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Del Castillo C, Verdugo F, Appiani F, Yáñez F, Bontá C, Torres-Herrera C, Garcia A, Blázquez-Bermejo Z, Castrodeza J, Requena D, Rodríguez A, Silvio A, Gatica A, Begazo A, Alfaro M. Echocardiogram by apical-subcostal protocol in prone position during invasive mechanical ventilation in cardiovascular intensive care unit. Cardiovasc Ultrasound 2024; 22:7. [PMID: 38858752 PMCID: PMC11163713 DOI: 10.1186/s12947-024-00326-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Accepted: 05/31/2024] [Indexed: 06/12/2024] Open
Abstract
AIMS To evaluate the feasibility of a transthoracic echocardiogram using an apical-subcostal protocol in invasive mechanical ventilation (IMV) and prone position. METHODS Prospective study of adults who required a prone position during IMV. A pillow was placed only under the left hemithorax in the prone position to elevate and ease the apical and subcostal windows. A critical care cardiologist (prone group) acquired and evaluated the images using the apical-subcostal protocol. Besides, we used ambulatory echocardiograms performed as a comparative group (supine group). RESULTS 86 patients were included, 43 in the prone and 43 in the supine. In the prone group, the indication to perform an echocardiogram was hemodynamic monitoring. All patients were ventilated with protective parameters, and the mean end-expiratory pressure was 10.6 cmH2O. The protocol was performed entirely in 42 of 43 patients in the prone group because one patient did not have any acoustic window. In the 43 patients in the prone group analyzed and compared to the supine group, global biventricular function was assessed in 97.7% (p = 1.0), severe heart valve disease in 88.4% (p = 0.055), ruled out of the presence of pulmonary hypertension in 76.7% (p = 0.80), pericardial effusion in 93% (p = 0.12), and volume status by inferior vena cava in 93% (p = 0.48). Comparing prone versus supine position, a statistical difference was found when evaluating the left ventricle apical 2-chamber view (65.1 versus 100%, p < 0.01) and its segmental function (53.4 versus 100%, p < 0.01). CONCLUSION The echocardiogram using an apical-subcostal protocol is feasible in patients in the IMV and prone position.
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Affiliation(s)
- César Del Castillo
- Cardiovascular department, Hospital DIPRECA, Santiago, Chile.
- Postgraduate Department, Faculty of Medicine, Universidad Diego Portales, Santiago, Chile.
| | | | - Franco Appiani
- Cardiovascular department, Hospital DIPRECA, Santiago, Chile
- Postgraduate Department, Faculty of Medicine, Universidad Diego Portales, Santiago, Chile
| | - Francisca Yáñez
- Cardiovascular department, Hospital Clínico San Borja Arriarán, Santiago, Chile
| | - Camila Bontá
- Cardiovascular department, Hospital Clínico San Borja Arriarán, Santiago, Chile
| | - Carlos Torres-Herrera
- Postgraduate Department, Faculty of Medicine, Universidad Diego Portales, Santiago, Chile
| | - Angela Garcia
- Intensive Care Unit, Hospital DIPRECA, Santiago, Chile
| | - Zorba Blázquez-Bermejo
- Cardiovascular department, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Javier Castrodeza
- Cardiovascular department, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Daniel Requena
- Cardiovascular department, Hospital DIPRECA, Santiago, Chile
| | | | - Arquimedes Silvio
- Cardiovascular department, Hospital DIPRECA, Santiago, Chile
- Postgraduate Department, Faculty of Medicine, Universidad Diego Portales, Santiago, Chile
| | - Agustín Gatica
- Cardiovascular department, Hospital DIPRECA, Santiago, Chile
| | - Arnulfo Begazo
- Cardiovascular department, Hospital DIPRECA, Santiago, Chile
- Postgraduate Department, Faculty of Medicine, Universidad Diego Portales, Santiago, Chile
| | - Mario Alfaro
- Cardiovascular department, Hospital Clínico San Borja Arriarán, Santiago, Chile
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Aguirre-Villarreal D, Leal-Villarreal MADJ, García-Juárez I, Argaiz ER, Koratala A. Sound waves and solutions: Point-of-care ultrasonography for acute kidney injury in cirrhosis. World J Crit Care Med 2024; 13:91212. [PMID: 38855265 PMCID: PMC11155499 DOI: 10.5492/wjccm.v13.i2.91212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 03/05/2024] [Accepted: 04/22/2024] [Indexed: 06/03/2024] Open
Abstract
This article delves into the intricate challenges of acute kidney injury (AKI) in cirrhosis, a condition fraught with high morbidity and mortality. The complexities arise from distinguishing between various causes of AKI, particularly hemodynamic AKI, in cirrhotic patients, who experience hemodynamic changes due to portal hypertension. The term "hepatocardiorenal syndrome" is introduced to encapsulate the intricate interplay among the liver, heart, and kidneys. The narrative emphasizes the often-overlooked aspect of cardiac function in AKI assessments in cirrhosis, unveiling the prevalence of cirrhotic cardiomyopathy marked by impaired diastolic function. The conventional empiric approach involving volume expansion and vasopressors for hepatorenal syndrome is critically analyzed, highlighting potential risks and variable patient responses. We advocate for a nuanced algorithm for AKI evaluation in cirrhosis, prominently featuring point-of-care ultrasonography (POCUS). POCUS applications encompass assessing fluid tolerance, detecting venous congestion, and evaluating cardiac function.
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Affiliation(s)
- David Aguirre-Villarreal
- Departamento de Gastroenterología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico
| | | | - Ignacio García-Juárez
- Unidad de Hepatología y Trasplante, Departamento de Gastroenterología, Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Mexico City 14080, Mexico
| | - Eduardo R Argaiz
- Departamento de Nefrología y Metabolismo Mineral, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico
- Tecnológico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Mexico City 64710, Mexico
| | - Abhilash Koratala
- Department of Nephrology, Medical College of Wisconsin, Milwaukee, WI 53226, United States
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Zhang RS, Yuriditsky E, Nayar AC, Elbaum L, Greco AA, Rhee AJ, Mukherjee V, Keller N, Alviar CL, Horowitz JM, Bangalore S. Low left ventricular outflow tract velocity time integral predicts normotensive shock in patients with acute pulmonary embolism. Am Heart J 2024; 272:106-108. [PMID: 38670834 DOI: 10.1016/j.ahj.2024.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 02/18/2024] [Accepted: 03/11/2024] [Indexed: 04/28/2024]
Abstract
In this study, we found that a low LVOT VTI (<15 cm), a simple bedside point-of-care measurement, predicts normotensive shock in patients with acute intermediate-risk PE.
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Affiliation(s)
- Robert S Zhang
- Division of Cardiovascular Medicine, New York University, New York, NY
| | - Eugene Yuriditsky
- Division of Cardiovascular Medicine, New York University, New York, NY
| | - Ambika C Nayar
- Division of Cardiovascular Medicine, New York University, New York, NY
| | - Lindsay Elbaum
- Division of Cardiovascular Medicine, New York University, New York, NY
| | - Allison A Greco
- Division of Pulmonary Critical Care, and Sleep Medicine, NYU Grossman School of Medicine, NY
| | - Aaron J Rhee
- Department of Medicine, New York University, New York, NY
| | - Vikramjit Mukherjee
- Division of Pulmonary Critical Care, and Sleep Medicine, NYU Grossman School of Medicine, NY
| | - Norma Keller
- Division of Cardiovascular Medicine, New York University, New York, NY
| | - Carlos L Alviar
- Division of Cardiovascular Medicine, New York University, New York, NY
| | - James M Horowitz
- Division of Cardiovascular Medicine, New York University, New York, NY
| | - Sripal Bangalore
- Division of Cardiovascular Medicine, New York University, New York, NY.
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Bruna M, Alfaro S, Muñoz F, Cisternas L, Gonzalez C, Conlledo R, Ulloa-Morrison R, Huilcaman M, Retamal J, Castro R, Rola P, Wong A, Argaiz ER, Contreras R, Hernandez G, Kattan E. Dynamic changes of hepatic vein Doppler velocities predict preload responsiveness in mechanically ventilated critically ill patients. Intensive Care Med Exp 2024; 12:46. [PMID: 38717558 PMCID: PMC11078902 DOI: 10.1186/s40635-024-00631-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 05/04/2024] [Indexed: 05/12/2024] Open
Abstract
BACKGROUND Assessment of dynamic parameters to guide fluid administration is one of the mainstays of current resuscitation strategies. Each test has its own limitations, but passive leg raising (PLR) has emerged as one of the most versatile preload responsiveness tests. However, it requires real-time cardiac output (CO) measurement either through advanced monitoring devices, which are not routinely available, or echocardiography, which is not always feasible. Analysis of the hepatic vein Doppler waveform change, a simpler ultrasound-based assessment, during a dynamic test such as PLR could be useful in predicting preload responsiveness. The objective of this study was to assess the diagnostic accuracy of hepatic vein Doppler S and D-wave velocities during PLR as a predictor of preload responsiveness. METHODS Prospective observational study conducted in two medical-surgical ICUs in Chile. Patients in circulatory failure and connected to controlled mechanical ventilation were included from August to December 2023. A baseline ultrasound assessment of cardiac function was performed. Then, simultaneously, ultrasound measurements of hepatic vein Doppler S and D waves and cardiac output by continuous pulse contour analysis device were performed during a PLR maneuver. RESULTS Thirty-seven patients were analyzed. 63% of the patients were preload responsive defined by a 10% increase in CO after passive leg raising. A 20% increase in the maximum S wave velocity after PLR showed the best diagnostic accuracy with a sensitivity of 69.6% (49.1-84.4) and specificity of 92.8 (68.5-99.6) to detect preload responsiveness, with an area under curve of receiving operator characteristic (AUC-ROC) of 0.82 ± 0.07 (p = 0.001 vs. AUC-ROC of 0.5). D-wave velocities showed worse diagnostic accuracy. CONCLUSIONS Hepatic vein Doppler assessment emerges as a novel complementary technique with adequate predictive capacity to identify preload responsiveness in patients in mechanical ventilation and circulatory failure. This technique could become valuable in scenarios of basic hemodynamic monitoring and when echocardiography is not feasible. Future studies should confirm these results.
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Affiliation(s)
- Mario Bruna
- Unidad de Cuidados Intensivos, Hospital de Quilpué, Quilpué, Chile
- Facultad de Medicina, Escuela de Medicina, Universidad Andrés Bello, Viña del Mar, Chile
| | - Sebastian Alfaro
- Unidad de Cuidados Intensivos, Hospital de Quilpué, Quilpué, Chile
| | - Felipe Muñoz
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Avenida Diagonal Paraguay 362, Santiago, Chile
| | - Liliana Cisternas
- Unidad de Cuidados Intensivos, Hospital de Quilpué, Quilpué, Chile
- Facultad de Medicina, Escuela de Medicina, Universidad Andrés Bello, Viña del Mar, Chile
| | - Cecilia Gonzalez
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Avenida Diagonal Paraguay 362, Santiago, Chile
| | - Rodrigo Conlledo
- Unidad de Cuidados Intensivos, Hospital de Quilpué, Quilpué, Chile
- Facultad de Medicina, Escuela de Medicina, Universidad Andrés Bello, Viña del Mar, Chile
| | | | - Marcos Huilcaman
- Unidad de Cuidados Intensivos, Hospital Gustavo Fricke, Viña del Mar, Chile
| | - Jaime Retamal
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Avenida Diagonal Paraguay 362, Santiago, Chile
| | - Ricardo Castro
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Avenida Diagonal Paraguay 362, Santiago, Chile
| | - Philippe Rola
- Intensive Care Unit, Hopital Santa Cabrini, CIUSSS EMTL, Montreal, Canada
| | - Adrian Wong
- Department of Critical Care, King's College Hospital, London, UK
| | - Eduardo R Argaiz
- Departamento de Nefrología y Metabolismo Mineral, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
- Tecnológico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Mexico City, Mexico
| | - Roberto Contreras
- Unidad de Cuidados Intensivos, Hospital Biprovincial Quillota-Petorca, Quillota, Chile
| | - Glenn Hernandez
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Avenida Diagonal Paraguay 362, Santiago, Chile
| | - Eduardo Kattan
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Avenida Diagonal Paraguay 362, Santiago, Chile.
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Wong JJ, Ho JS, Teo LLY, Wee HN, Chua KV, Ching J, Gao F, Tan SY, Tan RS, Kovalik JP, Koh AS. Effects of short-term moderate intensity exercise on the serum metabolome in older adults: a pilot randomized controlled trial. COMMUNICATIONS MEDICINE 2024; 4:80. [PMID: 38704414 PMCID: PMC11069586 DOI: 10.1038/s43856-024-00507-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 04/23/2024] [Indexed: 05/06/2024] Open
Abstract
BACKGROUND We previously reported changes in the serum metabolome associated with impaired myocardial relaxation in an asymptomatic older community cohort. In this prospective parallel-group randomized control pilot trial, we subjected community adults without cardiovascular disease to exercise intervention and evaluated the effects on serum metabolomics. METHODS Between February 2019 to November 2019, thirty (83% females) middle-aged adults (53 ± 4 years) were randomized with sex stratification to either twelve weeks of moderate-intensity exercise training (Intervention) (n = 15) or Control (n = 15). The Intervention group underwent once-weekly aerobic and strength training sessions for 60 min each in a dedicated cardiac exercise laboratory for twelve weeks (ClinicalTrials.gov: NCT03617653). Serial measurements were taken pre- and post-intervention, including serum sampling for metabolomic analyses. RESULTS Twenty-nine adults completed the study (Intervention n = 14; Control n = 15). Long-chain acylcarnitine C20:2-OH/C18:2-DC was reduced in the Intervention group by a magnitude of 0.714 but increased in the Control group by a magnitude of 1.742 (mean difference -1.028 age-adjusted p = 0.004). Among Controls, alanine correlated with left ventricular mass index (r = 0.529, age-adjusted p = 0.018) while aspartate correlated with Lateral e' (r = -764, age-adjusted p = 0.016). C20:3 correlated with E/e' ratio fold-change in the Intervention group (r = -0.653, age-adjusted p = 0.004). Among Controls, C20:2/C18:2 (r = 0.795, age-adjusted p = 0.005) and C20:2-OH/C18:2-DC fold-change (r = 0.742, age-adjusted p = 0.030) correlated with change in E/A ratio. CONCLUSIONS Corresponding relationships between serum metabolites and cardiac function in response to exercise intervention provided pilot observations. Future investigations into cellular fuel oxidation or central carbon metabolism pathways that jointly impact the heart and related metabolic systems may be critical in preventive trials.
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Affiliation(s)
- Jie Jun Wong
- National Heart Centre Singapore, Singapore, Singapore
| | - Jien Sze Ho
- National Heart Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, Singapore, Singapore
| | - Louis L Y Teo
- National Heart Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, Singapore, Singapore
| | | | | | | | - Fei Gao
- National Heart Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, Singapore, Singapore
| | - Swee Yaw Tan
- National Heart Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, Singapore, Singapore
| | - Ru-San Tan
- National Heart Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, Singapore, Singapore
| | - Jean-Paul Kovalik
- Duke-NUS Medical School, Singapore, Singapore
- Singapore General Hospital, Singapore, Singapore
| | - Angela S Koh
- National Heart Centre Singapore, Singapore, Singapore.
- Duke-NUS Medical School, Singapore, Singapore.
