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Li L, Homer P, Craft M, Kutty S, Putschoegl A, Marshall A, Danford D, Yetman A. Machine Learning-Enabled Fully Automated Assessment of Left Ventricular Volume, Ejection Fraction and Strain: Experience in Pediatric and Young Adult Echocardiography. Pediatr Cardiol 2024; 45:1183-1191. [PMID: 36208311 DOI: 10.1007/s00246-022-03015-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 09/18/2022] [Indexed: 10/10/2022]
Abstract
BACKGROUND Left ventricular (LV) volumes, ejection fraction (EF), and myocardial strain have been shown to be predictive of clinical and subclinical heart disease. Automation of LV functional assessment overcomes difficult technical challenges and complexities. We sought to assess whether a fully automated assessment of LV function could be reliably used in children and young adults. METHODS Fifty normal volunteers (22/28, female/male) were prospectively recruited for research echocardiography. LV volumes, EF, and strain were measured both manually and automatically. An experienced sonographer performed all the manual analysis and recorded the analysis timing. The fully automated analyses were accomplished by 5 groups of observers with different knowledge and medical background. AutoLV and AutoSTRAIN (TomTec) were employed for the fully automated LV analysis. The LV volumes, EF, strain, and analysis time were compared between manual and automated methods, and among the 5 groups of observers. RESULTS Software-determined endocardial border detection was achievable in all subjects. The analysis times of the experienced sonographer were significantly shorter for AutoLV and AutoSTRAIN than manual analyses (both p < 0.001). Strong correlations were seen between conventional EF and AutoLV (r = 0.8373), and between conventional three view global longitudinal strain (GLS) and AutoSTRAIN (r = 0.9766). The volumes from AutoLV and three view GLS from AutoSTRAIN had strong correlations among different observers regardless of level of expertise. EF from AutoLV analysis had moderately strong correlations among different observers. CONCLUSION Automated pediatric LV analysis is feasible in normal hearts. Machine learning-enabled image analysis saves time and produces results that are comparable to traditional methods.
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Affiliation(s)
- Ling Li
- Department of Pediatric Cardiology, University of Nebraska College of Medicine and Children's Hospital and Medical Center Omaha, Omaha, NE, USA.
- Pediatric Cardiology, Child Health Research Institute, Department of Pediatrics, University of Nebraska College of Medicine, 42nd and Emile, Omaha, NE, 68198, USA.
| | - Paul Homer
- Department of Pediatric Cardiology, University of Nebraska College of Medicine and Children's Hospital and Medical Center Omaha, Omaha, NE, USA
| | - Mary Craft
- Department of Pediatric Cardiology, University of Nebraska College of Medicine and Children's Hospital and Medical Center Omaha, Omaha, NE, USA
| | - Shelby Kutty
- Helen B. Taussig Heart Center, Department of Pediatrics, Johns Hopkins Hospital, Baltimore, MD, USA
| | - Adam Putschoegl
- Department of Pediatric Cardiology, University of Nebraska College of Medicine and Children's Hospital and Medical Center Omaha, Omaha, NE, USA
| | - Amanda Marshall
- Department of Pediatric Cardiology, University of Nebraska College of Medicine and Children's Hospital and Medical Center Omaha, Omaha, NE, USA
| | - David Danford
- Department of Pediatric Cardiology, University of Nebraska College of Medicine and Children's Hospital and Medical Center Omaha, Omaha, NE, USA
| | - Anji Yetman
- Department of Pediatric Cardiology, University of Nebraska College of Medicine and Children's Hospital and Medical Center Omaha, Omaha, NE, USA
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Labus J, Brand L, Feige K, Mehler O, Rahmanian P, Wahlers T, Böttiger BW, Wetsch WA, Mathes A. Intraoperative Assessment of Noninvasive Left Ventricular Myocardial Work Indices in Patients Undergoing Aortic Valve Replacement. J Cardiothorac Vasc Anesth 2024:S1053-0770(24)00440-3. [PMID: 39069381 DOI: 10.1053/j.jvca.2024.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 06/12/2024] [Accepted: 07/03/2024] [Indexed: 07/30/2024]
Abstract
OBJECTIVE Evaluation of noninvasive left ventricular (LV) myocardial work (MW) enables insights into cardiac contractility and efficacy beyond conventional echocardiography. However, there is limited intraoperative data on patients undergoing surgical aortic valve replacement (AVR). The aim of this study was to describe the feasibility and the intraoperative course of this technique of ventricular function assessment in these patients and compare it to conventional two (2D)- and three-dimensional (3D) echocardiographic measurements and strain analysis. DESIGN Prospective observational study. SETTING Single university hospital. PARTICIPANTS Twenty-five patients scheduled for isolated AVR with preoperative preserved left and right ventricular function, sinus rhythm, without significant other heart valve disease or pulmonary hypertension, and an uneventful intraoperative course. INTERVENTIONS Transesophageal echocardiography was performed after induction of anesthesia (T1), after termination of cardiopulmonary bypass (T2), and after sternal closure (T3). Evaluation was performed in stable hemodynamics, in sinus rhythm or atrial pacing and vasopressor support with norepinephrine ≤ 0.1 µg/kg/min. MEASUREMENTS AND MAIN RESULTS EchoPAC v206 software (GE Vingmed Ultrasound AS, Norway) was used for analysis of 2D and 3D LV ejection fraction (EF), LV global longitudinal strain (GLS), LV global work index (GWI), LV global constructive work (GCW), LV global wasted work (GWW), and LV global work efficiency (GWE). Estimation of myocardial work was feasible in all patients. Although there was no significant difference in the values of 2D and 3D EF, GWI and GCW decreased significantly after AVR (T1 v T2, 1,647 ± 380 mmHg% v 1,021 ± 233 mmHg%, p < 0.001; T1 v T2, 2,095 ± 433 mmHg% v 1,402 ± 242 mmHg%, p < 0.001, respectively), while GWW remained unchanged (T1 v T2, 296 mmHg% [IQR 178-452) v 309 mmHg% [IQR 255-438), p = 0.97). This resulted in a decreased GWE directly after bypass (T1 v T2, 84% ± 6% v 78% ± 5%, p < 0.001), but GWE already improved at the end of surgery (T2 v T3, 78% ± 5% v 81% ± 5%, p = 0.003). There was no significant change in the values of GWI, GCW, or 2D and 3D LVEF before and after sternal closure (T2 v T3). CONCLUSION LV MW analysis showed a reduction of LV workload after bypass in our group of patients, which was not detected by conventional echocardiographic measures. This evolving technique provides deeper insights into cardiac energetics and efficiency in the perioperative course of aortic valve replacement surgery.
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Affiliation(s)
- Jakob Labus
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany.
| | - Lukas Brand
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Katharina Feige
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Oliver Mehler
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Parwis Rahmanian
- Department of Cardiothoracic Surgery, Heart Center, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Thorsten Wahlers
- Department of Cardiothoracic Surgery, Heart Center, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Bernd W Böttiger
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Wolfgang A Wetsch
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Alexander Mathes
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
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You JY, Sato R, Chawla S, Kapoor A, Wang X, Collier P, Auzinger G, Duggal A, Dugar S. Hemodynamic profile of cirrhotic patients with sepsis and septic shock: A propensity score matched case-control study. J Crit Care 2024; 81:154532. [PMID: 38330737 DOI: 10.1016/j.jcrc.2024.154532] [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: 09/26/2023] [Revised: 01/15/2024] [Accepted: 02/01/2024] [Indexed: 02/10/2024]
Abstract
PURPOSE Our understanding of hemodynamics in cirrhotic patients with sepsis remains limited. Our study aims to investigate differences in hemodynamic profiles using echocardiography between septic patients with and without cirrhosis. MATERIALS AND METHODS This is a single-center, retrospective study of septic patients with echocardiogram within 3 days of ICU admission. We compared baseline characteristics, echocardiographic markers of LV systolic function arterial load between patients with and without cirrhosis. A propensity score-matched case-control model was developed to describe the differences in those echocardiography derived parameters between the groups. RESULTS 3151 patients with sepsis were included of which 422 (13%) had cirrhosis. In the propensity score matched group with 828 patients, cirrhotic patients had significantly higher left ventricular ejection fraction (64 vs.56%, p < 0.001) and stroke volume (72 vs.48 ml, p < 0.001) along with lower arterial elastance (Ea) (1.35 1vs.20.3, p < 0.001) and systemic vascular resistance (SVR) (851 vs.1209 dynes/s/m-5, p = 0.001). The left ventricular elastance (Ees) (2.83 vs 2.45, p = 0.002) was higher and ventricular-arterial coupling (Ea/Ees) (0.48 vs. 0.86, p < 0.001) lower in cirrhotic compared to non-cirrhotic. CONCLUSIONS Septic patients with cirrhosis had higher LVEF with lower Ea and SVR with higher Ees and significantly lower Ea/Ees suggesting vasodilation as the principal driver of the hyperdynamic profile in cirrhosis.
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Affiliation(s)
- Jee Young You
- Department of Critical Care Medicine, Respiratory Institute, Cleveland Clinic, Cleveland, OH, USA.
| | - Ryota Sato
- Division of Critical Care Medicine, Department of Medicine, The Queen's Medical Center, Honolulu, HI, USA.
| | - Sanchit Chawla
- Department of Critical Care Medicine, Respiratory Institute, Cleveland Clinic, Cleveland, OH, USA.
| | - Aanchal Kapoor
- Department of Critical Care Medicine, Respiratory Institute, Cleveland Clinic, Cleveland, OH, USA.
| | - Xiaofeng Wang
- Department of Quantitative Health Sciences, Cleveland Clinic, Cleveland, OH, USA.
| | - Patrick Collier
- Department of Cardiovascular Medicine, Heart, Vascular, and Thoracic Institute, Cleveland Clinic, Cleveland, OH, USA.
| | - Georg Auzinger
- Department of Critical Care, Cleveland Clinic London, London, UK; Reader in Critical Care King's College London, London, UK; Cleveland Clinic Lerner College of Medicine, Case Western University Reserve University, Cleveland, OH, USA.
| | - Abhijit Duggal
- Department of Critical Care Medicine, Respiratory Institute, Cleveland Clinic, Cleveland, OH, USA; Cleveland Clinic Lerner College of Medicine, Case Western University Reserve University, Cleveland, OH, USA.
| | - Siddharth Dugar
- Department of Critical Care Medicine, Respiratory Institute, Cleveland Clinic, Cleveland, OH, USA; Cleveland Clinic Lerner College of Medicine, Case Western University Reserve University, Cleveland, OH, USA.
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Labus J, Fassl J. Myocardial Work: A Response. J Cardiothorac Vasc Anesth 2024:S1053-0770(24)00323-9. [PMID: 38880674 DOI: 10.1053/j.jvca.2024.05.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/07/2024] [Accepted: 05/11/2024] [Indexed: 06/18/2024]
Affiliation(s)
- Jakob Labus
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Jens Fassl
- Department of Cardiac Anesthesiology, Heart Center Dresden, University Hospital, Dresden, Germany
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Károlyi M, Polacin M, Kolossváry M, Sokolska JM, Matziris I, Weber L, Alkadhi H, Manka R. Comparative analysis of late gadolinium enhancement assessment techniques for monitoring fibrotic changes in myocarditis follow-up. Eur Radiol 2024:10.1007/s00330-024-10756-x. [PMID: 38703188 DOI: 10.1007/s00330-024-10756-x] [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: 11/17/2023] [Revised: 02/05/2024] [Accepted: 03/11/2024] [Indexed: 05/06/2024]
Abstract
OBJECTIVES To compare the repeatability and interrelation of various late gadolinium enhancement (LGE) assessment techniques for monitoring fibrotic changes in myocarditis follow-up. MATERIALS AND METHODS LGE extent change between baseline and 3-month cardiovascular magnetic resonance (CMR) was compared in patients with acute myocarditis using the full width at half maximum (FWHM), gray-scale thresholds at 5 and 6 standard deviations (SD5 and SD6), visual assessment with threshold (VAT) and full manual (FM) techniques. In addition, visual presence score (VPS), visual transmurality score (VTS), and a simplified visual change score (VCS) were assessed. Intraclass-correlation (ICC) was used to evaluate repeatability, and methods were compared using Spearman's correlation. RESULTS Forty-seven patients (38 male, median age: 27 [IQR: 21; 38] years) were included. LGE extent change differed among quantitative techniques (p < 0.01), with variability in the proportion of patients showing LGE change during follow-up (FWHM: 62%, SD5: 74%, SD6: 66%, VAT: 43%, FM: 60%, VPS: 53%, VTS: 77%, VCS: 89%). Repeatability was highest with FWHM (ICC: 0.97) and lowest with SD5 (ICC: 0.89). Semiquantitative scoring had slightly lower values (VPS ICC: 0.81; VTS ICC: 0.71). VCS repeatability was excellent (ICC: 0.93). VPS and VTS correlated with quantitative techniques, while VCS was positively associated with VPS, VTS, VAT, and FM, but not with FWHM, SD5, and SD6. CONCLUSION FWHM offers the least observer-dependent LGE follow-up after myocarditis. VPS, VTS, and VCS are practical alternatives, showing reliable correlations with quantitative methods. Classification of patients exhibiting either stable or changing LGE relies on the assessment technique. CLINICAL RELEVANCE STATEMENT This study shows that LGE monitoring in myocarditis is technique-dependent; the FWHM method yields the most consistent fibrotic tracking results, with scoring-based techniques as reliable alternatives. KEY POINTS Recognition of fibrotic changes during myocarditis follow-up is significantly influenced by the choice of the quantification technique employed. The FWHM technique ensures highly repeatable tracking of myocarditis-related LGE changes. Segment-based visual scoring and the simplified visual change score offer practical, reproducible alternatives in resource-limited settings.
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Affiliation(s)
- Mihály Károlyi
- Diagnostic and Interventional Radiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Malgorzata Polacin
- Diagnostic and Interventional Radiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
- Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland
| | - Márton Kolossváry
- Gottsegen National Cardiovascular Center, Budapest, Hungary
- Physiological Controls Research Center, University Research and Innovation Center, Óbuda University, Budapest, Hungary
| | - Justyna M Sokolska
- Department of Cardiology, University Heart Center, University Hospital Zurich, University of Zurich, Zurich, Switzerland
- Department of Heart Diseases, Wroclaw Medical University, Wroclaw, Poland
| | - Ioannis Matziris
- Department of Cardiology, University Heart Center, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Lucas Weber
- Diagnostic and Interventional Radiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
- Department of Radiology, Cantonal Hospital Winterthur, Winterthur, Switzerland
| | - Hatem Alkadhi
- Diagnostic and Interventional Radiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Robert Manka
- Diagnostic and Interventional Radiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland.
- Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland.
- Department of Cardiology, University Heart Center, University Hospital Zurich, University of Zurich, Zurich, Switzerland.
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Conlon TW, Baker D, Bhombal S. Cardiac point-of-care ultrasound: Practical integration in the pediatric and neonatal intensive care settings. Eur J Pediatr 2024; 183:1525-1541. [PMID: 38236402 DOI: 10.1007/s00431-023-05409-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 12/20/2023] [Accepted: 12/23/2023] [Indexed: 01/19/2024]
Abstract
Cardiac point-of-care ultrasound (POCUS) is a technology increasingly leveraged at the bedside by pediatric critical care and neonatology providers to identify real-time hemodynamic pathophysiology. We present a framework for (1) identifying the scope of cardiac POCUS within the clinical practice setting, (2) standardizing views for protocolized hemodynamic assessment relevant to pediatric critical illness and (3) integrating POCUS findings for therapeutic guidance. Within the review, we also discuss practical strengths and limitations to image acquisition and interpretation within the varied cardiac POCUS views. Finally, we explore unique considerations within the neonatal population. Conclusion: Cardiac POCUS is a technology and tool that reveals important real-time information at the bedside of the critically ill child and infant. Understanding strengths and limitations of cardiac POCUS views and protocolizing an approach to answer focused clinical questions provides a framework for training and translation to clinical care. What is Known: • Ultrasound technology is now ubiquitous among pediatric critical care and neonatology settings, and growing literature supports an expanded role in not only procedural but also diagnostic applications. • Cardiac POCUS influences provider perception of pathophysiology and changes clinical management. What is New: • Effective cardiac POCUS training and subsequent translation to clinical practice should improve when clinical questions and protocolized approaches to image acquisition are standardized within a specialty. • Cardiac POCUS views have strengths and limitations which must be recognized when assessing the hemodynamic profile of a child or neonate.
