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White MJ, Zaccaria I, Ennahdi-Elidrissi F, Putzu A, Dimassi S, Luise S, Diaper J, Mulin S, Baudat AD, Gil-Wey B, Elia N, Walder B, Bollen Pinto B. Personalised perioperative dosing of ivabradine in noncardiac surgery: a single-centre, randomised, placebo-controlled, double-blind feasibility pilot trial. Br J Anaesth 2024:S0007-0912(24)00316-7. [PMID: 38960832 DOI: 10.1016/j.bja.2024.05.020] [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: 01/02/2024] [Revised: 05/28/2024] [Accepted: 05/29/2024] [Indexed: 07/05/2024] Open
Abstract
BACKGROUND Perioperative myocardial injury after noncardiac surgery is associated with postoperative mortality. Heart rate (HR) is an independent risk factor for perioperative myocardial injury. In this pilot trial we tested the feasibility of a randomised, placebo-controlled trial of personalised HR-targeted perioperative ivabradine. METHODS This was a single-centre, randomised, placebo-controlled, double-blind, parallel group, feasibility pilot trial conducted at Geneva University Hospitals. We included patients ≥75 yr old or ≥45 yr old with cardiovascular risk factors planned for intermediate- or high-risk surgery. Patients were randomised to receive ivabradine (2.5, 5.0, or 7.5 mg) or placebo according to their HR, twice daily, from the morning of surgery until postoperative day 2. Primary outcomes were appropriate dosage and blinding success rates. RESULTS Between October 2020 and January 2022, we randomised 78 patients (recruitment rate of 1.3 patients week-1). Some 439 of 444 study drug administrations were adequate (99% appropriate dosage rate). The blinding success rate was 100%. There were 137 (31%) administrations of Pill A (placebo in both groups for HR ≤70 beats min-1). Nine (11.5%) patients had a high-sensitive cardiac troponin T elevation ≥14 ng L-1 between any two measurements. The number of bradycardia episodes was eight in the placebo group and nine in the ivabradine group. CONCLUSIONS This pilot study demonstrates the feasibility of, and provides guidance for, a future trial testing the efficacy of personalised perioperative ivabradine. Future studies should include patients at higher risk of cardiac complications. CLINICAL TRIAL REGISTRATION NCT04436016.
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Affiliation(s)
- Marion J White
- Division of Anaesthesiology, Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Isabelle Zaccaria
- Division of Anaesthesiology, Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Florence Ennahdi-Elidrissi
- Division of Anaesthesiology, Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Alessandro Putzu
- Division of Anaesthesiology, Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Saoussen Dimassi
- Division of Anaesthesiology, Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Stéphane Luise
- Division of Anaesthesiology, Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - John Diaper
- Division of Anaesthesiology, Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Stéphanie Mulin
- Division of Anaesthesiology, Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Aurélie D Baudat
- Division of Anaesthesiology, Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Béatrice Gil-Wey
- Division of Anaesthesiology, Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Nadia Elia
- Division of Anaesthesiology, Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, Geneva, Switzerland; Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Bernhard Walder
- Division of Anaesthesiology, Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, Geneva, Switzerland; Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Bernardo Bollen Pinto
- Division of Anaesthesiology, Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, Geneva, Switzerland; Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland.
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Kistler PM, Sanders P, Amarena JV, Bain CR, Chia KM, Choo WK, Eslick AT, Hall T, Hopper IK, Kotschet E, Lim HS, Ling LH, Mahajan R, Marasco SF, McGuire MA, McLellan AJ, Pathak RK, Phillips KP, Prabhu S, Stiles MK, Sy RW, Thomas SP, Toy T, Watts TW, Weerasooriya R, Wilsmore BR, Wilson L, Kalman JM. 2023 Cardiac Society of Australia and New Zealand Expert Position Statement on Catheter and Surgical Ablation for Atrial Fibrillation. Heart Lung Circ 2024; 33:828-881. [PMID: 38702234 DOI: 10.1016/j.hlc.2023.12.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 12/14/2023] [Indexed: 05/06/2024]
Abstract
Catheter ablation for atrial fibrillation (AF) has increased exponentially in many developed countries, including Australia and New Zealand. This Expert Position Statement on Catheter and Surgical Ablation for Atrial Fibrillation from the Cardiac Society of Australia and New Zealand (CSANZ) recognises healthcare factors, expertise and expenditure relevant to the Australian and New Zealand healthcare environments including considerations of potential implications for First Nations Peoples. The statement is cognisant of international advice but tailored to local conditions and populations, and is intended to be used by electrophysiologists, cardiologists and general physicians across all disciplines caring for patients with AF. They are also intended to provide guidance to healthcare facilities seeking to establish or maintain catheter ablation for AF.
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Affiliation(s)
- Peter M Kistler
- The Alfred Hospital, Melbourne, Vic, Australia; The Baker Heart and Diabetes Research Institute, Melbourne, Vic, Australia; University of Melbourne, Melbourne, Vic, Australia; Monash University, Melbourne, Vic, Australia.
| | - Prash Sanders
- University of Adelaide, Adelaide, SA, Australia; Royal Adelaide Hospital, Adelaide, SA, Australia
| | | | - Chris R Bain
- The Alfred Hospital, Melbourne, Vic, Australia; Monash University, Melbourne, Vic, Australia
| | - Karin M Chia
- Royal North Shore Hospital, Sydney, NSW, Australia
| | - Wai-Kah Choo
- Gold Coast University Hospital, Gold Coast, Qld, Australia; Royal Darwin Hospital, Darwin, NT, Australia
| | - Adam T Eslick
- University of Sydney, Sydney, NSW, Australia; The Canberra Hospital, Canberra, ACT, Australia
| | | | - Ingrid K Hopper
- The Alfred Hospital, Melbourne, Vic, Australia; Monash University, Melbourne, Vic, Australia
| | - Emily Kotschet
- Victorian Heart Hospital, Monash Health, Melbourne, Vic, Australia
| | - Han S Lim
- University of Melbourne, Melbourne, Vic, Australia; Austin Health, Melbourne, Vic, Australia; Northern Health, Melbourne, Vic, Australia
| | - Liang-Han Ling
- The Alfred Hospital, Melbourne, Vic, Australia; The Baker Heart and Diabetes Research Institute, Melbourne, Vic, Australia; University of Melbourne, Melbourne, Vic, Australia
| | - Rajiv Mahajan
- University of Adelaide, Adelaide, SA, Australia; Lyell McEwin Hospital, Adelaide, SA, Australia
| | - Silvana F Marasco
- The Alfred Hospital, Melbourne, Vic, Australia; Monash University, Melbourne, Vic, Australia
| | | | - Alex J McLellan
- University of Melbourne, Melbourne, Vic, Australia; Royal Melbourne Hospital, Melbourne, Vic, Australia; St Vincent's Hospital, Melbourne, Vic, Australia
| | - Rajeev K Pathak
- Australian National University and Canberra Heart Rhythm, Canberra, ACT, Australia
| | - Karen P Phillips
- Brisbane AF Clinic, Greenslopes Private Hospital, Brisbane, Qld, Australia
| | - Sandeep Prabhu
- The Alfred Hospital, Melbourne, Vic, Australia; The Baker Heart and Diabetes Research Institute, Melbourne, Vic, Australia; University of Melbourne, Melbourne, Vic, Australia; Monash University, Melbourne, Vic, Australia
| | - Martin K Stiles
- Waikato Clinical School, University of Auckland, Hamilton, New Zealand
| | - Raymond W Sy
- Royal Prince Alfred Hospital, Sydney, NSW, Australia; Concord Repatriation General Hospital, Sydney, NSW, Australia
| | - Stuart P Thomas
- University of Sydney, Sydney, NSW, Australia; Westmead Hospital, Sydney, NSW, Australia
| | - Tracey Toy
- The Alfred Hospital, Melbourne, Vic, Australia
| | - Troy W Watts
- Royal Melbourne Hospital, Melbourne, Vic, Australia
| | - Rukshen Weerasooriya
- Hollywood Private Hospital, Perth, WA, Australia; University of Western Australia, Perth, WA, Australia
| | | | | | - Jonathan M Kalman
- University of Melbourne, Melbourne, Vic, Australia; Royal Melbourne Hospital, Melbourne, Vic, Australia
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3
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Bollen Pinto B, Ackland GL. Pathophysiological mechanisms underlying increased circulating cardiac troponin in noncardiac surgery: a narrative review. Br J Anaesth 2024; 132:653-666. [PMID: 38262855 DOI: 10.1016/j.bja.2023.12.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 11/23/2023] [Accepted: 12/15/2023] [Indexed: 01/25/2024] Open
Abstract
Assay-specific increases in circulating cardiac troponin are observed in 20-40% of patients after noncardiac surgery, depending on patient age, type of surgery, and comorbidities. Increased cardiac troponin is consistently associated with excess morbidity and mortality after noncardiac surgery. Despite these findings, the underlying mechanisms are unclear. The majority of interventional trials have been designed on the premise that ischaemic cardiac disease drives elevated perioperative cardiac troponin concentrations. We consider data showing that elevated circulating cardiac troponin after surgery could be a nonspecific marker of cardiomyocyte stress. Elevated concentrations of circulating cardiac troponin could reflect coordinated pathological processes underpinning organ injury that are not necessarily caused by ischaemia. Laboratory studies suggest that matching of coronary artery autoregulation and myocardial perfusion-contraction coupling limit the impact of systemic haemodynamic changes in the myocardium, and that type 2 ischaemia might not be the likeliest explanation for cardiac troponin elevation in noncardiac surgery. The perioperative period triggers multiple pathological mechanisms that might cause cardiac troponin to cross the sarcolemma. A two-hit model involving two or more triggers including systemic inflammation, haemodynamic strain, adrenergic stress, and autonomic dysfunction might exacerbate or initiate acute myocardial injury directly in the absence of cell death. Consideration of these diverse mechanisms is pivotal for the design and interpretation of interventional perioperative trials.
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Affiliation(s)
- Bernardo Bollen Pinto
- Division of Anaesthesiology, Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, Geneva, Switzerland.
| | - Gareth L Ackland
- Translational Medicine and Therapeutics, William Harvey Research Institute, Queen Mary University of London, London, UK
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4
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Syversen A, Dosis A, Jayne D, Zhang Z. Wearable Sensors as a Preoperative Assessment Tool: A Review. SENSORS (BASEL, SWITZERLAND) 2024; 24:482. [PMID: 38257579 PMCID: PMC10820534 DOI: 10.3390/s24020482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/06/2024] [Accepted: 01/09/2024] [Indexed: 01/24/2024]
Abstract
Surgery is a common first-line treatment for many types of disease, including cancer. Mortality rates after general elective surgery have seen significant decreases whilst postoperative complications remain a frequent occurrence. Preoperative assessment tools are used to support patient risk stratification but do not always provide a precise and accessible assessment. Wearable sensors (WS) provide an accessible alternative that offers continuous monitoring in a non-clinical setting. They have shown consistent uptake across the perioperative period but there has been no review of WS as a preoperative assessment tool. This paper reviews the developments in WS research that have application to the preoperative period. Accelerometers were consistently employed as sensors in research and were frequently combined with photoplethysmography or electrocardiography sensors. Pre-processing methods were discussed and missing data was a common theme; this was dealt with in several ways, commonly by employing an extraction threshold or using imputation techniques. Research rarely processed raw data; commercial devices that employ internal proprietary algorithms with pre-calculated heart rate and step count were most commonly employed limiting further feature extraction. A range of machine learning models were used to predict outcomes including support vector machines, random forests and regression models. No individual model clearly outperformed others. Deep learning proved successful for predicting exercise testing outcomes but only within large sample-size studies. This review outlines the challenges of WS and provides recommendations for future research to develop WS as a viable preoperative assessment tool.