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6
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Karabulut M, Uslu HS. Effect of sleeping position on cardiac output, pulmonary pressure, and superior vena cava flow in healthy term infants. Pediatr Neonatol 2024; 65:229-236. [PMID: 37973502 DOI: 10.1016/j.pedneo.2023.09.003] [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: 05/10/2023] [Revised: 09/06/2023] [Accepted: 09/08/2023] [Indexed: 11/19/2023] Open
Abstract
BACKGROUND Although the mechanism of action in newborns is unknown, sleep positioning is associated with many pathophysiological events. This study aimed to compare the effects of supine and prone sleeping positions on cardiac output (CO), systolic pulmonary arterial pressure (SPAP), and superior vena cava (SVC) flow in healthy newborns. METHODS In the first 24-72 h of life, 40 healthy term newborns born in the same hospital were included in this prospective, cross-sectional, observational study. CO, SVC flow, and SPAP values of newborns in the supine and prone sleeping positions were calculated using echocardiographic examination. The measurements were statistically compared. RESULTS In the supine sleeping position, CO, SVC flow, and SPAP were 235.00 (193.07-283.30) ml/kg/min, 92.80 (77.82-121.87) ml/kg/min, and 27.85 (24.70-30.48) mmHg. In the prone sleeping position, CO, SVC flow, and SPAP were measured as 195.35 (166.00-229.40) ml/kg/min, 67.25 (51.82-96.66) ml/kg/min, 31.60 (28.45-37.20) mmHg, respectively. Depending on sleeping position, these variables were significantly different between the groups. CONCLUSION SVC flow and CO decreased in the prone sleeping position compared to the supine sleeping position in healthy newborns, whereas SPAP increased. The different hemodynamic effects of sleeping position on the cardiac, pulmonary, and nervous systems should be considered as flow and pressure changes are important in newborns.
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Affiliation(s)
- Muhammed Karabulut
- Department of Paediatric Cardiology, Clinical of Paediatric Health and Diseases, Hamidiye Etfal Training and Research Hospital, İstanbul, Turkey.
| | - Hasan Sinan Uslu
- Department of Neonatal İntensive Care, Clinical of Paediatric Health and Diseases, Hamidiye Etfal Training and Research Hospital, İstanbul, Turkey
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Banegas-Deras EJ, Mazón-Ruiz J, Romero-González G, Ruiz-Cobo JC, Sanz-García C, Serrano-Soto M, Sánchez E, Argaiz ER. Acute kidney injury and point-of-care ultrasound in liver cirrhosis: redefining hepatorenal syndrome. Clin Kidney J 2024; 17:sfae112. [PMID: 38726210 PMCID: PMC11079671 DOI: 10.1093/ckj/sfae112] [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: 01/04/2024] [Indexed: 05/12/2024] Open
Abstract
Acute kidney injury (AKI) in patients with cirrhosis is a diagnostic challenge due to multiple and sometimes overlapping possible etiologies. Many times, diagnosis cannot be made based on case history, physical examination or laboratory data, especially when the nephrologist is faced with AKI with a hemodynamic basis, such as hepatorenal syndrome. In addition, the guidelines still include generalized recommendations regarding withdrawal of diuretics and plasma volume expansion with albumin for 48 h, which may be ineffective and counterproductive and may have iatrogenic effects, such as fluid overload and acute cardiogenic pulmonary edema. For this reason, the use of new tools, such as hemodynamic point-of-care ultrasound (PoCUS), allows us to phenotype volume status more accurately and ultimately guide medical treatment in a noninvasive, rapid and individualized manner.
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Affiliation(s)
| | - Jaime Mazón-Ruiz
- Nephrology Department, Central University Hospital of Asturias, Oviedo, Spain
| | - Gregorio Romero-González
- Nephrology Department, Germans Trias i Pujol University Hospital, Badalona, Spain
- International Renal Research Institute of Vicenza, Vicenza, Italy
| | - Juan Carlos Ruiz-Cobo
- Liver Unit, Vall d'Hebron University Hospital, Barcelona, Spain
- Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Clara Sanz-García
- Nephrology Department, Grande Covián de Arriondas Hospital, Arriondas, Spain
| | - Mara Serrano-Soto
- International Renal Research Institute of Vicenza, Vicenza, Italy
- Nephrology Department, Marqués de Valdecilla University Hospital, Santander, Spain
| | - Emilio Sánchez
- Nephrology Department, Cabueñes University Hospital, Gijón, Spain
| | - Eduardo R Argaiz
- Tecnológico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Mexico City, Mexico
- Departamento de Nefrología y Metabolismo Mineral, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
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Xu M, Liu H, Su MQ, Li L, Yu AL, Chen K, Huang YK, Zhao QL, Huang WY, Huang X. Absorbed Bioactive Compounds Replicate Guanxin II-Induced Endothelium-Associated in/ex vivo Vasodilation. Chin J Integr Med 2024; 30:387-397. [PMID: 38302647 DOI: 10.1007/s11655-024-3651-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/02/2023] [Indexed: 02/03/2024]
Abstract
OBJECTIVE To develop an interference-free and rapid method to elucidate Guanxin II (GX II)'s representative vasodilator absorbed bioactive compounds (ABCs) among enormous phytochemicals. METHODS The contents of ferulic acid, tanshinol, and hydroxysafflor yellow A (FTA) in GX II/rat serum after the oral administration of GX II (30 g/kg) were detected using ultra-performance liquid chromatography-mass spectrometry. Totally 18 rats were randomly assigned to the control group (0.9% normal saline), GX II (30 g/kg) and FTA (5, 28 and 77 mg/kg) by random number table method. Diastolic coronary flow velocity-time integral (VTI), i.e., coronary flow or coronary flow-mediated dilation (CFMD), and endothelium-intact vascular tension of isolated aortic rings were measured. After 12 h of exposure to blank medium or 0.5 mmol/L H2O2, endothelial cells (ECs) were treated with post-dose GX II of supernatant from deproteinized serum (PGSDS, 300 µL PGSDS per 1 mL of culture medium) or FTA (237, 1539, and 1510 mg/mL) for 10 min as control, H2O2, PGSDS and FTA groups. Nitric oxide (NO), vascular endothelial growth factor (VEGF), endothelin-1 (ET-1), superoxide dismutase (SOD), malondialdehyde (MDA) and phosphorylated phosphoinositide 3 kinase (p-PI3K), phosphorylated protein kinase B (p-AKT), phosphorylated endothelial nitric oxide synthase (p-eNOS) were analyzed. PGSDS was developed as a GX II proxy of ex vivo herbal crude extracts. RESULTS PGSDS effectively eliminates false responses caused by crude GX II preparations. When doses equaled the contents in GX II/its post-dose serum, FTA accounted for 98.17% of GX II -added CFMD and 92.99% of PGSDS-reduced vascular tension. In ECs, FTA/PGSDS was found to have significant antioxidant (lower MDA and higher SOD, P<0.01) and endothelial function-protective (lower VEGF, ET-1, P<0.01) effects. The increases in aortic relaxation, endothelial NO levels and phosphorylated PI3K/Akt/eNOS protein induced by FTA/PGSDS were markedly abolished by NG-nitro-L-arginine methyl ester (L-NA, eNOS inhibitor) and wortmannin (PI3K/AKT inhibitor), respectively, indicating an endothelium-dependent vasodilation via the PI3K/AKT-eNOS pathway (P<0.01). CONCLUSION This study provides a strategy for rapidly and precisely elucidating GX II's representative in/ex vivo cardioprotective absorbed bioactive compounds (ABCs)-FTA, suggesting its potential in advancing precision ethnomedicine.
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Affiliation(s)
- Min Xu
- Institute of Traditional Chinese Medicine Related Comorbid Depression, Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Hao Liu
- Institute of Traditional Chinese Medicine Related Comorbid Depression, Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Meng-Qing Su
- Institute of Traditional Chinese Medicine Related Comorbid Depression, Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Lan Li
- Institute of Traditional Chinese Medicine Related Comorbid Depression, Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Ai-Ling Yu
- Institute of Traditional Chinese Medicine Related Comorbid Depression, Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Ken Chen
- Institute of Traditional Chinese Medicine Related Comorbid Depression, Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Yun-Ke Huang
- Department of Gynecology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, 310053, China
| | - Qiu-Long Zhao
- Institute of Traditional Chinese Medicine Related Comorbid Depression, Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Wen-Ya Huang
- Institute of Traditional Chinese Medicine Related Comorbid Depression, Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Xi Huang
- Institute of Traditional Chinese Medicine Related Comorbid Depression, Nanjing University of Chinese Medicine, Nanjing, 210029, China.
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Hendrickson KW, Cirulis MM, Burk RE, Lanspa MJ, Peltan ID, Marshall H, Groat D, Jephson A, Beesley SJ, Brown SM. Identifying predictors and determining mortality rates of septic cardiomyopathy and sepsis-related cardiogenic shock: A retrospective, observational study. PLoS One 2024; 19:e0299876. [PMID: 38662672 PMCID: PMC11045062 DOI: 10.1371/journal.pone.0299876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 02/16/2024] [Indexed: 04/28/2024] Open
Abstract
INTRODUCTION Septic shock is a severe form of sepsis that has a high mortality rate, and a substantial proportion of these patients will develop cardiac dysfunction, often termed septic cardiomyopathy (SCM). Some SCM patients may develop frank cardiac failure, termed sepsis-related cardiogenic shock (SeRCS). Little is known of SeRCS. This study describes baseline characteristics of patients with SCM and SeRCS compared to patients with septic shock without cardiac dysfunction. We compare clinical outcomes among SCM, SeRCS, and septic shock, and identify risk factors for the development of SCM and SeRCS. METHODS Septic patients admitted to the ICU with an echocardiogram obtained within 72 hours were included. Left ventricular ejection fraction of ≤55% was used to define SCM, and cardiac index ≤2.1 L/min/m2 among patients with SCM defined SeRCS. Machine learning was used to identify risk factors for development of SCM and SeRCS. Logistic regression was used to compare mortality among groups. RESULTS Among 1229 patients, 977 patients had septic shock without cardiac dysfunction, 207 had SCM, and 45 had SeRCS. In patients with septic shock, the strongest predictor for developing SCM and SeRCs was a prior history of cardiac dysfunction. Mortality did not significantly differ among the three groups. CONCLUSIONS SCM and SeRCS affect a minority of patients with septic shock, disproportionately affecting individuals with a history of cardiac disease. We did not identify a mortality difference associated with SCM or SeRCS. Additional work is needed to define further subtypes and treatment options for this patient population.
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Affiliation(s)
- Kathryn W. Hendrickson
- The Oregon Clinic Department of Pulmonary, Critical Care, and Sleep Medicine East, Portland, OR, United States of America
| | - Meghan M. Cirulis
- Division of Pulmonary and Critical Care Medicine, Intermountain Medical Center, Salt Lake City, UT, United States of America
- Division of Pulmonary and Critical Care Medicine, University of Utah, Salt Lake City, UT, United States of America
| | - Rebecca E. Burk
- Renown Medical Group Department of Pulmonary and Critical Care Medicine, Reno, NV, United States of America
| | - Michael J. Lanspa
- Division of Pulmonary and Critical Care Medicine, Intermountain Medical Center, Salt Lake City, UT, United States of America
- Division of Pulmonary and Critical Care Medicine, University of Utah, Salt Lake City, UT, United States of America
| | - Ithan D. Peltan
- Division of Pulmonary and Critical Care Medicine, Intermountain Medical Center, Salt Lake City, UT, United States of America
- Division of Pulmonary and Critical Care Medicine, University of Utah, Salt Lake City, UT, United States of America
| | - Hunter Marshall
- Division of Pulmonary and Critical Care Medicine, University of Utah, Salt Lake City, UT, United States of America
| | - Danielle Groat
- Division of Pulmonary and Critical Care Medicine, Intermountain Medical Center, Salt Lake City, UT, United States of America
- Intermountain Healthcare, Information and Analytics, Salt Lake City, UT, United States of America
| | - Al Jephson
- Division of Pulmonary and Critical Care Medicine, Intermountain Medical Center, Salt Lake City, UT, United States of America
- Intermountain Healthcare, Information and Analytics, Salt Lake City, UT, United States of America
| | - Sarah J. Beesley
- Division of Pulmonary and Critical Care Medicine, Intermountain Medical Center, Salt Lake City, UT, United States of America
- Division of Pulmonary and Critical Care Medicine, University of Utah, Salt Lake City, UT, United States of America
| | - Samuel M. Brown
- Division of Pulmonary and Critical Care Medicine, Intermountain Medical Center, Salt Lake City, UT, United States of America
- Division of Pulmonary and Critical Care Medicine, University of Utah, Salt Lake City, UT, United States of America
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Sández I, Martín-Flores M, Portela DA, Márquez-Grados F, Monge-García MI. Haemodynamic effects of labetalol in isoflurane-anaesthetized dogs that received dexmedetomidine: A randomized clinical trial. Vet Anaesth Analg 2024; 51:126-134. [PMID: 38114389 DOI: 10.1016/j.vaa.2023.10.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 09/06/2023] [Accepted: 10/11/2023] [Indexed: 12/21/2023]
Abstract
OBJECTIVE To test whether labetalol improved cardiovascular function in anaesthetized dogs injected with dexmedetomidine. STUDY DESIGN Prospective, randomized, blinded, clinical trial. ANIMALS A group of 20 healthy client-owned dogs undergoing ovariohysterectomy. METHODS Each dog received dexmedetomidine (5 μg kg-1) and methadone (0.2 mg kg-1) intramuscularly. General anaesthesia was induced with propofol and maintained with isoflurane in oxygen. All dogs were mechanically ventilated, and epidural anaesthesia with lidocaine was performed. Standard anaesthetic monitoring, invasive blood pressure, oesophageal Doppler and near-infrared tissue perfusion/oxygenation were applied. Peak velocity (PV), mean acceleration and stroke distance (SD) from the oesophageal Doppler were recorded. Arterial elastance (Ea) was calculated. Tissue oxygenation (rStO2) was also recorded. Prior to surgery, animals received either 0.1 mg kg-1 of labetalol intravenously (IV) over 60 seconds or the equivalent volume of saline. Data were recorded for 20 minutes. Age, weight and propofol dose were compared with a Wilcoxon rank-sum test. The effects of time, treatment and their interaction with haemodynamic and perfusion variables were analysed with mixed-effect models and Tukey's post hoc tests. RESULTS Significant effects of the interaction between treatment and time were observed whereby heart rate (HR) was higher in dogs given labetalol (p = 0.01), whereas arterial blood pressure and Ea were lower (p < 0.01). Similarly, PV, SD and rStO2 were higher in the labetalol group, and significant effects were detected for the interaction between treatment and time (p < 0.01). CONCLUSIONS AND CLINICAL RELEVANCE Labetalol at a dose of 0.1 mg kg-1 IV in dogs under general anaesthesia and administered a pre-anaesthetic medication of dexmedetomidine produced mild vasodilation (reduction of Ea), resulting in an increase in HR and left ventricular outflow. Although labetalol could be an effective option to achieve haemodynamic optimization after dexmedetomidine-induced vasoconstriction, future studies are needed to assess long-term effects.
