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Yeung E, Smith S, Scharf M, Wung C, Harsha S, Lawson S, Rockwell R, Reitknecht F. BMI disparities in coronary artery bypass grafting outcomes: A single center Society of Thoracic Surgeons (STS) database analysis. SURGERY IN PRACTICE AND SCIENCE 2022. [DOI: 10.1016/j.sipas.2022.100110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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2
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Zeng S, Cai X, Zheng Y, Liu X, Ye M. Associations of body mass index with mortality in heart failure with preserved ejection fraction patients with ischemic versus non-ischemic etiology. Front Cardiovasc Med 2022; 9:966745. [PMID: 35990945 PMCID: PMC9386382 DOI: 10.3389/fcvm.2022.966745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 07/15/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundObesity could paradoxically improve prognosis in patients with heart failure (HF), termed the “obesity paradox.” Whether HF etiology could modify the “obesity paradox” is still controversial. In the present study, we aimed to assess the relationship between obesity and death in patients with heart failure with preserved ejection fraction (HFpEF) with non-ischemic versus ischemic etiologies.MethodsWe analyzed 3,360 HFpEF patients from the TOPCAT (Treatment of Preserved Cardiac Function Heart Failure with an Aldosterone Antagonist) trial. Cox regression models were used to assess the association of obesity assessed by body mass index (BMI) with short-term and long-term death risk.ResultsOverweight and obesity were associated with a lower risk of long-term all-cause death in patients with non-ischemic HFpEF, even in those with class III obesity (adjusted HR: 0.61, 95% CI 0.38–0.97). However, in the ischemic subgroup, as obesity advanced, this paradoxical relationship was gradually attenuated and disappeared in class III obesity (adjusted HR: 0.93, 95% CI 0.56–1.57). Restricted cubic spline analyses confirmed the differential relationship of baseline BMI with risk of long-term death with a BMI higher than 30 kg/m2 in non-ischemic versus ischemic HFpEF. In the short-term follow-up, the beneficial effects of overweight and obesity on survival were consistently observed in all the BMI categories, with the nadirs of all-cause death risk at class III obesity category both in non-ischemic and ischemic subgroups.Conclusion“Obesity paradox” was evident both in non-ischemic and ischemic HFpEF during short-term follow-up, even in those with class III obesity. However, the beneficial effect of class III obesity disappeared during long-term follow-up in ischemic HFpEF.Clinical Trial Registration[https://clinicaltrials.gov], identifier [NCT00094302].
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Affiliation(s)
- Shan Zeng
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Department of Cardiology, First Affiliated Hospital, Ministry of Education, Gannan Medical University, Ganzhou, China
| | - Xingming Cai
- Department of Geriatric, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yuxiang Zheng
- Second Clinical Medical College, Nanchang University, Nanchang, China
- Department of Anesthesiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiao Liu
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- *Correspondence: Xiao Liu,
| | - Min Ye
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Min Ye,
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Liu M, Mei K, Xie L, Ma J, Yu P, Niu S, Xu Y, Zhao Y, Liu X. Dose-response relationship among body mass index, abdominal adiposity and atrial fibrillation in patients undergoing cardiac surgery: a meta-analysis of 35 cohorts. PeerJ 2021; 9:e11855. [PMID: 34327066 PMCID: PMC8308618 DOI: 10.7717/peerj.11855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 07/04/2021] [Indexed: 11/20/2022] Open
Abstract
Background Whether overweight increases the risk of postoperative atrial fibrillation (POAF) is unclear, and whether adiposity independently contributes to POAF has not been comprehensively studied. Thus, we conducted a meta-analysis to clarify the strength and shape of the exposure-effect relationship between adiposity and POAF. Methods The PubMed, Cochrane Library, and EMBASE databases were searched for revelant studies (randomized controlled trials (RCTs), cohort studies, and nest-case control studies) reporting data regarding the relationship between adiposity and the risk of POAF. Results Thirty-five publications involving 33,271 cases/141,442 patients were included. Analysis of categorical variables showed that obesity (RR: 1.39, 95% CI [1.21–1.61]; P < 0.001), but not being underweight (RR: 1.44, 95% CI [0.90–2.30]; P = 0.13) or being overweight (RR: 1.03, 95% CI [0.95–1.11]; P = 0.48) was associated with an increased risk of POAF. In the exposure-effect analysis (BMI) was 1.09 (95% CI [1.05–1.12]; P < 0.001) for the risk of POAF. There was a significant linear relationship between BMI and POAF (Pnonlinearity = 0.44); the curve was flat and began to rise steeply at a BMI of approximately 30. Notably, BMI levels below 30 (overweight) were not associated with a higher risk of POAF. Additionally, waist obesity or visceral adiposity index was associated with the risk of POAF. Conclusion Based on the current evidence, our findings showed that high body mass index or abdominal adiposity was independently associated with an increased risk of POAF, while underweight or overweight might not significantly increase the POAF risk.
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Affiliation(s)
- Menglu Liu
- Department of Cardiology, Seventh People's Hospital of Zhengzhou, Zhengzhou, Henan, China
| | - Kaibo Mei
- Anesthesiology Department,, the People's Hospital of Shanggrao, Shangrao, Jiangxi, China
| | - Lixia Xie
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Jianyong Ma
- Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, Oh, China
| | - Peng Yu
- Department of Endocrine, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Siquan Niu
- Department of Cardiology, Seventh People's Hospital of Zhengzhou, Zhengzhou, Henan, China
| | - Ya Xu
- Department of Cardiology, Seventh People's Hospital of Zhengzhou, Zhengzhou, Henan, China
| | - Yujie Zhao
- Department of Cardiology, Seventh People's Hospital of Zhengzhou, Zhengzhou, Henan, China
| | - Xiao Liu
- Department of Cardiology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.,Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, Guangdong, China.,Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Guangzhou, China
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4
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Atik FA, Pegado HM, de Brito LMR, Macedo MT, França EP, Dias AKA, Barzilai VS, Chaves RB, Biondi RS, Monte GU, da Cunha CR. Does the anthropometric profile influence infection morbidity after coronary artery bypass grafting? J Card Surg 2021; 36:1194-1200. [PMID: 33469924 DOI: 10.1111/jocs.15334] [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: 12/18/2020] [Accepted: 12/30/2020] [Indexed: 01/02/2023]
Abstract
BACKGROUND Infection after cardiovascular surgery is multifactorial. We sought to determine whether the anthropometric profile influences the occurrence of infection after isolated coronary artery bypass grafting (CABG). METHODS Between January 2011 and June 2016, 1777 consecutive adult patients were submitted to isolated coronary artery bypass grafting. Mean age was 61.7 ± 9.8 years and 1193 (67.1%) were males. Patients were divided into four groups according to the body mass index (BMI) classification: underweight (BMI < 18.5 kg/m2 ; N = 17, 0.9%), normal range (BMI: 18.5-24.99 kg/m2 ; N = 522, 29.4%), overweight (BMI: 25-29.99 kg/m2 ; N = 796, 44.8%), and obese (BMI > 30 kg/m2 ; N = 430, 24.2%). In-hospital outcomes were compared and independent predictors of infection were obtained through multiple Poisson regression with a robust variation. RESULTS Independent predictors of any infection morbidity were female sex (relative ratio [RR], 1.47; p = .002), age > 60 years (RR, 1.85; p < .0001), cardiopulmonary bypass > 120 min (RR, 1.89; p = .0007), preoperative myocardial infarction < 30 days (RR, 1.37; p = .01), diabetes mellitus (RR, 1.59; p = .0003), ejection fraction < 48% (RR, 2.12; p < .0001), and blood transfusion (RR, 1.55; p = .0008). Among other variables, obesity, as well as diabetes mellitus, were independent predictors of superficial and deep sternal wound infection. CONCLUSIONS Other factors rather than the anthropometric profile are more important in determining the occurrence of any infection after CABG. However, surgical site infection has occurred more frequently in obese patients. Appropriate patient selection, control of modifiable factors, and application of surgical bundles would minimize this important complication.
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Affiliation(s)
- Fernando A Atik
- Department of Cardiovascular Surgery, Instituto de Cardiologia do Distrito Federal, Brasilia, Distrito Federal, Brazil
| | - Hélio M Pegado
- Department of Cardiovascular Surgery, Instituto de Cardiologia do Distrito Federal, Brasilia, Distrito Federal, Brazil
| | - Larissa M R de Brito
- Department of Cardiovascular Surgery, Instituto de Cardiologia do Distrito Federal, Brasilia, Distrito Federal, Brazil
| | - Murilo T Macedo
- Department of Cardiovascular Surgery, Instituto de Cardiologia do Distrito Federal, Brasilia, Distrito Federal, Brazil
| | - Edilson P França
- Department of Cardiovascular Surgery, Instituto de Cardiologia do Distrito Federal, Brasilia, Distrito Federal, Brazil
| | - Adhamys K A Dias
- Department of Cardiovascular Surgery, Instituto de Cardiologia do Distrito Federal, Brasilia, Distrito Federal, Brazil
| | - Vitor S Barzilai
- Department of Cardiology, Instituto de Cardiologia do Distrito Federal, Brasilia, Distrito Federal, Brazil.,Department of Intensive Care Medicine, Instituto de Cardiologia do Distrito Federal, Brasilia, Distrito Federal, Brazil
| | - Renato B Chaves
- Department of Cardiology, Instituto de Cardiologia do Distrito Federal, Brasilia, Distrito Federal, Brazil
| | - Rodrigo S Biondi
- Department of Intensive Care Medicine, Instituto de Cardiologia do Distrito Federal, Brasilia, Distrito Federal, Brazil
| | - Guilherme U Monte
- Department of Cardiology, Instituto de Cardiologia do Distrito Federal, Brasilia, Distrito Federal, Brazil
| | - Claudio R da Cunha
- Department of Cardiovascular Surgery, Instituto de Cardiologia do Distrito Federal, Brasilia, Distrito Federal, Brazil
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Liu X, Xie L, Zhu W, Zhou Y. Association of body mass index and all-cause mortality in patients after cardiac surgery: A dose-response meta-analysis. Nutrition 2019; 72:110696. [PMID: 32007807 DOI: 10.1016/j.nut.2019.110696] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 11/18/2019] [Accepted: 12/01/2019] [Indexed: 12/26/2022]
Abstract
Ample studies have reported the effect of body mass index (BMI) on the prognosis of patients undergoing cardiac surgery, but the results remain inconsistent. Therefore, we aimed to conduct a dose-response meta-analysis to clarify the relationship between BMI and all-cause mortality in this population. A systematic search was performed in the PubMed and Embase databases through April 2019 for studies that reported the impact of BMI on all-cause mortality in patients after cardiac surgery. Pooled risk ratios (RRs) were calculated using a random-effects model. Non-linear associations were explored with restricted cubic spline models. Forty-one studies with a total of 54,300 cases/1,774,387 patients were included. The pooled RR for all-cause mortality was 0.93 (95% CI 0.89-0.97) for every 5-unit increment in BMI, indicating that higher BMI did not increase the risk of all-cause mortality in patients after cardiac surgery. A U-shaped association with the nadir of risk at a BMI of 25-27.5 kg/m2 was observed, as well as a higher mortality risk for the underweight and the extremely obese patients. The subgroup analysis revealed that this phenomenon remained regardless of mean age, surgery type, geographic location and number of cases. Overall, for patients after cardiac surgery, a slightly higher BMI may be instrumental in survival, whereas underweight and extreme obesity is associated with a worse prognosis.