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Affiliation(s)
- Aron Syversen
- School of Computing, University of Leeds, Leeds LS2 9JT, UK
| | - Alexios Dosis
- School of Medicine, University of Leeds, Leeds LS2 9JT, UK; (A.D.); (D.J.)
| | - David Jayne
- School of Medicine, University of Leeds, Leeds LS2 9JT, UK; (A.D.); (D.J.)
| | - Zhiqiang Zhang
- School of Electrical Engineering, University of Leeds, Leeds LS2 9JT, UK;
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Knight K, Wijeysundera DN, Abbott TEF. Self-reported fitness as a measure of perioperative cardiovascular risk: tension between subjective and objective assessments persists. Br J Anaesth 2024; 132:10-12. [PMID: 37925269 DOI: 10.1016/j.bja.2023.10.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/10/2023] [Accepted: 10/12/2023] [Indexed: 11/06/2023] Open
Abstract
Despite recent high-quality international studies, the optimal sum and sequence of subjective and objective assessments that build the complex picture of fitness for surgery remains to be defined. Physicians' subjective assessment of patient fitness after a typical unstructured interview has poor prognostic accuracy in predicting the risk of major cardiovascular events after noncardiac surgery. How does self-reported fitness assessed by structured questionnaire compare as an indicator of perioperative cardiovascular risk? Here we discuss the latest evidence in this evolving and fundamental aspect of perioperative care.
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Affiliation(s)
- Katrina Knight
- Academic Unit of Surgery, Glasgow Royal Infirmary, University of Glasgow, Glasgow, UK
| | - Duminda N Wijeysundera
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, ON, Canada; Department of Anesthesia, Unity Health Toronto - St. Michael's Hospital, Toronto, ON, Canada
| | - Tom E F Abbott
- William Harvey Research Institute, Queen Mary University of London, London, UK.
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6
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Bailey DM, Davies RG, Rose GA, Lewis MH, Aldayem AA, Twine CP, Awad W, Jubouri M, Mohammed I, Mestres CA, Chen EP, Coselli JS, Williams IM, Bashir M. Myths and methodologies: Cardiopulmonary exercise testing for surgical risk stratification in patients with an abdominal aortic aneurysm; balancing risk over benefit. Exp Physiol 2023; 108:1118-1131. [PMID: 37232485 PMCID: PMC10988440 DOI: 10.1113/ep090816] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 05/03/2023] [Indexed: 05/27/2023]
Abstract
The extent to which patients with an abdominal aortic aneurysm (AAA) should exercise remains unclear, given theoretical concerns over the perceived risk of blood pressure-induced rupture, which is often catastrophic. This is especially pertinent during cardiopulmonary exercise testing, when patients are required to perform incremental exercise to symptom-limited exhaustion for the determination of cardiorespiratory fitness. This multimodal metric is being used increasingly as a complementary diagnostic tool to inform risk stratification and subsequent management of patients undergoing AAA surgery. In this review, we bring together a multidisciplinary group of physiologists, exercise scientists, anaesthetists, radiologists and surgeons to challenge the enduring 'myth' that AAA patients should be fearful of and avoid rigorous exercise. On the contrary, by appraising fundamental vascular mechanobiological forces associated with exercise, in conjunction with 'methodological' recommendations for risk mitigation specific to this patient population, we highlight that the benefits conferred by cardiopulmonary exercise testing and exercise training across the continuum of intensity far outweigh the short-term risks posed by potential AAA rupture.
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Affiliation(s)
- Damian M. Bailey
- Neurovascular Research Laboratory, Faculty of Life Sciences and EducationUniversity of South WalesGlamorganUK
| | - Richard G. Davies
- Neurovascular Research Laboratory, Faculty of Life Sciences and EducationUniversity of South WalesGlamorganUK
- Department of AnaestheticsUniversity Hospital of WalesCardiffUK
| | - George A. Rose
- Neurovascular Research Laboratory, Faculty of Life Sciences and EducationUniversity of South WalesGlamorganUK
| | - Michael H. Lewis
- Neurovascular Research Laboratory, Faculty of Life Sciences and EducationUniversity of South WalesGlamorganUK
| | | | | | - Wael Awad
- Neurovascular Research Laboratory, Faculty of Life Sciences and EducationUniversity of South WalesGlamorganUK
- Department of Cardiothoracic SurgeryBart's Heart Centre, St Bartholomew's Hospital, Bart's Health NHS TrustLondonUK
| | | | - Idhrees Mohammed
- Institute of Cardiac and Aortic DisordersSRM Institutes for Medical Science (SIMS Hospital)ChennaiTamil NaduIndia
| | - Carlos A. Mestres
- Department of Cardiac SurgeryUniversity Hospital ZürichZürichSwitzerland
| | - Edward P. Chen
- Division of Cardiovascular and Thoracic SurgeryDuke University Medical CenterDurhamNorth CarolinaUSA
| | - Joseph S. Coselli
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of SurgeryBaylor College of MedicineHoustonTexasUSA
- The Texas Heart InstituteHoustonTexasUSA
- St Luke's‐Baylor St. Luke's Medical CenterHoustonTexasUSA
| | - Ian M. Williams
- Neurovascular Research Laboratory, Faculty of Life Sciences and EducationUniversity of South WalesGlamorganUK
- Department of Vascular SurgeryUniversity Hospital of WalesCardiffUK
| | - Mohamad Bashir
- Neurovascular Research Laboratory, Faculty of Life Sciences and EducationUniversity of South WalesGlamorganUK
- Vascular and Endovascular SurgeryHealth & Education Improvement WalesCardiffUK
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7
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Gao L, Gaba A, Li P, Saxena R, Scheer FAJL, Akeju O, Rutter MK, Hu K. Heart rate response and recovery during exercise predict future delirium risk-A prospective cohort study in middle- to older-aged adults. JOURNAL OF SPORT AND HEALTH SCIENCE 2023; 12:312-323. [PMID: 34915199 DOI: 10.1016/j.jshs.2021.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 11/10/2021] [Accepted: 11/17/2021] [Indexed: 05/17/2023]
Abstract
BACKGROUND Delirium is a neurocognitive disorder characterized by an abrupt decline in attention, awareness, and cognition after surgical/illness-induced stressors on the brain. There is now an increasing focus on how cardiovascular health interacts with neurocognitive disorders given their overlapping risk factors and links to subsequent dementia and mortality. One common indicator for cardiovascular health is the heart rate response/recovery (HRR) to exercise, but how this relates to future delirium is unknown. METHODS Electrocardiogram data were examined in 38,740 middle- to older-aged UK Biobank participants (mean age = 58.1 years, range: 40-72 years; 47.3% males) who completed a standardized submaximal exercise stress test (15-s baseline, 6-min exercise, and 1-min recovery) and required hospitalization during follow-up. An HRR index was derived as the product of the heart rate (HR) responses during exercise (peak/resting HRs) and recovery (peak/recovery HRs) and categorized into low/average/high groups as the bottom quartile/middle 2 quartiles/top quartile, respectively. Associations between 3 HRR groups and new-onset delirium were investigated using Cox proportional hazards models and a 2-year landmark analysis to minimize reverse causation. Sociodemographic factors, lifestyle factors/physical activity, cardiovascular risk, comorbidities, cognition, and maximal workload achieved were included as covariates. RESULTS During a median follow-up period of 11 years, 348 participants (9/1000) newly developed delirium. Compared with the high HRR group (16/1000), the risk for delirium was almost doubled in those with low HRR (hazard ratio = 1.90, 95% confidence interval (95%CI): 1.30-2.79, p = 0.001) and average HRR (hazard ratio = 1.54, 95%CI: 1.07-2.22, p = 0.020)). Low HRR was equivalent to being 6 years older, a current smoker, or ≥3 additional cardiovascular disease risks. Results were robust in sensitivity analysis, but the risk appeared larger in those with better cognition and when only postoperative delirium was considered (n = 147; hazard ratio = 2.66, 95%CI: 1.46-4.85, p = 0.001). CONCLUSION HRR during submaximal exercise is associated with future risk for delirium. Given that HRR is potentially modifiable, it may prove useful for neurological risk stratification alongside traditional cardiovascular risk factors.
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Affiliation(s)
- Lei Gao
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA; Medical Biodynamics Program, Brigham and Women's Hospital, Boston, MA 02115, USA; Division of Sleep Medicine, Harvard Medical School, Boston, MA 02115, USA.
| | - Arlen Gaba
- Medical Biodynamics Program, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Peng Li
- Medical Biodynamics Program, Brigham and Women's Hospital, Boston, MA 02115, USA; Division of Sleep Medicine, Harvard Medical School, Boston, MA 02115, USA
| | - Richa Saxena
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA; Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA 02114, USA; Division of Diabetes, Endocrinology and Gastroenterology, School of Medical Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9PL, UK
| | - Frank A J L Scheer
- Division of Sleep Medicine, Harvard Medical School, Boston, MA 02115, USA; Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA
| | - Oluwaseun Akeju
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Martin K Rutter
- Division of Diabetes, Endocrinology and Gastroenterology, School of Medical Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9PL, UK; Diabetes, Endocrinology and Metabolism Centre, Manchester University National Health Service Foundation Trust, Manchester M13 9WL, UK
| | - Kun Hu
- Medical Biodynamics Program, Brigham and Women's Hospital, Boston, MA 02115, USA; Division of Sleep Medicine, Harvard Medical School, Boston, MA 02115, USA; Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA
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8
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Zhang YQ, Liu XG, Ding Q, Berguson M, Morris RJ, Liu H, Goldhammer JE. Perioperative Renin-Angiotensin System Inhibitors Improve Major Outcomes of Heart Failure Patients Undergoing Cardiac Surgery: A Propensity-Adjusted Cohort Study. Ann Surg 2023; 277:e948-e954. [PMID: 35166263 DOI: 10.1097/sla.0000000000005408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE The aim of this study was to study the association of perioperative administration of renin angiotensin system inhibitors (RASi) and clinical outcomes of patients with heart failure (HF) undergoing cardiac surgery. SUMMARY BACKGROUND DATA It is controversial whether the perioperative RASi should be administered in HF patients undergoing cardiac surgery. METHODS A total of 2338 patients with HF and undergoing CABG and/or valve surgeries at multiple hospitals from 2001 to 2015 were identified from STS database. After adjustment using propensity score and instrumental variable, logistic regression was conducted to analyze the influence of preoperative continuation of RASi (PreRASi) on short-term in-hospital outcomes. Independent risk factors of 30-day mortality, major adverse cardiovascular events (MACE), and renal failure were analyzed by use of stepwise logistic regression. The effects of pre- and postoperative use of RASi (PostRASi) on long-term mortality were analyzed using survival analyses. Stepwise Cox regression was conducted to analyze the independent risk factors of 6-year mortality. The relationships of HF status and surgery type with perioperative RASi, as well as PreRASi-PostRASi, were also evaluated by subgroup analyses. RESULTS PreRASi was associated with lower incidences of 30-day mortality [ P < 0.0001, odds ratio (OR): 0.556, 95% confidence interval (CI) 0.405-0.763], stroke ( P =0.035, OR: 0.585, 95% CI: 0.355-0.962), renal failure ( P =0.007, OR: 0.663, 95% CI: 0.493-0.894). Both PreRASi ( P =0.0137) and PostRASi ( P =0.007) reduced 6-year mortality compared with the No-RASi groups. CONCLUSIONS Pre- and postoperative use of RASi was associated with better outcomes for the patients who have HF and undergo CABG and/or valve surgeries. Preoperative continuation and postoperative restoration are warranted in these patients.
