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Cao J, Yu M, Xiao Y, Dong R, Wang J. Effects of different surgical strategies and left ventricular remodelling on the outcomes of coronary artery bypass grafting in heart failure patients with reduced ejection fraction. Front Cardiovasc Med 2024; 11:1398700. [PMID: 38895539 PMCID: PMC11183324 DOI: 10.3389/fcvm.2024.1398700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024] Open
Abstract
Background Ischaemic heart failure with reduced ejection fraction (HFrEF) caused by coronary artery disease accounts for the largest proportion of heart failure cases with the worst prognosis. Coronary artery bypass grafting (CABG) is the most effective treatment for ischaemic HFrEF. On-pump and off-pump are the two surgical methods used for CABG. Whether patients with HFrEF should undergo on- or off-pump CABG is controversial in coronary heart disease surgery. The left ventricular end-systolic volume index (LVSEVI) is the gold standard for evaluating the severity of left ventricular remodelling; however, its effect on the perioperative risk and long-term survival rate of patients with HFrEF undergoing CABG remains unclear. Methods This single centre prospective cohort analysis included 118 coronary heart disease patients with symptoms and signs of heart failure and a left ventricular ejection fraction (LVEF) of <40% who were enrolled consecutively from January 2019 to December 2023. Operative mortality, perioperative complications, and long-term survival were compared among patients treated with various LVESVIs and surgical methods. The primary outcomes were cardiac death, myocardial infarction, heart failure, stroke, and revascularization, (percutaneous coronary intervention or redo CABG) with a median follow-up of 38 ± 10 months. Results The 30-day postoperative mortality of 118 patients was 6.8%. Patients in the off-pump group had significantly higher perioperative mortality than those in the on-pump group (12.5% vs. 3.8%, p = 0.03). In the off-pump group, a higher proportion of patients required perioperative mechanical assistance, such as intra-aortic artery balloon pump (IABP) or extracorporeal membrane oxygenation (ECMO), compared to those in the on-pump group (IABP: 75% vs. 47.4%, p = 0.004; ECMO: 22.5% vs. 1.3%, p = 0.000). Patients in the off-pump group were more likely to have postoperative atrial fibrillation (AF) (35% vs. 14.1%, p = 0.01). In the on-pump group, the incidence of postoperative AF (25% vs. 6.5%, p = 0.02) and IABP use (62.5% vs. 36.9%, p = 0.03) were significantly higher in patients with more severe left ventricular remodelling than in those with less severe left ventricular remodelling. In the off-pump group, patients with more severe left ventricular remodelling had higher ECMO usage (38.9% vs. 9.1%, p = 0.04), incidence of postoperative AF (61.1% vs. 13.6%, p = 0.02), and perioperative mortality (22.2%). Major adverse cardiac event (MACE)-free survival rate was significantly higher in the on-pump group than in the off-pump group, and there was no significant difference in MACE free survival rates between the two groups of patients with different degrees of left ventricular remodelling. Conclusion On-pump bypass is a better surgical procedure for patients with ischaemic HFrEF, especially those with severe left ventricular remodelling. Left ventricular remodelling increases perioperative mortality but has no effect on long-term survival.
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Affiliation(s)
| | | | | | | | - Jiayang Wang
- Department of Cardiac Surgery, Beijing Institute of Heart, Lung and Blood Vessel Diseases- Beijing Anzhen Hospital, Affiliated of Capital Medical University, Beijing, China
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Misumi Y, Kainuma S, Toda K, Miyagawa S, Yoshioka D, Hirayama A, Kitamura T, Komukai S, Sawa Y. Restrictive annuloplasty on remodeling and survival in patients with end-stage ischemic cardiomyopathy. J Thorac Cardiovasc Surg 2024; 167:1008-1019.e2. [PMID: 35811142 DOI: 10.1016/j.jtcvs.2022.04.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 04/22/2022] [Accepted: 04/28/2022] [Indexed: 11/19/2022]
Abstract
OBJECTIVES To elucidate the influence of concomitant restrictive mitral annuloplasty (RMA) on postoperative left ventricular (LV) reverse remodeling and survival in patients with ischemic cardiomyopathy undergoing coronary artery bypass grafting (CABG). METHODS This study comprised 157 patients with ischemic cardiomyopathy (LV ejection fraction ≤40%) who underwent CABG and completed echocardiographic examination at 1 year after surgery, with 84 (54%) undergoing concomitant RMA for clinically relevant ischemic mitral regurgitation. The primary end point was postoperative reduction in LV end-systolic volume index (LVESVI). The secondary end point was overall survival. Median follow-up was 5.1 years. RESULTS At baseline, patients who underwent CABG with RMA had a larger LVESVI (83 ± 23 vs 75 ± 24 mm; P = .046). One-year postoperatively, CABG with RMA reduced the LVESVI more than did CABG alone (37% vs 21% from baseline; P < .001), yielding nearly identical postoperative LVESVI (53 ± 27 vs 61 ± 26 mm; P = .065). In multivariable logistic regression analysis, concomitant RMA was associated with significant LV reverse remodeling (odds ratio, 2.79; 95% CI, 1.34-5.78; P = .006). The prevalence in moderate or severe mitral regurgitation was not different between the groups (7% vs 10%; P = .58). Survival rates were similar between the groups (5 years, 78% vs 83%; P = .35). CONCLUSIONS In patients with ischemic cardiomyopathy undergoing CABG, concomitant RMA was associated with significant reduction in LVESVI. The influence of LV reverse remodeling on survival remains undetermined.
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Affiliation(s)
- Yusuke Misumi
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Satoshi Kainuma
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Koichi Toda
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Daisuke Yoshioka
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Atsushi Hirayama
- Department of Social and Environmental Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Tetsuhisa Kitamura
- Department of Social and Environmental Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Sho Komukai
- Department of Biomedical Statistics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yoshiki Sawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan.
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Kang HU, Nam JS, Kim JH, Chin JH, Choi IC. Incremental Prognostic Value of Left Ventricular Longitudinal Strain Over Ejection Fraction in Coronary Artery Bypass Grafting. J Cardiothorac Vasc Anesth 2022; 36:4305-4312. [PMID: 36155715 DOI: 10.1053/j.jvca.2022.08.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 08/08/2022] [Accepted: 08/12/2022] [Indexed: 11/11/2022]
Abstract
OBJECTIVES To evaluate the incremental prognostic value of longitudinal strain over left ventricular ejection fraction (LVEF) after coronary artery bypass grafting (CABG). DESIGN Retrospective cohort study. SETTING Single tertiary-care center. PARTICIPANTS Patients underwent isolated CABG between January 2014 and December 2019. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS There were 999 patients (median age, 65 years, 23.5% female) categorized into 3 groups according to their left ventricular (LV) systolic function status: pEF/pS (preserved LVEF and preserved longitudinal strain, n = 490), pEF/iS (preserved LVEF and impaired longitudinal strain, n = 186), and rEF (reduced LVEF, n = 323). During a median follow-up of 2.7 years, 86 (8.6%) patients had died. The 5-year survival significantly differed in patients with preserved LVEF according to the strain status (pEF/pS v pEF/iS, 90.0% v 84.6%; p = 0.002). After adjusting for potential confounders, the pEF/iS group (adjusted hazard ratio [HR], 2.17; 95% CI, 1.10-4.28; p = 0.03) and the rEF group (adjusted HR, 2.96; 95% CI, 1.46-6.00; p = 0.003) had significantly higher risks for all-cause death compared with the pEF/pS group. The addition of longitudinal strain to LVEF in the prediction model significantly improved its performance (global chi-squared, 105.2 v 110.2; p = 0.03). CONCLUSIONS Left ventricular longitudinal strain could differentiate the prognosis after CABG in patients with preserved LVEF and provide significant incremental prognostic value to LVEF.
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Affiliation(s)
- Hyun-Uk Kang
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jae-Sik Nam
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
| | - Ji-Hyeon Kim
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Ji-Hyun Chin
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - In-Cheol Choi
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Kuehn C, Ruemke S, Rellecke P, Lichtenberg A, Joskowiak D, Hagl C, Hassan M, Leyh RG, Erler S, Garbade J, Eifert S, Grieshaber P, Boening A, Doenst T, Velichkov I, Madej T, Knaut M, Hain A, Burger H. Wearable cardioverter defibrillator multicentre experience in a large cardiac surgery cohort at transient risk of sudden cardiac death. Eur J Cardiothorac Surg 2022; 61:1031-1040. [PMID: 35174386 PMCID: PMC9070494 DOI: 10.1093/ejcts/ezac086] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 11/24/2021] [Accepted: 02/08/2022] [Indexed: 11/14/2022] Open
Affiliation(s)
- Christian Kuehn
- Department of Cardiac-,Thoracic-, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Stefan Ruemke
- Department of Cardiac-,Thoracic-, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Philipp Rellecke
- Department for Cardiac Surgery, Heinrich-Heine-University, Duesseldorf, Germany
| | - Artur Lichtenberg
- Department for Cardiac Surgery, Heinrich-Heine-University, Duesseldorf, Germany
| | - Dominik Joskowiak
- Department of Cardiac Surgery, University Hospital, LMU Munich, Munich, Germany
| | - Christian Hagl
- Department of Cardiac Surgery, University Hospital, LMU Munich, Munich, Germany
| | - Mohamed Hassan
- Department of Cardiovascular Surgery, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Rainer G Leyh
- Department of Cardiovascular Surgery, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Stefan Erler
- Department for Cardiothoracic Surgery, Heart & Vessel Center Bad Bevensen, Bad Bevensen, Germany
| | - Jens Garbade
- Department for Cardiothoracic Surgery, Klinikum Links der Weser, Bremen, Germany
| | - Sandra Eifert
- Department of Cardiac Surgery, University Hospital Leipzig, Heart Center Leipzig, Leipzig, Germany
| | - Philippe Grieshaber
- Department of Adult and Pediatric Cardiovascular Surgery, Giessen University Hospital, Giessen, Germany
| | - Andreas Boening
- Department of Adult and Pediatric Cardiovascular Surgery, Giessen University Hospital, Giessen, Germany
| | - Torsten Doenst
- Department of Cardiothoracic Surgery, Jena University Hospital, Friedrich Schiller University of Jena, Jena, Germany
| | - Ilia Velichkov
- Department of Cardiothoracic Surgery, Jena University Hospital, Friedrich Schiller University of Jena, Jena, Germany
| | - Tomas Madej
- Department of Cardiac Surgery, Dresden Heart Centre, Carl Gustav Carus University of Dresden, Dresden, Germany
| | - Michael Knaut
- Department of Cardiac Surgery, Dresden Heart Centre, Carl Gustav Carus University of Dresden, Dresden, Germany
| | - Andreas Hain
- Department of Cardiology, Kerckhoff-Clinic Bad Nauheim, Bad Nauheim, Germany
| | - Heiko Burger
- Department of Cardiovascular Surgery, Kerckhoff-Clinic Bad Nauheim, Bad Nauheim, Germany
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Gaudino M, Hameed I, Khan FM, Tam DY, Rahouma M, Yongle R, Naik A, Di Franco A, Demetres M, Petrie MC, Jolicoeur EM, Girardi LN, Fremes SE. Treatment strategies in ischaemic left ventricular dysfunction: a network meta-analysis. Eur J Cardiothorac Surg 2020; 59:ezaa319. [PMID: 33085752 DOI: 10.1093/ejcts/ezaa319] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 07/07/2020] [Accepted: 07/29/2020] [Indexed: 02/24/2024] Open
Abstract
OBJECTIVES The optimal revascularization strategy for patients with ischaemic left ventricular systolic dysfunction (iLVSD) remains controversial. We aimed to compare percutaneous coronary intervention (PCI), coronary artery bypass grafting (CABG) and medical therapy (MT) in a network meta-analysis. METHODS All randomized controlled trials and observational studies comparing any combination of PCI, CABG and MT in patients with iLVSD were analysed in a frequentist network meta-analysis (generic inverse variance method). Primary outcome was mortality at longest available follow-up. Secondary outcomes were cardiac death, stroke, myocardial infarction (MI) and repeat revascularization (RR). RESULTS Twenty-three studies were included (n = 23 633; 4 randomized controlled trials). Compared to CABG, PCI was associated with higher mortality [incidence rate ratio (IRR) 1.32, 95% confidence interval (CI) 1.13-1.53], cardiac death (IRR 1.65, 95% CI 1.18-2.33), MI (IRR 2.18, 95% CI 1.70-2.80) and RR (IRR 3.75, 95% CI 2.89-4.85). Compared to CABG, MT was associated with higher mortality (IRR 1.52, 95% CI 1.26-1.84), cardiac death (IRR 3.83, 95% CI 2.12-6.91), MI (IRR 3.22, 95% CI 1.52-6.79) and RR (IRR 3.37, 95% CI 1.67-6.79). Compared to MT, PCI was associated with lower cardiac death (IRR 0.43, 95% CI 0.24-0.78). CABG ranked as the best revascularization strategy for mortality, cardiac death, MI and RR; MT ranked as the strategy associated with the lowest incidence of stroke. Left ventricular ejection fraction, year of study, use of drug-eluting stents did not affect relative treatment effects. CONCLUSIONS CABG appears to be the best therapy for iLVSD, although mainly based on observational data. Definitive randomized controlled trials comparing CABG and PCI in iLVSD are required. PROSPERO REGISTRATION ID 132414.