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Affiliation(s)
- Thomas W Conlon
- The Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, 3401 Civic Center Blvd., Philadelphia, PA, 19104, USA.
| | - David Baker
- The Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, 3401 Civic Center Blvd., Philadelphia, PA, 19104, USA
| | - Shazia Bhombal
- Division of Neonatology, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta, GA, USA
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Almeida JS, Gomez Ravetti C, de Melo Andrade MV, de Andrade Filho A, Silva E Castro R, Pires Costa Pimenta P, Frizera Vassallo P, Nobre V. Use of point-of-care ultrasound to assess the severity of scorpion stings in hospitalized patients. Clin Toxicol (Phila) 2024; 62:145-151. [PMID: 38563526 DOI: 10.1080/15563650.2024.2328346] [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: 11/13/2023] [Accepted: 03/04/2024] [Indexed: 04/04/2024]
Abstract
INTRODUCTION Scorpionism is a public health problem, especially in tropical regions. In Brazil, the prevalence of envenomation by scorpions is high, and the average national lethality is around 0.16 percent. The Tityus serrulatus scorpion is the primary species of medical importance. However, objective tools to predict and define the severity of these envenomations are lacking. MATERIALS AND METHODS This was an observational study conducted among patients aged 0-19 years with scorpionism. Patients were admitted to a reference hospital between December 2020 and May 2022. Point-of-care ultrasound was performed within 24 hours of the scorpion sting. RESULTS Forty-nine patients were included, with a median age of 3.6 (interquartile range 2.3-5.3) years and a predominance of females (51 percent). Fifteen patients (30.6 percent) presented major life-threatening signs, 32 (65.3 percent) minor systemic manifestations, and two (4.1 percent) only local manifestations. Left ventricular dysfunction was identified in 13 patients (26.5 percent). Ten patients (20.4 percent) presented pattern B (visualization of three or more B lines in the evaluated quadrant) in at least one lung window. The sensitivity and specificity of cardiac and pulmonary ultrasound to identify the most severely ill patients were 86 percent and 94 percent, respectively. DISCUSSION The changes found on point-of-care ultrasound were associated with life-threatening signs. All patients with class III envenomation were referred to the intensive care unit, showing the importance of early identification of this subgroup. The main limitations were the small sample size and the fact that admission to intensive care was not based on systematic criteria. CONCLUSIONS Point-of-care ultrasound is able to identify early signs of pulmonary congestion and heart failure in scorpionism. It can be useful for the objective selection of patients who are at a higher risk of complications and death and who require intensive support; it may also be valuable for periodic reassessments. Point-of-care ultrasound is a valuable tool for identifying and monitoring severe cases of scorpionism.
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Affiliation(s)
- Juliana Sartorelo Almeida
- Departamento de Toxicologia do Hospital João XXIII, Centro de Informação e Assistência Toxicológica de Minas Gerais (CIAToxMG), Belo Horizonte, Brazil
- Núcleo Interdisciplinar de Investigação em Medicina Intensiva (NIIMI), Belo Horizonte, Brazil
| | - Cecilia Gomez Ravetti
- Núcleo Interdisciplinar de Investigação em Medicina Intensiva (NIIMI), Belo Horizonte, Brazil
- Departamento de Clínica Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Marcus Vinícius de Melo Andrade
- Núcleo Interdisciplinar de Investigação em Medicina Intensiva (NIIMI), Belo Horizonte, Brazil
- Departamento de Clínica Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Adebal de Andrade Filho
- Departamento de Toxicologia do Hospital João XXIII, Centro de Informação e Assistência Toxicológica de Minas Gerais (CIAToxMG), Belo Horizonte, Brazil
| | - Rafael Silva E Castro
- Departamento de Clínica Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Pedro Pires Costa Pimenta
- Departamento de Clínica Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Paula Frizera Vassallo
- Núcleo Interdisciplinar de Investigação em Medicina Intensiva (NIIMI), Belo Horizonte, Brazil
- Departamento de Clínica Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Vandack Nobre
- Núcleo Interdisciplinar de Investigação em Medicina Intensiva (NIIMI), Belo Horizonte, Brazil
- Departamento de Clínica Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
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Choi S, Nah S, Cho YS, Moon I, Lee JW, Ah Lee C, Moon JE, Han S. Accuracy of visual estimation of ejection fraction in patients with heart failure using augmented reality glasses. Heart 2024; 110:432-440. [PMID: 37940379 DOI: 10.1136/heartjnl-2023-323067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 09/23/2023] [Indexed: 11/10/2023] Open
Abstract
OBJECTIVE Left ventricular ejection fraction (LVEF) is measured to assess haemodynamic status and cardiac function. It may be difficult to accurately measure in patients with heart failure (HF) as they are often poorly echogenic. The augmented reality (AR) technology is expected to provide real-time guidance that will enable more accurate measurements. METHODS A prospective, randomised, case-crossover simulation study was conducted to confirm the effect of AR glasses on echocardiographic interpretation in patients with HF. 22 emergency physicians participated. The participants were randomly assigned to two groups. Group A estimated the visual ejection fraction of echocardiographic video clips without the AR glasses, while group B estimated them with glasses. After a washout period, the two groups crossed over. The estimates were then compared with the ejection fraction measurements obtained by echocardiologists; intraclass correlation coefficient (ICC) was calculated. RESULTS The ICC with glasses (0.969, 95% CI 0.966 to 0.971) was higher than without glasses (0.705, 95% CI 0.681 to 0.727) among all participants. In the subgroup analysis, the first-year and second-year residents showed the most significant difference, with an ICC of 0.568 (95% CI 0.508 to 0.621) without glasses compared with 0.963 (95% CI 0.958 to 0.968) with glasses. For the third-year and fourth-year residents group, the ICC was 0.754 (95% CI 0.720 to 0.784) without glasses and 0.972 (95% CI 0.958 to 0.968) with glasses. Among the group of attending physicians, the ICC was 0.807 (95% CI 0.775 to 0.834) without glasses and 0.973 (95% CI 0.969 to 0.977) with glasses. CONCLUSIONS AR glasses could be helpful in measuring LVEF and could be more helpful to those with little visual estimation experience.
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Affiliation(s)
- Sungwoo Choi
- Department of Emergency Medicine, Soonchunhyang University Hospital Bucheon, Bucheon, Korea (the Republic of)
| | - Sangun Nah
- Department of Emergency Medicine, Soonchunhyang University Hospital Bucheon, Bucheon, Korea (the Republic of)
| | - Young Soon Cho
- Department of Emergency Medicine, Soonchunhyang University Hospital Bucheon, Bucheon, Korea (the Republic of)
| | - Inki Moon
- Department of Cardiology, Soonchunhyang University Hospital Bucheon, Bucheon, Korea (the Republic of)
| | - Jae Wook Lee
- Department of Radiology, Soonchunhyang University Hospital Bucheon, Bucheon, Korea (the Republic of)
| | - Choung Ah Lee
- Department of Emergency Medicine, Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Korea (the Republic of)
| | - Ji Eun Moon
- Department of Biostatistics, Soonchunhyang University Hospital Bucheon, Bucheon, Korea (the Republic of)
| | - Sangsoo Han
- Department of Emergency Medicine, Soonchunhyang University Hospital Bucheon, Bucheon, Korea (the Republic of)
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Gonzalez FA, Santonocito C, Maybauer MO, Lopes LR, Almeida AG, Sanfilippo F. Diastology in the intensive care unit: Challenges for the assessment and future directions. Echocardiography 2024; 41:e15773. [PMID: 38380688 DOI: 10.1111/echo.15773] [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: 12/17/2023] [Revised: 01/19/2024] [Accepted: 01/20/2024] [Indexed: 02/22/2024] Open
Abstract
Myocardial dysfunction is common in patients admitted to the intensive care unit (ICU). Septic disease frequently results in cardiac dysfunction, and sepsis represents the most common cause of admission and death in the ICU. The association between left ventricular (LV) systolic dysfunction and mortality is not clear for critically ill patients. Conversely, LV diastolic dysfunction (DD) seems increasingly recognized as a factor associated with poor outcomes, not only in sepsis but also more generally in critically ill patients. Despite recent attempts to simplify the diagnosis and grading of DD, this remains relatively complex, with the need to use several echocardiographic parameters. Furthermore, the current guidelines have several intrinsic limitations when applied to the ICU setting. In this manuscript, we discuss the challenges in DD classification when applied to critically ill patients, the importance of left atrial pressure estimates for the management of patients in ICU, and whether the study of cardiac dysfunction spectrum during critical illness may benefit from the integration of left ventricular and left atrial strain data to improve diagnostic accuracy and implications for the treatment and prognosis.
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Affiliation(s)
- Filipe A Gonzalez
- Intensive Care Department of Hospital Garcia de Orta, Almada, Portugal
- Centro Cardiovascular da Universidade de Lisboa, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Cristina Santonocito
- Department of Anesthesia and Intensive Care, "Policlinico-San Marco" University Hospital, Catania, Italy
| | - Marc O Maybauer
- Department of Anesthesiology, Division of Critical Care Medicine, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Luís Rocha Lopes
- Inherited Cardiac Disease Unit, Bart's Heart Centre St Bartholomew's Hospital London, London, UK
- Institute of Cardiovascular Science, University College London, London, UK
| | - Ana G Almeida
- Centro Cardiovascular da Universidade de Lisboa, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Filippo Sanfilippo
- Department of Anesthesia and Intensive Care, "Policlinico-San Marco" University Hospital, Catania, Italy
- Department of Surgery and Medical-Surgical Specialties, University of Catania, Catania, Italy
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Dadon Z, Orlev A, Butnaru A, Rosenmann D, Glikson M, Gottlieb S, Alpert EA. Empowering Medical Students: Harnessing Artificial Intelligence for Precision Point-of-Care Echocardiography Assessment of Left Ventricular Ejection Fraction. Int J Clin Pract 2023; 2023:5225872. [PMID: 38078051 PMCID: PMC10699938 DOI: 10.1155/2023/5225872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 10/14/2023] [Accepted: 11/14/2023] [Indexed: 12/18/2023] Open
Abstract
Introduction Point-of-care ultrasound (POCUS) use is now universal among nonexperts. Artificial intelligence (AI) is currently employed by nonexperts in various imaging modalities to assist in diagnosis and decision making. Aim To evaluate the diagnostic accuracy of POCUS, operated by medical students with the assistance of an AI-based tool for assessing the left ventricular ejection fraction (LVEF) of patients admitted to a cardiology department. Methods Eight students underwent a 6-hour didactic and hands-on training session. Participants used a hand-held ultrasound device (HUD) equipped with an AI-based tool for the automatic evaluation of LVEF. The clips were assessed for LVEF by three methods: visually by the students, by students + the AI-based tool, and by the cardiologists. All LVEF measurements were compared to formal echocardiography completed within 24 hours and were evaluated for LVEF using the Simpson method and eyeballing assessment by expert echocardiographers. Results The study included 88 patients (aged 58.3 ± 16.3 years). The AI-based tool measurement was unsuccessful in 6 cases. Comparing LVEF reported by students' visual evaluation and students + AI vs. cardiologists revealed a correlation of 0.51 and 0.83, respectively. Comparing these three evaluation methods with the echocardiographers revealed a moderate/substantial agreement for the students + AI and cardiologists but only a fair agreement for the students' visual evaluation. Conclusion Medical students' utilization of an AI-based tool with a HUD for LVEF assessment achieved a level of accuracy similar to that of cardiologists. Furthermore, the use of AI by the students achieved moderate to substantial inter-rater reliability with expert echocardiographers' evaluation.
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Affiliation(s)
- Ziv Dadon
- Jesselson Integrated Heart Center, Shaare Zedek Medical Center, Jerusalem, Israel
- Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Amir Orlev
- Jesselson Integrated Heart Center, Shaare Zedek Medical Center, Jerusalem, Israel
- Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Adi Butnaru
- Jesselson Integrated Heart Center, Shaare Zedek Medical Center, Jerusalem, Israel
| | - David Rosenmann
- Jesselson Integrated Heart Center, Shaare Zedek Medical Center, Jerusalem, Israel
| | - Michael Glikson
- Jesselson Integrated Heart Center, Shaare Zedek Medical Center, Jerusalem, Israel
- Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Shmuel Gottlieb
- Jesselson Integrated Heart Center, Shaare Zedek Medical Center, Jerusalem, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Evan Avraham Alpert
- Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
- Department of Emergency Medicine, Shaare Zedek Medical Center, Jerusalem, Israel
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11
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Daka B, Bennet L, Råstam L, Hellgren MI, Li Y, Magnusson M, Lindblad U. Association between self-reported alcohol consumption and diastolic dysfunction: a cross-sectional study. BMJ Open 2023; 13:e069937. [PMID: 37821143 PMCID: PMC10583109 DOI: 10.1136/bmjopen-2022-069937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 09/26/2023] [Indexed: 10/13/2023] Open
Abstract
BACKGROUND AND OBJECTIVES While alcohol consumption is associated with common risk factors for diastolic dysfunction the independent impact of low levels of alcohol consumption on this condition in a community setting is still unclear.Thus, the aim of this study was to explore this association in a representative population sample employing optimal echocardiographic techniques. DESIGN Cross-sectional observational study in community-based population. SETTINGS, PARTICIPANTS AND METHODS Participants between 30 and 75 years of age were consecutively invited to a physical examination, interview, conventional echocardiography, including Tissue Velocity Imaging. Diastolic dysfunction was defined according to the European Society of Cardiology criteria, excluding subjects with ejection fraction <45%, self-reported history of heart failure or atrial fibrillation on ECG. Self-reported alcohol intake using a validated questionnaire was categorised as no intake, low and medium-high intake. RESULTS In total, 500 men and 538 women (mean age 55.4±13) were successfully examined. Diastolic dysfunction was identified in 16% (79/500) of the men and 13% (58/538) of the women. The multivariable adjusted model revealed a strong and independent association between alcohol intake and diastolic dysfunction. In fact, using no alcohol intake as reference, diastolic dysfunction was independently associated with alcohol consumption in a dose-dependent fashion; low consumption, OR 2.3 (95% CI 1.3 to 4.0) and medium-high consumption OR 3.1 (95% CI 1.6 to 6.2), respectively. CONCLUSION There was a significant association between alcohol consumption and diastolic dysfunction starting already at low levels that was supported by a dose-dependent pattern. These results need confirmatory studies and are important in public health policies.
