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Molano F, Rey Chaves CE, Conde D, Girón F, Núñez-Rocha RE, Ayala D, González J, Cortés F, Cortés D, Fajardo E, Barón V. The Clinical Impact of Thoracic Endovascular Aortic Repair in the Management of Thoracic Aortic Diseases. J Endovasc Ther 2024; 31:853-861. [PMID: 36609171 PMCID: PMC11408976 DOI: 10.1177/15266028221148381] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
PURPOSE Thoracic endovascular aortic repair (TEVAR) has been described to be superior to an open surgical approach, and previous studies have found superiority in TEVAR by reducing overall morbidity and mortality rates. This study aimed to describe the outcomes of TEVAR for patients with thoracic aortic disease at a high complexity. MATERIALS AND METHODS Descriptive study, developed by a retrospective review of a prospectively collected database. Patients aged above 18 years who underwent TEVAR between 2012 and 2022 were included. Patient demographics, perioperative data, surgical outcomes, morbidity, and mortality were described. Statistical and multivariate analyses were made. Statistical significance was reached when p values were <0.05. RESULTS A total of 66 patients were included. Male patients were 60.61% and the mean age was 69.24 years. Associated aortic diseases were aneurysms (68.18%), ulcer-related (4.55%), intramural-related hematoma (7.58%), trauma-related pathology (1.52%), and aortic dissection (30.30%). The mean hospital stay was 18.10 days, and intensive care unit was required for 98.48%. At 30 days, the mortality rate was 10.61% and the reintervention rate was 21.21%. Increased intraoperative blood loss (p=0.001) and male sex (p=0.04) showed statistical relationship with mortality. Underweight patients have 6.7 and 11.4 times more risk of complications and endoleak compared with higher body mass index values (p=0.04, 95% confidence interval [CI]=0.82-7.21) and (p=0.02, 95% CI=1.31-12.57), respectively. CONCLUSION Thoracic endovascular aortic repair seems to be a feasible option for patients with thoracic aortic pathologies, with adequate rates of mortality and morbidity. Underweight patients seem to have an increased risk of overall morbidity and increased risk for endoleak. Further prospective studies are needed to prove our results. CLINICAL IMPACT Obesity and BMI are widely studied in the surgical literature. According to our study, there is a paradox regarding the outcomes of patients treated with TEVAR in terms of postoperative complications and mortality related to the body mass index. And shouldn't be considered as a high-risk feature in terms of postoperative morbidity and mortality in this procedure.
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Affiliation(s)
- Fernando Molano
- Hospital Militar Central, Bogotá, D.C., Colombia
- Department of Surgery, Hospital Universitario Mayor-Méderi, Bogotá. D.C., Colombia
| | | | - Danny Conde
- Department of Surgery, Hospital Universitario Mayor-Méderi, Bogotá. D.C., Colombia
- School of Medicine, Universidad del Rosario, Bogotá, D.C., Colombia
| | - Felipe Girón
- School of Medicine, Universidad del Rosario, Bogotá, D.C., Colombia
| | | | - Daniela Ayala
- School of Medicine, Universidad del Rosario, Bogotá, D.C., Colombia
| | - Juliana González
- School of Medicine, Universidad del Rosario, Bogotá, D.C., Colombia
| | - Felipe Cortés
- Department of Surgery, Hospital Universitario Mayor-Méderi, Bogotá. D.C., Colombia
| | - Diana Cortés
- School of Medicine, Universidad del Rosario, Bogotá, D.C., Colombia
| | - Ernesto Fajardo
- Department of Surgery, Hospital Universitario Mayor-Méderi, Bogotá. D.C., Colombia
- School of Medicine, Universidad del Rosario, Bogotá, D.C., Colombia
| | - Vladimir Barón
- Department of Surgery, Hospital Universitario Mayor-Méderi, Bogotá. D.C., Colombia
- School of Medicine, Universidad del Rosario, Bogotá, D.C., Colombia
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Sheng W, Xia W, Niu Z, Yang H. Incidence of Acute Kidney Injury and Risk Factors of Prognosis in Patients with Acute Stanford Type A Aortic Dissection. Ann Thorac Cardiovasc Surg 2023; 29:249-255. [PMID: 37005281 PMCID: PMC10587477 DOI: 10.5761/atcs.oa.22-00242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 03/06/2023] [Indexed: 04/03/2023] Open
Abstract
PURPOSE We aimed to investigate the prognosis and impact of postoperative acute kidney injury (AKI) in acute Stanford type A aortic dissection (ATAAD) patients, and to analyze the predictors of short- and medium-term survival. METHODS A total of 192 patients who underwent ATAAD surgery were included between May 2014 and May 2019. Perioperative data of these patients were analyzed. All of the discharged patients were followed up for 2 years. RESULTS Postoperative AKI was identified in 43 of 192 patients (22.4%). The two-year survival rate of patients with AKI after discharge was 88.2% and that without AKI was 97.2%.The difference was statistically significant (χ2 = 5.355, log-rank P = 0.021). Cox hazards regression showed that age (hazard ratio [HR], 1.070; P = 0.002), cardiopulmonary bypass (CPB) time (HR, 1.026; P = 0.026), postoperative AKI (HR, 3.681; P = 0.003), and red blood cell transfusion (HR, 1.548; P = 0.001) were independent risk factors for the short- and medium-term total mortality of ATAAD patients. CONCLUSION The incidence of postoperative AKI is high in ATAAD, and the mortality of patients with AKI increases significantly within 2 years. Age, CPB time, and red blood cell transfusion were also independent risk factors for short-and medium-term prognoses.
