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Pezzuto B, Contini M, Berna G, Galotta A, Cattaneo G, Maragna R, Gugliandolo P, Agostoni P. Dynamic trend of lung fluid movement during exercise in heart failure: From lung imaging to alveolar-capillary membrane function. Int J Cardiol 2024; 407:132041. [PMID: 38643800 DOI: 10.1016/j.ijcard.2024.132041] [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: 08/13/2023] [Revised: 03/10/2024] [Accepted: 04/10/2024] [Indexed: 04/23/2024]
Abstract
BACKGROUND In chronic heart failure (HF), exercise-induced increase in pulmonary capillary pressure may cause an increase of pulmonary congestion, or the development of pulmonary oedema. We sought to assess in HF patients the exercise-induced intra-thoracic fluid movements, by measuring plasma brain natriuretic peptide (BNP), lung comets and lung diffusion for carbon monoxide (DLCO) and nitric oxide (DLNO), as markers of hemodynamic load changes, interstitial space and alveolar-capillary membrane fluids, respectively. METHODS AND RESULTS Twenty-four reduced ejection fraction HF patients underwent BNP, lung comets and DLCO/DLNO measurements before, at peak and 1 h after the end of a maximal cardiopulmonary exercise test. BNP significantly increased at peak from 549 (328-841) to 691 (382-1207, p < 0.0001) pg/mL and almost completely returned to baseline value 1 h after exercise. Comets number increased at peak from 9.4 ± 8.2 to 24.3 ± 16.7, returning to baseline (9.7 ± 7.4) after 1 h (p < 0.0001). DLCO did not change significantly at peak (from 18.01 ± 4.72 to 18.22 ± 4.73 mL/min/mmHg), but was significantly reduced at 1 h (16.97 ± 4.26 mL/min/mmHg) compared to both baseline (p = 0.0211) and peak (p = 0.0174). DLNO showed a not significant trend toward lower values 1 h post-exercise. CONCLUSIONS Moderate/severe HF patients have a 2-step intra-thoracic fluid movement with exercise: the first during active exercise, from the vascular space toward the interstitial space, as confirmed by comets increase, without any effect on diffusion, and the second, during recovery, toward the alveolar-capillary membrane, clearing the interstitial space but worsening gas diffusion.
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Affiliation(s)
| | | | | | | | | | | | | | - Piergiuseppe Agostoni
- Centro Cardiologico Monzino, IRCCS, Milan, Italy; Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.
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Coiro S, Lacomblez C, Duarte K, Gargani L, Rastogi T, Chouihed T, Girerd N. A machine learning-based lung ultrasound algorithm for the diagnosis of acute heart failure. Intern Emerg Med 2024:10.1007/s11739-024-03627-2. [PMID: 38780749 DOI: 10.1007/s11739-024-03627-2] [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: 09/11/2023] [Accepted: 04/23/2024] [Indexed: 05/25/2024]
Abstract
Lung ultrasound (LUS) is an effective tool for diagnosing acute heart failure (AHF). However, several imaging protocols currently exist and how to best use LUS remains undefined. We aimed at developing a lung ultrasound-based model for AHF diagnosis using machine learning. Random forest and decision trees were generated using the LUS data (via an 8-zone scanning protocol) in patients with acute dyspnea admitted to the Emergency Department (PLUME study, N = 117) and subsequently validated in an external dataset (80 controls from the REMI study, 50 cases from the Nancy AHF cohort). Using the random forest model, total B-line sum (i.e., in both hemithoraces) was the most significant variable for identifying AHF, followed by the difference in B-line sum between the superior and inferior lung areas. The decision tree algorithm had a good diagnostic accuracy [area under the curve (AUC) = 0.865] and identified three risk groups (i.e., low 24%, high 70%, and very high-risk 96%) for AHF. The very high-risk group was defined by the presence of 14 or more B-lines in both hemithoraces while the high-risk group was described as having either B-lines mostly localized in superior points or in the right hemithorax. Accuracy in the validation cohort was excellent (AUC = 0.906). Importantly, adding the algorithm on top of a validated clinical score and classical definition of positive LUS scanning for AHF resulted in a significant improvement in diagnostic accuracy (continuous net reclassification improvement = 1.21, P < 0.001). Our simple lung ultrasound-based machine learning algorithm features an excellent performance and may constitute a validated strategy to diagnose AHF.
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Affiliation(s)
- Stefano Coiro
- Cardiology Department, Santa Maria Della Misericordia Hospital, Perugia, Italy
- Université de Lorraine, Centre D'Investigation Clinique-Plurithématique Inserm CIC-P 1433, Inserm U1116, CHRU Nancy Hopitaux de Brabois, F-CRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists), Institut Lorrain du Coeur Et Des Vaisseaux Louis Mathieu, 4 Rue du Morvan, 54500, Vandoeuvre Lès Nancy, France
| | - Claire Lacomblez
- Université de Lorraine, Centre D'Investigation Clinique-Plurithématique Inserm CIC-P 1433, Inserm U1116, CHRU Nancy Hopitaux de Brabois, F-CRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists), Institut Lorrain du Coeur Et Des Vaisseaux Louis Mathieu, 4 Rue du Morvan, 54500, Vandoeuvre Lès Nancy, France
| | - Kevin Duarte
- Université de Lorraine, Centre D'Investigation Clinique-Plurithématique Inserm CIC-P 1433, Inserm U1116, CHRU Nancy Hopitaux de Brabois, F-CRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists), Institut Lorrain du Coeur Et Des Vaisseaux Louis Mathieu, 4 Rue du Morvan, 54500, Vandoeuvre Lès Nancy, France
| | - Luna Gargani
- Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, University of Pisa, Pisa, Italy
| | - Tripti Rastogi
- Université de Lorraine, Centre D'Investigation Clinique-Plurithématique Inserm CIC-P 1433, Inserm U1116, CHRU Nancy Hopitaux de Brabois, F-CRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists), Institut Lorrain du Coeur Et Des Vaisseaux Louis Mathieu, 4 Rue du Morvan, 54500, Vandoeuvre Lès Nancy, France
| | - Tahar Chouihed
- Emergency Department, INSERM, UMRS 1116, University Hospital of Nancy, Nancy, France
| | - Nicolas Girerd
- Université de Lorraine, Centre D'Investigation Clinique-Plurithématique Inserm CIC-P 1433, Inserm U1116, CHRU Nancy Hopitaux de Brabois, F-CRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists), Institut Lorrain du Coeur Et Des Vaisseaux Louis Mathieu, 4 Rue du Morvan, 54500, Vandoeuvre Lès Nancy, France.
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3
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Mongodi S, Arioli R, Quaini A, Grugnetti G, Grugnetti AM, Mojoli F. Lung ultrasound training: how short is too short? observational study on the effects of a focused theoretical training for novice learners. BMC MEDICAL EDUCATION 2024; 24:166. [PMID: 38383377 PMCID: PMC10882777 DOI: 10.1186/s12909-024-05148-0] [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: 11/06/2023] [Accepted: 02/08/2024] [Indexed: 02/23/2024]
Abstract
BACKGROUND Lung ultrasound has been increasingly used in the last years for the assessment of patients with respiratory diseases; it is considered a simple technique, now spreading from physicians to other healthcare professionals as nurses and physiotherapists, as well as to medical students. These providers may require a different training to acquire lung ultrasound skills, since they are expected to have no previous experience with ultrasound. The aim of the study was to assess the impact of a short theoretical training focused on lung ultrasound pattern recognition in a population of novice nurse learners with no previous experience with ultrasound. METHODS We included the nurses attending a critical care advanced course for nurses performed at the University of Pavia. Images' interpretation skills were tested on two slide sets (a 25-clip set focused on B-pattern recognition and a 25-clip set focused on identification of pleural movement as lung sliding, lung pulse, lung point, no movement) before and after three 30-minute teaching modules dedicated to general ultrasound principles, B-lines assessment and lung sliding assessment. A cut off of 80% was considered acceptable for correctly interpreted images after this basic course. RESULTS 22 nurses were enrolled (age 26.0 [24.0-28.0] years; men 4 (18%)); one nurse had previous experience with other ultrasound techniques, none of them had previous experience with lung ultrasound. After the training, the number of correctly interpreted clips improved from 3.5 [0.0-13.0] to 22.0 [19.0-23.0] (p < 0.0001) for B-pattern and from 0.5 [0.0-2.0] to 8.5 [6.0-12.0] (p < 0.0001) for lung sliding assessment. The number of correct answers for B-pattern recognition was significantly higher than for lung sliding assessment, both before (3.5 [0.0-13.0] vs. 0.5 [0.0-2.0]; p = 0.0036) and after (22.0 [19.0-23.0] vs. 8.5 [6.0-12.0]; p < 0.0001) the training. After the training, nurses were able to correctly recognize the presence or the absence of a B-pattern in 84.2 ± 10.3% of cases; lung sliding was correctly assessed in 37.1 ± 15.3% of cases. CONCLUSIONS Lung ultrasound is considered a simple technique; while a short, focused training significantly improves B-pattern recognition, lung sliding assessment may require a longer training for novice learners. TRIAL REGISTRATION Not applicable.