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Affiliation(s)
- Xin Liu
- Department of Critial Care Medicine, The First Affiliated Hosptial of Gannan Medical University, Ganzhou of Jiangxi, China
| | - Lixia Xie
- Department of Respiratory Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Wengen Zhu
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Yue Zhou
- Department of Pediatric Ophthalmology, The Second Affiliated Hospital of Nanchang University, Jiangxi, China.
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6
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Zhang K, Wang J, Yang Y, An R. Adiposity in relation to readmission and all-cause mortality following coronary artery bypass grafting: A systematic review and meta-analysis. Obes Rev 2019; 20:1159-1183. [PMID: 30945439 DOI: 10.1111/obr.12855] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 03/01/2019] [Accepted: 03/03/2019] [Indexed: 11/29/2022]
Abstract
This study systemically reviewed evidence linking adiposity to readmission and all-cause mortality in post-coronary artery bypass grafting (CABG) patients. Keyword/reference search was performed in PubMed, Web of Science, CINAHL, and Cochrane Library for articles published before June, 2018. Eligibility criteria included study designs: experimental/observational studies; subjects: adult patients undergoing CABG; and outcomes: hospital/clinic readmissions, and short-term (≤30 days) and mid-to-long-term (>30 days) all-cause mortality. Seventy-two studies were identified. Meta-analysis showed that the odds of post-CABG readmission among patients with overweight was 30% lower than their normal-weight counterparts and the odds of mid-to-long-term post-CABG mortality among patients with overweight were 20% lower than their normal-weight counterparts. In contrast, no difference in post-CABG readmission rate was found between patients with obesity and their nonobese counterparts; no difference in short-term or in-hospital post-CABG mortality rate was found between patients with overweight or obesity and their normal-weight counterparts; and no difference in mid-to-long-term post-CABG mortality rate was found between patients with obesity and their normal-weight counterparts. In conclusion, patients with overweight but not obesity had a lower readmission and mid-to-long-term mortality rate following CABG relative to their normal-weight counterparts. Preoperative weight loss may not be advised to patients with overweight undergoing CABG.
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Affiliation(s)
- Kefeng Zhang
- Beijing Aortic Disease Center, Beijing Anzhen Hospital, Beijing, Capital Medical University, Beijing, China
| | - Junjie Wang
- Department of Physical Education, Dalian University of Technology, Dalian, Liaoning, China
| | - Yan Yang
- Cabot Microelectronics, Aurora, Illinois, USA
| | - Ruopeng An
- Guangzhou Sport University, Guangzhou, Guangdong, China.,Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Champaign, Illinois, USA.,Brown School, Washington University, St. Louis, Missouri, USA
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7
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Garatti A, Parolari A, Canziani A, Mossuto E, Daprati A, Abu Farah A, Brugnetti D, Ranucci M, Menicanti L. Is female sex an independent risk factor for early mortality in isolated coronary artery bypass graft? A propensity-matched analysis. J Cardiovasc Med (Hagerstown) 2019; 19:497-502. [PMID: 29917004 DOI: 10.2459/jcm.0000000000000659] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS Despite several studies reporting a higher mortality rate for women undergoing isolated coronary artery bypass graft (CABG) surgery, this issue has not been completely clarified. The aim of the current study was to determine if sex differences in CABG surgery affect adjusted operative results and operative mortality. METHODS Between January 2005 and December 2012, 3756 consecutive patients (3009 men and 747 women) underwent isolated CABG at our institution. Women presented with older age, smaller BSA and higher rate of preoperative comorbidities. The propensity score methodology was used to obtain risk-adjusted outcome comparisons between the two groups. RESULTS The distribution of preoperative variables among matched pairs (553 patients in both groups) was, on average, equal. Propensity-matched women received a similar number of distal anastomoses (P = 0.56), had similar rate of left internal thoracic artery (LITA) graft (P = 0.73) and comparable extracorporeal circulation (P = 0.61) and aortic cross-clamp (P = 0.39) time as men. Postoperative complications were comparable in the two study groups with the exception of postoperative transfusion rate which was significantly higher in women (P = 0.01). However, operative mortality (3.8 vs. 2.7%; P = 0.20), perioperative acute myocardial infarction (P = 0.50) and stroke (P = 0.75) were not significantly different between the two groups. Interestingly, after adjustment for the other baseline characteristics, female patients with diabetes (P = 0.03), preoperative renal dysfunction (P = 0.07) and obesity (P = 0.07) exhibited a greater operative mortality rate compared with men with the same comorbidities. CONCLUSION After adjustment for preoperative variables, female sex seems not to be an independent risk factor for early mortality in isolated CABG surgery. However, renal impairment, diabetes and obesity seem to play an important role in the operative risk profile of women undergoing isolated CABG.
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Affiliation(s)
- Andrea Garatti
- Department of Cardiac Surgery, I.R.C.C.S. Policlinico San Donato, Milan, Italy
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8
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Ma WQ, Sun XJ, Wang Y, Han XQ, Zhu Y, Liu NF. Does body mass index truly affect mortality and cardiovascular outcomes in patients after coronary revascularization with percutaneous coronary intervention or coronary artery bypass graft? A systematic review and network meta-analysis. Obes Rev 2018; 19:1236-1247. [PMID: 30035367 DOI: 10.1111/obr.12713] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 04/02/2018] [Accepted: 04/22/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND Obesity, a comorbid medical condition, is usually observed in patients with established coronary artery disease. Paradoxically, patients with a higher body mass index (BMI) usually have better clinical outcomes after coronary revascularization. METHODS We searched five online databases through December 2017. We identified studies reporting the rate of all-cause mortality or cardiovascular-related outcomes among patients after coronary revascularization with percutaneous coronary intervention or coronary artery bypass graft based on various BMI categories. Network meta-analysis was performed using Bayesian methods. RESULTS Sixty-five records involving 865,774 participants were included in our study. A U-shaped association was observed across BMI categories for all-cause mortality. Using normal weight as the reference, all-cause mortality was increased for (relative risk [RR]: 2.4; 95% credibility interval [CrI]: 2.1-2.7) patients with underweight, whereas it was lowered in patients with overweight, obese, and severely obese. This association remained significant in many subgroups. We also observed that the risk of major adverse cardiovascular events (MACE) was lowest among patients with overweight. Furthermore, patients with underweight were associated with greater risks of myocardial infarction (RR: 1.9; 95% CrI: 1.4-2.5), cardiovascular-related mortality (RR: 2.8; 95% CrI: 1.6-4.7), stroke (RR: 2.0; 95% CrI: 1.3-3.3) and heart failure (RR: 1.7; 95% CrI: 1.1-2.7) compared with normal weight patients; no significant association was observed among individuals with higher BMI. CONCLUSIONS The 'obesity paradox' does exist in patients after coronary revascularization, especially for patients with post-percutaneous coronary intervention. All-cause mortality in patients with high BMI is significantly lower compared with patients with normal weight. Furthermore, patients with underweight experience higher rates of cardiovascular outcomes compared with patients with normal weight.
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Affiliation(s)
- W-Q Ma
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University 87 Dingjiaqiao, Nanjing, China
| | - X-J Sun
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University 87 Dingjiaqiao, Nanjing, China
| | - Y Wang
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University 87 Dingjiaqiao, Nanjing, China
| | - X-Q Han
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University 87 Dingjiaqiao, Nanjing, China
| | - Y Zhu
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University 87 Dingjiaqiao, Nanjing, China
| | - N-F Liu
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University 87 Dingjiaqiao, Nanjing, China
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Elagizi A, Kachur S, Lavie CJ, Carbone S, Pandey A, Ortega FB, Milani RV. An Overview and Update on Obesity and the Obesity Paradox in Cardiovascular Diseases. Prog Cardiovasc Dis 2018; 61:142-150. [PMID: 29981771 DOI: 10.1016/j.pcad.2018.07.003] [Citation(s) in RCA: 419] [Impact Index Per Article: 69.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Accepted: 07/01/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Andrew Elagizi
- Department of Cardiovascular Diseases, John Ochsner Heart and Vascular Institute, Ochsner Clinical School-the University of Queensland School of Medicine, New Orleans, LA, United States of America
| | - Sergey Kachur
- Department of Cardiovascular Diseases, John Ochsner Heart and Vascular Institute, Ochsner Clinical School-the University of Queensland School of Medicine, New Orleans, LA, United States of America
| | - Carl J Lavie
- Department of Cardiovascular Diseases, John Ochsner Heart and Vascular Institute, Ochsner Clinical School-the University of Queensland School of Medicine, New Orleans, LA, United States of America.
| | - Salvatore Carbone
- Pauley Heart Center, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, United States of America
| | - Ambarish Pandey
- Division of Cardiology, University of Texas Southwestern Medical Center, Dallas, TX, United States of America
| | - Francisco B Ortega
- Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Richard V Milani
- Department of Cardiovascular Diseases, John Ochsner Heart and Vascular Institute, Ochsner Clinical School-the University of Queensland School of Medicine, New Orleans, LA, United States of America
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Nakadate Y, Sato H, Sato T, Codere-Maruyama T, Matsukawa T, Schricker T. Body mass index predicts insulin sensitivity during cardiac surgery: a prospective observational study. Can J Anaesth 2018; 65:551-559. [DOI: 10.1007/s12630-018-1081-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 12/28/2017] [Accepted: 12/30/2017] [Indexed: 01/08/2023] Open
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Failure of Isoflurane Cardiac Preconditioning in Obese Type 2 Diabetic Mice Involves Aberrant Regulation of MicroRNA-21, Endothelial Nitric-oxide Synthase, and Mitochondrial Complex I. Anesthesiology 2017; 128:117-129. [PMID: 29040168 DOI: 10.1097/aln.0000000000001926] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Diabetes impairs the cardioprotective effect of volatile anesthetics, yet the mechanisms are still murky. We examined the regulatory effect of isoflurane on microRNA-21, endothelial nitric-oxide synthase, and mitochondrial respiratory complex I in type 2 diabetic mice. METHODS Myocardial ischemia/reperfusion injury was produced in obese type 2 diabetic (db/db) and C57BL/6 control mice ex vivo in the presence or absence of isoflurane administered before ischemia. Cardiac microRNA-21 was quantified by real-time quantitative reverse transcriptional-polymerase chain reaction. The dimers and monomers of endothelial nitric-oxide synthase were measured by Western blot analysis. Mitochondrial nicotinamide adenine dinucleotide fluorescence was determined in Langendorff-perfused hearts. RESULTS Body weight and fasting blood glucose were greater in db/db than C57BL/6 mice. Isoflurane decreased left ventricular end-diastolic pressure from 35 ± 8 mmHg in control to 23 ± 9 mmHg (P = 0.019, n = 8 mice/group, mean ± SD) and elevated ±dP/dt 2 h after post-ischemic reperfusion in C57BL/6 mice. These beneficial effects of isoflurane were lost in db/db mice. Isoflurane elevated microRNA-21 and the ratio of endothelial nitric-oxide synthase dimers/monomers and decreased mitochondrial nicotinamide adenine dinucleotide levels 5 min after ischemia in C57BL/6 but not db/db mice. MicroRNA-21 knockout blocked these favorable effects of isoflurane, whereas endothelial nitric-oxide synthase knockout had no effect on the expression of microRNA-21 but blocked the inhibitory effect of isoflurane preconditioning on nicotinamide adenine dinucleotide. CONCLUSIONS Failure of isoflurane cardiac preconditioning in obese type 2 diabetic db/db mice is associated with aberrant regulation of microRNA-21, endothelial nitric-oxide synthase, and mitochondrial respiratory complex I.