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Affiliation(s)
- Wei Sheng
- Department of Cardiovascular Surgery, Qingdao Municipal Hospital, Medical College of Qingdao University, Qingdao, Shandong, China
| | - Wei Xia
- Department of Cardiology, Qingdao Municipal Hospital, Medical College of Qingdao University, Qingdao, Shandong, China
| | - Zhaozhuo Niu
- Department of Cardiovascular Surgery, Qingdao Municipal Hospital, Medical College of Qingdao University, Qingdao, Shandong, China
| | - Haiqin Yang
- Department of Mental Intervention, Qingdao Preferential Hospital, Qingdao, Shandong, China
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Yang C, Hou P, Wang D, Wang Z, Duan W, Liu J, Yu S, Fu F, Jin Z. Serum Myoglobin Is Associated With Postoperative Acute Kidney Injury in Stanford Type A Aortic Dissection. Front Med (Lausanne) 2022; 9:821418. [PMID: 35273980 PMCID: PMC8902311 DOI: 10.3389/fmed.2022.821418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 01/31/2022] [Indexed: 01/04/2023] Open
Abstract
Background The correlation between rhabdomyolysis and postoperative acute kidney injury has been reported in several surgical procedures. As a good predictor of rhabdomyolysis-related acute kidney injury, an elevated serum myoglobin level was often observed after total aortic arch replacement combined with frozen elephant trunk implantation. However, the correlation between serum myoglobin and acute kidney injury in such patients had not been established. Methods Totally 398 stanford type A aortic dissection patients who underwent total aortic arch replacement combined with frozen elephant trunk implantation were enrolled in this retrospective study. The correlations between serum myoglobin and acute kidney injury as well as the 30-day mortality were assessed. Results Overall, 268(67.3%) patients had acute kidney injury (KDIGO stage 1 or higher) and 75(18.8%) had severe acute kidney injury (KDIGO stage 2&3). Patients who developed acute kidney injury had higher level of perioperative serum myoglobin than patients without acute kidney injury. After adjusting for known acute kidney injury risk factors, logarithmically transformed preoperative serum myoglobin [OR = 1.58 (95% CI, 1.26–1.95), P < 0.001] and postoperative day 1 serum myoglobin [OR = 3.47 (95%CI, 2.27–5.29), P < 0.001] were associated with severe acute kidney injury. These correlation persisted after adjustment for decline in filtration via change in serum creatinine (ΔCr) and biomarkers of cardiac and kidney injury, including N-terminal prohormone of brain natriuretic peptide, cardiac troponin I, creatine kinase-MB, serum creatinine and Cystatin C. Compared with the clinical model, sMb considerably improved the risk discrimination and reclassification for AKI. Conclusion For stanford type A aortic dissection patients underwent total aortic arch replacement with frozen elephant trunk implantation, serum myoglobin can improve postoperative acute kidney injury risk classification. Rhabdomyolysis may be an important supplement to the existing knowledge on the mechanism of acute kidney injury.