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Affiliation(s)
- Silvia Mongodi
- Anesthesia and Intensive Care, Fondazione IRCCS Policlinico S. Matteo, Rianimazione I, Viale Golgi 19, 27100, Pavia, Italy.
| | - Raffaella Arioli
- Anesthesia and Intensive Care, Fondazione IRCCS Policlinico S. Matteo, Rianimazione I, Viale Golgi 19, 27100, Pavia, Italy
| | - Attilio Quaini
- Department of Health Professions, Fondazione IRCCS Policlinico S. Matteo, Pavia, Italy
| | - Giuseppina Grugnetti
- Department of Health Professions, Fondazione IRCCS Policlinico S. Matteo, Pavia, Italy
| | - Anna Maria Grugnetti
- Department of Health Professions, Fondazione IRCCS Policlinico S. Matteo, Pavia, Italy
| | - Francesco Mojoli
- Anesthesia and Intensive Care, Fondazione IRCCS Policlinico S. Matteo, Rianimazione I, Viale Golgi 19, 27100, Pavia, Italy
- Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, Unit of Anesthesia and Intensive Care , University of Pavia, Pavia, Italy
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4
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Hyun J, Kim AR, Lee SE, Kim MS. B-lines by lung ultrasound as a predictor of re-intubation in mechanically ventilated patients with heart failure. Front Cardiovasc Med 2024; 11:1351431. [PMID: 38390441 PMCID: PMC10881858 DOI: 10.3389/fcvm.2024.1351431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 01/29/2024] [Indexed: 02/24/2024] Open
Abstract
Introduction There have been few studies on predictors of weaning failure from MV in patients with heart failure (HF). We sought to investigate the predictive value of B-lines measured by lung ultrasound (LUS) on the risk of weaning failure from mechanical ventilation (MV) and in-hospital outcomes. Methods This was a single-center, prospective observational study that included HF patients who were on invasive MV. LUS was performed immediate before ventilator weaning. A positive LUS exam was defined as the observation of two or more regions that had three or more count of B-lines located bilaterally on the thorax. The primary outcome was early MV weaning failure, defined as re-intubation within 72 h. Results A total of 146 consecutive patients (mean age 70 years; 65.8% male) were enrolled. The total count of B-lines was a median of 10 and correlated with NT-pro-BNP level (r2 = 0.132, p < 0.001). Early weaning failure was significantly higher in the positive LUS group (9 out of 64, 14.1%) than the negative LUS group (2 out of 82, 2.4%) (p = 0.011). The rate of total re-intubation during the hospital stay (p = 0.004), duration of intensive care unit stay (p = 0.004), and hospital stay (p = 0.010) were greater in the positive LUS group. The negative predictive value (NPV) of positive LUS was 97.6% for the primary outcome. Conclusion B-lines measured by LUS can predict the risk of weaning failure. Considering the high NPV of positive LUS, it may help guide the decision of weaning in patients on invasive MV due to acute decompensated HF.
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Affiliation(s)
- Junho Hyun
- Division of Cardiology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Ah-Ram Kim
- Division of Cardiology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Sang Eun Lee
- Division of Cardiology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Min-Seok Kim
- Division of Cardiology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Gargani L, Girerd N, Platz E, Pellicori P, Stankovic I, Palazzuoli A, Pivetta E, Miglioranza MH, Soliman-Aboumarie H, Agricola E, Volpicelli G, Price S, Donal E, Cosyns B, Neskovic AN. Lung ultrasound in acute and chronic heart failure: a clinical consensus statement of the European Association of Cardiovascular Imaging (EACVI). Eur Heart J Cardiovasc Imaging 2023; 24:1569-1582. [PMID: 37450604 PMCID: PMC11032195 DOI: 10.1093/ehjci/jead169] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 07/05/2023] [Indexed: 07/18/2023] Open
Affiliation(s)
- Luna Gargani
- Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, University of Pisa, via Paradisa 2 5614, Pisa, Italy
| | - Nicolas Girerd
- Université de Lorraine, Centre d'Investigations Cliniques Plurithématique 1433, Institut Lorrain du Cœur et des Vaisseaux Louis Mathieu, CHRU de Nancy, INSERM DCAC, F-CRIN INI-CRCT, Nancy, France
| | - Elke Platz
- Cardiovascular Division, Brigham and Women’s Hospital and Harvard Medical School, Boston, USA
| | - Pierpaolo Pellicori
- School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK
| | - Ivan Stankovic
- Clinical Hospital Centre Zemun, Faculty of Medicine, University of Belgrade, Serbia
| | - Alberto Palazzuoli
- Cardiovascular Diseases Unit, Cardio-Thoracic and Vascular Department, Le Scotte Hospital, University of Siena, Italy
| | - Emanuele Pivetta
- Medicina d'Urgenza-MECAU, Presidio Molinette, A.O.U. Città della Salute e della Scienza di Torino, Italy
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Marcelo Haertel Miglioranza
- EcoHaertel - Hospital Mae de Deus, Porto Alegre, Brazil
- Federal University of Health Sciences of Porto Alegre, Porto Alegre, Brazil
| | - Hatem Soliman-Aboumarie
- Department of Cardiothoracic Anaesthesia and Critical Care, Harefield Hospital, Royal Brompton and Harefield Hospitals, Guy’s and St Thomas NHS Foundation Trust, London, UK
- School of Cardiovascular Medicine and Sciences, King’s College London, UK
| | - Eustachio Agricola
- Cardiovascular Imaging Unit, Cardio-Thoracic-Vascular Department, San Raffaele Hospital, Vita-Salute University, Milan, Italy
| | - Giovanni Volpicelli
- Department of Emergency Medicine, San Luigi Gonzaga University Hospital, Torino, Italy
| | - Susanna Price
- Departments of Cardiology & Intensive Care, Royal Brompton & Harefield Hospitals, Guy’s and St Thomas NHS Foundation Trust, National Heart and Lung Institute, Imperial College London, London, UK
| | - Erwan Donal
- University of Rennes, CHU Rennes, Inserm, Rennes, France
| | - Bernard Cosyns
- Department of Cardiology, Universitair Ziekenhuis Brussel, Jette, Brussels, Belgium
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6
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Chen J, Shen M, Hou S, Duan X, Yang M, Cao Y, Qin W, Niu Q, Li Q, Zhang Y, Wang Y. Intelligent interpretation of four lung ultrasonographic features with split attention based deep learning model. Biomed Signal Process Control 2023. [DOI: 10.1016/j.bspc.2022.104228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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7
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Boccatonda A, Cocco G, D’Ardes D, Delli Pizzi A, Vidili G, De Molo C, Vicari S, Serra C, Cipollone F, Schiavone C, Guagnano MT. Infectious Pneumonia and Lung Ultrasound: A Review. J Clin Med 2023; 12:jcm12041402. [PMID: 36835938 PMCID: PMC9964129 DOI: 10.3390/jcm12041402] [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: 12/19/2022] [Revised: 01/30/2023] [Accepted: 02/06/2023] [Indexed: 02/12/2023] Open
Abstract
The application of thoracic ultrasound examination has not long been developed because ultrasound's interaction with the lung does not generate an anatomical image but an artifactual one. Subsequently, the evaluation of pulmonary artifacts and their correlation to specific diseases allowed the development of ultrasound semantics. Currently, pneumonia still represents one of the main causes of hospitalization and mortality. Several studies in the literature have demonstrated the ultrasound features of pneumonia. Although ultrasound cannot be considered the diagnostic gold standard for the study of all lung diseases, it has experienced an extraordinary development and growth of interest due to the SARS-CoV-2 pandemic. This review aims to provide essential information on the application of lung ultrasound to the study of infectious pneumonia and to discuss the differential diagnosis.