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Affiliation(s)
- Yan-Qing Zhang
- Department of Anesthesiology, School of Anesthesiology, The First Hospital, Shanxi Medical University, Taiyuan, China
- Department of Anesthesiology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA
| | - Xiao-Gang Liu
- The Key Laboratory of Biomedical information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Qian Ding
- Department of Anesthesiology, Tangdu Hospital, Air Force Medical University, Xi'an, Shaanxi, China
| | - Mark Berguson
- Department of Anesthesiology, Lankenau Medical Center, Wynnewood, PA
| | - Rohinton J Morris
- Division of Cardiothoracic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA
| | - Hong Liu
- Department of Anesthesiology, University of California Davis Medical Center, Sacramento, CA
| | - Jordan E Goldhammer
- Department of Anesthesiology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA
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9
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Mølgaard J, Rasmussen SS, Eiberg J, Sørensen HBD, Meyhoff CS, Aasvang EK. Continuous wireless pre- and postoperative vital sign monitoring reveal new, severe desaturations after vascular surgery. Acta Anaesthesiol Scand 2023; 67:19-28. [PMID: 36267029 PMCID: PMC10092470 DOI: 10.1111/aas.14158] [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: 06/13/2022] [Revised: 09/20/2022] [Accepted: 10/17/2022] [Indexed: 12/29/2022]
Abstract
OBJECTIVES Postoperative deviating physiologic values (vital signs) may represent postoperative stress or emerging complications. But they can also reflect chronic preoperative values. Distinguishing between the two circumstances may influence the utility of using vital signs in patient monitoring. Thus, we aimed to describe the occurrence of vital sign deviations before and after major vascular surgery, hypothesising that preoperative vital sign deviations were longer in duration postoperatively. METHODS In this prospective observational study, arterial vascular patients were continuously monitored wirelessly - from the day before until 5 days after surgery. Recorded values were: heart rate, respiration rate, peripheral arterial oxygen saturation (SpO2 ) and blood pressure. The outcomes were 1. cumulative duration of SpO2 < 85% / 24 h, and 2. cumulative duration per 24 h of vital sign deviations. RESULTS Forty patients were included with a median monitoring time of 21 h preoperatively and 42 h postoperatively. The median duration of SpO2 < 85% preoperatively was 14.4 min/24 h whereas it was 28.0 min/24 h during day 0 in the ward (p = .09), and 16.8 min/24 h on day 1 in the ward (p = 0.61). Cumulative duration of SpO2 < 80% was significantly longer on day 0 in the ward 2.4 min/24 h (IQR 0.0-4.6) versus 6.7 min/24 h (IQR 1.8-16.2) p = 0.01. CONCLUSION Deviating physiology is common in patients before and after vascular surgery. A longer duration of severe desaturation was found on the first postoperative day in the ward compared to preoperatively, whereas moderate desaturations were reflected in postoperative desaturations. Cumulative duration outside thresholds is, in some cases, exacerbated after surgery.
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Affiliation(s)
- Jesper Mølgaard
- Department of Anaesthesiology, the Centre for Cancer and Organ Diseases, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Søren Straarup Rasmussen
- Biomedical Signal Processing & AI Research Group, Digital Health Section, Department of Health Technology, Technical University of Denmark, Kgs. Lyngby, Denmark
| | - Jonas Eiberg
- Department of Vascular Surgery, the Heartcenter, Rigshospitalet, Copenhagen, Denmark.,Copenhagen Academy for Medical Education and Simulation (CAMES), Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Helge Bjarup Dissing Sørensen
- Biomedical Signal Processing & AI Research Group, Digital Health Section, Department of Health Technology, Technical University of Denmark, Kgs. Lyngby, Denmark
| | - Christian Sylvest Meyhoff
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.,Department of Anaesthesia and Intensive Care, Copenhagen University Hospital - Bispebjerg and Frederiksberg Hospitals, Copenhagen, Denmark
| | - Eske Kvanner Aasvang
- Department of Anaesthesiology, the Centre for Cancer and Organ Diseases, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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Halvorsen S, Mehilli J, Cassese S, Hall TS, Abdelhamid M, Barbato E, De Hert S, de Laval I, Geisler T, Hinterbuchner L, Ibanez B, Lenarczyk R, Mansmann UR, McGreavy P, Mueller C, Muneretto C, Niessner A, Potpara TS, Ristić A, Sade LE, Schirmer H, Schüpke S, Sillesen H, Skulstad H, Torracca L, Tutarel O, Van Der Meer P, Wojakowski W, Zacharowski K. 2022 ESC Guidelines on cardiovascular assessment and management of patients undergoing non-cardiac surgery. Eur Heart J 2022; 43:3826-3924. [PMID: 36017553 DOI: 10.1093/eurheartj/ehac270] [Citation(s) in RCA: 247] [Impact Index Per Article: 123.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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11
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Fowler AJ, Wan YI, Prowle JR, Chew M, Campbell D, Cuthbertson B, Wijeysundera DN, Pearse R, Abbott T. Long-term mortality following complications after elective surgery: a secondary analysis of pooled data from two prospective cohort studies. Br J Anaesth 2022; 129:588-597. [PMID: 35989114 PMCID: PMC9575043 DOI: 10.1016/j.bja.2022.06.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 05/24/2022] [Accepted: 06/04/2022] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Complications after surgery affect survival and quality of life. We aimed to confirm the relationship between postoperative complications and death within 1 yr after surgery. METHODS We conducted a secondary analysis of pooled data from two prospective cohort studies of patients undergoing surgery in five high-income countries between 2012 and 2014. Exposure was any complication within 30 days after surgery. Primary outcome was death within 1 yr after surgery, ascertained by direct follow-up or linkage to national registers. We adjusted for clinically important covariates using a mixed-effect multivariable Cox proportional hazards regression model. We conducted a planned subgroup analysis by type of complication. Data are presented as mean with standard deviation (sd), n (%), and adjusted hazard ratios (aHRs) with 95% confidence intervals (CIs). RESULTS The pooled cohort included 10 132 patients. After excluding 399 (3.9%) patients with missing data or incomplete follow-up, 9733 patients were analysed. The mean age was 59 [sd 16.8] yr, and 5362 (55.1%) were female. Of 9733 patients, 1841 (18.9%) had complications within 30 days after surgery, and 319 (3.3%) died within 1 yr after surgery. Of 1841 patients with complications, 138 (7.5%) died within 1 yr after surgery compared with 181 (2.3%) of 7892 patients without complications (aHR 1.94 [95% CI: 1.53-2.46]). Respiratory failure was associated with the highest risk of death, resulting in six deaths amongst 28 patients (21.4%). CONCLUSIONS Postoperative complications are associated with increased mortality at 1 yr. Further research is needed to identify patients at risk of complications and to reduce mortality.
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Affiliation(s)
- Alexander J Fowler
- Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Yize I Wan
- Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - John R Prowle
- Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Michelle Chew
- Department of Anaesthesia and Intensive Care, Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Douglas Campbell
- Department of Anaesthesia and Perioperative Medicine, Auckland City Hospital, Auckland, New Zealand
| | - Brian Cuthbertson
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, ON, Canada; Department of Critical Care Medicine, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Duminda N Wijeysundera
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, ON, Canada; Department of Anesthesia, St Michael's Hospital, Toronto, ON, Canada
| | - Rupert Pearse
- Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Tom Abbott
- Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK.
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12
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Predicting personalised remifentanil effect site concentration for surgical incision using the nociception level index: A prospective calibration and validation study. Eur J Anaesthesiol 2022; 39:918-927. [PMID: 36125017 DOI: 10.1097/eja.0000000000001751] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Inadequate antinociception can cause haemodynamic instability. The nociception level (NOL) index measures response to noxious stimuli, but its capacity to predict optimal antinociception is unknown. OBJECTIVE To determine if NOL index change to a tetanic stimulus in cardiac and noncardiac surgery patients could predict the required remifentanil concentration for haemodynamic stability at skin incision. DESIGN A prospective two-phase cohort study. SETTING University hospital. PATIENTS Patients undergoing remifentanil-propofol target controlled infusion (TCI) anaesthesia. INTERVENTIONS During the calibration phase, investigators evaluated the tetanic stimulus induced NOL index change under standardised TCI remifentanil-propofol anaesthesia during a no-touch period [bispectral index (BIS) between 40 and 60, NOL index under 15]. If the NOL index change was 20 or greater following tetanic stimulation, investigators repeated the tetanus at higher remifentanil concentrations until the response was blunted. Surgeons incised the skin at this remifentanil concentration. The investigators derived a prediction model and in the validation phase calculated, using the NOL response to a single tetanus, the required incision remifentanil concentration for the start of surgery. MAIN OUTCOME Haemodynamic stability at incision [i.e. maximum heart rate (HR) < 20% increase from baseline, minimum HR (40 bpm) and mean arterial pressure (MAP) ± <20% of baseline]. RESULTS During the calibration phase, no patient had hypertension. Two patients had a HR increase slightly greater than 20% (25.4 and 26.7%) within the first 2 min of surgery, but neither of these two patients had a HR above 76 bpm. Two patients were slightly hypotensive after incision (MAP 64 and 73 mmHg). During the validation phase, neither tachycardia nor hypotension occurred, but MAP increased to 21.5% above baseline for one patient. CONCLUSION During a no-touch period in patients under steady-state general anaesthesia [propofol effect site concentration (Ce) required for BIS between 40 and 60], the NOL index response to a tetanic stimulus under remifentanil antinociception can be used to personalise remifentanil Ce for the start of surgery and ensure stable haemodynamics. TRIAL REGISTRATION ClinicalTrials.gov: NCT03324269.
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13
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Agathokleous E. The hormetic response of heart rate of fish embryos to contaminants - Implications for research and policy. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 815:152911. [PMID: 34999064 DOI: 10.1016/j.scitotenv.2021.152911] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 12/31/2021] [Accepted: 12/31/2021] [Indexed: 06/14/2023]
Abstract
Evidence of contaminant-induced hormesis is rapidly accumulating, while the underlying mechanisms of hormesis are becoming increasingly understood. Recent developments in this research area, and especially the emergence of the nuclear factor-erythroid factor 2-related factor 2 (Nrf2) as the master mechanism, suggest that contaminants can induce cardiac hormetic responses. This paper collates significant evidence of hormetic response of the heart rate of fish embryos to contaminants, in particular antibiotics, microplastics, and herbicides, characterized by a low-dose increase (tachycardia) and a high-dose decrease (bradycardia). The increase often occurs at doses about 100-800 times smaller than the no-observed-adverse-effect-level (NOAEL). There are also indications for even triphasic responses, which include a sub-hormetic decrease of the heart rate by doses over 106 times smaller than the NOAEL. Such sub-NOAEL effects cannot be captured by linear-no-threshold (LNT) and threshold models, raising concerns about environmental health and highlighting the pressing need to consider hormetic responses in the ecological risk assessment. A visionary way forward is proposed, but addressing this research bottleneck would require improved research designs with enhanced ability and statistical power to study diphasic and triphasic responses of heart rate.
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Affiliation(s)
- Evgenios Agathokleous
- School of Applied Meteorology, Nanjing University of Information Science & Technology (NUIST), 219 Ningliu Rd., Nanjing 210044, China.
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14
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Loft FC, Rasmussen SM, Elvekjaer M, Haahr‐Raunkjaer C, Sørensen HBD, Aasvang EK, Meyhoff CS. Continuously monitored vital signs for detection of myocardial injury in high-risk patients - An observational study. Acta Anaesthesiol Scand 2022; 66:674-683. [PMID: 35247272 PMCID: PMC9314636 DOI: 10.1111/aas.14056] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 02/22/2022] [Accepted: 02/25/2022] [Indexed: 12/21/2022]
Abstract
Background Patients are at risk of myocardial injury after major non‐cardiac surgery and during acute illness. Myocardial injury is associated with mortality, but often asymptomatic and currently detected through intermittent cardiac biomarker screening. This delays diagnosis, where vital signs deviations may serve as a proxy for early signs of myocardial injury. This study aimed to assess the association between continuous monitored vital sign deviations and subsequent myocardial injury following major abdominal cancer surgery and during acute exacerbation of chronic obstructive pulmonary disease. Methods Patients undergoing major abdominal cancer surgery or admitted with acute exacerbation of chronic obstructive pulmonary disease had daily troponin measurements. Continuous wireless monitoring of several vital signs was performed for up to 96 h after admission or surgery. The primary exposure was cumulative duration of peripheral oxygen saturation (SpO2) below 85% in the 24 h before the primary outcome of myocardial injury, defined as a new onset ischaemic troponin elevation assessed daily. If no myocardial injury occurred, the primary exposure was based on the first 24 h of measurement. Results A total of 662 patients were continuously monitored and 113 (17%) had a myocardial injury. Cumulative duration of SpO2 < 85% was significantly associated with myocardial injury (mean difference 14.2 min [95% confidence interval −4.7 to 33.1 min]; p = .005). Durations of hypoxaemia (SpO2 < 88% and SpO2 < 80%), tachycardia (HR > 110 bpm and HR > 130 bpm) and tachypnoea (RR > 24 min−1 and RR > 30 min−1) were also significantly associated with myocardial injury (p < .04, for all). Conclusion Duration of severely low SpO2 detected by continuous wireless monitoring is significantly associated with myocardial injury in high‐risk patients admitted to hospital wards. The effect of early detection and interventions should be assessed next.