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Affiliation(s)
- Chen Yang
- Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Peng Hou
- Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Dongxu Wang
- Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Zhenguo Wang
- Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Weixun Duan
- Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Jincheng Liu
- Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Shiqiang Yu
- Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Feng Fu
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, China
| | - Zhenxiao Jin
- Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
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Li L, Zou G, Liu J. Preoperative Glucose-to-Lymphocyte Ratio is an Independent Predictor for Acute Kidney Injury After Cardiac Surgery in Patients in Intensive Care Unit. Int J Gen Med 2021; 14:6529-6537. [PMID: 34675620 PMCID: PMC8518472 DOI: 10.2147/ijgm.s335896] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 09/23/2021] [Indexed: 12/13/2022] Open
Abstract
Background We aimed to investigate the association between preoperative glucose-to-lymphocyte ratio (GLR) and cardiac surgery associated with acute kidney injury (CSA-AKI) in patients in the intensive care unit (ICU). Methods The Medical Information Mart for Intensive Care IV (MIMIC-IV version 1.0) database was used to identify adults' patients who performed cardiac surgery during ICU stay. The primary outcome was the development of AKI based on the KDIGO criteria. Multivariable logistic regression was applied to investigate the association between GLR and clinical outcomes, and propensity score matching (PSM) and inverse probability of treatment weighting (IPTW) were also used to validate our findings. Results The optimal cut-off value for GLR was 1.28. Among the 7181 patients who conducted cardiac surgery, 2072 high-GLR group (≥1.28) patients and 2072 low-GLR group (<1.28) patients, had similar propensity scores were included in this study. After matching, the high-GLR group had a significantly higher incidence of AKI (odds ratio, OR, 3.28, 95% confidence index, 95% CI, 2.81-3.84, P <0.001) even after adjustment for confounding factors. Moreover, the performance of GLR was superior to that of SOFA scores and GLR plus clinical model could add more net benefit for CSA-AKI than clinical model alone. Conclusion Preoperative GLR could serve as a good predictor for CSA-AKI in patients in ICU.
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Affiliation(s)
- Lu Li
- Department of Nephrology, The First People's Hospital of Jiangxia District, Wuhan, 430299, People's Republic of China
| | - Gaorui Zou
- Department of Anesthesiology, Wuhan No. 1 Hospital, Wuhan, 430022, People's Republic of China
| | - Jie Liu
- Department of Nephrology, The First People's Hospital of Jiangxia District, Wuhan, 430299, People's Republic of China
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Li B, Chen QL, Yao BC, Jiang N, Zhao F, Ren M, Sun J, Xu LN, Guo ZG. Risk factors of continuous renal replacement therapy following total aortic arch replacement under moderate hypothermia. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1448. [PMID: 34734000 PMCID: PMC8506709 DOI: 10.21037/atm-21-3905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 08/30/2021] [Indexed: 12/29/2022]
Abstract
BACKGROUND Stanford type A aortic dissection (TAAD) has a sudden onset and high mortality, and emergency total aortic arch replacement (TAAR) is the main treatment option for TAAD. The mortality rate of patients with postoperative acute kidney injury (AKI) combined with continuous renal replacement therapy (CRRT) is remarkable higher than that of patients without AKI. However, incidence of AKI and risk factors for CRRT following TAAR isn't entirely understood. METHODS From October 2018 to March 2021, all patients with Stanford type A dissection who underwent total arch replacement surgery under MHCA were enrolled. According to whether CRRT treatment was performed, participants were divided into a CRRT group (n=49) and control group (n=72). Both groups incorporated the brain protection strategy of moderate hypothermia, and the left common carotid artery and the innominate artery were perfused anteriorly. Relevant medical data was collected. RESULTS Age, gender, and a history of smoking and drinking were not significantly different between the 2 groups (P>0.1). There were statistical differences between the 2 groups in aortic sinus diameter and Bentall procedure (P≤0.05). Univariate analysis revealed that fresh frozen plasma was a protective factor (P<0.05) and the intraoperative transfusion volume of red blood cells, platelets, fresh frozen plasma, autologous blood used for intraoperative bleeding, aortic sinus diameter, and Bentall procedure were risk factors (P<0.1). Multivariate analysis showed that the Bentall procedure and intraoperative bleeding were risk factors for CRRT (P<0.05), and the aortic sinus diameter and intraoperative transfusion score were also risk factors for CRRT (P<0.05). Receiver operating characteristic (ROC) analysis demonstrated that the model of aortic sinus diameter and intraoperative transfusion score had more significantly different discriminatory powers. CONCLUSIONS The Bentall procedure, intraoperative bleeding, aortic sinus diameter, and intraoperative transfusion score were risk factors for postoperative CRRT. The model of aortic sinus diameter and intraoperative transfusion score had more significantly different discriminatory powers.