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Affiliation(s)
- Andrea Boccatonda
- Internal Medicine, Bentivoglio Hospital, AUSL Bologna, 40010 Bologna, Italy
- Correspondence: ; Tel.: +39-051-664459; Fax: +39-051-6644361
| | - Giulio Cocco
- Unit of Ultrasound in Internal Medicine, Department of Medicine and Science of Aging, G. D’Annunzio University, 66100 Chieti, Italy
| | - Damiano D’Ardes
- Internal Medicine, Department of Medicine and Science of Aging, G. D’Annunzio University, 66100 Chieti, Italy
| | - Andrea Delli Pizzi
- Unit of Radiology, “Santissima Annunziata” Hospital, 66100 Chieti, Italy
| | - Gianpaolo Vidili
- Department of Medicine, Surgery and Pharmacy, University of Sassari, 07100 Sassari, Italy
| | - Chiara De Molo
- Interventional, Diagnostic and Therapeutic Ultrasound Unit, IRCCS, Azienda Ospedaliero-Universitaria di Bologna, 40010 Bologna, Italy
| | - Susanna Vicari
- Internal Medicine, Bentivoglio Hospital, AUSL Bologna, 40010 Bologna, Italy
| | - Carla Serra
- Interventional, Diagnostic and Therapeutic Ultrasound Unit, IRCCS, Azienda Ospedaliero-Universitaria di Bologna, 40010 Bologna, Italy
| | - Francesco Cipollone
- Internal Medicine, Department of Medicine and Science of Aging, G. D’Annunzio University, 66100 Chieti, Italy
| | - Cosima Schiavone
- Unit of Ultrasound in Internal Medicine, Department of Medicine and Science of Aging, G. D’Annunzio University, 66100 Chieti, Italy
| | - Maria Teresa Guagnano
- Internal Medicine, Department of Medicine and Science of Aging, G. D’Annunzio University, 66100 Chieti, Italy
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Demi L, Wolfram F, Klersy C, De Silvestri A, Ferretti VV, Muller M, Miller D, Feletti F, Wełnicki M, Buda N, Skoczylas A, Pomiecko A, Damjanovic D, Olszewski R, Kirkpatrick AW, Breitkreutz R, Mathis G, Soldati G, Smargiassi A, Inchingolo R, Perrone T. New International Guidelines and Consensus on the Use of Lung Ultrasound. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2023; 42:309-344. [PMID: 35993596 PMCID: PMC10086956 DOI: 10.1002/jum.16088] [Citation(s) in RCA: 54] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 06/28/2022] [Accepted: 07/31/2022] [Indexed: 05/02/2023]
Abstract
Following the innovations and new discoveries of the last 10 years in the field of lung ultrasound (LUS), a multidisciplinary panel of international LUS experts from six countries and from different fields (clinical and technical) reviewed and updated the original international consensus for point-of-care LUS, dated 2012. As a result, a total of 20 statements have been produced. Each statement is complemented by guidelines and future developments proposals. The statements are furthermore classified based on their nature as technical (5), clinical (11), educational (3), and safety (1) statements.
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Affiliation(s)
- Libertario Demi
- Department of Information Engineering and Computer ScienceUniversity of TrentoTrentoItaly
| | - Frank Wolfram
- Department of Thoracic and Vascular SurgerySRH Wald‐Klinikum GeraGeraGermany
| | - Catherine Klersy
- Unit of Clinical Epidemiology and BiostatisticsFondazione IRCCS Policlinico S. MatteoPaviaItaly
| | - Annalisa De Silvestri
- Unit of Clinical Epidemiology and BiostatisticsFondazione IRCCS Policlinico S. MatteoPaviaItaly
| | | | - Marie Muller
- Department of Mechanical and Aerospace EngineeringNorth Carolina State UniversityRaleighNorth CarolinaUSA
| | - Douglas Miller
- Department of RadiologyMichigan MedicineAnn ArborMichiganUSA
| | - Francesco Feletti
- Department of Diagnostic ImagingUnit of Radiology of the Hospital of Ravenna, Ausl RomagnaRavennaItaly
- Department of Translational Medicine and for RomagnaUniversità Degli Studi di FerraraFerraraItaly
| | - Marcin Wełnicki
- 3rd Department of Internal Medicine and CardiologyMedical University of WarsawWarsawPoland
| | - Natalia Buda
- Department of Internal Medicine, Connective Tissue Disease and GeriatricsMedical University of GdanskGdanskPoland
| | - Agnieszka Skoczylas
- Geriatrics DepartmentNational Institute of Geriatrics, Rheumatology and RehabilitationWarsawPoland
| | - Andrzej Pomiecko
- Clinic of Pediatrics, Hematology and OncologyUniversity Clinical CenterGdańskPoland
| | - Domagoj Damjanovic
- Heart Center Freiburg University, Department of Cardiovascular Surgery, Faculty of MedicineUniversity of FreiburgFreiburgGermany
| | - Robert Olszewski
- Department of Gerontology, Public Health and DidacticsNational Institute of Geriatrics, Rheumatology and RehabilitationWarsawPoland
| | - Andrew W. Kirkpatrick
- Departments of Critical Care Medicine and SurgeryUniversity of Calgary and the TeleMentored Ultrasound Supported Medical Interventions Research GroupCalgaryCanada
| | - Raoul Breitkreutz
- FOM Hochschule für Oekonomie & Management gGmbHDepartment of Health and SocialEssenGermany
| | - Gebhart Mathis
- Emergency UltrasoundAustrian Society for Ultrasound in Medicine and BiologyViennaAustria
| | - Gino Soldati
- Diagnostic and Interventional Ultrasound UnitValledel Serchio General HospitalLuccaItaly
| | - Andrea Smargiassi
- Pulmonary Medicine Unit, Department of Medical and Surgical SciencesFondazione Policlinico Universitario A. Gemelli IRCCSRomeItaly
- Department of Internal Medicine, IRCCS San Matteo Hospital FoundationUniversity of PaviaPaviaItaly
| | - Riccardo Inchingolo
- Pulmonary Medicine Unit, Department of Medical and Surgical SciencesFondazione Policlinico Universitario A. Gemelli IRCCSRomeItaly
- Department of Internal Medicine, IRCCS San Matteo Hospital FoundationUniversity of PaviaPaviaItaly
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9
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Royse AG, Lui E, Gai D, Cid X, Canty D, Wang A, Bridgford L, Royse CF. Three Zone Scanning Protocol For Lung Ultrasound: An Anatomical Basis. Heart Lung Circ 2023; 32:247-251. [PMID: 36400698 PMCID: PMC9673129 DOI: 10.1016/j.hlc.2022.09.013] [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: 07/16/2022] [Revised: 08/24/2022] [Accepted: 09/03/2022] [Indexed: 11/17/2022]
Abstract
Lung ultrasound is rapidly gaining popularity based on point of care ease of use, diagnostic fidelity and lack of ionising radiation. This was particularly notable at the beginning of the COVID-19 pandemic, where concerns of contamination of the x-ray department led to a reluctance to order frequent chest x-rays. Early COVID-19 lung involvement is of a bronchopneumonia, and patches of consolidation adjacent to the chest wall were easily detectable by ultrasound. A large number of proposed scanning protocols were advocated and are often complex and largely based on traditional stethoscope examination or access points on the chest wall rather than the underlying lung anatomy. A surgical understanding of lung anatomy and related surface anatomy has led us to develop a simplified three zone scanning protocol in 2013. The anterior zone corresponds to the upper lobe, and the posterior zone is divided between upper lobe and lower lobe. The relationship between lung lobes and the surface of the chest wall provides the anatomical basis for a simple three scanning zone lung ultrasound protocol.
