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Fava de Lima F, Siqueira de Nóbrega R, Cesare Biselli PJ, Takachi Moriya H. Central venous pressure waveform analysis during sleep/rest: a novel approach to enhance intensive care unit post-extubation monitoring of extubation failure. J Clin Monit Comput 2024:10.1007/s10877-024-01171-0. [PMID: 38954170 DOI: 10.1007/s10877-024-01171-0] [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: 08/25/2023] [Accepted: 04/25/2024] [Indexed: 07/04/2024]
Abstract
This pilot study aimed to investigate the relation between cardio-respiratory parameters derived from Central Venous Pressure (CVP) waveform and Extubation Failure (EF) in mechanically ventilated ICU patients during post-extubation period. This study also proposes a new methodology for analysing these parameters during rest/sleep periods to try to improve the identification of EF. We conducted a prospective observational study, computing CVP-derived parameters including breathing effort, spectral analyses, and entropy in twenty critically ill patients post-extubation. The Dynamic Warping Index (DWi) was calculated from the respiratory component extracted from the CVP signal to identify rest/sleep states. The obtained parameters from EF patients and patients without EF were compared both during arbitrary periods and during reduced DWi (rest/sleep). We have analysed data from twenty patients of which nine experienced EF. Our findings may suggest significantly increased respiratory effort in EF patients compared to those successfully extubated. Our study also suggests the occurrence of significant change in the frequency dispersion of the cardiac signal component. We also identified a possible improvement in the differentiation between the two groups of patients when assessed during rest/sleep states. Although with caveats regarding the sample size, the results of this pilot study may suggest that CVP-derived cardio-respiratory parameters are valuable for monitoring respiratory failure during post-extubation, which could aid in managing non-invasive interventions and possibly reduce the incidence of EF. Our findings also indicate the possible importance of considering sleep/rest state when assessing cardio-respiratory parameters, which could enhance respiratory failure detection/monitoring.
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Affiliation(s)
- Felipe Fava de Lima
- Biomedical Engineering Laboratory, Escola Politécnica, University of São Paulo (USP), São Paulo, Brazil.
| | | | | | - Henrique Takachi Moriya
- Biomedical Engineering Laboratory, Escola Politécnica, University of São Paulo (USP), São Paulo, Brazil
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2
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Guío Rodríguez K, Del Pilar Rico Mendoza J, Barrios Peralta ER. Point of Care Ultrasound as a Key Tool in the Evaluation of a Woman with Syncope. POCUS JOURNAL 2024; 9:60-62. [PMID: 38681152 PMCID: PMC11044927 DOI: 10.24908/pocus.v9i1.17329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
Using point of care ultrasound (POCUS) to evaluate patients with syncope in the emergency department facilitates the timely diagnosis of life-threatening pathologies. Case: A 56-year-old woman presented to the emergency department of a hospital in Bogotá, Colombia, for a syncopal episode. Vital signs, physical examination, electrocardiogram, and routine laboratory tests were normal. Cardiac POCUS was performed, which identified an echogenic mass located in the left atrium, measuring 35x28mm, which in left atrial systole appeared to occupy the entire chamber. She underwent surgical resection of the mass and histopathology revealed atrial myxoma. Conclusions: POCUS was useful in the rapid diagnosis of atrial myxoma in a woman presenting with syncope.