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Affiliation(s)
- Ignacio Sández
- Department of Anesthesiology and Pain Management, Hospital Veterinario AniCura-Vetsia, Madrid, Spain.
| | - Manuel Martín-Flores
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Diego A Portela
- Department of Comparative, Diagnostic, and Population Medicine, University of Florida College of Veterinary Medicine, Gainesville, FL, USA
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11
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Salinas P, Dieiev V. Critical Care Echocardiography: Assessing Left and Right Ventricular Function in the Intensive Care Unit. Semin Ultrasound CT MR 2024; 45:58-73. [PMID: 38097023 DOI: 10.1053/j.sult.2023.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
In this review we explore Left Ventricular and Right Ventricular parameters that intensivists can use to evaluate, manage, and monitor the critically ill. Understanding these parameters, their clinical relevance, and potential pitfalls, is crucial for thorough and accurate patient assessment and management. Critical Care Echocardiography encompasses all the advanced cardiac and non-cardiac skillset needed to integrate the findings of Left Ventricular and Right Ventricular size and function. We advocate for a physiologic approach to the critically ill patient, tailoring therapy to reverse the etiology while simultaneously supporting circulation based on a sound understanding of left and right ventricular pressures, volumes, and flow.
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Affiliation(s)
- Pedro Salinas
- St. Luke's Medical Center, Aurora Critical Care Service, Milwaukee, WI.
| | - Vladyslav Dieiev
- St. Luke's Medical Center, Aurora Critical Care Service, Milwaukee, WI
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12
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Sharma V, Sharma A, Sethi A, Pathania J. Diagnostic accuracy of left ventricular outflow tract velocity time integral versus inferior vena cava collapsibility index in predicting post-induction hypotension during general anesthesia: an observational study. Acute Crit Care 2024; 39:117-126. [PMID: 38476064 PMCID: PMC11002618 DOI: 10.4266/acc.2023.00913] [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: 07/18/2023] [Revised: 12/20/2023] [Accepted: 01/08/2024] [Indexed: 03/14/2024] Open
Abstract
BACKGROUND Point of care ultrasound (POCUS) is being explored for dynamic measurements like inferior vena cava collapsibility index (IVC-CI) and left ventricular outflow tract velocity time integral (LVOT-VTI) to guide anesthesiologists in predicting fluid responsiveness in the preoperative period and in treating post-induction hypotension (PIH) with varying accuracy. METHODS In this prospective, observational study on included 100 adult patients undergoing elective surgery under general anesthesia, the LVOT-VTI and IVC-CI measurements were performed in the preoperative room 15 minutes prior to surgery, and PIH was measured for 20 minutes in the post-induction period. RESULTS The incidence of PIH was 24%. The area under the curve, sensitivity, specificity, positive predictive value, negative predictive value, and diagnostic accuracy of the two techniques at 95% confidence interval was 0.613, 30.4%, 93.3%, 58.3%, 81.4%, 73.6% for IVC-CI and 0.853, 83.3%, 80.3%, 57.1%, 93.8%, 77.4% for LVOT-VTI, respectively. In multivariate analysis, the cutoff value for IVC-CI was >51.5 and for LVOT-VTI it was ≤17.45 for predicting PIH with odd ratio [OR] of 8.491 (P=0.025) for IVCCI and OR of 17.427 (P<0.001) for LVOT. LVOT-VTI assessment was possible in all the patients, while 10% of patients were having poor window for IVC measurements. CONCLUSIONS We recommend the use of POCUS using LVOT-VTI or IVC-CI to predict PIH, to decrease the morbidity of patients undergoing surgery. Out of these, we recommend LVOT-VTI measurements as it has showed a better diagnostic accuracy (77.4%) with no failure rate.
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Affiliation(s)
- Vibhuti Sharma
- Department of Anaesthesia, Indira Gandhi Medical College Shimla, Shimla, India
| | - Arti Sharma
- Department of Anaesthesia, Indira Gandhi Medical College Shimla, Shimla, India
| | - Arvind Sethi
- Department of Anaesthesia, Indira Gandhi Medical College Shimla, Shimla, India
| | - Jyoti Pathania
- Department of Anaesthesia, Indira Gandhi Medical College Shimla, Shimla, India
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13
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Zhou L, Wiley BM. Current and Future Role of Ultrasonography in the Cardiac Intensive Care Unit. Crit Care Clin 2024; 40:15-35. [PMID: 37973351 DOI: 10.1016/j.ccc.2023.06.001] [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] [Indexed: 11/19/2023]
Abstract
The contemporary practice of ultrasonography in the cardiac intensive care unit integrates the principles of echocardiography with whole-body imaging to create a more expansive paradigm of critical care ultrasonography (CCUS). This article will review the use of CCUS for diagnostic assessment, monitoring, therapeutic guidance, and prognosis.
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Affiliation(s)
- Leon Zhou
- Department of Cardiology, Keck School of Medicine of University of Southern California, Los Angeles General Medical Center, Clinic Tower A6E108, 2051 Marengo Street, Los Angeles, CA 90033, USA
| | - Brandon M Wiley
- Department of Cardiology, Keck School of Medicine of University of Southern California, Los Angeles General Medical Center, Clinic Tower A6E108, 2051 Marengo Street, Los Angeles, CA 90033, USA.
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14
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Grotberg JC, McDonald RK, Co IN. Point-of-Care Echocardiography in the Difficult-to-Image Patient in the ICU: A Narrative Review. Crit Care Explor 2024; 6:e1035. [PMID: 38222871 PMCID: PMC10786596 DOI: 10.1097/cce.0000000000001035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2024] Open
Abstract
OBJECTIVES The objective of this narrative review was to address common obstacles encountered in the ICU to acquiring quality and interpretable images using point-of-care echocardiography. DATA SOURCES Detailed searches were performed using PubMed and Ovid Medline using medical subject headings and keywords on topics related to patient positioning, IV echo contrast, alternative subcostal views, right ventricular outflow tract (RVOT) hemodynamics, and point-of-care transesophageal echocardiography. Articles known to the authors were also selected based on expert opinion. STUDY SELECTION Articles specific to patient positioning, IV echo contrast, alternative subcostal views, RVOT hemodynamics, and point-of-care transesophageal echocardiography were considered. DATA EXTRACTION One author screened titles and extracted relevant data while two separate authors independently reviewed selected articles. DATA SYNTHESIS Impediments to acquiring quality and interpretable images in critically ill patients are common. Notably, body habitus, intra-abdominal hypertension, dressings or drainage tubes, postoperative sternotomies, invasive mechanical ventilation, and the presence of subcutaneous emphysema or lung hyperinflation are commonly encountered obstacles in transthoracic image acquisition in the ICU. Despite these obstacles, the bedside clinician may use obstacle-specific maneuvers to enhance image acquisition. These may include altering patient positioning, respiratory cycle timing, expanding the subcostal window to include multilevel short-axis views for use in the assessment of RV systolic function and hemodynamics, coronal transhepatic view of the inferior vena cava, and finally point-of-care transesophageal echocardiography. CONCLUSIONS Despite common obstacles to point-of-care echocardiography in critically ill patients, the beside sonographer may take an obstacle-specific stepwise approach to enhance image acquisition in difficult-to-image patients.
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Affiliation(s)
- John C Grotberg
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, Saint Louis, MO
| | - Rachel K McDonald
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, Saint Louis, MO
| | - Ivan N Co
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Michigan, Ann Arbor, MI
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15
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Gentile F, Buoncristiani F, Sciarrone P, Bazan L, Panichella G, Gasparini S, Chubuchny V, Taddei C, Poggianti E, Fabiani I, Petersen C, Lancellotti P, Passino C, Emdin M, Giannoni A. Left ventricular outflow tract velocity-time integral improves outcome prediction in patients with secondary mitral regurgitation. Int J Cardiol 2023; 392:131272. [PMID: 37604287 DOI: 10.1016/j.ijcard.2023.131272] [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: 07/20/2023] [Revised: 08/12/2023] [Accepted: 08/17/2023] [Indexed: 08/23/2023]
Abstract
AIMS Left ventricular outflow velocity-time integral (LVOT-VTI) has been shown to improve outcome prediction in different patients' subsets, with or without heart failure (HF). Nevertheless, the prognostic value of LVOT-VTI in patients with HF and secondary mitral regurgitation (MR) has never been investigated so far. Therefore, in the present study, we aimed to assess the prognostic value different metrics of LV forward output, including LVOT-VTI, in HF patients with secondary MR. METHODS AND RESULTS Consecutive patients with HF and moderate-to-severe/severe secondary MR and systolic dysfunction (i.e., left ventricular ejection fraction [LVEF] <50%) were retrospectively selected and followed-up for the primary endpoint of cardiac death. Out of the 287 patients analyzed (aged 74 ± 11 years, 70% men, 46% ischemic etiology, mean LVEF 30 ± 9%, mean LVOT-VTI 20 ± 5 cm), 71 met the primary endpoint over a 33-month median follow-up (16-47 months). Patients with an LVOT-VTI ≤17 cm (n = 96, 32%) showed the greatest risk of cardiac death (Log Rank 44.3, p < 0.001) and all-cause mortality (Log rank 8.6, p = 0.003). At multivariable regression analysis, all the measures of LV forward volume (namely LVOT-VTI, stroke volume index, cardiac output, and cardiac index) were predictors of poor outcomes. Among these, LVOT-VTI was the most accurate in risk prediction (univariable C-statistics 0.70 [95%CI 0.64-0.77]). CONCLUSION Left ventricular forward output, noninvasively estimated through LVOT-VTI, improves outcome prediction in HF patients with low LVEF and secondary MR.
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Affiliation(s)
- Francesco Gentile
- Health Science Interdisciplinary Center, Scuola Superiore Sant'Anna, Pisa, Italy
| | | | | | - Lorenzo Bazan
- Health Science Interdisciplinary Center, Scuola Superiore Sant'Anna, Pisa, Italy
| | - Giorgia Panichella
- Health Science Interdisciplinary Center, Scuola Superiore Sant'Anna, Pisa, Italy
| | - Simone Gasparini
- Health Science Interdisciplinary Center, Scuola Superiore Sant'Anna, Pisa, Italy
| | | | | | | | | | | | - Patrizio Lancellotti
- University of Liège Hospital, Cardiology Department, GIGA Cardiovascular Sciences, CHU Sart Tilman, Liège, Belgium; Gruppo Villa Maria Care and Research, Maria Cecilia Hospital, Cotignola, and Anthea Hospital, Bari, Italy
| | - Claudio Passino
- Health Science Interdisciplinary Center, Scuola Superiore Sant'Anna, Pisa, Italy; Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - Michele Emdin
- Health Science Interdisciplinary Center, Scuola Superiore Sant'Anna, Pisa, Italy; Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - Alberto Giannoni
- Health Science Interdisciplinary Center, Scuola Superiore Sant'Anna, Pisa, Italy; Fondazione Toscana Gabriele Monasterio, Pisa, Italy.
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16
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Salinas P, Sohn J, Díaz-Gómez JL. Critical Care Echocardiography-A Driven Approach to Undifferentiated Shock. Tex Heart Inst J 2023; 50:e228075. [PMID: 37849342 PMCID: PMC10658166 DOI: 10.14503/thij-22-8075] [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] [Indexed: 10/19/2023]
Abstract
The clinical approach to undifferentiated shock in critically ill patients should be revised to use modern, point-of-care tools that are readily available. With the increasing availability of 2-dimensional ultrasonography and advanced Doppler capabilities, a quick, simplified, and integrated stepwise approach to shock using critical care echocardiography is proposed. Evidence supports the feasibility and usefulness of critical care echo-cardiography in enhancing diagnostic accuracy for shock, but there is a lack of systematic application of the technology in patients with undifferentiated shock. The proposed approach begins with the use of noninvasive ultrasonography with pulsed-wave Doppler capability to determine the flow state by measuring the velocity time integral of the left ventricular outflow tract. This narrative review explores the use left ventricular outflow tract velocity time integral, velocity time integral variation, limited visceral organ Doppler, and lung ultrasonography as a systematic approach for patients with undifferentiated shock.
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Affiliation(s)
- Pedro Salinas
- Aurora Critical Care Services, St Luke's Medical Center, Milwaukee, Wisconsin
| | - Jacqueline Sohn
- Department of Cardiovascular Anesthesiology and Critical Care Medicine, Baylor St Luke's Medical Center–The Texas Heart Institute, Houston, Texas
| | - José L. Díaz-Gómez
- Department of Cardiovascular Anesthesiology and Critical Care Medicine, Baylor St Luke's Medical Center–The Texas Heart Institute, Houston, Texas
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17
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Guerrero-Gutiérrez MA, García-Guillén FJ, Adame-Encarnación H, Monera-Martínez F, Ñamendys-Silva SA, Córdova-Sánchez BM. Reliability of point-of-care ultrasound to evaluate fluid tolerance performed by critical care residents. Eur J Med Res 2023; 28:431. [PMID: 37828607 PMCID: PMC10571403 DOI: 10.1186/s40001-023-01397-9] [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: 09/21/2022] [Accepted: 09/25/2023] [Indexed: 10/14/2023] Open
Abstract
BACKGROUND Patients with hypotension usually receive intravenous fluids, but only 50% will respond to fluid administration. We aimed to assess the intra and interobserver agreement to evaluate fluid tolerance through diverse ultrasonographic methods. METHODS We prospectively included critically ill patients on mechanical ventilation. One trained intensivist and two intensive care residents obtained the left ventricular outflow tract velocity-time integral (VTI) variability, inferior vena cava (IVC) distensibility index, internal jugular vein (IJV) distensibility index, and each component of the venous excess ultrasound (VExUS) system. We obtained the intraclass correlation coefficient (ICC) and Gwet's first-order agreement coefficient (AC1), as appropriate. RESULTS We included 32 patients. In-training observers were unable to assess the VTI-variability in two patients. The interobserver agreement was moderate to evaluate the IJV-distensibility index (AC1 0.54, CI 95% 0.29-0.80), fair to evaluate VTI-variability (AC1 0.39, CI 95% 0.12-0.66), and absent to evaluate the IVC-distensibility index (AC1 0.19, CI 95% - 0.07 to 0.44). To classify patients according to their VExUS grade, the intraobserver agreement was good, and the interobserver agreement was moderate (AC1 0.52, CI 95% 0.34-0.69). CONCLUSIONS Point-of-care ultrasound is frequently used to support decision-making in fluid management. However, we observed that the VTI variability and IVC-distensibility index might require further training of the ultrasound operators to be clinically useful. Our findings suggest that the IJV-distensibility index and the VExUS system have acceptable reproducibility among in-training observers.
