1
|
Ding CY, Qi WH, An YJ, Yuan X, Yao YT. The effect of body mass index on short-term outcomes in patients undergoing off-pump coronary artery bypass grafting surgery: a retrospective study from a single cardiovascular center. J Cardiothorac Surg 2024; 19:86. [PMID: 38342892 PMCID: PMC10860294 DOI: 10.1186/s13019-024-02586-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 01/30/2024] [Indexed: 02/13/2024] Open
Abstract
OBJECTIVE This study is designed to investigate the impact of body mass index (BMI) on the short-term outcomes of patients undergoing off-pump coronary artery bypass graft (OPCAB) surgery. METHODS Data was obtained from 1006 Chinese patients who underwent isolated, primary OPCAB at a high-traffic cardiovascular center during 2020. Subjects were categorized, by BMI, into a low & normal weight (LN) group (BMI < 24 kg/m2), an overweight (OVW) group (24 ≤ BMI < 28 kg/m2), and an obese (OBS) group (BMI ≥ 28 kg/m2). Information pertaining to patients' short-term outcomes (including incidence of mortality and morbidities; duration of postoperative mechanical ventilation; length of stay in the ICU and hospital; postoperative bleeding; etc.) were extracted, and the data from each group were compared. RESULTS The incidences of in-hospital mortality and morbidities were similar for all three groups. The volume of fluid infusion, postoperative bleeding within 24 h and total bleeding in LN group were higher than those in the OBS group (P < 0.001). The hemoglobin level was lower in the LN group than that in the OBS group (P < 0.001). Duration of mechanical ventilation and length of stay in the ICU in the LN group were longer than those in the OBS group (P < 0.001). CONCLUSIONS Our results demonstrate that BMI is not significantly related with short-term outcomes in OPCAB patients. However, we suggest that OPCAB patients with low-normal BMI are more susceptible to post-operative blood loss.
Collapse
Affiliation(s)
- Chen-Ying Ding
- Department of Anesthesiology, Hohhot First Hospital, Hohhot, 010030, Inner Mongolia Autonomous Region, China
- Department of Anesthesiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College and Chinese Academy of Medical Sciences, No. 167, Beilishi Road, Xicheng District, Beijing, 100037, China
| | - Wen-Hui Qi
- Department of Anesthesiology, Harrison International Peace Hospital, Hengshui, 053000, Hebei Province, China
- Department of Anesthesiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College and Chinese Academy of Medical Sciences, No. 167, Beilishi Road, Xicheng District, Beijing, 100037, China
| | - Yu-Jie An
- Department of Anesthesiology, The Friendship Hospital of Ili Kazakh Autonomous Prefecture, Yining, 835000, Xinjiang Uygur Autonomous Region, China
- Department of Anesthesiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College and Chinese Academy of Medical Sciences, No. 167, Beilishi Road, Xicheng District, Beijing, 100037, China
| | - Xin Yuan
- Department of Anesthesiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College and Chinese Academy of Medical Sciences, No. 167, Beilishi Road, Xicheng District, Beijing, 100037, China
| | - Yun-Tai Yao
- Department of Anesthesiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College and Chinese Academy of Medical Sciences, No. 167, Beilishi Road, Xicheng District, Beijing, 100037, China.
| |
Collapse
|
2
|
Krasivskyi I, Djordjevic I, Ivanov B, Eghbalzadeh K, Großmann C, Reichert S, Radwan M, Sandoval Boburg R, Sabashnikov A, Schlensak C, Wahlers T, Rustenbach CJ. Consequences of Obesity on Short-Term Outcomes in Patients Who Underwent Off-Pump Coronary Artery Bypass Grafting Surgery. J Clin Med 2023; 12:jcm12051929. [PMID: 36902716 PMCID: PMC10003424 DOI: 10.3390/jcm12051929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 02/22/2023] [Accepted: 02/27/2023] [Indexed: 03/05/2023] Open
Abstract
The correlation between off-pump coronary artery bypass (OPCAB) surgery and obesity-related outcomes is still uncertain. The aim of our study was to analyse the pre-, intra-, and postoperative short-term outcomes between obese and non-obese patients after off-pump bypass surgery. We performed a retrospective analysis from January 2017 until November 2022, including a total of 332 (non-obese (n = 193) and obese (n = 139)) patients who underwent an OPCAB procedure due to coronary artery disease (CAD). The primary outcome was all-cause in-hospital mortality. Our results showed no difference regarding mean age of the study population between both groups. The use of the T-graft technique was significantly higher (p = 0.045) in the non-obese group compared to the obese group. The dialysis rate was significantly lower in non-obese patients (p = 0.019). In contrast, the wound infection rate was significantly higher (p = 0.014) in the non-obese group compared to the obese group. The all-cause in-hospital mortality rate did not differ significantly (p = 0.651) between the two groups. Furthermore, ST-elevation myocardial infarction (STEMI) and reoperation were relevant predictors for in-hospital mortality. Therefore, OPCAB surgery remains a safe procedure even in obese patients.