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Affiliation(s)
- Bledar Daka
- Medicine, University of Gothenburg Sahlgrenska Academy, Goteborg, Sweden
| | - Louise Bennet
- Family Medicine, Deaprtment of Clinical Sciences, Lund University, Malmo, Sweden
| | - Lennart Råstam
- Family Medicine, Deaprtment of Clinical Sciences, Lund University, Malmo, Sweden
| | | | - Ying Li
- Medicine, Sahlgrenska Akademy, Goteborg, Sweden
| | | | - Ulf Lindblad
- Family Medicine, Deaprtment of Clinical Sciences, Lund University, Malmo, Sweden
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12
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Prost A, Bourgaux JF, Louart B, Caillo L, Daurat A, Lefrant JY, Pouderoux P, Muller L, Roger C. Echocardiographic hemodynamic assessment in decompensated cirrhosis: comparison between Intensivists and Gastroenterologists. J Clin Monit Comput 2023; 37:1219-1228. [PMID: 36840793 PMCID: PMC9958314 DOI: 10.1007/s10877-023-00983-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 02/08/2023] [Indexed: 02/26/2023]
Abstract
BACKGROUND & AIMS Ascites is a frequent complication of cirrhosis. In intensive care units, initial hemodynamic assessment is frequently performed by echocardiography. This study evaluated the feasibility and usefulness of early hemodynamic assessment in the gastroenterology ward. METHODS This observational cohort study prospectively included all patients admitted to a teaching hospital's gastroenterology unit for decompensated cirrhosis. A gastroenterologist with minimal training and an intensivist both performed an echocardiography exam. The primary outcome was inter-rater agreement and reliability for three echocardiography parameters: visual LVEF (Left Ventricular Ejection Fraction), subaortic VTI (velocity time integral) and E wave velocity. Secondary outcomes were agreement for presence of pleural effusion, description of 3 hemodynamics profiles (hypovolemic, hyperkinetic and intermediate), and 28-day mortality. RESULTS From March 2018 to March 2020, 53 patients were included. The median age was 62 years and 81% were men. Patients presented mostly advanced liver disease, with 43% Child-Pugh C and median MELD score of 15.2. The limits of agreement between intensivists and gastroenterologists for subaortic VTI were - 6.6 to 7.2 cm, and ranged from - 0.6 to 0.37 m.s-1 for E wave velocity. Clinically significant differences between intensivists and gastroenterologists were found in 22% for subaortic VTI and 24.5% for E wave velocity. Reliability was good for subaortic VTI (ICC: 0.79, 95% CI [0.58; 0.9;]) and moderate for E wave velocity (0.53, 95% CI [0.19; 0.74]). The three hemodynamics profiles had different prognosis, with a 28-day mortality for Hypovolemic, Intermediate and Hyperkinetic group of 31, 18, and 4%, respectively. CONCLUSION Reliability of hemodynamic assessment by gastroenterologists was good, while agreement was unsatisfactory, advocating for further training. Transthoracic echocardiography can differentiate hypovolemia from hyperkinetic states. The role of transthoracic echocardiography in managing decompensated cirrhosis requires further study. CLINICAL TRIAL NUMBER NCT03650660.
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Affiliation(s)
- Ardavan Prost
- Department of Hepatology and Gastroenterology, CHU Nimes, University of Montpellier, Nîmes, France.
- Nîmes University Hospital, Place du Pr Robert Debré, 30029, Nîmes, France.
| | - Jean François Bourgaux
- Department of Hepatology and Gastroenterology, CHU Nimes, University of Montpellier, Nîmes, France
| | - Benjamin Louart
- Department of Anesthesia and Intensive Care, CHU Nimes, University of Montpellier, Nîmes, France
| | - Ludovic Caillo
- Department of Hepatology and Gastroenterology, CHU Nimes, University of Montpellier, Nîmes, France
| | - Aurélien Daurat
- Department of Anesthesia and Intensive Care, CHU Nimes, University of Montpellier, Nîmes, France
| | - Jean Yves Lefrant
- Department of Anesthesia and Intensive Care, CHU Nimes, University of Montpellier, Nîmes, France
| | - Philippe Pouderoux
- Department of Hepatology and Gastroenterology, CHU Nimes, University of Montpellier, Nîmes, France
| | - Laurent Muller
- Department of Anesthesia and Intensive Care, CHU Nimes, University of Montpellier, Nîmes, France
| | - Claire Roger
- Department of Anesthesia and Intensive Care, CHU Nimes, University of Montpellier, Nîmes, France
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13
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Witte M, Ott M, Schilling T, Müller M, Schmid S, Krohn A. Implementing an interprofessional point-of-care ultrasound protocol for dyspneic patients in an emergency department as a blended learning concept-Feasibility of Employing Thoracic Ultrasound in Shortness of Breath. Front Med (Lausanne) 2023; 10:1193243. [PMID: 37675133 PMCID: PMC10478716 DOI: 10.3389/fmed.2023.1193243] [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: 03/24/2023] [Accepted: 08/07/2023] [Indexed: 09/08/2023] Open
Abstract
Objective Dyspnea is a common symptom in the Emergency Department, with a wide variety of differential diagnoses. Previous research has demonstrated the diagnostic accuracy of Point-of-Care Ultrasound (POCUS) in this field of interest. Our goal was to better establish sonography in our emergency department with a practicable and time effective method. Therefore, we implemented a sonography protocol in an interprofessional emergency team using blended learning as a modern didactic approach and evaluated the learning and teaching success. We named the study FETUS, which stands for "Feasibility of Employing Thoracic Ultrasound in Shortness of Breath." Methods A demonstration of the POCUS protocol was given, followed by individual supervision during clinical routine. A written manual, a pocket card, and further materials for personal training supplemented the training. A post-training questionnaire measured several parameters regarding the training, e.g., subjective skill-acquisition or media use. Results 32 medical and nursing staff participated in this study, 14 of whom completed the questionnaire. All training modalities offered were well received. A pre-post comparison of subjective sonographic competence shows a significant increase in both medical and nursing staff.The other items surveyed also indicate the success of the intervention undertaken. Conclusion The use of different media as a blended learning approach can support the implementation of new measures in the ongoing working routine within an interprofessional team.
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Affiliation(s)
- Matthies Witte
- Department of Interdisciplinary Acute, Emergency and Intensive Care Medicine (DIANI), Klinikum Stuttgart, Stuttgart, Germany
| | - Matthias Ott
- Department of Interdisciplinary Acute, Emergency and Intensive Care Medicine (DIANI), Klinikum Stuttgart, Stuttgart, Germany
| | - Tobias Schilling
- Department of Interdisciplinary Acute, Emergency and Intensive Care Medicine (DIANI), Klinikum Stuttgart, Stuttgart, Germany
| | - Martina Müller
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg, Regensburg, Germany
| | - Stephan Schmid
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg, Regensburg, Germany
| | - Alexander Krohn
- Department of Interdisciplinary Acute, Emergency and Intensive Care Medicine (DIANI), Klinikum Stuttgart, Stuttgart, Germany
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14
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Raksamani K, Noirit A, Chaikittisilpa N. Comparison of visual estimation and quantitative measurement of left ventricular ejection fraction in untrained perioperative echocardiographers. BMC Anesthesiol 2023; 23:106. [PMID: 37005582 PMCID: PMC10067170 DOI: 10.1186/s12871-023-02067-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 03/24/2023] [Indexed: 04/04/2023] Open
Abstract
BACKGROUND Perioperative evaluation of the left ventricular systolic function is essential information to help diagnose and manage life-threatening perioperative emergencies. Although quantifying the left ventricular ejection fraction (LVEF) is recommended to determine the left ventricular function, it may not always be feasible in emergency perioperative settings. This study compared the visual estimation of LVEF (eyeballing) by noncardiac anesthesiologists with the quantitative LVEF measured using a modified Simpson's biplane method. METHODS Transesophageal echocardiographic (TEE) studies of 35 patients were selected and 3 different echocardiographic views (the mid-esophageal four chamber view, the mid-esophageal two chamber view, and the transgastric mid-papillary short axis view) were recovered from each study and displayed in random order. Two cardiac anesthesiologists certified in perioperative echocardiography independently measured LVEF using the modified Simpson method and categorized LVEF into five grades: hyperdynamic LVEF, normal, mildly reduced LVEF, moderately reduced LVEF and severely reduced LVEF. Seven noncardiac anesthesiologists with limited experience in echocardiography also reviewed the same TEE studies and estimated the LVEF and graded LV function. The precision of the LV function classification and the correlation between visual estimation of LVEF and quantitative LVEF were calculated. The agreement of measurements between the two methods was also assessed. RESULTS Pearson's correlation between the LVEF estimated by the participants and the quantitative LVEF using the modified Simpson method was 0.818 (p < 0.001). Of a total of 245 responses, 120 (49.0%) responses were correct grading of the LV function. Participants were able to classify the LV function more accurately in the LV function grades 1 and 5 (65.3%). The 95% level of agreement of the Bland-Altman method was - 11.3-24.5. -21.9-22.6, - 23.1-26.5, - 20.5-22.0 and - 26.6-11.1 for LV grade 1 to 5, respectively. CONCLUSION Visual estimation of LVEF in perioperative TEE has acceptable accuracy in untrained echocardiographers and can be used for rescue TEE.
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Affiliation(s)
- Kasana Raksamani
- Department of Anesthesiology, Faculty of Medicine Siriraj Hospital, 2 Wanglang Road, Bangkok Noi, Bangkok, Thailand.
| | - Apinya Noirit
- Department of Anesthesiology, Faculty of Medicine Siriraj Hospital, 2 Wanglang Road, Bangkok Noi, Bangkok, Thailand
| | - Nophanan Chaikittisilpa
- Department of Anesthesiology, Faculty of Medicine Siriraj Hospital, 2 Wanglang Road, Bangkok Noi, Bangkok, Thailand
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15
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Komanek T, Rabis M, Omer S, Peters J, Frey UH. Quantification of left ventricular ejection fraction and cardiac output using a novel semi-automated echocardiographic method: a prospective observational study in coronary artery bypass patients. BMC Anesthesiol 2023; 23:65. [PMID: 36855077 PMCID: PMC9972694 DOI: 10.1186/s12871-023-02025-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 02/21/2023] [Indexed: 03/02/2023] Open
Abstract
BACKGROUND Echocardiographic quantification of ejection fraction (EF) by manual endocardial tracing requires training, is time-consuming and potentially user-dependent, whereas determination of cardiac output by pulmonary artery catheterization (PAC) is invasive and carries a risk of complications. Recently, a novel software for semi-automated EF and CO assessment (AutoEF) using transthoracic echocardiography (TTE) has been introduced. We hypothesized that AutoEF would provide EF values different from those obtained by the modified Simpson's method in transoesophageal echocardiography (TOE) and that AutoEF CO measurements would not agree with those obtained via VTILVOT in TOE and by thermodilution using PAC. METHODS In 167 patients undergoing coronary artery bypass graft surgery (CABG), TTE cine loops of apical 4- and 2-chamber views were recorded after anaesthesia induction under steady-state conditions. Subsequently, TOE was performed following a standardized protocol, and CO was determined by thermodilution. EF and CO were assessed by TTE AutoEF as well as TOE, using the modified Simpson's method, and Doppler measurements via velocity time integral in the LV outflow tract (VTILVOT). We determined Pearson's correlation coefficients r and carried out Bland-Altman analyses. The primary endpoints were differences in EF and CO. The secondary endpoints were differences in left ventricular volumes at end diastole (LVEDV) and end systole (LVESV). RESULTS AutoEF and the modified Simpson's method in TOE showed moderate EF correlation (r = 0.38, p < 0.01) with a bias of -12.6% (95% limits of agreement (95%LOA): -36.6 - 11.3%). AutoEF CO correlated poorly both with VTILVOT in TOE (r = 0.19, p < 0.01) and thermodilution (r = 0.28, p < 0.01). The CO bias between AutoEF and VTILVOT was 1.33 l min-1 (95%LOA: -1.72 - 4.38 l min-1) and 1.39 l min-1 (95%LOA -1.34 - 4.12 l min-1) between AutoEF and thermodilution, respectively. AutoEF yielded both significantly lower EF (EFAutoEF: 42.0% (IQR 29.0 - 55.0%) vs. EFTOE Simpson: 55.2% (IQR 40.1 - 70.3%), p < 0.01) and CO values than the reference methods (COAutoEF biplane: 2.30 l min-1 (IQR 1.30 - 3.30 l min-1) vs. COVTI LVOT: 3.64 l min-1 (IQR 2.05 - 5.23 l min-1) and COPAC: 3.90 l min-1 (IQR 2.30 - 5.50 l min-1), p < 0.01)). CONCLUSIONS AutoEF correlated moderately with TOE EF determined by the modified Simpson's method but poorly both with VTILVOT and thermodilution CO. A systematic bias was detected overestimating LV volumes and underestimating both EF and CO compared to the reference methods. TRIAL REGISTRATION German Register for Clinical Trials (DRKS-ID DRKS00010666, date of registration: 08/07/2016).
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Affiliation(s)
- Thomas Komanek
- Klinik für Anästhesiologie, operative Intensivmedizin, Schmerz- und Palliativmedizin, Marien Hospital Herne - Universitätsklinikum der Ruhr-Universität Bochum, Hölkeskampring 40, 44625, Herne, Germany.,Klinik für Anästhesiologie und Intensivmedizin, Universität Duisburg-Essen und Universitätsklinikum Essen, Essen, Germany
| | - Marco Rabis
- Klinik für Anästhesiologie und Intensivmedizin, Universität Duisburg-Essen und Universitätsklinikum Essen, Essen, Germany
| | - Saed Omer
- Klinik für Anästhesiologie, operative Intensivmedizin, Schmerz- und Palliativmedizin, Marien Hospital Herne - Universitätsklinikum der Ruhr-Universität Bochum, Hölkeskampring 40, 44625, Herne, Germany.,Klinik für Anästhesiologie und Intensivmedizin, Universität Duisburg-Essen und Universitätsklinikum Essen, Essen, Germany
| | - Jürgen Peters
- Klinik für Anästhesiologie und Intensivmedizin, Universität Duisburg-Essen und Universitätsklinikum Essen, Essen, Germany
| | - Ulrich H Frey
- Klinik für Anästhesiologie, operative Intensivmedizin, Schmerz- und Palliativmedizin, Marien Hospital Herne - Universitätsklinikum der Ruhr-Universität Bochum, Hölkeskampring 40, 44625, Herne, Germany. .,Klinik für Anästhesiologie und Intensivmedizin, Universität Duisburg-Essen und Universitätsklinikum Essen, Essen, Germany.
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16
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Labus J, Foit A, Mehler O, Rahmanian P, Böttiger BW, Wetsch WA, Mathes A. Intraoperative Noninvasive Left Ventricular Myocardial Work Indices in Patients Undergoing On-Pump Coronary Artery Bypass Surgery. J Cardiothorac Vasc Anesth 2023; 37:221-231. [PMID: 36404229 DOI: 10.1053/j.jvca.2022.10.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/13/2022] [Accepted: 10/24/2022] [Indexed: 11/06/2022]
Abstract
OBJECTIVES Noninvasive echocardiographic analysis of left ventricular (LV) myocardial work (MW) enables insights into cardiac mechanics, contractility, and efficacy beyond ejection fraction (EF) and global longitudinal strain (GLS). However, there are limited perioperative data on patients undergoing coronary artery bypass graft (CABG) surgery. The authors aimed to describe the feasibility and the intraoperative course of this novel assessment tool of ventricular function in these patients, and compare it to conventional 2-dimensional (2D) and 3-dimensional (3D) echocardiographic parameters and strain analysis. DESIGN A prospective observational study. SETTING At a single university hospital. PARTICIPANTS Twenty-five patients with preoperative preserved LV and right ventricular function, sinus rhythm, without significant heart valve disease or pulmonary hypertension, and an uncomplicated intraoperative course scheduled for isolated on-pump CABG surgery. INTERVENTIONS Transesophageal echocardiography (TEE) was performed intraoperatively after the induction of anesthesia (T1), after termination of cardiopulmonary bypass (T2), and after sternal closure (T3). All measurements were performed under stable hemodynamic conditions, in sinus rhythm or atrial pacing, and vasopressor support with norepinephrine ≤ 0.1 µg/kg/min. MEASUREMENTS AND MAIN RESULTS The EchoPAC v204 software (GE Vingmed Ultrasound AS, Norway) was used for analysis of 2D and 3D LVEF, LV GLS, LV global work index (GWI), LV global constructive work (GCW), LV global wasted work (GWW), and LV global work efficiency (GWE). The MW analysis was feasible in all patients. Although there was no significant difference in the values of 2D and 3D EF during the intraoperative interval, GLS deteriorated significantly after CABG compared to assessment after induction of anesthesia (T1 v T2, -13.3 ± 3.0% v -11.6 ± 3.1%; p = 0.012). The GWI declined significantly after surgery (T1 v T2, 1,224 ± 312 mmHg% v 940 ± 267 mmHg%; p < 0.001), as well as GCW (T1 v T2, 1,460 ± 312 mmHg% v 1,244 ± 336 mmHg%; p = 0.005). The GWW increased after CABG (T1 v T2, 143 mmHg% (IQR 99-183) v 251 mmHg% (IQR 179-361); p < 0.001), and GWE decreased (T1 v T2, 89% (IQR 85-92) v 80% (IQR 75-87); p < 0.001). There were no significant changes in the values of 2D and 3D EF, GLS, GWI, GCW, GWW, and GWE before and after sternal closure (T2 v T3). CONCLUSION The intraoperative analysis of noninvasive echocardiographically-assessed LV MW indices is feasible. In the short-term period after uncomplicated on-pump CABG, GLS, as well as global and constructive MW, decreased, whereas wasted work increased, resulting in a less efficient left ventricle. None of these aspects was detected by conventional echocardiographic parameters. Therefore, strain and MW analysis might be more sensitive parameters in detecting myocardial dysfunction by TEE in the perioperative setting, adding information on perioperative cardiac energetics.