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Affiliation(s)
- Alistair G Royse
- Department of Surgery, The University of Melbourne, Melbourne, Vic, Australia; Department of Cardiothoracic Surgery, The Royal Melbourne Hospital, Melbourne, Vic, Australia.
| | - Elaine Lui
- Department of Radiology, The University of Melbourne, Melbourne, Vic, Australia; Department of Radiology, The Royal Melbourne Hospital, Melbourne, Vic, Australia
| | - Dayu Gai
- Department of Radiology, The Royal Melbourne Hospital, Melbourne, Vic, Australia
| | - Ximena Cid
- Department of Surgery, The University of Melbourne, Melbourne, Vic, Australia; Department of Medicine, The Royal Melbourne Hospital, Melbourne, Vic, Australia
| | - David Canty
- Department of Surgery, The University of Melbourne, Melbourne, Vic, Australia; Department of Anaesthesia, Monash Medical Centre, Melbourne, Vic, Australia
| | - Andrew Wang
- Department of Surgery, The University of Melbourne, Melbourne, Vic, Australia
| | - Lindsay Bridgford
- Department of Surgery, The University of Melbourne, Melbourne, Vic, Australia; Emergency Department, Maroondah Hospital, Melbourne, Vic, Australia
| | - Colin F Royse
- Department of Surgery, The University of Melbourne, Melbourne, Vic, Australia; Department of Anaesthesia, The Royal Melbourne Hospital, Melbourne, Vic, Australia; Outcomes Research Consortium, Cleveland Clinic, Cleveland, OH, USA
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10
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Lombardi A, De Luca M, Fabiani D, Sabatella F, Del Giudice C, Caputo A, Cante L, Gambardella M, Palermi S, Tavarozzi R, Russo V, D’Andrea A. Ultrasound during the COVID-19 Pandemic: A Global Approach. J Clin Med 2023; 12:jcm12031057. [PMID: 36769702 PMCID: PMC9918296 DOI: 10.3390/jcm12031057] [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: 12/28/2022] [Revised: 01/24/2023] [Accepted: 01/27/2023] [Indexed: 02/03/2023] Open
Abstract
SARS-CoV-2 (severe acute respiratory syndrome Coronavirus-2) rapidly spread worldwide as COVID-19 (Coronavirus disease 2019), causing a costly and deadly pandemic. Different pulmonary manifestations represent this syndrome's most common clinical manifestations, together with the cardiovascular complications frequently observed in these patients. Ultrasound (US) evaluations of the lungs, heart, and lower limbs may be helpful in the diagnosis, follow-up, and prognosis of patients with COVID-19. Moreover, POCUS (point-of-care ultrasound) protocols are particularly useful for patients admitted to intensive care units. The present review aimed to highlight the clinical conditions during the SARS-CoV-2 pandemic in which the US represents a crucial diagnostic tool.
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Affiliation(s)
- Anna Lombardi
- Department of General Medicine, San Leonardo Hospital, 80053 Castellammare di Stabia, Italy
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy
| | - Mariarosaria De Luca
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy
| | - Dario Fabiani
- Department of Cardiology, Luigi Vanvitelli University–Monaldi Hospital, 80131 Naples, Italy
| | - Francesco Sabatella
- Department of Cardiology, Luigi Vanvitelli University–Monaldi Hospital, 80131 Naples, Italy
| | - Carmen Del Giudice
- Department of Cardiology, Luigi Vanvitelli University–Monaldi Hospital, 80131 Naples, Italy
| | - Adriano Caputo
- Department of Cardiology, Luigi Vanvitelli University–Monaldi Hospital, 80131 Naples, Italy
| | - Luigi Cante
- Department of Cardiology, Luigi Vanvitelli University–Monaldi Hospital, 80131 Naples, Italy
| | - Michele Gambardella
- Department of Advanced Biomedical Sciences, University of Naples Federico II, 80131 Naples, Italy
| | - Stefano Palermi
- Public Health Department, University of Naples Federico II, 80131 Naples, Italy
| | - Rita Tavarozzi
- Department of Translational Medicine, Università degli Studi del Piemonte Orientale, 28100 Novara, Italy
| | - Vincenzo Russo
- Department of Cardiology, Luigi Vanvitelli University–Monaldi Hospital, 80131 Naples, Italy
| | - Antonello D’Andrea
- Department of Cardiology, Luigi Vanvitelli University–Monaldi Hospital, 80131 Naples, Italy
- Department of Cardiology, Umberto I Hospital, 84014 Nocera Inferiore, Italy
- Correspondence:
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Kowalczyk D, Piotrowski WJ, Rosiak O, Białas AJ. Concise, Practical Review on Transthoracic Lung Ultrasound in Prehospital Diagnosis of Dyspnea in Adults. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:medicina59020224. [PMID: 36837426 PMCID: PMC9959919 DOI: 10.3390/medicina59020224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/16/2023] [Accepted: 01/22/2023] [Indexed: 01/26/2023]
Abstract
Ultrasonography is a relatively young but widely recognized method of imaging parenchymal organs, including the lungs. Our concise, practical review on transthoracic lung ultrasound (LUS) in the prehospital diagnosis of dyspnea in adults attempts to summarize current knowledge in the field. Furthermore, we discussed POCUS protocols in the analyzed context, discussing their usefulness. We concluded that bedside ultrasonography, or point of care (POCUS), is developing rapidly; however, the knowledge about the use of LUS in a pre-hospital setting is scarce, highlighting the need for further research in this field. Additionally, despite the possibility of using various ultrasound protocols in diagnosing a patient with dyspnea, there is no comprehensive and, at the same time, highly sensitive and specific protocol covering a satisfactory saccade of differential diagnosis of this symptom. It seems reasonable to conduct further targeted research to create such a dedicated solution.
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Affiliation(s)
- Damian Kowalczyk
- Department of Pneumology, Medical University of Lodz, 90-419 Lodz, Poland
- Correspondence:
| | | | - Oskar Rosiak
- Department of Otolaryngology, Polish Mother’s Memorial Hospital Research Institute, 90-419 Lodz, Poland
| | - Adam J. Białas
- Department of Pneumology, Medical University of Lodz, 90-419 Lodz, Poland
- Department of Pulmonary Rehabilitation, Center for Lung Diseases and Rehabilitation, Blessed Rafal Chylinski Memorial Hospital for Lung Diseases, 90-419 Lodz, Poland
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12
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D’Andrea A, Del Giudice C, Fabiani D, Caputo A, Sabatella F, Cante L, Palermi S, Desiderio A, Tagliamonte E, Liccardo B, Russo V. The Incremental Role of Multiorgan Point-of-Care Ultrasounds in the Emergency Setting. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:2088. [PMID: 36767456 PMCID: PMC9915087 DOI: 10.3390/ijerph20032088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/10/2023] [Accepted: 01/13/2023] [Indexed: 06/18/2023]
Abstract
Point-of-care ultrasonography (POCUS) represents a goal-directed ultrasound examination performed by clinicians directly involved in patient healthcare. POCUS has been widely used in emergency departments, where US exams allow physicians to make quick diagnoses and to recognize early life-threatening conditions which require prompt interventions. Although initially meant for the real-time evaluation of cardiovascular and respiratory pathologies, its use has been extended to a wide range of clinical applications, such as screening for deep-vein thrombosis and trauma, abdominal ultrasonography of the right upper quadrant and appendix, and guidance for invasive procedures. Moreover, recently, bedside ultrasounds have been used to evaluate the fluid balance and to guide decongestive therapy in acutely decompensated heart failure. The aim of the present review was to discuss the most common applications of POCUS in the emergency setting.