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Affiliation(s)
- Katherine Guío Rodríguez
- Emergency Medicine Resident, Department of Internal Medicine, Pontificia Universidad JaverianaBogotáColombia
| | | | - Elkin René Barrios Peralta
- Specialization in Emergency Medicine, Department of Internal Medicine, Pontificia Universidad JaverianaBogotáColombia
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3
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Kenny JES. The left ventricular outflow tract and carotid artery velocity time integrals. FRONTIERS IN MEDICAL TECHNOLOGY 2024; 6:1320810. [PMID: 38333734 PMCID: PMC10847292 DOI: 10.3389/fmedt.2024.1320810] [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: 10/17/2023] [Accepted: 01/15/2024] [Indexed: 02/10/2024] Open
Abstract
The left ventricular outflow tract velocity time integral (LVOT VTI) is commonly used in the intensive care unit as a measure of stroke volume (SV) and how the SV changes in response to an intervention; therefore, the LVOT VTI is used to guide intravenous fluid management. Various peripheral Doppler surrogates are proposed to infer the LVOT VTI (e.g., measures from the common carotid artery). A recently-described, novel method of insonation has an excellent ability to detect change in the LVOT VTI. This approach raises important facets of Doppler flow and insonation error, as well as the general principles at play when using a peripheral artery to infer changes from the left ventricle. Relating the VTI of a peripheral artery to the LVOT VTI was recently described mathematically and may help clinicians think about the Doppler relationship between central and peripheral flow.
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Affiliation(s)
- Jon-Emile S. Kenny
- Health Sciences North Research Institute, Sudbury, ON, Canada
- Flosonics Medical, Toronto, ON, Canada
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4
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Gong S, Lian H, Ding X, Wang X. High Respiratory and Cardiac Drive Exacerbate Secondary Lung Injury in Patients With Critical Illness. J Intensive Care Med 2024:8850666231222220. [PMID: 38173252 DOI: 10.1177/08850666231222220] [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: 01/05/2024]
Abstract
The high respiratory and cardiac drive is essential to the host-organ unregulated response. When a primary disease and an unregulated secondary response are uncontrolled, the patient may present in a high respiratory and cardiac drive state. High respiratory drive can cause damage to the lungs, pulmonary circulation, and diaphragm, while high cardiac drive can lead to fluid leakage and infiltration as well as pulmonary interstitial edema. A "respiratory and cardiac dual high drive" state may be a sign of an unregulated response and can lead to secondary lung injury through the increase of transvascular pressure and pulmonary microcirculation injury. Ultrasound examination of the lung, heart, and diaphragm is important when evaluating the phenotype of high respiratory drive in critically ill patients. Ultrasound assessment can guide sedation, analgesia, and antistress treatment and reduce the risk of high respiratory and cardiac drive-induced lung injury in these patients.
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Affiliation(s)
- Shiyi Gong
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Hui Lian
- Department of Health Care, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Xin Ding
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Xiaoting Wang
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
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Heyne TF, Negishi K, Choi DS, Al Saud AA, Marinacci LX, Smithedajkul PY, Devaraj LR, Little BP, Mendoza DP, Flores EJ, Petranovic M, Toal SP, Shokoohi H, Liteplo AS, Geisler BP. Handheld Lung Ultrasound to Detect COVID-19 Pneumonia in Inpatients: A Prospective Cohort Study. POCUS JOURNAL 2023; 8:175-183. [PMID: 38099168 PMCID: PMC10721309 DOI: 10.24908/pocus.v8i2.16484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
Background: Chest imaging, including chest X-ray (CXR) and computed tomography (CT), can be a helpful adjunct to nucleic acid test (NAT) in the diagnosis and management of Coronavirus Disease 2019 (COVID-19). Lung point of care ultrasound (POCUS), particularly with handheld devices, is an imaging alternative that is rapid, highly portable, and more accessible in low-resource settings. A standardized POCUS scanning protocol has been proposed to assess the severity of COVID-19 pneumonia, but it has not been sufficiently validated to assess diagnostic accuracy for COVID-19 pneumonia. Purpose: To assess the diagnostic performance of a standardized lung POCUS protocol using a handheld POCUS device to detect patients with either a positive NAT or a COVID-19-typical pattern on CT scan. Methods: Adult inpatients with confirmed or suspected COVID-19 and a recent CT were recruited from April to July 2020. Twelve lung zones were scanned with a handheld POCUS machine. Images were reviewed independently by blinded experts and scored according to the proposed protocol. Patients were divided into low, intermediate, and high suspicion based on their POCUS score. Results: Of 79 subjects, 26.6% had a positive NAT and 31.6% had a typical CT pattern. The receiver operator curve for POCUS had an area under the curve (AUC) of 0.787 for positive NAT and 0.820 for a typical CT. Using a two-point cutoff system, POCUS had a sensitivity of 0.90 and 1.00 compared to NAT and typical CT pattern, respectively, at the lower cutoff; it had a specificity of 0.90 and 0.89 compared to NAT and typical CT pattern at the higher cutoff, respectively. Conclusions: The proposed lung POCUS protocol with a handheld device showed reasonable diagnostic performance to detect inpatients with a positive NAT or typical CT pattern for COVID-19. Particularly in low-resource settings, POCUS with handheld devices may serve as a helpful adjunct for persons under investigation for COVID-19 pneumonia.