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12
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Lavie CJ, Arena R, Alpert MA, Milani RV, Ventura HO. Management of cardiovascular diseases in patients with obesity. Nat Rev Cardiol 2017; 15:45-56. [PMID: 28748957 DOI: 10.1038/nrcardio.2017.108] [Citation(s) in RCA: 132] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The management of cardiovascular diseases (CVD) in patients with obesity presents numerous challenges. Obesity has a negative effect on almost all of the major CVD risk factors, and adversely influences cardiovascular structure and function. Patients who are overweight or obese have a higher incidence of almost all CVDs compared with patients who are of normal weight. However, those who are overweight or obese seem to have a better short-term and medium-term prognosis after major CVD events and interventional procedures or cardiac surgeries than leaner patients, a phenomenon termed the 'obesity paradox'. In considering the mechanisms underlying this paradox, we review evidence of the deleterious consequences of obesity in patients with coronary heart disease, and the limited data on the benefits of weight loss in patients with CVD. Additional studies are needed on the efficacy of purposeful weight loss on cardiovascular outcomes to determine the ideal body composition for patients with CVD.
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Affiliation(s)
- Carl J Lavie
- Department of Cardiovascular Diseases, John Ochsner Heart and Vascular Institute, Ochsner Clinical School - University of Queensland School of Medicine, 1514 Jefferson Highway, New Orleans, Louisiana 70121, USA
| | - Ross Arena
- Department of Physical Therapy, Department of Kinesiology and Nutrition, Integrative Physiology Laboratories, College of Applied Sciences, University of Illinois at Chicago, 1919 W Taylor Street, Chicago, Illinois 60612, USA
| | - Martin A Alpert
- Division of Cardiovascular Medicine, University of Missouri School of Medicine, One Hospital Drive, Columbia, Missouri 65212, USA
| | - Richard V Milani
- Department of Cardiovascular Diseases, John Ochsner Heart and Vascular Institute, Ochsner Clinical School - University of Queensland School of Medicine, 1514 Jefferson Highway, New Orleans, Louisiana 70121, USA
| | - Hector O Ventura
- Department of Cardiovascular Diseases, John Ochsner Heart and Vascular Institute, Ochsner Clinical School - University of Queensland School of Medicine, 1514 Jefferson Highway, New Orleans, Louisiana 70121, USA
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13
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Terada T, Forhan M, Norris CM, Qiu W, Padwal R, Sharma AM, Nagendran J, Johnson JA. Differences in Short- and Long-Term Mortality Associated With BMI Following Coronary Revascularization. J Am Heart Assoc 2017; 6:e005335. [PMID: 28411242 PMCID: PMC5533024 DOI: 10.1161/jaha.116.005335] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 03/01/2017] [Indexed: 12/22/2022]
Abstract
BACKGROUND The association between obesity and mortality risks following coronary revascularization is not clear. We examined the associations of BMI (kg/m2) with short-, intermediate-, and long-term mortality following coronary artery bypass graft surgery (CABG) and percutaneous coronary intervention (PCI) in patients with different coronary anatomy risks and diabetes mellitus status. METHODS AND RESULTS Data from the Alberta Provincial Project for Outcomes Assessment in Coronary Heart Disease (APPROACH) registry were analyzed. Using normal BMI (18.5-24.9) as a reference, multivariable-adjusted hazard ratios for all-cause mortality within 6 months, 1 year, 5 years, and 10 years were individually calculated for CABG and PCI with 4 prespecified BMI categories: overweight (25.0-29.9), obese class I (30.0-34.9), obese class II (35.0-39.9), and obese class III (≥40.0). The analyses were repeated after stratifying for coronary risks and diabetes mellitus status. The cohorts included 7560 and 30 258 patients for CABG and PCI, respectively. Following PCI, overall mortality was lower in patients with overweight and obese class I compared to those with normal BMI; however, 5- and 10-year mortality rates were significantly higher in patients with obese class III with high-risk coronary anatomy, which was primarily driven by higher mortality rates in patients without diabetes mellitus (5-year adjusted hazard ratio, 1.78 [95% CI, 1.11-2.85] and 10-year adjusted hazard ratio, 1.57 [95% CI, 1.02-2.43]). Following CABG, overweight was associated with lower mortality risks compared with normal BMI. CONCLUSIONS Overweight was associated with lower mortality following CABG and PCI. Greater long-term mortality in patients with obese class III following PCI, especially in those with high-risk coronary anatomy without diabetes mellitus, warrants further investigation.
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Affiliation(s)
- Tasuku Terada
- Department of Occupational Therapy, Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Mary Forhan
- Department of Occupational Therapy, Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Colleen M Norris
- School of Public Health, University of Alberta, Edmonton, Alberta, Canada
- Faculty of Nursing, University of Alberta, Edmonton, Alberta, Canada
- Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
- Alberta Transplant Institute, University of Alberta, Edmonton, Alberta, Canada
- Cardiovascular Health and Stroke Strategic Clinical Network, Alberta Health Services, Edmonton, Canada
- Department of Surgery, Mazankowski Alberta Heart Institute, Alberta Health Services, Edmonton, Canada
| | - Weiyu Qiu
- School of Public Health, University of Alberta, Edmonton, Alberta, Canada
| | - Raj Padwal
- Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Arya M Sharma
- Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Jayan Nagendran
- Alberta Transplant Institute, University of Alberta, Edmonton, Alberta, Canada
- Department of Surgery, Mazankowski Alberta Heart Institute, Alberta Health Services, Edmonton, Canada
| | - Jeffrey A Johnson
- School of Public Health, University of Alberta, Edmonton, Alberta, Canada
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14
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Mariscalco G, Wozniak MJ, Dawson AG, Serraino GF, Porter R, Nath M, Klersy C, Kumar T, Murphy GJ. Body Mass Index and Mortality Among Adults Undergoing Cardiac Surgery: A Nationwide Study With a Systematic Review and Meta-Analysis. Circulation 2017; 135:850-863. [PMID: 28034901 DOI: 10.1161/circulationaha.116.022840] [Citation(s) in RCA: 144] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 12/08/2016] [Indexed: 12/20/2022]
Abstract
BACKGROUND In an apparent paradox, morbidity and mortality are lower in obese patients undergoing cardiac surgery, although the nature of this association is unclear. We sought to determine whether the obesity paradox observed in cardiac surgery is attributable to reverse epidemiology, bias, or confounding. METHODS Data from the National Adult Cardiac Surgery registry for all cardiac surgical procedures performed between April 2002 and March 2013 were extracted. A parallel systematic review and meta-analysis (MEDLINE, Embase, SCOPUS, Cochrane Library) through June 2015 were also accomplished. Exposure of interest was body mass index categorized into 6 groups according to the World Health Organization classification. RESULTS A total of 401 227 adult patients in the cohort study and 557 720 patients in the systematic review were included. A U-shaped association between mortality and body mass index classes was observed in both studies, with lower mortality in overweight (adjusted odds ratio, 0.79; 95% confidence interval, 0.76-0.83) and obese class I and II (odds ratio, 0.81; 95% confidence interval, 0.76-0.86; and odds ratio, 0.83; 95% confidence interval, 0.74-0.94) patients relative to normal-weight patients and increased mortality in underweight individuals (odds ratio, 1.51; 95% confidence interval, 1.41-1.62). In the cohort study, a U-shaped relationship was observed for stroke and low cardiac output syndrome but not for renal replacement therapy or deep sternal wound infection. Counter to the reverse epidemiology hypotheses, the protective effects of obesity were less in patients with severe chronic renal, lung, or cardiac disease and greater in older patients and in those with complications of obesity, including the metabolic syndrome and atherosclerosis. Adjustments for important confounders did not alter our results. CONCLUSIONS Obesity is associated with lower risks after cardiac surgery, with consistent effects noted in multiple analyses attempting to address residual confounding and reverse causation.
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Affiliation(s)
- Giovanni Mariscalco
- From Leicester Cardiovascular Biomedical Research Unit and Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, UK (G.M., M.J.W., A.G.D., G.F.S., M.N., T.K., G.J.M.); Department of Anaesthesia and Critical Care, Glenfield Hospital, University Hospitals of Leicester NHS Trust, UK (R.P.); and Service of Biometry and Clinical Epidemiology, IRCCS Policlinico San Matteo Foundation, Pavia, Italy (C.K.).
| | - Marcin J Wozniak
- From Leicester Cardiovascular Biomedical Research Unit and Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, UK (G.M., M.J.W., A.G.D., G.F.S., M.N., T.K., G.J.M.); Department of Anaesthesia and Critical Care, Glenfield Hospital, University Hospitals of Leicester NHS Trust, UK (R.P.); and Service of Biometry and Clinical Epidemiology, IRCCS Policlinico San Matteo Foundation, Pavia, Italy (C.K.)
| | - Alan G Dawson
- From Leicester Cardiovascular Biomedical Research Unit and Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, UK (G.M., M.J.W., A.G.D., G.F.S., M.N., T.K., G.J.M.); Department of Anaesthesia and Critical Care, Glenfield Hospital, University Hospitals of Leicester NHS Trust, UK (R.P.); and Service of Biometry and Clinical Epidemiology, IRCCS Policlinico San Matteo Foundation, Pavia, Italy (C.K.)
| | - Giuseppe F Serraino
- From Leicester Cardiovascular Biomedical Research Unit and Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, UK (G.M., M.J.W., A.G.D., G.F.S., M.N., T.K., G.J.M.); Department of Anaesthesia and Critical Care, Glenfield Hospital, University Hospitals of Leicester NHS Trust, UK (R.P.); and Service of Biometry and Clinical Epidemiology, IRCCS Policlinico San Matteo Foundation, Pavia, Italy (C.K.)
| | - Richard Porter
- From Leicester Cardiovascular Biomedical Research Unit and Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, UK (G.M., M.J.W., A.G.D., G.F.S., M.N., T.K., G.J.M.); Department of Anaesthesia and Critical Care, Glenfield Hospital, University Hospitals of Leicester NHS Trust, UK (R.P.); and Service of Biometry and Clinical Epidemiology, IRCCS Policlinico San Matteo Foundation, Pavia, Italy (C.K.)
| | - Mintu Nath
- From Leicester Cardiovascular Biomedical Research Unit and Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, UK (G.M., M.J.W., A.G.D., G.F.S., M.N., T.K., G.J.M.); Department of Anaesthesia and Critical Care, Glenfield Hospital, University Hospitals of Leicester NHS Trust, UK (R.P.); and Service of Biometry and Clinical Epidemiology, IRCCS Policlinico San Matteo Foundation, Pavia, Italy (C.K.)
| | - Catherine Klersy
- From Leicester Cardiovascular Biomedical Research Unit and Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, UK (G.M., M.J.W., A.G.D., G.F.S., M.N., T.K., G.J.M.); Department of Anaesthesia and Critical Care, Glenfield Hospital, University Hospitals of Leicester NHS Trust, UK (R.P.); and Service of Biometry and Clinical Epidemiology, IRCCS Policlinico San Matteo Foundation, Pavia, Italy (C.K.)
| | - Tracy Kumar
- From Leicester Cardiovascular Biomedical Research Unit and Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, UK (G.M., M.J.W., A.G.D., G.F.S., M.N., T.K., G.J.M.); Department of Anaesthesia and Critical Care, Glenfield Hospital, University Hospitals of Leicester NHS Trust, UK (R.P.); and Service of Biometry and Clinical Epidemiology, IRCCS Policlinico San Matteo Foundation, Pavia, Italy (C.K.)
| | - Gavin J Murphy
- From Leicester Cardiovascular Biomedical Research Unit and Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, UK (G.M., M.J.W., A.G.D., G.F.S., M.N., T.K., G.J.M.); Department of Anaesthesia and Critical Care, Glenfield Hospital, University Hospitals of Leicester NHS Trust, UK (R.P.); and Service of Biometry and Clinical Epidemiology, IRCCS Policlinico San Matteo Foundation, Pavia, Italy (C.K.)