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Affiliation(s)
- Mario Gaudino
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, NY, USA
| | - Irbaz Hameed
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, NY, USA
| | - Faiza M Khan
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, NY, USA
| | - Derrick Y Tam
- Schulich Heart Centre, Sunnybrook Health Science University of Toronto, Toronto, ON, Canada
| | - Mohamed Rahouma
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, NY, USA
| | - Ruan Yongle
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, NY, USA
| | - Ajita Naik
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, NY, USA
| | - Antonino Di Franco
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, NY, USA
| | - Michelle Demetres
- Samuel J. Wood Library and C.V. Starr Biomedical Information Centre, Weill Cornell Medicine, New York, NY, USA
| | - Mark C Petrie
- Institute of Cardiovascular and Medical Sciences, British Heart Foundation Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, UK
| | | | - Leonard N Girardi
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, NY, USA
| | - Stephen E Fremes
- Schulich Heart Centre, Sunnybrook Health Science University of Toronto, Toronto, ON, Canada
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High-mobility group box 1 fragment suppresses adverse post-infarction remodeling by recruiting PDGFRα-positive bone marrow cells. PLoS One 2020; 15:e0230392. [PMID: 32275672 PMCID: PMC7147742 DOI: 10.1371/journal.pone.0230392] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 02/28/2020] [Indexed: 02/04/2023] Open
Abstract
OBJECTIVES High-mobility group box 1 protein (HMGB1) fragment enhances bone marrow-derived mesenchymal stem cell (BM-MSC) recruitment to damaged tissue to promote tissue regeneration. This study aimed to evaluate whether systemic injection of HMGB1 fragment could promote tissue repair in a rat model of myocardial infarction (MI). METHODS HMGB1 (n = 14) or phosphate buffered saline (n = 12, control) was administered to MI rats for 4 days. Cardiac performance and left ventricular remodeling were evaluated using ultrasonography and immunostaining. BM-MSC recruitment to damaged tissue in green fluorescent protein-bone marrow transplantation (GFP-BMT) models was evaluated using immunostaining. RESULTS At four weeks post-treatment, the left ventricular ejection fraction was significantly improved in the HMGB1 group compared to that in the control. Interstitial fibrosis and cardiomyocyte hypertrophy were also significantly attenuated in the HMGB1 group compared to the control. In the peri-infarction area, VEGF-A mRNA expression was significantly higher and TGFβ expression was significantly attenuated in the HMGB1 group than in the control. In GFP-BMT rats, GFP+/PDGFRα+ cells were significantly mobilized to the peri-infarction area in the HMGB1 group compared to that in the control, leading to the formation of new vasculature. In addition, intravital imaging revealed that more GFP+/PDGFRα+ cells were recruited to the peri-infarction area in the HMGB1 group than in the control 12 h after treatment. CONCLUSIONS Systemic administration of HMGB1 induced angiogenesis and reduced fibrosis by recruiting PDGFRα+ mesenchymal cells from the bone marrow, suggesting that HMGB1 administration might be a new therapeutic approach for heart failure after MI.
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Bilen Ç, Akkaya G, Gençpınar T, Metin SK. Preoperatif hiponatreminin sol ventrikül ejeksiyon fraksiyonu üzerine etkileri ve klinik sonuçlarla ilişkisi. EGE TIP DERGISI 2019. [DOI: 10.19161/etd.607596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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The Current Role of Viability Imaging to Guide Revascularization and Therapy Decisions in Patients With Heart Failure and Reduced Left Ventricular Function. Can J Cardiol 2019; 35:1015-1029. [DOI: 10.1016/j.cjca.2019.04.029] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 04/25/2019] [Accepted: 04/28/2019] [Indexed: 12/20/2022] Open
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Chowdhury MA, Cook JM, Moukarbel GV, Ashtiani S, Schwann TA, Bonnell MR, Cooper CJ, Khouri SJ. Pre-operative right ventricular echocardiographic parameters associated with short-term outcomes and long-term mortality after CABG. Echo Res Pract 2018; 5:155-166. [PMID: 30533002 PMCID: PMC6301308 DOI: 10.1530/erp-18-0041] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 11/19/2018] [Indexed: 12/24/2022] Open
Abstract
Background This analysis aims to assess the prognostic value of pre-operative right ventricular echocardiographic parameters in predicting short-term adverse outcomes and long-term mortality after coronary artery bypass graft (CABG). Methods Study design: Observational retrospective cohort. Pre-operative echocardiographic data, perioperative adverse outcomes (POAO) and long-term mortality were retrospectively analyzed in 491 patients who underwent isolated CABG at a single academic center between 2006 and 2014. Results Average age of enrolled subjects was 66 ± 11.5 years with majority being male (69%). 227/491 patients had 30 days POAO (46%); most common being post-operative atrial fibrillation (27.3%) followed by prolonged ventilation duration (12.7%). On multivariate analysis, left atrial volume index ≥42 mL/m2 (LAVI) (OR (95% CI): 1.98 (1.03-3.82), P = 0.04), mitral E/A >2 (1.97 (1.02-3.78), P = 0.04), right atrial size >18 cm2 (1.86 (1.14-3.05), P = 0.01), tricuspid annular plane systolic excursion (TAPSE) <16 mm (1.8 (1.03-3.17), P = 0.04), right ventricular systolic pressure (RVSP) ≥36 mmHg (pulmonary hypertension) (1.6 (1.03-2.38), P = 0.04) and right ventricle myocardial performance index (RVMPI) >0.55 (1.58 (1.01-2.46), P = 0.04) were found to be associated with increased 30-day POAO. On 3.5-year follow-up, cumulative survival was decreased in patients with myocardial performance index (MPI) ≥0.55 (log rank: 4.5, P = 0.034) and in patients with mitral valve E/e' ≥14 (log rank: 4.9, P = 0.026). Conclusion Pre-operative right ventricle dysfunction (RVD) is associated with increased perioperative complications. Furthermore, pre-operative RVD and increased left atrial pressures are associated with long-term mortality post CABG.
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Affiliation(s)
| | - Jered M Cook
- Division of Cardiovascular Medicine, University of Toledo Medical Center, Toledo, Ohio, USA
| | - George V Moukarbel
- Division of Cardiovascular Medicine, University of Toledo Medical Center, Toledo, Ohio, USA
| | - Sana Ashtiani
- University of Toledo Medical Center, Toledo, Ohio, USA
| | - Thomas A Schwann
- Division of Cardiothoracic Surgery, University of Toledo Medical Center, Toledo, Ohio, USA
| | - Mark R Bonnell
- Division of Cardiothoracic Surgery, University of Toledo Medical Center, Toledo, Ohio, USA
| | - Christopher J Cooper
- Division of Cardiovascular Medicine, University of Toledo Medical Center, Toledo, Ohio, USA
| | - Samer J Khouri
- Division of Cardiovascular Medicine, University of Toledo Medical Center, Toledo, Ohio, USA
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Iribarne A, DiScipio AW, Leavitt BJ, Baribeau YR, McCullough JN, Weldner PW, Huang YL, Robich MP, Clough RA, Sardella GL, Olmstead EM, Malenka DJ. Comparative effectiveness of coronary artery bypass grafting versus percutaneous coronary intervention in a real-world Surgical Treatment for Ischemic Heart Failure trial population. J Thorac Cardiovasc Surg 2018; 156:1410-1421.e2. [DOI: 10.1016/j.jtcvs.2018.04.121] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 03/27/2018] [Accepted: 04/02/2018] [Indexed: 02/06/2023]
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Multiple coronary stenting negatively affects myocardial recovery after coronary bypass grafting. Gen Thorac Cardiovasc Surg 2018; 66:446-455. [DOI: 10.1007/s11748-018-0937-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 05/06/2018] [Indexed: 11/26/2022]
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Ji Q, Xia LM, Shi YQ, Ma RH, Shen JQ, Ding WJ, Wang CS. Impact of severe left ventricular dysfunction on in-hospital and mid-term outcomes of Chinese patients undergoing first isolated off-pump coronary artery bypass grafting. J Cardiothorac Surg 2017; 12:87. [PMID: 29017569 PMCID: PMC5635480 DOI: 10.1186/s13019-017-0651-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Accepted: 10/05/2017] [Indexed: 12/29/2022] Open
Abstract
Background Few studies focused on evaluating the impacts of preoperative severe left ventricular dysfunction on clinical outcomes of patients undergoing off-pump coronary artery bypass grafting surgery (OPCAB). This single center retrospective study aimed to evaluate the impacts of severe left ventricular dysfunction on in-hospital and mid-term clinical outcomes of Chinese patients undergoing first, scheduled, and isolated OPCAB surgery. Methods From January 2010 to December 2014, 2032 eligible patients were included in this study and were divided into 3 groups: a severe group (patients with preoperative left ventricular ejection fraction (LVEF) of ≤35%, n = 128), an impaired group (patients with preoperative LVEF of 36-50%, n = 680), and a normal group (patients with preoperative LVEF of >50%, n = 1224). In-hospital and follow-up clinical outcomes were investigated and compared. Results Patients in the severe group compared to the other 2 groups had higher in-hospital mortality and higher incidences of low cardiac output and prolonged ventilation. Kaplan-Meier curves showed a similar cumulative follow-up survival between the severe group and the impaired group (χ2 = 1.980, Log-rank p = 0.159) and between the severe group and the normal group (χ2 = 2.701, Log-rank p = 0.102). Multivariate Cox regression indicated that grouping was not a significant variable related to mid-term all-cause mortality. No significant difference was found in the rate of repeat revascularization between the severe group (2.4%) and the other 2 groups. Conclusions Patients with preoperative LVEF of ≤35% compared to preoperative LVEF of >35% increased the risk of in-hospital death and incidences of postoperative low cardiac output and prolonged ventilation, but shared similar mid-term all-cause mortality and repeat revascularization after OPCAB surgery.
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Affiliation(s)
- Qiang Ji
- Department of Cardiovascular Surgery of Zhongshan Hospital Fudan University, Shanghai, 180 Fenglin Rd, Shanghai, 200032, People's Republic of China
| | - Li Min Xia
- Shanghai Institute of Cardiovascular Disease, 1609 Xietu Road, Shanghai, 200032, People's Republic of China
| | - Yun Qing Shi
- Shanghai Institute of Cardiovascular Disease, 1609 Xietu Road, Shanghai, 200032, People's Republic of China
| | - Run Hua Ma
- Department of Cardiovascular Surgery of Zhongshan Hospital Fudan University, Shanghai, 180 Fenglin Rd, Shanghai, 200032, People's Republic of China
| | - Jin Qiang Shen
- Department of Cardiovascular Surgery of Zhongshan Hospital Fudan University, Shanghai, 180 Fenglin Rd, Shanghai, 200032, People's Republic of China
| | - Wen Jun Ding
- Department of Cardiovascular Surgery of Zhongshan Hospital Fudan University, Shanghai, 180 Fenglin Rd, Shanghai, 200032, People's Republic of China
| | - Chun Sheng Wang
- Shanghai Institute of Cardiovascular Disease, 1609 Xietu Road, Shanghai, 200032, People's Republic of China.
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Popovic B, Maureira P, Juilliere Y, Danchin N, Voilliot D, Vanhuyse F, Villemot JP. Bilateral vs unilateral internal mammary revascularization in patients with left ventricular dysfunction. World J Cardiol 2017; 9:339-346. [PMID: 28515852 PMCID: PMC5411968 DOI: 10.4330/wjc.v9.i4.339] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 12/29/2016] [Accepted: 01/18/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate the survival benefit of bilateral internal mammary artery (BIMA) grafts in patients with left ventricular dysfunction.
METHODS Between 1996 and 2009, we performed elective, isolated, primary, multiple cardiac arterial bypass grafting in 430 consecutive patients with left ventricular ejection fraction ≤ 40%. The early and long-term results were compared between 167 patients undergoing BIMA grafting and 263 patients using left internal mammary artery (LIMA)-saphenous venous grafting (SVG).
