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Lin CH, Chen YY, Yen YT, Kao PHJ, Chua CH, Chao HH, Lu MJ. Short-term and long-term outcomes of on-pump beating-heart coronary artery bypass surgery in dialysis and non-dialysis patients: a retrospective study in a single center. J Cardiothorac Surg 2024; 19:268. [PMID: 38689317 PMCID: PMC11059615 DOI: 10.1186/s13019-024-02662-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Accepted: 03/20/2024] [Indexed: 05/02/2024] Open
Abstract
BACKGROUND This study aimed to evaluate the short-term and long-term outcomes of dialysis and non-dialysis patients after On-pump beating-heart coronary artery bypass grafting (OPBH-CABG). METHODS We retrospectively reviewed medical records of 659 patients underwent OPBH-CABG at our hospital from 2009 to 2019, including 549 non-dialysis patients and 110 dialysis patients. Outcomes were in-hospital mortality, length of stay, surgical complications, post-CABG reintervention, and late mortality. The median follow-up was 3.88 years in non-dialysis patients and 2.24 years in dialysis patients. Propensity matching analysis was performed. RESULTS After 1:1 matching, dialysis patients had significantly longer length of stay (14 (11-18) vs. 12 (10-15), p = 0.016), higher rates of myocardial infarction (16.85% vs. 6.74%, p = 0.037) and late mortality (25.93% vs. 9.4%, p = 0.005) after CABG compared to non-dialysis patients. No significant differences were observed in in-hospital mortality, complications, or post-CABG reintervention rate between dialysis and non-dialysis groups. CONCLUSIONS OPBH-CABG could achieve comparable surgical mortality, surgical complication rates, and long-term revascularization in dialysis patients as those in non-dialysis patients. The results show that OPBH-CABG is a safe and effective surgical option for dialysis patients.
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Affiliation(s)
- Chia-Hsun Lin
- Division of Cardiovascular Surgery, Department of Surgery, Shin Kong Wu Ho-Su Memorial Hospital, No. 95 Wenchang Road, Shihlin District, Taipei City, 111045, Taiwan
- School of Medicine, Fu-Jen Catholic University, No. 510, Zhongzheng Rd., Xinzhuang Dist., New Taipei City, 242062, Taiwan
| | - Yen-Yang Chen
- Division of Cardiovascular Surgery, Department of Surgery, Shin Kong Wu Ho-Su Memorial Hospital, No. 95 Wenchang Road, Shihlin District, Taipei City, 111045, Taiwan
| | - Yu-Tong Yen
- Division of Cardiovascular Surgery, Department of Surgery, Shin Kong Wu Ho-Su Memorial Hospital, No. 95 Wenchang Road, Shihlin District, Taipei City, 111045, Taiwan
| | - Patrick Hung-Ju Kao
- Division of Cardiovascular Surgery, Department of Surgery, Shin Kong Wu Ho-Su Memorial Hospital, No. 95 Wenchang Road, Shihlin District, Taipei City, 111045, Taiwan
| | - Chai-Hock Chua
- Division of Cardiovascular Surgery, Department of Surgery, Shin Kong Wu Ho-Su Memorial Hospital, No. 95 Wenchang Road, Shihlin District, Taipei City, 111045, Taiwan
| | - Hung-Hsing Chao
- Division of Cardiovascular Surgery, Department of Surgery, Shin Kong Wu Ho-Su Memorial Hospital, No. 95 Wenchang Road, Shihlin District, Taipei City, 111045, Taiwan
| | - Ming-Jen Lu
- Division of Cardiovascular Surgery, Department of Surgery, Shin Kong Wu Ho-Su Memorial Hospital, No. 95 Wenchang Road, Shihlin District, Taipei City, 111045, Taiwan.
- School of Medicine, Fu-Jen Catholic University, No. 510, Zhongzheng Rd., Xinzhuang Dist., New Taipei City, 242062, Taiwan.
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Hwang B, Williams ML, Tian DH, Yan TD, Misfeld M. Coronary artery bypass surgery for acute coronary syndrome: A network meta-analysis of on-pump cardioplegic arrest, off-pump, and on-pump beating heart strategies. J Card Surg 2022; 37:5290-5299. [PMID: 36349729 PMCID: PMC10099567 DOI: 10.1111/jocs.17149] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 09/28/2022] [Indexed: 11/11/2022]
Abstract
BACKGROUND Coronary artery bypass grafting (CABG) in the setting of an acute coronary syndrome is a high-risk procedure, and the best strategy for myocardial revascularisation remains debated. This study compares the 30-day mortality benefit of on-pump CABG (ONCAB), off-pump CABG (OPCAB), and on-pump beating heart CABG (OnBHCAB) strategies. METHODS A systematic search of three electronic databases was conducted for studies comparing ONCAB with OPCAB or OnBHCAB in patients with acute coronary syndrome (ACS). The primary outcome, 30-day mortality, was compared using a Bayesian hierarchical network meta-analysis (NMA). A random effects consistency model was applied, and direct and indirect comparisons were made to determine the relative effectiveness of each strategy on postoperative outcomes. RESULTS One randomised controlled trial and eighteen observational studies fulfilling the inclusion criteria were identified. A total of 4320, 5559, and 1962 patients underwent ONCAB, OPCAB, and OnBHCAB respectively. NMA showed that OPCAB had the highest probability of ranking as the most effective treatment in terms of 30-day mortality (odds ratio [OR], 0.50; 95% credible interval [CrI], 0.23-1.00), followed by OnBHCAB (OR, 0.62; 95% CrI, 0.20-1.57), however the 95% CrI crossed or included unity. A subgroup NMA of nine studies assessing only acute myocardial infarction (AMI) patients demonstrated a 72% reduction in likelihood of 30-day mortality after OPCAB (CrI, 0.07-0.83). No significant increase in rate of stroke, renal dysfunction or length of intensive care unit stay was found for either strategy. CONCLUSIONS Although no single best surgical revascularisation approach in ACS patients was identified, the significant mortality benefit with OPCAB seen with AMI suggests high acuity patients may benefit most from avoiding further myocardial injury associated with cardiopulmonary bypass and cardioplegic arrest.
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Affiliation(s)
- Bridget Hwang
- School of Medicine, University of New South Wales, Sydney, Australia.,The Collaborative Research (CORE) Group, Macquarie University, Sydney, Australia
| | - Michael L Williams
- The Collaborative Research (CORE) Group, Macquarie University, Sydney, Australia.,Department of Cardiothoracic Surgery, Dunedin Hospital, Dunedin, New Zealand
| | - David H Tian
- The Collaborative Research (CORE) Group, Macquarie University, Sydney, Australia
| | - Tristan D Yan
- The Collaborative Research (CORE) Group, Macquarie University, Sydney, Australia.,Department of Cardiothoracic Surgery, Royal Prince Alfred Hospital, Sydney, Australia
| | - Martin Misfeld
- Department of Cardiothoracic Surgery, Royal Prince Alfred Hospital, Sydney, Australia
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On-pump beating heart versus off-pump myocardial revascularization-a propensity-matched comparison. Indian J Thorac Cardiovasc Surg 2021; 37:639-646. [PMID: 34776662 DOI: 10.1007/s12055-021-01209-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 04/29/2021] [Accepted: 05/02/2021] [Indexed: 10/20/2022] Open
Abstract
Objective On-pump beating heart (OP-BH) coronary artery bypass grafting (CABG) is often undertaken as an alternative between off-pump coronary artery bypass (OPCAB) and conventional on-pump coronary artery bypass grafting (On-pump CABG), especially in India. However, outcome data following OP-BH surgery is sparse. The aim of this study was to compare the outcomes of OP-BH CABG with OPCAB. Methods From our institutional database, all patients undergoing OP-BH CABG (n = 531) were identified. A propensity-matched cohort undergoing OPCAB (n = 531) was identified from the database. Nearest neighbor matching technique was used and the groups were matched for variables including age, gender, body mass index, EuroSCORE, history of recent myocardial infarction or unstable angina, hypertension, peripheral vascular disease, chronic obstructive airway disease, diabetes, pre-op renal impairment, pre-op neurological events, and left ventricular function. Results The propensity-matched groups were well matched in terms of baseline characteristics. The mean EuroSCORE was 3.17 and 3.20 in the OP-BH and the OPCAB groups. The unadjusted 30-day mortality in the propensity-matched OPCAB group was 2.07% (11/531) while mortality in the on-pump beating heart group was significantly higher at 6.9% (37/531). Multivariate analysis showed that OP-BH CABG was an independent risk factor for 30-day mortality as well as major adverse post-operative outcomes including renal, neurological, and respiratory outcomes and post-operative atrial fibrillation. Conclusions OP-BH CABG is associated with worse clinical outcomes compared to patients undergoing OPCAB.
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4
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Wang C, Jiang Y, Jiang X, Chen S. On-pump beating heart versus conventional on-pump coronary artery bypass grafting on clinical outcomes: a meta-analysis. J Thorac Dis 2021; 13:4169-4184. [PMID: 34422346 PMCID: PMC8339771 DOI: 10.21037/jtd-21-568] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 05/27/2021] [Indexed: 01/06/2023]
Abstract
Background A hybrid surgery method, on-pump beating heart coronary artery bypass graft (ON-BH CABG), is supposed to be a promising technology for coronary artery revascularization. Here, we conducted a comprehensive meta-analysis of the data derived from published studies on ON-BH CABG and conventional on-pump coronary artery bypass graft (C-CABG) to compare their short-term and long-term clinical outcomes. Methods We searched major electronic databases and 24 studies incorporating 6,862 patients (1,847 ON-BH CABG and 5,015 C-CABG) were included eventually, and 9 studies of them were focusing on high-risk patients. Results Compared with ON-BH CABG, C-CABG was associated with a higher risk in early mortality [odds ratio (OR), 1.45; 95% confidence interval (CI), 1.09 to 1.93; P=0.01], myocardial infarction (MI) (OR, 2.60; 95% CI, 1.41 to 4.78; P<0.01), low output syndrome (LOS) (OR, 2.56; 95% CI, 1.55 to 4.23; P<0.01), renal failure (OR, 1.84; 95% CI, 1.38 to 2.44; P<0.01). In contrast, there was no significant difference in long-term survival [hazard ratio (HR), 1.08; 95% CI, 0.81 to 1.43; P=0.60]. In systematic analysis of the studies in high-risk patients, ON-BH CABG showed a lower risk in terms of early mortality, intra-aortic balloon pump (IABP) usage, renal failure, hemodialysis, MI and pulmonary complication. No significant difference was observed in the long-term survival between ON-BH CABG and C-CABG. Conclusions With experienced and adept surgical team and mature ON-BH technology, ON-BH CABG may reduce the risk of postoperative death and complications in some patients. It might be an attractive alternative for high-risk patient populations.