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Affiliation(s)
- Thomas F Heyne
- Department of Medicine, Massachusetts General HospitalBoston, MAUSA
- Department of Pediatrics, Massachusetts General HospitalBoston, MAUSA
| | - Kay Negishi
- Department of Medicine, Massachusetts General HospitalBoston, MAUSA
| | - Daniel S Choi
- Department of Emergency Medicine, Massachusetts General HospitalBoston, MAUSA
| | - Ahad A Al Saud
- Department of Emergency Medicine, Massachusetts General HospitalBoston, MAUSA
- Department of Emergency Medicine, King Saud University College of MedicineRiyadhSaudi Arabia
| | - Lucas X Marinacci
- Richard A. and Susan F. Smith Center for Outcomes Research, Beth Israel Deaconess Medical CenterBoston, MAUSA
| | | | - Lily R Devaraj
- Department of Medicine, Massachusetts General HospitalBoston, MAUSA
- Department of Pediatrics, Massachusetts General HospitalBoston, MAUSA
| | - Brent P Little
- Department of Radiology, Massachusetts General HospitalBoston, MAUSA
| | - Dexter P Mendoza
- Department of Radiology, Massachusetts General HospitalBoston, MAUSA
| | - Efren J Flores
- Department of Radiology, Massachusetts General HospitalBoston, MAUSA
| | - Milena Petranovic
- Department of Radiology, Massachusetts General HospitalBoston, MAUSA
| | - Steven P Toal
- Department of Medicine, Massachusetts General HospitalBoston, MAUSA
| | - Hamid Shokoohi
- Department of Emergency Medicine, Massachusetts General HospitalBoston, MAUSA
| | - Andrew S Liteplo
- Department of Emergency Medicine, Massachusetts General HospitalBoston, MAUSA
| | - Benjamin P Geisler
- Department of Medicine, Massachusetts General HospitalBoston, MAUSA
- Institute for Medical Information Processing, Biometry, and Epidemiology, Ludwig Maximilian UniversityMunichGermany
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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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Prost A, Bourgaux JF, Louart B, Caillo L, Daurat A, Lefrant JY, Pouderoux P, Muller L, Roger C. Echocardiographic hemodynamic assessment in decompensated cirrhosis: comparison between Intensivists and Gastroenterologists. J Clin Monit Comput 2023; 37:1219-1228. [PMID: 36840793 PMCID: PMC9958314 DOI: 10.1007/s10877-023-00983-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 02/08/2023] [Indexed: 02/26/2023]
Abstract
BACKGROUND & AIMS Ascites is a frequent complication of cirrhosis. In intensive care units, initial hemodynamic assessment is frequently performed by echocardiography. This study evaluated the feasibility and usefulness of early hemodynamic assessment in the gastroenterology ward. METHODS This observational cohort study prospectively included all patients admitted to a teaching hospital's gastroenterology unit for decompensated cirrhosis. A gastroenterologist with minimal training and an intensivist both performed an echocardiography exam. The primary outcome was inter-rater agreement and reliability for three echocardiography parameters: visual LVEF (Left Ventricular Ejection Fraction), subaortic VTI (velocity time integral) and E wave velocity. Secondary outcomes were agreement for presence of pleural effusion, description of 3 hemodynamics profiles (hypovolemic, hyperkinetic and intermediate), and 28-day mortality. RESULTS From March 2018 to March 2020, 53 patients were included. The median age was 62 years and 81% were men. Patients presented mostly advanced liver disease, with 43% Child-Pugh C and median MELD score of 15.2. The limits of agreement between intensivists and gastroenterologists for subaortic VTI were - 6.6 to 7.2 cm, and ranged from - 0.6 to 0.37 m.s-1 for E wave velocity. Clinically significant differences between intensivists and gastroenterologists were found in 22% for subaortic VTI and 24.5% for E wave velocity. Reliability was good for subaortic VTI (ICC: 0.79, 95% CI [0.58; 0.9;]) and moderate for E wave velocity (0.53, 95% CI [0.19; 0.74]). The three hemodynamics profiles had different prognosis, with a 28-day mortality for Hypovolemic, Intermediate and Hyperkinetic group of 31, 18, and 4%, respectively. CONCLUSION Reliability of hemodynamic assessment by gastroenterologists was good, while agreement was unsatisfactory, advocating for further training. Transthoracic echocardiography can differentiate hypovolemia from hyperkinetic states. The role of transthoracic echocardiography in managing decompensated cirrhosis requires further study. CLINICAL TRIAL NUMBER NCT03650660.