RESULTS The mean age of the overall population was 60.1 ± 15 years. In-hospital mortality was not different between the two groups (7.8% vs 10.3%, P = 0.49). Early postoperative morbidity included myocardial infarction (4.2% vs 3.8%, P = 0.80), stroke (1.2% vs 3.8%, P = 0.14), and mediastinitis (5.3% vs 2.3%, P = 0.11). At 8-year follow-up, Kaplan-Meier-estimated survival (74.2% vs 58.9%, P = 0.02) and Kaplan-Meier-estimated event-free survival (all cause deaths, myocardial infarction, stroke, target vessel revascularization, heart failure) (61.7% and 41.1%, P < 0.01) were significantly higher in the BIMA group compared with the LIMA-SVG group in univariate analysis. The propensity score matching analysis confirmed that BIMA grafting is a safe revascularization procedure but there was no long term survival (P = 0.40) and event-free survival (P = 0.13) in comparison with LIMA-SVG use.
CONCLUSION Our longitudinal analysis suggests that BIMA grafting can be performed with acceptable perioperative mortality in patients with left ventricular dysfunction.
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14
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High-risk cardiac surgery as an alternative to transplant or mechanical support in patients with end-stage heart failure. J Thorac Cardiovasc Surg 2017; 154:517-525. [PMID: 28495061 DOI: 10.1016/j.jtcvs.2017.03.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Revised: 01/31/2017] [Accepted: 03/04/2017] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Although the results of cardiac surgery in patients with poor left ventricular function have been widely published, the outcomes in patients with end-stage heart failure who meet criteria for advanced therapies are not well investigated. As access to transplantation and ventricular assist device therapy remains limited, we explored the possibility of conventional surgery as an alternative option for highly selected patients with end-stage heart failure. METHODS We identified patients with left ventricular ejection fraction <20% and VO2 max <14 mL/min/m2, who were initially referred for advanced therapies but were instead offered a conventional procedure from 2002 to 2012. We examined the short- and midterm outcomes and compared survival with that after our advanced therapies in the same era. RESULTS A total of 133 patients were identified; 68 were deemed to be transplant-eligible, whereas 65 were transplant-ineligible. Seventy-nine percent were in New York Heart Association class III/IV. In-hospital mortality was 12%. Actuarial survival at 5 and 10 years was 72% ± 4% and 39% ± 8%, respectively. Nonischemic etiology was identified as a predictor of late mortality. In the propensity-adjusted model, our transplant-eligible patients had comparable long-term survival to our transplantation patients (HR 1.48 [95% confidence interval, 0.66-3.2], P = .34), whereas the survival in our transplant-ineligible subset was comparable to the survival after our left ventricular assist device therapy (HR 0.49 [95% confidence interval, 0.16-1.50], P = .21). CONCLUSIONS Despite high perioperative risk, the midterm survival after conventional surgery in patients eligible for advanced therapies seems to be acceptable and may be an alternative option for highly selected patients with end-stage heart failure.
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15
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Han SS, Park S, Kang SH, Cho GY, Kim DK, Kim S, Chin HJ, Chae DW, Na KY. Usefulness of Preoperative Echocardiography to Predict Acute Kidney Injury and Long-Term Mortality After Coronary Artery Bypass Grafting. Am J Cardiol 2017; 119:231-236. [PMID: 27839773 DOI: 10.1016/j.amjcard.2016.09.054] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 09/19/2016] [Accepted: 09/19/2016] [Indexed: 11/17/2022]
Abstract
Acute kidney injury (AKI) is a common complication in patients undergoing coronary artery bypass grafting (CABG), which is associated with significant morbidity and mortality. This study identified echocardiographic predictors of AKI and determined whether these predictors were related to long-term mortality in CABG. This retrospective cohort study included 1,300 patients who underwent echocardiography before CABG at 2 tertiary referral centers from 2004 to 2010. The best echocardiographic predictor of AKI was determined using multivariate and stepwise selection methods. Patients were followed for 72 ± 28.8 months (maximum 11 years) for all-cause mortality. We measured the adjusted odds ratio and hazard ratio for AKI and all-cause mortality, respectively, according to the chosen parameter. E/e' was the best predictor of AKI among echocardiographic parameters. The high E/e' group (>15) exhibited a greater odds ratio for AKI (2.2 [1.51 to 3.27]) than the low E/e' group (<8). The high E/e' group required a longer hospital stay (16 days [12 to 23 days]) than the low E/e' group (14 days [11 to 17 days]). There were 272 deaths (21%) during follow-up. The high E/e' group exhibited a greater hazard ratio for long-term mortality (1.9 [1.34 to 2.76]) than the low E/e' group, and this difference remained statistically significant regardless of the occurrence of AKI and the size of the ejection fraction volume. E/e' in preoperative echocardiography is the best predictor of AKI and long-term mortality in patients undergoing CABG.
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Affiliation(s)
- Seung Seok Han
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Seokwoo Park
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Si-Hyuck Kang
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea; Department of Internal Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, Korea
| | - Goo-Yeong Cho
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea; Department of Internal Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, Korea
| | - Dong Ki Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Sejoong Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea; Department of Internal Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, Korea
| | - Ho Jun Chin
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea; Department of Internal Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, Korea
| | - Dong-Wan Chae
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea; Department of Internal Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, Korea
| | - Ki Young Na
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea; Department of Internal Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, Korea.
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16
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Wolff G, Dimitroulis D, Andreotti F, Kołodziejczak M, Jung C, Scicchitano P, Devito F, Zito A, Occhipinti M, Castiglioni B, Calveri G, Maisano F, Ciccone MM, De Servi S, Navarese EP. Survival Benefits of Invasive Versus Conservative Strategies in Heart Failure in Patients With Reduced Ejection Fraction and Coronary Artery Disease. Circ Heart Fail 2017; 10:CIRCHEARTFAILURE.116.003255. [PMID: 28087687 DOI: 10.1161/circheartfailure.116.003255] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Accepted: 12/05/2016] [Indexed: 01/06/2023]
Abstract
Background—
Heart failure with reduced ejection fraction caused by ischemic heart disease is associated with increased morbidity and mortality. It remains unclear whether revascularization by either coronary artery bypass grafting (CABG) or percutaneous coronary intervention (PCI) carries benefits or risks in this group of stable patients compared with medical treatment.
Methods and Results—
We performed a meta-analysis of available studies comparing different methods of revascularization (PCI or CABG) against each other or medical treatment in patients with coronary artery disease and left ventricular ejection fraction ≤40%. The primary outcome was all-cause mortality; myocardial infarction, revascularization, and stroke were also analyzed. Twenty-one studies involving a total of 16 191 patients were included. Compared with medical treatment, there was a significant mortality reduction with CABG (hazard ratio, 0.66; 95% confidence interval, 0.61–0.72;
P
<0.001) and PCI (hazard ratio, 0.73; 95% confidence interval, 0.62–0.85;
P
<0.001). When compared with PCI, CABG still showed a survival benefit (hazard ratio, 0.82; 95% confidence interval, 0.75–0.90;
P
<0.001).
Conclusions—
The present meta-analysis indicates that revascularization strategies are superior to medical treatment in improving survival in patients with ischemic heart disease and reduced ejection fraction. Between the 2 revascularization strategies, CABG seems more favorable compared with PCI in this particular clinical setting.
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Affiliation(s)
- Georg Wolff
- From the Systematic Investigation and Research on Interventions and Outcomes (SIRIO) MEDICINE Research Network, Milan, Italy (G.W., D.D., F.A., M.K., C.J., P.S., F.D., A.Z., M.O., M.M.C., S.D.S., E.P.N.); Department of Internal Medicine, Division of Cardiology, Pulmonology and Vascular Medicine, Heinrich-Heine-University, Düsseldorf, Germany (G.W., D.D., C.J.); Institute of Cardiology, Catholic University, Rome, Italy (F.A.); Collegium Medicum in Bydgoszcz, University of Nicolaus Copernicus, Toruń,
| | - Dimitrios Dimitroulis
- From the Systematic Investigation and Research on Interventions and Outcomes (SIRIO) MEDICINE Research Network, Milan, Italy (G.W., D.D., F.A., M.K., C.J., P.S., F.D., A.Z., M.O., M.M.C., S.D.S., E.P.N.); Department of Internal Medicine, Division of Cardiology, Pulmonology and Vascular Medicine, Heinrich-Heine-University, Düsseldorf, Germany (G.W., D.D., C.J.); Institute of Cardiology, Catholic University, Rome, Italy (F.A.); Collegium Medicum in Bydgoszcz, University of Nicolaus Copernicus, Toruń,
| | - Felicita Andreotti
- From the Systematic Investigation and Research on Interventions and Outcomes (SIRIO) MEDICINE Research Network, Milan, Italy (G.W., D.D., F.A., M.K., C.J., P.S., F.D., A.Z., M.O., M.M.C., S.D.S., E.P.N.); Department of Internal Medicine, Division of Cardiology, Pulmonology and Vascular Medicine, Heinrich-Heine-University, Düsseldorf, Germany (G.W., D.D., C.J.); Institute of Cardiology, Catholic University, Rome, Italy (F.A.); Collegium Medicum in Bydgoszcz, University of Nicolaus Copernicus, Toruń,
| | - Michalina Kołodziejczak
- From the Systematic Investigation and Research on Interventions and Outcomes (SIRIO) MEDICINE Research Network, Milan, Italy (G.W., D.D., F.A., M.K., C.J., P.S., F.D., A.Z., M.O., M.M.C., S.D.S., E.P.N.); Department of Internal Medicine, Division of Cardiology, Pulmonology and Vascular Medicine, Heinrich-Heine-University, Düsseldorf, Germany (G.W., D.D., C.J.); Institute of Cardiology, Catholic University, Rome, Italy (F.A.); Collegium Medicum in Bydgoszcz, University of Nicolaus Copernicus, Toruń,
| | - Christian Jung
- From the Systematic Investigation and Research on Interventions and Outcomes (SIRIO) MEDICINE Research Network, Milan, Italy (G.W., D.D., F.A., M.K., C.J., P.S., F.D., A.Z., M.O., M.M.C., S.D.S., E.P.N.); Department of Internal Medicine, Division of Cardiology, Pulmonology and Vascular Medicine, Heinrich-Heine-University, Düsseldorf, Germany (G.W., D.D., C.J.); Institute of Cardiology, Catholic University, Rome, Italy (F.A.); Collegium Medicum in Bydgoszcz, University of Nicolaus Copernicus, Toruń,
| | - Pietro Scicchitano
- From the Systematic Investigation and Research on Interventions and Outcomes (SIRIO) MEDICINE Research Network, Milan, Italy (G.W., D.D., F.A., M.K., C.J., P.S., F.D., A.Z., M.O., M.M.C., S.D.S., E.P.N.); Department of Internal Medicine, Division of Cardiology, Pulmonology and Vascular Medicine, Heinrich-Heine-University, Düsseldorf, Germany (G.W., D.D., C.J.); Institute of Cardiology, Catholic University, Rome, Italy (F.A.); Collegium Medicum in Bydgoszcz, University of Nicolaus Copernicus, Toruń,
| | - Fiorella Devito
- From the Systematic Investigation and Research on Interventions and Outcomes (SIRIO) MEDICINE Research Network, Milan, Italy (G.W., D.D., F.A., M.K., C.J., P.S., F.D., A.Z., M.O., M.M.C., S.D.S., E.P.N.); Department of Internal Medicine, Division of Cardiology, Pulmonology and Vascular Medicine, Heinrich-Heine-University, Düsseldorf, Germany (G.W., D.D., C.J.); Institute of Cardiology, Catholic University, Rome, Italy (F.A.); Collegium Medicum in Bydgoszcz, University of Nicolaus Copernicus, Toruń,
| | - Annapaola Zito
- From the Systematic Investigation and Research on Interventions and Outcomes (SIRIO) MEDICINE Research Network, Milan, Italy (G.W., D.D., F.A., M.K., C.J., P.S., F.D., A.Z., M.O., M.M.C., S.D.S., E.P.N.); Department of Internal Medicine, Division of Cardiology, Pulmonology and Vascular Medicine, Heinrich-Heine-University, Düsseldorf, Germany (G.W., D.D., C.J.); Institute of Cardiology, Catholic University, Rome, Italy (F.A.); Collegium Medicum in Bydgoszcz, University of Nicolaus Copernicus, Toruń,