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15
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Protopapas AD. Does Body Mass Index Affect Mortality in Coronary Surgery? Open Cardiovasc Med J 2017; 10:240-245. [PMID: 28217179 PMCID: PMC5278562 DOI: 10.2174/1874192401610010240] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 09/23/2016] [Accepted: 11/01/2016] [Indexed: 11/22/2022] Open
Abstract
Introduction: The Body Mass Index (BMI) quantifies nutritional status and classifies humans as underweight, of normal weight, overweight, mildly obese, moderately obese or morbidly obese. Obesity is the excessive accumulation of fat, defined as BMI higher than 30 kg/m2. Obesity is widely accepted to complicate anaesthesia and surgery, being a risk factor for mediastinitis after coronary artery bypass grafting (CABG). We sought the evidence on operative mortality of CABG between standard BMI groups. Materials and Methodology: A simple literature review of papers presenting the mortality of CABG by BMI group: Underweight (BMI ≤ 18.49 kg/m2), normal weight (BMI 18.5–24.9 kg/m2), overweight (BMI 25.0–29.9 kg/m2), mild obesity (BMI 30.0–34.9 kg/m2), moderate obesity (BMI 35.0–39.9 kg/m2), or morbid obesity (BMI ≥ 40.0 kg/m2). Results: We identified 18 relevant studies with 1,027,711 patients in total. Their variability in size of samples and choice of BMI groups precluded us from attempting inferential statistics. The overall cumulative mortality was 2.7%. Underweight patients had by far the highest mortality (6.6%). Overweight patients had the lowest group mortality (2.1%). The group mortality for morbidly obese patients was 3.44%. Discussion: Patients with extreme BMI’s undergoing CABG (underweight ones more than morbidly obese) suffer increased crude mortality. This simple observation indicates that under nutrition and morbid obesity need be further explored as risk factors for coronary surgery.
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Affiliation(s)
- Aristotle D Protopapas
- Division of Surgery, Department of Surgery and Cancer, Imperial College London, United Kingdom
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16
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Salem AI, Thau MR, Strom TJ, Abbott AM, Saeed N, Almhanna K, Hoffe SE, Shridhar R, Karl RC, Meredith KL. Effect of body mass index on operative outcome after robotic-assisted Ivor-Lewis esophagectomy: retrospective analysis of 129 cases at a single high-volume tertiary care center. Dis Esophagus 2017; 30:1-7. [PMID: 27149640 DOI: 10.1111/dote.12484] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The impact of body weight on outcomes after robotic-assisted esophageal surgery for cancer has not been studied. We examined the short-term operative outcomes in patients according to their body mass index following robotic-assisted Ivor-Lewis esophagectomy at a high-volume tertiary-care referral cancer center and evaluated the safety of robotic surgery in patients with an elevated body mass index. A retrospective review of all patients who underwent robotic-assisted Ivor-Lewis esophagectomy between April 2010 and June 2013 for pathologically confirmed distal esophageal cancer was conducted. Patient demographics, clinicopathologic data, and operative outcomes were collected. We stratified body mass index at admission for surgery according to World Health Organization criteria; normal range is defined as a body mass index range of 18.5-24.9 kg/m2. Overweight is defined as a body mass index range of 25.0-29.9 kg/m2 and obesity is defined as a body mass index of 30 kg/m2 and above. Statistics were calculated using Pearson's Chi-square and Pearson's correlation coefficient tests with a P-value of 0.05 or less for significance. One hundred and twenty-nine patients (103 men, 26 women) with median age of 67 (30-84) years were included. The majority of patients, 76% (N = 98) received neoadjuvant therapy. When stratified by body mass index, 28 (22%) were normal weight, 56 (43%) were overweight, and 45 (35%) were obese. All patients had R0 resection. Median operating room time was 407 (239-694) minutes. When stratified by body mass index, medians of operating room time across the normal weight, overweight and obese groups were 387 (254-660) minutes, 395 (310-645) minutes and 445 (239-694), respectively. Median estimated blood loss (EBL) was 150 (25-600) cc. When stratified by body mass index, medians of EBL across the normal weight, overweight and obese groups were 100 (50-500) cc, 150 (25-600) cc and 150 (25-600), respectively. Obesity significantly correlated with longer operating room time (P = 0.05) but without significant increased EBL (P = 0.348). Among the three body mass index groups there was no difference in postoperative complications including thrombotic events (pulmonary embolism and deep venous thrombosis) (P = 0.266), pneumonia (P = 0.189), anastomotic leak (P = 0.090), wound infection (P = 0.390), any cardiac events (P = 0.793) or 30 days mortality (P = 0.414). Our data study demonstrates that patients with esophageal cancer and an elevated body mass index undergoing robotic-assisted Ivor-Lewis esophagectomy have increased operative times but no significantly increased EBL during the procedure. Other potential morbidities did not differ with the robotic approach.
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Affiliation(s)
- Ahmed I Salem
- Department of Surgery, University of Wisconsin Hospital and Clinics, Madison, WI, USA
| | - Matthew R Thau
- University of South Florida Morsani College of Medicine, Tampa, Florida, USA
| | - Tobin J Strom
- Department of Radiation Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Andrea M Abbott
- Department of Surgery, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Nadia Saeed
- Department of Medical Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Khaldoun Almhanna
- Department of Medical Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Sarah E Hoffe
- Department of Radiation Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Ravi Shridhar
- Department of Radiation Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Richard C Karl
- Department of Surgery, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Kenneth L Meredith
- Department of Surgery, University of Wisconsin Hospital and Clinics, Madison, WI, USA
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17
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Genovese EA, Fish L, Chaer RA, Makaroun MS, Baril DT. Risk stratification for the development of respiratory adverse events following vascular surgery using the Society of Vascular Surgery's Vascular Quality Initiative. J Vasc Surg 2016; 65:459-470. [PMID: 27832989 DOI: 10.1016/j.jvs.2016.07.119] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 07/21/2016] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Postoperative respiratory adverse events (RAEs) are associated with high rates of morbidity and mortality in general surgery, however, little is known about these complications in the vascular surgery population, a frail subset with multiple comorbidities. The objective of this study was to describe the contemporary incidence of RAEs in vascular surgery patients, the risk factors for this complication, and the overall impact of RAEs on patient outcomes. METHODS The Vascular Quality Initiative was queried (2003-2014) for patients who underwent endovascular abdominal aortic repair, open abdominal aortic aneurysm repair, thoracic endovascular aortic repair, suprainguinal bypass, or infrainguinal bypass. A mixed-effects logistic regression model determined the independent risk factors for RAEs. Using a random 85% of the cohort, a risk prediction score for RAEs was created, and the score was validated using the remaining 15% of the cohort, comparing the predicted to the actual incidence of RAE and determining the area under the receiver operating characteristic curve. The independent risk of in-hospital mortality and discharge to a nursing facility associated with RAEs was determined using a mixed-effects logistic regression to control for baseline patient characteristics, operative variables, and other postoperative adverse events. RESULTS The cohort consisted of 52,562 patients, with a 5.4% incidence of RAEs. The highest rates of RAEs were seen in current smokers (6.1%), recent acute myocardial infarction (10.1%), symptomatic congestive heart failure (9.9%), chronic obstructive pulmonary disease requiring oxygen therapy (11.0%), urgent and emergent procedures (6.4% and 25.9%, respectively), open abdominal aortic aneurysm repairs (17.6%), in situ suprainguinal bypasses (9.68%), and thoracic endovascular aortic repairs (9.6%). The variables included in the risk prediction score were age, body mass index, smoking status, congestive heart failure severity, chronic obstructive pulmonary disease severity, degree of renal insufficiency, ambulatory status, transfer status, urgency, and operative type. The predicted compared with the actual RAE incidence were highly correlated, with a correlation coefficient of 0.943 (P < .0001) and a c-statistic = 0.818. RAEs had a significantly higher rates of in-hospital mortality (25.4% vs 1.2%; P < .0001; adjusted odds ratio, 5.85; P < .0001), and discharge to a nursing facility (57.8% vs 19.0%; P < .0001; adjusted odds ratio, 3.14; P < .0001). CONCLUSIONS RAEs are frequent and one of the strongest risk factors for in-hospital mortality and inability to be discharged home. Our risk prediction score accurately stratifies patients based on key demographics, comorbidities, presentation, and operative type that can be used to guide patient counseling, preoperative optimization, and postoperative management. Furthermore, it may be useful in developing quality benchmarks for RAE following major vascular surgery.
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Affiliation(s)
- Elizabeth A Genovese
- Department of Surgery, Division of Vascular Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pa.
| | - Larry Fish
- Department of Surgery, Division of Vascular Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pa
| | - Rabih A Chaer
- Department of Surgery, Division of Vascular Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pa
| | - Michel S Makaroun
- Department of Surgery, Division of Vascular Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pa
| | - Donald T Baril
- Department of Surgery, Division of Vascular and Endovascular Surgery, University of California Los Angeles Health, Los Angeles, Calif
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18
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Lomivorotov VV, Efremov SM, Kirov MY, Fominskiy EV, Karaskov AM. Low-Cardiac-Output Syndrome After Cardiac Surgery. J Cardiothorac Vasc Anesth 2016; 31:291-308. [PMID: 27671216 DOI: 10.1053/j.jvca.2016.05.029] [Citation(s) in RCA: 168] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Indexed: 12/11/2022]
Affiliation(s)
- Vladimir V Lomivorotov
- Department of Anesthesiology and Intensive Care, Research Institute of Circulation Pathology, Novosibirsk, Russia.
| | - Sergey M Efremov
- Department of Anesthesiology and Intensive Care, Research Institute of Circulation Pathology, Novosibirsk, Russia
| | - Mikhail Y Kirov
- Department of Anesthesiology and Intensive Care Medicine, Northern State Medical University, Arkhangelsk, Russia
| | - Evgeny V Fominskiy
- Department of Anesthesiology and Intensive Care, Research Institute of Circulation Pathology, Novosibirsk, Russia
| | - Alexander M Karaskov
- Department of Cardiac Surgery, Research Institute of Circulation Pathology, Novosibirsk, Russia
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19
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Terada T, Johnson JA, Norris C, Padwal R, Qiu W, Sharma AM, Janzen W, Forhan M. Severe Obesity Is Associated With Increased Risk of Early Complications and Extended Length of Stay Following Coronary Artery Bypass Grafting Surgery. J Am Heart Assoc 2016; 5:JAHA.116.003282. [PMID: 27250114 PMCID: PMC4937271 DOI: 10.1161/jaha.116.003282] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Background Better understanding of the relationship between obesity and postsurgical adverse outcomes is needed to provide quality and efficient care. We examined the relationship of obesity with the incidence of early adverse outcomes and in‐hospital length of stay following coronary artery bypass grafting surgery. Methods and Results We analyzed data from 7560 patients who underwent coronary artery bypass grafting. Using body mass index (BMI; in kg/m2) of 18.5 to 24.9 as a reference, the associations of 4 BMI categories (25.0–29.9, 30.0–34.9, 35.0–39.9, and ≥40.0) with rates of operative mortality, overall early complications, subgroups of early complications (ie, infection, renal and pulmonary complications), and length of stay were assessed while adjusting for clinical covariates. There was no difference in operative mortality; however, higher risks of overall complications were observed for patients with BMI 35.0 to 39.9 (adjusted odds ratio 1.35, 95% CI 1.11–1.63) and ≥40.0 (adjusted odds ratio 1.56, 95% CI 1.21–2.01). Subgroup analyses identified obesity as an independent risk factor for infection (BMI 30.0–34.9: adjusted odds ratio 1.60, 95% CI 1.24–2.05; BMI 35.0–39.9: adjusted odds ratio 2.34, 95% CI 1.73–3.17; BMI ≥40.0: adjusted odds ratio 3.29, 95% CI 2.30–4.71). Median length of stay was longer with BMI ≥40.0 than with BMI 18.5 to 24.9 (median 7.0 days [interquartile range 5 to 10] versus 6.0 days [interquartile range 5 to 9], P=0.026). Conclusions BMI ≥40.0 was an independent risk factor for longer length of stay, and infection was a potentially modifiable risk factor. Greater perioperative attention and intervention to control the risks associated with infection and length of stay in patients with BMI ≥40.0 may improve patient care quality and efficiency.