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Affiliation(s)
- Bo Li
- Department of Cardiovascular Surgery, Tianjin Chest Hospital, Tianjin, China
| | - Qing-Liang Chen
- Department of Cardiovascular Surgery, Tianjin Chest Hospital, Tianjin, China
| | - Bo-Chen Yao
- Department of Cardiovascular Surgery, Tianjin Chest Hospital, Tianjin, China
| | - Nan Jiang
- Department of Cardiovascular Surgery, Tianjin Chest Hospital, Tianjin, China
| | - Feng Zhao
- Department of Cardiovascular Surgery, Tianjin Chest Hospital, Tianjin, China
| | - Min Ren
- Tianjin Institute of Cardiovascular Diseases, Tianjin, China
| | - Jing Sun
- Department of Cardiovascular Surgery, Tianjin Chest Hospital, Tianjin, China
| | - Li-Na Xu
- Department of Cardiovascular Surgery, Tianjin Chest Hospital, Tianjin, China
| | - Zhi-Gang Guo
- Department of Cardiovascular Surgery, Tianjin Chest Hospital, Tianjin, China
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Li L, Wang M, Li J, Guan X, Xin P, Wang X, Liu Y, Li H, Jiang W, Gong M, Zhang H. Short Term Prognosis of Renal Artery Stenosis Secondary to Acute Type B Aortic Dissection With TEVAR. Front Cardiovasc Med 2021; 8:658952. [PMID: 33969023 PMCID: PMC8102698 DOI: 10.3389/fcvm.2021.658952] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 03/29/2021] [Indexed: 12/26/2022] Open
Abstract
Objective: To determine the effect of renal artery stenosis (RAS) resulting from acute type B aortic dissection (ATBAD) with thoracic endovascular aortic repair (TEVAR) on early prognosis in patients with ATBAD. Methods: A total of 129 ATBAD patients in the National Acute Aortic Syndrome Database (AASCN) who underwent TEVAR between 2019 and 2020 were enrolled in our study. Patients were divided into two groups: the RAS group and the non-RAS group. Results: There were 21 RAS patients (16.3%) and 108 non-RAS patients (83.7%) in our cohort. No patient in our cohort died during the 1-month follow-up. There was no significant difference in preoperative creatinine clearance rate (CCr) between the two groups (90.6 ± 46.1 μmol/L in the RAS group vs. 78.7 ± 39.2 μmol/L in the non-RAS group, P = 0.303) but the RAS group had a significantly lower estimated glomerular filtration rate (eGFR) than the non-RAS group (83.3 ± 25.0 vs. 101.9 ± 26.9 ml/min, respectively; P = 0.028).One month after TEVAR, CCr was significantly higher (99.0 ± 68.1 vs. 78.5 ± 25.8 ml/min, P = 0.043) and eGFR (81.7 ± 23.8 vs. 96.0 ± 20.0 ml/min, P = 0.017) was significantly lower in the RAS group than in the non-RAS group. Conclusions: In ATBAD, RAS could result in acute kidney injury (AKI) in the early stage after TEVAR. The RAS group had a high incidence of hypertension. These results suggest that patients with RAS may need further treatment.