| | - Michele Occhipinti
- From the Systematic Investigation and Research on Interventions and Outcomes (SIRIO) MEDICINE Research Network, Milan, Italy (G.W., D.D., F.A., M.K., C.J., P.S., F.D., A.Z., M.O., M.M.C., S.D.S., E.P.N.); Department of Internal Medicine, Division of Cardiology, Pulmonology and Vascular Medicine, Heinrich-Heine-University, Düsseldorf, Germany (G.W., D.D., C.J.); Institute of Cardiology, Catholic University, Rome, Italy (F.A.); Collegium Medicum in Bydgoszcz, University of Nicolaus Copernicus, Toruń,
| | - Battistina Castiglioni
- From the Systematic Investigation and Research on Interventions and Outcomes (SIRIO) MEDICINE Research Network, Milan, Italy (G.W., D.D., F.A., M.K., C.J., P.S., F.D., A.Z., M.O., M.M.C., S.D.S., E.P.N.); Department of Internal Medicine, Division of Cardiology, Pulmonology and Vascular Medicine, Heinrich-Heine-University, Düsseldorf, Germany (G.W., D.D., C.J.); Institute of Cardiology, Catholic University, Rome, Italy (F.A.); Collegium Medicum in Bydgoszcz, University of Nicolaus Copernicus, Toruń,
| | - Giuseppe Calveri
- From the Systematic Investigation and Research on Interventions and Outcomes (SIRIO) MEDICINE Research Network, Milan, Italy (G.W., D.D., F.A., M.K., C.J., P.S., F.D., A.Z., M.O., M.M.C., S.D.S., E.P.N.); Department of Internal Medicine, Division of Cardiology, Pulmonology and Vascular Medicine, Heinrich-Heine-University, Düsseldorf, Germany (G.W., D.D., C.J.); Institute of Cardiology, Catholic University, Rome, Italy (F.A.); Collegium Medicum in Bydgoszcz, University of Nicolaus Copernicus, Toruń,
| | - Francesco Maisano
- From the Systematic Investigation and Research on Interventions and Outcomes (SIRIO) MEDICINE Research Network, Milan, Italy (G.W., D.D., F.A., M.K., C.J., P.S., F.D., A.Z., M.O., M.M.C., S.D.S., E.P.N.); Department of Internal Medicine, Division of Cardiology, Pulmonology and Vascular Medicine, Heinrich-Heine-University, Düsseldorf, Germany (G.W., D.D., C.J.); Institute of Cardiology, Catholic University, Rome, Italy (F.A.); Collegium Medicum in Bydgoszcz, University of Nicolaus Copernicus, Toruń,
| | - Marco M. Ciccone
- From the Systematic Investigation and Research on Interventions and Outcomes (SIRIO) MEDICINE Research Network, Milan, Italy (G.W., D.D., F.A., M.K., C.J., P.S., F.D., A.Z., M.O., M.M.C., S.D.S., E.P.N.); Department of Internal Medicine, Division of Cardiology, Pulmonology and Vascular Medicine, Heinrich-Heine-University, Düsseldorf, Germany (G.W., D.D., C.J.); Institute of Cardiology, Catholic University, Rome, Italy (F.A.); Collegium Medicum in Bydgoszcz, University of Nicolaus Copernicus, Toruń,
| | - Stefano De Servi
- From the Systematic Investigation and Research on Interventions and Outcomes (SIRIO) MEDICINE Research Network, Milan, Italy (G.W., D.D., F.A., M.K., C.J., P.S., F.D., A.Z., M.O., M.M.C., S.D.S., E.P.N.); Department of Internal Medicine, Division of Cardiology, Pulmonology and Vascular Medicine, Heinrich-Heine-University, Düsseldorf, Germany (G.W., D.D., C.J.); Institute of Cardiology, Catholic University, Rome, Italy (F.A.); Collegium Medicum in Bydgoszcz, University of Nicolaus Copernicus, Toruń,
| | - Eliano P. Navarese
- From the Systematic Investigation and Research on Interventions and Outcomes (SIRIO) MEDICINE Research Network, Milan, Italy (G.W., D.D., F.A., M.K., C.J., P.S., F.D., A.Z., M.O., M.M.C., S.D.S., E.P.N.); Department of Internal Medicine, Division of Cardiology, Pulmonology and Vascular Medicine, Heinrich-Heine-University, Düsseldorf, Germany (G.W., D.D., C.J.); Institute of Cardiology, Catholic University, Rome, Italy (F.A.); Collegium Medicum in Bydgoszcz, University of Nicolaus Copernicus, Toruń,
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17
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Popovic B, Agrinier N, Voilliot D, Elfarra M, Villemot JP, Maureira P. Ventricular Dysfunction in Patients with Acute Coronary Syndrome Undergoing Coronary Surgical Revascularization: Prognostic Impact on Long-Term Outcomes. PLoS One 2016; 11:e0168634. [PMID: 28005944 PMCID: PMC5179064 DOI: 10.1371/journal.pone.0168634] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 12/05/2016] [Indexed: 11/18/2022] Open
Abstract
Background Patients with non-ST elevation acute coronary syndrome complicated by left ventricular dysfunction (LVEF) are a poor prognosis group. The aim of our study was to assess the short and long term LEVF prognostic value in a cohort of NSTE-ACS patients undergoing surgical revascularization. Methods We performed elective and isolated CABG on a cohort of 206 consecutive patients with LVEF≤0.40 complicating acute coronary syndrome. The case cohort was compared with a cohort of controls (LVEF>0.40) randomly selected (2:1) among patients who underwent the procedure during this period. Results The Kaplan-Meier 5-year estimated survival rates for patients in the low and normal LVEF groups were 70.8% (95% confidence interval CI: 64.2–77.4) and 81.7% (95%CI: 77.8–85.6), respectively. A low LVEF was associated with both a higher all-cause (HR [95%CI] = 1.84[1.18–2.86]) and a higher cardiovascular mortality (HR = 2.07 [1.27–3.38]) during the first 12 months of follow-up. After adjustment for potential confounders, a low LVEF remained associated with a higher cardiovascular mortality only (1.87[1.03–3.38]) during the first 12 months of follow-up. After 12 months of follow-up, a low LVEF was no more associated with all-cause, nor cardiovascular mortality. Conclusion Patients with low LVEF might require more intensive care than patients with normal LVEF during the year after the surgical procedure, but once the first postoperative year over, the initial low LVEF was no more associated with long term mortality.
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Affiliation(s)
| | - Nelly Agrinier
- CHU Nancy, Epidémiologie et Evaluation Cliniques, Nancy, France
| | | | - Mazen Elfarra
- CHU Nancy, Service de chirurgie des maladies cardiovasculaires et transplantations, Nancy, France
| | - Jean Pierre Villemot
- CHU Nancy, Service de chirurgie des maladies cardiovasculaires et transplantations, Nancy, France
| | - Pablo Maureira
- CHU Nancy, Service de chirurgie des maladies cardiovasculaires et transplantations, Nancy, France
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18
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Right Ventricular Systolic Dysfunction Assessed by Cardiac Magnetic Resonance Is a Strong Predictor of Cardiovascular Death After Coronary Bypass Grafting. Ann Thorac Surg 2016; 101:2176-84. [DOI: 10.1016/j.athoracsur.2015.11.035] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 10/09/2015] [Accepted: 11/13/2015] [Indexed: 11/30/2022]
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19
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Marui A, Kimura T, Nishiwaki N, Mitsudo K, Komiya T, Hanyu M, Shiomi H, Tanaka S, Sakata R. Comparison of five-year outcomes of coronary artery bypass grafting versus percutaneous coronary intervention in patients with left ventricular ejection fractions≤50% versus >50% (from the CREDO-Kyoto PCI/CABG Registry Cohort-2). Am J Cardiol 2014; 114:988-96. [PMID: 25124184 DOI: 10.1016/j.amjcard.2014.07.007] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Revised: 07/02/2014] [Accepted: 07/02/2014] [Indexed: 10/25/2022]
Abstract
Coronary heart disease is a major risk factor for left ventricular (LV) systolic dysfunction. However, limited data are available regarding long-term benefits of percutaneous coronary intervention (PCI) in the era of drug-eluting stent or coronary artery bypass grafting (CABG) in patients with LV systolic dysfunction with severe coronary artery disease. We identified 3,584 patients with 3-vessel and/or left main disease of 15,939 patients undergoing first myocardial revascularization enrolled in the CREDO-Kyoto PCI/CABG Registry Cohort-2. Of them, 2,676 patients had preserved LV systolic function, defined as an LV ejection fraction (LVEF) of >50% and 908 had impaired LV systolic function (LVEF≤50%). In patients with preserved LV function, 5-year outcomes were not different between PCI and CABG regarding propensity score-adjusted risk of all-cause and cardiac deaths. In contrast, in patients with impaired LV systolic function, the risks of all-cause and cardiac deaths after PCI were significantly greater than those after CABG (hazard ratio 1.49, 95% confidence interval 1.04 to 2.14, p=0.03 and hazard ratio 2.39, 95% confidence interval 1.43 to 3.98, p<0.01). In both patients with moderate (35%<LVEF≤50%) and severe (LVEF≤35%) LV systolic dysfunction, the risk of cardiac death after PCI was significantly greater than that after CABG (hazard ratio 2.25, 95% confidence interval 1.15 to 4.40, p=0.02 and hazard ratio 4.42, 95% confidence interval 1.48 to 13.24, p=0.01). Similarly, the risk of all-cause death tended to be greater after PCI than after CABG in both patients with moderate and severe LV systolic dysfunction without significant interaction (hazard ratio 1.57, 95% confidence interval 0.96 to 2.56, p=0.07 and hazard ratio 1.42, 95% confidence interval 0.71 to 2.82, p=0.32; interaction p=0.91). CABG was associated with better 5-year survival outcomes than PCI in patients with impaired LV systolic function (LVEF≤50%) with complex coronary disease in the era of drug-eluting stents. In both patients with moderate (35%<LVEF≤50%) and severe (LVEF≤35%) LV systolic dysfunction, CABG tended to have better survival outcomes than PCI.
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20
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Risk scores for predicting mortality after surgical ventricular reconstruction for ischemic cardiomyopathy: Results of a Japanese multicenter study. J Thorac Cardiovasc Surg 2014; 147:1868-74, 1874.e1-2. [DOI: 10.1016/j.jtcvs.2013.06.036] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Revised: 05/02/2013] [Accepted: 06/27/2013] [Indexed: 11/21/2022]
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21
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Yu L, Gu T, Shi E, Wang C, Fang Q, Yu Y, Zhao X, Qian C. Off-pump versus on-pump coronary artery bypass surgery in patients with triple-vessel disease and enlarged ventricles. Ann Saudi Med 2014; 34:222-8. [PMID: 25266182 PMCID: PMC6074587 DOI: 10.5144/0256-4947.2014.222] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Off-pump coronary artery bypass grafting (OPCAB) is a popular treatment for patients with ischemic heart disease, especially for high-risk patients. However, whether OPCAB can lead to better clinical outcomes than on-pump coronary artery bypass grafting (ONCAB) in patients with enlarged ventricles remains controversial. This prospective randomized study was designed to characterize comparison of early clinical outcome and mid-term follow-up following ONCAB versus OPCAB in patients with triple-vessel disease and enlarged ventricles. DESIGN AND SETTINGS Prospective randomized trial of patients treated at The First Affiliated Hospital, China Medical University, over a 3-year period (2007-2010). METHODS A total of 102 patients with triple-vessel disease and enlarged ventricles (end-diastolic dimension >=6.0 cm) were randomized to OPCAB or ONCAB between July 2007 and December 2010. The in-hospital out.comes were analyzed. The study included a mid-term follow-up, with a mean follow-up time of 49.40 (12.88 months). RESULTS No significant differences were recorded in the baseline clinical characteristics of ONCAB and OPCAB groups. A statistical difference was found between the two groups at the time of extubation, intensive care unit stay, hospital stay, blood requirements, incidence of intra-aortic balloon pump support, pulmonary complications, stroke, reoperation for bleeding, and inotropic requirements > 24 hours (P < .05). The number of anastomoses performed per patient, the incidence of postoperative ventricular arrhythmia, myocardial infarction, new-onset atrial fibrillation, hemodialysis, infective complications, recurrent angina, and percutaneous reintervention were similar between the 2 groups (P > .05). The left ventricular end-diastolic dimension was significantly smaller at 6 months' follow-up in the 2 groups than it was before operation ( < .05). No differences in hospital mortality and mid-term mortality between OPCAB and ONCAB groups were found. During the follow-up, no patient in either group had undergone repeat coronary artery bypass grafting. CONCLUSION No differences in early and mid-term mortality were found between OPCAB and ONCAB in patients with triple-vessel disease and enlarged ventricles. However, OPCAB seems to have a beneficial effect on postoperative complications.