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Affiliation(s)
- Chen Wang
- Department of Cardiovascular Surgery and Heart transplantation, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yefan Jiang
- Department of Cardiovascular Surgery and Heart transplantation, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xionggang Jiang
- Department of Cardiovascular Surgery and Heart transplantation, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Si Chen
- Department of Cardiovascular Surgery and Heart transplantation, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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5
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Jiang Y, Xu L, Liu Y, Deng B, Dong N, Chen S. Beating-heart on-pump coronary artery bypass grafting vs. off-pump coronary artery bypass grafting: a systematic review and meta-analysis. J Thorac Dis 2021; 13:4185-4194. [PMID: 34422347 PMCID: PMC8339796 DOI: 10.21037/jtd-21-268] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 06/04/2021] [Indexed: 11/29/2022]
Abstract
Background Beating-heart on-pump coronary artery bypass grafting (CABG), otherwise known as BH-ONCAB, can reduce myocardial injury by preserving native coronary blood flow while maintaining hemodynamic stability by the effective support of cardiopulmonary bypass (CPB). This study aimed to identify whether BH-ONCAB confers a survival, mortality, or morbidity benefit over off-pump CABG (OPCAB). Methods A systematic literature review identified 18 studies incorporating 5,615 patients (1,548 BH-ONCAB and 4,067 OPCAB cases) who satisfied the inclusion criteria. Outcome measures were meta-analyzed using random-effects modeling. Between-study heterogeneity was investigated through quality assessment and risk of bias analysis. Results The results demonstrated comparable early mortality and long-term survival between BH-ONCAB and OPCAB coronary revascularization with no significant statistical differences. The incidences of stroke, renal failure, blood loss, and arrhythmias were significantly higher in patients who underwent BH-ONCAB than patients who underwent OPCAB. However, BH-ONCAB conferred lower rates of incomplete revascularization and greater numbers of distal anastomoses. Conclusions BH-ONCAB is a safe and comparable alternative to OPCAB in terms of early mortality and late survival. BH-ONCAB may confer particular advantages in preventing incomplete revascularization and allowing more distal anastomoses compared to OPCAB. However, BH-ONCAB was associated with more postoperative complications due to the use of CPB. Future work should focus on larger matched studies and multicenter randomized controlled trials to optimize our surgical revascularization strategies.
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Affiliation(s)
- Yefan Jiang
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Li Xu
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuqi Liu
- The First Clinical College, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bowen Deng
- The First Clinical College, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Nianguo Dong
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Si Chen
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Louagie Y, Eucher P, Buche M, Scavée V, Gonzalez M, Broka S, Schoevaerdts JC. Beating Heart Surgery using the Octopus™ Tissue Stabilizers : Initial Experience including Triple Vessel Disease and high-risk Patients. Acta Chir Belg 2020. [DOI: 10.1080/00015458.2001.12098602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Y. Louagie
- Departments of Cardiovascular and Thoracic Surgery, Intensive Care Unit, Anesthesiology, Mont-Godinne University Hospital, Université Catholique de Louvain (U.C.L.) - Medical School
| | - P. Eucher
- Departments of Cardiovascular and Thoracic Surgery, Intensive Care Unit, Anesthesiology, Mont-Godinne University Hospital, Université Catholique de Louvain (U.C.L.) - Medical School
| | - M. Buche
- Departments of Cardiovascular and Thoracic Surgery, Intensive Care Unit, Anesthesiology, Mont-Godinne University Hospital, Université Catholique de Louvain (U.C.L.) - Medical School
| | - V. Scavée
- Departments of Cardiovascular and Thoracic Surgery, Intensive Care Unit, Anesthesiology, Mont-Godinne University Hospital, Université Catholique de Louvain (U.C.L.) - Medical School
| | - M. Gonzalez
- Departments of Cardiovascular and Thoracic Surgery, Intensive Care Unit, Anesthesiology, Mont-Godinne University Hospital, Université Catholique de Louvain (U.C.L.) - Medical School
| | - S. Broka
- Departments of Cardiovascular and Thoracic Surgery, Intensive Care Unit, Anesthesiology, Mont-Godinne University Hospital, Université Catholique de Louvain (U.C.L.) - Medical School
| | - J.-C. Schoevaerdts
- Departments of Cardiovascular and Thoracic Surgery, Intensive Care Unit, Anesthesiology, Mont-Godinne University Hospital, Université Catholique de Louvain (U.C.L.) - Medical School
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Dominici C, Salsano A, Nenna A, Spadaccio C, Mariscalco G, Santini F, Chello M. On-pump beating-heart coronary artery bypass grafting in high-risk patients: A systematic review and meta-analysis. J Card Surg 2020; 35:1958-1978. [PMID: 32643847 DOI: 10.1111/jocs.14780] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
BACKGROUND Operative technique for surgical myocardial revascularization in high-risk patients remains an argument of debate. On-pump coronary artery bypass graft (CABG) with cardioplegic arrest and off-pump CABG have intrinsic limitations. The hybrid approach of on-pump beating-heart CABG (OPBHC) has been proposed over the years with conflicting results. This systematic review and meta-analysis intends to summarize the contemporary literature. METHODS A literature search was conducted through major electronic databases. The systematic review provided a total of 279 articles, of those 17 studies were included in the present study. RESULTS Compared with on-pump CABG, OPBHC patients showed a preoperative higher risk profile but had reduced early mortality (risk ratio [RR], 0.59, 95% CI, 0.36-0.97) and reduced postoperative stroke (RR, 0.60, 95% CI, 0.39-0.91). Also, interesting trends towards reduced postoperative intra-aortic balloon pump use (RR, 0.56, 95% CI, 0.31-1.01) and myocardial infarction (RR, 0.48, 95% CI, 0.22-1.07) were observed. Baseline characteristics and postoperative complications were similar between OPBHC and off-pump CABG, but limited data are available. The risk of incomplete revascularization in OPBHC is lower than off-pump CABG (RR, 0.53, 95% CI, 0.33-0.87) but higher than conventional on-pump CABG (RR, 1.71, 95% CI, 1.23-2.39). CONCLUSION OPBHC is an effective technique to perform surgical revascularization in high-risk patients as preventing haemodynamic deterioration and guaranteeing adequate end-organ perfusion. OPBHC represents an alternative technique to on-pump and off-pump CABG, in those cases in which complications deriving from cardioplegic arrest or manipulation of the heart are more likely. For these reasons, OPBHC might be useful in patients with recent myocardial infarction or with left ventricular dysfunction.
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Affiliation(s)
- Carmelo Dominici
- Department of Cardiovascular Surgery, Università Campus Bio-Medico di Roma, Rome, Italy
| | - Antonio Salsano
- Department of Cardiac Surgery, University of Genoa, Genoa, Italy
| | - Antonio Nenna
- Department of Cardiovascular Surgery, Università Campus Bio-Medico di Roma, Rome, Italy
| | - Cristiano Spadaccio
- Department of Cardiac Surgery, Golden Jubilee National Hospital, Glasgow, UK
| | - Giovanni Mariscalco
- Department of Cardiac Surgery, Glenfield Hospital, University Hospitals of Leicester, Leicester, UK
| | | | - Massimo Chello
- Department of Cardiovascular Surgery, Università Campus Bio-Medico di Roma, Rome, Italy
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Sirgo J, Gil Ó, Campos E, Taylor J, Dalmau MJ, Juez M, García-Fuster R, Hornero F, Martínez-León J. Cirugía coronaria asistida con circulación extracorpórea sin pinzamiento aórtico en pacientes con disfunción ventricular severa: resultados a corto y medio plazo. CIRUGIA CARDIOVASCULAR 2020. [DOI: 10.1016/j.circv.2020.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Tariq K, Zia K, Mangi A, Amanullah M, Chaudry PA, Karim M. Conversion from Off to On-Pump Coronary Artery Bypass Grafting. Is it Avoidable? Cureus 2020; 12:e6791. [PMID: 32140350 PMCID: PMC7046009 DOI: 10.7759/cureus.6791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Background With the emergence of new technologies to stabilize the heart off-pump coronary artery bypass grafting (OPCAB), there is an increasing trend that is being observed throughout the world. In certain circumstances, OPCAB needs to be converted to on-pump CABG (ONCAB). In this study, we aim to identify certain risk factors mandating conversions and their associated short-term outcomes. Methods After approval from the institutional ethical review committee and exemption from informed consent, retrospective data of 100 patients meeting the inclusion criteria who underwent OPCAB operations at our institution from August 2018 to July 2019 were included. Preoperative, intraoperative, and postoperative variables were recorded and compared in conversion and non-conversion groups. This study was conducted at the National Institute of Cardiovascular Diseases, Karachi, Pakistan. Results A total of 100 patients were included in this study, out of which 82% (82) were male, with age ranging between 18 and 77 years with a mean age of 56.34 ± 8.3 years. In nine of the cases, OPCAB was emergently converted to ONCAB due to arrhythmias. In nine (9%) cases, off-pump CABG was emergently converted to on-pump CABG (ONCAB). Emergent conversion was due to arrhythmias in five cases, due to hypotension during OM graft in two cases, and due to hypotension during ramus graft for the remaining two cases. The emergent conversion was significantly associated with higher New York Heart Association (NYHA) functional classification and comorbid conditions such as chronic obstructive pulmonary disease (COPD). Conclusion Emergency conversion from off-pump to OPCAB is the most catastrophic event causing higher morbidity and mortality. Conversion rate was observed to be 9% with arrhythmias being the common cause and patients with higher NYHA status and COPD at baseline were found to be at increased risk of emergency conversion. Considering our results in patients with diagnosed COPD and higher NYHA status, the decision for off-pump CABG should be wisely taken carefully weighing the risks and benefits.
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Affiliation(s)
- Khuzaima Tariq
- Cardiac Surgery, National Institute of Cardiovascular Diseases, Karachi, PAK
| | - Kashif Zia
- Cardiac Surgery, National Institute of Cardiovascular Diseases, Karachi, PAK
| | - Ali Mangi
- Cardiac Surgery, National Institute of Cardiovascular Diseases, Karachi, PAK
| | - Muneer Amanullah
- Pediatric Cardiac Surgery, National Institute of Cardiovascular Disease, Karachi, PAK
| | - Pervaiz A Chaudry
- Cardiac Surgery, National Institute of Cardiovascular Diseases, Karachi, PAK
| | - Musa Karim
- Statistician, National Institute of Cardiovascular Diseases, Karachi, PAK
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Zhu MZ, Huq MM, Billah BM, Tran L, Reid CM, Varatharajah K, Rosenfeldt FL. On-Pump Beating Heart Versus Conventional Coronary Artery Bypass Grafting Early After Myocardial Infarction: A Propensity-Score Matched Analysis From the ANZSCTS Database. Heart Lung Circ 2019; 28:1267-1276. [DOI: 10.1016/j.hlc.2018.06.1051] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 06/25/2018] [Indexed: 10/28/2022]
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Singh SK, Kumar S, Prakash V, Devenraj V, Tewarson V. Intermittent on-pump beating-heart coronary artery bypass grafting-a safer option. Indian J Thorac Cardiovasc Surg 2019; 35:557-563. [PMID: 33061051 DOI: 10.1007/s12055-019-00821-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 03/17/2019] [Accepted: 03/19/2019] [Indexed: 10/26/2022] Open
Abstract
Purpose On-pump beating-heart coronary artery bypass grafting represents a merger of standard on and off-pump techniques and is thought to benefit patients by coupling the dual absence of cardioplegic arrest (conventional coronary surgery), with the hemodynamic instability during manipulation seen in off-pump surgery. However, the clinical benefits are still under discussion. We improvised on the standard on-pump beating-heart surgeries by introducing use of "intermittent" bypass as and when required. Methods This study involved 108 patients. "Intermittent" on-pump-beating heart coronary artery bypass grafting was done using suction stabilizer and placing aortic and venous cannula, electively in all patients (group 1) who were supported by pump intermittently (n = 54). Retrospective data of patients who underwent off-pump surgery electively by the same surgeon (group 2, n = 54) was collected. Results There was a significant advantage in the number of grafts performed for the lateral surface (circumflex branches) using the new technique compared to conventional technique (68vs22). Similarly, significant advantage was also noted in terms of total number of grafts along with shorter operating times. There were no mortalities in the new group compared to the off-pump group and blood loss was also lesser. Conclusions "Intermittent" on-pump coronary revascularization is a technically reliable method of coronary revascularization taking advantage of the off-pump and conventional on-pump techniques while considerably eliminating the disadvantages of both. It has shown its superiority in safety, number of grafts, blood loss, operating time and perioperative course.