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Affiliation(s)
- Jakob Labus
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany.
| | - André Foit
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Oliver Mehler
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Parwis Rahmanian
- Department of Cardiothoracic Surgery, Heart Center, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Bernd W Böttiger
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Wolfgang A Wetsch
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Alexander Mathes
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Cologne, and Faculty of Medicine, University of Cologne, Cologne, Germany
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17
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Gotsman I, Leibowitz D, Keren A, Amir O, Zwas DR. Echocardiographic Characteristics and Clinical Outcomes of the Hyperdynamic Heart: A 'Super-Normal' Heart is not a Normal Heart. Am J Cardiol 2023; 187:119-126. [PMID: 36459734 DOI: 10.1016/j.amjcard.2022.10.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/18/2022] [Accepted: 10/13/2022] [Indexed: 11/30/2022]
Abstract
A hyperdynamic heart is defined as a left ventricular (LV) with an ejection fraction (EF) above the normal range. Is this favorable? We looked at the diastolic properties of subjects with a hyperdynamic heart and its impact on outcome. Consecutive echocardiography examinations during 5 years were evaluated by EF subgroups, including a hyperdynamic heart (EF >70%). All examinations with significant LV hypertrophy or valve disease were excluded. The study included 16,994 subjects. A total of 720 subjects (4.2%) had a hyperdynamic heart. Subjects with a hyperdynamic heart were older, more likely to be women, and more likely to have hypertension, diabetes, and obesity. A total of 20% of patients had a diagnosis of heart failure. This group had a higher heart rate, smaller ventricular size, and the highest relative wall thickness. All indexes of diastolic dysfunction were significantly more prevalent in the hyperdynamic group. This included a higher LV mass, larger left atrial volume, reduced relaxation (smaller mitral e'), longer deceleration time, and higher LV end-diastolic pressures (high mitral E/e' ratio) and peak tricuspid regurgitation gradient. Diastolic dysfunction, defined by an abnormal functional or structural parameter, was present in 78% of the subjects. Survival was significantly lower in the group with a hyperdynamic heart. The Cox regression analysis after adjustment demonstrated reduced survival during a median 9-year follow-up in the hyperdynamic group compared with those with a normal EF (hazard ratio 1.56, 95% confidence interval 1.38 to 1.76, p <0.001). In conclusion, subjects with a hyperdynamic systolic function have increased prevalence of diastolic dysfunction and reduced survival. A hyperdynamic heart is not a normally functioning heart.
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Affiliation(s)
- Israel Gotsman
- Heart Institute, Hadassah Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel.
| | - David Leibowitz
- Heart Institute, Hadassah Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Andre Keren
- Heart Institute, Hadassah Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Offer Amir
- Heart Institute, Hadassah Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Donna R Zwas
- Heart Institute, Hadassah Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
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18
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Szabo L, Raisi-Estabragh Z, Salih A, McCracken C, Ruiz Pujadas E, Gkontra P, Kiss M, Maurovich-Horvath P, Vago H, Merkely B, Lee AM, Lekadir K, Petersen SE. Clinician's guide to trustworthy and responsible artificial intelligence in cardiovascular imaging. Front Cardiovasc Med 2022; 9:1016032. [PMID: 36426221 PMCID: PMC9681217 DOI: 10.3389/fcvm.2022.1016032] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 10/11/2022] [Indexed: 12/01/2023] Open
Abstract
A growing number of artificial intelligence (AI)-based systems are being proposed and developed in cardiology, driven by the increasing need to deal with the vast amount of clinical and imaging data with the ultimate aim of advancing patient care, diagnosis and prognostication. However, there is a critical gap between the development and clinical deployment of AI tools. A key consideration for implementing AI tools into real-life clinical practice is their "trustworthiness" by end-users. Namely, we must ensure that AI systems can be trusted and adopted by all parties involved, including clinicians and patients. Here we provide a summary of the concepts involved in developing a "trustworthy AI system." We describe the main risks of AI applications and potential mitigation techniques for the wider application of these promising techniques in the context of cardiovascular imaging. Finally, we show why trustworthy AI concepts are important governing forces of AI development.
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Affiliation(s)
- Liliana Szabo
- William Harvey Research Institute, NIHR Barts Biomedical Research Centre, Queen Mary University of London, London, United Kingdom
- Barts Heart Centre, St Bartholomew's Hospital, Barts Health NHS Trust, London, United Kingdom
- Semmelweis University Heart and Vascular Center, Budapest, Hungary
| | - Zahra Raisi-Estabragh
- William Harvey Research Institute, NIHR Barts Biomedical Research Centre, Queen Mary University of London, London, United Kingdom
- Barts Heart Centre, St Bartholomew's Hospital, Barts Health NHS Trust, London, United Kingdom
| | - Ahmed Salih
- William Harvey Research Institute, NIHR Barts Biomedical Research Centre, Queen Mary University of London, London, United Kingdom
- Barts Heart Centre, St Bartholomew's Hospital, Barts Health NHS Trust, London, United Kingdom
| | - Celeste McCracken
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, National Institute for Health Research Oxford Biomedical Research Centre, Oxford University Hospitals NHS Foundation Trust, University of Oxford, Oxford, United Kingdom
| | - Esmeralda Ruiz Pujadas
- Departament de Matemàtiques i Informàtica, Artificial Intelligence in Medicine Lab (BCN-AIM), Universitat de Barcelona, Barcelona, Spain
| | - Polyxeni Gkontra
- Departament de Matemàtiques i Informàtica, Artificial Intelligence in Medicine Lab (BCN-AIM), Universitat de Barcelona, Barcelona, Spain
| | - Mate Kiss
- Siemens Healthcare Hungary, Budapest, Hungary
| | - Pal Maurovich-Horvath
- Department of Radiology, Medical Imaging Centre, Semmelweis University, Budapest, Hungary
| | - Hajnalka Vago
- Semmelweis University Heart and Vascular Center, Budapest, Hungary
| | - Bela Merkely
- Semmelweis University Heart and Vascular Center, Budapest, Hungary
| | - Aaron M. Lee
- William Harvey Research Institute, NIHR Barts Biomedical Research Centre, Queen Mary University of London, London, United Kingdom
- Barts Heart Centre, St Bartholomew's Hospital, Barts Health NHS Trust, London, United Kingdom
| | - Karim Lekadir
- Departament de Matemàtiques i Informàtica, Artificial Intelligence in Medicine Lab (BCN-AIM), Universitat de Barcelona, Barcelona, Spain
| | - Steffen E. Petersen
- William Harvey Research Institute, NIHR Barts Biomedical Research Centre, Queen Mary University of London, London, United Kingdom
- Barts Heart Centre, St Bartholomew's Hospital, Barts Health NHS Trust, London, United Kingdom
- Health Data Research UK, London, United Kingdom
- Alan Turing Institute, London, United Kingdom
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Bagate F, Coppens A, Masi P, de Prost N, Carteaux G, Razazi K, Mekontso Dessap A. Cardiac and vascular effects of low-dose steroids during the early phase of septic shock: An echocardiographic study. Front Cardiovasc Med 2022; 9:948231. [PMID: 36225952 PMCID: PMC9549363 DOI: 10.3389/fcvm.2022.948231] [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: 05/19/2022] [Accepted: 09/06/2022] [Indexed: 01/25/2023] Open
Abstract
BackgroundLow-dose steroids are known to increase arterial pressure during septic shock through restoration of vasopressor response to norepinephrine. However, their effects on cardiac performance and ventriculo-arterial coupling (VAC) have never been scrutinized during human septic shock. The aim of this study was to perform a comprehensive description of the cardiovascular effects of low-dose steroids using modern echocardiographic tools (including speckle tracking imaging).MethodsThis prospective study was conducted in the intensive care unit (ICU) of a university hospital in France. Consecutive adult patients admitted for septic shock and requiring low-dose steroid therapy were prospectively enrolled within 24 h of septic shock onset. We recorded hemodynamic and echocardiographic data to explore left ventricle (LV) contractility, loading conditions and VAC just before the initiation of low-dose steroids (50 mg intravenous hydrocortisone plus 50 μg enteral fludrocortisone) and 2–4 h after.ResultsFifty patients [65 (55–73) years; 33 men] were enrolled. Arterial pressure, heart rate, almost all LV afterload parameters, and most cardiac contractility parameters significantly improved after steroids. VAC improved with steroid therapy and less patients had uncoupled VAC (> 1.36) after (24%) than before (44%) treatment.ConclusionIn this comprehensive echocardiographic study, we confirmed an improvement of LV afterload after initiation of low-dose steroids. We also observed an increase in LV contractility with improved cardiovascular efficiency (less uncoupling with decreased VAC).
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Affiliation(s)
- François Bagate
- AP-HP, CHU Henri Mondor, DHU A-TVB, Service de Médecine Intensive Réanimation, Créteil, France
- Université Paris Est Créteil, Faculté de Médecine, Groupe de Recherche Clinique CARMAS, Créteil, France
- *Correspondence: François Bagate,
| | - Alexandre Coppens
- AP-HP, CHU Henri Mondor, DHU A-TVB, Service de Médecine Intensive Réanimation, Créteil, France
| | - Paul Masi
- AP-HP, CHU Henri Mondor, DHU A-TVB, Service de Médecine Intensive Réanimation, Créteil, France
- Université Paris Est Créteil, Faculté de Médecine, Groupe de Recherche Clinique CARMAS, Créteil, France
| | - Nicolas de Prost
- AP-HP, CHU Henri Mondor, DHU A-TVB, Service de Médecine Intensive Réanimation, Créteil, France
- Université Paris Est Créteil, Faculté de Médecine, Groupe de Recherche Clinique CARMAS, Créteil, France
- INSERM U955, Institut Mondor de Recherche Biomédicale, Créteil, France
| | - Guillaume Carteaux
- AP-HP, CHU Henri Mondor, DHU A-TVB, Service de Médecine Intensive Réanimation, Créteil, France
- Université Paris Est Créteil, Faculté de Médecine, Groupe de Recherche Clinique CARMAS, Créteil, France
- INSERM U955, Institut Mondor de Recherche Biomédicale, Créteil, France
| | - Keyvan Razazi
- AP-HP, CHU Henri Mondor, DHU A-TVB, Service de Médecine Intensive Réanimation, Créteil, France
- Université Paris Est Créteil, Faculté de Médecine, Groupe de Recherche Clinique CARMAS, Créteil, France
| | - Armand Mekontso Dessap
- AP-HP, CHU Henri Mondor, DHU A-TVB, Service de Médecine Intensive Réanimation, Créteil, France
- Université Paris Est Créteil, Faculté de Médecine, Groupe de Recherche Clinique CARMAS, Créteil, France
- INSERM U955, Institut Mondor de Recherche Biomédicale, Créteil, France
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20
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Gálvez LC, Redondo EA, Lorenzo CC, Fernández TL. Advanced Echocardiographic Techniques in Cardio-Oncology: the Role for Early Detection of Cardiotoxicity. Curr Cardiol Rep 2022; 24:1109-1116. [PMID: 35881319 DOI: 10.1007/s11886-022-01728-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/02/2022] [Indexed: 11/30/2022]
Abstract
PURPOSE OF REVIEW Implementation of advanced echocardiographic techniques in cardio-oncology is a growing need as they are the cornerstone of early detection of cancer therapy-related cardiovascular toxicity (CTR-CVT). RECENT FINDINGS Three-dimensional echocardiography and myocardial deformation techniques have shown more accuracy and reproducibility than classic 2D measurements in detecting cardiovascular adverse effects in patients undergoing anticancer therapies. Application of advanced echo techniques to daily monitoring of patients with cancer helps to identify those at risk of developing CTR-CVT during and after cancer treatment. Furthermore, advanced echo parameters improve early initiation of cardioprotective treatments in order to minimize cardiovascular events and cancer treatment interruption.
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Affiliation(s)
- Lucía Cobarro Gálvez
- Cardiology Department, La Paz University Hospital, Paseo de La Castellana, 261, 28046, Madrid, Spain.
| | - Emilio Arbas Redondo
- Cardiology Department, La Paz University Hospital, Paseo de La Castellana, 261, 28046, Madrid, Spain
| | | | - Teresa López Fernández
- Cardio-Oncology Unit, La Paz University Hospital, Paseo de La Castellana, Cardiology Department, 261, 28046, Madrid, Spain
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21
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Iskander J, Kelada P, Rashad L, Massoud D, Afdal P, Abdelmassih AF. Advanced Echocardiography Techniques: The Future Stethoscope of Systemic Diseases. Curr Probl Cardiol 2022; 47:100847. [PMID: 33992429 PMCID: PMC9046647 DOI: 10.1016/j.cpcardiol.2021.100847] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 01/11/2023]
Abstract
Cardiovascular disease (CVD) has been showing patterns of extensive rise in prevalence in the contemporary era, affecting the quality of life of millions of people and leading the causes of death worldwide. It has been a provocative challenge for modern medicine to diagnose CVD in its crib, owing to its etiological factors being attributed to a large array of systemic diseases, as well as its non-binary hideous nature that gradually leads to functional disability. Novel echocardiography techniques have enabled the cardiac ultrasound to provide a comprehensive analysis of the heart in an objective, feasible, time- and cost-effective manner. Speckle tracking echocardiography, contrast echocardiography, and 3D echocardiography have shown the highest potential for widespread use. The uses of novel modalities have been elaborately demonstrated in this study as a proof of concept that echocardiography has a place in routine general practice with supportive evidence being as recent as its role in the concurrent COVID-19 pandemic. Despite such evidence, many uses remain off-label and unexploited in practice. Generalization of echocardiography at the point of care can become a much-needed turning point in the clinical approach to case management. To actualize such aspirations, we recommend further prospective and interventional studies to examine the effect of implementing advanced techniques at the point of care on the decision-making process and evaluate their effectiveness in prevention of cardiovascular morbidities and mortalities.
