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Ise H, Oyama K, Ushioda R, Hirofuji A, Kamada K, Yoshida Y, Akhyari P, Kamiya H. Hypothermic circulatory arrest at 20 ℃ does not deteriorate coagulopathy compared to 28 ℃ in a pig model. J Artif Organs 2024:10.1007/s10047-024-01449-9. [PMID: 38780671 DOI: 10.1007/s10047-024-01449-9] [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: 07/03/2022] [Accepted: 03/28/2024] [Indexed: 05/25/2024]
Abstract
It is believed that a lower temperature setting of hypothermic circulatory arrest (HCA) in thoracic aortic surgery causes coagulopathy, resulting in excessive bleeding. However, experimental studies that eliminate clinical factors are lacking. The objective of this study is to investigate the influence of the temperature setting of HCA on coagulation in a pig model. Ten pigs were divided into the following two groups: moderate temperature at 28 °C (group M, n = 5) or lower temperature at 20 °C (group L, n = 5). Two hours of HCA during a total of 4 h of cardiopulmonary bypass (CPB) were performed. Blood samples were obtained at the beginning (T1) and the end (T2) of the surgery, and coagulation capability was analyzed through standard laboratory tests (SLTs) and rotational thromboelastometry (ROTEM). In SLTs, hemoglobin, fibrinogen, platelet count, prothrombin time, and activated partial thromboplastin time were analyzed. In ROTEM analyses, clotting time and clot formation time of EXTEM, maximum clot firmness (MCF), and maximum clot elasticity (MCE) of EXTEM and FIBTEM were analyzed. Fibrinogen decreased significantly in both groups (group M, p = 0.008; group L, p = 0.0175) at T2, and FIBTEM MCF and MCE also decreased at T2. There were no differences regarding changes in parameters of SLTs and ROTEM between groups. CPB decreases coagulation capacity, contributed by fibrinogen. However, a lower temperature setting of HCA at 20 °C for 2 h did not significantly affect coagulopathy compared to that of HCA at 28 °C after re-warming to 37 °C.
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Affiliation(s)
- Hayato Ise
- Department of Cardiac Surgery, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan
- Department of Cardiac Surgery, University Hospital RWTH Aachen, Aachen, Germany
| | - Kyohei Oyama
- Department of Cardiac Surgery, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan.
| | - Ryohei Ushioda
- Department of Cardiac Surgery, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan
| | - Aina Hirofuji
- Department of Cardiac Surgery, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan
| | - Keisuke Kamada
- Department of Vascular Surgery, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Yuri Yoshida
- Department of Vascular Surgery, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Payam Akhyari
- Department of Cardiac Surgery, University Hospital RWTH Aachen, Aachen, Germany
| | - Hiroyuki Kamiya
- Department of Cardiac Surgery, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan
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Wang L, Zhong G, Lv X, Dong Y, Hou Y, Chen L. Clinical outcomes of mild versus moderate hypothermic circulatory arrest with antegrade cerebral perfusion in adult aortic arch surgery: A systematic review and meta-analysis. Perfusion 2024; 39:266-280. [PMID: 36476142 DOI: 10.1177/02676591221144169] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
OBJECTIVES In adult aortic arch surgery, moderate hypothermic circulatory arrest (HCA) with selective antegrade cerebral perfusion (SACP) (MoHACP) is widely used, but the application of mild HCA with SACP (MiHACP) is still controversial. This meta-analysis aimed to compare clinical outcomes using MiHACP or MoHACP. METHODS Studies comparing outcomes of MiHACP or MoHACP in adult aortic arch surgery were searched from four databases from inception through April 2022. Primary outcomes were postoperative permanent neurological deficit (PND), temporary neurological deficit (TND), and mortality. Secondary outcomes included other common complications. Meta-analysis was conducted using a random-effects model in all cases. RESULTS Eleven comparative studies were included, with 1555 patients in MiHACP group and 1499 patients in MoHACP group, and the mean HCA temperature were 29.4°C and 24.8°C, respectively. Postoperative PND, TND, mortality, paraplegia, dialysis, tracheotomy, reexploration for bleeding, and chest tube drainage volume were comparable in the two groups (p > 0.05). Ventilator time, intensive care unit and in-hospital length of stay were shorter in MiHACP group (p < 0.05). Outcomes were also comparable or had some benefits in MiHACP group when subgroup analyses were conducted according to hemiarch or total arch replacement, unilateral or bilateral SACP, HCA time, emergency aortic dissection surgery, and concomitant procedure. CONCLUSION The present meta-analysis showed acceptability of MiHACP in adult aortic arch surgery. Results need to be taken with caution as moderate risk of bias and very low quality of evidence were observed in this meta-analysis. Randomized controlled trials are needed for further analysis.