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Affiliation(s)
- Antonello D’Andrea
- Department of Cardiology and Intensive Coronary Care, Umberto I Hospital, 84014 Nocera Inferiore, Italy
| | - Carmen Del Giudice
- Division of Cardiology, Department of Traslational Medical Sciences, University of Campania Luigi Vanvitelli, 80131 Naples, Italy
| | - Dario Fabiani
- Division of Cardiology, Department of Traslational Medical Sciences, University of Campania Luigi Vanvitelli, 80131 Naples, Italy
| | - Adriano Caputo
- Division of Cardiology, Department of Traslational Medical Sciences, University of Campania Luigi Vanvitelli, 80131 Naples, Italy
| | - Francesco Sabatella
- Division of Cardiology, Department of Traslational Medical Sciences, University of Campania Luigi Vanvitelli, 80131 Naples, Italy
| | - Luigi Cante
- Division of Cardiology, Department of Traslational Medical Sciences, University of Campania Luigi Vanvitelli, 80131 Naples, Italy
| | - Stefano Palermi
- Public Health Department, University of Naples Federico II, 80131 Naples, Italy
| | - Alfonso Desiderio
- Department of Cardiology and Intensive Coronary Care, Umberto I Hospital, 84014 Nocera Inferiore, Italy
| | - Ercole Tagliamonte
- Department of Cardiology and Intensive Coronary Care, Umberto I Hospital, 84014 Nocera Inferiore, Italy
| | - Biagio Liccardo
- Division of Cardiology, Department of Traslational Medical Sciences, University of Campania Luigi Vanvitelli, 80131 Naples, Italy
| | - Vincenzo Russo
- Division of Cardiology, Department of Traslational Medical Sciences, University of Campania Luigi Vanvitelli, 80131 Naples, Italy
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Balabanova AA, Kurazhov AP, Zavadovskaya VD. Lung ultrasound in the diagnosis of COVID-19-associated pneumonia. BULLETIN OF SIBERIAN MEDICINE 2023. [DOI: 10.20538/1682-0363-2022-4-150-159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Over the past decades, lung ultrasound in the diagnosis of lung diseases has become widespread. Ultrasound examination has a number of advantages (no radiation exposure, real-time imaging, clear visualization of the subpleural lung regions and costophrenic angles), which make it possible to use ultrasound to monitor the dynamics of pneumonia in children and pregnant women. Currently, in the context of the COVID-19 pandemic, lung ultrasound is widely used due to its high diagnostic efficiency, which is comparable with classical radiography and X-ray computed tomography (CT) by a number of parameters.The article describes the method of lung ultrasound and the radiographic pattern of COVID-19-associated pneumonia. It also provides a review of the literature, according to which the severity of pneumonia was determined, depending on the radiographic pattern, and the need for a lung ultrasound was identified.The article indicates that information on assessment of the radiographic pattern of the lungs at runtime in different variants of the course of coronavirus infection, as well as many methodological issues, including the frequency of second-look lung ultrasound, has not been sufficiently studied.
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Murali A, Prakash A, Dixit R, Juneja M, Kumar N, Padaliya P. Lung Ultrasound: A Complementary Imaging Tool for Chest X-Ray in the Evaluation of Dyspnea. Indian J Radiol Imaging 2023; 33:162-172. [PMID: 37123581 PMCID: PMC10132878 DOI: 10.1055/s-0042-1759850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
AbstractThe present study was designed to evaluate the spectrum of imaging findings seen on chest ultrasonography in patients presenting with dyspnea and verify the concordance between chest X-ray and chest ultrasound.Methods Fifty-three patients presenting with dyspnea were included in this study. Patients with known/suspected cardiac disease were excluded from the study. All patients underwent chest X-ray and chest ultrasound, reported by two different investigators. The concordance was analyzed using Cohen's kappa value with a ‘p-value’ less than 0.05 considered statistically significant.Results Among the fifty-three patients with dyspnea, five diagnostic pathologies were evaluated. Concordance between lung ultrasound and chest X-ray for diagnosis of pneumonia, pneumothorax, acute exacerbation of COPD/severe asthma, and diffuse alveolar interstitial syndrome was found to be high with Cohen's kappa value > 0.8 (p < 0.01). Ultrasound was able to correctly diagnose more cases of pneumothorax and pulmonary edema compared with chest X-ray with sensitivity and negative predictive value of 100%. Chest X-ray was found to be superior in correctly diagnosing COPD. The difference was, however, not statistically significant. Similarly, no statistically significant difference could be inferred between the diagnostic value of ultrasound and Chest X-ray in the diagnosis of pneumonia or pleural effusion.Conclusions A high concordance was noted between ultrasound and chest X-ray for diagnosis of all pathologies studied (p < 0.01), the highest noted in pneumonia/pleural effusion and diffuse interstitial syndrome (κ = 0.9). Hence, ultrasound may be considered a complimentary imaging modality for Chest-X-ray in the evaluation of dyspnea.
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Affiliation(s)
- Aparna Murali
- Department of Radiodiagnosis, Maulana Azad Medical College & Lok Nayak Hospital, New Delhi, India
| | - Anjali Prakash
- Department of Radiodiagnosis, Maulana Azad Medical College & Lok Nayak Hospital, New Delhi, India
| | - Rashmi Dixit
- Department of Radiodiagnosis, Maulana Azad Medical College & Lok Nayak Hospital, New Delhi, India
| | - Monica Juneja
- Department of Pediatrics, Maulana Azad Medical College & Lok Nayak Hospital, New Delhi, India
| | - Naresh Kumar
- Department of Pulmonary Medicine, Maulana Azad Medical College & Lok Nayak Hospital, New Delhi, India
| | - Prerna Padaliya
- Department of Radiodiagnosis, Maulana Azad Medical College & Lok Nayak Hospital, New Delhi, India
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15
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Cui L, Chen J, Ye C. The role of lung ultrasonography in the assessment of overhydration in maintenance hemodialysis patients. Ren Fail 2022; 44:1985-1992. [PMID: 36648024 PMCID: PMC9848227 DOI: 10.1080/0886022x.2022.2132169] [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] [Indexed: 01/18/2023] Open
Abstract
PURPOSE Existed methods like biochemical markers improve the accuracy of fluid evaluation for the maintenance hemodialysis patients, but none of them has become the gold standard. This study aimed to evaluate the potential of lung ultrasonography as a useful tool for monitoring the volume status of the patients. METHODS A total of 88 patients undergoing maintenance hemodialytic were enrolled in this prospective observational study. Patients were divided into three groups: overhydration (OH), normohydration, and hypohydration according to bioimpedance spectroscopy. Lung ultrasonography parameters, echocardiography parameters, and clinical characteristics of three groups were analyzed. After an average follow-up of 433 days, all-cause mortality among groups was compared. RESULTS The total number of lung comets was statistically reduced in patients after dialysis (Z= -6.891, p < 0.001). This reduction was related to ΔOH (OH - ΔW (the weight gain from dry weight)) and echocardiographic parameters, which proved the relationship among the comet-tail, hydration status of body and cardiac performance. The Kappa consistency test showed that lung ultrasonography and bioelectrical spectroscopy had moderate consistency. ROC analysis showed that the best cut-point of lung comet is 13. The pre-/post-dialysis lung comet-tail, cardiac function and total body impedance with all-cause mortality was investigated. Kaplan-Meier's analysis revealed that the all-cause mortality was higher in lung congestion patients. CONCLUSIONS This study proposes a potentially reliable lung ultrasonography method for estimating fluids overload, which also has implication value of all-cause mortality.
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Affiliation(s)
- Linlin Cui
- Kidney Institute of CPLA and Division of Nephrology, Changzheng Hospital, Naval Military Medical University, Shanghai, China
| | - Jiejian Chen
- Department of Nephrology, The 900th Hospital of Joint Logistic Support Force, PLA, Fuzhou, China
| | - Chaoyang Ye
- Department of Nephrology, Shuguang Hospital Shanghai University of Traditional Chinese Medicine, Shanghai, China,CONTACT Chaoyang Ye Department of Nephrology, Shuguang Hospital Shanghai University of Traditional Chinese Medicine, Puan Road, No. 185, Huangpu District, Shanghai201203, China
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16
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Joërg L, Trouillon T, Jalaber C, Court Fortune I, Luchez A, Boutet C, Vergnon JM, Bertoletti L, Froudarakis ME. Chest ultrasound findings in usual interstitial pneumonia patterns: a pilot study. Monaldi Arch Chest Dis 2022; 93. [PMID: 36069640 DOI: 10.4081/monaldi.2022.2356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 08/11/2022] [Indexed: 11/23/2022] Open
Abstract
It is unknown what role chest ultrasound plays in distinguishing the various usual interstitial pneumonia (UIP) patterns of high-resolution chest tomography (HRCT). The purpose of this study was to see if there was a link between the results of chest ultrasound (u/s) and HRCT in patients with idiopathic pulmonary fibrosis (IPF). We performed chest u/s in 16 patients with UIP and probable UIP patterns to indeterminate UIP and alternative diagnosis patterns in this single center prospective study to determine any possible relationship with the HRCT findings. A chest radiologist reviewed each HRCT to determine the pattern in accordance with the American Thoracic Society (ATS) / European Respiratory Society (ERS) Guidelines. The local multidisciplinary committee validated the patients' diagnoses before they were included. When compared to the indeterminate for UIP or alternative diagnosis pattern group, there was a trend (p=0.07) toward the presence of more B lines in UIP or probable UIP patterns. There was no statistically significant difference in the presence of small, large, white lung, or pleural line thickening >5mm. Subgroup analysis revealed that patients with honeycombing were more likely to have a fragmented pleural line (p=0.04). To summarize, in our pilot study, chest u/s appears unable to differentiate UIP and probable UIP patterns from indeterminate UIP and alternative diagnosis patterns. However, it appears that this technique can be used to recognize the honeycombing pattern.