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Affiliation(s)
- Frederik C. Loft
- Department of Anaesthesia and Intensive Care, Bispebjerg and Frederiksberg Hospital University of Copenhagen Copenhagen Denmark
- Copenhagen Center for Translational Research Copenhagen University Hospital Bispebjerg and Frederiksberg Copenhagen Denmark
| | - Søren M. Rasmussen
- Digital Health Section Department of Health Technology Technical University of Denmark Kongens Lyngby Denmark
| | - Mikkel Elvekjaer
- Department of Anaesthesia and Intensive Care, Bispebjerg and Frederiksberg Hospital University of Copenhagen Copenhagen Denmark
- Copenhagen Center for Translational Research Copenhagen University Hospital Bispebjerg and Frederiksberg Copenhagen Denmark
- Department of Anaesthesiology Centre for Cancer and Organ Diseases Rigshospitalet University of Copenhagen Copenhagen Denmark
| | - Camilla Haahr‐Raunkjaer
- Department of Anaesthesia and Intensive Care, Bispebjerg and Frederiksberg Hospital University of Copenhagen Copenhagen Denmark
- Copenhagen Center for Translational Research Copenhagen University Hospital Bispebjerg and Frederiksberg Copenhagen Denmark
- Department of Anaesthesiology Centre for Cancer and Organ Diseases Rigshospitalet University of Copenhagen Copenhagen Denmark
| | - Helge B. D. Sørensen
- Digital Health Section Department of Health Technology Technical University of Denmark Kongens Lyngby Denmark
| | - Eske K. Aasvang
- Department of Anaesthesiology Centre for Cancer and Organ Diseases Rigshospitalet University of Copenhagen Copenhagen Denmark
- Department of Clinical Medicine University of Copenhagen Copenhagen Denmark
| | - Christian S. Meyhoff
- Department of Anaesthesia and Intensive Care, Bispebjerg and Frederiksberg Hospital University of Copenhagen Copenhagen Denmark
- Copenhagen Center for Translational Research Copenhagen University Hospital Bispebjerg and Frederiksberg Copenhagen Denmark
- Department of Clinical Medicine University of Copenhagen Copenhagen Denmark
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15
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Is invasive blood pressure monitoring harmful? Eur J Anaesthesiol 2022; 39:178-180. [PMID: 34980851 DOI: 10.1097/eja.0000000000001511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Saka E, Canbaz M, Abdullah T, Dinc T, Polat O, Sabanci PA, Akinci IO, Tugrul KM, Ali A. Perioperative myocardial injury after elective neurosurgery: incidence, risk factors, and effects on mortality. Neurosurg Rev 2022; 45:2151-2159. [PMID: 35018524 DOI: 10.1007/s10143-021-01722-y] [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: 05/25/2021] [Revised: 11/20/2021] [Accepted: 12/20/2021] [Indexed: 10/19/2022]
Abstract
Perioperative myocardial injury is an important reason of mortality and morbidity after neurosurgery. It usually is missed due to its asymptomatic character. In the present study, we investigated myocardial injury after noncardiac surgery (MINS) incidence, the risk factor for MINS, and association of MINS with 30-day mortality in neurosurgery patients. Patients with cardiac risk who underwent elective neurosurgery were enrolled to present prospective cohort study. The patients' demographics, comorbidities, medications used, medical history, and type of operation were recorded. The high-sensitivity cardiac troponin (hs-cTn) levels of the patients were measured 12, 24, and 48 h after surgery. The patients were considered MINS-positive if at least one of their postoperative hs-cTn measurement values was ≥ 14 ng/l. All the patients were followed up for 30 days after surgery for evaluation of their outcomes, including total mortality, mortality due to cardiovascular cause, and major cardiac events. A total of 312 patients completed the study and 64 (20.5%) of them was MINS-positive. Long antiplatelet or anticoagulant drug cessation time (OR: 4.9, 95% CI: 2.1-9.4) was found the most prominent risk factor for MINS occurrence. The total mortality rate was 2.4% and 6.2% in patients MINS-negative and MINS-positive, respectively (p = 0.112). The mortality rate due to cardiovascular reasons (0.8% for without MINS, 4.7 for with MINS, and p = 0.026) and incidence of the major cardiac events (4% for without MINS, 10.9 for with MINS, and p = 0.026) were significantly higher in patients with MINS. MINS is a common problem after neurosurgery, and high postoperative hs-cTn level is associated with mortality and morbidity.
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Affiliation(s)
- Esra Saka
- Department of Anesthesiology and Reanimation, Istanbul Medical Faculty, Istanbul University, Turgut Özal cad, Istanbul, Turkey
| | - Mert Canbaz
- Department of Anesthesiology and Reanimation, Istanbul Medical Faculty, Istanbul University, Turgut Özal cad, Istanbul, Turkey
| | - Taner Abdullah
- Department of Anesthesiology and Reanimation, Istanbul Medical Faculty, Istanbul University, Turgut Özal cad, Istanbul, Turkey
| | - Tugce Dinc
- Department of Anesthesiology and Reanimation, Istanbul Medical Faculty, Istanbul University, Turgut Özal cad, Istanbul, Turkey
| | - Ozlem Polat
- Department of Anesthesiology and Reanimation, Istanbul Medical Faculty, Istanbul University, Turgut Özal cad, Istanbul, Turkey
| | - Pulat Akin Sabanci
- Department of Neurosurgery, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Ibrahim Ozkan Akinci
- Department of Anesthesiology and Reanimation, Istanbul Medical Faculty, Istanbul University, Turgut Özal cad, Istanbul, Turkey
| | - Kamil Mehmet Tugrul
- Department of Anesthesiology and Reanimation, Istanbul Medical Faculty, Istanbul University, Turgut Özal cad, Istanbul, Turkey
| | - Achmet Ali
- Department of Anesthesiology and Reanimation, Istanbul Medical Faculty, Istanbul University, Turgut Özal cad, Istanbul, Turkey. .,İ.Ü. İstanbul Tıp Fakültesi Anesteziyoloji A.D., Turgut Özal cad, İstanbul, Türkiye.
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Ruetzler K, Smilowitz NR, Berger JS, Devereaux PJ, Maron BA, Newby LK, de Jesus Perez V, Sessler DI, Wijeysundera DN. Diagnosis and Management of Patients With Myocardial Injury After Noncardiac Surgery: A Scientific Statement From the American Heart Association. Circulation 2021; 144:e287-e305. [PMID: 34601955 DOI: 10.1161/cir.0000000000001024] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Myocardial injury after noncardiac surgery is defined by elevated postoperative cardiac troponin concentrations that exceed the 99th percentile of the upper reference limit of the assay and are attributable to a presumed ischemic mechanism, with or without concomitant symptoms or signs. Myocardial injury after noncardiac surgery occurs in ≈20% of patients who have major inpatient surgery, and most are asymptomatic. Myocardial injury after noncardiac surgery is independently and strongly associated with both short-term and long-term mortality, even in the absence of clinical symptoms, electrocardiographic changes, or imaging evidence of myocardial ischemia consistent with myocardial infarction. Consequently, surveillance of myocardial injury after noncardiac surgery is warranted in patients at high risk for perioperative cardiovascular complications. This scientific statement provides diagnostic criteria and reviews the epidemiology, pathophysiology, and prognosis of myocardial injury after noncardiac surgery. This scientific statement also presents surveillance strategies and treatment approaches.
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18
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Prevalence and risk factors of myocardial and acute kidney injury following radical nephrectomy with vena cava thrombectomy: a retrospective cohort study. BMC Anesthesiol 2021; 21:243. [PMID: 34641781 PMCID: PMC8513361 DOI: 10.1186/s12871-021-01462-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 09/30/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Radical nephrectomy with thrombectomy is the mainstay treatment for patients with renal cell carcinoma with vena cava thrombus. But the procedure is full of challenge, with high incidence of major complications and mortality. Herein, we investigated the incidence and predictors of myocardial injury and acute kidney injury (AKI) in patients following radical nephrectomy with inferior vena cava thrombectomy. METHODS Patients who underwent nephrectomy with thrombectomy between January 2012 and June 2020 were retrospectively reviewed. Myocardial injury was diagnosed when peak cardiac troponin I was higher than 0.03 ng/ml. AKI was diagnosed according to the Kidney Disease: Improving Global Outcomes (KDIGO) criteria. Multivariable logistic regression models were used to identify predictors of myocardial injury or AKI after surgery. RESULTS A total of 143 patients were included in the final analysis. Myocardial injury and AKI occurred in 37.8 and 42.7% of patients after this surgery, respectively. Male sex (odds ratio [OR] 0.27, 95% confidence interval [CI] 0.10-0.71; P = 0.008) was associated with a lower risk, whereas high level Mayo classification (compared with Mayo level I + II, Mayo level III + IV: OR 4.21, 95% CI 1.42-12.4; P = 0.009), acute normovolemic hemodilution before surgery (OR 2.66, 95% CI 1.10-6.41; P = 0.029), long duration of intraoperative tachycardia (per 20 min: OR 1.49, 95% CI 1.10-2.16; P = 0.036), and long duration of surgery (per 1 h, OR 1.48, 95% CI 1.03-2.16, P = 0.009) were associated with a higher risk of myocardial injury. High body mass index (OR 1.18, 95% CI 1.06-1.33; P = 0.004) and long duration of intraoperative hypotension (per 20 min: OR 1.30, 95% CI 1.04-1.64; P = 0.024) were associated with a higher risk, whereas selective renal artery embolism before surgery (OR 0.20, 95% CI 0.07-0.59, P = 0.004) was associated with a lower risk of AKI. CONCLUSION Myocardial injury and AKI were common in patients recovering from radical nephrectomy with inferior vena cava thrombectomy. Whether interventions targeting the above modifiable factors can improve outcomes require further studies.
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Abbott TEF, Howell S, Pearse RM, Ackland GL. Mode of blood pressure monitoring and morbidity after noncardiac surgery: A prospective multicentre observational cohort study. Eur J Anaesthesiol 2021; 38:468-476. [PMID: 33443380 DOI: 10.1097/eja.0000000000001443] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Control of blood pressure remains a key goal of peri-operative care, because hypotension is associated with adverse outcomes after surgery. OBJECTIVES We explored whether increased vigilance afforded by intra-arterial blood pressure monitoring may be associated with less morbidity after surgery. DESIGN A prospective observational cohort study. SETTING Four UK secondary care hospitals. PATIENTS A total of 4342 patients ≥45 years who underwent noncardiac surgery. METHODS We compared outcome of patients who received peri-operative intra-arterial blood pressure monitoring with those whose blood pressure was measured noninvasively. OUTCOMES The primary outcome was peri-operative myocardial injury (high-sensitivity troponin-T ≥ 15 ng l-1 within 72 h after surgery), compared between patients who received intra-arterial versus noninvasive blood pressure monitoring. Secondary outcomes were morbidity within 72 h of surgery (postoperative morbidity survey), and vasopressor and fluid therapy. Multivariable logistic regression analysis explored associations between morbidity and age, sex, location of postoperative care, mode of blood pressure/haemodynamic monitoring and Revised Cardiac Risk Index. RESULTS Intra-arterial monitoring was used in 1137/4342 (26.2%) patients. Myocardial injury occurred in 440/1137 (38.7%) patients with intra-arterial monitoring compared with 824/3205 (25.7%) with noninvasive monitoring [OR 1.82 (95% CI 1.58 to 2.11), P < 0.001]. Intra-arterial monitoring remained associated with myocardial injury when adjusted for potentially confounding variables [adjusted OR 1.56 (1.29 to 1.89), P < 0.001). The results were similar for planned ICU versus ward postoperative care. CONCLUSIONS Intra-arterial monitoring is associated with greater risk of morbidity after noncardiac surgery, after controlling for surgical and patient factors. These data provide useful insights into the design of a definitive monitoring trial.
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Affiliation(s)
- Tom E F Abbott
- From the Translational Medicine & Therapeutics, William Harvey Research Institute, Queen Mary University of London, EC1 M 6BQ (Abbott, Pearse, Ackland), and Leeds Institute of Medical Research at St James's, University of Leeds, Leeds, UK (Howell)
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20
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Crossland C. Intraoperative hypotension and perioperative outcomes. Br J Hosp Med (Lond) 2020; 81:1-2. [PMID: 33377835 DOI: 10.12968/hmed.2020.0251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Intraoperative hypotension is associated with adverse outcomes. Although a causal relationship is yet to be fully established, proactive management of vulnerable patients and use of bispectral index monitoring is recommended to avoid deep anaesthesia.