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Affiliation(s)
| | - Tianxiang Gu
- Tianxiang Gu, MD, PhD, Dept. of Cardiac Surgery,, he First Affiliated Hospital,, China Medical University,, Nanjingbei street 155#,, Shenyang, China, 110001, T: 86-24-83283455, F: 86-24-83283455,
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Anantasit N, Boyd JH, Russell JA, Fjell CD, Lichtenstein SV, Walley KR. Prolonged QTc affects short-term and long-term outcomes in patients with normal left ventricular function undergoing cardiac surgery. J Thorac Cardiovasc Surg 2014; 147:1627-33. [DOI: 10.1016/j.jtcvs.2013.11.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Revised: 11/12/2013] [Accepted: 11/22/2013] [Indexed: 10/25/2022]
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23
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Left Ventricular End-Diastolic Pressure Predicts Survival in Coronary Artery Bypass Graft Surgery Patients. Ann Thorac Surg 2014; 97:1343-7. [PMID: 24406240 DOI: 10.1016/j.athoracsur.2013.10.047] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Revised: 10/19/2013] [Accepted: 10/22/2013] [Indexed: 11/23/2022]
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Marui A, Kimura T, Nishiwaki N, Komiya T, Hanyu M, Shiomi H, Tanaka S, Sakata R. Three-year outcomes after percutaneous coronary intervention and coronary artery bypass grafting in patients with heart failure: from the CREDO-Kyoto percutaneous coronary intervention/coronary artery bypass graft registry cohort-2†. Eur J Cardiothorac Surg 2014; 47:316-21; discussion 321. [PMID: 24662243 DOI: 10.1093/ejcts/ezu131] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES Ischaemic heart disease is a major risk factor for heart failure. However, long-term benefit of percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) in those patients has not been well elucidated. METHODS Of the 15 939 patients undergoing first myocardial revascularization enrolled in the CREDO-Kyoto PCI/CABG Registry Cohort-2, we identified 1064 patients with multivessel and/or left main disease with a history of heart failure (ACC/AHA Stage C or D). RESULTS There were 672 patients undergoing PCI and 392 CABG. Preprocedural left ventricular ejection fraction was not different between PCI and CABG (46.6 ± 15.1 vs 46.6 ± 14.6%, P = 0.89), but the CABG group included more patients with triple-vessel and left main disease (P < 0.01 each). Three-year outcomes revealed that the risk of hospital readmission for heart failure was higher after PCI than after CABG (hazard ratio [95% confidence interval]; 1.90 [1.18-3.05], P = 0.01). More importantly, adjusted mortality after PCI was significantly higher than after CABG (1.79 [1.13-2.82], P = 0.01). The risk of cardiac death after PCI was also higher than after CABG (1.98 [1.10-3.55], P = 0.02). Stratified analysis using the SYNTAX score demonstrated that risk of death was not different between PCI and CABG in patients with low (<23) and intermediate (23-32) SYNTAX scores (2.10 [0.57-7.68], P = 0.26 and 1.43 [0.63-3.21], P = 0.39, respectively), whereas those with a high (≥ 33) SYNTAX score, the risk of death was far higher after PCI than after CABG (4.83 [1.46-16.0], P = 0.01). CONCLUSIONS In patients with heart failure with advanced coronary artery disease, CABG was a better option than PCI because CABG was associated with better survival benefit, particularly in more complex coronary lesions stratified by the SYNTAX score.
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Affiliation(s)
- Akira Marui
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takeshi Kimura
- Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Noboru Nishiwaki
- Department of Cardiovascular Surgery, Nara Hospital Kinki University Faculty of Medicine, Ikoma, Japan
| | - Tatsuhiko Komiya
- Department of Cardiovascular Surgery, Kurashiki Central Hospital, Kurashiki, Japan
| | - Michiya Hanyu
- Department of Cardiovascular Surgery, Kokura Memorial Hospital, Kitakyushu, Japan
| | - Hiroki Shiomi
- Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Shiro Tanaka
- Department of Pharmacoepidemiology, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Nagendran J, Norris CM, Graham MM, Ross DB, MacArthur RG, Kieser TM, Maitland AM, Southern D, Meyer SR. Coronary Revascularization for Patients With Severe Left Ventricular Dysfunction. Ann Thorac Surg 2013; 96:2038-44. [DOI: 10.1016/j.athoracsur.2013.06.052] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Revised: 05/27/2013] [Accepted: 06/03/2013] [Indexed: 01/23/2023]
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Brickwedel J, Gulbins H, Reichenspurner H. Long-term follow-up after autologous skeletal myoblast transplantation in ischaemic heart disease. Interact Cardiovasc Thorac Surg 2013; 18:61-6. [PMID: 24130088 DOI: 10.1093/icvts/ivt434] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVES Short-term follow-up after autologous skeletal myoblasts (ASM) transplantation (Tx) (Myoblast Autologous Grafting in Ischaemic Cardiomyopathy (MAGIC) Phase II Study) for the treatment of ischaemic cardiomyopathy revealed improved left ventricular (LV) remodelling. Our study reports the longest long-term worldwide follow-up of a single-centre cohort, focusing on the safety and efficacy of ASM-Tx. METHODS The multicentre MAGIC Phase II Study involved 120 patients and was conducted between 2004 and 2006. Out of the 120 patients involved in the entire study, the cohort treated at our institution contained 7 patients only. These 7 patients received ASM-Tx (injection volume: 400 million cells, n = 2 low dosage; 800 million cells, n = 2 high dosage) or placebo (n = 3) injections, in addition to coronary artery bypass grafting (CABG). After closure of the MAGIC registry, we conducted a long-term follow-up for our 7-patient cohort. The mean follow-up was 72.0 ± 5.3 months. The follow-up was complete for echo data, implanted cardioverter defibrillator (ICD) report, clinical investigation and New York Heart Association (NYHA) class. RESULTS At final follow-up, all the patients were alive, and 5 were in NYHA class 1 or 2. There were 6 hospitalizations for congestive heart failure during the follow-up (1 patient from each group). One patient (placebo group) was treated twice for ventricular fibrillation by the ICD. The LV ejection fraction remained stable in all the three groups (31.1 ± 3.9% preoperative vs 29.4 ± 4.4% at final follow-up). The LV volumes were reduced in the high-dosage group, remained unchanged in the low-dosage group and deteriorated in the placebo group. CONCLUSIONS Our long-term data confirm the findings of the MAGIC study. The LV function did not improve, but the long-term LV volumes in the high-dosage group were reduced. During the follow-up, there were also no additional arrhythmogenic incidences. Our data could imply that CABG in combination with ASM-Tx is safe and has beneficial therapeutic effects in the long-term. However, due to the small patient number, the clinical impact is limited.
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Affiliation(s)
- Jens Brickwedel
- Department of Cardiovascular Surgery, University Heart Center Hamburg, Hamburg, Germany
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Yang JH, Choi SH, Song YB, Hahn JY, Choi JH, Jeong DS, Sung K, Kim WS, Lee YT, Gwon HC. Long-term outcomes of drug-eluting stent implantation versus coronary artery bypass grafting for patients with coronary artery disease and chronic left ventricular systolic dysfunction. Am J Cardiol 2013; 112:623-9. [PMID: 23711811 DOI: 10.1016/j.amjcard.2013.04.035] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2013] [Revised: 04/19/2013] [Accepted: 04/19/2013] [Indexed: 11/30/2022]
Abstract
Limited data are available on comparing the clinical outcomes of coronary artery bypass grafting (CABG) and drug-eluting stent (DES) implantation in patients with reduced left ventricular systolic function in the DES era. From January 2003 to December 2010, 953 patients with reduced left ventricular systolic function, defined as a left ventricular ejection fraction <50%, who had undergone percutaneous coronary intervention with DESs (n = 402) or CABG (n = 551) were enrolled in a retrospective, observational registry. Patients with acute myocardial infarction were excluded. Propensity score-matching analysis was also performed in 141 patient pairs. The primary outcome was all-cause death. The median follow-up duration was 32 months (interquartile range 15 to 61). All-cause death occurred in 81 patients (20.1%) in the DES group and 98 patient (17.8%) in the CABG group (p = 0.524). After propensity score matching, the long-term cumulative rate of death was not significantly different between the 2 groups (DES vs CABG 21.3% vs 19.1%; adjusted hazard ratio 1.23, 95% confidence interval 0.57 to 2.66, p = 0.603). However, the rate of major adverse cardiac and cerebrovascular events (35.5% vs 24.1%, adjusted hazard ratio 1.69, 95% confidence interval 1.04 to 2.77, p = 0.036) was higher in the DES group than the CABG group. This was driven by the higher incidence of repeat revascularization in the DES group (11.3% vs 4.3%, adjusted hazard ratio 3.65, 95% confidence interval 1.01 to 10.37, p = 0.018). In conclusion, DES implantation provides comparable long-term clinical outcomes, except for repeat revascularization, to CABG in patients with coronary artery disease and chronic left ventricular systolic dysfunction.
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Affiliation(s)
- Jeong Hoon Yang
- Division of Cardiology, Department of Medicine, Cardiac and Vascular Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
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Coronary artery bypass grafting in patients with left ventricular dysfunction: predictors of long-term survival and impact of surgical strategies. Int J Cardiol 2013; 168:5316-22. [PMID: 23978366 DOI: 10.1016/j.ijcard.2013.08.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Revised: 07/01/2013] [Accepted: 08/03/2013] [Indexed: 01/08/2023]
Abstract
BACKGROUND In the surgical management of ischemic cardiomyopathy, factors associated with long-term prognosis after coronary artery bypass grafting (CABG) in patients with severe left ventricular (LV) dysfunction are poorly understood. This study aimed to determine predictors of clinical outcomes in patients with severe LV dysfunction undergoing CABG. METHODS Out of 6084 patients who underwent CABG between 1997 and 2011, 476 patients (aged 62.6 ± 9.3 years, 100 females) were identified as having severe LV dysfunction (ejection fraction ≤ 35%), preoperatively. All-cause mortality and adverse cardiac events (myocardial infarction, repeat revascularization, stroke and hospitalization due to cardiovascular causes) were evaluated during a median follow-up period of 55.2 months (inter-quartile range: 26.4-94.8 months). RESULTS During the follow-up, 187 patients (39.3%) died and 126 cardiac events occurred in 104 patients (21.8%). Five-year survival and event-free survival rates were 72.1 ± 2.2% and 61.3 ± 2.4%, respectively. On Cox-regression analysis, old age (P < 0.001), recent MI (P < 0.001), history of coronary stenting (P = 0.023), decreased glomerular filtration rate (P < 0.001), and presence of mitral regurgitation (≥moderate) (P = 0.012) or LV wall thinning (P = 0.007) emerged as significant and independent predictors of death. After adjustment for important covariates affecting outcomes, none of the pump strategy (off-pump vs. on-pump), concomitant mitral surgery or surgical ventricular reconstruction (SVR) affected survival or event-free survival (P = 0.082 to >0.99). CONCLUSIONS Long-term survival following CABG in patients with severe LV dysfunction was affected by age, renal function, recent MI, prior coronary stenting, and presence of mitral regurgitation or LV wall thinning. Neither concomitant mitral surgery nor SVR, however, had significant influence on clinical outcomes.
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Fukui T, Tabata M, Takanashi S. Long-term outcomes after off-pump coronary artery bypass grafting in left ventricular dysfunction. Ann Thorac Cardiovasc Surg 2013; 20:143-9. [PMID: 23518634 DOI: 10.5761/atcs.oa.12.02177] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
PURPOSE We assessed the long-term clinical, angiographic, and echocardiographic outcomes of patients with left ventricular dysfunction (ejection fraction ≤40%) who underwent isolated off-pump coronary artery bypass grafting. METHODS One hundred sixty one patients were included. Mean age was 67.2 ± 11.4 years, and 20 patients (12.4%) were female. Eighty-eight patients (54.7%) were New York Heart Association functional class 3 or 4. Early postoperative and follow-up angiography and echocardiography findings were analyzed, and mid-term survival rates (mean follow-up 40.7 ± 25.6 months) were calculated. RESULTS Mean number of distal anastomoses was 4.4 ± 1.3. Bilateral internal thoracic artery grafts were used in 84.5% of patients. Operative mortality was 2.5%. Early patency rate of anastomoses was 98.3%. Early postoperative ejection fraction improved from 33.1 ± 5.6% preoperatively to 36.9 ± 9.5% (p <0.001). Seven-year survival rate was 73.9 ± 5.3%, and freedom from cardiac events rate was 68.5 ± 5.2%. One-year patency rate of anastomoses was 85.8%. Follow-up ejection fraction was 39.1 ± 10.7% (p <0.001). CONCLUSIONS Early and long-term outcomes of off-pump coronary artery bypass grafting in patients with left ventricular dysfunction were favorable, including early postoperative and follow-up patency rates of anastomoses and echocardiographic recovery of ejection fraction.