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17
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Lê MP, Jozwiak M, Laghlam D. Current Advances in Lung Ultrasound in COVID-19 Critically Ill Patients: A Narrative Review. J Clin Med 2022; 11:jcm11175001. [PMID: 36078934 PMCID: PMC9457386 DOI: 10.3390/jcm11175001] [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: 07/07/2022] [Revised: 08/22/2022] [Accepted: 08/24/2022] [Indexed: 11/16/2022] Open
Abstract
Lung ultrasound (LUS) has a relatively recent democratization due to the better availability and training of physicians, especially in intensive care units. LUS is a relatively cheap and easy-to-learn and -use bedside technique that evaluates pulmonary morphology when using simple algorithms. During the global COVID-19 pandemic, LUS was found to be an accurate tool to quickly diagnose, triage and monitor patients with COVID-19 pneumonia. This paper aims to provide a comprehensive review of LUS use during the COVID-19 pandemic. The first section of our work defines the technique, the practical approach and the semeiotic signs of LUS examination. The second section exposed the COVID-19 pattern in LUS examination and the difference between the differential diagnosis patterns and the well-correlation found with computer tomography scan findings. In the third section, we described the utility of LUS in the management of COVID-19 patients, allowing an early diagnosis and triage in the emergency department, as the monitoring of pneumonia course (pneumonia progression, alveolar recruitment, mechanical ventilation weaning) and detection of secondary complications (pneumothorax, superinfection). Moreover, we describe the usefulness of LUS as a marker of the prognosis of COVID-19 pneumonia in the fourth section. Finally, the 5th part is focused on describing the interest of the LUS, as a non-ionized technique, in the management of pregnant COVID-19 women.
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Affiliation(s)
- Minh Pierre Lê
- Service de Médecine Intensive-Réanimation, Hôpital Cochin, Assistance Publique-Hôpitaux de Paris (AP-HP), Centre & Université Paris Cité, 75014 Paris, France
| | - Mathieu Jozwiak
- Service de Médecine Intensive Réanimation, Centre Hospitalier Universitaire de Nice, Hôpital l’Archet 1, 151 Route Saint Antoine de Ginestière, 06200 Nice, France
- UR2CA, Unité de Recherche Clinique Côte d’Azur, Université Côte d’Azur, 06200 Nice, France
| | - Driss Laghlam
- Service de Médecine Intensive-Réanimation, Hôpital Cochin, Assistance Publique-Hôpitaux de Paris (AP-HP), Centre & Université Paris Cité, 75014 Paris, France
- Correspondence: ; Tel.: +33-158-414-145; Fax: +33-158-412-505
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18
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Zisis G, Yang Y, Huynh Q, Whitmore K, Lay M, Wright L, Carrington MJ, Marwick TH. Nurse-Provided Lung and Inferior Vena Cava Assessment in Patients With Heart Failure. J Am Coll Cardiol 2022; 80:513-523. [PMID: 35902175 DOI: 10.1016/j.jacc.2022.04.064] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 04/01/2022] [Accepted: 04/25/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND Residual congestion detected using handheld ultrasound may be associated with increased risk of readmission and death after hospitalization for acute decompensated heart failure (ADHF). However, effective application necessitates routine use by nonexperts delivering clinical care. OBJECTIVES The objective of this study was to determine the ability of heart failure (HF) nurses to deliver a predischarge lung and inferior vena cava (IVC) assessment (LUICA) to predict 90-day outcomes. METHODS In this multisite, prospective, observational study, HF nurses scanned 240 patients with ADHF (median age: 77 years; 56% men) using a 9-zone LUICA protocol. Obtained images were reviewed by independent nurses who were blinded to clinical characteristics and outcomes. Based on a B-line cut-off of 10, patients were dichotomized as congested (n = 115) or not congested (n = 125). RESULTS Congested patients were more likely to have previous cardiac operations, long-standing HF (>6 months), and renal impairment. At 90 days, HF readmission or mortality occurred in 42 congested patients (37%) compared with 18 noncongested patients (14%). Pulmonary congestion increased at 30-day (OR: 3.86; 95% CI: 1.65-8.99; P < 0.01) and 90-day (OR: 3.42; 95% CI: 1.82-6.4; P < 0.01) HF readmission or mortality risk and 90-day mortality (OR: 5.18; 95% CI: 1.44-18.69; P < 0.01). Pulmonary congestion increased the 90-day odds of HF readmission and/or death by 3.3- to 4.2-fold (P < 0.01), independent of demographics, HF characteristics, comorbidities, and event risk score. Over 90 days, days alive out of hospital were fewer (78.3 ± 21.4 days vs 85.5 ± 12.4 days; P < 0.01) in congested patients. CONCLUSIONS LUICA can be a powerful tool for detection of predischarge residual congestion. HF nurses can obtain images and provide diagnostic reports that are predictive of ADHF outcomes.
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Affiliation(s)
- Georgios Zisis
- Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia; The University of Melbourne, Baker Department of Cardiometabolic Health, Melbourne, Victoria, Australia; Western Health, Melbourne, Victoria, Australia; The University of Melbourne, Faculty of Medicine, Dentistry and Health Sciences, Melbourne, Victoria, Australia
| | - Yang Yang
- Western Health, Melbourne, Victoria, Australia; Monash University, Melbourne, Victoria, Australia; Eastern Health, Melbourne, Victoria, Australia
| | - Quan Huynh
- Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia; The University of Melbourne, Baker Department of Cardiometabolic Health, Melbourne, Victoria, Australia
| | - Kristyn Whitmore
- Menzies Institute for Medical Research, Hobart, Tasmania, Australia
| | - Maria Lay
- Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Leah Wright
- Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia; Western Health, Melbourne, Victoria, Australia
| | - Melinda J Carrington
- Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia; The University of Melbourne, Baker Department of Cardiometabolic Health, Melbourne, Victoria, Australia
| | - Thomas H Marwick
- Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia; The University of Melbourne, Baker Department of Cardiometabolic Health, Melbourne, Victoria, Australia; Western Health, Melbourne, Victoria, Australia; The University of Melbourne, Faculty of Medicine, Dentistry and Health Sciences, Melbourne, Victoria, Australia; Monash University, Melbourne, Victoria, Australia; Menzies Institute for Medical Research, Hobart, Tasmania, Australia.
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Duggan NM, Goldsmith AJ, Saud AAA, Ma IWY, Shokoohi H, Liteplo AS. Optimizing Lung Ultrasound: The Effect of Depth, Gain and Focal Position on Sonographic B-Lines. ULTRASOUND IN MEDICINE & BIOLOGY 2022; 48:1509-1517. [PMID: 35527112 DOI: 10.1016/j.ultrasmedbio.2022.03.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 02/28/2022] [Accepted: 03/28/2022] [Indexed: 06/14/2023]
Abstract
Ultrasonographic B-lines are artifacts present in alveolar-interstitial syndromes. We prospectively investigated optimal depth, gain, focal position and transducer type for B-line visualization and image quality. B-Lines were assessed at a single rib interspace with curvilinear and linear transducers. Video clips were acquired by changing parameters: depth (6, 12, 18 and 24 cm for curvilinear transducer, 4 and 8 cm for linear transducer), gain (10%, 50% and 90%) and focal position (at the pleural line or half the scanning depth). Clips were scored for B-lines and image quality. Five hundred sixteen clips were obtained and analyzed. The curvilinear transducer improved B-line visualization (63% vs. 37%, p < 0.0001), with higher image quality (3.52 ± 0.71 vs. 3.31 ± 0.86, p = 0.0047) compared with the linear transducer. B-Lines were better visualized at higher gains (curvilinear: gain of 50% vs. 10%, odds ratio = 7.04, 95% confidence interval: 4.03-12.3; gain of 90% vs. 10%, odds ratio = 9.48, 95% confidence interval: 5.28-17.0) and with the focal point at the pleural line (odds ratio = 1.64, 95% confidence interval: 1.02-2.63). Image quality was highest at 50% gain (p = 0.02) but decreased at 90% gain (p < 0.0001) and with the focal point at the pleural line (p < 0.0001). Image quality was highest at depths of 12-18 cm. B-Lines are best visualized using a curvilinear transducer with at least 50% gain and focal position at the pleural line. Gain less than 90% and image depth between 12 and 18 cm improve image quality.