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Affiliation(s)
- John Iskander
- Faculty of Medicine, Cairo University, Cairo, Egypt,Corresponding author: John Iskander, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Peter Kelada
- Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Lara Rashad
- Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Doaa Massoud
- Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Peter Afdal
- Residency program, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Antoine Fakhry Abdelmassih
- Pediatric Cardiology Unit, Department of Pediatrics, Kasr AlAiny Faculty of Medicine, Cairo University, Cairo, Egypt,Consultant of Pediatric Cardiology, Children Cancer Hospital of Egypt (57357 Hospital), Cairo, Egypt
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22
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Lashin H, Olusanya O, Smith A, Bhattacharyya S. Left ventricular ejection fraction correlation with stroke volume as estimated by Doppler echocardiography in cardiogenic shock: A retrospective observational study. J Cardiothorac Vasc Anesth 2022; 36:3511-3516. [DOI: 10.1053/j.jvca.2022.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 04/28/2022] [Accepted: 05/05/2022] [Indexed: 11/11/2022]
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23
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Chotalia M, Ali M, Hebballi R, Singh H, Parekh D, Bangash MN, Patel JM. Hyperdynamic Left Ventricular Ejection Fraction in ICU Patients With Sepsis. Crit Care Med 2022; 50:770-779. [PMID: 34605779 DOI: 10.1097/ccm.0000000000005315] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVES To evaluate the cause and prognosis of hyperdynamic left ventricular ejection fraction in critically ill patients with sepsis. DESIGN Retrospective, single-center cohort study. SETTING University Hospital ICU, Birmingham, United Kingdom. PATIENTS ICU patients who received a transthoracic echocardiogram within 7 days of sepsis between April 2016 and December 2019. INTERVENTION None. MEASUREMENTS AND MAIN RESULTS The 90-day mortality rates of normal (55-70%), depressed (< 55%), and hyperdynamic left ventricular ejection fraction (> 70%) were compared. Multivariate logistic regression analysis was performed to determine the association of left ventricular ejection fraction phenotypes with mortality and the association of clinical variables with left ventricular ejection fraction phenotypes. One thousand fourteen patients met inclusion criteria and were 62 years old (interquartile range, 47-72), with mostly respiratory infections (n = 557; 54.9%). Ninety-day mortality was 32.1% (n = 325). Patients with hyperdynamic left ventricular ejection fraction had a higher mortality than depressed and normal left ventricular ejection fraction cohorts (58.9% [n = 103] vs 34.0% [n = 55] vs 24.7% [n = 167]; p < 0.0001, respectively). After multivariate logistic regression, hyperdynamic left ventricular ejection fraction was independently associated with mortality (odds ratio, 3.90 [2.09-7.40]), whereas depressed left ventricular ejection fraction did not (odds ratio, 0.62 [0.28-1.37]). Systemic vascular resistance was inversely associated with hyperdynamic left ventricular ejection fraction (odds ratio, 0.79 [0.58-0.95]), and age, frailty, and ischemic heart disease were associated with depressed left ventricular ejection fraction. CONCLUSIONS Hyperdynamic left ventricular ejection fraction was associated with mortality in septic ICU patients and may reflect unmitigated vasoplegia from sepsis. Depressed left ventricular ejection fraction was not associated with mortality but was associated with cardiovascular disease.
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Affiliation(s)
- Minesh Chotalia
- Birmingham Acute Care Research Group, University of Birmingham, Birmingham, United Kingdom
- Department of Anaesthetics and Critical Care, Queen Elizabeth Hospital Birmingham, Birmingham, United Kingdom
| | - Muzzammil Ali
- Birmingham Acute Care Research Group, University of Birmingham, Birmingham, United Kingdom
| | - Ravi Hebballi
- Birmingham Acute Care Research Group, University of Birmingham, Birmingham, United Kingdom
| | - Harjot Singh
- Birmingham Acute Care Research Group, University of Birmingham, Birmingham, United Kingdom
| | - Dhruv Parekh
- Birmingham Acute Care Research Group, University of Birmingham, Birmingham, United Kingdom
- Department of Anaesthetics and Critical Care, Queen Elizabeth Hospital Birmingham, Birmingham, United Kingdom
| | - Mansoor N Bangash
- Birmingham Acute Care Research Group, University of Birmingham, Birmingham, United Kingdom
- Department of Anaesthetics and Critical Care, Queen Elizabeth Hospital Birmingham, Birmingham, United Kingdom
| | - Jaimin M Patel
- Birmingham Acute Care Research Group, University of Birmingham, Birmingham, United Kingdom
- Department of Anaesthetics and Critical Care, Queen Elizabeth Hospital Birmingham, Birmingham, United Kingdom
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Lorenzen U, Grünewald M. [Targeted hemodynamic monitoring in the operating theatre: what for and by what means?]. Anasthesiol Intensivmed Notfallmed Schmerzther 2022; 57:246-262. [PMID: 35451032 DOI: 10.1055/a-1472-4285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Goal directed hemodynamic monitoring and the balance in goal directed therapy between adequate fluid/volume therapy and the application of vasoactive or inotropic drugs are the basic elements of modern perioperative therapy.Surgical procedures should be accompanied by as few side effects and complications as possible. Nevertheless, the number of postoperative complications remains surprisingly high, despite of the modern surgical procedures. Anticipation of potential complications in the perioperative period and their rapid treatment build a core competence of anesthesiological action. Thus, it is clear that anesthesia plays a central role in this balancing act.This article aims to provide an overview of the application of the currently available perioperative goal directed hemodynamic monitoring. The current possibilities are discussed by using a case example and an outlook on the future of hemodynamic monitoring is given.
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Affiliation(s)
- Ulf Lorenzen
- Klinik für Anästhesiologie und Operative Intensivmedizin, Universitätsklinikum Schleswig-Holstein, Campus Kiel, Kiel
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25
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Arrestier R, Gendreau S, Mokrani D, Bastard JP, Fellahi S, Bagate F, Masi P, d’Humières T, Razazi K, Carteaux G, De Prost N, Audard V, Mekontso-Dessap A. Acute Kidney Injury in Critically-Ill COVID-19 Patients. J Clin Med 2022; 11:jcm11072029. [PMID: 35407639 PMCID: PMC8999255 DOI: 10.3390/jcm11072029] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/25/2022] [Accepted: 03/31/2022] [Indexed: 02/04/2023] Open
Abstract
Purpose: Acute kidney injury (AKI) is common in patients with COVID-19, however, its mechanism is still controversial, particularly in ICU settings. Urinary proteinuria profile could be a non-invasive tool of interest to scrutinize the pathophysiological process underlying AKI in COVID-19 patients. Material and Methods: We conducted a retrospective study between March 2020 and April 2020. All patients with laboratory-confirmed COVID-19 and without end-stage kidney disease requiring renal replacement therapy before ICU admission were included. Our objectives were to assess the incidence and risk factors for AKI and to describe its clinical and biological characteristics, particularly its urinary protein profile. Results: Seventy patients were included; 87% needed mechanical ventilation and 61% needed vasopressor during their ICU stay; 64.3% of patients developed AKI and half of them needed dialysis. Total and tubular proteinuria on day 1 were higher in patients with AKI, whereas glomerular proteinuria was similar in both groups. The main risk factor for AKI was shock at admission (OR = 5.47 (1.74−17.2), p < 0.01). Mortality on day 28 was higher in AKI (23/45, 51.1%) than in no-AKI patients (1/25, 4%), p < 0.001. Risk factors for 28-days mortality were AKI with need for renal replacement therapy, non-renal SOFA score and history of congestive heart failure. Conclusions: AKI is common in COVID-19 patients hospitalized in ICU; it seems to be related to tubular lesions rather than glomerular injury and is related to shock at ICU admission.
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Affiliation(s)
- Romain Arrestier
- Service de Médecine Intensive Réanimation, Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires Henri Mondor, 94010 Creteil, France; (S.G.); (D.M.); (F.B.); (P.M.); (K.R.); (G.C.); (N.D.P.); (A.M.-D.)
- GRC CARMAS, Faculté de Médecine de Créteil, Université Paris Est Créteil, 94010 Creteil, France
- Correspondence: ; Tel.: +33-01-4981-2399; Fax: +33-01-4981-2542
| | - Ségolène Gendreau
- Service de Médecine Intensive Réanimation, Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires Henri Mondor, 94010 Creteil, France; (S.G.); (D.M.); (F.B.); (P.M.); (K.R.); (G.C.); (N.D.P.); (A.M.-D.)
- GRC CARMAS, Faculté de Médecine de Créteil, Université Paris Est Créteil, 94010 Creteil, France
| | - David Mokrani
- Service de Médecine Intensive Réanimation, Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires Henri Mondor, 94010 Creteil, France; (S.G.); (D.M.); (F.B.); (P.M.); (K.R.); (G.C.); (N.D.P.); (A.M.-D.)
| | - Jean-Philippe Bastard
- Département de Biochimie-Pharmacologie-Biologie Moléculaire-Génétique Médicale, Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires Henri Mondor, 94010 Creteil, France; (J.-P.B.); (S.F.)
- Institut National de la Santé et de la Recherche Médicale (INSERM) U955, Institut Mondor de Recherche Biomédicale (IMRB), Université Paris Est Créteil, 94010 Creteil, France;
| | - Soraya Fellahi
- Département de Biochimie-Pharmacologie-Biologie Moléculaire-Génétique Médicale, Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires Henri Mondor, 94010 Creteil, France; (J.-P.B.); (S.F.)
- Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-Métabolisme et Nutrition (ICAN), Institut National de la Santé et de la Recherche Médicale (INSERM) UMR S938, Sorbonne Université, 75006 Paris, France
| | - François Bagate
- Service de Médecine Intensive Réanimation, Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires Henri Mondor, 94010 Creteil, France; (S.G.); (D.M.); (F.B.); (P.M.); (K.R.); (G.C.); (N.D.P.); (A.M.-D.)
- GRC CARMAS, Faculté de Médecine de Créteil, Université Paris Est Créteil, 94010 Creteil, France
| | - Paul Masi
- Service de Médecine Intensive Réanimation, Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires Henri Mondor, 94010 Creteil, France; (S.G.); (D.M.); (F.B.); (P.M.); (K.R.); (G.C.); (N.D.P.); (A.M.-D.)
- GRC CARMAS, Faculté de Médecine de Créteil, Université Paris Est Créteil, 94010 Creteil, France
| | - Thomas d’Humières
- Service de Physiologie Explorations Fonctionnelles, Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires Henri Mondor, 94010 Creteil, France
| | - Keyvan Razazi
- Service de Médecine Intensive Réanimation, Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires Henri Mondor, 94010 Creteil, France; (S.G.); (D.M.); (F.B.); (P.M.); (K.R.); (G.C.); (N.D.P.); (A.M.-D.)
- GRC CARMAS, Faculté de Médecine de Créteil, Université Paris Est Créteil, 94010 Creteil, France
| | - Guillaume Carteaux
- Service de Médecine Intensive Réanimation, Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires Henri Mondor, 94010 Creteil, France; (S.G.); (D.M.); (F.B.); (P.M.); (K.R.); (G.C.); (N.D.P.); (A.M.-D.)
- GRC CARMAS, Faculté de Médecine de Créteil, Université Paris Est Créteil, 94010 Creteil, France
- Institut National de la Santé et de la Recherche Médicale (INSERM) U955, Institut Mondor de Recherche Biomédicale (IMRB), Université Paris Est Créteil, 94010 Creteil, France;
| | - Nicolas De Prost
- Service de Médecine Intensive Réanimation, Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires Henri Mondor, 94010 Creteil, France; (S.G.); (D.M.); (F.B.); (P.M.); (K.R.); (G.C.); (N.D.P.); (A.M.-D.)
- GRC CARMAS, Faculté de Médecine de Créteil, Université Paris Est Créteil, 94010 Creteil, France
| | - Vincent Audard
- Institut National de la Santé et de la Recherche Médicale (INSERM) U955, Institut Mondor de Recherche Biomédicale (IMRB), Université Paris Est Créteil, 94010 Creteil, France;
- Service de Néphrologie et Transplantation, Centre de Référence Maladie Rare Syndrome Néphrotique Idiopathique, Assistance Publique-Hôpitaux de Paris (AP-HP), Fédération Hospitalo-Universitaire Innovative Therapy for Immune Disorders, Hôpitaux Universitaires Henri Mondor, 94010 Creteil, France
| | - Armand Mekontso-Dessap
- Service de Médecine Intensive Réanimation, Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires Henri Mondor, 94010 Creteil, France; (S.G.); (D.M.); (F.B.); (P.M.); (K.R.); (G.C.); (N.D.P.); (A.M.-D.)
- GRC CARMAS, Faculté de Médecine de Créteil, Université Paris Est Créteil, 94010 Creteil, France
- Institut National de la Santé et de la Recherche Médicale (INSERM) U955, Institut Mondor de Recherche Biomédicale (IMRB), Université Paris Est Créteil, 94010 Creteil, France;
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Blaivas M, Blaivas L. Machine learning algorithm using publicly available echo database for simplified “visual estimation” of left ventricular ejection fraction. World J Exp Med 2022; 12:16-25. [PMID: 35433318 PMCID: PMC8968469 DOI: 10.5493/wjem.v12.i2.16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 12/14/2021] [Accepted: 03/07/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Left ventricular ejection fraction calculation automation typically requires complex algorithms and is dependent of optimal visualization and tracing of endocardial borders. This significantly limits usability in bedside clinical applications, where ultrasound automation is needed most.
AIM To create a simple deep learning (DL) regression-type algorithm to visually estimate left ventricular (LV) ejection fraction (EF) from a public database of actual patient echo examinations and compare results to echocardiography laboratory EF calculations.
METHODS A simple DL architecture previously proven to perform well on ultrasound image analysis, VGG16, was utilized as a base architecture running within a long short term memory algorithm for sequential image (video) analysis. After obtaining permission to use the Stanford EchoNet-Dynamic database, researchers randomly removed approximately 15% of the approximately 10036 echo apical 4-chamber videos for later performance testing. All database echo examinations were read as part of comprehensive echocardiography study performance and were coupled with EF, end systolic and diastolic volumes, key frames and coordinates for LV endocardial tracing in csv file. To better reflect point-of-care ultrasound (POCUS) clinical settings and time pressure, the algorithm was trained on echo video correlated with calculated ejection fraction without incorporating additional volume, measurement and coordinate data. Seventy percent of the original data was used for algorithm training and 15% for validation during training. The previously randomly separated 15% (1263 echo videos) was used for algorithm performance testing after training completion. Given the inherent variability of echo EF measurement and field standards for evaluating algorithm accuracy, mean absolute error (MAE) and root mean square error (RMSE) calculations were made on algorithm EF results compared to Echo Lab calculated EF. Bland-Atlman calculation was also performed. MAE for skilled echocardiographers has been established to range from 4% to 5%.
RESULTS The DL algorithm visually estimated EF had a MAE of 8.08% (95%CI 7.60 to 8.55) suggesting good performance compared to highly skill humans. The RMSE was 11.98 and correlation of 0.348.
CONCLUSION This experimental simplified DL algorithm showed promise and proved reasonably accurate at visually estimating LV EF from short real time echo video clips. Less burdensome than complex DL approaches used for EF calculation, such an approach may be more optimal for POCUS settings once improved upon by future research and development.
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Affiliation(s)
- Michael Blaivas
- Department of Medicine, University of South Carolina School of Medicine, Roswell, GA 30076, United States
| | - Laura Blaivas
- Department of Environmental Science, Michigan State University, Roswell, Georgia 30076, United States
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Poteh NA, Singh AC, Starr Seal R, Khalil PA. Evaluation of COVID-19-Associated Myocarditis Via Point-of-Care Ultrasound in a Pediatric Patient. Pediatr Emerg Care 2022; 38:94-96. [PMID: 34225328 PMCID: PMC8808757 DOI: 10.1097/pec.0000000000002509] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
ABSTRACT Coronavirus disease 2019 (COVID-19)-associated myocarditis has been reported from the onset of the pandemic. The presumed etiology is direct damage to the myocardium from severe acute respiratory syndrome coronavirus 2. Common findings include electrocardiogram abnormalities, elevated cardiac markers, and diminished cardiac function. This can lead to heart failure and cardiogenic shock with resultant poor perfusion. Thus, myocarditis has been recognized as a cause of death in patients with COVID-19. Unfortunately, it is difficult to predict the prevalence of myocarditis in these patients given the relative novelty of the pandemic and the lack of available data. Point-of-care ultrasound (POCUS) has been shown to be a useful modality to investigate lung pathology in patients with COVID-19. Bedside cardiac POCUS can also be used to investigate cardiac pathology. This case describes a pediatric patient with COVID-19 who had evidence of myocarditis on POCUS in the pediatric emergency department.