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Affiliation(s)
- Charlotte Crossland
- Department of Anaesthesia, Brighton and Sussex University Hospitals Trust, Brighton, UK
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21
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Smit M, Coetzee A, Lochner A. The Pathophysiology of Myocardial Ischemia and Perioperative Myocardial Infarction. J Cardiothorac Vasc Anesth 2020; 34:2501-2512. [DOI: 10.1053/j.jvca.2019.10.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 09/10/2019] [Accepted: 10/02/2019] [Indexed: 12/28/2022]
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Licker M, Diaper J, Ellenberger C. Accountability, research transparency and data reporting. BMC Anesthesiol 2020; 20:199. [PMID: 32795264 PMCID: PMC7427052 DOI: 10.1186/s12871-020-01107-6] [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: 06/29/2020] [Accepted: 07/23/2020] [Indexed: 11/24/2022] Open
Abstract
More than one published paper are often derived from analyzing the same cohort of individuals to make full use of the collected information. Preplanned study outcomes are generally mentioned in open databases while exhaustive information on methodological aspects are provided in submitted articles.
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Affiliation(s)
- Marc Licker
- Department of Anesthesiology, Pharmacology and Intensive Care, University Hospital of Geneva, CH-1211, Geneva, Switzerland. .,Faculty of Medicine, University of Geneva, CH-1211, Geneva, Switzerland.
| | - John Diaper
- Department of Anesthesiology, Pharmacology and Intensive Care, University Hospital of Geneva, CH-1211, Geneva, Switzerland
| | - Christoph Ellenberger
- Department of Anesthesiology, Pharmacology and Intensive Care, University Hospital of Geneva, CH-1211, Geneva, Switzerland
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Cao D, Chandiramani R, Capodanno D, Berger JS, Levin MA, Hawn MT, Angiolillo DJ, Mehran R. Non-cardiac surgery in patients with coronary artery disease: risk evaluation and periprocedural management. Nat Rev Cardiol 2020; 18:37-57. [PMID: 32759962 DOI: 10.1038/s41569-020-0410-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/18/2020] [Indexed: 12/18/2022]
Abstract
Perioperative cardiovascular complications are important causes of morbidity and mortality associated with non-cardiac surgery, particularly in patients with coronary artery disease (CAD). Although preoperative cardiac risk assessment can facilitate the identification of vulnerable patients and implementation of adequate preventive measures, excessive evaluation might lead to undue resource utilization and surgical delay. Owing to conflicting data, there remains some uncertainty regarding the most beneficial perioperative strategy for patients with CAD. Antithrombotic agents are the cornerstone of secondary prevention of ischaemic events but substantially increase the risk of bleeding. Given that 5-25% of patients undergoing coronary stent implantation require non-cardiac surgery within 2 years, surgery is the most common reason for premature cessation of dual antiplatelet therapy. Perioperative management of antiplatelet therapy, which necessitates concomitant evaluation of the individual thrombotic and bleeding risks related to both clinical and procedural factors, poses a recurring dilemma in clinical practice. Current guidelines do not provide detailed recommendations on this topic, and the optimal approach in these patients is yet to be determined. This Review summarizes the current data guiding preoperative risk stratification as well as periprocedural management of patients with CAD undergoing non-cardiac surgery, including those treated with stents.
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Affiliation(s)
- Davide Cao
- The Zena and Michael A. Weiner Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Rishi Chandiramani
- The Zena and Michael A. Weiner Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Davide Capodanno
- Division of Cardiology, C.A.S.T., P.O. "G. Rodolico", Azienda Ospedaliero-Universitaria "Policlinico-Vittorio Emanuele", University of Catania, Catania, Italy
| | - Jeffrey S Berger
- Center for the Prevention of Cardiovascular Disease, New York University Langone Health, New York, NY, USA
| | - Matthew A Levin
- Department of Anesthesiology, Perioperative and Pain Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Mary T Hawn
- Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Dominick J Angiolillo
- Division of Cardiology, University of Florida College of Medicine, Jacksonville, FL, USA
| | - Roxana Mehran
- The Zena and Michael A. Weiner Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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Abstract
Better ways to manage preoperative, intraoperative and postoperative care of surgical patients is the bailiwick of anesthesiologists. Although we care for patients of all ages, protecting the cognitive capacity of elderly patients more frequently requires procedures and practices that go beyond routine care for nonelderly adults. This narrative review will consider current understanding of the reasons that elderly patients need enhanced care, and recommendations for that care based on established and recent empirical research. In that latter regard, unless and until we are able to classify anesthetic neurotoxicity as a rare complication, the first-do-no-harm approach should: (1) add anesthesia to surgical intervention on the physiological cost side of the cost/benefit ratio when making decisions about whether and when to proceed with surgery; (2) minimize anesthetic depth and periods of electroencephalographic suppression; (3) limit the duration of continuous anesthesia whenever possible; (4) consider the possibility that regional anesthesia with deep sedation may be as neurotoxic as general anesthesia; and (5) when feasible, use regional anesthesia with light or no sedation.
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Otto JM, Levett DZH, Grocott MPW. Cardiopulmonary Exercise Testing for Preoperative Evaluation: What Does the Future Hold? CURRENT ANESTHESIOLOGY REPORTS 2020. [DOI: 10.1007/s40140-020-00373-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Abstract
Purpose of Review
Cardiopulmonary exercise testing (CPET) informs the preoperative evaluation process by providing individualised risk profiles; guiding shared decision-making, comorbidity optimisation and preoperative exercise training; and informing perioperative patient management. This review summarises evidence on the role of CPET in preoperative evaluation and explores the role of novel and emerging CPET variables and alternative testing protocols that may improve the precision of preoperative evaluation in the future.
Recent Findings
CPET provides a wealth of physiological data, and to date, much of this is underutilised clinically. For example, impaired chronotropic responses during and after CPET are simple to measure and in recent studies are predictive of both cardiac and noncardiac morbidity following surgery but are rarely reported. Exercise interventions are increasingly being used preoperatively, and endurance time derived from a high intensity constant work rate test should be considered as the most sensitive method of evaluating the response to training. Further research is required to identify the clinically meaningful difference in endurance time. Measuring efficiency may have utility, but this requires exploration in prospective studies.
Summary
Further work is needed to define contemporaneous risk thresholds, to explore the role of other CPET variables in risk prediction, to better characterise CPET’s role in combination with other tools in multifactorial risk stratification and increasingly to evaluate CPET’s utility for preoperative exercise prescription in prehabilitation.
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Prognostic effect of troponin elevation in patients undergoing carotid endarterectomy with regional anesthesia – A prospective study. Int J Surg 2019; 71:66-71. [DOI: 10.1016/j.ijsu.2019.09.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 09/07/2019] [Accepted: 09/16/2019] [Indexed: 01/21/2023]
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May SM, Reyes A, Martir G, Reynolds J, Paredes LG, Karmali S, Stephens RCM, Brealey D, Ackland GL. Acquired loss of cardiac vagal activity is associated with myocardial injury in patients undergoing noncardiac surgery: prospective observational mechanistic cohort study. Br J Anaesth 2019; 123:758-767. [PMID: 31492527 DOI: 10.1016/j.bja.2019.08.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 07/02/2019] [Accepted: 08/03/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Myocardial injury is more frequent after noncardiac surgery in patients with preoperative cardiac vagal dysfunction, as quantified by delayed heart rate (HR) recovery after cessation of cardiopulmonary exercise testing. We hypothesised that serial and dynamic measures of cardiac vagal activity are also associated with myocardial injury after noncardiac surgery. METHODS Serial autonomic measurements were made before and after surgery in patients undergoing elective noncardiac surgery. Cardiac vagal activity was quantified by HR variability and HR recovery after orthostatic challenge (supine to sitting). Revised cardiac risk index (RCRI) was calculated for each patient. The primary outcome was myocardial injury (high-sensitivity troponin ≥15 ng L-1) within 48 h of surgery, masked to investigators. The exposure of interest was cardiac vagal activity (high-frequency power spectral analysis [HFLn]) and HR recovery 90 s from peak HR after the orthostatic challenge. RESULTS Myocardial injury occurred in 48/189 (25%) patients, in whom 41/48 (85%) RCRI was <2. In patients with myocardial injury, vagal activity (HFLn) declined from 5.15 (95% confidence interval [CI]: 4.58-5.72) before surgery to 4.33 (95% CI: 3.76-4.90; P<0.001) 24 h after surgery. In patients who remained free of myocardial injury, HFLn did not change (4.95 [95% CI: 4.64-5.26] before surgery vs 4.76 [95% CI: 4.44-5.08] after surgery). Before and after surgery, the orthostatic HR recovery was slower in patients with myocardial injury (5 beats min-1 [95% CI: 3-7]), compared with HR recovery in patients who remained free of myocardial injury (10 beats min-1 [95% CI: 7-12]; P=0.02). CONCLUSIONS Serial HR measures indicating loss of cardiac vagal activity are associated with perioperative myocardial injury in lower-risk patients undergoing noncardiac surgery.
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Affiliation(s)
- Shaun M May
- Translational Medicine and Therapeutics, William Harvey Research Institute, Queen Mary University of London, London, UK
| | - Anna Reyes
- University College London NHS Hospitals Trust, London, UK
| | - Gladys Martir
- University College London NHS Hospitals Trust, London, UK
| | - Joseph Reynolds
- Translational Medicine and Therapeutics, William Harvey Research Institute, Queen Mary University of London, London, UK
| | | | - Shamir Karmali
- Translational Medicine and Therapeutics, William Harvey Research Institute, Queen Mary University of London, London, UK
| | | | - David Brealey
- University College London NHS Hospitals Trust, London, UK
| | - Gareth L Ackland
- Translational Medicine and Therapeutics, William Harvey Research Institute, Queen Mary University of London, London, UK.
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Abbott TEF, Pearse RM, Archbold RA, Ahmad T, Niebrzegowska E, Wragg A, Rodseth RN, Devereaux PJ, Ackland GL. A Prospective International Multicentre Cohort Study of Intraoperative Heart Rate and Systolic Blood Pressure and Myocardial Injury After Noncardiac Surgery: Results of the VISION Study. Anesth Analg 2019; 126:1936-1945. [PMID: 29077608 PMCID: PMC5815500 DOI: 10.1213/ane.0000000000002560] [Citation(s) in RCA: 128] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
BACKGROUND The association between intraoperative cardiovascular changes and perioperative myocardial injury has chiefly focused on hypotension during noncardiac surgery. However, the relative influence of blood pressure and heart rate (HR) remains unclear. We investigated both individual and codependent relationships among intraoperative HR, systolic blood pressure (SBP), and myocardial injury after noncardiac surgery (MINS). METHODS Secondary analysis of the Vascular Events in Noncardiac Surgery Cohort Evaluation (VISION) study, a prospective international cohort study of noncardiac surgical patients. Multivariable logistic regression analysis tested for associations between intraoperative HR and/or SBP and MINS, defined by an elevated serum troponin T adjudicated as due to an ischemic etiology, within 30 days after surgery. Predefined thresholds for intraoperative HR and SBP were: maximum HR >100 beats or minimum HR <55 beats per minute (bpm); maximum SBP >160 mm Hg or minimum SBP <100 mm Hg. Secondary outcomes were myocardial infarction and mortality within 30 days after surgery. RESULTS After excluding missing data, 1197 of 15,109 patients (7.9%) sustained MINS, 454 of 16,031 (2.8%) sustained myocardial infarction, and 315 of 16,061 patients (2.0%) died within 30 days after surgery. Maximum intraoperative HR >100 bpm was associated with MINS (odds ratio [OR], 1.27 [1.07-1.50]; P < .01), myocardial infarction (OR, 1.34 [1.05-1.70]; P = .02), and mortality (OR, 2.65 [2.06-3.41]; P < .01). Minimum SBP <100 mm Hg was associated with MINS (OR, 1.21 [1.05-1.39]; P = .01) and mortality (OR, 1.81 [1.39-2.37]; P < .01), but not myocardial infarction (OR, 1.21 [0.98-1.49]; P = .07). Maximum SBP >160 mm Hg was associated with MINS (OR, 1.16 [1.01-1.34]; P = .04) and myocardial infarction (OR, 1.34 [1.09-1.64]; P = .01) but, paradoxically, reduced mortality (OR, 0.76 [0.58-0.99]; P = .04). Minimum HR <55 bpm was associated with reduced MINS (OR, 0.70 [0.59-0.82]; P < .01), myocardial infarction (OR, 0.75 [0.58-0.97]; P = .03), and mortality (OR, 0.58 [0.41-0.81]; P < .01). Minimum SBP <100 mm Hg with maximum HR >100 bpm was more strongly associated with MINS (OR, 1.42 [1.15-1.76]; P < .01) compared with minimum SBP <100 mm Hg alone (OR, 1.20 [1.03-1.40]; P = .02). CONCLUSIONS Intraoperative tachycardia and hypotension are associated with MINS. Further interventional research targeting HR/blood pressure is needed to define the optimum strategy to reduce MINS.