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Affiliation(s)
- Nicole M Duggan
- Harvard Emergency Ultrasound Fellowship, Division of Emergency Ultrasound, Department of Emergency Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.
| | - Andrew J Goldsmith
- Division of Emergency Ultrasound, Department of Emergency Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Ahad Alhassan Al Saud
- Division of Emergency Ultrasound, Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Irene W Y Ma
- Division of General Internal Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Hamid Shokoohi
- Division of Emergency Ultrasound, Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Andrew S Liteplo
- Division of Emergency Ultrasound, Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
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20
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Yildiz G, Hur E, Magden K, Candan F, Kayatas M, Yildirim İ, Yilmaz MB. A new technique for the detection of dry weight in hemodialysis patients: Estimated pulmonary capillary wedge pressure. A tissue Doppler imaging study. Nefrologia 2022; 42:471-480. [PMID: 36460432 DOI: 10.1016/j.nefroe.2021.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 04/04/2021] [Indexed: 06/17/2023] Open
Abstract
BACKGROUND AND OBJECTIVE Fluid overload is an important factor of morbidity and mortality in hemodialysis patients. Today correct determination of dry weight (DW) remains an important issue of hemodialysis practice. Within this context, it is subjected to new method searching. The objective of this study was to calculate estimated pulmonary capillary wedge pressure (ePCWP) with Tissue Doppler Imaging (TDI) in hemodialysis patients and to evaluate its correlation with the other volume markers and to evaluate whether it can be a new method for detection of DW. MATERIALS AND METHODS Echocardiographic, hemodynamic, and biochemical volume markers of 41 hemodialysis patients were evaluated in the pre- and post-dialysis periods. Patients were divided into two groups based on ePCWP values (Group 1 ePCWP<20mmHg, Group 2 ePCWP>20mmHg). RESULTS In the pre-dialysis period; parameters related to volume load including ePCWP, systolic blood pressure, mean arterial pressure, pulse pressure, left atrial diameter, left atrial volume, E/é, ratio and E/Vp ratio were statistically significantly higher in Group2 compared to Group1. On the other hand, strong correlations were found between pre-dialysis ePCWP and systolic blood pressure, mean arterial pressure, pulse pressure, NT-ProBNP, left atrial diameter, E/é ratio and E/Vp ratio. CONCLUSIONS Strong correlations found between ePCWP which was calculated with TDI and the other volume markers both in pre-dialysis and post-dialysis periods. These findings can provide a significant contribution to routine evaluating of DW in hemodialysis patients. From this aspect, the prediction of ePCWP with TDI can be a new practical and reproducible method for the determination of DW.
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Affiliation(s)
- Gürsel Yildiz
- Division of Dialysis, Transplantation and Nephrology, Department of Internal Medicine Istanbul Okan University, Istanbul, Turkey.
| | - Ender Hur
- Division of Nephrology, Department of Internal Medicine, Bülent Ecevit University, Zonguldak, Turkey
| | - Kemal Magden
- Division of Nephrology, Department of Internal Medicine, Bülent Ecevit University, Zonguldak, Turkey
| | - Ferhan Candan
- Division of Nephrology, Department of Internal Medicine, Cumhuriyet University, Sivas, Turkey
| | - Mansur Kayatas
- Division of Nephrology, Department of Internal Medicine, Cumhuriyet University, Sivas, Turkey
| | - İbrahim Yildirim
- Division of Nephrology, Department of Internal Medicine, Bülent Ecevit University, Zonguldak, Turkey
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21
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Boccatonda A, Cocco G, D'Ardes D, Vicari S, Schiavone C. All B-lines are equal, but some B-lines are more equal than others. J Ultrasound 2022; 26:255-260. [PMID: 35763258 PMCID: PMC9244177 DOI: 10.1007/s40477-022-00693-0] [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: 05/05/2022] [Accepted: 05/15/2022] [Indexed: 11/10/2022] Open
Abstract
In this pictorial essay the theme of the differential diagnosis between the different causes of lung interstitial disease will be discussed, which can be detected on lung ultrasound as B lines. In particular, from the experience obtained during the covid-19 pandemic, the term B line may appear too simplified, and new data in the literature show that it is necessary to update the terminology and the differential diagnosis of this ultrasound sign.
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Affiliation(s)
- Andrea Boccatonda
- Internal Medicine, Bentivoglio Hospital, AUSL Bologna, via Marconi 35, Bentivoglio, Bologna, Italy.
| | - Giulio Cocco
- Internal Medicine, "G. d'Annunzio" University, Chieti, Italy
| | - Damiano D'Ardes
- Internal Medicine, "G. d'Annunzio" University, Chieti, Italy
| | - Susanna Vicari
- Internal Medicine, Bentivoglio Hospital, AUSL Bologna, via Marconi 35, Bentivoglio, Bologna, Italy
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22
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Fuchs L, Galante O, Almog Y, Dayan RR, Smoliakov A, Ullman Y, Shamia D, Ohayon RBD, Golbets E, El Haj K, Taylor J, Weissberg I, Novack V, Barski L, Rosenberg E, Gohar E, Abed MA, Sagy I. Point of Care Lung Ultrasound Injury Score—A simple and reliable assessment tool in COVID-19 patients (PLIS I): A retrospective study. PLoS One 2022; 17:e0267506. [PMID: 35544450 PMCID: PMC9094523 DOI: 10.1371/journal.pone.0267506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 04/10/2022] [Indexed: 12/26/2022] Open
Abstract
Background In COVID-19 patients, lung ultrasound is superior to chest radiograph and has good agreement with computerized tomography to diagnose lung pathologies. Most lung ultrasound protocols published to date are complex and time-consuming. We describe a new illustrative Point-of-care ultrasound Lung Injury Score (PLIS) to help guide the care of patients with COVID-19 and assess if the PLIS would be able to predict COVID-19 patients’ clinical course. Methods This retrospective study describing the novel PLIS was conducted in a large tertiary-level hospital. COVID-19 patients were included if they required any form of respiratory support and had at least one PLIS study during hospitalization. Data collected included PLIS on admission, demographics, Sequential Organ Failure Assessment (SOFA) scores, and patient outcomes. The primary outcome was the need for intensive care unit (ICU) admission. Results A total of 109 patients and 293 PLIS studies were included in our analysis. The mean age was 60.9, and overall mortality was 18.3%. Median PLIS score was 5.0 (3.0–6.0) vs. 2.0 (1.0–3.0) in ICU and non-ICU patients respectively (p<0.001). Total PLIS scores were directly associated with SOFA scores (inter-class correlation 0.63, p<0.001), and multivariate analysis showed that every increase in one PLIS point was associated with a higher risk for ICU admission (O.R 2.09, 95% C.I 1.59–2.75) and in-hospital mortality (O.R 1.54, 95% C.I 1.10–2.16). Conclusions The PLIS for COVID-19 patients is simple and associated with SOFA score, ICU admission, and in-hospital mortality. Further studies are needed to demonstrate whether the PLIS can improve outcomes and become an integral part of the management of COVID-19 patients.