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Affiliation(s)
- Sushil Kumar Singh
- Department of Cardiothoracic and Vascular surgery, King George's Medical University, Lucknow, Uttar Pradesh 226003 India
| | - Sarvesh Kumar
- Department of Cardiothoracic and Vascular surgery, King George's Medical University, Lucknow, Uttar Pradesh 226003 India
| | - Ved Prakash
- Department of Cardiothoracic and Vascular surgery, King George's Medical University, Lucknow, Uttar Pradesh 226003 India
| | - Vijayant Devenraj
- Department of Cardiothoracic and Vascular surgery, King George's Medical University, Lucknow, Uttar Pradesh 226003 India
| | - Vivek Tewarson
- Department of Cardiothoracic and Vascular surgery, King George's Medical University, Lucknow, Uttar Pradesh 226003 India
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12
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Tsutsumi K, Ishida O, Hashizume K, Inoue Y. Emergency surgery for left main disease: with and without cardioplegic arrest. Asian Cardiovasc Thorac Ann 2019; 27:157-162. [PMID: 30661379 DOI: 10.1177/0218492319826434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND The aims of this study were to evaluate the on-pump beating-heart technique of coronary artery bypass in patients with acute myocardial infarction and left main disease, and to retrospectively compare the early postoperative results with those of conventional on-pump arrested-heart coronary surgery. METHODS Eighty-five patients with acute myocardial infarction caused by left main disease, who underwent emergency surgery between January 1998 and April 2017 at Saiseikai Utsunomiya Hospital, were enrolled in this study. Of these patients, 56 were evaluated using propensity-matched analysis. The patients were divided into two groups according to the surgical procedure: group A ( n = 28) had on-pump surgery on the arrested heart, and group B ( n = 28) had on-pump surgery on the beating heart. Early postoperative results were compared between the two groups. RESULTS Preoperative and intraoperative characteristics showed no significant differences between the two groups. The peak creatine kinase myocardial band level was significantly lower in group B (group A 151 vs. group B 91 IU·L-1, p = 0.01). The early mortality rate was higher in group A than group B, but the difference was not significant (group A 28.6% vs. group B 17.9%, p = 0.53). CONCLUSIONS There was no significant advantage based on surgical procedure between on-pump beating-heart surgery and on-pump surgery on the arrested heart. On-pump beating-heart coronary artery bypass grafting significantly reduced the peak creatine kinase myocardial band level, but there were no significant differences in the early postoperative data, including the mortality rate and left ventricular function.
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Affiliation(s)
- Koji Tsutsumi
- 1 Division of Cardiovascular Surgery, Saiseikai Utsunomiya Hospital, Tochigi, Japan.,2 Department of Cardiovascular Surgery, National Defense Medical College, Saitama, Japan
| | - Osamu Ishida
- 2 Department of Cardiovascular Surgery, National Defense Medical College, Saitama, Japan
| | - Kenichi Hashizume
- 1 Division of Cardiovascular Surgery, Saiseikai Utsunomiya Hospital, Tochigi, Japan
| | - Yoshito Inoue
- 1 Division of Cardiovascular Surgery, Saiseikai Utsunomiya Hospital, Tochigi, Japan.,3 Division of Cardiovascular Surgery, Hiratsuka Municipal Hospital, Kanagawa, Japan
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13
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Kim HJ, Oh YN, Ju MH, Kim JB, Jung SH, Chung CH, Lee JW, Choo SJ. On-pump beating heart versus conventional coronary artery bypass grafting: comparative study on early and long-term clinical outcomes. J Thorac Dis 2018; 10:2656-2665. [PMID: 29997927 DOI: 10.21037/jtd.2018.05.14] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background We reviewed our experience with on-pump beating (OPB) heart coronary artery bypass grafting (CABG) to evaluate the impacts of obviating aortic cross-clamping and cardioplegic arrest on clinical outcomes compared with conventional CABG (C-CABG). Methods Between 2006 and 2012, elective isolated cardiopulmonary bypass (CPB)-assisted CABG was consecutively performed in 645 patients (mean patient age 63.3±9.1 years, 471 women) with 254 (39.4%) undergoing OPB-CABG and 391 (60.6%) undergoing C-CABG. The early and long-term clinical outcomes were compared between the two groups after adjusting for risk profiles through propensity score (PS) analyses. Results The OPB-CABG group presented significant morbidities more frequently than the C-CABG group, including severe chronic kidney disease (CKD) (P=0.026), severe chest pain (P<0.001), and poor left ventricular function (P<0.001). Early mortality occurred in 6 (2.4%) and 2 (0.5%) patients in the OPB- and C-CABG group, respectively (P=0.087). The number of distal anastomosis was comparable between the two groups (3.0±0.9 vs. 3.0±1.0, P=0.816). After PS matching, the incidence of major complications such as stroke (P>0.99) and new-onset dialysis (P=0.109) was comparable. During a median follow-up of 81.0 months (quartiles 1-3, 66.6-95.0 months), 118 patients died and the PS-matched models showed no significant between-group differences in the risk of overall death [hazard ratio (HR), 1.19; 95% confidence interval (CI), 0.72-1.95; P=0.507] and major adverse cardiac events (MACE) (HR, 1.49; 95% CI, 0.67-3.31; P=0.328). Conclusions The OPB strategy may be as safe and effective as the conventional strategy during CABG among patients with similar risk profiles. A prospective randomized trial is warranted to better ascertain the beneficial impact of OPB-CABG as both a viable and a durable alternative strategy to C-CABG.
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Affiliation(s)
- Ho Jin Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - You Na Oh
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Min Ho Ju
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Joon Bum Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Sung-Ho Jung
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Cheol Hyun Chung
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jae Won Lee
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Suk Jung Choo
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Rogers CA, Capoun R, Scott LJ, Taylor J, Jain A, Angelini GD, Narayan P, Suleiman MS, Sarkar K, Ascione R. Shortening cardioplegic arrest time in patients undergoing combined coronary and valve surgery: results from a multicentre randomized controlled trial: the SCAT trial. Eur J Cardiothorac Surg 2018; 52:288-296. [PMID: 28444178 PMCID: PMC5848808 DOI: 10.1093/ejcts/ezx087] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 02/26/2017] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES Combined coronary artery bypass grafting and valve surgery requires a prolonged period of cardioplegic arrest (CA) predisposing to myocardial injury and postoperative cardiac-specific complications. The aim of this trial was to reduce the CA time in patients undergoing combined coronary artery bypass grafting and valve surgery and assess if this was associated with less myocardial injury and related complications. METHODS Participants were randomized to (i) coronary artery bypass grafting performed on the beating heart with cardiopulmonary bypass support followed by CA for the valve procedure (hybrid) or (ii) both procedures under CA (conventional). To assess complications related to myocardial injury, we used the composite of death, myocardial infarction, arrhythmia, need for pacing or inotropes for >12 h. To assess myocardial injury, we used serial plasma troponin T and markers of metabolic stress in myocardial biopsies. RESULTS Hundred and sixty patients (80 hybrid and 80 conventional) were randomized. Mean age was 66.5 years and 74% were male. Valve procedures included aortic (61.8%) and mitral (33.1%) alone or in combination (5.1%). CA time was 16% lower in the hybrid group [median 98 vs 89 min, geometric mean ratio (GMR) 0.84, 95% confidence interval (CI) 0.77-0.93, P = 0.0004]. Complications related to myocardial injury occurred in 131/160 patients (64/80 conventional, 67/80 hybrid), odds ratio 1.24, 95% CI 0.54-2.86, P = 0.61. Release of troponin T was similar between groups (GMR 1.04, 95% CI 0.87-1.24, P = 0.68). Adenosine monophosphate was 28% lower in the hybrid group (GMR 0.72, 95% CI 0.51-1.02, P = 0.056). CONCLUSIONS The hybrid procedure reduced the CA time but myocardial injury outcomes were not superior to conventional approach. TRIAL REGISTRATION ISRCTN65770930.