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Affiliation(s)
| | | | | | | | - Silvio A Ñamendys-Silva
- Instituto Nacional de Cancerología, San Fernando #22, Tlalpan, Mexico City, Mexico
- Instituto Nacional de Ciencias Medicas y de la Nutricion Salvador Zubiran, Mexico City, Mexico
- Hospital Medica Sur, Mexico City, Mexico
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18
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Villavicencio C, Daniel X, Cartanyá M, Leache J, Ferré C, Roure M, Bodí M, Vives M, Rodriguez A. CARDIAC OUTPUT IN CRITICALLY ILL PATIENTS CAN BE ESTIMATED EASILY AND ACCURATELY USING THE MINUTE DISTANCE OBTAINED BY PULSED-WAVE DOPPLER. Shock 2023; 60:553-559. [PMID: 37698504 DOI: 10.1097/shk.0000000000002210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/13/2023]
Abstract
ABSTRACT Background: Cardiac output (CO) assessment is essential for management of patients with circulatory failure. Among the different techniques used for their assessment, pulsed-wave Doppler cardiac output (PWD-CO) has proven to be an accurate and useful tool. Despite this, assessment of PWD-CO could have some technical difficulties, especially in the measurement of left ventricular outflow tract diameter (LVOTd). The use of a parameter such as minute distance (MD) which avoids LVOTd in the PWD-CO formula could be a simple and useful way to assess the CO in critically ill patients. Therefore, the aim of this study was to evaluate the correlation and agreement between PWD-CO and MD. Methods: A prospective and observational study was conducted over 2 years in a 30-bed intensive care unit (ICU). Adult patients who required CO monitoring were included. Clinical echocardiographic data were collected within the first 24 h and at least once more during the first week of ICU stay. PWD-CO was calculated using the average value of three LVOTd and left ventricular outflow tract velocity-time integral (LVOT-VTI) measurements, and heart rate. Minute distance was obtained from the product of LVOT-VTI × heart rate. Pulsed-wave Doppler cardiac output was correlated with MD using linear regression. Cardiac output was quantified from the MD using the equation defined by linear regression. Bland-Altman analysis was also used to evaluate the level of agreement between CO calculated from MD (MD-CO) and PWD-CO. The percentage error was calculated. Results: A total of 98 patients and 167 CO measurements were analyzed. Sixty-seven (68%) were male, the median age was 66 years (interquartile range [IQR], 53-75 years), and the median Acute Physiology and Chronic Health Evaluation II score was 22 (IQR, 16-26). The most common cause of admission was shock in 81 patients (82.7%). Sixty-nine patients (70.4%) were mechanically ventilated, and 68 (70%) required vasoactive drugs. The median CO was 5.5 L/min (IQR, 4.8-6.6 L/min), and the median MD was 1,850 cm/min (IQR, 1,520-2,160 cm/min). There was a significant correlation between PWD-CO and MD-CO in the general population ( R2 = 0.7; P < 0.05). This correlation improved when left ventricular ejection fraction (LVEF) was less than 60% ( R2 = 0.85, P < 0.05). Bland-Altman analysis showed good agreement between PWD-CO and MD-CO in the general population, the median bias was 0.02 L/min, the limits of agreement were -1.92 to +1.92 L/min. The agreement was better in patients with LVEF less than 60% with a median bias of 0.005 L/min and limits of agreement of -1.56 to 1.55 L/min. The percentage error was 17% in both cases. Conclusion: Measurement of MD in critically ill patients provides a simple and accurate estimate of CO, especially in patients with reduced or preserved LVEF. This would allow earlier cardiovascular assessment in patients with circulatory failure, which is of particular interest in difficult clinical or technical conditions.
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Affiliation(s)
| | - Xavier Daniel
- Critical Care Department, Joan XXIII - University Hospital, Tarragona, Spain
| | - Marc Cartanyá
- Critical Care Department, Joan XXIII - University Hospital, Tarragona, Spain
| | - Julen Leache
- Critical Care Department, Joan XXIII - University Hospital, Tarragona, Spain
| | - Cristina Ferré
- Critical Care Department, Joan XXIII - University Hospital, Tarragona, Spain
| | - Marina Roure
- Critical Care Department, Joan XXIII - University Hospital, Tarragona, Spain
| | - María Bodí
- Critical Care Department, Hospital Universitari Joan XXIII, URV/IISPV/CIBERES, 43005 Tarragona, Spain
| | - Marc Vives
- Department of Anesthesiology & Critical Care, Clínica Universidad de Navarra, Universidad de Navarra, Av. Pio XII, 36. 31008 Pamplona, Navarra, Spain
| | - Alejandro Rodriguez
- Critical Care Department, Hospital Universitari Joan XXIII, URV/IISPV/CIBERES, 43005 Tarragona, Spain
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19
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Ye D, Gao Z, Ye F, Li L, Chen F, Chen X. Consistency of transesophageal echocardiography and angiography in grading paravalvular regurgitation during transcatheter aortic valve replacement. Echocardiography 2023; 40:1040-1047. [PMID: 37548045 DOI: 10.1111/echo.15669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 07/09/2023] [Accepted: 07/27/2023] [Indexed: 08/08/2023] Open
Abstract
BACKGROUND The Valve Academic Research Consortium 3 (VARC-3) standardizes the classification criteria and Doppler parameters for paravalvular regurgitation (PVR) by echocardiography. However, the consistency between transesophageal echocardiography (TEE) and angiography in grading (using the VARC-3 criteria) of PVR during transcatheter aortic valve replacement (TAVR) is unclear. METHODS Forty-six patients who underwent TEE and angiography during TAVR were retrospectively included. All patients had complete baseline information, TEE and angiography data. The Doppler parameters measured by TEE included the circumferential extent of PVR, regurgitation volume, regurgitation fraction, and the effective regurgitant orifice area. PVR was classified into four grades: absent, mild, moderate and severe. The weighted kappa coefficient was used to analyze the consistency between the two techniques. Kendall's W coefficient was used to evaluate the consistency of parameters measured by TEE. RESULTS Among all patients, there were 43 cases (93.5%) with consistent assessments between TEE and angiography. PVR was observed in 19 cases. TEE assessed mild PVR in 17 cases and moderate PVR in two cases; Angiography assessed mild PVR in 14 cases and moderate PVR in two cases. The weighted kappa coefficient between angiography and the circumferential extent of PVR, regurgitation volume, regurgitation fraction, and the effective regurgitant orifice area respectively was .84, .79, .74, .85 (P < .001). Kendall's W coefficient was .83 (P < .001). CONCLUSIONS TEE and angiography had strong consistency in the grading (using the VARC-3 criteria) of PVR during TAVR. TEE was a convenient diagnostic tool to quantify and grade PVR during TAVR.
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Affiliation(s)
- Dalin Ye
- Department of Ultrasound, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Ziqing Gao
- Department of Ultrasound, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Feile Ye
- Department of Ultrasound, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Liujun Li
- Department of Ultrasound, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Fei Chen
- Department of Ultrasound, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Xiaobo Chen
- Department of Ultrasound, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
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20
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Karasu BB, Emekli E. The Relationship of Renal Augmented Velocity Index With Ventricular-Arterial Coupling in Comparison to Renal Resistive Index: Analysis by Means of Arterial and Ventricular Elastances in Hypertensive Patients. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2023; 42:2143-2154. [PMID: 37310113 DOI: 10.1002/jum.16285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 05/08/2023] [Accepted: 05/21/2023] [Indexed: 06/14/2023]
Abstract
OBJECTIVE It's a well-known scientific statement that the heart and kidney functions are frequently tied together and the impairment of one directly alters the other. However, there exist knowledge gaps about this intricate pathophysiologic link and the exact unifying mechanism is not established. Herein, we aimed to investigate the presence of cardiorenal interaction at subclinical level while the conventional cardiac and renal clinical parameters are not disrupted yet in patients with hypertension. METHODS We chose a novel renal Doppler ultrasonographic parameter-augmented velocity index (Avi)-and an echocardiographic measure-ventriculoarterial coupling-which is complex to analyze but increasingly used after its acceptance about being a key determinant of cardiovascular efficiency. We recruited 137 patients without a previous history of antihypertensive medication use (47.4% women; median age, 49 years). Renal Avi, renal resistive index (RI), arterial elastance (Ea ), ventricular elastance (Ees ) and Ea /Ees (ventriculoarterial coupling) parameters were all examined. RESULTS Renal Avi, Ea , and Ea /Ees values were higher in females. Correlation analysis revealed that renal Avi was correlated with many hemodynamic variables including Ea and Ea /Ees . On multiple linear regression analysis, Ea and Ea /Ees remained as significant independent predictors of renal Avi but not of renal RI after adjustments for co-variables (β = 0.488, P < .001 for Ea ; β = 0.380, P < .001 for Ea /Ees ). CONCLUSIONS In comparison to renal RI, we suggest that renal Avi is a more reliable and promising index that can even measure subclinical changes in the cardiorenal circulation which needs to be elucidated.
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Affiliation(s)
- Betul Banu Karasu
- Department of Cardiology, Etimesgut Sehit Sait Erturk State Hospital, Ankara, Turkey
| | - Emre Emekli
- Department of Radiology, Etimesgut Sehit Sait Erturk State Hospital, Ankara, Turkey
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21
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Hashim L, Vari D, Bhat AM, Tsuda T. Adaptive Growth of the Ductus Arteriosus and Aortic Isthmus in Various Ductus-Dependent Complex Congenital Heart Diseases. Pediatr Cardiol 2023:10.1007/s00246-023-03236-4. [PMID: 37477699 DOI: 10.1007/s00246-023-03236-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 07/06/2023] [Indexed: 07/22/2023]
Abstract
BACKGROUND The ductus arteriosus (DA) is critical in maintaining postnatal circulation in neonates with obstructed systemic circulation (OSC) and pulmonary circulation (OPC). We hypothesized that the size of the DA and aortic isthmus (AoI) undergoes adaptive growth in utero to counteract the hemodynamic challenges in these congenital heart diseases (CHD). METHODS Postnatal echocardiograms of neonates diagnosed prenatally with ductal-dependent CHD who were started on prostaglandins within 24 h of birth were reviewed. We assessed the cross-sectional area of the aortic valve opening, pulmonary valve opening, AoI, and DA by calculating (diameter)2/body surface area. Neonates were classified into OSC or OPC then subgrouped depending upon the patency of semilunar valves: OSC with and without aortic atresia (OSC-AA and OSC-nAA, respectively) and OPC with and without pulmonary atresia (OPC-PA and OPC-nPA, respectively). RESULTS Ninety-four cases were studied. The DA in OSC was significantly larger than OPC, and the DA in OSC-AA was significantly larger than OSC-nAA. The size of the AoI was significantly larger in OPC than OSC and larger in OSC-AA than OSC-nAA. Within the OSC-nAA group, there was no significant difference in the size of the DA, AoI, or pulmonary valve opening between those with retrograde flow (RF) at the AoI and without (nRF) except the aortic valve opening was significantly larger in nRF. All groups had comparable cross-sectional areas of systemic output. CONCLUSIONS Our findings suggest that DA and AoI show compensatory growth to maintain critical blood flow to vital organs against primary anatomical abnormalities in ductus-dependent CHD. (249 words).
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Affiliation(s)
- Liza Hashim
- Nemours Cardiac Center, Nemours Children's Health, 1600 Rockland Rd, Wilmington, DE, 19803, USA
- Department of Pediatrics, Division of Pediatric Cardiology, University of Virginia Children's Hospital, 1204 W. Main St, Charlottesville, VA, 22903, USA
| | - Daniel Vari
- Nemours Cardiac Center, Nemours Children's Health, 1600 Rockland Rd, Wilmington, DE, 19803, USA
- Cincinnati Children's Hospital Medical Center, The Heart Institute, 3333 Burnet Ave, Cincinnati, OH, 45229, USA
| | - Abdul M Bhat
- Nemours Cardiac Center, Nemours Children's Health, 1600 Rockland Rd, Wilmington, DE, 19803, USA
- Department of Pediatrics, Sidney Kimmel Medical College at Thomas Jefferson University, 1025 Walnut St. #100, Philadelphia, PA, 19107, USA
| | - Takeshi Tsuda
- Nemours Cardiac Center, Nemours Children's Health, 1600 Rockland Rd, Wilmington, DE, 19803, USA.
- Department of Pediatrics, Sidney Kimmel Medical College at Thomas Jefferson University, 1025 Walnut St. #100, Philadelphia, PA, 19107, USA.
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22
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Sández I, Redondo JI, Donati PA, Gómez J. Haemodynamic Effects of Pimobendan during General Anaesthesia in Healthy Senior Dogs: A Prospective, Randomised, Triple-Blinded, Placebo-Controlled Clinical Study. Animals (Basel) 2023; 13:2110. [PMID: 37443908 DOI: 10.3390/ani13132110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/10/2023] [Accepted: 06/24/2023] [Indexed: 07/15/2023] Open
Abstract
Pimobendan is an inotropic and vasodilator drug with no sympathomimetic effects. This study aimed to evaluate the haemodynamic effects of pimobendan during anaesthesia in healthy senior dogs. A prospective, randomised, triple-blinded, placebo-controlled clinical study was conducted. Thirty-three dogs (median [range]: 9 [7, 12] years) were anaesthetised for surgical procedures. The dogs were randomly allocated into two groups: eighteen dogs received intravenous pimobendan at a dose of 0.15 mg/kg (PIMOBENDAN), and fifteen dogs received intravenous saline solutions at a dose of 0.2 mL/kg (PLACEBO). Data were recorded before, 1 min, 10 min, and 20 min after injection. Velocity-time integral (VTI), peak-velocity (PV), and mean-acceleration (MA) were measured using an oesophageal Doppler monitor (ODM). Heart rate and mean arterial pressure were also registered. The data were analysed using a two-way ANOVA for trimmed means. Statistical differences were considered if p < 0.05. Twenty minutes after injection, the VTI (13.0 cm [10.4, 22.3]), PV (95.0 [83.0, 160] m/s), and MA (12.6 [9.40, 17.0] m/s2) were significantly higher in the PIMOBENDAN group compared to the PLACEBO group (VTI: 10.5 [6.50, 17.4] cm, PV: 80.0 [62.0, 103] m/s and MA: 10.2 [7.00, 16.0] ms2). No significant differences were observed in the rest of the variables. Using pimobendan during anaesthesia increases VTI, PV, and MA, as measured by an ODM.
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Affiliation(s)
- Ignacio Sández
- Department of Anesthesiology and Pain Management, Hospital Veterinario AniCura-Vetsia, Leganés, 28914 Madrid, Spain
| | - José I Redondo
- Departamento de Medicina y Cirugía Animal, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, 46115 Valencia, Spain
| | - Pablo A Donati
- Department of Anaesthesiology and Pain Management, Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, Buenos Aires 1427, Argentina
| | - José Gómez
- AniCura Iberia Medical Department, 28006 Madrid, Spain
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23
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Piura E, Engel O, Doctory N, Arbib N, Biron-Shental T, Kovo M, Arnon S, Markovitch O. Velocity Time Integral: A Novel Method for Assessing Fetal Anemia. CHILDREN (BASEL, SWITZERLAND) 2023; 10:1090. [PMID: 37508587 PMCID: PMC10377850 DOI: 10.3390/children10071090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 06/04/2023] [Accepted: 06/19/2023] [Indexed: 07/30/2023]
Abstract
The velocity time integral (VTI) is a clinical Doppler ultrasound measurement of blood flow, measured by the area under the wave curve and equivalent to the distance traveled by the blood. This retrospective study assessed the middle cerebral artery (MCA) VTI of fetuses in pregnancies complicated by maternal alloimmunization. Doppler indices of the MCA were retrieved from electronic medical records. Systolic deceleration-diastolic time, systolic acceleration time, VTI, and peak systolic velocity (PSV) were measured at 16-40 weeks gestation. Cases with PSV indicating fetal anemia (cutoff 1.5 MoM) and normal PSV were compared. The study included 255 Doppler ultrasound examinations. Of these, 41 were at 16-24 weeks (group A), 100 were at 25-32 weeks (group B), and 114 were at 33-40 weeks (group C). VTI increased throughout gestation (5.5 cm, 8.6 cm, and 12.1 cm in groups A, B, and C, respectively, p = 0.003). VTI was higher in waveforms calculated to have MCA-PSV ≥ 1.5 MoM compared to those with MCA-PSV < 1.5 MoM (9.1 cm vs. 14.1 cm, respectively, p < 0.001), as was VTI/s (22.04 cm/s vs. 33.75 cm/s, respectively; p < 0.001). The results indicate that the MCA VTI increases significantly among fetuses with suspected anemia, indicating higher perfusion of hemodiluted blood to the brain. This feasible measurement might provide a novel additional marker for the development of fetal anemia.
