection site was identified by fluorescence imaging. The dissected segment was excised, and the artery was re-anastomosed. The postoperative course was uneventful, and graft angiography performed on postoperative day 22 confirmed good blood flow. Fluorescence imaging was valuable in identifying the dissection site in the left internal thoracic artery., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2024, Nakajima et al.)
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- 2024
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44. Physician-modified inner-branched endovascular repair with re-intervention.
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Tsushima S, Shibata T, and Kawaharada N
- Abstract
Objectives: Treatment of thoracoabdominal aortic aneurysms in high surgical risk patients can be challenging. Reports of physician-modified inner-branched endovascular repair (PMiBEVAR) are increasing. Despite low morbidity and mortality rates, re-interventions for endoleaks with these grafts are serious. There are no reports of additional treatment for PMiBEVAR failure., Methods/results: A 75-year-old man presented to our hospital with a Crawford's type IV thoracoabdominal aortic aneurysm. A PMiBEVAR was performed. Postoperative computed tomographic angiography revealed an endoleak from the inner branch of the right renal artery. A re-intervention was performed with coil embolization of the endoleak. Imaging after re-intervention showed successful obliteration of the endoleak., Conclusions: We thereby report a successful case of re-intervention for PMiBEVAR failure., Competing Interests: Declaration of conflicting interestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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- 2024
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45. Mitral valve repair for infective endocarditis after esophageal reconstruction: a case report.
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Tsushima S, Iba Y, Nakajima T, Nakazawa J, Shibata T, Ohkawa A, Hosaka I, Arihara A, and Kawaharada N
- Abstract
Background: In patients with retrosternal neo-esophageal conduit after right thoracotomy, the approach to cardiac surgery could be challenging. Particularly, in patients with infective endocarditis, there is a risk of injury to the conduit through standard median sternotomy. Moreover, right lung adhesions could be predicted. Herein, we present a case of successful mitral valve repair in a patient with infective endocarditis through a redo right thoracotomy after esophageal reconstruction., Case Presentation: A 66-year-old male patient was diagnosed with infective endocarditis and a large anterior mitral leaflet vegetation after a previous esophageal reconstruction via right thoracotomy for esophageal cancer. Due to the retrosternal esophageal reconstruction, we performed a mitral valve repair through a redo right thoracotomy. After resecting the vegetation, the defect was closed with a fresh autologous pericardial patch. Mitral valve annuloplasty was performed. Postoperatively, antibiotics controlled the infection. The patient was discharged on postoperative day 30., Conclusions: Successful mitral valve repair was performed for infective endocarditis through a redo right thoracotomy after esophageal reconstruction., (© 2024. The Author(s).)
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- 2024
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46. Initial two-day blood pressure management after endovascular aneurysm repair improves midterm outcomes by reducing the incidence of early type II endoleak.
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Miura S, Kurimoto Y, Maruyama R, Nojima M, Sasaki K, Masuda T, Nishioka N, Iba Y, Kawaharada N, and Naraoka S
- Subjects
- Humans, Endoleak epidemiology, Endoleak etiology, Endoleak prevention & control, Blood Pressure, Endovascular Aneurysm Repair, Treatment Outcome, Incidence, Retrospective Studies, Risk Factors, Aortic Aneurysm, Abdominal diagnostic imaging, Aortic Aneurysm, Abdominal surgery, Aortic Aneurysm, Abdominal complications, Blood Vessel Prosthesis Implantation adverse effects, Endovascular Procedures adverse effects
- Abstract
Objective: The aim of this study was to evaluate midterm outcomes of our novel strategy of postoperative initial 2-day blood pressure management (BPM) after endovascular aneurysm repair (EVAR) for the prevention of subsequent type II endoleak (T2EL) in a single-center series., Methods: Between 2008 and 2014, 137 patients who underwent EVAR for abdominal aortic aneurysm (AAA) were reviewed. Starting from 2013, the mean blood pressure was maintained between 75 and 90 mmHg for the initial 24 hours after EVAR followed by systolic pressure controlled below 120 mmHg during the next 24 hours in the treatment group (n = 76). The incidence of T2EL detected at 7 days, reintervention, and AAA sac diameter up to 5 years after EVAR were compared with those of the control group comprising of 60 consecutive patients who underwent standard EVAR without BPM prior to 2013., Results: Between the treatment group and the control group, significant differences were achieved in the incidence of T2EL at 7 days (19.7% vs 40.0%; P = .009), a mean decrease of AAA sac diameter at 1-year (-5.1 ± 4.9 vs -2.2 ± 6.7 mm; P = .013) and 2-year (-5.4 ± 7.7 vs -1.7 ± 10.8 mm; P = .045). In addition, there was a significant decrease in the incidence of T2EL detected at 7 days with the use of the Gore Excluder with 22.7% in the treatment group vs 80.0% in the control group (P < .001), which resulted in a significant decrease in the aneurysm sac diameter up to 4 years after EVAR. Survival rate without AAA sac enlargement at 5 years after EVAR (83.0% vs 70.0%; P = .021) in the treatment group was significantly higher than that of the control group, whereas no significant differences were observed in the freedom rates of reintervention, T2EL-related reintervention, and all-cause mortality between the groups., Conclusions: Postoperative initial 2-day BPM had a preventive effect on AAA sac enlargement until midterm periods, by reducing the incidence of T2EL at 7 days after EVAR. The usage of Gore Excluder under BPM was especially associated with sustained positive effects until the midterm follow-up., Competing Interests: Disclosures None., (Copyright © 2023 Society for Vascular Surgery. Published by Elsevier Inc. All rights reserved.)