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Affiliation(s)
- Chris A Rogers
- Clinical Trials and Evaluation Unit, School of Clinical Sciences, University of Bristol, Bristol, UK
| | - Radek Capoun
- Bristol Heart Institute, School of Clinical Sciences, University of Bristol, Bristol, UK
| | - Lauren J Scott
- Clinical Trials and Evaluation Unit, School of Clinical Sciences, University of Bristol, Bristol, UK
| | - Jodi Taylor
- Clinical Trials and Evaluation Unit, School of Clinical Sciences, University of Bristol, Bristol, UK
| | - Anil Jain
- SAL Hospital and Medical Institute, Ahmedabad, India
| | - Gianni D Angelini
- Bristol Heart Institute, School of Clinical Sciences, University of Bristol, Bristol, UK
| | - Pradeep Narayan
- Rabindranath Tagore International Institute of Cardiac Sciences (RTIICS), Kolkata, India
| | - M-Saadeh Suleiman
- Bristol Heart Institute, School of Clinical Sciences, University of Bristol, Bristol, UK
| | - Kunal Sarkar
- Rabindranath Tagore International Institute of Cardiac Sciences (RTIICS), Kolkata, India
| | - Raimondo Ascione
- Bristol Heart Institute, School of Clinical Sciences, University of Bristol, Bristol, UK
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Ayaon-Albarrán A, García-Bouza M, Ramchandani-Ramchandani B, Pérez-Camargo D, Cobiella-Carnicer J, Alswies A, Carnero-Alcázar M, Castañón-Cristóbal JL, Maroto Castellanos LC. Resultados de la cirugía coronaria sin circulación extracorpórea en el contexto del infarto agudo de miocardio. CIRUGIA CARDIOVASCULAR 2017. [DOI: 10.1016/j.circv.2016.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Ueki C, Sakaguchi G, Akimoto T, Ohashi Y, Sato H. On-pump beating-heart technique is associated with lower morbidity and mortality following coronary artery bypass grafting: a meta-analysis. Eur J Cardiothorac Surg 2016; 50:813-821. [DOI: 10.1093/ejcts/ezw129] [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: 10/12/2015] [Accepted: 03/08/2016] [Indexed: 01/30/2023] Open
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17
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Chaudhry UA, Harling L, Sepehripour AH, Stavridis G, Kokotsakis J, Ashrafian H, Athanasiou T. Beating-Heart Versus Conventional On-Pump Coronary Artery Bypass Grafting: A Meta-Analysis of Clinical Outcomes. Ann Thorac Surg 2015; 100:2251-60. [DOI: 10.1016/j.athoracsur.2015.05.057] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 05/03/2015] [Accepted: 05/14/2015] [Indexed: 11/25/2022]
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18
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A multidisciplinary approach to unplanned conversion from off-pump to on-pump beating heart coronary artery revascularization in patients with compromised left ventricular function. Crit Care Res Pract 2014; 2014:348021. [PMID: 25478216 PMCID: PMC4244953 DOI: 10.1155/2014/348021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 10/09/2014] [Accepted: 10/23/2014] [Indexed: 11/17/2022] Open
Abstract
Aim. To comparably assess the perioperative risk factors that differentiate off-pump coronary artery bypass (OPCAB) grafting cases from those sustaining unplanned conversion to on-pump beating heart (ONCAB/BH) approach, in patients with left ventricular ejection fraction (LVEF) < 40%. Methods. Perioperative variables were retrospectively assessed in 216 patients with LVEF < 40%, who underwent myocardial revascularization with OPCAB (n = 171) or ONCAB/BH (n = 45) approach. The study endpoints were operative mortality (30-day) and morbidity assessed by length of intensive care unit stay (LOS-ICU), using 2 days as cut-off point. Results. Poor LVEF, increased EuroSCORE II, acute presentation, congestive heart failure, cerebrovascular disease, perioperative renal impairment, clinical status deterioration upon admission and during ICU stay, acute myocardial infarction, and low cardiac output syndrome supported by inotropes and/or balloon-pump counterpulsation were significantly related to ONCAB/BH group (P < 0.05). EuroSCORE II (P = 0.01) and LVEF (P = 0.03) were the most powerful discriminative predictors of intraoperative conversion to ONCAB/BH. Operative mortality was 2.9% in OPCAB and 6.6% in ONCAB/BH group (P = 0.224), while 23.4% participants in OPCAB and 42.2% in ONCAB/BH approach had a LOS-ICU > 2 days (P = 0.007). Conclusions. Patients with LVEF < 40% undergoing ONCAB/BH are subjected to more preoperative comorbidities and implicated ICU stay than their OPCAB counterparts, which influences adversely short-term morbidity, while operative mortality remains unaffected.
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Lei Y, Gu T, Shi E, Wang C, Qin F. Myocardial protection and early outcome of different coronary surgical techniques for diabetic patients with triple vessels. Ann Saudi Med 2014; 34:375-82. [PMID: 25827693 PMCID: PMC6074552 DOI: 10.5144/0256-4947.2014.375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND AND OBJECTIVES For patients with diabetes and triple-vessel disease, coronary artery bypass grafting (CABG) surgery is a well-established procedure, but cardiopulmonary bypass support may also lead to severe complications to these patients. The aim of this study was to compare myocardial protection and early outcomes in patients with diabetes and triple-vessel disease following different coronary surgical techniques. DESIGN AND SETTINGS Prospective randomized trial of patients treated at the First Affiliated Hospital of China Medical University over a 3-year period (2011- 2013). METHODS In a single-center randomized trial, 668 patients with diabetes and triple-vessel disease were randomly assigned to off-pump (OPCAB) (number [n]=222), on-pump beating heart (OnP-BH) (n=223), and conventional CABG (OnP) (n=223) between January 2011 and October 2013. Myocardial injury was assessed by measuring the serial release of cardiac troponin I (cTnI) preoperatively, 1 hour, 12 hours, 24 hours, and 72 hours postoperatively. The early outcomes were compared among these 3 groups. RESULTS Preoperative characteristics of the patients in all 3 groups were similar. No significant difference was found regarding the number of anastomoses, the use of the internal thoracic artery, postoperative new-onset atrial fibrillation, hemodialysis, stroke, reoperation for bleeding, and infective complications in the 3 groups (P > .05). The complete revascularization, postoperative drainage loss, intra-aortic balloon pump support, blood requirements, postoperative myocardial infarction, pulmonary complications, gastrointestinal complications, inotropic requirements > 24 hours, ventilation > 24 hours, intensive care unit stay > 24 hours, and in-hospital stay > 7 days were significantly lower in the OPCAB group than in the other 2 groups (P < .05). In-hospital mortality was lower in the OPCAB group than in the other 2 groups, but no statistical difference was observed (P > .05). Preoperative cTnI in the 3 groups was similar (P > .05); however, the lowest cTnI value was noted in the OPCAB group, followed by the OnP group, and it was highest in the OnP-BH group 1 hour, 12 hours, 24 hours, and 72 hours postoperatively (P < .05). CONCLUSION OPCAB is superior to the OnP-BH and OnP techniques in terms of postoperative complications and myocardial protection in patients with diabetes and triple-vessel disease. Myocardial injury in the OnP-BH group was significantly higher than that in the OnP group.
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Affiliation(s)
| | - Tianxiang Gu
- Dr. Tianziang Gu, Department of Cardiac Surgery, China Medical University, First Affiliated Hospital, Shenyang, China, T: 86-24-83283455, F: 86-24-83283455,
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20
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Yu L, Gu T, Shi E, Wang C, Fang Q, Zhang Y, Lu C. On-pump with beating heart or cardioplegic arrest for emergency conversion to cardiopulmonary bypass during off-pump coronary artery bypass. Ann Saudi Med 2014; 34:314-9. [PMID: 25811204 PMCID: PMC6152560 DOI: 10.5144/0256-4947.2014.314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Intraoperative conversion, especially under emergent circumstances during off-pump coronary artery bypass (OPCAB), is associated with a significantly higher rate of hospital mortality. This study compared the clinical early outcomes of patients emergently converting to cardiopulmonary bypass (CPB) with or without cardioplegic arrest and evaluated the efficacy of an on-pump beating heart technique for these critically ill patients. DESIGN AND SETTING A retrospective study of patients treated at The First Affiliated Hospital of China Medical University over an 8-year period (2005 to 2013). PATIENTS AND METHODS Between January 2005 and September 2013, 104 patients were emergently converted to CPB during OPCAB. In the first 55 patients (53%), the cardioplegic arrest was performed. In the most recent 49 patients (47%), the on-pump beating heart procedure was used without cardioplegic arrest. RESULTS There were no significant differences in their baseline clinical characteristics, number of anastomoses performed per patient, and reasons for conversions (P > .05). A significant reduction occurred in the observed mortality between the cardioplegic arrest group and the on-pump beating heart group (25.6% vs 6.1%, P=.008). A statistical difference was found between the cardioplegic arrest group and the on-pump beating heart group in the time of CPB, peak cardiac troponin I, duration of inotropic support, time to extubation, intensive care unit stay, postoperative hospital stay, incidence of new intra-aortic balloon pump support, and pulmonary complications (P < .05). The incidence of blood requirements, postoperative myocardial infarction, new-onset atrial fibrillation, hemodialysis, stroke, infective complications, and resurgery for bleeding were lower in on-pump beating heart group, but the difference did not reach statistical significance (P > .05). CONCLUSION The on-pump beating heart technique is the preferred method of emergency conversion to CPB during OPCAB. It has lower postoperative mortality and morbidity than the cardioplegic arrest.
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Affiliation(s)
| | - Tianxiang Gu
- Tianxiang Gu, MD, PhD, Deparment of Cardiac Surgery, The First Affiliated Hospital, China Medical University, Nanjingbei Street 155#, Shenyang, China, 110001, T: 86-24-83283455,
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21
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Erkut B, Dag O, Kaygin MA, Senocak M, Limandal HK, Arslan U, Kiymaz A, Aydin A, Kahraman N, Calik ES. On-pump beating-heart versus conventional coronary artery bypass grafting for revascularization in patients with severe left ventricular dysfunction: early outcomes. Can J Surg 2014; 56:398-404. [PMID: 24284147 DOI: 10.1503/cjs.018412] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
BACKGROUND We sought to evaluate the effects of on-pump beating-heart versus conventional coronary artery bypass grafting techniques requiring cardioplegic arrest in patients with coronary artery disease with left ventricular dysfunction. METHODS We report the early outcomes associated with survival, morbidity and improvement of left ventricular function in patients with low ejection fraction who underwent coronary artery bypass grafting between August 2009 and June 2012. Patients were separated into 2 groups: group I underwent conventional coronary artery bypass grafting and group II underwent an on-pump beating-heart technique without cardioplegic arrest. RESULTS In all, 131 patients underwent coronary artery bypass grafting: 66 in group I and 65 in group II. Left ventricular ejection fraction was 26.6% ± 3.5% in group I and 27.7% ± 4.7% in group II. Left ventricular end diastolic diameter was 65.6 ± 3.6 mm in group I and 64.1 ± 3.2 mm in group II. There was a significant reduction in mortality in the conventional and on-pump beating-heart groups (p < 0.001). Perioperative myocardial infarction and low cardiac output syndrome were higher in group I than group II (both p < 0.05). Improvement of left ventricular function after the surgical procedure was better in group II than group I. CONCLUSION The on-pump beating-heart technique is the preferred method for myocardial revascularization in patients with left ventricular dysfunction. This technique may be an acceptable alternative to the conventional technique owing to lower postoperative mortality and morbidity.
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Affiliation(s)
- Bilgehan Erkut
- From the Department of Cardiovascular Surgery, Erzurum Training and Research Hospital, Erzurum, Turkey
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22
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Optimal coronary artery bypass grafting strategy for acute coronary syndrome. Gen Thorac Cardiovasc Surg 2013; 62:357-63. [PMID: 24357162 DOI: 10.1007/s11748-013-0358-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Accepted: 12/02/2013] [Indexed: 10/25/2022]
Abstract
OBJECTIVE Conventional coronary artery bypass grafting (CABG) using cardiopulmonary bypass and cardiac arrest is associated with higher mortality and morbidity rates in acute coronary syndrome (ACS) patients undergoing surgery. Although off-pump CABG (OPCAB) is beneficial for high-risk patients, its efficacy for ACS is unknown, with on-pump beating CABG an adjunctive method. We investigated the effects of OPCAB and on-pump beating CABG for ACS. METHODS We evaluated 121 consecutive patients with ACS (91 males, 30 females; mean age 69.5 ± 10.3 years) who underwent CABG since 2000. Seventy-five had unstable angina (UA) and 46 acute myocardial infarction (AMI) [non-ST elevation (NSTEMI): 22, ST elevation (STEMI): 24]. We assessed CABG for acute coronary syndrome under our primary OPCAB strategy, and compared perioperative status between UA and AMI patients. RESULTS (1) Sixty-five (87 %) with UA underwent OPCAB, 8 on-pump beating CABG, and 2 conventional CABG. Conversion from OPCAB was seen in 4 patients. In-hospital mortality was 1.3 %. (2) All UA patients who had intra-aortic balloon pumping (IABP) underwent OPCAB. No patients with preoperative IABP experienced conversion from OPCAB. (3) In AMI patients, hospital mortality was higher (8.9 %) and the ratios for OPCAB, on-pump beating CABG, and conventional CABG were 39, 57, and 4 %, respectively. Mortality was exclusively seen in patients with STEMI who underwent conventional CABG. CONCLUSIONS OPCAB might have beneficial effects for ACS patients with UA, while IABP was found essential for completing OPCAB. In AMI patients, on-pump beating CABG might be reasonable for avoiding conversion from OPCAB and ischemic perfusion injury.