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Affiliation(s)
- Tom E F Abbott
- From the William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | - Rupert M Pearse
- From the William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | | | - Tahania Ahmad
- From the William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | | | | | | | - Philip J Devereaux
- Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Gareth L Ackland
- From the William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
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Abbott TEF, Pearse RM, Beattie WS, Phull M, Beilstein C, Raj A, Grocott MPW, Cuthbertson BH, Wijeysundera D, Ackland GL. Chronotropic incompetence and myocardial injury after noncardiac surgery: planned secondary analysis of a prospective observational international cohort study. Br J Anaesth 2019; 123:17-26. [PMID: 31029407 PMCID: PMC6676775 DOI: 10.1016/j.bja.2019.03.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 02/12/2019] [Accepted: 03/03/2019] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND Physiological measures of heart failure are common in surgical patients, despite the absence of a diagnosis. Heart rate (HR) increases during exercise are frequently blunted in heart failure (termed chronotropic incompetence), which primarily reflects beta-adrenoreceptor dysfunction. We examined whether chronotropic incompetence was associated with myocardial injury after noncardiac surgery. METHODS This was a predefined analysis of an international cohort study where participants aged ≥40 yr underwent symptom-limited cardiopulmonary exercise testing before noncardiac surgery. Chronotropic incompetence was defined as the ratio of increase in HR during exercise to age-predicted maximal increase in HR <0.6. The primary outcome was myocardial injury within 3 days after surgery, defined by high-sensitivity troponin assays >99th centile. Explanatory variables were biomarkers for heart failure (ventilatory efficiency slope [minute ventilation/carbon dioxide production] ≥34; peak oxygen consumption ≤14 ml kg-1 min-1; HR recovery ≤6 beats min-1 decrease 1 min post-exercise; preoperative N-terminal pro-B-type natriuretic peptide [NT pro-BNP] >300 pg ml-1). Myocardial injury was compared in the presence or absence of sympathetic (i.e. chronotropic incompetence) or parasympathetic (i.e. impaired HR recovery after exercise) thresholds indicative of dysfunction. Data are presented as odds ratios (ORs) (95% confidence intervals). RESULTS Chronotropic incompetence occurred in 396/1325 (29.9%) participants; only 16/1325 (1.2%) had a heart failure diagnosis. Myocardial injury was sustained by 162/1325 (12.2%) patients. Raised preoperative NT pro-BNP was more common when chronotropic incompetence was <0.6 (OR: 1.57 [1.11-2.23]; P=0.011). Chronotropic incompetence was not significantly associated with myocardial injury (OR: 1.05 [0.74-1.50]; P=0.78), independent of rate-limiting therapy. HR recovery <12 beats min-1 decrease after exercise was associated with myocardial injury in the presence (OR: 1.62 [1.05-2.51]; P=0.03) or absence (OR: 1.60 [1.06-2.39]; P=0.02) of chronotropic incompetence. CONCLUSIONS Chronotropic incompetence is common in surgical patients. In contrast to parasympathetic dysfunction which was associated with myocardial injury, preoperative chronotropic incompetence (suggestive of sympathetic dysfunction) was not associated with postoperative myocardial injury.
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Affiliation(s)
- Tom E F Abbott
- William Harvey Research Institute, Queen Mary University of London, London, UK
| | - Rupert M Pearse
- William Harvey Research Institute, Queen Mary University of London, London, UK
| | - W Scott Beattie
- Department of Anesthesia, University of Toronto, Toronto, ON, Canada
| | - Mandeep Phull
- Department of Intensive Care Medicine, Queens Hospital, Romford, UK
| | - Christian Beilstein
- Department of Anaesthesiology and Pain Therapy, Bern University Hospital, Bern, Switzerland
| | - Ashok Raj
- Department of Intensive Care Medicine, Croydon University Hospital, Croydon, UK
| | - Michael P W Grocott
- Critical Care Research Group, NIHR Southampton Biomedical Research Centre, University Hospital Southampton, University of Southampton, Southampton, UK
| | - Brian H Cuthbertson
- Department of Anesthesia, University of Toronto, Toronto, ON, Canada; Department of Critical Care Medicine, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Duminda Wijeysundera
- Department of Anesthesia, University of Toronto, Toronto, ON, Canada; Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, ON, Canada
| | - Gareth L Ackland
- William Harvey Research Institute, Queen Mary University of London, London, UK.
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Prospective observational cohort study on grading the severity of postoperative complications in global surgery research. Br J Surg 2019; 106:e73-e80. [PMID: 30620066 DOI: 10.1002/bjs.11025] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 09/10/2018] [Accepted: 09/25/2018] [Indexed: 12/20/2022]
Abstract
BACKGROUND The Clavien-Dindo classification is perhaps the most widely used approach for reporting postoperative complications in clinical trials. This system classifies complication severity by the treatment provided. However, it is unclear whether the Clavien-Dindo system can be used internationally in studies across differing healthcare systems in high- (HICs) and low- and middle-income countries (LMICs). METHODS This was a secondary analysis of the International Surgical Outcomes Study (ISOS), a prospective observational cohort study of elective surgery in adults. Data collection occurred over a 7-day period. Severity of complications was graded using Clavien-Dindo and the simpler ISOS grading (mild, moderate or severe, based on guided investigator judgement). Severity grading was compared using the intraclass correlation coefficient (ICC). Data are presented as frequencies and ICC values (with 95 per cent c.i.). The analysis was stratified by income status of the country, comparing HICs with LMICs. RESULTS A total of 44 814 patients were recruited from 474 hospitals in 27 countries (19 HICs and 8 LMICs). Some 7508 patients (16·8 per cent) experienced at least one postoperative complication, equivalent to 11 664 complications in total. Using the ISOS classification, 5504 of 11 664 complications (47·2 per cent) were graded as mild, 4244 (36·4 per cent) as moderate and 1916 (16·4 per cent) as severe. Using Clavien-Dindo, 6781 of 11 664 complications (58·1 per cent) were graded as I or II, 1740 (14·9 per cent) as III, 2408 (20·6 per cent) as IV and 735 (6·3 per cent) as V. Agreement between classification systems was poor overall (ICC 0·41, 95 per cent c.i. 0·20 to 0·55), and in LMICs (ICC 0·23, 0·05 to 0·38) and HICs (ICC 0·46, 0·25 to 0·59). CONCLUSION Caution is recommended when using a treatment approach to grade complications in global surgery studies, as this may introduce bias unintentionally.
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Zhou X, Wang W, Huang L, Liu B. Preoperative resting heart rate: a novel risk factor for cardiopulmonary complications after lung resection. J Thorac Dis 2019; 11:S356-S358. [PMID: 30997220 DOI: 10.21037/jtd.2018.12.95] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Xiaoshuang Zhou
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Wanyu Wang
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Lili Huang
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Bin Liu
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu 610041, China
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Asakura K. Predictor of cardiopulmonary complication after pulmonary resection. J Thorac Dis 2019; 11:S404-S407. [PMID: 30997232 DOI: 10.21037/jtd.2018.11.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Keisuke Asakura
- Division of Thoracic Surgery, Department of Surgery, Keio University School of Medicine, Tokyo, Japan
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Perioperative Quality Initiative consensus statement on intraoperative blood pressure, risk and outcomes for elective surgery. Br J Anaesth 2019; 122:563-574. [PMID: 30916004 DOI: 10.1016/j.bja.2019.01.013] [Citation(s) in RCA: 314] [Impact Index Per Article: 62.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 12/07/2018] [Accepted: 01/09/2019] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Intraoperative mortality is now rare, but death within 30 days of surgery remains surprisingly common. Perioperative myocardial infarction is associated with a remarkably high mortality. There are strong associations between hypotension and myocardial injury, myocardial infarction, renal injury, and death. Perioperative arterial blood pressure management was thus the basis of a Perioperative Quality Initiative consensus-building conference held in London in July 2017. METHODS The meeting featured a modified Delphi process in which groups addressed various aspects of perioperative arterial pressure. RESULTS Three consensus statements on intraoperative blood pressure were established. 1) Intraoperative mean arterial pressures below 60-70 mm Hg are associated with myocardial injury, acute kidney injury, and death. Injury is a function of hypotension severity and duration. 2) For adult non-cardiac surgical patients, there is insufficient evidence to recommend a general upper limit of arterial pressure at which therapy should be initiated, although pressures above 160 mm Hg have been associated with myocardial injury and infarction. 3) During cardiac surgery, intraoperative systolic arterial pressure above 140 mm Hg is associated with increased 30 day mortality. Injury is a function of arterial pressure severity and duration. CONCLUSIONS There is increasing evidence that even brief durations of systolic arterial pressure <100 mm Hg and mean arterial pressure <60-70 mm Hg are harmful during non-cardiac surgery.
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Intra-operative heart rate and postoperative outcomes - rowing against the tide? Eur J Anaesthesiol 2019; 36:90-92. [PMID: 30624290 DOI: 10.1097/eja.0000000000000909] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abbott TEF, Pearse RM, Cuthbertson BH, Wijeysundera DN, Ackland GL. Cardiac vagal dysfunction and myocardial injury after non-cardiac surgery: a planned secondary analysis of the measurement of Exercise Tolerance before surgery study. Br J Anaesth 2018; 122:188-197. [PMID: 30686304 PMCID: PMC6354047 DOI: 10.1016/j.bja.2018.10.060] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 10/19/2018] [Accepted: 10/20/2018] [Indexed: 12/14/2022] Open
Abstract
Background The aetiology of perioperative myocardial injury is poorly understood and not clearly linked to pre-existing cardiovascular disease. We hypothesised that loss of cardioprotective vagal tone [defined by impaired heart rate recovery ≤12 beats min−1 (HRR ≤12) 1 min after cessation of preoperative cardiopulmonary exercise testing] was associated with perioperative myocardial injury. Methods We conducted a pre-defined, secondary analysis of a multi-centre prospective cohort study of preoperative cardiopulmonary exercise testing. Participants were aged ≥40 yr undergoing non-cardiac surgery. The exposure was impaired HRR (HRR≤12). The primary outcome was postoperative myocardial injury, defined by serum troponin concentration within 72 h after surgery. The analysis accounted for established markers of cardiac risk [Revised Cardiac Risk Index (RCRI), N-terminal pro-brain natriuretic peptide (NT pro-BNP)]. Results A total of 1326 participants were included [mean age (standard deviation), 64 (10) yr], of whom 816 (61.5%) were male. HRR≤12 occurred in 548 patients (41.3%). Myocardial injury was more frequent amongst patients with HRR≤12 [85/548 (15.5%) vs HRR>12: 83/778 (10.7%); odds ratio (OR), 1.50 (1.08–2.08); P=0.016, adjusted for RCRI). HRR declined progressively in patients with increasing numbers of RCRI factors. Patients with ≥3 RCRI factors were more likely to have HRR≤12 [26/36 (72.2%) vs 0 factors: 167/419 (39.9%); OR, 3.92 (1.84–8.34); P<0.001]. NT pro-BNP greater than a standard prognostic threshold (>300 pg ml−1) was more frequent in patients with HRR≤12 [96/529 (18.1%) vs HRR>12 59/745 (7.9%); OR, 2.58 (1.82–3.64); P<0.001]. Conclusions Impaired HRR is associated with an increased risk of perioperative cardiac injury. These data suggest a mechanistic role for cardiac vagal dysfunction in promoting perioperative myocardial injury.