Collapse
Affiliation(s)
- Ihor Krasivskyi
- Department of Cardiothoracic Surgery, University Hospital Cologne, 50937 Cologne, Germany
- Correspondence: ; Tel.: +49-176-353-88-719
| | - Ilija Djordjevic
- Department of Cardiothoracic Surgery, University Hospital Cologne, 50937 Cologne, Germany
| | - Borko Ivanov
- Department of Cardiothoracic Surgery, Helios Hospital Siegburg, 53721 Siegburg, Germany
| | - Kaveh Eghbalzadeh
- Department of Cardiothoracic Surgery, University Hospital Cologne, 50937 Cologne, Germany
| | - Clara Großmann
- Department of Cardiothoracic Surgery, University Hospital Cologne, 50937 Cologne, Germany
| | - Stefan Reichert
- Department of Cardiothoracic Surgery, University Hospital Tuebingen, 72076 Tuebingen, Germany
| | - Medhat Radwan
- Department of Cardiothoracic Surgery, University Hospital Tuebingen, 72076 Tuebingen, Germany
| | - Rodrigo Sandoval Boburg
- Department of Cardiothoracic Surgery, University Hospital Tuebingen, 72076 Tuebingen, Germany
| | - Anton Sabashnikov
- Department of Cardiothoracic Surgery, University Hospital Cologne, 50937 Cologne, Germany
| | - Christian Schlensak
- Department of Cardiothoracic Surgery, University Hospital Tuebingen, 72076 Tuebingen, Germany
| | - Thorsten Wahlers
- Department of Cardiothoracic Surgery, University Hospital Cologne, 50937 Cologne, Germany
| | | |
Collapse
|
3
|
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.
Collapse
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.
| |
Collapse
|
4
|
Filardo G, Pollock BD, Edgerton J. Categorizing body mass index biases assessment of the association with post-coronary artery bypass graft mortality. Eur J Cardiothorac Surg 2018; 52:924-929. [PMID: 28498926 DOI: 10.1093/ejcts/ezx138] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 03/06/2017] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES The high prevalence of obesity makes accurately estimating the impact of anthropometric measures on cardiac surgery outcomes critical. The Society of Thoracic Surgeons coronary artery bypass graft (CABG) surgery risk model includes body surface area (as a continuous variable, using spline functions), but most studies apply various categorizations of body mass index (BMI)-contributing to the contradictory published findings. We assessed the association between BMI (modelled as a continuous variable without assumptions of linearity) and CABG operative mortality and examined the impact of applying previous studies' BMI modelling strategies. METHODS We identified 25 studies investigating the BMI-operative mortality association: 22 categorized BMI, 2 as a linear continuous variable,1 used spline functions. Our cohort of 12 715 consecutive patients underwent isolated CABG at 32 cardiac surgery programmes in North Texas from 1 January 2008-31 December 2012. BMI was modelled using restricted cubic spline functions in a propensity-adjusted model (controlling for Society of Thoracic Surgeons risk factors) estimating operative mortality. The analysis was repeated using each categorization identified and modelling BMI as a linear continuous variable. RESULTS BMI (modelled with a restricted cubic spline) was significantly associated with operative mortality (P < 0.0001). Risk was lowest for BMI near 30 kg/m2 and highest below 20 kg/m2 and above 40 kg/m2. No categorization, nor the linear continuous model, fully captured this association. CONCLUSIONS BMI is strongly associated with CABG operative mortality. Categorizing BMI (or assuming a linear relationship) heavily biases estimates of its association with post-CABG mortality. In general, smoothing techniques should be used for all continuous risk factors to avoid bias.