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Affiliation(s)
- Ettie Piura
- Department of Obstetrics and Gynecology, Meir Medical Center, Kfar Saba 4428164, Israel
- Sackler School of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Offra Engel
- Department of Obstetrics and Gynecology, Meir Medical Center, Kfar Saba 4428164, Israel
- Sackler School of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Neta Doctory
- Sackler School of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Nisim Arbib
- Department of Obstetrics and Gynecology, Meir Medical Center, Kfar Saba 4428164, Israel
- Sackler School of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Tal Biron-Shental
- Department of Obstetrics and Gynecology, Meir Medical Center, Kfar Saba 4428164, Israel
- Sackler School of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Michal Kovo
- Department of Obstetrics and Gynecology, Meir Medical Center, Kfar Saba 4428164, Israel
- Sackler School of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Shmuel Arnon
- Sackler School of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
- Department of Neonatology, Meir Medical Center, Kfar Saba 4428164, Israel
| | - Ofer Markovitch
- Department of Obstetrics and Gynecology, Meir Medical Center, Kfar Saba 4428164, Israel
- Sackler School of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
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24
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Cheong I, Castro VO, Gómez RA, Merlo PM, Tamagnone FM. A modified subcostal view: a novel method for measuring the LVOT VTI. J Ultrasound 2023; 26:429-434. [PMID: 35449385 PMCID: PMC10247580 DOI: 10.1007/s40477-022-00671-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 02/21/2022] [Indexed: 01/31/2023] Open
Abstract
PURPOSE The velocity time integral (VTI) of the left ventricular outflow tract (LVOT) obtained in the apical view by echocardiography can be regarded as a surrogate for the stroke volume. In critically ill patients it is often difficult to obtain an appropriate apical view to assess the VTI. The subcostal view is more accessible, but while it allows a qualitative assessment of the heart, is not adequate for estimating a reliable LVOT VTI, given the inappropriate angle between the Doppler signal and the flow through the LVOT. We present a new modified subcostal view that allows a proper LVOT VTI measurement. METHODS This is a single-centre experimental, retrospective, and observational study using data from patients in a tertiary-care centre. We included adult patients admitted to the intensive care unit in the period from June 2020 to January 2022, who were evaluated by echocardiography and whose LVOT VTI was measured aligned with the Doppler signal in both the apical five-chamber view and the modified subcostal view. RESULTS A total of 30 patients were evaluated in the study period by ultrasonography. The Bland-Altman method analysis of the LVOT VTI measured in the apical view compared with that obtained in the subcostal view showed a bias of 0.8 (95% CI 0.39-1.21) with a 95% limit of agreement between - 1.35 (95% CI - 2.06 to - 0.64) and 2.96 (95% CI 2.25-3.67). The percentage error was calculated to be 23%. The Pearson correlation coefficient for the two forms of measurements showed an R value of 0.98 (95% CI 0.96-0.99). CONCLUSION The LVOT VTI measured in a modified subcostal view is useful for estimating the value of the LVOT VTI obtained in an apical view.
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Affiliation(s)
- Issac Cheong
- Department of Critical Care Medicine, Intensive Care Unit, CABA, Sanatorio De los Arcos, Juan B. Justo 909, Buenos Aires, Argentina.
- Argentinian Critical Care Ultrasonography Association (ASARUC), Buenos Aires, Argentina.
| | - Victoria Otero Castro
- Department of Critical Care Medicine, Intensive Care Unit, CABA, Sanatorio De los Arcos, Juan B. Justo 909, Buenos Aires, Argentina
| | - Raúl Alejandro Gómez
- Department of Critical Care Medicine, Intensive Care Unit, CABA, Sanatorio De los Arcos, Juan B. Justo 909, Buenos Aires, Argentina
| | - Pablo Martín Merlo
- Argentinian Critical Care Ultrasonography Association (ASARUC), Buenos Aires, Argentina
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25
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Blanca D, Schwarz EC, Olgers TJ, Ter Avest E, Azizi N, Bouma HR, Ter Maaten JC. Intra-and inter-observer variability of point of care ultrasound measurements to evaluate hemodynamic parameters in healthy volunteers. Ultrasound J 2023; 15:22. [PMID: 37145390 PMCID: PMC10163179 DOI: 10.1186/s13089-023-00322-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 04/13/2023] [Indexed: 05/06/2023] Open
Abstract
BACKGROUND Point-of-care ultrasound (POCUS) is a valuable tool for assessing the hemodynamic status of acute patients. Even though POCUS often uses a qualitative approach, quantitative measurements have potential advantages in evaluating hemodynamic status. Several quantitative ultrasound parameters can be used to assess the hemodynamic status and cardiac function. However, only limited data on the feasibility and reliability of the quantitative hemodynamic measurements in the point-of-care setting are available. This study investigated the intra- and inter-observer variability of PoCUS measurements of quantitative hemodynamic parameters in healthy volunteers. METHODS In this prospective observational study, three sonographers performed three repeated measurements of eight different hemodynamic parameters in healthy subjects. An expert panel of two experienced sonographers evaluated the images' quality. The repeatability (intra-observer variability) was determined by calculating the coefficient of variation (CV) between the separate measurements for each observer. The reproducibility (inter-observer variability) was assessed by determining the intra-class correlation coefficient (ICC). RESULTS 32 subjects were included in this study, on whom, in total, 1502 images were obtained for analysis. All parameters were in a normal physiological range. Stroke volume (SV), cardiac output (CO), and inferior vena cava diameter (IVC-D) showed high repeatability (CV under 10%) and substantial reproducibility (ICC 0.61-0.80). The other parameters had only moderate repeatability and reproducibility. CONCLUSIONS We demonstrated good inter-observer reproducibility and good intra-observer repeatability for CO, SV and IVC-D taken in healthy subjects by emergency care physicians.
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Affiliation(s)
- Deborah Blanca
- Department of Internal Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
- Department of Internal Medicine, Ospedale Maggiore Policlinico, Università Degli Studi di Milano, Milan, Italy.
| | - Esther C Schwarz
- Department of Internal Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Tycho Joan Olgers
- Department of Internal Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Ewoud Ter Avest
- Department of Emergency Medicine, University Medical Centre Groningen, Groningen, The Netherlands
| | - Nasim Azizi
- Department of Emergency Medicine, University Medical Centre Groningen, Groningen, The Netherlands
| | - Hjalmar R Bouma
- Department of Internal Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Department of Clinical Pharmacy and Pharmacology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Jan Cornelis Ter Maaten
- Department of Internal Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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26
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Cheong I, Otero Castro V, Sosa FA, Tort Oribe B, Merlo PM, Tamagnone FM. Carotid flow as a surrogate of the left ventricular stroke volume. J Clin Monit Comput 2023; 37:661-667. [PMID: 36399216 DOI: 10.1007/s10877-022-00938-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 10/23/2022] [Indexed: 11/19/2022]
Abstract
Transthoracic echocardiography (TTE) is a fundamental tool for hemodynamic monitoring in critical patients. It allows evaluating the left ventricle's stroke volume based on the measurement of the velocity-time integral (VTI) of the left ventricle outflow tract (LVOT). However, in the intensive care unit obtaining adequate echocardiographic views may present a challenge. We propose to measure, as a surrogate of the stroke volume, the carotid flow with a novel technique. This is an observational, prospective, and simple blind study, conducted in the intensive care unit of Sanatorio de los Arcos and Hospital Aleman, in Buenos Aires, Argentina. We measured the carotid systodiastolic flow (CSD) VTI and the carotid systolic flow (CS) VTI at the level of the left supraclavicular fossa and we compared it with the LVOT VTI obtained by TTE. We evaluated 43 subjects. Spearman's correlation coefficient between LVOT VTI and CS VTI was 0.81 (95% CI 0.67-0.89) and between LVOT VTI and CSD VTI was 0.89 (95% CI 0.81-0.94). The Bland-Altman method analysis of the 5-chamber apical window LVOT VTI compared to the CSD VTI showed a bias of - 0.2 (95% CI - 0.82 to 0.43), with a concordance interval between - 4.2 (95% CI - 5.2 to - 3.1) and 3.8 cm (95% CI 2.7 to 4.9). The percentage error was 37.9%. Almost 100% of the values fell within the concordance limits, and no trend was observed in bias across the spectrum of mean variables. Although the CSD VTI could not be interchangeable with the LVOT VTI, it could be considered as its surrogate.
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Affiliation(s)
- Issac Cheong
- Department of Critical Care Medicine, Sanatorio de los Arcos, Buenos Aires, Argentina.
- Argentinian Critical Care Ultrasonography Association (ASARUC), Buenos Aires, Argentina.
| | - Victoria Otero Castro
- Department of Critical Care Medicine, Sanatorio de los Arcos, Buenos Aires, Argentina
| | - Fernando Ariel Sosa
- Argentinian Critical Care Ultrasonography Association (ASARUC), Buenos Aires, Argentina
- Department of Critical Care Medicine, Hospital Aleman, Buenos Aires, Argentina
| | - Bárbara Tort Oribe
- Department of Critical Care Medicine, Hospital Aleman, Buenos Aires, Argentina
| | - Pablo Martín Merlo
- Argentinian Critical Care Ultrasonography Association (ASARUC), Buenos Aires, Argentina
- Hospital de Agudos Bernardino Rivadavia, Buenos Aires, Argentina
| | - Francisco Marcelo Tamagnone
- Argentinian Critical Care Ultrasonography Association (ASARUC), Buenos Aires, Argentina
- Hospital Militar Campo de Mayo, Buenos Aires, Argentina
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27
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Polyzogopoulou E, Bezati S, Karamasis G, Boultadakis A, Parissis J. Early Recognition and Risk Stratification in Cardiogenic Shock: Well Begun Is Half Done. J Clin Med 2023; 12:2643. [PMID: 37048727 PMCID: PMC10095596 DOI: 10.3390/jcm12072643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/24/2023] [Accepted: 03/29/2023] [Indexed: 04/05/2023] Open
Abstract
Cardiogenic shock is a complex syndrome manifesting with distinct phenotypes depending on the severity of the primary cardiac insult and the underlying status. As long as therapeutic interventions fail to divert its unopposed rapid evolution, poor outcomes will continue challenging health care systems. Thus, early recognition in the emergency setting is a priority, in order to avoid delays in appropriate management and to ensure immediate initial stabilization. Since advanced therapeutic strategies and specialized shock centers may provide beneficial support, it seems that directing patients towards the recently described shock network may improve survival rates. A multidisciplinary approach strategy commands the interconnections between the strategic role of the ED in affiliation with cardiac shock centers. This review outlines critical features of early recognition and initial therapeutic management, as well as the utility of diagnostic tools and risk stratification models regarding the facilitation of patient trajectories through the shock network. Further, it proposes the implementation of precise criteria for shock team activation and the establishment of definite exclusion criteria for streaming the right patient to the right place at the right time.
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Affiliation(s)
- Effie Polyzogopoulou
- Emergency Department, Attikon University Hospital, National and Kapodistrian University of Athens, Rimini 1, Chaidari, 12462 Athens, Greece
| | - Sofia Bezati
- Emergency Department, Attikon University Hospital, National and Kapodistrian University of Athens, Rimini 1, Chaidari, 12462 Athens, Greece
| | - Grigoris Karamasis
- Second Department of Cardiology, Medical School, Attikon University Hospital, National and Kapodistrian University of Athens, 12462 Athens, Greece
| | - Antonios Boultadakis
- Emergency Department, Attikon University Hospital, National and Kapodistrian University of Athens, Rimini 1, Chaidari, 12462 Athens, Greece
| | - John Parissis
- Emergency Department, Attikon University Hospital, National and Kapodistrian University of Athens, Rimini 1, Chaidari, 12462 Athens, Greece
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28
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Weber MD, Lim JKB, Ginsburg S, Conlon T, Nishisaki A. Translating Guidelines into Practical Practice: Point-of-Care Ultrasound for Pediatric Critical Care Clinicians. Crit Care Clin 2023; 39:385-406. [PMID: 36898781 DOI: 10.1016/j.ccc.2022.09.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Point-of-care ultrasound (POCUS) is now transitioning from an emerging technology to a standard of care for critically ill children. POCUS can provide immediate answers to clinical questions impacting management and outcomes within this fragile population. Recently published international guidelines specific to POCUS use in neonatal and pediatric critical care populations now complement previous Society of Critical Care Medicine guidelines. The authors review consensus statements within guidelines, identify important limitations to statements, and provide considerations for the successful implementation of POCUS in the pediatric critical care setting.
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Affiliation(s)
- Mark D Weber
- Division of Critical Care Medicine, Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA 19104, USA.
| | - Joel K B Lim
- Children's Intensive Care Unit, Department of Pediatric Subspecialties, KK Women's and Children's Hospital, Singapore
| | - Sarah Ginsburg
- Division of Critical Care Medicine, Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Thomas Conlon
- Division of Critical Care Medicine, Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Akira Nishisaki
- Division of Critical Care Medicine, Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA 19104, USA
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29
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Devangam S, Sigakis M, Palmer LJ, Goeddel L, Fiza B. Point-of-Care Ultrasound: A Moving Picture Is Worth a Thousand Tests. Anesthesiol Clin 2023; 41:231-248. [PMID: 36872001 DOI: 10.1016/j.anclin.2022.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
The effective utilization of point-of-care ultrasound may decrease the utilization of conventional diagnostic modalities. This review describes the various pathologies that can be effectively and rapidly identified with point-of-care cardiac, lung, abdominal, vascular airway, and ocular ultrasonography.
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Affiliation(s)
- Suhas Devangam
- Department of Anesthesiology, Division of Critical Care, University of Michigan Medical School, 1500 East Medical Center Drive, Ann Arbor, MI 48109-5048, USA
| | - Matthew Sigakis
- Department of Anesthesiology, Division of Critical Care, University of Michigan Medical School, 1500 East Medical Center Drive, Ann Arbor, MI 48109-5048, USA
| | - Louisa J Palmer
- Department of Anesthesiology, Division of Critical Care, Brigham and Women's Hospital, 75 Francis Street, Boston MA 02115, USA
| | - Lee Goeddel
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Bloomberg 6320, 1800 Orleans Street, Baltimore, MD, USA 21287
| | - Babar Fiza
- Department of Anesthesiology, Division of Critical Care Medicine, Emory School of Medicine, 1364 Clifton Road Northeast, Atlanta, GA 30322, USA.
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30
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Ruddy J, Santee K. A Rare Case of Cardiogenic Shock Induced by Choking. Chest 2023; 163:e91-e95. [PMID: 36759124 DOI: 10.1016/j.chest.2022.02.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 01/06/2022] [Accepted: 02/17/2022] [Indexed: 02/10/2023] Open
Affiliation(s)
- Jonah Ruddy
- UNECOM / Kent Emergency Medicine Residency Program, Warwick, RI.
| | - Kyle Santee
- UNECOM / Kent Emergency Medicine Residency Program, Warwick, RI
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31
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Management of Cardiogenic Shock Unrelated to Acute Myocardial Infarction. Can J Cardiol 2023; 39:406-419. [PMID: 36731605 DOI: 10.1016/j.cjca.2023.01.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 01/18/2023] [Accepted: 01/19/2023] [Indexed: 02/01/2023] Open
Abstract
Cardiogenic shock is an extreme manifestation of acute decompensated heart failure. Cardiogenic shock is often caused by-and has traditionally been studied in the setting of-acute myocardial infarction (AMI CS); however, there is increasing incidence and recognition of cardiogenic shock not associated with acute myocardial infarction (non-AMI CS) as a distinct entity. Despite decades of study and technologic advancements, cardiogenic shock mortality remains as high as 50%, regardless of etiology. New approaches to shock phenotyping and classification have emerged, with a focus on appropriately matching patient physiology to a growing list of available interventions. Further study is needed to determine whether these efforts will lead to more nuanced use of mechanical circulatory support and improved patient outcomes, especially in non-AMI CS. In the meantime, models of care incorporating multidisciplinary decision making, such as shock teams, may improve patient selection and outcomes.