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Affiliation(s)
- Lei Li
- Department of Cardiac Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Beijing Aortic Disease Center, Cardiovascular Surgery Center, Beijing, China.,Beijing Lab for Cardiovascular Precision Medicine, Beijing, China
| | - Maozhou Wang
- Department of Cardiac Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Beijing Aortic Disease Center, Cardiovascular Surgery Center, Beijing, China.,Beijing Lab for Cardiovascular Precision Medicine, Beijing, China
| | - Jinzhang Li
- Department of Cardiac Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Beijing Aortic Disease Center, Cardiovascular Surgery Center, Beijing, China.,Beijing Lab for Cardiovascular Precision Medicine, Beijing, China
| | - Xinliang Guan
- Department of Cardiac Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Beijing Aortic Disease Center, Cardiovascular Surgery Center, Beijing, China.,Beijing Lab for Cardiovascular Precision Medicine, Beijing, China
| | - Pu Xin
- Beijing Aortic Disease Center, Cardiovascular Surgery Center, Beijing, China.,Beijing Lab for Cardiovascular Precision Medicine, Beijing, China.,Department of Medical Imaging, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Xiaolong Wang
- Department of Cardiac Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Beijing Aortic Disease Center, Cardiovascular Surgery Center, Beijing, China.,Beijing Lab for Cardiovascular Precision Medicine, Beijing, China
| | - Yuyong Liu
- Department of Cardiac Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Beijing Aortic Disease Center, Cardiovascular Surgery Center, Beijing, China.,Beijing Lab for Cardiovascular Precision Medicine, Beijing, China
| | - Haiyang Li
- Department of Cardiac Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Beijing Aortic Disease Center, Cardiovascular Surgery Center, Beijing, China.,Beijing Lab for Cardiovascular Precision Medicine, Beijing, China
| | - Wenjian Jiang
- Department of Cardiac Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Beijing Aortic Disease Center, Cardiovascular Surgery Center, Beijing, China.,Beijing Lab for Cardiovascular Precision Medicine, Beijing, China
| | - Ming Gong
- Department of Cardiac Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Beijing Aortic Disease Center, Cardiovascular Surgery Center, Beijing, China.,Beijing Lab for Cardiovascular Precision Medicine, Beijing, China
| | - Hongjia Zhang
- Department of Cardiac Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Beijing Aortic Disease Center, Cardiovascular Surgery Center, Beijing, China.,Beijing Lab for Cardiovascular Precision Medicine, Beijing, China
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Seike Y, Yokawa K, Inoue Y, Shijo T, Uehara K, Sasaki H, Fukuda T, Matsuda H. Preoperative renal function affects outcomes of surgery for aortic arch aneurysm in the elderly. Gen Thorac Cardiovasc Surg 2020; 69:1050-1059. [PMID: 33237445 DOI: 10.1007/s11748-020-01550-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 11/07/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVES This study aimed to determine the optimal surgical procedure for arch aneurysm in the elderly based on preoperative comorbidities, especially focusing on renal function. METHODS The medical records of 374 patients who experienced arch surgery between 2008 and 2019 were reviewed. Among the 374 patients, 92 who underwent total arch replacement (TAR) were assigned to the TAR group and the remaining 152 who underwent debranching thoracic endovascular aortic repair (DTEVAR) were assigned to the DTEVAR group. RESULTS Chronic kidney disease (CKD) was an independent risk factor of mortality (hazard ratio, 2.85; p = 0.029) in the TAR group but not in the DTEVAR. In the Grade I/II category CKD (estimated glomerular filtration rate (eGFR) > 60 mL/min), freedom from all-cause mortality was significantly higher in the TAR group than in the DTEVAR group (p = 0.0155, log-rank). Freedom from all-cause mortality was comparable between the two groups in the Grade IIIa CKD (eGFR, 45-60) (p = 0.584, log-lank), Grade IIIb (eGFR, 30-45) (p = 0.822), and Grade IV/V (eGFR < 30) (p = 0.548). CONCLUSION In elderly patients who underwent TAR, CKD was the independent risk factor of the mortality, but not in the patients who underwent debranching TEVAR. Conversion of surgical strategy from TAR to debranching TEVAR in the treatment of aortic arch aneurysms in the elderly with CKD below Grade IIIa is acceptable considering that less-invasiveness. While, in the elderly with Grade I/II CKD, TAR still remains as a primary choice for the arch repair for better mid-term survival.
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Affiliation(s)
- Yoshimasa Seike
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center, 6-1 Kishibe Shinmachi, Suita, Osaka, 564-8565, Japan
| | - Koki Yokawa
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center, 6-1 Kishibe Shinmachi, Suita, Osaka, 564-8565, Japan
| | - Yosuke Inoue
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center, 6-1 Kishibe Shinmachi, Suita, Osaka, 564-8565, Japan
| | - Takayuki Shijo
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center, 6-1 Kishibe Shinmachi, Suita, Osaka, 564-8565, Japan
| | - Kyokun Uehara
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center, 6-1 Kishibe Shinmachi, Suita, Osaka, 564-8565, Japan
| | - Hiroaki Sasaki
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center, 6-1 Kishibe Shinmachi, Suita, Osaka, 564-8565, Japan
| | - Tetsuya Fukuda
- Department of Radiology, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Hitoshi Matsuda
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center, 6-1 Kishibe Shinmachi, Suita, Osaka, 564-8565, Japan.
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