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Affiliation(s)
- Toshihiro Fukui
- Department of Cardiovascular Surgery, Sakakibara Heart Institute
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Shirani J. Is ischemia the most powerful indicator of myocardial viability? Curr Cardiol Rep 2013; 15:354. [PMID: 23512623 DOI: 10.1007/s11886-013-0354-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Chronic symptomatic ischemic heart failure remains a major cause of morbidity and mortality in the adult. Recently, the utility of coronary revascularization in early management of patients with stable ischemic heart failure has come into question by several randomized clinical trials. Some of these studies have also challenged the notion that determination of the predominant state of the dysfunctional left ventricular myocardium (viable or scarred) may facilitate identification of patients who would benefit the most from revascularization. These prospective, randomized, multi-center trials have also exposed many of the practical impediments to conducting an ideal clinical investigation particularly in the context of increasingly recognized need for goal-directed and personalized approaches to management of ischemic heart disease. This review summarizes the present evidence for an ischemia-guided approach to evaluation and treatment of chronic ischemic heart disease with left ventricular systolic dysfunction.
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Affiliation(s)
- Jamshid Shirani
- Department of Cardiology, St. Luke's University Health Network, 801 Ostrum Street, Bethlehem, PA, 18015, USA.
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Wakasa S, Matsui Y, Isomura T, Takanashi S, Yamaguchi A, Komiya T, Cho Y, Kobayashi J, Yaku H, Kokaji K, Arai H, Sawa Y. Impact of left ventricular remodelling on outcomes after left ventriculoplasty for ischaemic cardiomyopathy: Japanese surgical ventricular reconstruction group experience. Interact Cardiovasc Thorac Surg 2013; 16:785-91. [PMID: 23475121 DOI: 10.1093/icvts/ivt096] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES Surgical ventricular reconstruction (SVR) for patients with severe left ventricular (LV) remodelling due to ischaemic cardiomyopathy is still controversial, because the Surgical Treatment for Ischaemic Heart Failure (STICH) trial demonstrated that SVR not only has no beneficial effect on survival compared with coronary artery bypass grafting (CABG) alone, but also is worse for those with a larger LV. Therefore, we assessed the impact of LV remodelling on the outcomes after SVR for ischaemic cardiomyopathy in Japan, using Di Donato's LV shape classification. METHODS From 2000 to 2010, 627 patients underwent SVR for ischaemic heart failure in 11 Japanese hospitals. To assess the patients with an LV ejection fraction (LVEF) of ≤ 35% like the STICH trial, considering the severity of LV remodelling, the patients with a preoperative LVEF of >35%, no preoperative LV volume assessment and no preoperative LV shape classification were excluded. Finally, 323 patients were selected as the study subjects. The LV shape was divided into three types according to Di Donato's classification. Types 1 and 3 indicate the aneurysmal and globally akinetic LV, respectively. Type 2 is the intermediate shape. RESULTS Type 1, 2 and 3 LV shapes were observed in 85 (26%), 104 (32%) and 134 (42%) of the patients, respectively. The preoperative LV volume and diameter increased if the LV became more akinetic (Type 3 > 2 > 1, P < 0.001). LVEF was lower in those with more akinetic LV (P = 0.002). The preoperative LV end-diastolic volume index and LVEF in Type 3 patients were 133 ± 47 ml/m(2) and 22 ± 7%, respectively. Mitral valve repair was more frequently performed for patients with the Type 3 LV shape (65%) than for the others (P < 0.001). The hospital mortality rates were 2.4, 2.9 and 7.4% for Type 1, 2 and 3 patients, respectively (P = 0.16). Kaplan-Meier analysis demonstrated no significant difference in mortality among the three groups (log-rank P = 0.37). The 5-year survival rates were 81, 70 and 73% for Type 1, 2 and 3 patients, respectively. CONCLUSIONS The severity of LV remodelling did not affect survival after SVR plus CABG. The results of SVR were acceptable even for those with globally akinetic LV due to ischaemic cardiomyopathy.
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Affiliation(s)
- Satoru Wakasa
- Department of Cardiovascular and Thoracic Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
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Cardiovascular and renal effects of carperitide and nesiritide in cardiovascular surgery patients: a systematic review and meta-analysis. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2011; 15:R258. [PMID: 22032777 PMCID: PMC3334809 DOI: 10.1186/cc10519] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Revised: 09/27/2011] [Accepted: 10/27/2011] [Indexed: 12/25/2022]
Abstract
INTRODUCTION Acute kidney injury (AKI) following cardiovascular surgery is a common disease process and is associated with both morbidity and mortality. The aim of our study was to evaluate the cardiovascular and renal effects of an atrial natriuretic peptide (ANP, carperitide) and a B-type (or brain) natriuretic peptide (BNP, nesiritide) for preventing and treating AKI in cardiovascular surgery patients. METHODS Electronic databases, including PubMed, EMBASE and references from identified articles were used for a literature search. RESULTS Data on the infusion of ANP or BNP in cardiovascular surgery patients was collected from fifteen randomized controlled trials and combined. The infusion of ANP or BNP increased the urine output and creatinine clearance or glomerular filtration rate, and reduced the use of diuretics and the serum creatinine levels. A meta-analysis showed that ANP infusion significantly decreased peak serum creatinine levels, incidence of arrhythmia and renal replacement therapy. The meta-analysis also showed that ANP or BNP infusion significantly decreased the length of ICU stay and hospital stay compared with controls. However, the combined data were insufficient to determine how ANP or BNP infusion during the perioperative period influences long-term outcome in cardiovascular surgery patients. CONCLUSIONS The infusion of ANP or BNP may preserve postoperative renal function in cardiovascular surgery patients. A large, multicenter, prospective, randomized controlled trial will have to be performed to assess the therapeutic potential of ANP or BNP in preventing and treating AKI in the cardiovascular surgical setting.
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Takehara N, Matsubara H. Cardiac regeneration therapy: connections to cardiac physiology. Am J Physiol Heart Circ Physiol 2011; 301:H2169-80. [PMID: 21963835 DOI: 10.1152/ajpheart.00768.2011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Without heart transplantation, a large number of patients with failing hearts worldwide face poor outcomes. By means of cardiomyocyte regeneration, cardiac regeneration therapy is emerging with great promise as a means for restoring loss of cardiac function. However, the limited success of clinical trials using bone marrow-derived cells and myoblasts with heterogeneous constituents, transplanted at a wide range of cell doses, has led to disagreement on the efficacy of cell therapy. It is therefore essential to reevaluate the evidence for the efficacy of cell-based cardiac regeneration therapy, focusing on targets, materials, and methodologies. Meanwhile, the revolutionary innovation of cardiac regeneration therapy is sorely needed to help the millions of people who suffer heart failure from acquired loss of cardiomyocytes. Cardiac regeneration has been used only in limited species or as a developing process in the rodent heart; now, the possibility of cardiomyocyte turnover in the human heart is being revisited. In the pursuit of this concept, the use of cardiac stem/progenitor stem cells in the cardiac niche must be focused to usher in a second era of cardiac regeneration therapy for the severely injured heart. In addition, tissue engineering and cellular reprogramming will advance the next era of treatment that will enable current cell-based therapy to progress to "real" cardiac regeneration therapy. Although many barriers remain, the prevention of refractory heart failure through cardiac regeneration is now becoming a realistic possibility.
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Affiliation(s)
- Naofumi Takehara
- Department of Cardiovascular Regeneration and Innovation, Asahikawa Medical University, Japan
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Predictors of low cardiac output syndrome after isolated coronary artery bypass surgery: trends over 20 years. Ann Thorac Surg 2011; 92:1678-84. [PMID: 21939957 DOI: 10.1016/j.athoracsur.2011.06.017] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2011] [Revised: 06/04/2011] [Accepted: 06/08/2011] [Indexed: 11/20/2022]
Abstract
BACKGROUND Postoperative low cardiac output syndrome (LCOS) is associated with high morbidity and mortality after coronary artery bypass grafting (CABG). We sought to examine trends in predictors of LCOS after isolated CABG. METHODS A total of 25,176 consecutive patients who underwent isolated CABG between 1990 and 2009 were included. To examine trends over time, we divided patients into four equivalent eras (1990 to -1994, n = 6,489; 1995 to 1999, n = 8,175; 2000 to 2004, n = 6,741; 2005 to 2009, n = 3,797). We used multivariable analysis to identify predictors of LCOS. RESULTS The prevalence of LCOS declined from 9.1% (1990 to 1994) to 2.4% (2005 to 2009, p < 0.001). The following were the major independent predictors of LCOS for the entire cohort (odds ratios in parentheses): reoperative CABG (4.1); earlier year of operation (4.1, 2.6, 1.7 for the first, second, and third eras, respectively); left ventricular ejection fraction (LVEF) less than 0.20 (3.5), emergency surgery (2.7), cardiogenic shock (2.3), female gender (2), and LVEF 0.20 to 0.39 (2). Unlike other risk factors, the impact of LVEF less than 0.20 on development of postoperative LCOS increased substantially in the latest era (odds ratio, 7.8) compared with (odds ratios, 3.1, 4.3, and 3.2) the first, second, and third eras, respectively. CONCLUSIONS The impact of LVEF less than 0.20 on development of postoperative LCOS has increased markedly in the latest era of our study. Prudent preoperative evaluation in patients with severe left ventricular dysfunction is critical. Further innovative research in myocardial protection and circulatory support is warranted in patients with severe left ventricular dysfunction.
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Marchenko A, Chernyavsky A, Efendiev V, Volokitina T, Karaskov A. Results of coronary artery bypass grafting alone and combined with surgical ventricular reconstruction for ischemic heart failure. Interact Cardiovasc Thorac Surg 2011; 13:46-51. [DOI: 10.1510/icvts.2010.253716] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Kunadian V, Zaman A, Qiu W. Revascularization among patients with severe left ventricular dysfunction: a meta-analysis of observational studies. Eur J Heart Fail 2011; 13:773-84. [PMID: 21478241 DOI: 10.1093/eurjhf/hfr037] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
AIMS Coronary artery bypass graft (CABG) surgery is the standard of care for the management of patients with severe three-vessel and left main coronary artery disease (CAD). However, the optimal strategy for management of patients with CAD and severe left ventricular (LV) dysfunction [ejection fraction (EF) ≤35%] is not clear. A meta-analysis of observational studies was performed to determine the operative mortality and long-term (5-year actuarial survival) outcomes among patients with severe LV dysfunction undergoing CABG. METHODS AND RESULTS A systematic computerized literature search was performed and observational studies consisting of patients undergoing isolated CABG for CAD and severe LV dysfunction were included. Studies that did not report operative mortality, long-term (≥1 year) survival data, or pre-operative EF and multiple studies from the same group were excluded. In total, 4119 patients from 26 observational clinical studies were included. The estimated mean age was 63.9 years and 82.4% of patients were men. The mean (estimate) pre-operative EF was 24.7% (95% CI 22.5-27.0%). The operative mortality among patients (26 studies, n= 3621) who underwent on-pump CABG was 5.4%, n= 189 (95% CI 4.5-6.4%). The 5-year actuarial survival among patients (13 studies, n= 1980) who underwent on-pump CABG was 73.4%, n= 1483 (95% CI 68.7-77.7%). Patients who underwent off-pump CABG (7 studies, n= 498) tended to have reduced operative mortality of 4.4%, n= 20 (95% CI 2.8-6.4%). The mean (estimate) post-operative EF was 35.19% (95% CI 31.95-38.43%). CONCLUSION The present meta-analysis demonstrates that based on data from available observational clinical studies, CABG can be performed with acceptable operative mortality and 5-year actuarial survival in patients with severe LV dysfunction.