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Affiliation(s)
- Lei Wang
- Department of Cardiovascular Surgery, Fujian Medical University Union Hospital, Fuzhou, China
- Key Laboratory of Cardio-Thoracic Surgery (Fujian Medical University), Fujian Province University, Fuzhou, China
| | - Guodong Zhong
- Department of Pathology, the Second People's Hospital, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Xiaochai Lv
- Department of Cardiovascular Surgery, Fujian Medical University Union Hospital, Fuzhou, China
- Key Laboratory of Cardio-Thoracic Surgery (Fujian Medical University), Fujian Province University, Fuzhou, China
| | - Yi Dong
- Department of Cardiovascular Surgery, Fujian Medical University Union Hospital, Fuzhou, China
- Key Laboratory of Cardio-Thoracic Surgery (Fujian Medical University), Fujian Province University, Fuzhou, China
| | - Yanting Hou
- Department of Cardiovascular Surgery, Fujian Medical University Union Hospital, Fuzhou, China
- Key Laboratory of Cardio-Thoracic Surgery (Fujian Medical University), Fujian Province University, Fuzhou, China
| | - Liangwan Chen
- Department of Cardiovascular Surgery, Fujian Medical University Union Hospital, Fuzhou, China
- Key Laboratory of Cardio-Thoracic Surgery (Fujian Medical University), Fujian Province University, Fuzhou, China
- Fujian Provincial Special Reserve Talents Laboratory, Fuzhou, China
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Shimamura J, Yokoyama Y, Kuno T, Fujisaki T, Fukuhara S, Takayama H, Ota T, Chu MW. Systematic review and network meta-analysis of various nadir temperature strategies for hypothermic circulatory arrest for aortic arch surgery. Asian Cardiovasc Thorac Ann 2023; 31:102-114. [PMID: 36571785 DOI: 10.1177/02184923221144959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND The optimal nadir temperature for hypothermic circulatory arrest during aortic arch surgery remains unclear. We aimed to assess and compare clinical outcomes of all three temperature strategies (deep, moderate, and mild hypothermia) using a network meta-analysis. METHODS After literature search with MEDLINE and EMBASE through December 2021, studies comparing clinical outcomes with deep (<20°C), moderate (20-28°C), or mild (>28°C) hypothermic circulatory arrest were included. The outcomes of interest were perioperative mortality, stroke, transient ischemia attack (TIA), acute kidney injury (AKI), postoperative bleeding, operative time, and length of hospital stay. RESULTS Twenty-four comparative studies were identified, including 6018 patients undergoing aortic arch surgery using hypothermic circulatory arrest (deep: 2,978, moderate: 2,525, and mild: 515). Compared to deep hypothermia, mild and moderate hypothermia were associated with lower mortality (mild vs. deep: odds ratio [OR] 0.50; 95% confidence interval (CI) 0.29-0.87, moderate vs. deep: OR 0.68; 95% CI 0.54-0.86). In addition, mild hypothermia was associated with lower stroke (OR 0.50; 95% CI 0.28-0.89), AKI (OR 0.36; 95% CI 0.15-0.88) and postoperative bleeding (OR 0.55; 95% CI 0.31-0.97) compared to deep hypothermia. There was no significant difference between mild and moderate hypothermia in mortality, AKI or bleeding occurrence, while mild hypothermia was associated with shorter operative time and hospital stay. There was no significant difference in TIA rate among three groups. CONCLUSIONS Mild hypothermia was associated with overall more favorable clinical outcomes with comparable neurological complications compared to deep hypothermia. Furthermore, considering the shorter operative time and hospital stay compared with moderate hypothermia, mild hypothermia may be warranted when appropriate adjunctive cerebral perfusion is employed.