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Affiliation(s)
- Tasuku Terada
- Department of Occupational Therapy, Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Jeffrey A Johnson
- School of Public Health, University of Alberta, Edmonton, Alberta, Canada
| | - Colleen Norris
- School of Public Health, University of Alberta, Edmonton, Alberta, Canada Faculty of Nursing, University of Alberta, Edmonton, Alberta, Canada Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada Cardiovascular Health and Stroke Strategic Clinical Network, Alberta Health Services, University of Alberta, Edmonton, Alberta, Canada
| | - Raj Padwal
- Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Weiyu Qiu
- School of Public Health, University of Alberta, Edmonton, Alberta, Canada
| | - Arya M Sharma
- Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Wonita Janzen
- Department of Occupational Therapy, Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Mary Forhan
- Department of Occupational Therapy, Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, Alberta, Canada
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20
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Costa VEA, Ferolla SM, Reis TOD, Rabello RR, Rocha EAV, Couto CMF, Couto JCF, Bento A. Impact of body mass index on outcome in patients undergoing coronary artery bypass grafting and/or valve replacement surgery. Braz J Cardiovasc Surg 2016; 30:335-42. [PMID: 26313724 PMCID: PMC4541780 DOI: 10.5935/1678-9741.20150027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 04/23/2015] [Indexed: 11/30/2022] Open
Abstract
Objective This study aimed to analyze the impact of body mass index on outcomes of 101
patients undergoing coronary artery bypass grafting, valve replacement, or
combined valve/ coronary artery bypass grafting surgery in a private hospital in
Belo Horizonte, Brazil. Methods This was a prospective cross-sectional study of patients undergoing cardiac
surgery from May 2009 to December 2012. All patients were followed up from the
first day of admission until discharge or death. Patients were divided into three
groups according to BMI: normal weight, overweight, and obese. The main outcome
measure was the association between BMI and postoperative morbidities and
mortality. Results Multivariate analysis identified obesity as an independent predictor of increased
risk of surgical reintervention (odds ratio [OR] 13.6; 95%CI 1.1 -
162.9; P=0.046) and reduced risk of bleeding (OR 0.05; 95% CI
0.09 - 0.69; P=0.025). Univariate analysis showed that obesity
was associated with increased frequency of wound dehiscence
(P=0.021). There was no association between BMI and other
complications or mortality in univariate analysis. There was also no association
between body mass index and duration of cardiopulmonary bypass, aortic clamping,
mechanical ventilation, and intensive care unit or hospital stay. Conclusion Obese individuals undergoing coronary artery bypass grafting, valve replacement,
or combined surgery have a higher postoperative risk of surgical reintervention
and lower chances of bleeding.
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21
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Chassé M, Mathieu P, Voisine P, Després JP, Pibarot P, Baillot R, Lellouche F, Poirier P. The Underestimated Belly Factor: Waist Circumference Is Linked to Significant Morbidity Following Isolated Coronary Artery Bypass Grafting. Can J Cardiol 2016; 32:327-35. [DOI: 10.1016/j.cjca.2015.06.031] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 06/24/2015] [Accepted: 06/24/2015] [Indexed: 02/03/2023] Open
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Buehler L, Fayfman M, Alexopoulos AS, Zhao L, Farrokhi F, Weaver J, Smiley-Byrd D, Pasquel FJ, Vellanki P, Umpierrez GE. The impact of hyperglycemia and obesity on hospitalization costs and clinical outcome in general surgery patients. J Diabetes Complications 2015; 29:1177-82. [PMID: 26355027 DOI: 10.1016/j.jdiacomp.2015.07.027] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 07/31/2015] [Accepted: 07/31/2015] [Indexed: 12/22/2022]
Abstract
BACKGROUND The impact of obesity on clinical outcomes and hospitalization costs in general surgery patients with and without diabetes (DM) is unknown. MATERIALS AND METHODS We reviewed medical records of 2451 patients who underwent gastrointestinal surgery at two university hospitals. Hyperglycemia was defined as BG ≥140 mg/dl. Overweight was defined by body mass index (BMI) between 25-29.9 kg/m(2) and obesity as a BMI ≥30 kg/m(2). Hospital cost was calculated using cost-charge ratios from Centers for Medicare and Medicaid Services. Hospital complications included a composite of major cardiovascular events, pneumonia, bacteremia, acute kidney injury (AKI), respiratory failure, and death. RESULTS Hyperglycemia was present in 1575 patients (74.8%). Compared to patients with normoglycemia, those with DM and non-DM with hyperglycemia had higher number of complications (8.9% vs. 35.8% vs. 30.0%, p<0.0001), longer hospital stay (5 days vs. 9 days vs. 9 days, p<0.0001), more readmissions within 30 days (9.3% vs. 18.8% vs. 17.2%, p<0.0001), and higher hospitalization costs ($20,273 vs. $79,545 vs. $72,675, p<0.0001). In contrast, compared to normal-weight subjects, overweight and obesity were not associated with increased hospitalization costs ($58,313 vs. $58,173 vs. $66,633, p=0.74) or risk of complications, except for AKI (11.9% vs. 14.8% vs. 20.5%, p<0.0001). Multivariate analysis revealed that DM (OR=4.4, 95% CI=2.8,7.0) or perioperative hyperglycemia (OR=4.1, 95% CI=2.7-6.2) were independently associated with increased risk of complications. CONCLUSION Hyperglycemia but not increasing BMI, in patients with and without diabetes undergoing gastrointestinal surgery was associated with a higher number of complications and hospitalization costs.
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Affiliation(s)
- Lauren Buehler
- Emory University Department of Medicine, Atlanta, GA, USA
| | - Maya Fayfman
- Emory University Department of Medicine, Atlanta, GA, USA
| | | | - Liping Zhao
- Emory University Rollins School of Public Health, Atlanta, GA, USA
| | | | - Jeff Weaver
- Information Technology, Emory University, Atlanta, GA, USA
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Guo Z, Zhang J, Jiang JH, Li LQ, Xiang BD. Obesity Does Not Influence Outcomes in Hepatocellular Carcinoma Patients following Curative Hepatectomy. PLoS One 2015; 10:e0125649. [PMID: 25965529 PMCID: PMC4428764 DOI: 10.1371/journal.pone.0125649] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Accepted: 03/23/2015] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Whether obesity affects surgical outcomes in patients with hepatocellular carcinoma (HCC) is controversial. Here we retrospectively evaluated the impact of obesity on outcomes in HCC patients after curative hepatectomy. METHODS Patients with Child-Pugh A liver function who underwent curative hepatectomy between 2006 and 2010 were categorized as obese (BMI ≥25 kg/m2, n = 68) and non-obese (<25 kg/m2, n = 242). To reduce interference from baseline differences between the two groups, propensity score-matched analysis was performed in the ratio 1:2 using a caliper width of 0.1. Surgical outcomes were compared for 61 obese and 115 non-obese patients. RESULTS Obese patients had higher levels of albumin and aspartate aminotransferase, and more solitary tumors compared to the non-obese patients (all P<0.05). In the propensity-matched cohort, baseline characteristics did not differ between the two groups (all P>0.05). Obese and non-obese patients had comparable 30-day mortality (1.6% vs. 2.6%, P = 1.000), 90-day mortality (3.3% vs. 4.3%, P = 1.000), and incidence of postoperative complications (19.7% vs. 18.3%, P = 0.819). Overall survival at 1, 3, and 5 years was similar for obese patients (83.6%, 63.6%, 41.6%) as for non-obese patients (80.9%, 65.9%, 49.1%; P = 0.358). Disease-free survival at 1, 3, and 5 years was also similar for obese patients (71.5%, 36.3%, 24.3%) as for non-obese ones (60.2%, 43.7%, 27.7%; P = 0.969). CONCLUSION Our propensity score-matched analysis strengthens the case that obesity does not adversely affect surgical outcomes of HCC patients undergoing curative hepatectomy.
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Affiliation(s)
- Zhe Guo
- Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, P.R. China
- Department of Thyroid and Breast Surgery, The Central Hospital of Wuhan, Wuhan, P.R. China
| | - Jun Zhang
- Department of Ultrasound, Wuhan NO. 1 Hospital, Wuhan, P.R. China
| | - Jing-Hang Jiang
- Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, P.R. China
- Department of General Surgery, The Second People’s Hospital of Jing Men, Jingmen, P.R. China
| | - Le-Qun Li
- Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, P.R. China
| | - Bang-De Xiang
- Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, P.R. China
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Tosello F, Florens E, Caruba T, Lebeller C, Mimoun L, Milan A, Fabiani JN, Boutouyrie P, Menasché P, Lillo-Lelouet A. Atrial fibrillation at mid-term after bioprosthetic aortic valve replacement – implications for anti-thrombotic therapy. Circ J 2014; 79:70-6. [PMID: 25482295 DOI: 10.1253/circj.cj-14-0684] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Little is known about mid-term (3-month) postoperative atrial fibrillation (MT-POAF) in patients treated with bioprosthetic aortic valve replacement (BAVR). The aim of this study was to describe the natural history, identify the predictors and investigate the potential consequences in terms of anti-thrombotic therapy. METHODS AND RESULTS During a longitudinal, prospective study, 219 patients were treated with BAVR early (7 days) and at mid-term postoperatively (30 and 90 days). POAF was monitored and risk factors were identified on logistic regression analysis. History of previous AF (OR, 3.08; 95% CI: 1.35-6.98), early POAF (OR, 5.93; 95% CI: 2.96-11.8), and BMI (per 5 kg/m(2): OR, 1.46; 95% CI: 1.03-2.09), were independent predictors for MT-POAF whereas sex, age and Euroscore were not. Results were identical when restricted to the 176 patients free from preoperative AF. In this subgroup, 36 patients (20.4%) had MT-POAF; 33 out of 174 (18.7%) would have required anticoagulation (CHA2DS2VASc score ≥ 1). Conversely, patients with BMI <27.7 and sinus rhythm at early follow-up had a very low risk of MT-POAF (OR, 0.16; 95% CI: 0.06-0.42). CONCLUSIONS There was a higher than expected occurrence of MT-POAF in patients treated with BAVR, particularly in overweight patients with early POAF. This raises the question of implementing an anti-thrombotic therapy in these patients at higher risk of delayed atrial arrhythmia.