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Srinivasaiah B, Muthuchellappan R, Ganne Sesha UR. A prospective observational study of electrocardiographic and echocardiographic changes in traumatic brain injury - effect of surgical decompression. Br J Neurosurg 2022:1-6. [PMID: 35001787 DOI: 10.1080/02688697.2021.2024497] [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: 07/07/2020] [Revised: 01/13/2021] [Accepted: 12/27/2021] [Indexed: 11/02/2022]
Abstract
BACKGROUND Traumatic brain injury (TBI) causes significant changes in myocardial function, which is represented by ECG and echocardiographic changes. We intended to study the effect of surgical decompression on these changes. MATERIALS AND METHODS We recruited adult TBI patients undergoing surgery within 48 h of injury. Preoperatively, the patient's demographic and clinical details were recorded. ECG and TTE were performed before surgery and 24 h later (first postoperative day [POD1]). ECG was analyzed for heart rate, PR, QRS, and QTc intervals, morphologic end-repolarization abnormalities (MERA), and ST-segment and T wave changes. TTE data included left ventricular ejection fraction (LVEF) and regional wall motion abnormalities (RWMA). Glasgow coma scale (GCS) at discharge was recorded. ECG and TTE changes before and after surgery were compared, and its association with discharge GCS was analyzed. Preoperative predictors of LV dysfunction were analyzed. RESULTS Of the 110 patients recruited, common ECG changes were prolonged QTc interval (42%) and MERA (47%). TTE showed poor LVEF (<50%) in 10% and RWMA in 10.8% of patients. Following surgery, both ECG and TTE changes improved. Preoperative LVEF <50% and/or RWMA were associated with a lower GCS score at discharge. Preoperative poor GCS motor score and prolonged QTc interval were independent predictors of LV dysfunction. CONCLUSIONS Poor LV function was associated with poor admission GCS and prolonged QTc interval. Patients with reduced LV function had lower GCS at discharge.
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Affiliation(s)
- Bharath Srinivasaiah
- Department of Neuroanaesthesia and Neurocritical Care, National Institute of Mental Health and Neurosciences, Bangalore, India
| | - Radhakrishnan Muthuchellappan
- Department of Neuroanaesthesia and Neurocritical Care, National Institute of Mental Health and Neurosciences, Bangalore, India
| | - Umamaheswara Rao Ganne Sesha
- Department of Neuroanaesthesia and Neurocritical Care, National Institute of Mental Health and Neurosciences, Bangalore, India
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Itelman E, Vatury O, Kuperstein R, Ben-Zekry S, Fefer P, Barbash I, Klempfner R, Segev A, Feinberg M, Guetta V, Maor E. The Association of Moderate Aortic Stenosis with Poor Survival is Modified by Age and Left Ventricular Function. J Am Soc Echocardiogr 2021; 35:378-386.e3. [PMID: 34915134 DOI: 10.1016/j.echo.2021.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 12/01/2021] [Accepted: 12/01/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND Data on the independent association of moderate aortic stenosis (AS) with excess mortality, even when it does not progress to severe AS, is limited. OBJECTIVE To evaluate the association of moderate AS with poor survival and to identify clinically important modifiers of that association. METHODS Consecutive patients who underwent echocardiographic evaluation between 2007 and 2019. All-cause mortality and cancer data were available for all patients from national registries. Cox regression survival models were applied with censoring of patients who developed metastatic cancer, developed > moderate AS, or underwent aortic valve intervention during follow-up. RESULTS The study population included 92,622 patients. There were 2,202 (2%) patients with moderate AS, with a median age of 79 (IQR 70-85), of whom 1,254(57%) were men. During follow-up of 5 (IQR 3-8) years, 19,712 (21%) patients died. The cumulative probability of death at 5 years was higher for moderate AS patients (46% vs. 18% respectively, p Log-rank < .001). Propensity score matching analysis (N=2,896) that included clinical, laboratory, and echocardiographic predictors of poor survival demonstrated that compared with ≤ mild AS, patients with moderate AS were 17% more likely to die (95% CI 1.04-1.30, p = 0.007). Moreover, the model showed that the moderate AS associated risk was ejection fraction (EF) and age-dependent with a more pronounced association among non-octogenarian patients and patients with reduced EF (p for interaction .001 and .016 respectively). CONCLUSION Moderate AS is independently associated with excess mortality, even when it does not progress to severe AS. The associated risk is more pronounced among patients with reduced EF and patients younger than 80 years.
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Affiliation(s)
- Edward Itelman
- Chaim Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ori Vatury
- Chaim Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Raphael Kuperstein
- Chaim Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Sagit Ben-Zekry
- Chaim Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Paul Fefer
- Chaim Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Israel Barbash
- Chaim Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Robert Klempfner
- Chaim Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Amit Segev
- Chaim Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Micha Feinberg
- Chaim Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Victor Guetta
- Chaim Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Elad Maor
- Chaim Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.
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[Intraoperative transesophageal echocardiography for emergency diagnostics in noncardiac surgery patients]. Anaesthesist 2021; 71:65-82. [PMID: 34821955 DOI: 10.1007/s00101-021-01034-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/09/2021] [Indexed: 10/19/2022]
Abstract
Due to the development of compact and mobile devices, transesophageal echocardiography (TEE) is now being used as one important point-of-care diagnostic method in emergency rooms, intensive care units and operating rooms. In the first part of this advanced training series, general aspects of the examination method and the procedure as well as indications and contraindications were outlined. In addition, an overview of application areas beyond cardiac surgery in which TEE can be used to monitor the patient or to assist with the operative procedure was provided. In the second part, the main findings during intraoperative TEE in the event of hemodynamic instability or unexplained hypoxemia are presented. A shortened emergency examination as proposed by Reeves et al. is outlined. The article concludes with an outlook on semiautomatic interpretation software and computer-aided image acquisition.
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Abstract
ABSTRACT A growing number of adolescents are being diagnosed with acute myocarditis following mRNA COVID-19 vaccinations. This case describes an adolescent who presented to the emergency department with chest pain and tachycardia following the Pfizer-BioNTech COVID-19 vaccination. Point-of-care ultrasound was performed prior to the return of laboratory studies and revealed depressed left ventricular systolic function. Point-of-care ultrasound may be a tool used to rapidly diagnose or risk stratify patients with potential post-COVID-19 vaccine myocarditis.
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Affiliation(s)
- Timothy Visclosky
- From the Department of Emergency Medicine, University of Michigan, Ann Arbor, MI
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Bahl A, Johnson S, Altwail M, Brackney A, Xiao J, Price J, Shotkin P, Chen NW. Left Ventricular Ejection Fraction Assessment by Emergency Physician-Performed Bedside Echocardiography: A Prospective Comparative Evaluation of Multiple Modalities. J Emerg Med 2021; 61:711-719. [PMID: 34654586 DOI: 10.1016/j.jemermed.2021.09.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 07/30/2021] [Accepted: 09/11/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND Although there is some support for visual estimation (VE) as an accurate method to estimate left ventricular ejection fraction (LVEF), it is also scrutinized for its subjectivity. Therefore, more objective assessments, such as fractional shortening (FS) or e-point septal separation (EPSS), may be useful in estimating LVEF among patients in the emergency department (ED). OBJECTIVE Our aim was to compare the real-world accuracy of VE, FS, and EPSS using a sample of point-of-care cardiac ultrasound transthoracic echocardiography (POC-TTE) images acquired by emergency physicians (EPs) with the gold standard of Simpson's method of discs, as measured by comprehensive cardiology-performed echocardiography. METHODS We conducted a single-site prospective observational study comparing VE, FS, and EPSS to assess LVEF. Adult patients in the ED receiving both POC-TTE and comprehensive cardiology TTE were included. EPs acquired POC-TTE images and videos that were then interpreted by 2 blinded EPs who were fellowship-trained in emergency ultrasound. EPs estimated LVEF using VE, FS, and EPSS. The primary outcome was accuracy. RESULTS Between April and May 2018, 125 patients were enrolled and 113 were included in the final analysis. EP1 and EP2 had a κ of 0.94 (95% confidence interval [CI] 0.87-1.00) and 0.97 (95% CI 0.91-1.00), respectively, for VE compared with gold standard, a κ of 0.40 (95% CI 0.23-0.57) and 0.38 (95% CI 0.18-0.57), respectively, for EPSS compared with gold standard, and a κ of 0.70 (95% CI 0.54-0.85) and 0.66 (95% CI 0.50-0.81), respectively, for FS compared with gold standard. Sensitivity of severe dysfunction was moderate to high in VE (EP1 85% and EP2 93%), poor to moderate in FS (EP1 73% and EP2 50%), and poor in EPSS (EP1 11% and EP2 18%). CONCLUSIONS Using a real-world sample of POC-TTE images, the quantitative measurements of EPSS and FS demonstrated poor accuracy in estimating LVEF, even among experienced sonographers. These methods should not be used to determine cardiac function in the ED. VE by experienced physicians demonstrated reliable accuracy for estimating LVEF compared with the gold standard of cardiology-performed TTE.
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Affiliation(s)
- Amit Bahl
- Department of Emergency Medicine, Beaumont Hospital, Royal Oak, Michigan.
| | - Steven Johnson
- Department of Emergency Medicine, Beaumont Hospital, Royal Oak, Michigan
| | - Mina Altwail
- Department of Emergency Medicine, Beaumont Hospital, Royal Oak, Michigan
| | - Abigail Brackney
- Department of Emergency Medicine, Beaumont Hospital, Royal Oak, Michigan
| | - Jane Xiao
- Department of Emergency Medicine, Beaumont Hospital, Royal Oak, Michigan
| | - Jacob Price
- Department of Emergency Medicine, Beaumont Hospital, Royal Oak, Michigan
| | - Paul Shotkin
- Department of Emergency Medicine, Beaumont Hospital, Royal Oak, Michigan
| | - Nai-Wei Chen
- Beaumont Research Institute, Beaumont Hospital, Royal Oak, Michigan
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Palermi S, Serio A, Vecchiato M, Sirico F, Gambardella F, Ricci F, Iodice F, Radmilovic J, Russo V, D'Andrea A. Potential role of an athlete-focused echocardiogram in sports eligibility. World J Cardiol 2021; 13:271-297. [PMID: 34589165 PMCID: PMC8436685 DOI: 10.4330/wjc.v13.i8.271] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 04/27/2021] [Accepted: 07/14/2021] [Indexed: 02/06/2023] Open
Abstract
Sudden cardiac death (SCD) of an athlete is a rare but tragic event and sport activity might play a trigger role in athletes with underlying structural or electrical heart diseases. Preparticipation screenings (PPs) have been conceived for the potential to prevent SCD in young athletes by early identification of cardiac diseases. The European Society of Cardiology protocol for PPs includes history collection, physical examination and baseline electrocardiogram, while further examinations are reserved to individuals with abnormalities at first-line evaluation. Nevertheless, transthoracic echocardiography has been hypothesized to have a primary role in the PPs. This review aims to describe how to approach an athlete-focused echocardiogram, highlighting what is crucial to focus on for the different diseases (cardiomyopathies, valvulopathies, congenital heart disease, myocarditis and pericarditis) and when is needed to pay attention to overlap diagnostic zone ("grey zone") with the athlete's heart. Once properly tested, focused echocardiography by sports medicine physicians may become standard practice in larger screening practices, potentially available during first-line evaluation.
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Affiliation(s)
- Stefano Palermi
- Public Health Department, University of Naples Federico II, Naples 80131, Italy
| | - Alessandro Serio
- Public Health Department, University of Naples Federico II, Naples 80131, Italy
| | - Marco Vecchiato
- Sport and Exercise Medicine Division, Department of Medicine, University Hospital of Padova, Padova 35128, Italy
| | - Felice Sirico
- Public Health Department, University of Naples Federico II, Naples 80131, Italy
| | | | - Fabrizio Ricci
- Department of Neuroscience, Imaging and Clinical Sciences, "G. d'Annunzio" University of Chieti-Pescara, Chieti 66100, Italy
| | - Franco Iodice
- Unit of Cardiology, Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", Monaldi Hospital, Naples 80131, Italy
| | - Juri Radmilovic
- Unit of Cardiology and Intensive Coronary Care, "Umberto I" Hospital, Nocera Inferiore 84014, Italy
| | - Vincenzo Russo
- Unit of Cardiology, Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", Monaldi Hospital, Naples 80131, Italy
| | - Antonello D'Andrea
- Unit of Cardiology, Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", Monaldi Hospital, Naples 80131, Italy.
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Labus J, Winata J, Schmidt T, Nicolai J, Uhlig C, Sveric K, Alexiou K, Scholz M, Fassl J. Perioperative Two-Dimensional Left Ventricular Global Longitudinal Strain in Coronary Artery Bypass Surgery: A Prospective Observational Pilot Study. J Cardiothorac Vasc Anesth 2021; 36:166-174. [PMID: 34526240 DOI: 10.1053/j.jvca.2021.08.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 07/30/2021] [Accepted: 08/01/2021] [Indexed: 12/24/2022]
Abstract
OBJECTIVES There are limited data on perioperative left ventricular strain. The authors aimed to describe the entire perioperative course of two-dimensional left ventricular global longitudinal strain in patients undergoing coronary artery bypass graft (CABG) surgery and compare to common parameters of LV function assessment. DESIGN Prospective observational study. SETTING Single university hospital. PARTICIPANTS Forty patients scheduled for isolated on-pump CABG surgery with preserved left and right ventricular function with an unremarkable, complication-free perioperative course. INTERVENTIONS Two-dimensional strain analysis and standard echocardiographic assessment of left ventricular function were performed pre- (T1) and postoperatively (T4) by transthoracic echocardiography (TTE) and intraoperatively pre- (T2) and poststernotomy (T3) by transesophageal echocardiography (TEE). Echocardiography was performed under stable hemodynamics and predefined fluid management, in sinus rhythm without any vasoactive support. MEASUREMENTS AND MAIN RESULTS Analysis of two-dimensional LV global longitudinal strain (2D-LV GLS) was performed using Tomtec 2D Cardiac Performance Analysis software. Philips QLAB 10.8 was used to analyze left ventricular ejection fraction (LV EF) and tissue velocity of the lateral mitral annulus (LV S ́). There were no significant differences (median with interquartile range [IQR]) after induction of anesthesia in values of LV EF and 2D-LV GLS (T1 v T2; 59% [IQR, 52 to 64] v 56% [IQR, 51.75 to 63] and -15.2 [IQR, -18.05 to -13.08] v -15.6 [IQR, -17.65 to -13.88]; both not significant [ns]), while LV S´ declined (T1 v T2, 7 cm/s [IQR, 5.25 to 8] v 5.25 cm/s [IQR, 4.6 to 6.83]; p < 0.001). Bland-Altman analysis for this comparison of 2D-LV GLS (T1 v T2) showed that bias was not significant between both techniques; however, there were limits of agreement. After sternotomy (T2 v T3) neither LV EF nor 2D-LV GLS or LV S´ declined. 2D-LV GLS deteriorated significantly after CABG (T1 v T4; -15.2 [IQR, -18.05 to -13.08] v -11.3 [IQR, -15.8 to -9.78]; p < 0.001). In contrast, LV EF and LV S´ did not change significantly in the perioperative interval (T1 v T4; 59% [IQR, 52 to 64] v 56% [IQR, 51.5 to 64.25] and 7 cm/s [IQR, 5.25 to 8] v 7 cm/s [IQR, 6 to 8]; both ns). CONCLUSION Values of 2D-LV GLS did not differ in awake, spontaneously breathing patients assessed by TTE and in anesthetized and ventilated patients with stable hemodynamics measured by TEE. 2D-LV GLS did not change after sternotomy; however, it declined significantly after on-pump CABG, while LV EF and LV S´ remained unchanged.
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Affiliation(s)
- Jakob Labus
- Department of Cardiac Anesthesiology, Heart Center Dresden, University Hospital, Dresden, Germany; Department of Anesthesiology and Intensive Care Medicine, University Hospital and Medical Faculty, Cologne University, Cologne, Germany
| | - Johan Winata
- Department of Cardiac Anesthesiology, Heart Center Dresden, University Hospital, Dresden, Germany
| | - Torsten Schmidt
- Department of Cardiac Anesthesiology, Heart Center Dresden, University Hospital, Dresden, Germany
| | - Joachim Nicolai
- Department of Cardiac Anesthesiology, Heart Center Dresden, University Hospital, Dresden, Germany
| | - Christopher Uhlig
- Department of Cardiac Anesthesiology, Heart Center Dresden, University Hospital, Dresden, Germany
| | - Kunislav Sveric
- Department of Cardiology and Internal Medicine, Heart Center Dresden, University Hospital, Dresden, Germany
| | - Konstantin Alexiou
- Department of Heart Surgery, Heart Center Dresden, University Hospital, Dresden, Germany
| | - Markus Scholz
- Institute for Medical Informatics, Statistics and Epidemiology, Medical Faculty, Leipzig University, Leipzig, Germany
| | - Jens Fassl
- Department of Cardiac Anesthesiology, Heart Center Dresden, University Hospital, Dresden, Germany.