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Affiliation(s)
- Junichi Shimamura
- Division of Cardiac Surgery, Department of Surgery, 10033London Health Sciences Centre, London, Ontario, Canada
| | - Yujiro Yokoyama
- Department of Surgery, 14352Easton Hospital, Easton, PA, USA
| | - Toshiki Kuno
- Division of Cardiology, Montefiore Medical center, Albert Einstein Medical College, New York, NY, USA
| | - Tomohiro Fujisaki
- Department of Medicine, Icahn School of Medicine at Mount Sinai, Mount Sinai St Luke's and West, NY, USA
| | - Shinichi Fukuhara
- Department of Cardiac Surgery, University of Michigan Cardiovascular Center, Ann Arbor, MI, USA
| | - Hiroo Takayama
- Division of Cardiothoracic Surgery, Department of Surgery, New York Presbyterian Hospital, Columbia University Medical Center, New York, NY, USA
| | - Takeyoshi Ota
- Section of Cardiac and Thoracic Surgery, Department of Surgery, 2462The University of Chicago, Chicago, IL, USA
| | - Michael Wa Chu
- Division of Cardiac Surgery, Department of Surgery, 10033London Health Sciences Centre, London, Ontario, Canada
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Ise H, Oyama K, Kunioka S, Shirasaka T, Kanda H, Akhyari P, Kamiya H. Hypothermic circulatory arrest does not induce coagulopathy in vitro. J Artif Organs 2022; 25:314-322. [PMID: 35303203 DOI: 10.1007/s10047-022-01324-5] [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: 09/15/2021] [Accepted: 03/03/2022] [Indexed: 11/27/2022]
Abstract
Hypothermic circulatory arrest (HCA) is an essential procedure during aortic surgery to protect organs; however, hypothermia is believed to cause coagulopathy, which is a major fatal complication. This study aimed to clarify the impact of hypothermia on coagulation by eliminating clinical biases in vitro. In the hypothermic storage study, blood samples from five healthy volunteers were stored at 37 ℃ (group N) for 3 h or at 20 ℃ for 2 h, followed by 1 h of rewarming at 37 ℃ (group H). Thromboelastography was performed before and after 3 h of storage. In the mock circulation loop (MCL) study, blood samples were placed in the MCL and (a) maintained at 37 ℃ for 4 h (group N, n = 5), or (b) cooled to 20 ℃ to simulate HCA with a 0.1 L/min flow rate for 3 h and then rewarmed to 37 ℃ (group H, n = 5). The total MCL duration was 4 h, and the flow rate was maintained at 1 L/min, except during HCA. Blood samples collected 15 min after the beginning and end of MCL were subjected to standard laboratory tests and rotational thromboelastometry analyses. Hypothermia had no impact on coagulation in both the hypothermic storage and MCL studies. MCL significantly decreased the platelet counts and clot elasticity in the INTEM and EXTEM assays; however, there was no effect on fibrinogen contribution measured by FIBTEM. Hypothermia does not cause irreversible coagulopathy in vitro; however, MCL decreases coagulation due to the deterioration of platelets.
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Affiliation(s)
- Hayato Ise
- Department of Cardiac Surgery, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan.,Department of Cardiovascular Surgery, Heinrich Heine University, Düsseldorf, Germany
| | - Kyohei Oyama
- Department of Cardiac Surgery, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan.
| | - Shingo Kunioka
- Department of Cardiac Surgery, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan
| | - Tomonori Shirasaka
- Department of Cardiac Surgery, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan
| | - Hirotsugu Kanda
- Department of Anesthesiology and Critical Care Medicine, Asahikawa Medical University, Asahikawa, Japan
| | - Payam Akhyari
- Department of Cardiovascular Surgery, Heinrich Heine University, Düsseldorf, Germany
| | - Hiroyuki Kamiya
- Department of Cardiac Surgery, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan
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Seguchi R, Kiuchi R, Horikawa T, Tarui T, Sanada J, Ohtake H, Watanabe G. Novel Brain Protection Method for Zone 0 Endovascular Aortic Repair with Selective Cerebral Perfusion. Ann Vasc Dis 2021; 14:153-158. [PMID: 34239641 PMCID: PMC8241544 DOI: 10.3400/avd.oa.21-00025] [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: 03/01/2021] [Accepted: 04/15/2021] [Indexed: 11/19/2022] Open
Abstract
Objective: Zone 0 thoracic endovascular aortic repair (TEVAR) is associated with a high incidence of cerebral infarction mostly due to the embolic shower of a plaque from the aortic arch when the stent graft brushes against the aortic wall. Thus, it is important to develop a method for protecting the brain from such embolism. We report the outcomes of Zone 0 TEVAR with a novel brain protection method using selective cerebral perfusion under extracorporeal membrane oxygenation (ECMO). Materials and Methods: Two T-shaped grafts with ringed expanded polytetrafluoroethylene (ePTFE) were created using an 8-mm-ringed ePTFE anastomosed end-to-side with a 7-mm-ringed ePTFE. Carotid–carotid bypass and axillo-axillary bypass were established using these grafts. ECMO was connected to the grafts and the femoral vein. Bilateral carotid and axillary arteries were blocked, and cerebral perfusion was selectively maintained using ECMO. Total endovascular Zone 0 TEVAR was performed. The patency of brachiocephalic artery was maintained using the chimney or in situ fenestration technique. Results: Since August 2016, seven patients with aortic arch aneurysms underwent the procedure. The mortality rate was 0%. No neurological complications developed. Conclusion: This brain protection method using selective cerebral perfusion under ECMO is a safe method for Zone 0 TEVAR.