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32
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Kenny JES. A theoretical foundation for relating the velocity time integrals of the left ventricular outflow tract and common carotid artery. J Clin Monit Comput 2023; 37:937-939. [PMID: 36625983 PMCID: PMC10175385 DOI: 10.1007/s10877-022-00969-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Accepted: 12/28/2022] [Indexed: 01/11/2023]
Affiliation(s)
- Jon-Emile S Kenny
- Health Sciences North Research Institute, 56 Walford Rd, Sudbury, ON, P3E 2H2, Canada. .,Flosonics Medical, Toronto, ON, Canada.
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33
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Cavaliere F, Biancofiore G, Bignami E, DE Robertis E, Giannini A, Grasso S, McCREDIE VA, Piastra M, Scolletta S, Taccone FS, Terragni P. A year in review in Minerva Anestesiologica 2022: critical care. Minerva Anestesiol 2023; 89:115-124. [PMID: 36745125 DOI: 10.23736/s0375-9393.22.17211-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Franco Cavaliere
- IRCCS A. Gemelli University Polyclinic Foundation, Sacred Heart Catholic University, Rome, Italy -
| | - Gianni Biancofiore
- Department of Transplant Anesthesia and Critical Care, University School of Medicine, Pisa, Italy
| | - Elena Bignami
- Division of Anesthesiology, Critical Care and Pain Medicine, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Edoardo DE Robertis
- Section of Anesthesia, Analgesia and Intensive Care, Department of Surgical and Biomedical Sciences, University of Perugia, Perugia, Italy
| | - Alberto Giannini
- Unit of Pediatric Anesthesia and Intensive Care, Children's Hospital - ASST Spedali Civili di Brescia, Brescia, Italy
| | - Salvatore Grasso
- Section of Anesthesiology and Intensive Care, Department of Emergency and Organ Transplantation, Polyclinic Hospital, Aldo Moro University, Bari, Italy
| | - Victoria A McCREDIE
- Interdepartmental Division of Critical Care, University of Toronto, Toronto, ON, Canada
| | - Marco Piastra
- Unit of Pediatric Intensive Care and Trauma Center, IRCCS A. Gemelli University Polyclinic Foundation, Sacred Heart Catholic University, Rome, Italy
| | - Sabino Scolletta
- Department of Emergency-Urgency and Organ Transplantation, Anesthesia and Intensive Care, University Hospital of Siena, Siena, Italy
| | - Fabio S Taccone
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Pierpaolo Terragni
- Division of Anesthesia and General Intensive Care, Department of Medical, Surgical and Experimental Sciences, University Hospital of Sassari, University of Sassari, Sassari, Italy
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Shaikh F, Kenny JE, Awan O, Markovic D, Friedman O, He T, Singh S, Yan P, Qadir N, Barjaktarevic I. Measuring the accuracy of cardiac output using POCUS: the introduction of artificial intelligence into routine care. Ultrasound J 2022; 14:47. [DOI: 10.1186/s13089-022-00301-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 12/07/2022] [Indexed: 12/15/2022] Open
Abstract
Abstract
Background
Shock management requires quick and reliable means to monitor the hemodynamic effects of fluid resuscitation. Point-of-care ultrasound (POCUS) is a relatively quick and non-invasive imaging technique capable of capturing cardiac output (CO) variations in acute settings. However, POCUS is plagued by variable operator skill and interpretation. Artificial intelligence may assist healthcare professionals obtain more objective and precise measurements during ultrasound imaging, thus increasing usability among users with varying experience. In this feasibility study, we compared the performance of novice POCUS users in measuring CO with manual techniques to a novel automation-assisted technique that provides real-time feedback to correct image acquisition for optimal aortic outflow velocity measurement.
Methods
28 junior critical care trainees with limited experience in POCUS performed manual and automation-assisted CO measurements on a single healthy volunteer. CO measurements were obtained using left ventricular outflow tract (LVOT) velocity time integral (VTI) and LVOT diameter. Measurements obtained by study subjects were compared to those taken by board-certified echocardiographers. Comparative analyses were performed using Spearman’s rank correlation and Bland–Altman matched-pairs analysis.
Results
Adequate image acquisition was 100% feasible. The correlation between manual and automated VTI values was not significant (p = 0.11) and means from both groups underestimated the mean values obtained by board-certified echocardiographers. Automated measurements of VTI in the trainee cohort were found to have more reproducibility, narrower measurement range (6.2 vs. 10.3 cm), and reduced standard deviation (1.98 vs. 2.33 cm) compared to manual measurements. The coefficient of variation across raters was 11.5%, 13.6% and 15.4% for board-certified echocardiographers, automated, and manual VTI tracing, respectively.
Conclusions
Our study demonstrates that novel automation-assisted VTI is feasible and can decrease variability while increasing precision in CO measurement. These results support the use of artificial intelligence-augmented image acquisition in routine critical care ultrasound and may have a role for evaluating the response of CO to hemodynamic interventions. Further investigations into artificial intelligence-assisted ultrasound systems in clinical settings are warranted.
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The Role of Left Ventricular Ejection Fraction and Left Ventricular Outflow Tract Velocity-Time Integral in Assessing Cardiovascular Impairment in Septic Shock. J Pers Med 2022; 12:jpm12111786. [PMID: 36579502 PMCID: PMC9696803 DOI: 10.3390/jpm12111786] [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: 09/17/2022] [Revised: 10/22/2022] [Accepted: 10/25/2022] [Indexed: 02/01/2023] Open
Abstract
Background: the role of echocardiography in septic shock remains controversial, since depressed cardiac afterload may overestimate left ventricular (LV) systolic performance and mask septic cardiomyopathy (SC). We hypothesized that afterload-adjusted LV ejection fraction (LVEF) and LV outflow tract velocity-time integral (VTI) values for given systemic vascular resistances (SVR) could provide novel insights into recognizing and stratifying the severity of SC. Methods: in this observational, monocentric study, we prospectively included 14 mechanically-ventilated patients under septic-shock who all had a Pulse index Continuous Cardiac Output (PiCCO) system in place for hemodynamic monitoring. Echocardiographic and PiCCO longitudinal examinations (71 measurements overall) were performed simultaneously at the onset of septic shock and every 12 h for 60 h overall. Results: VTI-derived stroke volume (SV) and cardiac output (CO) were significantly correlated with PiCCO measurements (r ≥ 0.993, both p < 0.001). LVEF and VTI showed linear and exponential inverse correlation to SVR (R2 = 0.183 vs. 0.507 and p < 0.001 vs. p < 0.001, respectively). The equations LVEF = 86.168 − 0.011 × SVR and VTI = 41.23 × e(−0.0005×SVR) were found to provide “predicted” values for given SVR. Measured to predicted LVEF ratios (for given SVR), the afterload-adjusted LVEF defined the severity of SC (mild ≥ 90%, 80% ≤ moderate < 90% and severe < 80%). Mild SC demonstrated normal/supra-normal LVEF, normal VTI and SVR. Moderate SC showed lower LVEF and SVR, yet increased LV end-diastolic volume (LVEDV), VTI, SV and CO compared with mild SC (all p < 0.05). Severe SC was distinguished from moderate SC by markedly reduced LVEF, LVEDV, VTI, SV, CO and significantly increased SVR (all p < 0.05). LVEF and VTI decreased over time in mild SC, LVEF decreased in moderate SC, and LVEF and VTI increased over time in severe SC (p ≤ 0.038). LVEF and VTI demonstrated significant performance in identifying severe SC [cut-off < 61.5%, area under the curve (AUC) = 1 ± 0.0, sensitivity/specificity = 100/100, p < 0.001 vs. cut-off < 17.9 cm, AUC = 0.882 ± 0.042, sensitivity/specificity = 80/77, p < 0.001, respectively]. VTI but not LVEF demonstrated significant diagnostic performance in identifying both SVR < 800 dynes·s·cm−5 and SVR > 1500 dynes·s·cm−5 (cut-off > 24.46 cm, AUC = 0.889 ± 0.049, sensitivity/specificity = 75/100, p < 0.001; cut-off < 16.8, AUC = 0.0.857 ± 0.082, sensitivity/specificity = 83/86, p = 0.002, respectively).Conclusions: our study suggests that ICU bedside echocardiographic assessment of LVEF, VTI and their adjusted to corresponding SVR values provides valuable insights for the comprehension of SC phenotypes, underlying vasoplegia and cardiac output fluctuations in septic shock.
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Parker CW, Kolimas AM, Kotini-Shah P. Velocity-Time Integral: A Bedside Echocardiography Technique Finding a Place in the Emergency Department. J Emerg Med 2022; 63:382-388. [DOI: 10.1016/j.jemermed.2022.04.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 02/11/2022] [Accepted: 04/23/2022] [Indexed: 11/12/2022]
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Mercadal J, Borrat X, Hernández A, Denault A, Beaubien-Souligny W, González-Delgado D, Vives M, Carmona P, Nagore D, Sánchez E, Serna M, Cuesta P, Bengoetxea U, Miralles F. A simple algorithm for differential diagnosis in hemodynamic shock based on left ventricle outflow tract velocity–time integral measurement: a case series. Ultrasound J 2022; 14:36. [PMID: 36001157 PMCID: PMC9402822 DOI: 10.1186/s13089-022-00286-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 08/03/2022] [Indexed: 11/29/2022] Open
Abstract
Echocardiography has gained wide acceptance among intensive care physicians during the last 15 years. The lack of accredited formation, the long learning curve required and the excessive structural orientation of the present algorithms to evaluate hemodynamically unstable patients hampers its daily use in the intensive care unit. The aim of this article is to show 4 cases where the use of our simple algorithm based on VTI, was crucial. Subsequently, to explain the benefit of using the proposed algorithm with a more functional perspective, as a means for clinical decision-making. A simple algorithm based on left ventricle outflow tract velocity–time integral measurement for a functional hemodynamic monitoring on patients suffering hemodynamic shock or instability is proposed by Spanish Critical Care Ultrasound Network Group. This algorithm considers perfusion and congestion variables. Its simplicity might be useful for guiding physicians in their daily decision-making managing critically ill patients in hemodynamic shock.
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Falsetti L, Marra AM, Zaccone V, Sampaolesi M, Riccomi F, Giovenali L, Guerrieri E, Viticchi G, D'Agostino A, Gentili T, Nitti C, Moroncini G, Cittadini A, Salvi A. Echocardiographic predictors of mortality in intermediate-risk pulmonary embolism. Intern Emerg Med 2022; 17:1287-1299. [PMID: 35059990 DOI: 10.1007/s11739-021-02910-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 12/09/2021] [Indexed: 12/13/2022]
Abstract
Data regarding further risk stratification of intermediate-risk pulmonary embolism (IR-PE) are scanty. Whether transthoracic echocardiography may be helpful in further risk assessment of death in such population has still to be proven. Two-hundred fifty-four consecutive patients (51.6% females, age 63.7 ± 17.3 years) with IR-PE admitted to a tertiary regional referral center were enrolled. Patients underwent a complete transthoracic echocardiography within 36 h from hospital admission, on top of clinical assessment, physical examination, computer tomography pulmonary angiography (CTPA), and serum measurement of Troponin I (TnI) levels. The occurrence of 90 day mortality was chosen as primary outcome measure. When compared to survivors, non-surviving IR-PE patients had smaller left-ventricular end-diastolic volumes (39.8 ± 20.9 vs 49.4 ± 19.9 ml/m2, p = 0.006) with reduced stroke volume index (SVi) (24.7 ± 10.9 vs 30.9 ± 12.6 ml/m2, p: 0.004) and time-velocity integral at left-ventricular outflow tract (VTILVOT) (0.17 ± 0.03 vs 0.20 ± 0.04 m, p = 0.0001), whereas no differences were recorded regarding right heart parameters. Cox regression analysis revealed that right atrial enlargement (RAE) (HR 3.432, 5-95% CI 1.193-9.876, p: 0.022), the ratio between tricuspid annulus plane excursion and pulmonary arterial systolic pressure (TAPSE/PASp) (HR 4.833, 5-95% 1.230-18.986, p = 0.024), as well as SVi (HR 11.199, 5-95% CI 2.697-48.096, p = 0.001) and VTILVOT (HR 4.212, 5-95% CI 1.384-12.820, p = 0.011) were powerful independent predictors of mortality. Neither CTPA RV/LV nor TnI resulted associated with impaired survival. In intermediate-risk pulmonary embolism, RAE, TAPSE/PASp ratio, SVi, and VTILVOT predict independently prognosis to a greater extent than CTPA and TnI.
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Affiliation(s)
- Lorenzo Falsetti
- Internal and Subintensive Medicine Department, Azienda Ospedaliero-Universitaria "Ospedali Riuniti" di Ancona, Via Conca 71, Ancona, Italy.
| | - Alberto Maria Marra
- Department of Translational Medical Sciences, "Federico II" University Hospital and School of Medicine, Naples, Italy
- Center for Pulmonary Hypertension, Thoraxclinic at Heidelberg University Hospital, Heidelberg, Germany
| | - Vincenzo Zaccone
- Internal and Subintensive Medicine Department, Azienda Ospedaliero-Universitaria "Ospedali Riuniti" di Ancona, Via Conca 71, Ancona, Italy
| | - Mattia Sampaolesi
- Emergency Medicine Residency Program, Marche Polytechnic University, Ancona, Italy
| | - Francesca Riccomi
- Emergency Medicine Residency Program, Marche Polytechnic University, Ancona, Italy
| | - Laura Giovenali
- Emergency Medicine Residency Program, Marche Polytechnic University, Ancona, Italy
| | - Emanuele Guerrieri
- Emergency Medicine Residency Program, Marche Polytechnic University, Ancona, Italy
| | - Giovanna Viticchi
- Clinica di Neurologia, Azienda Ospedaliero-Universitaria "Ospedali Riuniti" di Ancona, Ancona, Italy
| | | | - Tamira Gentili
- Internal and Subintensive Medicine Department, Azienda Ospedaliero-Universitaria "Ospedali Riuniti" di Ancona, Via Conca 71, Ancona, Italy
| | - Cinzia Nitti
- Internal and Subintensive Medicine Department, Azienda Ospedaliero-Universitaria "Ospedali Riuniti" di Ancona, Via Conca 71, Ancona, Italy
| | - Gianluca Moroncini
- Clinica Medica, Azienda Ospedaliero-Universitaria "Ospedali Riuniti" di Ancona, Ancona, Italy
| | - Antonio Cittadini
- Department of Translational Medical Sciences, "Federico II" University Hospital and School of Medicine, Naples, Italy
| | - Aldo Salvi
- Internal and Subintensive Medicine Department, Azienda Ospedaliero-Universitaria "Ospedali Riuniti" di Ancona, Via Conca 71, Ancona, Italy
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Isogai H, Ogasawara O. Is There a Correlation Between Left Ventricular Outflow Tract Velocity Time Integral and Stroke Volume Index in Patients Undergoing Cardiac Surgery? Cureus 2022; 14:e27257. [PMID: 36039242 PMCID: PMC9403260 DOI: 10.7759/cureus.27257] [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] [Accepted: 07/23/2022] [Indexed: 11/28/2022] Open
Abstract
Introduction Left ventricular outflow tract velocity time integral (LVOT VTI) is a promising surrogate for stroke volume (SV). However, there is controversy in the literature regarding its correlation with thermodilution or newer cardiac output measurement techniques. This study was conducted to determine the correlation between LVOT VTI determined by transesophageal echocardiography (TEE) with stroke volume index (SVI) calculated by thermodilution. Methods Consecutive patients older than 17 years undergoing elective cardiac surgery with pulmonary artery catheter (PAC) and TEE monitoring between September 2021 and February 2022 were included in this prospective, descriptive, single-center study. LVOT VTI was measured using TEE after induction of anesthesia but before skin incision and at least four hours after initial LVOT VTI measurement. SVI was simultaneously measured using the continuous thermodilution technique with a PAC. The correlation between LVOT VTI and SVI was determined with Pearson’s correlation index. Results Twelve patients were included and 21 paired measurements were compared. Mean SVI was 31.62 ± 10.71 mL/m2 and mean LVOT VTI was 14.74 ± 4.79 cm. The Pearson's correlation index for the two measurements was r = 0.257, p = 0.262. Conclusion This prospective study demonstrated a weak correlation between LVOT VTI and SVI in patients undergoing cardiac surgery.