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Affiliation(s)
- Ardavan Prost
- Department of Hepatology and Gastroenterology, CHU Nimes, University of Montpellier, Nîmes, France.
- Nîmes University Hospital, Place du Pr Robert Debré, 30029, Nîmes, France.
| | - Jean François Bourgaux
- Department of Hepatology and Gastroenterology, CHU Nimes, University of Montpellier, Nîmes, France
| | - Benjamin Louart
- Department of Anesthesia and Intensive Care, CHU Nimes, University of Montpellier, Nîmes, France
| | - Ludovic Caillo
- Department of Hepatology and Gastroenterology, CHU Nimes, University of Montpellier, Nîmes, France
| | - Aurélien Daurat
- Department of Anesthesia and Intensive Care, CHU Nimes, University of Montpellier, Nîmes, France
| | - Jean Yves Lefrant
- Department of Anesthesia and Intensive Care, CHU Nimes, University of Montpellier, Nîmes, France
| | - Philippe Pouderoux
- Department of Hepatology and Gastroenterology, CHU Nimes, University of Montpellier, Nîmes, France
| | - Laurent Muller
- Department of Anesthesia and Intensive Care, CHU Nimes, University of Montpellier, Nîmes, France
| | - Claire Roger
- Department of Anesthesia and Intensive Care, CHU Nimes, University of Montpellier, Nîmes, France
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8
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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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9
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Vos ME, Cox EGM, Schagen MR, Hiemstra B, Wong A, Koeze J, van der Horst ICC, Wiersema R. Right ventricular strain measurements in critically ill patients: an observational SICS sub-study. Ann Intensive Care 2022; 12:92. [PMID: 36190597 PMCID: PMC9530097 DOI: 10.1186/s13613-022-01064-y] [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: 06/07/2022] [Accepted: 09/16/2022] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Right ventricular (RV) dysfunction is common in critically ill patients and is associated with poor outcomes. RV function is usually evaluated by Tricuspid Annular Plane Systolic Excursion (TAPSE) which can be obtained using critical care echocardiography (CCE). Myocardial deformation imaging, measuring strain, is suitable for advanced RV function assessment and has widely been studied in cardiology. However, it is relatively new for the Intensive Care Unit (ICU) and little is known about RV strain in critically ill patients. Therefore, the objectives of this study were to evaluate the feasibility of RV strain in critically ill patients using tissue-Doppler imaging (TDI) and explore the association between RV strain and conventional CCE measurements representing RV function. METHODS This is a single-center sub-study of two prospective observational cohorts (Simple Intensive Care Studies (SICS)-I and SICS-II). All acutely admitted adults with an expected ICU stay over 24 h were included. CCE was performed within 24 h of ICU admission. In patients in which CCE was performed, TAPSE, peak systolic velocity at the tricuspid annulus (RV s') and TDI images were obtained. RV free wall longitudinal strain (RVFWSL) and RV global four-chamber longitudinal strain (RV4CSL) were measured during offline analysis. RESULTS A total of 171 patients were included. Feasibility of RVFWSL and RV4CSL was, respectively, 62% and 56% in our population; however, when measurements were performed, intra- and inter-rater reliability based on the intraclass correlation coefficient were good to excellent. RV dysfunction based on TAPSE or RV s' was found in 56 patients (33%) and 24 patients (14%) had RV dysfunction based on RVFWSL or RV4CSL. In 14 patients (8%), RVFWSL, RV4CSL, or both were reduced, despite conventional RV function measurements being preserved. These patients had significantly higher severity of illness scores. Sensitivity analysis with fractional area change showed similar results. CONCLUSIONS TDI RV strain imaging in critically ill patients is challenging; however, good-to-excellent reproducibility was shown when measurements were adequately obtained. Future studies are needed to elucidate the diagnostic and prognostic value of RV strain in critically ill patients, especially to outweigh the difficulty and effort of imaging against the clinical value.