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On-pump beating-heart coronary artery bypass provides efficacious short- and long-term outcomes in hemodialysis patients. Nephrol Dial Transplant 2011; 27:2059-65. [DOI: 10.1093/ndt/gfr536] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Narayan P, Rogers CA, Bayliss KM, Rahaman NC, Panayiotou N, Angelini GD, Ascione R. On-pump coronary surgery with and without cardioplegic arrest: comparison of inflammation, myocardial, cerebral and renal injury and early and late health outcome in a single-centre randomised controlled trial. Eur J Cardiothorac Surg 2011; 39:675-83. [PMID: 20884221 DOI: 10.1016/j.ejcts.2010.08.032] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2010] [Revised: 08/10/2010] [Accepted: 08/16/2010] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE To assess the safety and efficacy of on-pump beating heart coronary surgery on organ function, and early and late health outcome as compared with conventional technique. METHODS A total of 81 patients were randomised to (1) coronary surgery with cardiopulmonary bypass (CPB) and cardioplegic arrest (CA) (on-pump with CA, n=41) or to (2) CPB without CA (on-pump without CA, n=40). Primary outcomes included serial measurement of interleukins (IL-6, IL-8 and IL-10) for inflammation, troponin I for myocardial injury, protein S100 for cerebral injury and creatinine clearance (CrCl) and urinary N-acetyl-β-d-glucosaminidase (NAG) for renal injury. In-hospital health outcome and 5-year event-free survival were secondary outcomes. RESULTS Baseline and intra-operative characteristics were similar between groups. A marked release of ILs was observed in both groups, but no significant differences between the groups were found (IL-6 +9%, 95% confidence interval (CI) -15% to +39%, p=0.49; IL-8 +4%, 95% CI -34% to +63%, p=0.86; IL-10 -0.1%, 95% CI -19% to +21%, p=0.93). Troponin I rose in both groups and was on average 34% higher in the on-pump without CA group but this did not reach statistical significance (95% CI -0.4% to +87%, p=0.08). S100 protein was higher in the on-pump without CA group at 12h (p=0.04) but did not differ at other times (p=0.16). The level of CrCl was higher 1h in the on-pump without CA group (+23%, 95% CI +1% to +50%, p=0.04), but not thereafter. NAG release was similar in both groups (+1% 95% CI -23% to +33%, p=0.91). Early and 5-year health outcomes were similar. CONCLUSIONS On-pump without CA coronary surgery does not provide any obvious advantage when compared with the conventional technique of on-pump with CA in elective patients. Both techniques provide a comparable degree of inflammatory activation, myocardial, cerebral and renal injury with similar 5-year event-free survival.
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25
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Beating-heart coronary artery bypass surgery with the help of mini extracorporeal circulation for very high-risk patients. Perfusion 2011; 26:123-31. [DOI: 10.1177/0267659110395650] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background: Left ventricle dysfunction and co-morbidities are responsible for a large number of complications after coronary artery bypass graft (CABG) surgery. The best strategy for these patients, including the use or not and type of extracorporeal circulation (ECC), the use of minimized ECC (MECC), or conventional ECC (CECC), remains unclear. The aim of the present study was to investigate the potential effect of on-pump beating-heart (OPBH) surgery with the help of MECC for CABG in patients with a high-risk EuroSCORE and to compare this strategy to three other different procedures, including OPCAB and MECC or CECC with cardiac arrest. Methods: Patients were included if their EuroSCORE was strictly >" xbd="1427" xhg="1404" ybd="1477" yhg="1440"/>9. Four groups were retrospectively compared: an OPCAB, an OPBH, a MECC and a CECC group under cardiac arrest. Results: 214 patients, mean age 74.26 ± 8.5 years, 68.7% male, were operated. Mean EuroSCORE was 12.1 ± 2.9, left ventricular (LV) function 37.4 ± 12.3%, recent myocardial infarction (MI) 49.5%, renal failure 48.1%, chronic obstructive pulmonary disease (COPD) 42.2%, and peripheral vascular disease (PVD) 55.6%. Mean number of grafts per patient was 2.4 ± 0.7. Our study showed that it was possible, in very high-risk patients, to carry out revascularisation with OPBH similar to that using MECC or CECC under cardiac arrest (p=NS). This technique reduces troponin release (3.23 vs 6.56, p<0.01), postoperative myocardial complications (2% vs 8%, p<0.01), cardiotonic drug prescription (15.7% vs 31.3%, p<0.01), ventilation time (4.57H vs 6.48H, p<0.01) and length of stay (LOS) in ICU (2.16 vs 2.53, p=0.02). Conclusion: The OPBH method seems to be safe, secure and effective in this population of very high-risk patients, reducing early complications and multi-organ failure. OPBH surgery, combining MECC without aortic cross-clamping, makes it possible to perform complete revascularization and is an interesting alternative for CABG in high-risk patients.
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Darwazah AK, Bader V, Isleem I, Helwa K. Myocardial revascularization using on-pump beating heart among patients with left ventricular dysfunction. J Cardiothorac Surg 2010; 5:109. [PMID: 21067597 PMCID: PMC2993703 DOI: 10.1186/1749-8090-5-109] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2010] [Accepted: 11/10/2010] [Indexed: 11/20/2022] Open
Abstract
Objectives On-pump beating heart technique for myocardial revascularization has been used successfully among both low and high risk patients. Its application among low ejection fraction patients is limited. The aim of our study is to evaluate this technique among patients with low ejection fraction and to compare results with off-pump bypass technique. Methods This retrospective study includes 137 patients with ejection fraction below 0.35 who underwent isolated coronary artery bypass surgery. 39 patients underwent myocardial revascularization using on-pump beating heart (ONCAB/BH), while 98 patients had off-pump beating heart (OPCAB). Different preoperative, operative and postoperative variables were evaluated among both groups. Results Patients profiles and risk factors were similar among both groups, except for the number of patients undergoing redo CABG which was significantly higher among ONCAB/BH (13% vs 3%; p = 0.025). Ejection fraction (EF) varied from 10-34%. The mean EF for patients who underwent ONCAB/BH was 28 ± 6 in comparison to 26 ± 5 for OPCAB patients (P = 0.093). Predicted risk for surgery according to EuroSCORE was similar among both groups (P = 0.443). The number of grafts performed per patient was significantly more among patients who underwent ONCAB/BH (2.2 ± 0.7 Vs 1.7 ± 0.7; P = 0.002). Completeness of revascularization was significantly greater in the ONCAB/BH patients (72% Vs 46%, P = 0.015). The incidence of hospital mortality and combined major morbidity was more among ONCAB/BH in comparison to OPCAB, but the difference was not significant. However, the incidence of blood loss, ventricular arrythmias, inotropic support, ICU, hospital stay and blood transfusion were significantly greater among patients who underwent ONCAB/BH. Conclusions On-pump beating heart technique can be used in myocardial revascularization among patients with left ventricular dysfunction. The technique was found to be associated with better myocardial revascularization when compared with OPCAB technique. However, the incidence of morbidity and mortality was more than OPCAB.
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Affiliation(s)
- Ahmad K Darwazah
- Department of Cardiac Surgery, Makassed Hospital, Jerusalem, Israel.
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Rastan AJ, Thiele H, Schuler G, Mohr FW. Stellenwert der koronaren Bypass operation in der Therapie der akuten Koronarsyndrome. Herz 2010; 35:70-8. [DOI: 10.1007/s00059-010-3327-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Lin CY, Yang TL, Hong GJ, Li CY, Lin FY, Tsai CS. Enhanced Intracellular Heat Shock Protein 70 Expression of Leukocytes and Serum Interleukins Release: Comparison of On-pump and Off-pump Coronary Artery Surgery. World J Surg 2010; 34:675-81. [DOI: 10.1007/s00268-010-0419-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Darwazah AK, Sham'a RAHA, Isleem I, Hanbali B, Jaber B. Off-Pump Coronary Artery Bypass for Emergency Myocardial Revascularization. Asian Cardiovasc Thorac Ann 2009; 17:133-8. [DOI: 10.1177/0218492309103288] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Emergency coronary artery bypass is associated with increased operative mortality. The objective of this study was to evaluate the efficiency and safety of off-pump emergency coronary artery bypass, and to compare the outcome with that of the conventional on-pump procedure. Data of 79 patients who underwent emergency isolated coronary artery bypass were reviewed retrospectively; 45 had off-pump coronary bypass and 34 had conventional surgery. In the off-pump group, mean ejection fraction was significantly lower (28% ± 9% vs. 39% ± 10%), and there were fewer grafts per patient (1.8 ± 0.7 vs. 3.2 ± 0.8). Early mortality was higher in the conventional surgery group (14.7% vs. 8.9%), but late mortality was similar in both groups. Patients who had on-pump surgery had lower rates of recurrent angina (16% vs. 34%) and symptoms of heart failure (20% vs. 51%). Re-hospitalization was more common in off-pump patients, but cardiac re-interventions were similar. There was no significant difference in 5-year survival rates. The results of off-pump coronary bypass were better than the preoperative predicted EuroSCORE, thus it was concluded that patients treated on an emergency basis should have an off-pump revascularization procedure.
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Affiliation(s)
| | | | - Ismail Isleem
- Department of Cardiology, Makassed Hospital Jerusalem, Israel
| | - Basel Hanbali
- Department of Cardiology, Makassed Hospital Jerusalem, Israel
| | - Bashar Jaber
- Department of Cardiology, Makassed Hospital Jerusalem, Israel
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Bhattacharya K, Clugston A, Whalen H, Campanella C. Aortic valve replacement following coronary artery bypass grafting using bilateral internal mammary arteries. J Card Surg 2008; 23:795-6. [PMID: 19017018 DOI: 10.1111/j.1540-8191.2008.00671.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Aortic valve replacement in patients with a patent internal mammary artery grafts poses two main challenges: Sternal reentry and myocardial protection. Beating heart procedures have been well described in coronary and valve surgery. Herein, we describe a simple reproducible technique of aortic valve replacement that circumvents the main issues highlighted above.
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Affiliation(s)
- Kausik Bhattacharya
- Department of Cardiothoracic Surgery, Royal Infirmary of Edinburgh, Edinburgh, United Kingdom.