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Sharma A, Vallakati A, Einstein AJ, Lavie CJ, Arbab-Zadeh A, Lopez-Jimenez F, Mukherjee D, Lichstein E. Relationship of body mass index with total mortality, cardiovascular mortality, and myocardial infarction after coronary revascularization: evidence from a meta-analysis. Mayo Clin Proc 2014; 89:1080-100. [PMID: 25039038 DOI: 10.1016/j.mayocp.2014.04.020] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Revised: 03/18/2014] [Accepted: 04/17/2014] [Indexed: 12/22/2022]
Abstract
OBJECTIVE To investigate the relationship of body mass index (BMI) with total mortality, cardiovascular (CV) mortality, and myocardial infarction (MI) after coronary revascularization procedures (coronary artery bypass grafting [CABG] and percutaneous coronary intervention [PCI]). PATIENTS AND METHODS Systematic search of studies was conducted using PubMed, CINAHL, Cochran CENTRAL, Scopus, and the Web of Science databases. We identified studies reporting the rate of MI, CV mortality, and total mortality among coronary artery disease patients' postcoronary revascularization procedures in various BMI categories: less than 20 (underweight), 20-24.9 (normal reference), 25-29.9 (overweight), 30-34.9 (obese), and 35 or more (severely obese). Event rates were compared using a random effects model assuming interstudy heterogeneity. RESULTS A total of 36 studies (12 CABG; 26 PCI) were selected for final analyses. The risk of total mortality (relative risk [RR], 2.59; 95% CI, 2.09-3.21), CV mortality (RR, 2.67; 95% CI, 1.63-4.39), and MI (RR, 1.79; 95% CI, 1.28-2.50) was highest among patients with low BMI at the end of a mean follow-up period of 1.7 years. The risk of CV mortality was lowest among overweight patients (RR, 0.81; 95% CI, 0.68-0.95). Increasing degree of adiposity as assessed by BMI had a neutral effect on the risk of MI for overweight (RR, 0.92; 95% CI, 0.84-1.01), obese (RR, 0.99; 95% CI, 0.85-1.15), and severely obese (RR, 0.93; 95% CI, 0.78-1.11) patients. CONCLUSION After coronary artery disease revascularization procedures (PCI and CABG), the risk of total mortality, CV mortality, and MI was highest among underweight patients as defined by low BMI and CV mortality was lowest among overweight patients.
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Affiliation(s)
- Abhishek Sharma
- Department of Medicine, Maimonides Medical Center, Brooklyn, NY.
| | - Ajay Vallakati
- Division of Cardiology, University of Kansas Medical Center, Kansas City
| | - Andrew J Einstein
- Division of Cardiology, Department of Medicine, and Department of Radiology, Columbia University Medical Center, New York, NY
| | - Carl J Lavie
- Department of Cardiovascular Diseases, John Ochsner Heart and Vascular Institute, Ochsner Clinical School, the University of Queensland School of Medicine, New Orleans, LA; Department of Preventive Medicine, Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge
| | - Armin Arbab-Zadeh
- Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD
| | | | | | - Edgar Lichstein
- Department of Medicine, Maimonides Medical Center, Brooklyn, NY
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The impact of body mass index on short- and long-term outcomes in patients undergoing coronary artery graft bypass. PLoS One 2014; 9:e95223. [PMID: 24752323 PMCID: PMC3994030 DOI: 10.1371/journal.pone.0095223] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2013] [Accepted: 03/24/2014] [Indexed: 11/29/2022] Open
Abstract
Objective This study was designed to investigate the impact of body mass index (BMI) on short- and long-term outcomes after initial revascularization with coronary artery bypass graft (CABG) surgery. Methods 4916 Chinese who consecutively underwent isolated, primary CABG at the Cardiovascular Institute of Fuwai Hospital from January 1, 1999 to December 31, 2005 were included in this study. They were classified based on BMI as follows: underweight: <18.5 kg/m2, normal weight: 18.5 to 23.9 kg/m2, overweight: 24 to 27.9 kg/m2, obesity: 28 to 32 kg/m2, and severe obesity: >32 kg/m2. Short (in-hospital) and long-term (5-years) major post-operative complications and mortalities were compared among various BMI groups after initial revascularization. Results Multiple regression analysis of five years follow-up of clinical end points indicated that various BMI groups were not associated with significant differences in 5 years mortality and MACCE, however, old age, smoking, hypertension, myocardial infarction and heart failure were the risk factor for the mortality. Conclusions In this large-scale study with long term follow-up after primary CABG in an exclusively ethnic Chinese population, we found that different BMI groups were not significantly associated with 5-years mortality and MACCE, however, old age, smoking, hypertension, myocardial infarction and heart failure were the risk factors of post-operative mortality, and old age, hypertension and heart failure increased the rate of MACCE.
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Melis M, Weber J, Shridhar R, Hoffe S, Almhanna K, Karl RC, Meredith KL. Body mass index and perioperative complications after oesophagectomy for adenocarcinoma: a systematic database review. BMJ Open 2013; 3:bmjopen-2012-001336. [PMID: 23645908 PMCID: PMC3646172 DOI: 10.1136/bmjopen-2012-001336] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVE Given the increasing rate of obesity, the effects of excessive body weight on surgical outcomes constitute a relevant quality of care concern. Our aim was to determine the relationship between preoperative body mass index (BMI) on perioperative complications after oesophagectomy for adenocarcinoma of the oesophagus. DESIGN Retrospective database review. SETTING Single institution high volume oncological tertiary care referral centre. PARTICIPANTS From our comprehensive oesophageal cancer database consisting of 709 patients, we stratified patients according to BMI: 155 normal-weight (BMI 20-24), 198 overweight (BMI 25-29) and 187 obese (BMI ≥30) patients. INTERVENTIONS All patients underwent oesophagectomy for cancer. PRIMARY AND SECONDARY OUTCOME MEASURES Incidences of preoperative risk factors and perioperative complications in each group were analysed. RESULTS The patient cohort consisted of 474 men and 66 women with a mean age of 64.3 years (28-86). They were similar in terms of demographics and comorbidities, with the exception of a younger age (65.2 vs 65.4 vs 62.5 years, p=0.0094), and a higher incidence of diabetes (9.1% vs 13.2% vs 22.7%, p=0.001), hiatal hernia (16.8% vs 17.8% vs 28.8%, p=0.009) and Barrett oesophagus (24.7% vs 25.4% vs 36.2%, p=0.025) for obese patients. The type of surgery performed, overall blood loss, extent of lymphadenectomy, R0 resections and complications were not influenced by BMI on univariate and multivariate analysis. CONCLUSIONS In our experience, patients with an elevated BMI and oesophageal adenocarcinoma do not experience an increase in morbidity and mortality after oesophagectomy as stated in previous reports, when performed at a high volume centre. Additionally, BMI did not affect the quality of oncological resection as determined by number of harvested lymph-nodes and rates of R0 resections. TRIAL REGISTRATION MCC 15030, IRB 105286.
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Affiliation(s)
- Marcovalerio Melis
- Department of Surgery, New York University Medical School, New York, New York, USA
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King-Shier KM, LeBlanc P, Mather C, Sandham S, Seneviratne C, Maitland A. Weight and patients' decision to undergo cardiac surgery. Clin Nurs Res 2012; 22:228-49. [PMID: 23008019 DOI: 10.1177/1054773812459753] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Obese patients are less likely to have cardiac surgery than normal weight patients. This could be due to physician or patient decision-making. We undertook a qualitative descriptive study to explore the influence of obesity on patients' decision-making to have cardiac surgery. Forty-seven people referred for coronary artery bypass graft (CABG) surgery were theoretically sampled. Twelve people had declined cardiac surgery. Participants underwent in-depth interviews aimed at exploring their decision-making process. Data were analyzed using conventional content analysis. Though patients' weight did not play a role in their decision, their relationship with their cardiologist/surgeon, the rapidity and orchestration of the diagnosis and treatment, appraisal of risks and benefits, previous experience with other illness or others who had cardiac surgery, and openness to other alternatives had an impact. It is possible that there is a lack of comfort or acknowledgment by all parties in discussing the influence of weight on CABG surgery risks.
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Risk Factors for Postoperative Respiratory Mortality and Morbidity in Patients Undergoing Coronary Artery Bypass Grafting. Anesth Pain Med 2012. [DOI: 10.5812/anesthpain.5228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Rajaei S, Dabbagh A. Risk factors for postoperative respiratory mortality and morbidity in patients undergoing coronary artery bypass grafting. Anesth Pain Med 2012; 2:60-5. [PMID: 24223339 PMCID: PMC3821115 DOI: 10.5812/aapm.5228] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2012] [Revised: 06/18/2012] [Accepted: 06/25/2012] [Indexed: 11/29/2022] Open
Abstract
ABSTRACT Nowadays, coronary artery bypass grafting (CABG) is considered to be one of the most common surgical procedures. This procedure has been the main topic in many clinical research studies, which have assessed the effect of the procedure on patients’ outcomes. Like other surgical procedures, this procedure is also accompanied by a number of unwanted complications, including those of the respiratory system. Since the respiratory system plays an integral role in defining the clinical outcome of patients, improvements in studies that can assess and predict clinical outcomes of the respiratory system, assume greater importance. There are a number of predictive models which can assess patients in the preoperative period and introduce a number of risk factors, which could be considered as prognostic factors for patients undergoing CABG. The respiratory system is among the clinical systems that are assessed in many prediction scoring systems. This review assesses the main studies which have evaluated the possible risk factors for postoperative respiratory mortality and morbidity, in patients undergoing CABG.
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Affiliation(s)
- Samira Rajaei
- Department of lab Sciences, School of Allied Medicine, Iran University of Medical Sciences, Tehran, IR Iran
| | - Ali Dabbagh
- Anesthesiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran
- Corresponding author: Ali Dabbagh, Anesthesiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran. Tel.: +98-2122432572, Fax: +98-2122432572, E-mail:
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Mahesh B, Choong CK, Goldsmith K, Gerrard C, Nashef SA, Vuylsteke A. Prolonged Stay in Intensive Care Unit Is a Powerful Predictor of Adverse Outcomes After Cardiac Operations. Ann Thorac Surg 2012; 94:109-16. [DOI: 10.1016/j.athoracsur.2012.02.010] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2011] [Revised: 01/29/2012] [Accepted: 02/06/2012] [Indexed: 12/11/2022]
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Obesity and postoperative early complications in open heart surgery. J Anesth 2012; 26:702-10. [DOI: 10.1007/s00540-012-1393-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2011] [Accepted: 04/04/2012] [Indexed: 11/25/2022]
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Tung HH, Tseng LH, Wei J, Lin CH, Wang TJ, Liang SY. Food Pattern and Quality of Life in Metabolic Syndrome Patients who Underwent Coronary Artery Bypass Grafting in Taiwan. Eur J Cardiovasc Nurs 2011; 10:205-12. [DOI: 10.1016/j.ejcnurse.2010.05.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2010] [Revised: 05/21/2010] [Accepted: 05/26/2010] [Indexed: 10/19/2022]
Abstract
Metabolic syndrome is associated with poor operative outcomes of coronary artery bypass grafting surgery (CABG). A healthy food pattern for metabolic syndrome patients is necessary not only in the initial stage to prevent cardiovascular disease but for those who experience cardiovascular problems and undergo heart surgery. Empirical studies that explore food pattern and quality of life metabolic syndrome patients who undergo CABG are lacking. Therefore, the objectives of this study are to explore the food pattern and quality of life of metabolic syndrome patients who undergo CABG and to examine the relationship between these two variables. A descriptive, correlational and cross section design was conducted. Through convenience sampling, 104 patients were recruited. Data were collected through three instruments: a demographic questionnaire; the Chinese Food Frequency Questionnaire-Short Form (Short C-FFQ), used to assess food pattern; and the Taiwanese version of the Medical Outcomes Study Short Form 36-Health Survey (SF-36), used to assess quality of life. Descriptive analysis, one-way analysis of variance (ANOVA) and Pearson correlation were used to analyze the data. The results indicated that patients who ate fruit more frequently tended to have a better quality of life, while the intake of fried food was more frequently associated with a poor quality of life. The use of these data gives the health care provider a better understanding of food pattern and their impact on quality of life in this population. Such an understanding can be used to develop targeted interventions to promote health in this and in other populations.