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- 2024
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47. Scattered Media Elastic Fibers from the Aortic Root to the Ascending Aorta in a 30-Year-Old Marfan Syndrome Patient.
- Author
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Nakajima T, Iba Y, Naraoka S, Shibata T, Sugita S, and Kawaharada N
- Subjects
- Humans, Adult, Aorta, Thoracic, Aortic Valve diagnostic imaging, Aortic Valve surgery, Elastic Tissue, Treatment Outcome, Marfan Syndrome complications, Marfan Syndrome diagnosis, Marfan Syndrome surgery, Aortic Aneurysm diagnostic imaging, Aortic Aneurysm etiology, Aortic Aneurysm surgery
- Abstract
We present a case report of a 30-year-old Marfan syndrome patient who underwent a David procedure for severe aortic valve insufficiency and Valsalva aneurysm. Harvested aortic walls were examined by pathologists. Although the tunica media of the ascending aorta contained aligned elastic fibers, the aortic root media lacked aligned elastic fibers.
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- 2024
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48. Thoracic and cardiovascular surgeries in Japan during 2020 : Annual report by the Japanese Association for Thoracic Surgery.
- Author
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Matsumiya G, Sato Y, Takeuchi H, Abe T, Endo S, Hirata Y, Ishida M, Iwata H, Kamei T, Kawaharada N, Kawamoto S, Kohno K, Kumamaru H, Minatoya K, Motomura N, Nakahara R, Okada M, Saji H, Saito A, Shimizu H, Suzuki K, Takemura H, Taketani T, Toh Y, Tatsuishi W, Yamamoto H, Yasuda T, Watanabe M, Yoshimura N, Tsuchida M, and Sawa Y
- Subjects
- Humans, Japan epidemiology, Databases, Factual, Thoracic Surgery, Thoracic Surgical Procedures
- Published
- 2024
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49. A Case of Massive Retroperitoneal Hematoma After High-Energy Trauma.
- Author
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Nakajima T, Nakanishi K, Harada K, Narimatsu E, and Kawaharada N
- Abstract
A 66-year-old female suffered from high-energy trauma due to a traffic accident, resulting in injuries to the iliac artery and the superior mesenteric artery. She underwent endovascular embolization for vascular occlusion and an open surgical procedure to control bleeding from the superior mesenteric artery. A substantial retroperitoneal hematoma was observed on the right side, making primary closure challenging. A hematoma evacuation procedure was performed using a right retroperitoneal approach, successfully relieving the compression from the posterior aspect., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2023, Nakajima et al.)
- Published
- 2023
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50. Coronary Artery Bypass Grafting Using the No-Touch Great Saphenous Vein Graft Harvesting Technique: A Retrospective Study.
- Author
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Nakajima T, Shibata T, Miura S, Mukawa K, Mizuno T, Nakanishi K, Arihara A, Nakazawa J, Iba Y, and Kawaharada N
- Abstract
Background We focused on coronary artery bypass grafting using the great saphenous vein and compared the no-touch great saphenous vein and conventional great saphenous vein. Methods Coronary artery bypass grafting using the great saphenous vein was performed at our hospital over a 15-year period from 2007/04 to 2022/08. The primary endpoint was the patency of the great saphenous vein at discharge, and secondary endpoints were delayed healing of the great saphenous vein harvest wound, delayed healing of the mid-thoracic wound, and factors related to coronary artery bypass surgery. Results There were 183 patients who underwent coronary artery bypass surgery using the great saphenous vein during the study period. There were 131 male patients (72%) and 52 female patients (28%) with a mean age of 69 years (38-94 years). The method of harvesting the great saphenous vein was a no-touch great saphenous vein graft (NT-SVG) in 29 cases (16%) and conventional SVG in 154 cases (84%). Patients were divided into two groups: the NT-SVG group and the standard-collection saphenous vein graft (SVG) group. We compared graft patency at discharge, healing failure of the lower leg wound, healing failure of the mid-thoracic wound, and flow by transit-time flow measurement (TTFM). Conclusion There were no significant differences in perioperative outcomes between the NT-SVG and conventional SVG groups in this study., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2023, Nakajima et al.)
- Published
- 2023
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