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Preoperative ejection fraction as a predictor of survival after coronary artery bypass grafting: comparison with a matched general population. J Cardiothorac Surg 2010; 5:29. [PMID: 20416050 PMCID: PMC2873361 DOI: 10.1186/1749-8090-5-29] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2009] [Accepted: 04/23/2010] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Preoperative left ventricular dysfunction is an established risk factor for early and late mortality after revascularization. This retrospective analysis demonstrates the effects of preoperative ejection fraction on the short-term and long-term survival of patients after coronary artery bypass grafting. METHODS Early and late mortality were determined retrospectively in 10 626 consecutive patients who underwent isolated coronary bypass between January 1998 and December 2007. The subjects were divided into 3 groups according to their preoperative ejection fraction. Expected survival was estimated by comparison with a general Dutch population group described in the database of the Dutch Central Bureau for Statistics. For each of our groups with a known preoperative ejection fraction, a general Dutch population group was matched for age, sex, and year of operation. RESULTS AND DISCUSSION One hundred twenty-two patients were lost to follow-up. In 219 patients, the preoperative ejection fraction could not be retrieved. In the remaining patients (n = 10 285), the results of multivariate logistic regression and Cox regression analysis identified the ejection fraction as a predictor of early and late mortality. When we compared long-term survival and expected survival, we found a relatively poorer outcome in all subjects with an ejection fraction of < 50%. In subjects with a preoperative ejection fraction of > 50%, long-term survival exceeded expected survival. CONCLUSIONS The severity of left ventricular dysfunction was associated with poor survival. Compared with the survival of the matched general population, our coronary bypass patients had a worse outcome only if their preoperative ejection fraction was < 50%.
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Sezai A, Hata M, Niino T, Yoshitake I, Unosawa S, Wakui S, Fujita K, Takayama T, Kasamaki Y, Hirayama A, Minami K. Continuous Low-Dose Infusion of Human Atrial Natriuretic Peptide in Patients With Left Ventricular Dysfunction Undergoing Coronary Artery Bypass Grafting. J Am Coll Cardiol 2010; 55:1844-51. [DOI: 10.1016/j.jacc.2009.11.085] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2009] [Revised: 10/30/2009] [Accepted: 11/02/2009] [Indexed: 11/24/2022]
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Boehm J, Haas F, Bauernschmitt R, Wagenpfeil S, Voss B, Schwaiger M, Lange R. Impact of preoperative positron emission tomography in patients with severely impaired LV-function undergoing surgical revascularization. Int J Cardiovasc Imaging 2010; 26:423-32. [PMID: 20091350 PMCID: PMC2852592 DOI: 10.1007/s10554-010-9585-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2009] [Accepted: 01/07/2010] [Indexed: 12/03/2022]
Abstract
In patients with ischemic cardiomyopathy, coronary artery bypass grafting (CABG) offers an important therapeutic option but is still associated with high perioperative mortality. Although previous studies suggest a benefit from revascularization for patients with defined viability by a non-invasive technique, the role of viability assessment to determine suitability for revascularization in patients with ischemic cardiomyopathy has not yet been defined. This study evaluates the hypothesis that the use of PET imaging in the decision-making process for CABG will improve postoperative patient survival. We reviewed 476 patients with ischemic cardiomyopathy (LV ejection fraction ≤0.35) who were considered candidates for CABG between 1994 and 2004 on the basis of clinical presentation and angiographic data. In a Standard Care Group, 298 patients underwent CABG. In a second PET-assisted management group of 178 patients, 152 patients underwent CABG (PET-CABG) and 26 patients were excluded from CABG because of lack of viability (PET-Alternatives). Primary endpoint was postoperative survival. There were two in hospital deaths in the PET-CABG (1.3%) and 30 (10.1%) in the Standard Care Group (P = 0.018). The survival rate after 1, 5 and 9.3 years was 92.0, 73.3 and 54.2% in the PET-CABG and 88.9, 62.2 and 35.5% in the Standard Care Group, respectively (P = 0.005). Cox-regression analysis revealed a significant influence on long-term survival of patient selection by viability assessment via PET (P = 0.008), of LV-function (P = 0.017), and age >70 (P = 0.016). Preoperative assessment of myocardial viability via PET identifies patients, who will benefit most from CABG.
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Affiliation(s)
- Johannes Boehm
- Klinik fuer Herz- und Gefaesschirurgie, Deutsches Herzzentrum Muenchen, Technische Universitaet Muenchen, Lazarettstrasse 36, 80636, Munich, Germany.
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Ahmadi SH, Karimi A, Movahedi N, Shirzad M, Marzban M, Tazik M, Aramin H, Dowlatshahi S, Fathollahi MS. Is severely left ventricular dysfunction a predictor of early outcomes in patients with coronary artery bypass graft? HEART ASIA 2010; 2:62-6. [PMID: 27325945 DOI: 10.1136/ha.2009.001008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/27/2009] [Indexed: 11/04/2022]
Abstract
BACKGROUND Traditionally, the Coronary artery bypass grafting (CABG) surgery outcomes of patients with low ejection fraction (EF) have been worse compared to patients with moderate to good left ventricular function. During the past decade, despite improvements in surgical techniques, the trend in the outcomes of these patients remained unclear. AIM We sought to determine the effect of left ventricular dysfunction on early mortality and morbidity and to specify predictors of early mortality of isolated CABG in a large group of patients EF≤35%. METHOD We retrospectively analyzed data of 14 819 consecutive patients undergoing isolated CABG from February 2002 to March 2008 at Tehran Heart Center. Patients were divided into two groups based on their LVEF (EF≤35% and EF>35%). Differences in case-mix between patients with EF≤35% and those without were controlled by constructing a propensity score. RESULTS Mean age of our patients was 58.7±9.5 years. EF≤35% was present in 1342 (9.1%) of patients. In-hospital mortality was significantly increased univariate in EF≤35%, while this association diminished after confounders were adjusted for by using the propensity score (p=0.242). Following adjustment it was demonstrated that renal failure, cardiac arrest, heart block, infectious complication, total ventilation time, and total ICU hours were more frequent in patients with EF≤35%. CONCLUSION We demonstrated EF≤35% was not predictor of in-hospital mortality in patients underwent CABG. Careful preoperative patient selection remains essential in patients with EF≤35% undergoing CABG.
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Affiliation(s)
- Seyed Hossein Ahmadi
- Cardiovascular Surgery Department, Tehran Heart Center, Medical Sciences, University of Tehran, Iran
| | - Abbasali Karimi
- Cardiovascular Surgery Department, Tehran Heart Center, Medical Sciences, University of Tehran, Iran
| | - Namvar Movahedi
- Cardiovascular Surgery Department, Tehran Heart Center, Medical Sciences, University of Tehran, Iran
| | - Mahmood Shirzad
- Cardiovascular Surgery Department, Tehran Heart Center, Medical Sciences, University of Tehran, Iran
| | - Mehrab Marzban
- Cardiovascular Surgery Department, Tehran Heart Center, Medical Sciences, University of Tehran, Iran
| | - Mokhtar Tazik
- Clinical Research Department, Tehran Heart Center, Medical Sciences, University of Tehran, Iran
| | - Hermineh Aramin
- Clinical Research Department, Tehran Heart Center, Medical Sciences, University of Tehran, Iran
| | - Samaneh Dowlatshahi
- Clinical Research Department, Tehran Heart Center, Medical Sciences, University of Tehran, Iran
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Gorki H, Patel NC, Panagopoulos G, Jennings J, Balacumaraswami L, Plestis K, Subramanian VA. Off-pump Coronary Bypass Surgery in Patients with Low Ejection Fraction. INNOVATIONS-TECHNOLOGY AND TECHNIQUES IN CARDIOTHORACIC AND VASCULAR SURGERY 2010. [DOI: 10.1177/155698451000500108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Hagen Gorki
- Department of Cardiothoracic Surgery, Lenox Hill Hospital, New York, NY USA
- Department of Cardiac Surgery, Zentralklinik Bad Berka, Bad Berka, Germany
| | - Nirav C. Patel
- Department of Cardiothoracic Surgery, Lenox Hill Hospital, New York, NY USA
| | | | - Joan Jennings
- Department of Cardiothoracic Surgery, Lenox Hill Hospital, New York, NY USA
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Off-pump Coronary Bypass Surgery in Patients with Low Ejection Fraction. INNOVATIONS-TECHNOLOGY AND TECHNIQUES IN CARDIOTHORACIC AND VASCULAR SURGERY 2010; 5:33-41. [PMID: 22437274 DOI: 10.1097/imi.0b013e3181cf8228] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Objective Long-term survival after off-pump surgery in patients with low ejection fraction was investigated. Methods Three hundred forty-six patients with ejection fraction 30% or less with isolated off-pump coronary artery bypass surgery (OPCAB) were compared with a propensity matched historical group operated on-pump (ONCAB) and with data from literature after percutaneous coronary intervention and OPCAB surgery. Results The lower invasiveness of OPCAB contributed to a significantly better 30-day survival, shorter postoperative length of stay, and fewer in-hospital complications. Incomplete revascularization of the posterior and lateral territories of the heart correlated with higher 1-year mortality. The probability of survival for 8 years after OPCAB was 50.1% (n = 76) versus 49.7% (n = 82) for ONCAB without comparable data from literature for OPCAB or percutaneous coronary intervention in these high-risk patients. Conclusions OPCAB surgery in patients with low ejection fraction is a viable alternative but so far without demonstrable long-term survival advantage to ONCAB.
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Ranjan AK, Kumar U, Hardikar AA, Poddar P, Nair PD, Hardikar AA. Human blood vessel-derived endothelial progenitors for endothelialization of small diameter vascular prosthesis. PLoS One 2009; 4:e7718. [PMID: 19890388 PMCID: PMC2766657 DOI: 10.1371/journal.pone.0007718] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2009] [Accepted: 10/10/2009] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Coronary bypass graft failure as a result of acute thrombosis and intimal hyperplasia has been the major challenge in surgical procedures involving small-diameter vascular prosthesis. Coating synthetic grafts with patients' own endothelial cells has been suggested to improve the patency rate and overall success of bypass surgeries. METHODOLOGY/PRINCIPAL FINDINGS We isolated endothelial progenitor cells (EPCs) from leftover pieces of human saphenous vein/mammary artery. We demonstrate that EPCs can be expanded to generate millions of cells under low-density culture conditions. Exposure to high-density conditions induces differentiation to endothelial cell phenotype. EPC-derived endothelial cells show expression of CD144high, CD31, and vWF. We then assessed the ability of differentiated endothelial cells to adhere and grow on small diameter expanded polytetrafluoroethylene (ePTFE) tubings. Since ePTFE tubings are highly hydrophobic, we optimized protocols to introduce hydrophilic groups on luminal surface of ePTFE tubings. We demonstrate here a stepwise protocol that involves introduction of hydrophilic moieties and coating with defined ECM components that support adhesion of endothelial cells, but not of blood platelets. CONCLUSION/SIGNIFICANCE Our data confirms that endothelial progenitors obtained from adult human blood vessels can be expanded in vitro under xenoprotein-free conditions, for potential use in endothelialization of small diameter ePTFE grafts. These endothelialized grafts may represent a promising treatment strategy for improving the clinical outcome of small-caliber vascular grafts in cardiac bypass surgeries.
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Affiliation(s)
- Amaresh K. Ranjan
- Stem Cells and Diabetes Section, National Center for Cell Science, Pune, India
| | - Umesh Kumar
- Materials Chemistry Division, National Chemical Laboratory, Pune, India
| | | | - Pankaj Poddar
- Materials Chemistry Division, National Chemical Laboratory, Pune, India
| | - Prabha D. Nair
- Division of Tissue Engineering and regeneration Technologies, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, India
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Nardi P, Pellegrino A, Scafuri A, Colella D, Bassano C, Polisca P, Chiariello L. Long-term outcome of coronary artery bypass grafting in patients with left ventricular dysfunction. Ann Thorac Surg 2009; 87:1401-7. [PMID: 19379873 DOI: 10.1016/j.athoracsur.2009.02.062] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2008] [Revised: 02/19/2009] [Accepted: 02/20/2009] [Indexed: 02/08/2023]
Abstract
BACKGROUND Coronary artery bypass grafting (CABG) is a well-accepted therapeutic strategy for patients with multivessel coronary artery disease and left ventricular dysfunction. The aim of the study was to evaluate long-term results after CABG in patients with preoperative left ventricular ejection fraction (LVEF) of 0.35 or less. METHODS Data from 302 consecutive patients (mean age, 62 +/- 8.7 years) with LVEF of 0.35 or less who had undergone CABG were analyzed. Epinephrine and enoximone with or without norepinephrine were used to increase cardiac index. Intra-aortic balloon pump or left ventricular assist devices, or both, were used in case of postoperative low output syndrome. RESULTS Complete revascularization was achieved in 298 of 302 patients (98.7%); internal thoracic artery was used in 294 (97.4%). Operative mortality was 5.3%; independent predictors of operative mortality were emergency CABG (p = 0.005), history of ventricular arrhythmias (p = 0.007), and previous anterior myocardial infarction (p = 0.05). At follow-up, all-cause mortality was 30.8%, and 10-year survival was 63% +/- 4%; independent predictors of late all-cause mortality were history of ventricular arrhythmias (p < 0.0001), chronic renal dysfunction (p = 0.0004), and diabetes mellitus (p = 0.04). Cardiac death was 20.4%, and 10-year freedom from cardiac death was 73% +/- 3.3%; independent predictors of cardiac death were history of ventricular arrhythmias (p = 0.004), chronic renal dysfunction (p = 0.03), and more than one previous anterior myocardial infarction (p = 0.004). At 80 +/- 44 months of follow-up, echocardiography showed significant LVEF improvement (0.43 +/- 0.09 versus 0.28 +/- 0.06, p < 0.0001). Ten-year freedom from myocardial infarction was 87% +/- 3%. CONCLUSIONS Excellent long-term results after CABG can be expected for patients with LVEF of 0.35 or less. Complete revascularization and internal thoracic artery grafting are associated with high freedom from myocardial infarction. Careful treatment of arrhythmias, diabetes, and renal dysfunction is necessary to improve long-term survival.