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31
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Ferrari E, Stalder N, von Segesser LK. On-pump beating heart coronary surgery for high risk patients requiring emergency multiple coronary artery bypass grafting. J Cardiothorac Surg 2008; 3:38. [PMID: 18597673 PMCID: PMC2474599 DOI: 10.1186/1749-8090-3-38] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2007] [Accepted: 07/02/2008] [Indexed: 11/10/2022] Open
Abstract
Background Cardiopulmonary bypass (CPB) with aortic cross-clamping and cardioplegic arrest remains the method of choice for patients requiring standard myocardial revascularization. Therefore, very high-risk patients presenting with acute coronary syndrome, unstable angina, onset of cardiac decompensation and requiring emergency multiple myocardial revascularization, can have a poor outcome. The on-pump beating heart technique can reduce the mortality and the morbidity in such a selected group of patients and this report describes our clinical experience. Methods Out of 290 patients operated for CABG from January 2005 to January 2006, 25 (8.6%) selected high-risk patients suffering from life threatening coronary syndrome (mean age 69 ± 7 years) and requiring emergency multiple myocardial revascularization, underwent on-pump beating heart surgery. The mean pre-operative left ventricle ejection fraction (LVEF) was 27 ± 8%. The majority of them (88%) suffered of tri-vessel coronary disease and 6 (24%) had a left main stump disease. Nine patients (35%) were on severe cardiac failure and seven among them (28%) received a pre-operative intra-aortic balloon pump. The pre-operative EuroScore rate was equal or above 8 in 18 patients (73%). Results All patients underwent on-pump-beating heart coronary revascularization. The mean number of graft/patient was 2.9 ± 0.6 and the internal mammary artery was used in 23 patients (92%). The mean CPB time was 84 ± 19 minutes. Two patients died during the recovery stay in the intensive care unit, and there were no postoperative myocardial infarctions between the survivors. Eight patients suffered of transitorily renal failure and 1 patient developed a sternal wound infection. The mean hospital stay was 12 ± 7 days. The follow-up was complete for all 23 patients survived at surgery and the mean follow-up time was 14 ± 5 months. One patient died during the follow-up for cardiac arrest and 2 patients required an implantable cardiac defibrillator. One year after surgery they all had a standard trans-thoracic echocardiogram showing a mean LVEF rate of 36 ± 11.8%. Conclusion Standard on-pump arrested heart coronary surgery has higher mortality and morbidity in emergencies. The on-pump beating heart myocardial revascularization seems to be a valid alternative for the restricted and selected cohort of patients suffering from life threatening coronary syndrome and requiring multiple emergency CABG.
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Affiliation(s)
- Enrico Ferrari
- Department of Cardiovascular Surgery, University Hospital of Lausanne, Lausanne, Switzerland.
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On-pump beating-heart coronary artery bypass grafting after acute myocardial infarction has lower mortality and morbidity. J Thorac Cardiovasc Surg 2008; 135:521-6. [DOI: 10.1016/j.jtcvs.2007.10.006] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2007] [Revised: 09/09/2007] [Accepted: 10/04/2007] [Indexed: 11/24/2022]
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Mizutani S, Matsuura A, Miyahara K, Eda T, Kawamura A, Yoshioka T, Yoshida K. On-Pump Beating-Heart Coronary Artery Bypass: A Propensity Matched Analysis. Ann Thorac Surg 2007; 83:1368-73. [PMID: 17383341 DOI: 10.1016/j.athoracsur.2006.11.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2006] [Revised: 11/02/2006] [Accepted: 11/03/2006] [Indexed: 10/23/2022]
Abstract
BACKGROUND It remains unclear how cardioplegic arrest affects surgical results after coronary artery bypass grafting surgery (CABG). This study compares early outcomes after on-pump beating-heart CABG and conventional CABG. METHODS From 2002 to 2005, 114 patients underwent on-pump beating-heart CABG. Multivariate logistic regression revealed five characteristics according to which technique is liable to be used: history of cerebral infarction, urgent or emergent operation, lower ejection fraction, preoperative creatine kinase, and lower number of diseased vessels. The early clinical outcome for these patients was compared against 114 conventional CABG patients, matched using a propensity score constructed with these five significant variables and with two nonsignificant variables: history of diabetes mellitus and hypertension. RESULTS On-pump beating-heart CABG significantly reduced the duration of operation and cardiopulmonary bypass, total blood loss, and peak creatine kinase (p < 0.05). The number of patients requiring additional intra-aortic balloon pump support was significantly lower in the on-pump beating-heart CABG group (2 versus 13, p < 0.01). No patients required percutaneous cardiopulmonary support after on-pump beating-heart CABG, whereas 4 patients needed it after conventional CABG. Complete revascularization was significantly lower (42.1% versus 77.2%, p < 0.0001), but in-hospital mortality was less in the on-pump beating-heart CABG group (2.6% versus 9.6%, p < 0.05). No significant difference was found in morbidity including stroke, renal failure, mediastinitis, and prolonged ventilation. CONCLUSIONS On-pump beating-heart CABG can be performed safely, including on high-risk patients. Use of cardiopulmonary bypass and the elimination of cardioplegic arrest may be of most benefit to hemodynamically unstable patients.
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Affiliation(s)
- Shinichi Mizutani
- Division of Cardiovascular Surgery, Aichi Cardiovascular and Respiratory Center, Ichinomiya, Aichi, Japan.
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Warang M, Waradkar A, Patwardhan A, Agrawal N, Kane D, Parulkar G, Khandeparkar J. Metabolic changes and clinical outcomes in patients undergoing on and off pump coronary artery bypass surgery. Indian J Thorac Cardiovasc Surg 2007. [DOI: 10.1007/s12055-007-0003-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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Glauber M, Farneti A, Bevilacqua S, Karimov J. Pump-assisted beating heart surgery. Multimed Man Cardiothorac Surg 2007; 2007:mmcts.2004.000943. [PMID: 24413881 DOI: 10.1510/mmcts.2004.000943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Presentation of the revascularization of ischemized myocardium: beating heart technique using pump-assisted extracorporeal circulation. Main technique of revascularization is presented with highlights of modern mini extracorporeal circulation and beating heart surgery devices. Clinical physiological aspects of the method are described and bibliographical data provided.
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Affiliation(s)
- Mattia Glauber
- CNR Institute of Clinical Physiology 'G. Pasquinucci' Hospital, Via Aurelia Sud, 54100 Massa, Italy
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Chen Y, Almeida AA, Goldstein J, Shardey GC, Pick AW, Moshinsky R, Kejriwal NK, Lowe C, Jolley D, Smith JA. URGENT AND EMERGENCY CORONARY ARTERY BYPASS GRAFTING FOR ACUTE CORONARY SYNDROMES. ANZ J Surg 2006; 76:769-73. [PMID: 16922894 DOI: 10.1111/j.1445-2197.2006.03864.x] [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
BACKGROUND Urgent and emergency coronary artery bypass grafting may be associated with significant mortality and morbidity. We report our recent experience with this group of patients. METHODS A retrospective analysis of 441 patients undergoing urgent and emergency surgery over a 3-year period was carried out. Multivariate analysis was used to identify subgroups of patients who were most at risk of death. RESULTS The 30-day mortality was 3.3 and 16.3% in the urgent and emergency groups, respectively. Urgent surgery was associated with significantly shorter duration of ventilation (16 h vs 69 h) and stay at the intensive care unit (31 h vs 102 h). The incidence of pneumonia, pulmonary embolism, renal failure and neurological events were also less in the urgent group. The preoperative use of the intra-aortic balloon pump was low (0.8% in the urgent group and 4.8% in the emergency group). Multivariate analysis showed that patients over 70 years of age (odds ratio 3.2, 95% confidence interval 1.1-9.5) with left main stenosis (odds ratio 4.4, 95% confidence interval 1.5-12.4) complicated by cardiogenic shock (odds ratio 17.8, 95% confidence interval 5.2-61.1) were at highest risk of death. Patients transferred directly to theatre from cardiac catheter laboratory following failed percutaneous interventions were found to be most at risk. Mortality in this group was 29%, with 50% patients being in shock and 36% having left main stenosis. CONCLUSION Satisfactory results have been obtained in urgent coronary artery bypass grafting, but acute coronary syndromes complicated by cardiogenic shock remain a high-risk group. Further studies are needed to define the optimal operative management in this group of patients.
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Affiliation(s)
- Yi Chen
- Cardiothoracic Surgery Unit, Monah Medical Centre, Clayton, Victoria, Australia
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37
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Izumi Y, Magishi K, Ishikawa N, Kimura F. On-pump beating-heart coronary artery bypass grafting for acute myocardial infarction. Ann Thorac Surg 2006; 81:573-6. [PMID: 16427854 DOI: 10.1016/j.athoracsur.2005.08.036] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2005] [Revised: 08/14/2005] [Accepted: 08/23/2005] [Indexed: 11/30/2022]
Abstract
BACKGROUND The early results of emergent coronary artery bypass grafting by conventional operative method for acute myocardial infarction are reported to be poor. The purpose of this study is to evaluate on-pump beating-heart coronary artery bypass grafting for acute myocardial infarction. METHODS Thirty-one patients with acute myocardial infarction underwent emergent surgery between January 1998 and June 2004 at Nayoro City General Hospital. In 16 patients, on-pump surgery was performed on the arrested heart, and in the other 15, on-pump surgery was performed on the beating heart. Early results were compared between the two groups. RESULTS Preoperative and perioperative patient characteristics revealed no significant differences between the two groups. Although there was no statistically difference between the two groups, the early mortality rates of on-pump arrested-heart coronary bypass grafting (31.3%) was higher than that of on-pump beating-heart coronary bypass grafting (13.3%). Postoperatively, the creatine kinase myocardial band value for the on-pump beating-heart group was significantly lower than that for the on-pump arrested-heart group (221 +/- 200 IU/L versus 666 +/- 540 IU/L, p = 0.008). The incidence of postoperative acute renal failure was significantly higher in the on-pump arrested-heart group than in the on-pump beating-heart group (p = 0.034). The durations of ventilator use and inotropic agent use were longer in the on-pump arrested-heart group than in the on-pump beating-heart group, though the differences were not statistically different (p = 0.152, p = 0.223). CONCLUSIONS On-pump beating-heart coronary artery bypass grafting has the possibility to eliminate intraoperative global myocardial ischemia and to be an acceptable surgical option for acute myocardial infarction associated with lower postoperative mortality and morbidity.
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Affiliation(s)
- Yuichi Izumi
- Department of Thoracic and Cardiovascular Surgery, Nayoro City General Hospital, Nayoro, Hokkaido, Japan.