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Affiliation(s)
- Ryuta Seguchi
- Department of Cardiovascular Surgery, NewHeart Watanabe Institute, Tokyo, Japan
| | - Ryuta Kiuchi
- Department of Cardiovascular Surgery, NewHeart Watanabe Institute, Tokyo, Japan
| | - Takafumi Horikawa
- Department of Cardiovascular Surgery, NewHeart Watanabe Institute, Tokyo, Japan
| | - Tatsuya Tarui
- Department of Cardiovascular Surgery, NewHeart Watanabe Institute, Tokyo, Japan
| | - Junichiro Sanada
- Department of Vascular Surgery, Ageo Central General Hospital, Ageo, Saitama, Japan
| | - Hiroshi Ohtake
- Department of Vascular Surgery, Ageo Central General Hospital, Ageo, Saitama, Japan
| | - Go Watanabe
- Department of Cardiovascular Surgery, NewHeart Watanabe Institute, Tokyo, Japan
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Tian DH, Weller J, Hasmat S, Preventza O, Forrest P, Kiat H, Yan TD. Temperature Selection in Antegrade Cerebral Perfusion for Aortic Arch Surgery: A Meta-Analysis. Ann Thorac Surg 2019; 108:283-291. [PMID: 30682350 DOI: 10.1016/j.athoracsur.2018.12.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Revised: 11/11/2018] [Accepted: 12/10/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND The increasing use of antegrade cerebral perfusion (ACP) during aortic arch surgery has corresponded with a trend toward warmer target temperatures for hypothermic circulatory arrest. This meta-analysis examined the clinical outcomes using colder or warmer circulatory arrest targets with ACP. METHODS Electronic searches were performed using four databases from their inception to February 2017. Comparative studies of adult patients who underwent aortic arch operations using ACP at different circulatory arrest temperatures were included. Data were extracted by 2 independent researchers and analyzed according to predefined end points using a random-effects model. RESULTS The literature search identified 18 comparative studies, with 1,215 patients in the "cold" cohort and 1,417 in the "warm" cohort. Mean hypothermic circulatory arrest temperatures were 20.3°C and 26.5°C in the cold and warm groups, respectively. A trend existed for increased permanent neurologic deficit overall when colder targets were used (odds ratio, 1.45; 95% confidence interval, 0.98 to 2.13; p = 0.06); this became significant when adjusted estimates were aggregated (odds ratio, 1.65; 95% confidence interval, 1.06 to 2.55; p = 0.03). No difference in the mortality rate was seen when adjusted effects were aggregated. Temporary neurologic deficit, postoperative dialysis, ventilator time, and intensive care unit stay were significantly reduced in the warm cohort overall. No significant differences in reexploration for bleeding were found. CONCLUSIONS ACP with warmer circulatory arrest temperatures may reduce the incidence of permanent neurologic deficit as well as potentially other clinical outcomes. Further studies are required to determine the safe circulatory arrest durations for visceral organs at warmer temperatures.
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Affiliation(s)
- David H Tian
- Collaborative Research (CORE) Group, Macquarie University, Sydney, New South Wales, Australia; Department of Cardiothoracic Surgery, Royal North Shore Hospital, Sydney, New South Wales, Australia.