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Affiliation(s)
- Heng-Hsin Tung
- National Taipei College of Nursing, 365 Ming Te Road PeiTou, Taipei 112, Taiwan, ROC
- Tungs' Taichung MetroHabor Hospital, Taiwan, 365 Ming Te Road PeiTou, Taipei 112, Taiwan, ROC
| | - Li-Hua Tseng
- Taipei Veterans General Hospital, 201, Sec. 2, Shih-Pai Road, PeiTou, Taipei 11217, Taiwan, ROC
| | - Jeng Wei
- Heart Center of Chen-Hsin Hospital, 45 Cheng-Hsin St, PeiTou, Taipei 112, Taiwan, ROC
| | - Cheng-Hsin Lin
- Department of Surgery, Chi Mei Medical Center, Taiwan, ROC
| | - Tsae-Jyy Wang
- National Taipei College of Nursing, 365 Ming Te Road PeiTou, Taipei 112, Taiwan, ROC
| | - Shu-Yuan Liang
- National Taipei College of Nursing, 365 Ming Te Road PeiTou, Taipei 112, Taiwan, ROC
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Donohoe CL, Feeney C, Carey MF, Reynolds JV. Perioperative evaluation of the obese patient. J Clin Anesth 2011; 23:575-86. [DOI: 10.1016/j.jclinane.2011.06.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2010] [Revised: 06/13/2011] [Accepted: 06/20/2011] [Indexed: 02/08/2023]
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Abstract
Obesity has become a major health problem in the United States and is well known to be a risk factor for the development of cardiovascular disease. Many clinicians perceive obesity, particularly severe or morbid obesity, to be associated with increased risk for mortality and morbidity following coronary artery bypass graft (CABG) surgery. This article provides a review of the literature related to mortality and morbidity, including the impact of diabetes, risk for acute respiratory failure, and sternal wound infection associated with obese patients undergoing CABG surgery. Implications for nursing practice are addressed with recommendations for practice in this patient population.
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Alam M, Siddiqui S, Lee VV, Elayda MA, Nambi V, Yang EY, Jneid HM, Wilson JM, Ballantyne CM, Virani SS. Isolated coronary artery bypass grafting in obese individuals: a propensity matched analysis of outcomes. Circ J 2011; 75:1378-85. [PMID: 21498907 DOI: 10.1253/circj.cj-10-1129] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND There is conflicting data regarding the impact of obesity on morbidity and mortality in patients undergoing isolated coronary artery bypass grafting (CABG). METHODS AND RESULTS Retrospective cohort analysis of patients who underwent CABG from January 1, 1995, through July 31, 2010 was performed. Patients were classified as obese or non-obese (body mass index ≥ 30.0 kg/m(2) and <30.0 kg/m(2), respectively). The primary outcome was in-hospital mortality. Secondary outcomes included postoperative respiratory failure, postoperative stroke, postoperative myocardial infarction, sternal and leg wound infections, postoperative atrial fibrillation, postoperative ventricular tachycardia, postoperative renal failure and length of hospital stay. Propensity-matched stepwise multivariable logistic regression was performed. Of 13,115 patients, 4,619 (35.2%) were obese. In the propensity-matched logistic regression models (n = 8,442), obesity was not associated with postoperative mortality (odds ratio = 1.13, 95% confidence interval 0.86-1.48). However, obesity was associated with postoperative respiratory failure, postoperative renal insufficiency, sternal wound infection, and leg wound infection. Obesity was also associated with a decreased risk of postoperative bleeding and re-operation from bleeding. CONCLUSIONS Obesity was associated with an increased risk of postoperative respiratory failure, postoperative renal failure, and surgical site infections. However, obesity was not associated with in-hospital mortality in patients undergoing CABG.
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Affiliation(s)
- Mahboob Alam
- Section of Cardiology, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA.
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Zhang X, Wu Z, Peng X, Wu A, Yue Y, Martin J, Cheng D. Prognosis of Diabetic Patients Undergoing Coronary Artery Bypass Surgery Compared With Nondiabetics: A Systematic Review and Meta–analysis. J Cardiothorac Vasc Anesth 2011; 25:288-98. [DOI: 10.1053/j.jvca.2010.09.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2010] [Indexed: 12/21/2022]
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Billings FT, Pretorius M, Siew ED, Yu C, Brown NJ. Early postoperative statin therapy is associated with a lower incidence of acute kidney injury after cardiac surgery. J Cardiothorac Vasc Anesth 2011; 24:913-20. [PMID: 20599398 DOI: 10.1053/j.jvca.2010.03.024] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2009] [Indexed: 12/25/2022]
Abstract
OBJECTIVE To test the hypothesis that perioperative statin use reduces acute kidney injury (AKI) after cardiac surgery. DESIGN A retrospective analysis of prospectively collected data from an ongoing clinical trial. SETTING A quaternary-care university hospital. PARTICIPANTS Three hundred twenty-four adult elective cardiac surgery patients. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS The authors assessed the association of preoperative statin use, early postoperative statin use, and acute statin withdrawal with the incidence of AKI. Early postoperative statin use was defined as statin treatment within the first postoperative day. Statin withdrawal was defined as the discontinuation of preoperative statin treatment before surgery until at least postoperative day 2. Logistic regression and propensity score modeling were used to control for AKI risk factors. Sixty-eight of 324 patients (21.0%) developed AKI. AKI patients stayed in the hospital longer (p = 0.03) and were more likely to develop pneumonia (p = 0.002) or die (p = 0.001). A higher body mass index (p = 0.003), higher central venous pressure (p = 0.03), and statin withdrawal (27.4 v 14.7%, p = 0.046) were associated with a higher incidence of AKI, whereas early postoperative statin use was protective (12.5% v 23.8%, p = 0.03). Preoperative statin use did not affect the risk of AKI. In multivariate logistic regression, age (p = 0.03), male sex (p = 0.02), body mass index (p < 0.001), and early postoperative statin use (odds ratio = 0.32; 95% confidence interval, 0.14-0.72; p = 0.006) independently predicted AKI. Propensity score-adjusted risk assessment confirmed the association between early postoperative statin use and reduced AKI (odds ratio = 0.30; 95% confidence interval, 0.13-0.70; p = 0.005). CONCLUSIONS Early postoperative statin use is associated with a lower incidence of AKI among both chronic statin users and statin-naive cardiac surgery patients.
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Melis M, Weber JM, McLoughlin JM, Siegel EM, Hoffe S, Shridhar R, Turaga KK, Dittrick G, Dean EM, Karl RC, Meredith KL. An elevated body mass index does not reduce survival after esophagectomy for cancer. Ann Surg Oncol 2011; 18:824-31. [PMID: 20865331 PMCID: PMC4623586 DOI: 10.1245/s10434-010-1336-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2010] [Indexed: 12/31/2022]
Abstract
BACKGROUND Incidences of esophageal cancer and obesity are both rising in the United States. The aim of this study was to determine the influence of elevated body mass index on outcomes after esophagectomy for cancer. METHODS Overall and disease-free survivals in obese (BMI ≥ 30), overweight (BMI 25-29), and normal-weight (BMI 20-24) patients undergoing esophagectomy constituted the study end points. Survivals were calculated by the Kaplan-Meier method, and differences were analyzed by log rank method. RESULTS The study included 166 obese, 176 overweight, and 148 normal-weight patients. These three groups were similar in terms of demographics and comorbidities, with the exception of younger age (62.5 vs. 66.2 vs. 65.3 years, P = 0.002), and higher incidence of diabetes (23.5 vs. 11.4 vs. 10.1%, P = 0.001) and hiatal hernia (28.3 vs. 14.8 vs. 20.3%, P = 0.01) in obese patients. Rates of adenocarcinoma histology were higher in obese patients (90.8 vs. 90.9 vs. 82.5%, P = 0.03). Despite similar preoperative stage, obese patients were less likely to receive neoadjuvant treatment (47.6 vs. 54.5 vs. 66.2%, P = 0.004). Response to neoadjuvant treatment, type of surgery performed, extent of lymphadenectomy, rate of R0 resections, perioperative complications, and administration of adjuvant chemotherapy were not influenced by BMI. At a median follow-up of 25 months, 5-year overall and disease-free survivals were longer in obese patients (respectively, 48, 41, 34%, P = 0.01 and 48, 44, 34%, P = 0.01). CONCLUSIONS In our experience, an elevated BMI did not reduce overall and disease-free survivals after esophagectomy for cancer.
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Affiliation(s)
- Marcovalerio Melis
- Division of Surgical Oncology, New York University School of Medicine, New York, New York, USA.
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Doyle SL, Lysaght J, Reynolds JV. Obesity and post-operative complications in patients undergoing non-bariatric surgery. Obes Rev 2010; 11:875-86. [PMID: 20025695 DOI: 10.1111/j.1467-789x.2009.00700.x] [Citation(s) in RCA: 108] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
As the prevalence of obesity continues to rise in society, an increasing number of patients undergoing non-bariatric surgery will be obese. Obesity is known to increase morbidity and mortality in the general population and thus is perceived as a risk factor for adverse post-surgical outcomes. This association is not clear-cut, however, and there is a lack of consensus in the literature on the risk between obesity and specific complications, in particular relating to infection, wound healing, respiratory and venous thromboembolism. The paucity of studies, as well as a lack of consistency of definition of obesity, with an over-reliance on body mass index rather than body composition analysis, may underlie this confusion. Emerging concepts position central/visceral adipose tissue as potentially key to the pathogenesis of the comorbidities associated with obesity, thus this article reviews emerging research investigating the association between visceral obesity, the metabolic syndrome and resulting post-operative complications. It is hypothesized that the state of chronic inflammation and dysmetabolism observed in visceral obese patients negatively influences post-operative outcomes and represents a potential target for pharmaconutrition. The need for further research investigating the influence of visceral adiposity on immune function post surgery and its impact on post-operative morbidity and mortality is highlighted.
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Affiliation(s)
- S L Doyle
- Department of Surgery, Institute of Molecular Medicine, Trinity Centre for Health Sciences, St James's Hospital and Trinity College, Dublin, Ireland
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Tokmakoglu H. Operative and early results of coronary artery bypass grafting in female patients in different body mass indexes. J Cardiothorac Surg 2010; 5:119. [PMID: 21110862 PMCID: PMC3006378 DOI: 10.1186/1749-8090-5-119] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2010] [Accepted: 11/26/2010] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Female gender has been reported to be an independent risk factor for coronary artery bypass grafting (CABG) in European System for Cardiac Risk Evaluation. The effect of the body size on the CABG outcome is less clear. There is ongoing debate about obesity as a risk factor for adverse outcomes after cardiovascular procedures. The goal of this retrospective study is to evaluate the in hospital and early postoperative outcomes in severe obese, obese and normal-slightly obese female patients after CABG. METHODS In a four year period a total of 427 female patients underwent isolated CABG under cardiopulmonary bypass. The patients were allocated into three groups according to the Body Mass Index (BMI) as follows; group 1: severe obese patients; BMI > 35, group 2: obese patients; 30≤BMI≤35, group 3: normal-slightly obese patients; BMI < 30. RESULTS The patients in group 3 were older than the group1 and group 2 (65,6 ± 8,3 year vs 63,01 ± 8,0 and 63,57 ± 8,4 year p < 0,05). In group 1 diabetic patients were more than in group 2 and group 3 respectively (54,4% vs 43,4% and 40%, p < 0,05). Urgent operation was more in group 1 than in group 2 and 3 respectively (37,6% vs 17,2% and 21,2% p < 0,05). The patients in group 3 had significantly greater postoperative drainage at 24 h compared with values in group 1 and group 2 (647 ± 142 ml vs. 539 ± 169 ml and 582 ± 133 ml, p < 0,05). Mortality rate in group 1 was 0,8%, 0% in group 2 and 1,2% in group 3 respectively. Wound problem has occurred in 41 patients (9,6%).The percentage of postoperative wound problems was higher in group 1 but did not show statiscially difference. Following discharge a total of 43 (10,1%) patients re-hospitalized within 30 days. Re-hospitalization rate was 16,1% in group1, 9,8% in group 2 and 6,5% in group 3 (p < 0,05). CONCLUSION This study may give an aspect for evaluations of the inhospital-early mortality and morbidity after CABG in female patients in different BMI. Severe obesity is not a risk factor in-hospital mortality in female patients. However, severe obese female patients appear to have more wound problems and re-hospitalization rate after CABG compared to obese and normal-slightly obese patients.