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Abazid RM, Abohamr SI, Smettei OA, Qasem MS, Suresh AR, Al Harbi MF, Aljaber AN, Al Motairy AA, Albiela DE, Almutairi BM, Sakr H. Visual versus fully automated assessment of left ventricular ejection fraction. Avicenna J Med 2021; 8:41-45. [PMID: 29682476 PMCID: PMC5898181 DOI: 10.4103/ajm.ajm_209_17] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Introduction The aim of this study is to compare three different echocardiographic methods commonly used in the assessment of left ventricle (LV) ejection fraction (EF). Methods All patients underwent full echocardiography including LVEF assessed using M-mode, automated EF (Auto-EF), and visual estimation by two readers. Results We enrolled 268 patients. Auto-EF measurement was feasible in 240 (89.5%) patients. The averaged LVEF was (52% ± 12) with the visual assessment, (51% ± 11) with Auto-EF and (57% ± 13) with M-mode. Using Bland-Altman analysis, we found that the difference between the mean visual and the Auto-EF was not significant (-0.3% [-0.5803-0.0053], P = 0.054). However, the mean EF was significantly different when comparing visual versus M-mode and Auto-EF versus M-mode with the mean differences: (-2.4365 [-2.9946--1.8783], P < 0.0001) and (-2.1490 [-2.7348--1.5631], P < 0.0001) respectively. Inter-observer variability analysis of the visual EF assessment between the two readers showed that intraclass correlation coefficient was 0.953, (95% confidence interval: 0.939-0.965, P < 0.0001), with excellent correlation between the two readers: R = 0.911, P < 0.0001). Conclusion The two-dimensional echocardiographic methods using Biplane Auto-EF or visual assessment were significantly comparable, whereas M-mode results in an overestimation of the LVEF.
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Affiliation(s)
- Rami Mahmood Abazid
- Department of Cardiology, Cardiac Imaging, Prince Sultan Cardiac Center Qassim, King Fahad Specialist Hospital, Buraydah, Al-Qassim, Saudi Arabia
| | - Samah I Abohamr
- Department of Cardiology, Tanta University Hospital, Tanta, Egypt.,Department of Cardiology, King Saud Medical City, Riyadh, Saudi Arabia
| | - Osama A Smettei
- Department of Cardiology, Cardiac Imaging, Prince Sultan Cardiac Center Qassim, King Fahad Specialist Hospital, Buraydah, Al-Qassim, Saudi Arabia
| | - Mohammed S Qasem
- Department of Cardiology, Cardiac Imaging, Prince Sultan Cardiac Center Qassim, King Fahad Specialist Hospital, Buraydah, Al-Qassim, Saudi Arabia
| | - Annie R Suresh
- Department of Cardiology, Cardiac Imaging, Prince Sultan Cardiac Center Qassim, King Fahad Specialist Hospital, Buraydah, Al-Qassim, Saudi Arabia
| | - Mohammad F Al Harbi
- Qassim College of Medicine, Qassim University, Buraydah, Al-Qassim, Saudi Arabia
| | | | - Athary A Al Motairy
- Qassim College of Medicine, Qassim University, Buraydah, Al-Qassim, Saudi Arabia
| | - Diana E Albiela
- Department of Cardiology, Cardiac Imaging, Prince Sultan Cardiac Center Qassim, King Fahad Specialist Hospital, Buraydah, Al-Qassim, Saudi Arabia
| | | | - Haitham Sakr
- Department of Cardiology, King Saud Medical City, Riyadh, Saudi Arabia
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Champagne P, Girard F, Cyr V, Romanelli G, Ruel M, Todorov A, Robitaille A. The impact of a perceptual learning module on novices' ability to visually estimate left ventricular ejection fraction by transesophageal echocardiography: a randomized controlled study. Can J Anaesth 2021; 68:1527-1535. [PMID: 34319575 DOI: 10.1007/s12630-021-02066-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 06/01/2021] [Accepted: 06/10/2021] [Indexed: 11/29/2022] Open
Abstract
PURPOSE Echocardiography is a difficult tool to master. Competency requires the supervised interpretation of hundreds of exams. Perceptual learning modules (PLMs) are novel learning tools that aim to speed up this learning process by enabling learners to go online and interpret numerous clinical images, followed systematically by expert feedback. We developed and tested a PLM aimed at improving novices' ability to quickly visually estimate left ventricular ejection fraction (LVEF) on transesophageal echocardiography images, a critical skill in acute care. We hypothesized that using the PLM would improve the accuracy and the speed of learners' estimations. METHODS Learners without echocardiography experience were randomly assigned to a group that used the 96-case PLM (n = 26) or a control group (n = 26) that did not. Both groups took a pre-test and an immediate post-test that measured the accuracy of their visual estimations during a first session. At six months, participants also completed a delayed post-test. RESULTS In the immediate post-test, the PLM group showed significantly better accuracy than the control group (median absolute estimation error 6.1 vs 9.0; difference 95% CI, 1.0 to 4.6; P < 0.001). Nevertheless, at six months, estimation errors were similar in both groups (median absolute estimation error 10.0 vs 10.0; difference 95% CI, -1.3 to 2.1; P = 0.27). CONCLUSIONS Participation in a short online PLM significantly improved novices' short-term ability to accurately estimate LVEF visually, compared with controls. The effect was not sustained at six months. TRIAL REGISTRATION www.clinicaltrials.gov (NCT03245567); registered 7 August 2017.
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Affiliation(s)
- Philippe Champagne
- Department of Anesthesiology, Centre Hospitalier de l'Université de Montréal, 1051 rue Sanguinet, Pavillon D, porte D04.5028, Montreal, QC, H2X 3E4, Canada
| | - François Girard
- Department of Anesthesiology, Centre Hospitalier de l'Université de Montréal, 1051 rue Sanguinet, Pavillon D, porte D04.5028, Montreal, QC, H2X 3E4, Canada
| | - Véronique Cyr
- Department of Medicine, Cardiology Service, Centre Hospitalier de l'Université de Montréal, Montreal, QC, Canada
| | - Giovanni Romanelli
- Department of Medicine, Cardiology Service, Centre Hospitalier de l'Université de Montréal, Montreal, QC, Canada
| | - Monique Ruel
- Department of Anesthesiology, Centre Hospitalier de l'Université de Montréal, 1051 rue Sanguinet, Pavillon D, porte D04.5028, Montreal, QC, H2X 3E4, Canada
| | | | - Arnaud Robitaille
- Department of Anesthesiology, Centre Hospitalier de l'Université de Montréal, 1051 rue Sanguinet, Pavillon D, porte D04.5028, Montreal, QC, H2X 3E4, Canada. .,Centre d'apprentissage des attitudes et habiletés cliniques, Université de Montréal, Montreal, QC, Canada.
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Mitchell OJ, Teran F, Patel S, Baston C. Critical Care Echocardiography: A Primer for the Nephrologist. Adv Chronic Kidney Dis 2021; 28:244-251. [PMID: 34906309 DOI: 10.1053/j.ackd.2021.02.002] [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: 12/02/2020] [Revised: 01/28/2021] [Accepted: 02/02/2021] [Indexed: 12/16/2022]
Abstract
Critical care echocardiography (CCE) refers to the goal-directed use of transthoracic or transesophageal echocardiography and represents one of the most common applications of critical care ultrasound. CCE can be performed at the point of care, is easily repeated following changes in clinical status, and does not expose the patient to ionizing radiation. Nephrologists who participate in the care of patients in the intensive care unit will regularly encounter CCE as part of the decision-making and bedside management of ICU patients. The four primary indications for CCE are the characterization of shock, evaluation of preload tolerance, evaluation of volume responsiveness, and serial hemodynamic assessment to evaluate response to therapeutic interventions. This article provides an overview of the anatomical structures that are routinely assessed in basic CCE, describes how these findings are incorporated into the clinical assessment of critically ill patients, and introduces some common applications of advanced CCE.
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Fatima H, Amador Y, Walsh DP, Qureshi NQ, Chaudhary O, Mufarrih SH, Bose RR, Mahmood F, Matyal R. Simplified Algorithm for Evaluation of Perioperative Hypoxia and Hypotension (SALVATION): A Practical Echo-guided Approach Proposal. J Cardiothorac Vasc Anesth 2021; 35:2273-2282. [PMID: 34006466 DOI: 10.1053/j.jvca.2021.04.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 04/08/2021] [Accepted: 04/11/2021] [Indexed: 01/17/2023]
Abstract
Despite the valuable use of modern applications of perioperative ultrasound across multiple disciplines, there have been limitations to its implementation, restricting its impact on patient-based clinical outcomes. Point-of-care ultrasound evaluation of hypoxia and hypotension is an important tool to assess the underlying undifferentiated etiologies in a timely manner. However, there is a lack of consensus on the formal role of ultrasound during evaluation of perioperative hypoxia or hypotension. The previous ultrasound algorithms have adopted a complex technique that possibly ignore the pathophysiologic mechanisms underlying the conditions presenting in a similar fashion. The authors here propose a simple, sequential and focused multiorgan approach, applicable for the evaluation of perioperative hypotension and hypoxia in emergency scenarios. The authors believe this approach will enhance the care provided in the postanesthesia care unit, operating room, and intensive care unit.
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Affiliation(s)
- Huma Fatima
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Centre, Harvard Medical School, Boston, MA
| | - Yannis Amador
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Centre, Harvard Medical School, Boston, MA
| | - Daniel P Walsh
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Centre, Harvard Medical School, Boston, MA
| | - Nada Qaisar Qureshi
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Centre, Harvard Medical School, Boston, MA
| | - Omar Chaudhary
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Centre, Harvard Medical School, Boston, MA
| | - Syed Hamza Mufarrih
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Centre, Harvard Medical School, Boston, MA
| | - Ruma R Bose
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Centre, Harvard Medical School, Boston, MA
| | - Feroze Mahmood
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Centre, Harvard Medical School, Boston, MA
| | - Robina Matyal
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Centre, Harvard Medical School, Boston, MA.
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Trauzeddel RF, Ertmer M, Nordine M, Groesdonk HV, Michels G, Pfister R, Reuter D, Scheeren TWL, Berger C, Treskatsch S. Perioperative echocardiography-guided hemodynamic therapy in high-risk patients: a practical expert approach of hemodynamically focused echocardiography. J Clin Monit Comput 2021; 35:229-243. [PMID: 32458170 PMCID: PMC7943502 DOI: 10.1007/s10877-020-00534-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 05/19/2020] [Indexed: 12/15/2022]
Abstract
The number of high-risk patients undergoing surgery is growing. To maintain adequate hemodynamic functioning as well as oxygen delivery to the vital organs (DO2) amongst this patient population, a rapid assessment of cardiac functioning is essential for the anesthesiologist. Pinpointing any underlying cardiovascular pathophysiology can be decisive to guide interventions in the intraoperative setting. Various techniques are available to monitor the hemodynamic status of the patient, however due to intrinsic limitations, many of these methods may not be able to directly identify the underlying cause of cardiovascular impairment. Hemodynamic focused echocardiography, as a rapid diagnostic method, offers an excellent opportunity to examine signs of filling impairment, cardiac preload, myocardial contractility and the function of the heart valves. We thus propose a 6-step-echocardiographic approach to assess high-risk patients in order to improve and maintain perioperative DO2. The summary of all echocardiographic based findings allows a differentiated assessment of the patient's cardiovascular function and can thus help guide a (patho)physiological-orientated and individualized hemodynamic therapy.
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Affiliation(s)
- R. F. Trauzeddel
- Department of Anesthesiology and Intensive Care Medicine, Campus Benjamin Franklin, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - M. Ertmer
- Department of Anesthesiology, Unfallkrankenhaus Berlin, Berlin, Germany
| | - M. Nordine
- Department of Anesthesiology and Intensive Care Medicine, Campus Benjamin Franklin, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - H. V. Groesdonk
- Department of Interdisciplinary Intensive Care Medicine and Intermediate Care, Helios Hospital Erfurt, Erfurt, Germany
| | - G. Michels
- Department of Internal Medicine III, Heart Center, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - R. Pfister
- Department of Internal Medicine III, Heart Center, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - D. Reuter
- Department of Anesthesiology and Intensive Care Medicine, University of Rostock, Rostock, Germany
| | - T. W. L. Scheeren
- Department of Anesthesiology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - C. Berger
- Department of Anesthesiology and Intensive Care Medicine, Campus Benjamin Franklin, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - S. Treskatsch
- Department of Anesthesiology and Intensive Care Medicine, Campus Benjamin Franklin, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
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Trauzeddel RF, Nordine M, Groesdonk HV, Michels G, Pfister R, Reuter DA, Scheeren TWL, Berger C, Treskatsch S. [Perioperative optimization using hemodynamically focused echocardiography in high-risk patients-A practice guide]. Anaesthesist 2021; 70:772-784. [PMID: 33660043 DOI: 10.1007/s00101-021-00934-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2021] [Indexed: 12/28/2022]
Abstract
BACKGROUND The number of high-risk patients undergoing surgery is steadily increasing. In order to maintain and, if necessary, optimize perioperative hemodynamics as well as the oxygen supply to the organs (DO2) in this patient population, a timely assessment of cardiac function and the underlying pathophysiological causes of hemodynamic instability is essential for the anesthesiologist. A variety of hemodynamic monitoring procedures are available for this purpose; however, due to method-immanent limitations they are often not able to directly identify the underlying cause of cardiovascular impairment. OBJECTIVE To present a stepwise algorithm for a perioperative echocardiography-based hemodynamic optimization in noncardiac surgery high-risk patients. In this context, echocardiography on demand according to international guidelines can be performed under certain conditions (hemodynamic instability, nonresponse to hemodynamic treatment) as well as in the context of a planned intraoperative procedure, mostly as a transesophageal echocardiography. METHODS AND RESULTS Hemodynamically focused echocardiography as a rapidly available bedside method, enables the timely diagnosis and assessment of cardiac filling obstructions, volume status and volume response, right and left heart function, and the function of the heart valves. CONCLUSION Integrating all echocardiographic findings in a differentiated assessment of the patient's cardiovascular function enables a (patho)physiologically oriented and individualized hemodynamic treatment.
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Affiliation(s)
- R F Trauzeddel
- Klinik für Anästhesiologie mit Schwerpunkt operative Intensivmedizin, Charité Campus Benjamin Franklin, Charité - Universitätsmedizin Berlin, corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Deutschland
| | - M Nordine
- Klinik für Anästhesiologie mit Schwerpunkt operative Intensivmedizin, Charité Campus Benjamin Franklin, Charité - Universitätsmedizin Berlin, corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Deutschland
| | - H V Groesdonk
- Klinik für Interdisziplinäre Intensivmedizin und Intermediate Care, Helios Klinikum Erfurt, Erfurt, Deutschland
| | - G Michels
- Klinik für Akut- und Notfallmedizin, St.-Antonius-Hospital gGmbH, Eschweiler, Deutschland
| | - R Pfister
- Klinik III für Innere Medizin, Herzzentrum, Uniklinik Köln, Universität zu Köln, Köln, Deutschland
| | - D A Reuter
- Klinik und Poliklinik für Anästhesiologie und Intensivtherapie, Universitätsmedizin Rostock, Rostock, Deutschland
| | - T W L Scheeren
- Klinik für Anästhesiologie, Universitätsmedizin Groningen, Groningen, Niederlande
| | - C Berger
- Klinik für Anästhesiologie mit Schwerpunkt operative Intensivmedizin, Charité Campus Benjamin Franklin, Charité - Universitätsmedizin Berlin, corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Deutschland
| | - S Treskatsch
- Klinik für Anästhesiologie mit Schwerpunkt operative Intensivmedizin, Charité Campus Benjamin Franklin, Charité - Universitätsmedizin Berlin, corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Deutschland.