Collapse
Affiliation(s)
- Giovanni Filardo
- Department of Epidemiology, Office of the Chief Quality Officer, Baylor Scott & White Health, Dallas, TX, USA.,Department of Statistical Science, Southern Methodist University, Dallas, TX, USA
| | - Benjamin D Pollock
- Department of Epidemiology, Office of the Chief Quality Officer, Baylor Scott & White Health, Dallas, TX, USA
| | - James Edgerton
- Department of Cardiothoracic Surgery, The Heart Hospital Baylor Plano, Plano, TX, USA.,Texas Quality Initiative, Irving, TX, USA
| |
Collapse
|
5
|
Sabzi F, Faraji R. Effect of Body Mass Index on Postoperative Complications in Beating Coronary Artery Surgery. Ethiop J Health Sci 2018; 26:509-516. [PMID: 28450765 PMCID: PMC5389069 DOI: 10.4314/ejhs.v26i6.2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Body Mass Index (BMI) is considered as an important risk factor in cardiovascular surgery. We designed a historical cohort study for the evaluation of perioperative complications related to BMI in patients who underwent off-pump coronary artery bypass grafting (OPCAB). METHODS We studied 1120 consecutive patients who underwent OPCAB between January 2008 and December 2011 in Imam Ali Hospital, Kermanshah, Iran. Patients were divided into four groups according to BMI: underweight/low BMI (< 18.5 kg/m2), healthy weight (between 18.5 kg/m2 and 24.9 kg/m2), overweight/high BMI (between 25 kg/m2 and 30 kg/m2), and obese/very high BMI (> 30 kg/m2). RESULTS In multivariable regression analysis, an important correlation between the underweight/low BMI group and mortality was observed (p=0.037). Postoperative stroke, postoperative atrial fibrillation (AF) and intra-aortic balloon pump (IABP) use were not associated with BMI. In linear regression analysis, significant correlations between low BMI, reintubation, ICU stay time and intubation time were found. Re-exploration for bleeding was significantly correlated with having a low or high BMI. CONCLUSION Having a low BMI (which is association with malnutrition and respiratory muscles weakness) was significantly associated with reintubation, prolonged intubation time and ICU stay time. The obese group was also associated with postoperative atelectasia and fever.
Collapse
Affiliation(s)
- Feridoun Sabzi
- Preventive Cardiovascular Research Centre Kermanshah, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Reza Faraji
- Preventive Cardiovascular Research Centre Kermanshah, Kermanshah University of Medical Sciences, Kermanshah, Iran
| |
Collapse
|
6
|
Takagi H, Umemoto T. Overweight, but not obesity, paradox on mortality following coronary artery bypass grafting. J Cardiol 2016; 68:215-21. [DOI: 10.1016/j.jjcc.2015.09.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Revised: 08/27/2015] [Accepted: 09/16/2015] [Indexed: 12/30/2022]
|
7
|
Obesity and coronary artery disease: evaluation and treatment. Can J Cardiol 2014; 31:184-94. [PMID: 25661553 DOI: 10.1016/j.cjca.2014.12.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 12/10/2014] [Accepted: 12/10/2014] [Indexed: 02/06/2023] Open
Abstract
With the increasing prevalence of obesity, clinicians are now facing a growing population of patients with specific features of clinical presentation, diagnostic challenges, and interventional, medical, and surgical management. After briefly discussing the effect of obesity on atherosclerotic burden in this review, we will focus on strategies clinicians might use to ensure better outcomes when performing revascularization in obese and severely obese patients. These patients tend to present comorbidities at a younger age, and their anthropometric features might limit the use of traditional cardiovascular risk stratification approaches for ischemic disease. Alternative techniques have emerged, especially in nuclear medicine. Positron emission tomography-computed tomography might be the diagnostic imaging technique of choice. When revascularization is considered, features associated with obesity must be considered to guide therapeutic strategies. In percutaneous coronary intervention, a radial approach should be favoured, and adequate antiplatelet therapy with new and more potent agents should be initiated. Weight-based anticoagulation should be contemplated if needed, with the use of drug-eluting stents. An "off-pump" approach for coronary artery bypass grafting might be preferable to the use of cardiopulmonary bypass. For patients who undergo bilateral internal thoracic artery grafting, harvesting using skeletonization might prevent deep sternal wound infections. In contrast to percutaneous coronary intervention, lower surgical bleeding has been observed when lean body mass is used for perioperative heparin dose determination.
Collapse
|
8
|
Caliskan E, Güsewell S, Seifert B, Theusinger OM, Starck CT, Pavicevic J, Reser D, Holubec T, Plass A, Falk V, Emmert MY. Does body mass index impact the early outcome of surgical revascularization? A comparison between off-pump and on-pump coronary artery bypass grafting. Interact Cardiovasc Thorac Surg 2014; 19:749-55. [DOI: 10.1093/icvts/ivu246] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
|
9
|
Pullan M, Kirmani BH, Conley T, Oo A, Shaw M, McShane J, Poullis M. Should obese patients undergo on- or off-pump coronary artery bypass grafting? Eur J Cardiothorac Surg 2014; 47:309-15. [DOI: 10.1093/ejcts/ezu108] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|