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Dewey TM, Herbert MA, Prince SL, Robbins CL, Worley CM, Magee MJ, Mack MJ. Does Coronary Artery Bypass Graft Surgery Improve Survival Among Patients With End-Stage Renal Disease? Ann Thorac Surg 2006; 81:591-8; discussion 598. [PMID: 16427858 DOI: 10.1016/j.athoracsur.2005.08.048] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2003] [Revised: 08/22/2005] [Accepted: 08/25/2005] [Indexed: 11/20/2022]
Abstract
BACKGROUND Cardiovascular disease remains the most frequent cause of death for patients with end-stage renal disease. To determine the long-term benefit of surgical revascularization in this high-risk population, we studied our patients with ESRD having coronary artery bypass graft surgery (CABG), comparing the results of off-pump to on-pump revascularization. As a baseline reference group, we used dialysis patients with a diagnosis of coronary artery disease who did not have surgical revascularization or percutaneous coronary interventions. The control group data set was obtained from the United States Renal Data System. METHODS From January 1995 through July 2003, 158 patients with end-stage renal disease who were on hemodialysis (excluding those in cardiogenic shock, needing resuscitation, and with emergent or salvage status) underwent CABG. Fifty-nine patients (37.3%) had off-pump revascularization, and 99 patients (62.7%) had bypass grafting utilizing extracorporeal circulation. Preoperative risk factors and operative results were analyzed, and longitudinal survival data obtained. RESULTS The mean follow-up time was 39.1 months (median, 33.1) for the on-pump patients and 18.3 months (median, 14.7) for off-pump. The total number of anastomoses per off-pump patient was 2.4 +/- 1.0, and with cardiopulmonary bypass (CPB), it was 3.3 +/- 0.9 (p < 0.001). Patients revascularized off-pump had an operative mortality rate of 1.7%, whereas patients grafted using CPB had an operative mortality of 17.2% (p = 0.003). The predicted risk of mortality for the off-pump group (9.3% +/- 7.4%) was not statistically different from the on-pump cohort (9.1% +/- 7.7%, p = not significant). Logistic regression analysis indicates that CPB use was an independent risk factor for early death (p = 0.01, odds ratio = 13.6, 95% confidence interval: 1.7 to 110). Long-term follow-up demonstrated that the patients revascularized using CPB had improved survival compared with the off-pump patients and the control population. CONCLUSIONS Off-pump CABG improves early mortality rate when compared with conventional revascularization. Despite a greater operative mortality, however, long-term survival is improved in the patients revascularized with CPB as compared with the off-pump cohort, suggesting possible advantages from a more complete revascularization in this population.
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Affiliation(s)
- Todd M Dewey
- Cardiopulmonary Research Science and Technology Institute, Dallas, Texas, USA.
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Buffolo E, Branco JNR, Gerola LR, Aguiar LF, Teles CA, Palma JH, Catani R. Off-Pump Myocardial Revascularization: Critical Analysis of 23 Years’ Experience in 3,866 Patients. Ann Thorac Surg 2006; 81:85-9. [PMID: 16368342 DOI: 10.1016/j.athoracsur.2005.07.032] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2005] [Revised: 07/07/2005] [Accepted: 07/12/2005] [Indexed: 11/18/2022]
Abstract
BACKGROUND Surgical myocardial revascularization without cardiopulmonary bypass (CPB) is not new, with the first consecutive series of patients appearing in the early eighties. There has been increased interest in this alternative approach, especially in patients with comorbidities. There is controversy regarding advantages, risks, and usefulness of this method of myocardial revascularization. We herein report a consecutive series of 3,866 patients, from the first case in September 1981 to the last in November 2004, analyzing applicability, mortality, morbidity, and surgical technique. METHODS From September 1981 to November 2004, 3,866 consecutive patients were revascularized without CPB. This figure represents an overall applicability of 30.8% considering a total of 12,553 revascularization procedures performed during this time. There were 2,822 males (73%) with ages from 12 to 93 years (median, 62 +/- 14). Mean grafts per patient was 1.9, and the internal mammary artery was used in 87.3% of cases. The main indications for surgery were chronic coronary insufficiency (89% of cases) and failure of angioplasty or stenting. RESULTS Hospital mortality was 1.9%, with low incidence of cerebrovascular accident (5 cases in the entire series). Morbidity, considering major postoperative complications, occurred in 12.5% of the patients. The applicability of the off-pump technique was 18% of cases in the beginning of our experience, increasing to 49% in the last 5 years with the use of stabilizers and maneuvers to expose posterior coronary branches. CONCLUSIONS Off-pump coronary surgery is an alternative method of myocardial revascularization that should be considered for every patient. The preference of this technique over conventional revascularization should be based on the surgeon's own experience, on the patient's preoperative condition and on the coronary anatomy. Off-pump myocardial revascularization represents an important development in coronary artery surgery. Over the years it has evolved into a valid form of surgery with the same safety as the conventional operation and with more advantages in high risk patients.
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Affiliation(s)
- Enio Buffolo
- Department of Cardiovascular Surgery, Paulista School of Medicine, Federal University of São Paulo, São Paulo, Brazil.
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Gulcan O, Turkoz R, Turkoz A, Caliskan E, Sezgin AT. On-Pump/Beating-Heart Myocardial Protection for Isolated or Combined Coronary Artery Bypass Grafting in Patients with Severe Left Ventricle Dysfunction: Assessment of Myocardial Function and Clinical Outcome. Heart Surg Forum 2005; 8:E178-82; discussion E183. [PMID: 15937002 DOI: 10.1532/hsf98.20041166] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Myocardial protection in coronary artery bypass grafting (CABG) with severe left ventricular (LV) dysfunction is still a surgical dilemma. Preoperative myocardial infarction (MI) and postoperative low output syndrome are serious complications in cases of inadequate protection of the heart, which has limited myocardial reserve. The aim of this study was to evaluate myocardial function and clinical outcome after on-pump/beating-heart CABG in patients with severe LV dysfunction. METHODS Between March 2001 and March 2004, clinical, operative, and postoperative data were prospectively collected from patients with LV ejection fraction (EF) < 30% who underwent on-pump/beating-heart CABG and associated procedures. RESULTS There were 46 patients and the mean patient age was 58.38 +/- 9.23. The mean EF was 25.6 +/- 2.8%. Operating time was 275 +/- 63 minutes. The frequency of distal anastomosis was 3.06 +/- 1.04. Twenty-four patients required aneurysmectomy in addition to CABG, and 2 of the 24 required mitral repairs. Inotropic support was required in 14 patients (30%) and 5 of them (10.9%) also required IABP. The LV EF improved significantly after the operation when compared to preoperative measurements (25.6 +/- 2.8 versus 33.64 +/- 4.69, P < .05). Hospital mortality rate was 4.3% (2 of the 46 patients). No mortality was observed at a mean followup of 16 months after discharge from the hospital. CONCLUSIONS On-pump/beating-heart CABG technique is effective in protecting myocardial functions in patients with severe LV dysfunction. The main advantage of the on-pump/beating-heart technique is the ability it provides one to perform complete revascularization, and intracavitary procedures with low morbidity and mortality even in impaired LV function.
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Affiliation(s)
- Oner Gulcan
- Department of Cardiovascular Surgery, Adana Teaching and Medical Research Center, Baskent University, Adana, Turkey.
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Kerendi F, Puskas JD, Craver JM, Cooper WA, Jones EL, Lattouf OM, Vega JD, Guyton RA. Emergency Coronary Artery Bypass Grafting Can Be Performed Safely Without Cardiopulmonary Bypass in Selected Patients. Ann Thorac Surg 2005; 79:801-6. [PMID: 15734381 DOI: 10.1016/j.athoracsur.2004.08.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/04/2004] [Indexed: 11/30/2022]
Abstract
BACKGROUND Patients requiring emergency surgical revascularization are often not considered for off-pump coronary artery bypass grafting (OPCAB). METHODS From 1996 to 2003, 614 patients underwent emergency coronary artery bypass grafting (Society of Thoracic Surgeons definition) at an academic institution. Forty-four (7%) of these procedures were performed without cardiopulmonary bypass, while 570 were conventional coronary artery bypass procedures with cardiopulmonary bypass (CABG/CPB). Data were collected prospectively into a computerized database and reviewed retrospectively. RESULTS Though a greater proportion of CABG/CPB patients had critical left main stenosis (15.9% vs 38.3%, p = 0.005), other preoperative risk factors were similar between groups. Completeness of revascularization (No. distal anastomoses/No. diseased vessel systems) was significantly greater in the CABG/CPB group (1.51 +/- 0.03 vs 1.25 +/- 0.07, p = 0.003). There were no differences among individual complication rates (death, cardiac reoperation, postoperative myocardial infarction, permanent cerebral vascular accident, deep sternal wound infection, renal failure requiring hemodialysis, and respiratory failure requiring reintubation). However, the combined incidence of these endpoints was significantly lower in the OPCAB group (6.8% vs 21.1%, p = 0.038). OPCAB patients received fewer blood transfusions (65.9% vs 84.9%, p = 0.004) and had a significantly shorter intensive care unit stay (1.47 vs 3.20 days, p = 0.016). In-hospital mortality (0% vs 6.3%, p = 0.168) and mean postoperative length of stay (5.48 vs 7.03 days, p = 0.414) favored OPCAB, but did not reach statistical significance. CONCLUSIONS Off-pump coronary artery bypass can be performed safely and effectively and should be considered in selected patients with acceptable hemodynamics undergoing emergency coronary revascularization.
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Affiliation(s)
- Faraz Kerendi
- Division of Cardiothoracic Surgery, Emory University School of Medicine, Atlanta, Georgia, USA
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Wan IYP, Arifi AA, Wan S, Yip JHY, Sihoe ADL, Thung KH, Wong EMC, Yim APC. Beating heart revascularization with or without cardiopulmonary bypass: evaluation of inflammatory response in a prospective randomized study. J Thorac Cardiovasc Surg 2004; 127:1624-31. [PMID: 15173716 DOI: 10.1016/j.jtcvs.2003.10.043] [Citation(s) in RCA: 96] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE On-pump beating heart coronary artery surgery provides the opportunity to examine the isolated effect of cardiopulmonary bypass. This prospective randomized study compares the early clinical outcomes and inflammatory response of patients undergoing elective on-pump and off-pump beating heart coronary artery bypass grafting. METHOD AND PATIENTS Thirty-seven consecutive patients undergoing elective coronary artery bypass grafting were recruited from a pool of 73 patients, with 19 patients randomized to on-pump beating heart surgery and 18 patients to off-pump coronary bypass surgery. Intraoperative events and postoperative outcomes were recorded. Plasma levels of interleukin-6, interleukin-8, and interleukin-10, tumor necrosis factor-alpha, and vascular cell adhesion molecule-1 were measured before the operation, intraoperatively, after the operation, and 4, 24, and 48 hours thereafter. RESULTS There was no significant difference in clinical outcomes between the 2 groups. The operating time was longer and consumption of platelets was greater for the on-pump beating heart group. There was no postoperative mortality or major complication in either group. There was significant elevation in the levels of interleukin-6, interleukin-8, and interleukin-10 and tumor necrosis factor-alpha during and immediately after the operations in the on-pump beating heart group when compared with the off-pump group. Levels of interleukin-8 (P =.01) and tumor necrosis factor-alpha (P =.0004) remained significantly elevated 4 hours after the operation in the on-pump beating heart group. The level of vascular adhesion molecule dropped significantly during the operation but was elevated 4 hours (P =.026) after the operation in the on-pump beating heart group. CONCLUSION The use of cardiopulmonary bypass alone without global myocardial ischemia secondary to aortic crossclamping and cardioplegic cardiac arrest can trigger intense inflammatory responses.