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Affiliation(s)
- Madelon E Vos
- University Medical Center Groningen, Department of Anaesthesiology, University of Groningen, Groningen, The Netherlands.
| | - Eline G M Cox
- University Medical Center Groningen, Department of Critical Care, University of Groningen, Groningen, The Netherlands
| | - Maaike R Schagen
- Erasmus Medical Center, Department of Internal Medicine, Erasmus University Rotterdam, Rotterdam, The Netherlands
| | - Bart Hiemstra
- Department of Anaesthesiology, Location VU Medical Center, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Adrian Wong
- Department of Critical Care, King's College Hospital, London, UK
| | - Jacqueline Koeze
- University Medical Center Groningen, Department of Critical Care, University of Groningen, Groningen, The Netherlands
| | - Iwan C C van der Horst
- Department of Intensive Care Medicine, University of Maastricht, University Medical Center Maastricht, Maastricht, The Netherlands
| | - Renske Wiersema
- University Medical Center Groningen, Department of Critical Care, University of Groningen, Groningen, The Netherlands.,Department of Cardiology, Erasmus University Rotterdam, Erasmus Medical Center, Rotterdam, the Netherlands
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10
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Jentzer JC, Tabi M, Wiley BM, Lanspa MJ, Anavekar NS, Oh JK. Doppler-derived haemodynamics performed during admission echocardiography predict in-hospital mortality in cardiac intensive care unit patients. EUROPEAN HEART JOURNAL. ACUTE CARDIOVASCULAR CARE 2022; 11:640-650. [PMID: 35851395 DOI: 10.1093/ehjacc/zuac084] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 06/20/2022] [Accepted: 06/28/2022] [Indexed: 06/15/2023]
Abstract
AIMS Cardiac point-of-care ultrasound (CV-POCUS) has become a fundamental part for the assessment of patients admitted to cardiac intensive care units (CICU). We sought to refine the practice of CV-POCUS by identifying 2D and Doppler-derived measurements from bedside transthoracic echocardiograms (TTEs) performed in the CICU that are associated with mortality. METHODS AND RESULTS We retrospectively included Mayo Clinic CICU patients admitted from 2007 to 2018 and assessed the TTEs performed within 1 day of CICU admission, including Doppler and 2D measurements of left and right ventricular function. Logistic regression and classification and regression tree (CART) analysis were used to determine the association between TTE variables with in-hospital mortality. A total of 6957 patients were included with a mean age of 68.0 ± 14.9 years (37.0% females). A total of 609 (8.8%) patients died in the hospital. Inpatient deaths group had worse biventricular systolic function [left ventricular ejection fraction (LVEF) 48.2 ± 16.0% vs. 38.7 ± 18.2%, P < 0.0001], higher filling pressures, and lower forward flow. The strongest TTE predictors of hospital mortality were left ventricular outflow tract velocity-time integral [LVOT VTI, adjusted OR 0.912 per 1 cm higher, 95% confidence interval (CI) 0.883-0.942, P < 0.0001] followed by medial mitral E/e' ratio (adjusted OR 1.024 per 1 unit higher, 95% CI 1.010-1.039, P = 0.0011). Classification and regression tree analysis identified LVOT VTI <16 cm as the most important TTE predictor of mortality. CONCLUSIONS Doppler-derived haemodynamic TTE parameters have a strong association with mortality in the CICU, particularly LVOT VTI <16 cm or mitral E/e' ratio >15. The incorporation of these simplified Doppler-derived haemodynamics into admission CV-POCUS facilitates early risk stratification and strengthens the clinical yield of the ultrasound exam.