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Zhai S, Wang H, Sun L, Zhang B, Huo F, Qiu S, Wu X, Ma J, Wu Y, Duan J. Artificial intelligence (AI) versus expert: A comparison of left ventricular outflow tract velocity time integral (LVOT-VTI) assessment between ICU doctors and an AI tool. J Appl Clin Med Phys 2022; 23:e13724. [PMID: 35816461 PMCID: PMC9359021 DOI: 10.1002/acm2.13724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 05/13/2022] [Accepted: 06/27/2022] [Indexed: 11/30/2022] Open
Abstract
Purpose The application of point of care ultrasound (PoCUS) in medical education is a relatively new course. There are still great differences in the existence, quantity, provision, and depth of bedside ultrasound education. The left ventricular outflow tract velocity time integral (LVOT‐VTI) has been successfully used in several studies as a parameter for hemodynamic management of critically ill patients, especially in the evaluation of fluid responsiveness. While LVOT‐VTI has been broadly used, valuable applications using artificial intelligence (AI) in PoCUS is still limited. We aimed to identify the degree of correlation between auto LVOT‐VTI and the manual LVOT‐VTI acquired by PoCUS trained ICU doctors. Methods Among the 58 ICU doctors who attended PoCUS training from 1 September 2019 to 30 November 2020, 46 ICU doctors who trained for more than 3 months were enrolled. At the end of PoCUS training, each of the enrolled ICU doctors acquired echocardiography parameters of a new ICU patient in 2 h after new patient was admitted. One of the two bedside expert sonographers would take standard echocardiogram of new ICU patients within 24 h. For ICU doctors, manual LVOT‐VTI was obtained for reference and auto LVOT‐VTI was calculated instantly by using an AI software tool. Based on the image quality of the auto LVOT‐VTI, ICU patients was separated into ideal group (n = 31) and average group (n = 15). Results Left ventricular end‐diastolic dimension (LVEDd, p = 0.1028), left ventricular ejection fraction (LVEF, p = 0.3251), left atrial dimension (LA‐d, p = 0.0962), left ventricular E/A ratio (p = 0.160), left ventricular wall motion (p = 0.317) and pericardial effusion (p = 1) had no significant difference between trained ICU doctors and expert sonographer. ICU patients in average group had greater sequential organ failure assessment (SOFA) score (7.33 ± 1.58 vs. 4.09 ± 0.57, p = 0.022) and lactic acid (3.67 ± 0.86 mmol/L vs. 1.46 ± 0.12 mmol/L, p = 0.0009) with greater value of LVEDd (51.93 ± 1.07 vs. 47.57 ± 0.89, p = 0.0053), LA‐d (39.06 ± 1.47 vs. 35.22 ± 0.98, p = 0.0334) and percentage of decreased wall motion (p = 0.0166) than ideal group. There were no significant differences of δLVOT‐VTI (|manual LVOT‐VTI – auto LVOT‐VTI|/manual VTI*100%) between the two groups (8.8% ± 1.3% vs. 10% ± 2%, p = 0.6517). Statistically, significant correlations between manual LVOT‐VTI and auto LVOT‐VTI were present in the ideal group (R2 = 0.815, p = 0.00) and average group (R2 = 0.741, p = 0.00). Conclusions ICU doctors could achieve the satisfied level of expertise as expert sonographers after 3 months of PoCUS training. Nearly two thirds of the enrolled ICU doctors could obtain the ideal view and one third of them could acquire the average view. ICU patients with higher SOFA scores and lactic acid were less likely to acquire the ideal view. Manual and auto LVOT‐VTI had statistically significant agreement in both ideal and average groups. Auto LVOT‐VTI in ideal view was more relevant with the manual LVOT‐VTI than the average view. AI might provide real‐time guidance among novice operators who lack expertise to acquire the ideal standard view.
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Affiliation(s)
- Shanshan Zhai
- Department of Surgery Intensive Care Unit, China-Japan Friendship Hospital, Beijing, China
| | - Hui Wang
- Department of Surgery Intensive Care Unit, China-Japan Friendship Hospital, Beijing, China
| | - Lichao Sun
- Department of Emergency Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Bo Zhang
- Department of Ultrasound Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Feng Huo
- Department of Emergency Medicine, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Shuang Qiu
- Department of Intensive Care Unit, The Sixth Clinical Medical, College of Henan University of Traditional Chinese Medicine, Zhumadian, Henan Province, 463000, China
| | - Xiaoqing Wu
- Department of Surgery Intensive Care Unit, China-Japan Friendship Hospital, Beijing, China
| | - Junyu Ma
- Department of Surgery Intensive Care Unit, China-Japan Friendship Hospital, Beijing, China
| | - Yina Wu
- Department of Surgery Intensive Care Unit, China-Japan Friendship Hospital, Beijing, China
| | - Jun Duan
- Department of Surgery Intensive Care Unit, China-Japan Friendship Hospital, Beijing, China
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Sández I, Verdier N, Redondo JI, Tarragona L, Donati PA, Serrano S, Otero PE. Agreement between transthoracic echocardiography and esophageal Doppler on aortic flow variables in anesthetized mechanically ventilated dogs. THE CANADIAN VETERINARY JOURNAL = LA REVUE VETERINAIRE CANADIENNE 2022; 63:722-726. [PMID: 35784775 PMCID: PMC9207967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The use of transthoracic echocardiography (TTE) and esophageal Doppler (ED) for the measurement of hemodynamic variables in anesthetized dogs was studied. Fourteen mixed-breed dogs, without cardiac disease, undergoing general anesthesia for diagnostic or therapeutic procedures were included in this prospective preliminary study. Dogs were premedicated with dexmedetomidine (3 μg/kg) and methadone (0.3 mg/kg), intramuscularly. General anesthesia was induced with propofol intravenously titrated to effect and maintained with isoflurane in oxygen. Animals were positioned in dorsal recumbency. Transthoracic echocardiography was performed using a 5-2 MHz cardiac ultrasound probe placed in the subcostal window, whereas esophageal Doppler was performed using a CardioQ probe (MP50; Deltex Medical, Chichester, UK). Once an appropriate view of the aortic flow was obtained, the variables peak velocity (PV) and velocity-time integral (VTI) were measured. Agreement between methods was evaluated using the Bland-Altman method with single observation per individual. The bias and the limits of agreement (LOA) between the two methods were determined. Mean (± SD) PV was 99.46 cm/s (± 42.73 cm/s) and 110.29 cm/s (± 35.86 cm/s), and VTI was 13.24 cm (± 4.33 cm) and 13.05 cm (± 4.47 cm), for TTE and ED, respectively. Mean differences and LOA were 10.83 cm/s (range: -20.50 to 42.16 cm/s) and -0.19 cm (range: -3.32 to 2.95 cm) for PV and VTI, respectively. No statistically significant differences were determined in the variables measured between TTE and ED in anesthetized dogs without cardiac disease, positioned in dorsal recumbency. This could be of clinical relevance when an evaluation of the intraoperative hemodynamic status of anesthetized dogs is desired.
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Affiliation(s)
- Ignacio Sández
- Hospital Veterinario Vetsia, Leganés, Madrid, Spain (Sández, Serrano); Department of Anesthesiology and Pain Management, Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, Buenos Aires, Argentina (Verdier, Tarragona, Donati, Otero); Department of Anesthesiology and Perioperative Intensive Care, University of Veterinary Medicine, Vienna, Austria (Verdier); Universidad Cardenal Herrera-CEU, CEU Universities, Medicina y Cirugía Animal, Alfara del Patriarca, Valencia, Spain (Redondo)
| | - Natalí Verdier
- Hospital Veterinario Vetsia, Leganés, Madrid, Spain (Sández, Serrano); Department of Anesthesiology and Pain Management, Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, Buenos Aires, Argentina (Verdier, Tarragona, Donati, Otero); Department of Anesthesiology and Perioperative Intensive Care, University of Veterinary Medicine, Vienna, Austria (Verdier); Universidad Cardenal Herrera-CEU, CEU Universities, Medicina y Cirugía Animal, Alfara del Patriarca, Valencia, Spain (Redondo)
| | - J Ignacio Redondo
- Hospital Veterinario Vetsia, Leganés, Madrid, Spain (Sández, Serrano); Department of Anesthesiology and Pain Management, Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, Buenos Aires, Argentina (Verdier, Tarragona, Donati, Otero); Department of Anesthesiology and Perioperative Intensive Care, University of Veterinary Medicine, Vienna, Austria (Verdier); Universidad Cardenal Herrera-CEU, CEU Universities, Medicina y Cirugía Animal, Alfara del Patriarca, Valencia, Spain (Redondo)
| | - Lisa Tarragona
- Hospital Veterinario Vetsia, Leganés, Madrid, Spain (Sández, Serrano); Department of Anesthesiology and Pain Management, Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, Buenos Aires, Argentina (Verdier, Tarragona, Donati, Otero); Department of Anesthesiology and Perioperative Intensive Care, University of Veterinary Medicine, Vienna, Austria (Verdier); Universidad Cardenal Herrera-CEU, CEU Universities, Medicina y Cirugía Animal, Alfara del Patriarca, Valencia, Spain (Redondo)
| | - Pablo A Donati
- Hospital Veterinario Vetsia, Leganés, Madrid, Spain (Sández, Serrano); Department of Anesthesiology and Pain Management, Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, Buenos Aires, Argentina (Verdier, Tarragona, Donati, Otero); Department of Anesthesiology and Perioperative Intensive Care, University of Veterinary Medicine, Vienna, Austria (Verdier); Universidad Cardenal Herrera-CEU, CEU Universities, Medicina y Cirugía Animal, Alfara del Patriarca, Valencia, Spain (Redondo)
| | - Susana Serrano
- Hospital Veterinario Vetsia, Leganés, Madrid, Spain (Sández, Serrano); Department of Anesthesiology and Pain Management, Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, Buenos Aires, Argentina (Verdier, Tarragona, Donati, Otero); Department of Anesthesiology and Perioperative Intensive Care, University of Veterinary Medicine, Vienna, Austria (Verdier); Universidad Cardenal Herrera-CEU, CEU Universities, Medicina y Cirugía Animal, Alfara del Patriarca, Valencia, Spain (Redondo)
| | - Pablo E Otero
- Hospital Veterinario Vetsia, Leganés, Madrid, Spain (Sández, Serrano); Department of Anesthesiology and Pain Management, Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, Buenos Aires, Argentina (Verdier, Tarragona, Donati, Otero); Department of Anesthesiology and Perioperative Intensive Care, University of Veterinary Medicine, Vienna, Austria (Verdier); Universidad Cardenal Herrera-CEU, CEU Universities, Medicina y Cirugía Animal, Alfara del Patriarca, Valencia, Spain (Redondo)
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Papanikolaou J, Karelas D, Kutsogiannis DJ, Platogiannis N, Karakitsos D. An underestimated tool for both cooling and circulatory support in cardiac arrest survivors developing severe hyperthermia. Resusc Plus 2022; 10:100224. [PMID: 35403070 PMCID: PMC8983430 DOI: 10.1016/j.resplu.2022.100224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 03/09/2022] [Accepted: 03/12/2022] [Indexed: 10/28/2022] Open
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Left Ventricle Outflow Tract Velocity-Time Index and Right Ventricle to Left Ventricle Ratio as Predictors for in Hospital Outcome in Intermediate-Risk Pulmonary Embolism. Diagnostics (Basel) 2022; 12:diagnostics12051226. [PMID: 35626382 PMCID: PMC9139934 DOI: 10.3390/diagnostics12051226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 05/09/2022] [Accepted: 05/11/2022] [Indexed: 12/10/2022] Open
Abstract
Accurate estimation of risk with both imaging and biochemical parameters in intermediate risk pulmonary embolism (PE) remains challenging. The aim of the study was to evaluate echocardiographic parameters that reflect right and left heart hemodynamic as predictors of adverse events in intermediate risk PE. This was a retrospective observational study on patients with computed tomography pulmonary angiography diagnosis of PE admitted at Cardiology department of the Clinical Emergency Hospital of Oradea, Romania between January 2018—December 2021. Echocardiographic parameters obtained at admission were studied as predictors of in hospital adverse events. The following adverse outcomes were registered: death, resuscitated cardiac arrest, hemodynamic deterioration and need of rescue thrombolysis. An adverse outcome was present in 50 patients (12.62%). PE related death was registered in 17 patients (4.3%), resuscitated cardiac arrest occurred in 6 patients (1.51%). Another 20 patients (5.05%) required escalation of therapy with thrombolysis and 7 (1.76%) patients developed haemodynamic instability. Echocardiographic independent predictors for in hospital adverse outcome were RV/LV ≥ 1 (HR = 3.599, 95% CI 1.378−9.400, p = 0.009) and VTI ≤ 15 mm (HR = 11.711, 95% CI 4.336−31.633, p < 0.001). The receiver operator curve renders an area under curve for LVOT VTI ≤ 15 mm of 0.792 (95% CI 0.719−0.864, p < 0.001) and for a RV/LV ≥ 1 of 0.746 (95% CI 0.671−0.821, p < 0.001). A combined criterion (LVOT VTI ≤ 15 and RV/LV ≥ 1) showed a positive predictive value of 75% and a negative predictive value of 95% regarding in hospital adverse outcomes. Low LVOT VTI and increased RV/LV are useful for identifying normotensive patients with PE at risk for short term adverse outcomes. Combining an LVOT VTI ≤ 15 cm with a RV/LV ≥ 1 can identify with increased accuracy PE patients with impending risk of clinical deterioration.