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Affiliation(s)
- T E F Abbott
- William Harvey Research Institute, Queen Mary University of London, London, UK; University College London Hospital, London, UK
| | - R M Pearse
- William Harvey Research Institute, Queen Mary University of London, London, UK; Barts Health NHS Trust, London, UK
| | - B H Cuthbertson
- Department of Critical Care Medicine, Sunnybrook Health Sciences Centre, Toronto, ON, Canada; University of Toronto, Toronto, ON, Canada
| | - D N Wijeysundera
- University of Toronto, Toronto, ON, Canada; Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada; Toronto General Hospital, Toronto, ON, Canada
| | - G L Ackland
- William Harvey Research Institute, Queen Mary University of London, London, UK; Barts Health NHS Trust, London, UK.
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Ladha K, Beattie W, Tait G, Wijeysundera D. Association between preoperative ambulatory heart rate and postoperative myocardial injury: a retrospective cohort study. Br J Anaesth 2018; 121:722-729. [DOI: 10.1016/j.bja.2018.06.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 05/28/2018] [Accepted: 06/17/2018] [Indexed: 11/30/2022] Open
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Pinto BB, Walder B. Heart rate as a predictor and a therapeutic target of cardiac ischemic complications after non-cardiac surgery. A narrative review. TRENDS IN ANAESTHESIA AND CRITICAL CARE 2018. [DOI: 10.1016/j.tacc.2018.06.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Fu D, Wu C, Li X, Chen J. Elevated preoperative heart rate associated with increased risk of cardiopulmonary complications after resection for lung cancer. BMC Anesthesiol 2018; 18:94. [PMID: 30045695 PMCID: PMC6060559 DOI: 10.1186/s12871-018-0558-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 07/12/2018] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND The study aimed to assess whether preoperative resting heart rate could be a risk factor for cardiopulmonary complications (CPCs) after lung cancer resection. METHODS Eligible consecutive patients who underwent resection surgery for non-small cell lung cancer (NSCLC) at Ningbo NO.2 Hospital between May, 2010 and July, 2015 were included. The demographic, clinical characteristics and laboratory parameters were compared in patients with or without CPCs within postoperative 30 days. The multivariate logistic regression analysis was used to analyze the association between CPCs and risk factors. Receiver operating characteristic (ROC) curve analysis was utilized for the predictive role of preoperative resting heart rate for CPCs. RESULTS One hundred eighty participants were enrolled into the final analysis and 42 of them had an established diagnosis of CPCs within postoperative 30 days. Elevated preoperative resting heart rate was an independent risk factor for postoperative CPCs (OR: 4.48, 95% CI: 1.17-18.42, P = 0.021) by the multivariate logistic regression analysis. ROC curve analysis indicated elevated resting heart rate as a predictor for CPCs with a cut-off value of 86 beats/min (AUC: 0.813, specificity: 80.95%, sensitivity: 72.46%, P < 0.001). CONCLUSIONS Elevated preoperative resting heart rate was associated with an increased risk of postoperative CPCs in patients after resection for lung cancer.
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Affiliation(s)
- Danxia Fu
- Department of anesthesiology, Ningbo NO.2 hospital, NO.41 Xibei Street, Ningbo City, 315000 Zhejiang Province China
| | - Chaoshuang Wu
- Department of anesthesiology, Ningbo NO.2 hospital, NO.41 Xibei Street, Ningbo City, 315000 Zhejiang Province China
| | - Xiaoyu Li
- Department of anesthesiology, Ningbo NO.2 hospital, NO.41 Xibei Street, Ningbo City, 315000 Zhejiang Province China
| | - Junping Chen
- Department of anesthesiology, Ningbo NO.2 hospital, NO.41 Xibei Street, Ningbo City, 315000 Zhejiang Province China
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Walker SLM, Abbott TEF, Brown K, Pearse RM, Ackland GL. Perioperative management of angiotensin-converting enzyme inhibitors and/or angiotensin receptor blockers: a survey of perioperative medicine practitioners. PeerJ 2018; 6:e5061. [PMID: 30042876 PMCID: PMC6055831 DOI: 10.7717/peerj.5061] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 06/04/2018] [Indexed: 01/13/2023] Open
Abstract
Background Angiotensin-converting enzyme inhibitors (ACEi) and angiotensin receptor blockers (ARB) are the most commonly prescribed antihypertensive medications in higher-risk surgical patients. However, there is no clinical consensus on their use in the perioperative period, in part, due to an inconsistent evidence-base. To help inform the design of a large multi-centre randomized controlled trial (ISRCTN17251494), we undertook a questionnaire-based survey exploring variability in ACEi/ARB prescribing in perioperative practice. Methods The online survey included perioperative scenarios to examine how consistent respondents were with their stated routine preoperative practice. Clinicians with an academic interest in perioperative medicine were primarily targeted between July and September 2017. STROBE guidelines for observational research and ANZCA Trials Group Survey Reporting recommendations were adhered to. Results 194 responses were received, primarily from clinicians practicing in the UK. A similar minority of respondents continue ACEi (n = 57; 30%) and ARBs (n = 62; 32%) throughout the perioperative period. However, timing of preoperative cessation was highly variable, and rarely influenced by the pharmacokinetics of individual ACE-i/ARBs. Respondents’ stated routine practice was frequently misaligned with their management of common pre- and postoperative scenarios involving continuation or restarting ACE-i/ARBs. Discussion This survey highlights many inconsistencies amongst clinicians’ practice in perioperative ACE-i/ARB management. Studies designed to reveal an enhanced understanding of perioperative mechanisms at play, coupled with randomised controlled trials, are required to rationally inform the clinical management of ACE-i/ARBs in patients most at risk of postoperative morbidity.
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Affiliation(s)
- Sophie L M Walker
- William Harvey Research Institute, QMUL, Queen Mary University of London, London, United Kingdom
| | - Tom E F Abbott
- William Harvey Research Institute, QMUL, Queen Mary University of London, London, United Kingdom
| | - Katherine Brown
- William Harvey Research Institute, QMUL, Queen Mary University of London, London, United Kingdom
| | - Rupert M Pearse
- William Harvey Research Institute, QMUL, Queen Mary University of London, London, United Kingdom
| | - Gareth L Ackland
- William Harvey Research Institute, QMUL, Queen Mary University of London, London, United Kingdom
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Aboo Bakkar Z, Fulford J, Gates PE, Jackman SR, Jones AM, Bond B, Bowtell JL. Prolonged forearm ischemia attenuates endothelium-dependent vasodilatation and plasma nitric oxide metabolites in overweight middle-aged men. Eur J Appl Physiol 2018; 118:1565-1572. [PMID: 29785503 PMCID: PMC6060779 DOI: 10.1007/s00421-018-3886-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Accepted: 05/06/2018] [Indexed: 12/01/2022]
Abstract
Purpose Repeated cycles of endothelial ischemia–reperfusion injury and the resulting respiratory burst contribute to the irreversible pathophysiology of vascular diseases, and yet, the effects of ischemia reperfusion on vascular function, oxidative stress, and nitric oxide (NO) bioavailability have not been assessed simultaneously. Therefore, this study sought to examine the effects of prolonged forearm occlusion and subsequent reperfusion on NO-dependent brachial artery endothelial function. Methods Flow-mediated dilatation was measured at baseline and 15, 30, and 45 min after 20-min forearm occlusion in 14 healthy, but physically inactive middle-aged men (53.7 ± 1.2 years, BMI: 28.1 ± 0.1 kg m−2). Venous blood samples collected from the occluded arm were analyzed for NO metabolites and markers of oxidative stress. Results FMD was significantly depressed after the prolonged occlusion compared to baseline, with a significant reduction 15-min post-occlusion (6.6 ± 0.7 to 2.9 ± 0.4%, p < 0.001); FMD remained depressed after 30 min (4.1 ± 0.6%, p = 0.001), but was not significantly different to baseline after 45-min recovery (5.4 ± 0.7%, p = 0.079). Plasma nitrate (main time effect: p = 0.015) and nitrite (main time effect: p = 0.034) concentrations were significantly reduced after prolonged occlusion. Plasma catalase activity was significantly elevated at 4- (p = 0.016) and 45-min (p = 0.001) post-occlusion, but plasma peroxiredoxin 2 and protein carbonyl content did not change. Conclusions Prolonged forearm occlusion resulted in acute impairment of endothelium-dependent vasodilatation of the brachial artery for at least 30 min after reperfusion. We demonstrate that this vascular dysfunction is associated with oxidative stress and reduced NO bioavailability following reperfusion.
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Affiliation(s)
- Zainie Aboo Bakkar
- Sport and Health Sciences, College of Life and Environmental Sciences, University of Exeter, Exeter, EX1 2LU, UK
| | | | | | - Sarah R Jackman
- Sport and Health Sciences, College of Life and Environmental Sciences, University of Exeter, Exeter, EX1 2LU, UK
| | - Andrew M Jones
- Sport and Health Sciences, College of Life and Environmental Sciences, University of Exeter, Exeter, EX1 2LU, UK
| | - Bert Bond
- Sport and Health Sciences, College of Life and Environmental Sciences, University of Exeter, Exeter, EX1 2LU, UK
| | - Joanna L Bowtell
- Sport and Health Sciences, College of Life and Environmental Sciences, University of Exeter, Exeter, EX1 2LU, UK.
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George R, Menon VP, Edathadathil F, Balachandran S, Moni M, Sathyapalan D, Prasanna P, S G, Paul J, K.K. C, Kumar L, Pillai A. Myocardial injury after noncardiac surgery-incidence and predictors from a prospective observational cohort study at an Indian tertiary care centre. Medicine (Baltimore) 2018; 97:e0402. [PMID: 29742684 PMCID: PMC5959425 DOI: 10.1097/md.0000000000010402] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Asymptomatic myocardial injury following noncardiac surgery (MINS) is an independent predictor of 30-day mortality and may go unrecognized based on standard diagnostic definition for myocardial infarction (MI). Given lack of published research on MINS in India, our study aims to determine incidence of MINS in patients undergoing noncardiac surgery at our tertiary care hospital, and evaluate the clinical characteristics including 30-day outcome.The prospective observational study included patients >65 years or >45 years with either hypertension (HTN), diabetes mellitus (DM), coronary artery disease (CAD), cerebrovascular accident (CVA), or peripheral arterial disease undergoing noncardiac surgery. MINS was peak troponin level of ≥0.03 ng/dL at 12-hour or 24-hour postoperative. All patients were followed for 30 days postoperatively. Predictors of MINS and mortality were analyzed using multivariate logistic regression. Patients categorized based on peak troponin cut-off values determined by receiver operating characteristic curve were analyzed by Kaplan-Meir test to compare the survival of patients between the groups.Among 1075 patients screened during 34-month period, the incidence of MINS was 17.5% (188/1075). Patients with DM, CAD, or who underwent peripheral nerve block anaesthesia were 1.5 (P < .01), 2 (P < .001), and 12 (P < .001) times, respectively, more likely to develop MINS than others. Patients with heart rates ≥96 bpm before induction of anesthesia were significantly associated with MINS (P = .005) and mortality (P = .02). The 30-day mortality in MINS cohort was 11.7% (22/188, 95% CI 7.5%-17.2%) vs 2.5% (23/887, 95% CI 1.7%-3.9%) in patients without MINS (P < .001). ECG changes (P = .002), peak troponin values >1 ng/mL (P = .01) were significantly associated with mortality. A peak troponin cut-off of >0.152 ng/mL predicted mortality among MINS patients at 72% sensitivity and 58% specificity. Lack of antithrombotic therapy following MINS was independent predictor of mortality (P < .001), with decreased mortality in patients who took post-op ASA (Aspirin) or Clopidogrel. Mortality among MINS patients with post-op ASA intake is 6.7% vs 12.1% among MINS patients without post-op ASA intake. Mortality among MINS patients with post-op Clopidogrel intake is 10.5% vs 11.8% among MINS patients without post-op Clopidogrel intake.A higher (17.5%, 95% CI 15-19%) incidence of MINS was observed in our patient cohort with significant association with 30-day mortality. Serial postoperative monitoring of troponin following noncardiac surgery as standard of care, would identify "at risk" patients translating to improved outcomes.