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Affiliation(s)
- Jacob C Jentzer
- Department of Cardiovascular Medicine, Mayo Clinic Rochester, 200 First Street SW, Rochester, MN 55905, USA
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Mayo Clinic Rochester, 200 First Street SW, Rochester, MN 55905, USA
- Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, MN 55905, USA
| | - Meir Tabi
- Department of Cardiovascular Medicine, Mayo Clinic Rochester, 200 First Street SW, Rochester, MN 55905, USA
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Mayo Clinic Rochester, 200 First Street SW, Rochester, MN 55905, USA
| | - Brandon M Wiley
- Department of Cardiovascular Medicine, Mayo Clinic Rochester, 200 First Street SW, Rochester, MN 55905, USA
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Mayo Clinic Rochester, 200 First Street SW, Rochester, MN 55905, USA
| | - Michael J Lanspa
- Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, University of Utah, Murray, UT 84132, USA
| | - Nandan S Anavekar
- Department of Cardiovascular Medicine, Mayo Clinic Rochester, 200 First Street SW, Rochester, MN 55905, USA
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Mayo Clinic Rochester, 200 First Street SW, Rochester, MN 55905, USA
| | - Jae K Oh
- Department of Cardiovascular Medicine, Mayo Clinic Rochester, 200 First Street SW, Rochester, MN 55905, USA
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Mayo Clinic Rochester, 200 First Street SW, Rochester, MN 55905, USA
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11
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Cox EGM, Koeze J, van der Horst ICC, Wiersema R. Calculated left ventricular outflow tract diameter for critically ill patients. J Intensive Care 2022; 10:31. [PMID: 35729661 PMCID: PMC9210692 DOI: 10.1186/s40560-022-00623-6] [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: 03/09/2022] [Accepted: 06/13/2022] [Indexed: 11/21/2022] Open
Abstract
A fast and reliable left ventricular outflow diameter (LVOTd) estimation may aid in quickly estimating cardiac output. However, obtaining a correct LVOTd can be difficult in intensive care patients, potentially leading to errors and a cardiac output deviation. In this study, the measured LVOTd was compared with the expected LVOTd when estimated using an existing formula in 1177 critically ill patients. We show that estimated LVOTd based on baseline data can aid when obtaining LVOTd is difficult or impossible and simplified estimation based on a formula may allow for more reliable and accessible measurement of cardiac output.
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Affiliation(s)
- Eline G M Cox
- Department of Critical Care, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
| | - Jacqueline Koeze
- Department of Critical Care, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Iwan C C van der Horst
- Department of Intensive Care Medicine, Maastricht University, Maastricht University Medical Centre+ Maastricht, Maastricht, The Netherlands.,Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
| | - Renske Wiersema
- Department of Critical Care, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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12
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Ross DW, Hasan Z. Role of Point of Care Ultrasonography in Patients with COVID-19 Associated Acute Kidney Injury. POCUS JOURNAL 2022; 7:59-64. [PMID: 36896104 PMCID: PMC9994293 DOI: 10.24908/pocus.v7ikidney.15344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The severe acute respiratory virus covariate-2 (SARS CoV-2) that causes Corona Virus Disease 2019 (COVID-19) has affected more than 194 million people worldwide and has attributed to or caused more than 4 million deaths. Acute kidney injury (AKI) is a common complication of COVID-19. Point of care ultrasonography (POCUS) can be a useful tool for the nephrologist. POCUS can be used to elucidate the cause of kidney disease and then also help to manage volume status. Here, we review pearls and pitfalls of using POCUS to manage COVID-19 associated AKI with special attention to kidney, lung, and cardiac ultrasound.