| | - Justin Weller
- Collaborative Research (CORE) Group, Macquarie University, Sydney, New South Wales, Australia
| | - Shaheen Hasmat
- Collaborative Research (CORE) Group, Macquarie University, Sydney, New South Wales, Australia
| | - Ourania Preventza
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas; Department of Cardiovascular Surgery, Texas Heart Institute, Houston, Texas
| | - Paul Forrest
- Department of Anaesthesia, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - Hosen Kiat
- Faculty of Medicine and Health Sciences, Macquarie University, Sydney, New South Wales, Australia; Faculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia
| | - Tristan D Yan
- Collaborative Research (CORE) Group, Macquarie University, Sydney, New South Wales, Australia; Department of Cardiothoracic Surgery, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
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Settepani F, Cappai A, Basciu A, Barbone A, Tarelli G. Outcome of open total arch replacement in the modern era. J Vasc Surg 2016; 63:537-45. [DOI: 10.1016/j.jvs.2015.10.061] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 10/05/2015] [Indexed: 11/24/2022]
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Right axillary and femoral artery perfusion with mild hypothermia for aortic arch replacement. J Cardiothorac Surg 2014; 9:94. [PMID: 24885031 PMCID: PMC4068358 DOI: 10.1186/1749-8090-9-94] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2013] [Accepted: 05/06/2014] [Indexed: 12/03/2022] Open
Abstract
Objectives Aortic arch replacement is associated with increased mortality and morbidity especially in acute type-A aortic dissection. Although hypothermic circulatory arrest with selective antegrade cerebral perfusion has been widely used because of its excellent cerebral protection, its optimal perfusion characteristics are unknown. The present study investigates clinical results obtained after perfusion method modification and temperature management during cardiopulmonary bypass (CPB). Methods Between July 2010 and August 2012, 16 consecutive adult patients (mean age 50.0 yr ± 14.1 yr, range 25 yr to 73 yr, 12 males, 4 females) who presented with acute Stanford type-A aortic dissection underwent aortic arch replacement (total arch, n = 11; hemiarch, n = 5) under mild hypothermia (31.1°C ± 1.5°C) with right axillary and femoral artery perfusion. Results The mean CPB time was 201 min ± 53 min, and the mean myocardial ischemic time was 140 min ± 42 min. The mean selective cerebral perfusion time was 80 min ± 16 min, and the mean lower-body circulatory arrest time was 20 min ± 13 min. No patient death occurred within 30 post-operative days. The following details were observed: new post-operative permanent neurologic deficit in 1 patient (6.3%), temporary neurologic deficit in 2 patients (12.5%), acute renal dysfunction (creatinine level > 230 umol/L) in 3 patients (18.8%) and mechanical ventilation > 72 h in 5 patients (31.2%). Conclusions Aortic arch replacement for acute type-A aortic dissection under mild hypothermia with right axillary and femoral artery perfusion could be safely performed in the patient cohort.
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Saad H, Aladawy M. Temperature management in cardiac surgery. Glob Cardiol Sci Pract 2013; 2013:44-62. [PMID: 24689001 PMCID: PMC3963732 DOI: 10.5339/gcsp.2013.7] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Accepted: 03/06/2013] [Indexed: 01/06/2023] Open
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Davies RA, Black D, Bannon PG, Bayfield MS, Hendel PN, Hughes CF, Wilson MK, Vallely MP. Outcomes of aortic arch replacement surgery after previous cardiac surgery. ANZ J Surg 2013; 83:827-32. [PMID: 23782742 DOI: 10.1111/ans.12299] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/19/2013] [Indexed: 11/30/2022]
Abstract
BACKGROUND Aortic arch replacement is a potentially high-risk operation and in the re-operative setting has been found to be a risk factor for poor outcome, yet there is a dearth of published data specifically on this topic. The aim of the study was to review our unit's outcomes in this re-operative setting. METHOD Data were collated for all patients who underwent aortic arch replacement surgery after previous cardiac surgery from January 1988 to November 2011. The patients were divided based primarily on elective versus non-elective and also early (≤2005) and late (≥2006) series. RESULTS Twenty-seven eligible patients (22 male; median age: 53.0 years; elective: 14, non-elective: 13) were identified. There was a mean period of 14.5 years between the first operation and the subsequent aortic arch replacement. The overall 30-day mortality rate was 22.2% - 0% elective and 46.2% non-elective (P = 0.004). Overall permanent neurological dysfunction was 21.7% - 28.6% elective and 11.1% non-elective (P = 0.463). There were 11 early-series patients and 16 late-series patients. For early-series patients, 90.9% were non-elective versus 18.8% in the late-series patients. The 30-day mortality rate was 54.5% early series versus 0% late series. CONCLUSION Aortic arch replacement is high risk in the re-operative setting. These risks are even greater for non-elective procedures. This highlights the need for aggressive first-time surgery to reduce re-operative procedures and good long-term follow-up programmes to allow elective procedures if required.
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Affiliation(s)
- Reece A Davies
- Faculty of Medicine, The University of Sydney, Sydney, New South Wales, Australia; The Baird Institute for Heart and Lung Surgical Research, Sydney, New South Wales, Australia
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