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Affiliation(s)
- Hilmi Tokmakoglu
- Cardiovascular Surgery Department, Ozel Tekden Hastanesi Kocasinan-Kayseri, Turkey.
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Tung HH, Chen YC, Wei J, Liu CY, Chang CY, Wang TJ. Leisure physical activity and quality of life after coronary artery bypass graft surgery for patients with metabolic syndrome in Taiwan. Heart Lung 2010; 39:410-20. [PMID: 20561890 DOI: 10.1016/j.hrtlng.2009.10.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2009] [Revised: 09/17/2009] [Accepted: 10/03/2009] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The purpose of this correlational study was to explore the physical activity and quality of life of postcoronary artery bypass graft patients with metabolic syndrome. METHODS Seventy patients were recruited via purposive sampling. Data were collected through three instruments: a demographic questionnaire, the Modifiable Activity Questionnaire, and the Medical Outcomes Study Short Form 36-Health Survey. The data were analyzed using SPSS software, version 17.0 (SPSS, Inc., Chicago, IL), and data analysis included percentages, means, standard deviations, correlation coefficients, and forward regressions. RESULTS Patients with a higher level of physical activity tended to have better quality of life. Our findings also indicated that the total Modifiable Activity Questionnaire score and age explained 15.1% of the variance in the physical component summary of quality of life, and 13.6% of the variance in the mental component summary of quality of life. CONCLUSION Based on this research, nursing staff should develop physical activity-related interventions to promote quality of life.
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Affiliation(s)
- Heng-Hsin Tung
- National Taipei College of Nursing, Tungs' Taichung MetroHarbor Hospital, PeiTou, Taipei, Taiwan, Republic of China.
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Candiotti K, Sharma S, Shankar R. Obesity, obstructive sleep apnoea, and diabetes mellitus: anaesthetic implications. Br J Anaesth 2009; 103 Suppl 1:i23-30. [DOI: 10.1093/bja/aep294] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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Grande L. [Improving safety in the operating room reduces hospital mortality]. Cir Esp 2009; 86:329-30. [PMID: 19783243 DOI: 10.1016/j.ciresp.2009.07.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2009] [Accepted: 07/21/2009] [Indexed: 11/18/2022]
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Kajimoto K, Kasai T, Miyauchi K, Hirose H, Yanagisawa N, Yamamoto T, Takazawa K, Niinami H, Hosoda Y, Daida H, Amano A. Metabolic syndrome predicts 10-year mortality in non-diabetic patients following coronary artery bypass surgery. Circ J 2009; 72:1481-6. [PMID: 18724026 DOI: 10.1253/circj.cj-07-0928] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Metabolic syndrome (MetS) is a risk factor for cardiovascular disease and mortality, but, the relationship between MetS and survival after coronary artery bypass grafting (CABG) remains unclear. METHODS AND RESULTS The outcomes of patients with and without MetS were analyzed. Patients who had undergone CABG at Juntendo University Hospital between January 1984 and December 1992 were enrolled. The survival search was performed by the end of 2000. The patients were categorized by the existence of preoperative MetS using the modified American Heart Association/National Heart, Lung, and Blood Institute (AHA/NHLBI) definition with body mass index instead of waist circumference. MetS was present in 551 (46.6%) patients and absent in 632 (53.4%). Preoperative MetS was associated with long-term poor prognosis in terms of all-cause death (hazard ratio (HR) 1.34; 95% confidence interval (CI) 1.03-1.74; p=0.028) and cardiac death (HR 2.31; 95% CI 1.36-3.92; p=0.002) in non-diabetic patients. These differences in the mortality of the 2 groups were more obvious after 10 years. However, among the patients with diabetes, the presence of MetS was not related to long-term mortality. CONCLUSIONS Preoperative MetS predicted increased all-cause and cardiac mortality, especially after 10 years, in non-diabetic patients undergoing CABG.
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Affiliation(s)
- Kan Kajimoto
- Department of Cardiovascular Surgery, Juntendo University School of Medicine, Social Insurance Chuo General Hospital, Tokyo, Japan
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Ahmed I, House CM, Nelson WB. Predictors of inotrope use in patients undergoing concomitant coronary artery bypass graft (CABG) and aortic valve replacement (AVR) surgeries at separation from cardiopulmonary bypass (CPB). J Cardiothorac Surg 2009; 4:24. [PMID: 19519919 PMCID: PMC2706226 DOI: 10.1186/1749-8090-4-24] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2009] [Accepted: 06/12/2009] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Left ventricular dysfunction is common after coronary artery bypass graft and valve replacement surgeries and is often treated with inotropic drugs to maintain adequate hemodynamic status. In this study, we aimed to identify the demographic, clinical, laboratory, echocardiographic and hemodynamic factors that are associated with use of inotropic drugs in patients undergoing concomitant coronary artery bypass graft and aortic valve replacement surgery. METHODS The study included 97 patients who had undergone concomitant coronary artery bypass graft and aortic valve replacement at Regions Hospital, University of Minnesota Medical School from January 2006 to December 2008. All data were collected retrospectively after reviewing electronic medical records. Inotropic support was defined as the use of dopamine [greater than or equal to] 5 ug/kg/min; any dose of epinephrine, norepinephrine, dobutamine, and milrinone at the separation from cardiopulmonary bypass. RESULTS Inotropic support was used in a total of 50 patients (52%) at the separation from cardiopulmonary bypass. Average age of the patients requiring inotropic support was 72.2 +/- 8.8 years. The study identified four significant, independent predictors of inotrope use: (1) Cardiac index [less than or equal to] 2.5 L/min/m2, (2) LVEDP [greater than or equal to] 20 mm Hg, (3) LVEF [less than or equal to] 40%, and (4) CKD stage 3 to 5. CONCLUSION We identified four independent risk factors for postoperative use of inotropic support in patients undergoing concomitant coronary artery bypass graft and arotic valve replacement surgery at the separation from cardiopulmonary bypass. The study results will be helpful to prospectively identify patients who will likely to require inotropic support at the separation from cardiopulmonary bypass.
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Affiliation(s)
- Imdad Ahmed
- Department of Hospital Medicine, Regions Hospital, University of Minnesota Medical School, St Paul, Minnesota, USA.
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Tolpin DA, Collard CD, Lee VV, Elayda MA, Pan W. Obesity is associated with increased morbidity after coronary artery bypass graft surgery in patients with renal insufficiency. J Thorac Cardiovasc Surg 2009; 138:873-9. [PMID: 19660351 DOI: 10.1016/j.jtcvs.2009.02.019] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2008] [Revised: 11/04/2008] [Accepted: 02/02/2009] [Indexed: 11/19/2022]
Abstract
OBJECTIVE Although obesity is a major risk factor for cardiovascular disease, it is not clear whether obesity increases the risk of postoperative morbidity and mortality in patients undergoing coronary artery bypass grafting surgery. Increasing evidence suggests that both obesity and renal insufficiency are associated with increased systemic inflammation, thrombogenicity, and endothelial dysfunction. Cardiac surgical patients with comorbid obesity and renal insufficiency might thus be at greater risk for systemic proinflammatory and thrombotic states, which in turn might increase the risk of adverse perioperative outcomes. We investigated the influence of obesity on adverse postoperative outcomes after coronary artery bypass grafting surgery in patients with and without renal insufficiency. METHODS A retrospective cohort study was performed of patients (n = 10,863) undergoing primary coronary artery bypass grafting surgery with cardiopulmonary bypass between January 1995 and June 2005. Patients with preoperative renal insufficiency (n = 1385) and patients with preoperative normal renal function (n = 9478) were further classified as obese (body mass index, > or =30 kg/m(2)) or nonobese (body mass index, 18.5-29.9 kg/m(2)). Multivariate, stepwise logistic regression was performed, controlling for demographic factors, medications, and perioperative risk factors to determine whether obesity is independently associated with an increased risk of adverse postoperative outcomes after coronary artery bypass grafting surgery in patients with or without renal insufficiency. RESULTS Obese patients with preoperative renal insufficiency had higher rates of postoperative myocardial infarction (5.9% vs 3.4%) and low cardiac output syndrome (24.5% vs 18.6%) and increased hospital stay (14.9 +/- 13.7 vs 13.2 +/- 13.0 days) than nonobese patients with preoperative renal insufficiency (all outcomes, P < .05). Multivariate analysis revealed that obese patients with preoperative renal insufficiency were independently associated with an increased risk of postoperative myocardial infarction (odds ratio, 1.82; 95% confidence interval, 1.07-3.07; P < .05) and low cardiac output syndrome (odds ratio, 1.53; 95% confidence interval, 1.15-2.03; P < .01) and increased hospital stay (P < .05). In contrast, obese patients with normal preoperative renal function were independently associated only with an increased risk of postoperative sternal wound infection (odds ratio, 2.55; 95% confidence interval, 1.40-4.67; P < .01) and leg wound infection (odds ratio, 2.27; 95% confidence interval, 1.71-3.02; P < .01). CONCLUSION Obesity is an independent risk factor for increased cardiovascular morbidity and prolonged hospital stay in patients with preoperative renal insufficiency undergoing primary coronary artery bypass grafting surgery.
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Affiliation(s)
- Daniel A Tolpin
- Department of Anesthesiology, Baylor College of Medicine, Houston, TX 77030, USA
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Patients with Type 2 Diabetes Undergoing Coronary Artery Bypass Graft Surgery: Predictors of Outcomes. Eur J Cardiovasc Nurs 2009; 8:48-56. [DOI: 10.1016/j.ejcnurse.2008.04.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2007] [Revised: 04/08/2008] [Accepted: 04/15/2008] [Indexed: 01/04/2023]
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Todd Miller M, Lavie CJ, White CJ. Impact of obesity on the pathogenesis and prognosis of coronary heart disease. ACTA ACUST UNITED AC 2009; 3:162-7. [PMID: 18983333 DOI: 10.1111/j.1559-4572.2008.00004.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Obesity has a significant adverse effect on coronary heart disease (CHD) risk factors, including hypertension, dyslipidemia, and the metabolic syndrome/diabetes. Obesity is an independent risk factor for CHD events; however, obese patients with CHD generally have a more favorable prognosis, with the worst prognosis associated with either underweight or morbidly obese patients. In this manuscript, the authors review the impact of obesity on overall CHD risk as well as the prognosis of obese patients with established CHD.
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Affiliation(s)
- M Todd Miller
- Ochsner Heart and Vascular Institute, Ochsner Medical Center, New Orleans, LA70121-2483, USA
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