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Affiliation(s)
- Daniel W Ross
- Division of Kidney Diseases and Hypertension, Donald and Barbara Zucker School of Medicine at Hofstra-Northwell
| | - Zubair Hasan
- Division of Pulmonary, Critical Care, and Sleep Medicine, Donald and Barbara Zucker School of Medicine at Hofstra-Northwell
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13
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Soliman-Aboumarie H, Pastore MC, Galiatsou E, Gargani L, Pugliese NR, Mandoli GE, Valente S, Hurtado-Doce A, Lees N, Cameli M. Echocardiography in the intensive care unit: An essential tool for diagnosis, monitoring and guiding clinical decision-making. Physiol Int 2021. [PMID: 34825894 DOI: 10.1556/1647.2021.00055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Accepted: 10/22/2021] [Indexed: 11/19/2022]
Abstract
In the last years, new trends on patient diagnosis for admission in cardiac intensive care unit (CICU) have been observed, shifting from acute myocardial infarction or acute heart failure to non-cardiac diseases such as sepsis, acute respiratory failure or acute kidney injury. Moreover, thanks to the advances in scientific knowledge and higher availability, there has been increasing use of positive pressure mechanical ventilation which has its implications on the heart. Therefore, there is a growing need for Cardiac intensivists to quickly, noninvasively and repeatedly evaluate various hemodynamic conditions and the response to therapy. Transthoracic critical care echocardiography (CCE) currently represents an essential tool in CICU, as it is used to evaluate biventricular function and complications following acute coronary syndromes, identify the mechanisms of circulatory failure, acute valvular pathologies, tailoring and titrating intravenous treatment or mechanical circulatory support. This could be completed with trans-esophageal echocardiography (TOE), advanced echocardiography and lung ultrasound to provide a thorough evaluation and monitoring of CICU patients. However, CCE could sometimes be challenging as the acquisition of good-quality images is limited by mechanical ventilation, suboptimal patient position or recent surgery with drains on the chest. Moreover, there are some technical caveats that one should bear in mind while performing CCE in order to optimize its use and avoid misleading findings. The aim of this review is to highlight the key role of CCE, providing an updated overview of its main applications and possible pitfalls in order to facilitate its use in CICU for clinical decision-making.
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Affiliation(s)
- Hatem Soliman-Aboumarie
- 1 Department of Anesthetics and Critical Care, Harefield Hospital, Royal Brompton and Harefield Hospitals, Guy's and St Thomas NHS Foundation Trust, London , United Kingdom
- 4 School of Cardiovascular Sciences and Medicine, King's College, London , United Kingdom
| | - Maria Concetta Pastore
- 2 Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
| | - Eftychia Galiatsou
- 1 Department of Anesthetics and Critical Care, Harefield Hospital, Royal Brompton and Harefield Hospitals, Guy's and St Thomas NHS Foundation Trust, London , United Kingdom
| | - Luna Gargani
- 3 Institute of Clinical Physiology, National Research Council, Pisa, Italy
| | | | - Giulia Elena Mandoli
- 2 Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
| | - Serafina Valente
- 2 Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
| | - Ana Hurtado-Doce
- 1 Department of Anesthetics and Critical Care, Harefield Hospital, Royal Brompton and Harefield Hospitals, Guy's and St Thomas NHS Foundation Trust, London , United Kingdom
| | - Nicholas Lees
- 1 Department of Anesthetics and Critical Care, Harefield Hospital, Royal Brompton and Harefield Hospitals, Guy's and St Thomas NHS Foundation Trust, London , United Kingdom
| | - Matteo Cameli
- 2 Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
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