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Affiliation(s)
- Innes Y P Wan
- Division of Cardiothoracic Surgery, Department of Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong SAR, China
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Prifti E, Bonacchi M, Giunti G, Frati G, Leacche M, Bartolozzi F. Beating heart ischemic mitral valve repair and coronary revascularization in patients with impaired left ventricular function. J Card Surg 2003; 18:375-83. [PMID: 12974921 DOI: 10.1046/j.1540-8191.2003.t01-1-02044.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE The aim of this study is to evaluate in a cohort of patients with impaired left ventricular (LV) function and ischemic mitral valve regurgitation (MVR), the effects of on-pump/beating heart versus conventional surgery in terms of postoperative mortality and morbidity and LV function improvement. MATERIALS AND METHODS Between January 1993 and February 2001, 91 patients with LVEF between 17% and 35% and chronic ischemic MVR (grade III-IV), underwent MV repair in concomitance with coronary artery bypass grafting (CABG) Sixty-one patients (Group I) underwent cardiac surgery with cardioplegic arrest, and 30 patients (Group II) underwent beating heart combined surgery. Aortic valve insufficiency was considered a contraindication for the on-pump/beating heart procedure. Mean age in Group I was 64.4 +/- 7 years and in Group II, 65 +/- 6 years (p = 0.69). RESULTS The in-hospital mortality in Group I was 8 (13%) patients versus 2 (7%) patients in Group II (p > 0.1). The cardiopulmonary bypass (CPB) time was significantly higher in Group I (p < 0.001). In Groups I and II, respectively (p > 0.1), 2.5 +/- 1 and 2.7 +/- 0.8 grafts per patient were employed. Perioperative complications were identified in 37 (60.7%) patients in Group I versus 10 (33%) patients in Group II (p = 0.025). Prolonged inotropic support of greater than 24 hours was needed in 48 (78.7%) patients (Group I) versus 15 (50%) patients (Group II) (p = 0.008). Postoperative IABP and low cardiac output incidence were significantly higher in Group I, p = 0.03 and p = 0.027, respectively. Postoperative bleeding greater than 1000 mL was identified in 24 patients (39.4%) in Group I versus 5 (16.7%) in Group II (p = 0.033). Renal dysfunction incidence was 65.6% (40 patients) in Group I versus 36.7% (11 patients) in Group II (p = 0.013). The echocardiographic examination within six postoperative months revealed a significant improvement of MV regurgitation fraction, LV function, and reduced dimensions in both groups. The postoperative RF was significantly lower in Group II patients 12 +/- 6 (%) versus 16 +/- 5.6 (%) in Group I (p = 0.001). The 1, 2, and 3 years actuarial survival including all deaths was 91.3%, 84.2%, and 70% in Group I and 93.3%, 87.1%, and 75% in Group II (p = ns). NYHA FC improved significantly in all patients from both groups. CONCLUSION We conclude that patients with impaired LV function and ischemic MVR may undergo combined surgery with acceptable mortality and morbidity. The on/pump beating heart MV repair simultaneous to CABG offers an acceptable postoperative outcome in selected patients.
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Affiliation(s)
- Edvin Prifti
- Division of Cardiac Surgery, Careggi Hospital, Viale Morgagni 85, 50134 Careggi, Florence, Italy.
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Christenson JT, Licker M, Kalangos A. The role of intra-aortic counterpulsation in high-risk OPCAB surgery: a prospective randomized study. J Card Surg 2003; 18:286-94. [PMID: 12869172 DOI: 10.1046/j.1540-8191.2003.02030.x] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND High-risk patients would benefit the most of OPCAB revascularization. This prospective and randomized study evaluates the efficacy and safety of pre- and perioperative IABC in high-risk OPCAB. MATERIAL Group A-IABC started prior to induction of anesthesia (n = 15); group B-no preoperative IABC (n = 15). Adult high-risk coronary patients to undergo OPCAB. High risk = (minimum 2) EF < 0.30, left main stenosis, unstable angina, redo. Bailout if hemodynamic instability CPB or IABC in group B. Study endpoints (a) cardiac protection (troponin 1, cardiac index (CI), ECG), (b) inflammatory response (lactate, IL-6), (c) clinical outcome (mortality, morbidity). Emergency operations 33%, re-operation 13%, unstable angina 100%, left main 60% and EF 0.29, without group differences. RESULTS No bailout group A, 10 in group B, p < 0.0001. Postoperative IABC six (group A) and seven patients (group B), during 6.8 +/- 5.1 hours (group A) versus 41.2 +/- 25.5 hours (group B), p = 0.0110. Myocardial protection without group differences, but CI significantly better in group A. Inflammatory response significantly less in group A. CLINICAL OUTCOMES: one death, one MI and two renal failure in group B, none in group A. Intensive care unit (ICU) stay 27 +/- 3 hours (group A) versus 65 +/- 28 hours (group B), p = 0.0017. LOS 8 +/- 2 days (group A) versus 15 +/- 10 (group B), p = 0.0351. No IABC related complications. CONCLUSIONS Pre- and perioperative IABC therapy offers efficient hemodynamic support during high-risk OPCAB surgery, lowers the risk of hemodynamic instability, is safe and shortens both ICU and hospital length of stay significantly, and is a cost-effective therapy.
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Affiliation(s)
- Jan T Christenson
- Clinic for Cardiovascular Surgery, University Hospital, Geneva, Switzerland.
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Friedman SG, Safa T, Nussbaum T, Pogo G, Levy M. Combined off-pump coronary artery bypass and abdominal aortic surgery is associated with low morbidity and mortality. Ann Vasc Surg 2003; 17:162-4. [PMID: 12616355 DOI: 10.1007/s10016-001-0306-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Patients with abdominal aortic aneurysms (AAAs) often have concomitant coronary artery disease. In patients with large or symptomatic AAAs and symptomatic coronary artery disease, it may be necessary to address both problems simultaneously. We report a case series of five patients undergoing simultaneous off-pump coronary artery bypass and abdominal aortic reconstruction. Our series and a literature review indicate that simultaneous coronary artery bypass grafting on the beating heart and abdominal aortic surgery is safe and effective and has a low perioperative morbidity rate.
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Affiliation(s)
- Steven G Friedman
- Division of Vascular Surgery, North Shore University Hospital, Manhasset, NY 11030, USA.
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Savitt MA, Singh T, Agrawal S, Choudhary A, Chaugle H, Ahmed A. A simple technique for aortic valve replacement in patients with a patent left internal mammary artery bypass graft. Ann Thorac Surg 2002; 74:1269-70. [PMID: 12400796 DOI: 10.1016/s0003-4975(02)03762-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Aortic valve replacement in patients with a patent left internal mammary artery graft is often a challenge because of the difficulties with dissection of the left internal mammary artery and optimum myocardial protection. We describe a simple technique of aortic valve replacement with a beating heart and continuous coronary perfusion for this difficult group of patients.
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Deng YK, Wei F, Li ZL, Zhang DG, Yang SY. Esmolol protects the myocardium and facilitates direct version intracardiac operation with a beating heart. Circ J 2002; 66:715-7. [PMID: 12197593 DOI: 10.1253/circj.66.715] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In recent years there has been renewed interest in beating heart surgery using the ultra-active and selective beta1-blocker, esmolol. However, there has not been a report of its use in direct version intracardiac surgery with beating heart. Twenty-four patients undergoing elective direct version intracardiac surgery (mitral valve replacement) were divided randomly into 2 groups: control group (normothermia cardiopulmonary bypass (CPB) direct version intracardiac beating heart surgery) and esmolol group (normothermia CPB direct version intracardiac beating heart surgery and intravenous esmolol drip during CPB to maintain heart rate at 30-50 beats/min). Steady hemodynamic parameters were maintained in both groups; however, the doses of dopamine used in control group were larger than those for the esmolol group (p<0.01). The myocardial ultrastructure was well maintained in both group, but the scores for myocardial mitochondria, glycogen grading and counting and the amount of adenosine triphosphate were higher in the esmolol group (p<0.05). There was no significant change in the malondialdehyde level in either group (p>0.05). Using esmolol in direct version intracardiac beating heart surgery protects the myocardium and facilitates the operation.
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Affiliation(s)
- Yun-Kun Deng
- Department of Anesthesiology, Guizhou Provincial People's Hospital, Guiyang, China.
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Vassiliades TA, Nielsen JL, Lonquist JL. Hemodynamic collapse during off-pump coronary artery bypass grafting. Ann Thorac Surg 2002; 73:1874-9; discussion 1879. [PMID: 12078784 DOI: 10.1016/s0003-4975(02)03592-0] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
BACKGROUND The causes of hemodynamic collapse during off-pump coronary artery bypass (OPCAB) remain scarcely defined. We present an analysis of 23 cases of sustained hemodynamic collapse during elective off-pump CABG. METHODS During a 54-month period, we performed 1420 elective OPCAB procedures through a sternotomy, constituting 71.2% of the total CABG procedures performed. Twenty-three patients (1.6%) experienced hemodynamic collapse intra-operatively requiring immediate cardiopulmonary bypass. Preoperative characteristics, intraoperative data, and postoperative outcome were retrospectively reviewed in each patient. RESULTS In all cases, improvements in intra-operative technique and/or judgment could be made retrospectively. Twenty (20/23) of these patients had an uneventful postoperative course and three (3/23) patients had an unstable course with two deaths. CONCLUSIONS The causes of hemodynamic collapse during elective OPCAB were ischemic, mechanical, or a combination of both. A detailed review of our five and a half year experience has revealed a number of suggestions for improving the conduct of the operation.
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Ascione R, Iannelli G, Lim KH, Imura H, Spampinato N. One-stage coronary and abdominal aortic operation with or without cardiopulmonary bypass: early and midterm follow-up. Ann Thorac Surg 2001; 72:768-74; discussion 775. [PMID: 11565656 DOI: 10.1016/s0003-4975(01)02798-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND The aim of this study was to compare hospital, early, and late clinical outcomes for patients undergoing one-stage, coronary and abdominal aortic surgical intervention with and without cardiopulmonary bypass. METHODS From March 1990 to September 1999, 42 consecutive patients underwent combined operations at a single institution. Cardiopulmonary bypass and cardioplegic arrest were used during coronary revascularization in the first 20 patients (on-pump group), and the next 22 patients received the one-stage operations on the beating heart (off-pump group). RESULTS Baseline characteristics were similar between groups. Three cardiac-related hospital deaths occurred in the on-pump group and one such death in the off-pump group (p = 0.25). Cardiac-related events, pulmonary complications, inotropic support, blood loss and transfusion requirements, intensive care unit stay, and hospital stay were significantly reduced in the off-pump group (all, p < 0.05). The actuarial survival rates in the on-pump and off-pump groups were 80% and 95%, respectively, at 1 year (p = 0.13) and 75% and 89%, respectively, at 3 years (p = 0.22). Freedom from cardiac-related events at 1-year follow-up was 91% in the off-pump group and 65% in the on-pump group (p < 0.05). No difference in cardiac-related events between groups was observed at 3 years. CONCLUSIONS Off-pump coronary surgical procedures decrease postoperative complications in high-risk patients undergoing simultaneous coronary and abdominal aortic operations compared with the conventional one-stage procedure. The early benefits achieved with off-pump surgical intervention are not at the expense of the long-term clinical outcome.
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Affiliation(s)
- R Ascione
- Department of Cardiovascular Surgery, University Federico II of Naples, Italy.
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