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Affiliation(s)
| | | | | | | | | | | | - Preetha Prasanna
- Department of Medical Administration, Amrita Institute of Medical Sciences
| | - Gokuldas S
- Department of Anaesthesiology and Critical Care Medicine
| | - Jerry Paul
- Anaesthesiology and Critical Care Medicine, Composite Tissue Allotransplantation
| | | | | | - Ashok Pillai
- Department of Neurosurgery, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India—682041
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Yeung J, Gillies MA, Pearse RM. Pragmatic trials in peri-operative medicine: why, when and how? Anaesthesia 2018; 73:803-807. [PMID: 29577235 DOI: 10.1111/anae.14252] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- J Yeung
- Warwick Medical School, University of Warwick, Warwick, UK
| | - M A Gillies
- Department of Anaesthesia, Critical Care and Pain Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - R M Pearse
- Intensive Care, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
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Jørgensen ME, Andersson C, Venkatesan S, Sanders RD. Beta-blockers in noncardiac surgery: Did observational studies put us back on safe ground? Br J Anaesth 2018; 121:16-25. [PMID: 29935568 DOI: 10.1016/j.bja.2018.02.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 01/10/2018] [Accepted: 02/07/2018] [Indexed: 01/10/2023] Open
Abstract
Based on landmark trials, international guidelines had for years promoted the use of beta-blockers in the setting of non-cardiac surgery. In 2011, concerns were raised regarding the integrity of some of the landmark trials, as the Dutch Erasmus Medical Center found some of them to be scientifically incorrect. Based on the remaining studies that were to be trusted, investigations showed that, in contrast to prior beliefs, the widespread use of perioperative beta-blockers might be harmful. A call for further investigations into the matter ushered in several observational studies evaluating the safety of perioperative beta-blocker therapy in specific patient subgroups. Within this review, we discuss important aspects for making these decisions, and compare the major observational studies and specific estimates of risk in subgroups of interest. We conclude that patients at high risk with heavy co-morbidities, such as heart failure, may benefit from beta-blocker therapy, whereas low-risk patients, such as patients with uncomplicated hypertension, may be at increased risk with beta-blocker therapy. We provide a critical review of current perioperative guidelines in view of the new observational data, suggesting that the recommended schematics, such as the Revised Cardiac Risk Index, for risk stratification of patients in this setting may be suboptimal. Further, we provide discussions of other aspects, including risk of sepsis, type of beta-blocker, and the potential of perioperative beta-blocker withdrawal, which may be important in guiding future studies. Summarising the current evidence, we argue that, after a precarious decade, we may just now, be back on safe ground.
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Affiliation(s)
- M E Jørgensen
- The Cardiovascular Research Center, Herlev-Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark.
| | - C Andersson
- The Cardiovascular Research Center, Herlev-Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - S Venkatesan
- Division of Epidemiology and Public Health, University of Nottingham, Nottingham, UK
| | - R D Sanders
- Anesthesiology & Critical Care Trials & Interdisciplinary Outcome Network, Department of Anesthesiology, University of Wisconsin, Madison, WI, USA
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Crowther M, van der Spuy K, Roodt F, Nejthardt MB, Davids JG, Roos J, Cloete E, Pretorius T, Davies GL, van der Walt JG, van der Westhuizen C, Flint M, Swanevelder JLC, Biccard BM. The relationship between pre-operative hypertension and intra-operative haemodynamic changes known to be associated with postoperative morbidity. Anaesthesia 2018. [DOI: 10.1111/anae.14239] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- M. Crowther
- Department of Anaesthesia and Peri-operative Medicine; University of Cape Town; Cape Town South Africa
| | - K. van der Spuy
- Department of Anaesthesia and Peri-operative Medicine; University of Cape Town; Cape Town South Africa
| | - F. Roodt
- Department of Anaesthesia and Peri-operative Medicine; University of Cape Town; Cape Town South Africa
| | - M. B. Nejthardt
- Department of Anaesthesia and Peri-operative Medicine; University of Cape Town; Cape Town South Africa
| | - J. G. Davids
- Department of Anaesthesia; George Provincial Hospital; George South Africa
| | - J. Roos
- Department of Anaesthesia; Mitchell's Plain Hospital; Cape Town South Africa
| | - E. Cloete
- Department of Anaesthesia and Peri-operative Medicine; University of Cape Town; Cape Town South Africa
| | - T. Pretorius
- Department of Anaesthesia; Paarl Provincial Hospital; Paarl South Africa
| | - G. L. Davies
- Department of Anaesthesia; Paarl Provincial Hospital; Paarl South Africa
| | | | | | - M. Flint
- Department of Anaesthesia and Peri-operative Medicine; University of Cape Town; Cape Town South Africa
| | - J. L. C. Swanevelder
- Department of Anaesthesia and Peri-operative Medicine; University of Cape Town; Cape Town South Africa
| | - B. M. Biccard
- Department of Anaesthesia and Peri-operative Medicine; University of Cape Town; Cape Town South Africa
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46
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Duncan D, Wijeysundera DN. Preoperative Cardiac Evaluation of the Patient Undergoing Noncardiac Surgery. CURRENT ANESTHESIOLOGY REPORTS 2018. [DOI: 10.1007/s40140-018-0247-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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47
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Abbott TEF, Ahmad T, Phull MK, Fowler AJ, Hewson R, Biccard BM, Chew MS, Gillies M, Pearse RM. The surgical safety checklist and patient outcomes after surgery: a prospective observational cohort study, systematic review and meta-analysis. Br J Anaesth 2018; 120:146-155. [PMID: 29397122 DOI: 10.1016/j.bja.2017.08.002] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 07/30/2017] [Accepted: 09/18/2017] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND The surgical safety checklist is widely used to improve the quality of perioperative care. However, clinicians continue to debate the clinical effectiveness of this tool. METHODS Prospective analysis of data from the International Surgical Outcomes Study (ISOS), an international observational study of elective in-patient surgery, accompanied by a systematic review and meta-analysis of published literature. The exposure was surgical safety checklist use. The primary outcome was in-hospital mortality and the secondary outcome was postoperative complications. In the ISOS cohort, a multivariable multi-level generalized linear model was used to test associations. To further contextualise these findings, we included the results from the ISOS cohort in a meta-analysis. Results are reported as odds ratios (OR) with 95% confidence intervals. RESULTS We included 44 814 patients from 497 hospitals in 27 countries in the ISOS analysis. There were 40 245 (89.8%) patients exposed to the checklist, whilst 7508 (16.8%) sustained ≥1 postoperative complications and 207 (0.5%) died before hospital discharge. Checklist exposure was associated with reduced mortality [odds ratio (OR) 0.49 (0.32-0.77); P<0.01], but no difference in complication rates [OR 1.02 (0.88-1.19); P=0.75]. In a systematic review, we screened 3732 records and identified 11 eligible studies of 453 292 patients including the ISOS cohort. Checklist exposure was associated with both reduced postoperative mortality [OR 0.75 (0.62-0.92); P<0.01; I2=87%] and reduced complication rates [OR 0.73 (0.61-0.88); P<0.01; I2=89%). CONCLUSIONS Patients exposed to a surgical safety checklist experience better postoperative outcomes, but this could simply reflect wider quality of care in hospitals where checklist use is routine.
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Affiliation(s)
- T E F Abbott
- William Harvey Research Institute, Queen Mary University of London, London EC1M 6BQ, UK
| | - T Ahmad
- William Harvey Research Institute, Queen Mary University of London, London EC1M 6BQ, UK
| | - M K Phull
- The Royal London Hospital, Barts Health NHS Trust, London E1 1BB, UK
| | - A J Fowler
- Guys and St. Thomas's NHS Foundation Trust, London SE1 7EH, UK
| | - R Hewson
- The Royal London Hospital, Barts Health NHS Trust, London E1 1BB, UK
| | - B M Biccard
- Department of Anaesthesia and Perioperative Medicine, Groote Schuur Hospital, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - M S Chew
- Department of Anaesthesia and Intensive Care, Faculty of Medicine and Health Sciences, Linköping University, 58185 Linköping, Sweden
| | - M Gillies
- Department of Anaesthesia, Critical Care and Pain Medicine, University of Edinburgh, Edinburgh EH48 3DF, UK
| | - R M Pearse
- William Harvey Research Institute, Queen Mary University of London, London EC1M 6BQ, UK.
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48
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Nagele P. Postoperative hypotension and troponin elevation: association or causation? Br J Anaesth 2018; 120:4-5. [PMID: 29397136 DOI: 10.1016/j.bja.2017.11.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 11/13/2017] [Indexed: 10/18/2022] Open
Affiliation(s)
- P Nagele
- Department of Anesthesiology, Washington University School of Medicine, St. Louis, MO, USA.
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49
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Kwon HM, Jun IG, Jung KW, Moon YJ, Shin WJ, Song JG, Hwang GS. Pretransplant Resting Heart Rate and Its Association With All-Cause Mortality in Liver Transplant Recipients. Transplant Proc 2018; 49:1092-1096. [PMID: 28583534 DOI: 10.1016/j.transproceed.2017.03.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
BACKGROUND The importance of heart rate (HR) measurement as a prognostic factor has been recognized in many clinical conditions, such as hypertension, coronary artery disease, or heart failure. Patients with liver cirrhosis tend to have increased resting HR as consequence of hyperdynamic circulation. In the current study, we examined whether pretransplant resting increased HR is associated with overall mortality in cirrhotic patients following liver transplantation (LT). PATIENTS AND METHODS We retrospectively collected and analyzed the data of 881 liver recipients who underwent LT surgery between October 2009 and September 2012. Patients were categorized into 3 groups by tertile of resting HR as follows: tertile 1 group, HR ≤ 65 beats per minute (bpm); tertile 2 group, HR 66 to 80 bpm; and tertile 3 group, HR > 80 bpm. RESULTS Kaplan-Meier analysis showed that the all-cause mortality rate was significantly different according to tertiles of HR (P = .016, log-rank test). The multivariate Cox regression analysis showed that tertile 3 group was significantly associated with higher risk for all-cause mortality (hazard ratio 1.83, 95% confidence interval, 1.10-3.07; P = .021) compared with tertile 1 group, after adjusting for clinically significant variables in univariate analysis. CONCLUSIONS Our results demonstrate that pretransplant resting tachycardia can identify patients at high risk of death in cirrhotic patients following LT, suggesting that further study will be need to clarify relationship between HR burden and sympathetic cardiac neuropathy.
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Affiliation(s)
- H-M Kwon
- Department of Anesthesiology and Pain Medicine, Laboratory for Cardiovascular Dynamics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - I-G Jun
- Department of Anesthesiology and Pain Medicine, Laboratory for Cardiovascular Dynamics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
| | - K-W Jung
- Department of Anesthesiology and Pain Medicine, Laboratory for Cardiovascular Dynamics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Y-J Moon
- Department of Anesthesiology and Pain Medicine, Laboratory for Cardiovascular Dynamics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - W-J Shin
- Department of Anesthesiology and Pain Medicine, Laboratory for Cardiovascular Dynamics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - J-G Song
- Department of Anesthesiology and Pain Medicine, Laboratory for Cardiovascular Dynamics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - G-S Hwang
- Department of Anesthesiology and Pain Medicine, Laboratory for Cardiovascular Dynamics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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50
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Regan DW, Kashiwagi D, Dougan B, Sundsted K, Mauck K. Update in perioperative medicine: practice changing evidence published in 2016. Hosp Pract (1995) 2017; 45:158-164. [PMID: 28749248 DOI: 10.1080/21548331.2017.1359060] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 07/20/2017] [Indexed: 06/07/2023]
Abstract
This summary reviews 18 key articles published in 2016 which have significant practice implications for the perioperative medical care of surgical patients. Due to the multi-disciplinary nature of the practice of perioperative medicine, important new evidence is published in journals representing a variety of medical and surgical specialties. Keeping current with the evidence that drives best practice in perioperative medicine is therefore challenging. We set out to identify, critically review, and summarize key evidence which has the most potential for practice change. We integrated the new evidence into the existing body of medical knowledge and identified practical implications for real world patient care. The articles address issues related to anticoagulation, transfusion threshold, immunosuppressive medications, postoperative delirium, myocardial injury after noncardiac surgery, postoperative pain management, perioperative management of antihypertensives, perioperative fasting, and perioperative diabetic control.
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Affiliation(s)
- Dennis W Regan
- a General Internal Medicine , Mayo Clinic , Rochester , MN , USA
| | | | - Brian Dougan
- a General Internal Medicine , Mayo Clinic , Rochester , MN , USA
| | - Karna Sundsted
- a General Internal Medicine , Mayo Clinic , Rochester , MN , USA
| | - Karen Mauck
- a General Internal Medicine , Mayo Clinic , Rochester , MN , USA
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