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Affiliation(s)
- Paolo Nardi
- Department of Cardiac Surgery, Policlinico Tor Vergata, Tor Vergata University of Rome, Rome, Italy.
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Filsoufi F, Jouan J, Chilkwe J, Rahmanian PR, Castillo J, Carpentier AF, Adams DH. Results and predictors of early and late outcome of coronary artery bypass graft surgery in patients with ejection fraction less than 20%. Arch Cardiovasc Dis 2008; 101:547-56. [DOI: 10.1016/j.acvd.2008.09.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2008] [Revised: 06/19/2008] [Accepted: 09/05/2008] [Indexed: 11/30/2022]
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Soliman Hamad MA, Tan MESH, van Straten AHM, van Zundert AAJ, Schönberger JPAM. Long-term results of coronary artery bypass grafting in patients with left ventricular dysfunction. Ann Thorac Surg 2008; 85:488-93. [PMID: 18222250 DOI: 10.1016/j.athoracsur.2007.09.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2007] [Revised: 09/07/2007] [Accepted: 09/10/2007] [Indexed: 10/22/2022]
Abstract
BACKGROUND In this prospective study, we investigated the determinants of long-term outcome, symptoms, and left ventricular function after coronary artery bypass grafting in patients with a moderate to severely decreased left ventricular ejection fraction. METHODS Between 1997 and 1998, 75 consecutive patients with moderate to severe left ventricular dysfunction underwent coronary artery bypass grafting procedures. The operative mortality rate was 4.0%, and the 72 survivors were monitored for 8 years. The end points were mortality, symptomatic status (New York Heart Association [NYHA] functional class), and left ventricular function. RESULTS The total survival rate after 8 years was 89.3%. During follow-up, 8 patients died. Death was attributed to a cardiac cause in 5 patients and to a noncardiac cause in 3. There was no statistically significant difference between preoperative and late postoperative NYHA functional class, despite a statistically significant improvement that persisted for up to 4 years after CABG. The results of echocardiography showed a statistically significant improvement in the left ventricular ejection fraction (from 0.322 +/- 0.06 preoperatively to 0.463 +/- 0.02 at follow-up, p < 0.001). Multivariate analysis revealed that the left ventricular end-systolic volume index, the presence of angina pectoris, and absence of symptoms of congestive heart failure were preoperative indicators of freedom from heart failure after coronary operations (p < 0.05). CONCLUSIONS Coronary artery bypass grafting for patients with moderate-to-severe left ventricular dysfunction is associated with acceptable long-term results. The left ventricular end-systolic volume index is a simple noninvasive method to aid in the preoperative decision making in such patients.
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Fukui T, Shibata T, Sasaki Y, Hirai H, Motoki M, Takahashi Y, Nakahira A, Suehiro S. Long-term survival and functional recovery after isolated coronary artery bypass grafting in patients with severe left ventricular dysfunction. Gen Thorac Cardiovasc Surg 2007; 55:403-8. [PMID: 18018603 DOI: 10.1007/s11748-007-0148-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Coronary artery bypass grafting (CABG) in patients with left ventricular dysfunction has been considered to be a challenging operation. We assessed the early angiographic and long-term clinical and functional outcomes of patients with poor left ventricular function who underwent isolated CABG. METHODS We retrospectively reviewed the records of 78 patients with a poor left ventricular ejection fraction (35% or less) who underwent isolated CABG between January 1991 and November 2006. The mean age of the patients was 66.1+/-9.4 years, and their mean New York Heart Association functional class was 3.1+/-0.8. Their mean end-diastolic left ventricular diameter was 57.4+/-8.1 mm, and their mean grade of mitral regurgitation was 0.7+/-1.0. Early postoperative angiograms were performed at 32.5+/-33.5 days after the operation. Interval echocardiographic data were analyzed, and the long-term survival rate was evaluated. RESULTS The average number of distal anastomoses per patient was 3.2 +/-1.1. The operative mortality rate was 7.7%. Stroke occurred in 1.3% of patients. The overall patency rates for arterial and venous grafts were 100% and 97.2%, respectively. The left ventricular ejection fraction significantly improved from 28.2%+/-5.1% to 34.4%+/-8.4%. Both the end-diastolic and end-systolic left ventricular dimensions significantly decreased from 57.4+/-8.1 to 55.1+/-8.8 mm and from 47.4+/-8.4 to 45.1+/-9.7, re spectively. The actuarial patient survival rate at 10 years was 73.1%. CONCLUSION CABG in patients with left ventricular dysfunction was effective, with favorable early graft patency rates. The long-term outcome was also acceptable, with echocardiographic functional recovery.
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Affiliation(s)
- Toshihiro Fukui
- Department of Cardiovascular Surgery, Osaka City University Graduate School of Medicine, Osaka, and Kansai Rosai Hospital, Hyogo, Japan.
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Koch CG, Li L, Lauer M, Sabik J, Starr NJ, Blackstone EH. Effect of Functional Health-Related Quality of Life on Long-Term Survival After Cardiac Surgery. Circulation 2007; 115:692-9. [PMID: 17261660 DOI: 10.1161/circulationaha.106.640573] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background—
Health-related quality-of-life instruments have become important measures of early health outcomes after cardiac surgery. The relationship between quality of life after recovery from surgery and subsequent long-term survival has not previously been explored. Our objective was to determine whether the Duke Activity Status Index (DASI) was predictive of subsequent time-related survival after recovery from cardiac surgery.
Methods and Results—
We examined survival status among 6305 patients who underwent isolated coronary artery bypass grafting with or without valve procedures or isolated valve procedure between May 1995 and June 1998 who had a preoperative baseline and follow-up DASI. The postoperative DASI was administered nominally at 6 and 12 months. Baseline and perioperative variables and postoperative morbid events were prospectively collected concurrently with patient care. The end point was all-cause mortality. The Social Security Death Index was queried for survival status. Cox proportional-hazards analysis was used to study the associations between DASI, a number of traditional risk factors, and survival. Median follow-up was 8.6 years. The “dose-response” relationship between baseline and follow-up DASI and risk of long-term death was established. Follow-up DASI was associated with risk-adjusted long-term survival hazard ratio of 0.98 per unit increase (confidence limits, 0.97 to 0.98;
P
<0.0001). Achieving maximum baseline DASI was associated with better risk-adjusted long-term survival (hazard ratio, 0.64; confidence limits, 0.50 to 0.83;
P
=0.0005).
Conclusions—
Poor health-related quality of life after recovery from cardiac surgery identifies patients who are at risk for reduced long-term survival.
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Affiliation(s)
- Colleen Gorman Koch
- Department of Cardiothoracic Anesthesia, Cleveland Clinic, Cleveland, Ohio 44195, USA.
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Tossios P, Müller-Ehmsen J, Schmidt M, Scheid C, Ünal N, Moka D, Schwinger RHG, Mehlhorn U. No evidence of myocardial restoration following transplantation of mononuclear bone marrow cells in coronary bypass grafting surgery patients based upon cardiac SPECT and 18F-PET. BMC Med Imaging 2006; 6:7. [PMID: 16842625 PMCID: PMC1534013 DOI: 10.1186/1471-2342-6-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2006] [Accepted: 07/14/2006] [Indexed: 12/19/2022] Open
Abstract
Background We tested the hypothesis, that intramyocardial injection of mononuclear bone marrow cells combined with coronary artery bypass grafting (CABG) surgery improves tissue viability or function in infarct regions with non-viable myocardium as assessed by nuclear imaging techniques. Methods Thus far, 7 patients (60 ± 10 [SD] years) undergoing elective CABG surgery after a myocardial infarction were included in this study. Prior to sternotomy, bone marrow was harvested by sternal puncture. Mononuclear bone marrow cells were isolated by gradient centrifugation and resuspended in 2 ml volume of Hank's buffered salt solution. At the end of CABG surgery 10 injections of 0.2 ml each were applied to the core area and borderzones of the infarct. Global and regional perfusion and viability were evaluated by ECG-gated 99mTc-tetrofosmin myocardial single-photon emission computed tomograph (SPECT) imaging and 18F-fluorodeoxyglucose positron emission tomography (FDG-PET) in all study patients < 6 days before and 3 months after the intervention. Results Non-viable segments indicating transmural defects were identified in 5 patients. Two patients were found to have non-transmural defects before surgery. Concomitant surgical revascularisation and bone marrow cell injection was performed in all patients without major complications. The median total injected mononuclear cell number was 7.0 × 107 (range: 0.8–20.4). At 3 months 99mTc-tetrofosmin SPECT and 18F-FDG-PET scanning showed in 5 patients (transmural defect n = 4; non-transmural defect n = 1) no change in myocardial viability and in two patients (transmural defect n = 1, non-transmural defect n = 1) enhanced myocardial viability by 75%. Overall, global and regional LV ejection fraction was not significantly increased after surgery compared with the preoperative value. Conclusion In CABG surgery patients with non-viable segments the concurrent use of intramyocardial cell transfer did not show any clear improvement in tissue viability or function by means of non-invasive bioimaging techniques.
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Affiliation(s)
- Paschalis Tossios
- Department of Cardiothoracic Surgery, Berufsgenossenschaftliche Kliniken Bergmannsheil, Ruhr-University Bochum, Buerkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
- Department of Cardiothoracic Surgery, University of Cologne, Kerpener Str. 62, 50924 Cologne, Germany
| | | | - Matthias Schmidt
- Department of Nuclear Medicine, University of Cologne, Cologne, Germany
| | - Christof Scheid
- Department of Hematology, University of Cologne, Cologne, Germany
| | - Nermin Ünal
- Department of Cardiology, University of Cologne, Cologne, Germany
| | - Detlef Moka
- Department of Hematology, University of Cologne, Cologne, Germany
| | | | - Uwe Mehlhorn
- Department of Cardiothoracic Surgery, University of Cologne, Kerpener Str. 62, 50924 Cologne, Germany
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Hillis GS, Zehr KJ, Williams AW, Schaff HV, Orzulak TA, Daly RC, Mullany CJ, Rodeheffer RJ, Oh JK. Outcome of Patients With Low Ejection Fraction Undergoing Coronary Artery Bypass Grafting: Renal Function and Mortality After 3.8 Years. Circulation 2006; 114:I414-9. [PMID: 16820610 DOI: 10.1161/circulationaha.105.000661] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND There are few data regarding medium-term outcome of coronary artery bypass grafting (CABG) in patients with severe left ventricular (LV) systolic dysfunction, particularly in the modern era, and even less assessing preoperative factors that might identify patients at highest risk. METHODS AND RESULTS Three hundred seventy-nine consecutive patients with LV ejection fraction < or = 35%, who underwent isolated first CABG between 1995 and 1999 were studied. Potential preoperative and perioperative predictors of outcome were recorded and patients followed-up for a median of 3.8 years. The primary study end-point was all-cause mortality. The 30-day, 1-year, and 3-year survival rates were 94.5%, 88%, and 81%, respectively. The independent predictors of mortality were preoperative estimated glomerular filtration rate (hazard ratio [HR], 0.98; 95% confidence interval [CI], 0.97 to 0.99 per mL/min/1.73 m2; P<0.001) and age (HR, 1.03; 95% CI, 1.01 to 1.06 per year; P=0.005). CONCLUSIONS Patients with significant LV systolic dysfunction undergoing isolated CABG using contemporary techniques have a good medium-term survival. Renal dysfunction is the strongest independent predictor of mortality.
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Affiliation(s)
- Graham S Hillis
- Division of Cardiovascular Diseases, Mayo Clinic, 200 First Street SW, Rochester, Minnesota 55905, USA
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