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Vasoactive Inotropic Score as a Prognostic Factor during (Cardio-) Respiratory ECMO. J Clin Med 2022; 11:jcm11092390. [PMID: 35566516 PMCID: PMC9103233 DOI: 10.3390/jcm11092390] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 04/10/2022] [Accepted: 04/20/2022] [Indexed: 12/12/2022] Open
Abstract
The vasoactive inotropic score (VIS) is calculated as a weighted sum of all administered vasopressor and inotropic medications and quantifies the amount of pharmacological cardiovascular support in patients with the most severe combined cardiopulmonary failure supported with extracorporeal membrane oxygenation (ECMO). This study evaluated (1) whether VIS prior to the initiation of ECMO is an independent predictor of survival in these patients and (2) whether VIS might guide the selection of the appropriate extracorporeal cannulation modality (Veno-Venous ‘V-V’ or Veno-VenoArterial ‘V-VA’). In this study, 39 V-VA and 182 V-V ECMO runs were retrospectively analyzed. VIS immediately prior to ECMO initiation (pre-ECMO) was 40 (10/113) in all patients, 30 (10/80) in patients with V-V ECMO and 207 (60/328) in patients with V-VA ECMO. Pre-ECMO VIS was an independent predictor of survival in univariate (AUC = 0.68, p = 0.001) and multi-variable analyses (p = 0.02). Pre-ECMO VIS was clearly associated with mortality (p = 0.001) in V-V ECMO group; however, V-VA ECMO disrupted this association (p = 0.18). Therefore, in conjunction with echocardiography, VIS might assist in selecting the appropriate ECMO cannulation strategy as patients with a pre-ECMO VIS ≥ 61.4 had significantly lower odds of survival compared to those with lower VIS.
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Kim MH, Yu HT, Park YJ, Kim TH, Joung B, Lee MH, Pak HN. Diabetes Mellitus Is an Independent Risk Factor for a Stiff Left Atrial Physiology After Catheter Ablation for Atrial Fibrillation. Front Cardiovasc Med 2022; 9:828478. [PMID: 35419435 PMCID: PMC8995895 DOI: 10.3389/fcvm.2022.828478] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 03/07/2022] [Indexed: 11/30/2022] Open
Abstract
Background Scar tissue formation after catheter ablation for atrial fibrillation (AF) may adversely affect the diastolic properties of the left atrium (LA), which can result in a stiff LA physiology in a small proportion of patients. In this study, we aimed to explore the relationship between diabetes mellitus and a stiff LA physiology after AF catheter ablation (AFCA). Methods A total of 1,326 patients who underwent de novo AFCA, and baseline and 1-year follow-up echocardiographies were enrolled. After 1:3 propensity score (PS) matching for age, sex, and AF type, we compared 211 patients with DM with 633 patients without DM. A stiff LA physiology was defined as estimated pulmonary arterial pressure increase of >10 mmHg and a right ventricular systolic pressure of >35 mmHg at 1-year follow-up echocardiography. Pulmonary vascular resistance (PVR) was estimated using echocardiographic parameters. Results Among the 844 PS-matched patients, a stiff LA physiology was observed in 32 patients (4.1%). The patients with DM showed a higher peak LA pressure (p < 0.001) and greater LA wall stress (p = 0.001) than did those without. A stiff LA physiology was independently associated with DM [Odds ratio (OR) = 2.39, 95% confidence interval (CI) 1.02-5.59, p = 0.045], empirical extra-pulmonary vein LA ablation (OR = 3.14, 95% CI 1.07–9.3, p = 0.038) and the ΔPVR (OR = 1.78, 95% CI 1.37–2.31, p < 0.001). The ΔPVR was independently associated with DM (β = 0.37, 95% CI 0.06-0.67, p = 0.020) and a stiff LA physiology (β = 1.40, 95% CI 0.70–2.10, p < 0.001). During the 38.8 ± 29.3months follow-up, the incidence of the clinical recurrence of AF was significantly higher in the patients with a stiff LA physiology than in those without (log rank p = 0.032). Conclusion A stiff LA physiology was independently associated with DM because of the relatively small decrease in the PVR after AFCA in this population. The patients with a stiff LA physiology had worse rhythm outcomes after AFCA than those without.
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Wang W, Mu G, Liu C, Xie J, Zhang H, Zhang X, Che J, Tse G, Liu T, Li G, Fu H. A Novel Three-Dimensional and Tissue Doppler Echocardiographic Index for Diagnosing and Prognosticating Heart Failure With Preserved Ejection Fraction. Front Cardiovasc Med 2022; 9:822314. [PMID: 35224053 PMCID: PMC8866454 DOI: 10.3389/fcvm.2022.822314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 01/18/2022] [Indexed: 11/29/2022] Open
Abstract
Introduction The diagnosis of heart failure with preserved ejection fraction (HFpEF) remains challenging. In this study, a novel echocardiography index based on three-dimensional and tissue Doppler echocardiography for diagnosing and estimating prognosis in HFpEF. Materials and Methods Patients with symptoms and/or signs of heart failure and normal left ventricular ejection fraction (LVEF ≥50%) who underwent right heart catheterization were screened. Patients were divided based on pulmonary capillary wedge pressure (PCWP) of ≥15 mmHg and PCWP <15 mmHg. A diagnosis of HFpEF was confirmed by PCWP of ≥15 mmHg according to ESC guidelines. A novel index was calculated by the ratio between stroke volume standardized to body surface area (SVI) and tissue Doppler mitral annulus systolic peak velocity S' (SVI/S'). Its diagnostic and prognostic values were determined. Results A total of 104 patients (mean age 64 ± 12 years) were included. Of these, 63 had PCWP ≥15 mmHg and 41 patients had PCWP <15 mmHg. Compared to the PCWP <15 mmHg group, the ≥15 mmHg group had a significantly lower SVI/S' (P < 0.001). Logistic regression showed that SVI/S' was associated with high PCWP measured invasively. The SVI/S' had an area under the curve of 0.761 for diagnosing classifying between PCWP ≥15 mmHg and <15 mmHg. Kaplan–Meier analysis showed that the lower SVI/S' group showed a poorer prognosis. Conclusions SVI/S' is a non-invasive index calculated by three-dimensional and tissue Doppler echocardiography. It is a surrogate measure of PCWP and can be used to diagnose and determine prognosis in HFpEF.
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Affiliation(s)
- Weiding Wang
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Guanyu Mu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Changle Liu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Juan Xie
- School of Public Health, Tianjin Medical University, Tianjin, China
| | - Hao Zhang
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Xiaowei Zhang
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Jingjin Che
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Gary Tse
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
- Kent and Medway Medical School, Canterbury, United Kingdom
| | - Tong Liu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Guangping Li
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
- Guangping Li
| | - Huaying Fu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
- *Correspondence: Huaying Fu
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Assessing Fluid Intolerance with Doppler Ultrasonography: A Physiological Framework. Med Sci (Basel) 2022; 10:medsci10010012. [PMID: 35225945 PMCID: PMC8883898 DOI: 10.3390/medsci10010012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/04/2022] [Accepted: 02/07/2022] [Indexed: 12/11/2022] Open
Abstract
Ultrasonography is becoming the favored hemodynamic monitoring utensil of emergentologists, anesthesiologists and intensivists. While the roles of ultrasound grow and evolve, many clinical applications of ultrasound stem from qualitative, image-based protocols, especially for diagnosing and managing circulatory failure. Often, these algorithms imply or suggest treatment. For example, intravenous fluids are opted for or against based upon ultrasonographic signs of preload and estimation of the left ventricular ejection fraction. Though appealing, image-based algorithms skirt some foundational tenets of cardiac physiology; namely, (1) the relationship between cardiac filling and stroke volume varies considerably in the critically ill, (2) the correlation between cardiac filling and total vascular volume is poor and (3) the ejection fraction is not purely an appraisal of cardiac function but rather a measure of coupling between the ventricle and the arterial load. Therefore, management decisions could be enhanced by quantitative approaches, enabled by Doppler ultrasonography. Both fluid ‘responsiveness’ and ‘tolerance’ are evaluated by Doppler ultrasound, but the physiological relationship between these constructs is nebulous. Accordingly, it is argued that the link between them is founded upon the Frank–Starling–Sarnoff relationship and that this framework helps direct future ultrasound protocols, explains seemingly discordant findings and steers new routes of enquiry.
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Abstract
Despite recent advances in the treatment of chronic heart failure, therapeutic options for acute heart failure (AHF) remain limited. AHF admissions are associated with significant multi-organ dysfunction, especially worsening renal failure, which results in significant morbidity and mortality. There are several aspects of AHF management: diagnosis, decongestion, vasoactive therapy, goal-directed medical therapy initiation and safe transition of care. Effective diagnosis and prognostication could be very helpful in an acute setting and rely upon biomarker evaluation with noninvasive assessment of fluid status. Decongestive strategies could be tailored to include pharmaceutical options along with consideration of utilizing ultrafiltration for refractory hypervolemia. Vasoactive agents to augment cardiac function have been evaluated in patients with AHF but have shown to only have limited efficacy. Post stabilization, initiation of quadruple goal-directed medical therapy—angiotensin receptor-neprilysin inhibitors, mineral receptor antagonists, sodium glucose type 2 (SGLT-2) inhibitors, and beta blockers—to prevent myocardial remodeling is being advocated as a standard of care. Safe transition of care is needed prior to discharge to prevent heart failure rehospitalization and mortality. Post-discharge close ambulatory monitoring (including remote hemodynamic monitoring), virtual visits, and rehabilitation are some of the strategies to consider. We hereby review the contemporary approach in AHF diagnosis and management.
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Affiliation(s)
- Hayaan Kamran
- Department of Cardiovascular Medicine, Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, OH, USA
| | - W H Wilson Tang
- Department of Cardiovascular Medicine, Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, OH, USA
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Kanchi M, Damodaran S, Kulkarni A, Gunaseelan V, Raj V. Automated versus manual B-lines counting, left ventricular outflow tract velocity time integral and inferior vena cava collapsibility index in COVID-19 patients. Indian J Anaesth 2022; 66:368-374. [PMID: 35782660 PMCID: PMC9241188 DOI: 10.4103/ija.ija_1008_21] [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: 11/20/2021] [Revised: 03/30/2022] [Accepted: 04/21/2022] [Indexed: 11/26/2022] Open
Abstract
Background and Aims: The incorporation of artificial intelligence (AI) in point-of-care ultrasound (POCUS) has become a very useful tool to quickly assess cardiorespiratory function in coronavirus disease (COVID)-19 patients. The objective of this study was to test the agreement between manual and automated B-lines counting, left ventricular outflow tract velocity time integral (LVOT-VTI) and inferior vena cava collapsibility index (IVC-CI) in suspected or confirmed COVID-19 patients using AI integrated POCUS. In addition, we investigated the inter-observer, intra-observer variability and reliability of assessment of echocardiographic parameters using AI by a novice. Methods: Two experienced sonographers in POCUS and one novice learner independently and consecutively performed ultrasound assessment of B-lines counting, LVOT-VTI and IVC-CI in 83 suspected and confirmed COVID-19 cases which included both manual and AI methods. Results: Agreement between automated and manual assessment of LVOT-VTI, and IVC-CI were excellent [intraclass correlation coefficient (ICC) 0.98, P < 0.001]. Intra-observer reliability and inter-observer reliability of these parameters were excellent [ICC 0.96-0.99, P < 0.001]. Moreover, agreement between novice and experts using AI for LVOT-VTI and IVC-CI assessment was also excellent [ICC 0.95-0.97, P < 0.001]. However, correlation and intra-observer reliability between automated and manual B-lines counting was moderate [(ICC) 0.52-0.53, P < 0.001] and [ICC 0.56-0.69, P < 0.001], respectively. Inter-observer reliability was good [ICC 0.79-0.87, P < 0.001]. Agreement of B-lines counting between novice and experts using AI was weak [ICC 0.18, P < 0.001]. Conclusion: AI-guided assessment of LVOT-VTI, IVC-CI and B-lines counting is reliable and consistent with manual assessment in COVID-19 patients. Novices can reliably estimate LVOT-VTI and IVC-CI using AI software in COVID-19 patients.
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Kenny JÉS, Clarke G, Myers M, Elfarnawany M, Eibl AM, Eibl JK, Nalla B, Atoui R. A Wireless Wearable Doppler Ultrasound Detects Changing Stroke Volume: Proof-of-Principle Comparison with Trans-Esophageal Echocardiography during Coronary Bypass Surgery. Bioengineering (Basel) 2021; 8:203. [PMID: 34940356 PMCID: PMC8698882 DOI: 10.3390/bioengineering8120203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/30/2021] [Accepted: 12/07/2021] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND A novel, wireless, ultrasound biosensor that adheres to the neck and measures real-time Doppler of the carotid artery may be a useful functional hemodynamic monitor. A unique experimental set-up during elective coronary artery bypass surgery is described as a means to compare the wearable Doppler to trans-esophageal echocardiography (TEE). METHODS A total of two representative patients were studied at baseline and during Trendelenburg position. Carotid Doppler spectra from the wearable ultrasound and TEE were synchronously captured. Areas under the receiver operator curve (AUROC) were performed to assess the accuracy of changing common carotid artery velocity time integral (ccVTI∆) at detecting a clinically significant change in stroke volume (SV∆). RESULTS Synchronously measuring and comparing Doppler spectra from the wearable ultrasound and TEE is feasible during Trendelenburg positioning. In two representative cardiac surgical patients, the ccVTI∆ accurately detected a clinically significant SV∆ with AUROCs of 0.89, 0.91, and 0.95 when single-beat, 3-consecutive beat and 10-consecutive beat averages were assessed, respectively. CONCLUSION In this proof-of-principle research communication, a wearable Doppler ultrasound system is successfully compared to TEE. Preliminary data suggests that the diagnostic accuracy of carotid Doppler ultrasonography at detecting clinically significant SV∆ is enhanced by averaging more cardiac cycles.
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Affiliation(s)
- Jon-Émile Stuart Kenny
- Health Sciences North Research Institute, Sudbury, ON P3E 2H2, Canada; (G.C.); (A.M.E.); (J.K.E.); (B.N.); (R.A.)
- Flosonics Medical, 325 Front Street, Toronto, ON M5V 2Y1, Canada; (M.M.); (M.E.)
| | - Geoffrey Clarke
- Health Sciences North Research Institute, Sudbury, ON P3E 2H2, Canada; (G.C.); (A.M.E.); (J.K.E.); (B.N.); (R.A.)
- Flosonics Medical, 325 Front Street, Toronto, ON M5V 2Y1, Canada; (M.M.); (M.E.)
| | - Matt Myers
- Flosonics Medical, 325 Front Street, Toronto, ON M5V 2Y1, Canada; (M.M.); (M.E.)
| | - Mai Elfarnawany
- Flosonics Medical, 325 Front Street, Toronto, ON M5V 2Y1, Canada; (M.M.); (M.E.)
| | - Andrew M. Eibl
- Health Sciences North Research Institute, Sudbury, ON P3E 2H2, Canada; (G.C.); (A.M.E.); (J.K.E.); (B.N.); (R.A.)
- Flosonics Medical, 325 Front Street, Toronto, ON M5V 2Y1, Canada; (M.M.); (M.E.)
| | - Joseph K. Eibl
- Health Sciences North Research Institute, Sudbury, ON P3E 2H2, Canada; (G.C.); (A.M.E.); (J.K.E.); (B.N.); (R.A.)
- Flosonics Medical, 325 Front Street, Toronto, ON M5V 2Y1, Canada; (M.M.); (M.E.)
- Northern Ontario School of Medicine, Sudbury, ON P3E 2C6, Canada
| | - Bhanu Nalla
- Health Sciences North Research Institute, Sudbury, ON P3E 2H2, Canada; (G.C.); (A.M.E.); (J.K.E.); (B.N.); (R.A.)
- Northern Ontario School of Medicine, Sudbury, ON P3E 2C6, Canada
| | - Rony Atoui
- Health Sciences North Research Institute, Sudbury, ON P3E 2H2, Canada; (G.C.); (A.M.E.); (J.K.E.); (B.N.); (R.A.)
- Northern Ontario School of Medicine, Sudbury, ON P3E 2C6, Canada
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