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Park JH, Heo R, Kang H, Oh J, Lim TH, Ko BS. Diagnostic performance and optimal cut-off values of cardiac biomarkers for predicting cardiac injury in carbon monoxide poisoning. Clin Exp Emerg Med 2020; 7:183-189. [PMID: 33028061 PMCID: PMC7550812 DOI: 10.15441/ceem.19.072] [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: 08/27/2019] [Accepted: 10/11/2019] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE This study aimed to compare the diagnostic performance of cardiac biomarkers and to evaluate the optimal cut-off values for echocardiographic cardiac injury prediction in patients with carbon monoxide (CO) poisoning. METHODS This retrospective observational cohort study included adult patients with acute CO poisoning. Patients who did not undergo transthoracic echocardiography, which was used to define patients with cardiac injury (ejection fraction <55%), were excluded. The area under the curve was used to evaluate diagnostic performance for cardiac injury prediction. Mann-Whitney U, chi-square, and Fisher exact tests were used to analyze data. RESULTS After excluding the 27 patients who did not undergo echocardiography, 114 patients were included in the study. Fifteen (13.2%) patients had cardiac injury. The area under the curve values for the B-type natriuretic peptide, creatine kinase-myocardial band, and troponin I were 0.711 (95% confidence interval [CI], 0.527-0.895; P=0.011), 0.766 (95% CI, 0.607-0.926; P=0.001), and 0.801 (95% CI, 0.647-0.955; P<0.001), respectively, with optimal cut-off values of 330 pg/mL, 10.1 ng/mL, and 0.455 ng/mL, respectively. The sensitivity, specificity, and positive and negative predictive values of troponin I were 67%, 91%, 53%, and 95%, respectively. CONCLUSION Troponin I showed the best diagnostic performance for predicting cardiac injury in patients with CO poisoning. A cut-off value of 0.455 ng/mL appeared optimal for cardiac injury prediction. However, further studies on cardiac biomarkers and other diagnostic tools in CO poisoning are needed given the low sensitivity of troponin I.
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Affiliation(s)
- Jun Hwan Park
- Department of Emergency Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Ran Heo
- Division of Cardiology, Department of Internal Medicine, Hanyang University Medical Center, Seoul, Korea
| | - Hyunggoo Kang
- Department of Emergency Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Jaehoon Oh
- Department of Emergency Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Tae Ho Lim
- Department of Emergency Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Byuk Sung Ko
- Department of Emergency Medicine, Hanyang University College of Medicine, Seoul, Korea
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What can an echocardiographer see in briefly presented stimuli? Perceptual expertise in dynamic search. COGNITIVE RESEARCH-PRINCIPLES AND IMPLICATIONS 2020; 5:30. [PMID: 32696181 PMCID: PMC7374494 DOI: 10.1186/s41235-020-00232-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 05/26/2020] [Indexed: 11/10/2022]
Abstract
Background Experts in medical image perception are able to detect abnormalities rapidly from medical images. This ability is likely due to enhanced pattern recognition on a global scale. However, the bulk of research in this domain has focused on static rather than dynamic images, so it remains unclear what level of information that can be extracted from these displays. This study was designed to examine the visual capabilities of echocardiographers—practitioners who provide information regarding cardiac integrity and functionality. In three experiments, echocardiographers and naïve participants completed an abnormality detection task that comprised movies presented on a range of durations, where half were abnormal. This was followed by an abnormality categorization task. Results Across all durations, the results showed that performance was high for detection, but less so for categorization, indicating that categorization was a more challenging task. Not surprisingly, echocardiographers outperformed naïve participants. Conclusions Together, this suggests that echocardiographers have a finely tuned capability for cardiac dysfunction, and a great deal of visual information can be extracted during a global assessment, within a brief glance. No relationship was evident between experience and performance which suggests that other factors such as individual differences need to be considered for future studies.
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Ye R, Zhou X, Shao F, Xiong L, Hong J, Huang H, Tong W, Wang J, Chen S, Cui A, Peng C, Zhao Y, Chen L. Feasibility of a 5G-Based Robot-Assisted Remote Ultrasound System for Cardiopulmonary Assessment of Patients With Coronavirus Disease 2019. Chest 2020; 159:270-281. [PMID: 32653568 PMCID: PMC7347315 DOI: 10.1016/j.chest.2020.06.068] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 06/20/2020] [Accepted: 06/27/2020] [Indexed: 02/07/2023] Open
Abstract
Background Traditional methods for cardiopulmonary assessment of patients with coronavirus disease 2019 (COVID-19) pose risks to both patients and examiners. This necessitates a remote examination of such patients without sacrificing information quality. Research Question The goal of this study was to assess the feasibility of a 5G-based robot-assisted remote ultrasound system in examining patients with COVID-19 and to establish an examination protocol for telerobotic ultrasound scanning. Study Design and Methods Twenty-three patients with COVID-19 were included and divided into two groups. Twelve were nonsevere cases, and 11 were severe cases. All patients underwent a 5G-based robot-assisted remote ultrasound system examination of the lungs and heart following an established protocol. Distribution characteristics and morphology of the lung and surrounding tissue lesions, left ventricular ejection fraction, ventricular area ratio, pericardial effusion, and examination-related complications were recorded. Bilateral lung lesions were evaluated by using a lung ultrasound score. Results The remote ultrasound system successfully and safely performed cardiopulmonary examinations of all patients. Peripheral lung lesions were clearly evaluated. Severe cases of COVID-19 had significantly more diseased regions (median [interquartile range], 6.0 [2.0-11.0] vs 1.0 [0.0-2.8]) and higher lung ultrasound scores (12.0 [4.0-24.0] vs 2.0 [0.0-4.0]) than nonsevere cases of COVID-19 (both, P < .05). One nonsevere case (8.3%; 95% CI, 1.5-35.4) and three severe cases (27.3%; 95% CI, 9.7-56.6) were complicated by pleural effusions. Four severe cases (36.4%; 95% CI, 15.2-64.6) were complicated by pericardial effusions (vs 0% of nonsevere cases, P < .05). No patients had significant examination-related complications. Interpretation Use of the 5G-based robot-assisted remote ultrasound system is feasible and effectively obtains ultrasound characteristics for cardiopulmonary assessment of patients with COVID-19. By following established protocols and considering medical history, clinical manifestations, and laboratory markers, this system might help to evaluate the severity of COVID-19 remotely.
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Affiliation(s)
- Ruizhong Ye
- Department of Ultrasound Medicine, Zhejiang Provincial People's Hospital & People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Xianlong Zhou
- Emergency Center, Hubei Clinical Research Center for Emergency and Resuscitation, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Fei Shao
- Medical aiding team for COVID-19 in Hubei, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China
| | | | - Jun Hong
- Medical aiding team for COVID-19 in Hubei, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China
| | - Haijun Huang
- Medical aiding team for COVID-19 in Hubei, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China
| | - Weiwei Tong
- Gennlife (Beijing) Biotechnology Co. Ltd., Haidian, Beijing, China
| | - Jing Wang
- Department of Ultrasound Medicine, Zhejiang Provincial People's Hospital & People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Shuangxi Chen
- Department of Ultrasound Medicine, Zhejiang Provincial People's Hospital & People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Ailin Cui
- Department of Ultrasound Medicine, Zhejiang Provincial People's Hospital & People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Chengzhong Peng
- Department of Ultrasound Medicine, Zhejiang Provincial People's Hospital & People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Yan Zhao
- Emergency Center, Hubei Clinical Research Center for Emergency and Resuscitation, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Legao Chen
- Medical aiding team for COVID-19 in Hubei, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China.
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Teeter EG, Arora H. Pro: Qualitative Left Ventricular Ejection Fraction Assessment Is Sufficient for Patients Undergoing Cardiac Surgery. J Cardiothorac Vasc Anesth 2020; 35:332-334. [PMID: 32624436 DOI: 10.1053/j.jvca.2020.06.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 06/04/2020] [Indexed: 11/11/2022]
Affiliation(s)
- Emily G Teeter
- Department of Anesthesiology, University of North Carolina at Chapel Hill, Chapel Hill, NC.
| | - Harendra Arora
- Department of Anesthesiology, University of North Carolina at Chapel Hill, Chapel Hill, NC; Outcomes Research Consortium, Cleveland, OH
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Zhang H, He W, Lian H, Chen X, Wang X, Chao Y, Liu D. Physicians' abilities to obtain and interpret focused cardiac ultrasound images from critically ill patients after a 2-day training course. BMC Cardiovasc Disord 2020; 20:151. [PMID: 32228466 PMCID: PMC7106613 DOI: 10.1186/s12872-020-01423-2] [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: 12/19/2019] [Accepted: 03/09/2020] [Indexed: 02/06/2023] Open
Abstract
Background This study aimed to determine whether a focused 2-day cardiac ultrasound training course could enable physicians to obtain and interpret focused cardiac ultrasound (FCU) images from critically ill patients. Methods We retrospectively reviewed the FCU images submitted by the physicians who attended a 2-day FCU training courses. Three experienced trainers reviewed the images separately. They determined whether the images were assessable and scored the images on an 8-point scale. They also decided whether the physicians provided correct responses for visual estimations of the left ventricular ejection fraction (LVEF) and right ventricle (RV) dilatation and septal motion. Results Among the 327 physicians, 291 obtained images that were considered assessable (89%). The scores for parasternal short-axis view were lower than those obtained for other transthoracic echocardiographic views, p < 0.001. More physicians provided incorrect appraisals of LVEF than of RV dilatation and septal motion (19.9% vs. 3.1%, p < 0.001). The percentages of incorrect answers by LVEF category were as follows: 34.8% on images of LVEF < 30, 24.7% on images of LVEF 30–54, and 16.4% on images of LVEF ≥55%, p < 0.001. A logistic regression analysis showed that patients with abnormal LVEF were associated with physicians’ incorrect assessment of LVEF, with an odds ratio of 1.923 (95% confidence interval (CI):1.071–3.456, p = 0.029). Conclusions A large proportion of physicians could obtain and interpret FCU images from critically ill patients after a 2-day training course. However, they still scored low on the parasternal short-axis view and were more likely to make an incorrect assessment of LVEF in patients with abnormal left ventricular systolic function.
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Affiliation(s)
- Hongmin Zhang
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 1# Shuai Fu Yuan, Dong Cheng District, Beijing, 100730, China
| | - Wei He
- Department of Critical Care Medicine, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China
| | - Hui Lian
- Department of Health Care, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Xiukai Chen
- Pittsburgh Heart, Lung, Blood and Vascular Institute, University of Pittsburgh, School of Medicine, Pittsburgh, PA, USA
| | - Xiaoting Wang
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 1# Shuai Fu Yuan, Dong Cheng District, Beijing, 100730, China
| | - Yangong Chao
- Department of Critical Care Medicine, The First Hospital of Tsing Hua University, Beijing, 100016, China
| | - Dawei Liu
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 1# Shuai Fu Yuan, Dong Cheng District, Beijing, 100730, China.
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Abstract
BACKGROUND Duchenne muscular dystrophy is associated with progressive cardiorespiratory failure, including left ventricular dysfunction. METHODS AND RESULTS Males with probable or definite diagnosis of Duchenne muscular dystrophy, diagnosed between 1 January, 1982 and 31 December, 2011, were identified from the Muscular Dystrophy Surveillance Tracking and Research Network database. Two non-mutually exclusive groups were created: patients with ≥2 echocardiograms and non-invasive positive pressure ventilation-compliant patients with ≥1 recorded ejection fraction. Quantitative left ventricular dysfunction was defined as an ejection fraction <55%. Qualitative dysfunction was defined as mild, moderate, or severe. Progression of quantitative left ventricular dysfunction was modelled as a continuous time-varying outcome. Change in qualitative left ventricle function was assessed by the percentage of patients within each category at each age. Forty-one percent (n = 403) had ≥2 ejection fractions containing 998 qualitative assessments with a mean age at first echo of 10.8 ± 4.6 years, with an average first ejection fraction of 63.1 ± 12.6%. Mean age at first echo with an ejection fraction <55 was 15.2 ± 3.9 years. Thirty-five percent (140/403) were non-invasive positive pressure ventilation-compliant and had ejection fraction information. The estimated rate of decline in ejection fraction from first ejection fraction was 1.6% per year and initiation of non-invasive positive pressure ventilation did not change this rate. CONCLUSIONS In our cohort, we observed that left ventricle function in patients with Duchenne muscular dystrophy declined over time, independent of non-invasive positive pressure ventilation use. Future studies are needed to examine the impact of respiratory support on cardiac function.
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Prada G, Fritz AV, Restrepo-Holguín M, Guru PK, Díaz-Gómez JL. Focused Cardiac Ultrasonography for Left Ventricular Systolic Function. N Engl J Med 2019; 381:e36. [PMID: 31747728 DOI: 10.1056/nejmvcm1802841] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Gabriel Prada
- From the Departments of Critical Care Medicine (G.P., P.K.G., J.L.D.-G.) and Anesthesiology and Perioperative Medicine (A.V.F., M.R.-H., J.L.D.-G.), Mayo Clinic, Jacksonville, FL
| | - Ashley V Fritz
- From the Departments of Critical Care Medicine (G.P., P.K.G., J.L.D.-G.) and Anesthesiology and Perioperative Medicine (A.V.F., M.R.-H., J.L.D.-G.), Mayo Clinic, Jacksonville, FL
| | - Mariana Restrepo-Holguín
- From the Departments of Critical Care Medicine (G.P., P.K.G., J.L.D.-G.) and Anesthesiology and Perioperative Medicine (A.V.F., M.R.-H., J.L.D.-G.), Mayo Clinic, Jacksonville, FL
| | - Pramod K Guru
- From the Departments of Critical Care Medicine (G.P., P.K.G., J.L.D.-G.) and Anesthesiology and Perioperative Medicine (A.V.F., M.R.-H., J.L.D.-G.), Mayo Clinic, Jacksonville, FL
| | - José L Díaz-Gómez
- From the Departments of Critical Care Medicine (G.P., P.K.G., J.L.D.-G.) and Anesthesiology and Perioperative Medicine (A.V.F., M.R.-H., J.L.D.-G.), Mayo Clinic, Jacksonville, FL
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Abuelkasem E, Wang DW, Omer MA, Abdelmoneim SS, Howard-Quijano K, Rakesh H, Subramaniam K. Perioperative clinical utility of myocardial deformation imaging: a narrative review. Br J Anaesth 2019; 123:408-420. [DOI: 10.1016/j.bja.2019.04.065] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 04/09/2019] [Accepted: 04/28/2019] [Indexed: 01/25/2023] Open
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Leeson P, Fletcher AJ. Combining Artificial Intelligence With Human Insight to Automate Echocardiography. Circ Cardiovasc Imaging 2019; 12:e009727. [PMID: 31522554 DOI: 10.1161/circimaging.119.009727] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Paul Leeson
- Oxford Cardiovascular Clinical Research Facility, Radcliffe Department of Medicine, University of Oxford, United Kingdom (P.L.)
| | - Andrew J Fletcher
- Department of Cardiac Physiology, Royal Papworth Hospital NHS Foundation Trust, Cambridge, United Kingdom (A.J.F.)
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Abou Arab O, Fischer MO, Carpentier A, Beyls C, Huette P, Hchikat A, Benammar A, Labont B, Mahjoub Y, Bar S, Guinot PG, Lorne E. Etomidate-induced hypotension: a pathophysiological approach using arterial elastance. Anaesth Crit Care Pain Med 2019; 38:347-352. [DOI: 10.1016/j.accpm.2018.12.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 12/17/2018] [Accepted: 12/18/2018] [Indexed: 11/26/2022]
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