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Affiliation(s)
- Lior Fuchs
- Intensive Care Unit, Soroka University Medical Center, Beer-Sheva, Israel
- Clinical Research Center, Soroka University Medical Center, Beer-Sheva, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- * E-mail:
| | - Ori Galante
- Intensive Care Unit, Soroka University Medical Center, Beer-Sheva, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Yaniv Almog
- Intensive Care Unit, Soroka University Medical Center, Beer-Sheva, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Roy R. Dayan
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Internal Medicine Division, Soroka University Medical Center, Beer-Sheva, Israel
| | - Alexander Smoliakov
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Yuval Ullman
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - David Shamia
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Internal Medicine Division, Soroka University Medical Center, Beer-Sheva, Israel
| | - Ran Ben David Ohayon
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Internal Medicine Division, Soroka University Medical Center, Beer-Sheva, Israel
| | - Evgeny Golbets
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Internal Medicine Division, Soroka University Medical Center, Beer-Sheva, Israel
| | - Khaled El Haj
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Internal Medicine Division, Soroka University Medical Center, Beer-Sheva, Israel
| | - Jonathan Taylor
- Department of Medicine, Oregon Health & Science University, Portland, Oregon, United States of America
| | - Itai Weissberg
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Internal Medicine Division, Soroka University Medical Center, Beer-Sheva, Israel
| | - Victor Novack
- Clinical Research Center, Soroka University Medical Center, Beer-Sheva, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Leonid Barski
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Internal Medicine Division, Soroka University Medical Center, Beer-Sheva, Israel
| | - Eli Rosenberg
- Clinical Research Center, Soroka University Medical Center, Beer-Sheva, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Eyal Gohar
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Muhammad Abo Abed
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Internal Medicine Division, Soroka University Medical Center, Beer-Sheva, Israel
| | - Iftach Sagy
- Clinical Research Center, Soroka University Medical Center, Beer-Sheva, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
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Operative Use of Thoracic Ultrasound in Respiratory Medicine: A Clinical Study. Diagnostics (Basel) 2022; 12:diagnostics12040952. [PMID: 35454000 PMCID: PMC9030246 DOI: 10.3390/diagnostics12040952] [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: 03/10/2022] [Revised: 04/07/2022] [Accepted: 04/08/2022] [Indexed: 11/17/2022] Open
Abstract
For over 15 years, thoracic ultrasound has been applied in the evaluation of numerous lung diseases, demonstrating a variable diagnostic predictive power compared to traditional imaging techniques such as chest radiography and CT. However, in unselected pulmonary patients, there are no rigorous scientific demonstrations of the complementarity of thoracic ultrasound with traditional and standardized imaging techniques that use radiation. In this study 101 unselected pulmonary patients were evaluated blindly with ultrasound chest examinations during their hospital stay. Other instrumental examinations, carried out during hospitalization, were standard chest radiography, computed tomography (CT), and, when needed, radioisotopic investigation and cardiac catheterization. The operator who performed the ultrasound examinations was unaware of the anamnestic and clinical data of the patients. Diffuse fibrosing disease was detected with a sensitivity, specificity and diagnostic accuracy of 100%, 95% and 97%, respectively. In pleural effusions, ultrasound showed a sensitivity, specificity and diagnostic accuracy of 100%. In consolidations, the sensitivity, specificity and diagnostic accuracy were 83%, 98% and 93%, respectively. Low values of sensitivity were recorded for surface nodulations of less than one centimeter. Isolated subpleural ground glass densities were identified as White Lung with a sensitivity of 72% and a specificity of 86%. Only the associations Diffuse ultrasound findings/Definitive fibrosing disease, Ultrasound Consolidation/Definitive consolidation and non-diffuse ultrasound artefactual features/Definitive vascular pathology (pulmonary hypertension, embolism) were statistically significant with adjusted residuals of 7.9, 7 and 4.1, respectively. The obtained results show how chest ultrasound is an effective complementary diagnostic tool for the pulmonologist. When performed, as a complement to the patient’s physical examination, it can restrict the diagnostic hypothesis in the case of pleural effusion, consolidation and diffuse fibrosing disease of the lung.
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24
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Srinivasan S, Aggarwal N, Makhaik S, Jhobta A, Kapila S, Bhoil R. Role of lung ultrasound in diagnosing and differentiating transient tachypnea of the newborn and respiratory distress syndrome in preterm neonates. J Ultrason 2022; 22:e1-e5. [PMID: 35449705 PMCID: PMC9009341 DOI: 10.15557/jou.2022.0001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Accepted: 12/16/2021] [Indexed: 12/30/2022] Open
Abstract
Aim To evaluate the accuracy of lung ultrasound in diagnosing and differentiating transient tachypnea of the newborn and respiratory distress syndrome in preterm neonates. Material and methods This was a single-center study. From January 2020 to June 2021. A total of 100 preterm neonates, admitted to the neonatal intensive care unit with symptoms of respiratory distress within six hours of birth, including 50 diagnosed with transient tachypnea of the newborn and 50 with respiratory distress syndrome on the basis of clinical examination, laboratory testing, chest X-rays, were recruited in the study. Lung ultrasound was performed in each neonate by a senior radiologist who was blinded to the clinical diagnosis. Lung ultrasound findings in both conditions were analyzed and compared. Results Pulmonary edema manifesting as alveolar-interstitial syndrome, double lung point sign and less commonly as white out lungs in the absence of consolidation has 100% sensitivity and specificity in diagnosing transient tachypnea of the newborn. A combination of three signs of consolidation with air or fluid bronchograms, white out lungs and absent spared areas has 100% sensitivity and specificity for diagnosing respiratory distress syndrome. Double lung point sign was seen only in infants suffering from transient tachypnea of the newborn and consolidation with air or fluid bronchograms only in cases of respiratory distress syndrome. Conclusion Lung ultrasound can accurately diagnose and reliably differentiate transient tachypnea of the newborn and respiratory distress syndrome in preterm neonates. It has advantages that cannot be replicated by chest radiography. Lung ultrasound may be used as an initial screening tool.
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Affiliation(s)
- S Srinivasan
- Department of Radiology, Indira Gandhi Medical College (IGMC), Shimla, Himachal Pradesh, India
| | - Neeti Aggarwal
- Department of Radiology, Indira Gandhi Medical College (IGMC), Shimla, Himachal Pradesh, India
| | - Sushma Makhaik
- Department of Radiology, Indira Gandhi Medical College (IGMC), Shimla, Himachal Pradesh, India
| | - Anupam Jhobta
- Department of Radiology, Indira Gandhi Medical College (IGMC), Shimla, Himachal Pradesh, India
| | - Sumala Kapila
- Department of Radiology, Indira Gandhi Medical College (IGMC), Shimla, Himachal Pradesh, India
| | - Rohit Bhoil
- Department of Radiology, Indira Gandhi Medical College (IGMC), Shimla, Himachal Pradesh, India
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25
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Srinivasan SMD, Neeti AMD, Sushma MMD, Anupam JMD. Role of Lung Ultrasound in Diagnosing and Differentiating Transient Tachypnea of Newborn and Respiratory Distress Syndrome in Preterm Neonates. ADVANCED ULTRASOUND IN DIAGNOSIS AND THERAPY 2022. [DOI: 10.37015/audt.2022.210034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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26
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Kameda T, Kamiyama N, Taniguchi N. Simple Experimental Models for Elucidating the Mechanism Underlying Vertical Artifacts in Lung Ultrasound: Tools for Revisiting B-Lines. ULTRASOUND IN MEDICINE & BIOLOGY 2021; 47:3543-3555. [PMID: 34556371 DOI: 10.1016/j.ultrasmedbio.2021.08.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 08/23/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
Using simple experimental models, we evaluated the generation, configuration and echo intensity of vertical artifacts by varying the point or plane of contact and height of objects that correspond to sources of vertical artifacts in the subpleural space. We used an ultrasound gel spot to imitate the source and a block of bacon as a chest wall phantom. As the size of the point of contact between the gel spot on the polypropylene sheet and the phantom decreased by peeling the sheet, a vertical artifact measuring ≤1 cm was generated and/or extended deeper, finally reaching 10 cm in depth. Next, objects of different shapes made using gel balls were used to observe the generation of artifacts and measure and compare the echo intensity. For a given shape, the intensity was markedly higher in one model with the point of contact than in the other model with the plane of contact. With the same point or plane of contact, the echo intensity was higher in the taller model. The size of the point or plane of contact and height of the source were observed to be key factors in the generation, length and echo intensity of the artifacts.
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Affiliation(s)
- Toru Kameda
- Department of Clinical Laboratory Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan.
| | | | - Nobuyuki Taniguchi
- Department of Clinical Laboratory Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan
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27
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Roshankhah R, Karbalaeisadegh Y, Greer H, Mento F, Soldati G, Smargiassi A, Inchingolo R, Torri E, Perrone T, Aylward S, Demi L, Muller M. Investigating training-test data splitting strategies for automated segmentation and scoring of COVID-19 lung ultrasound images. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2021; 150:4118. [PMID: 34972274 PMCID: PMC8684042 DOI: 10.1121/10.0007272] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 09/21/2021] [Accepted: 09/23/2021] [Indexed: 05/18/2023]
Abstract
Ultrasound in point-of-care lung assessment is becoming increasingly relevant. This is further reinforced in the context of the COVID-19 pandemic, where rapid decisions on the lung state must be made for staging and monitoring purposes. The lung structural changes due to severe COVID-19 modify the way ultrasound propagates in the parenchyma. This is reflected by changes in the appearance of the lung ultrasound images. In abnormal lungs, vertical artifacts known as B-lines appear and can evolve into white lung patterns in the more severe cases. Currently, these artifacts are assessed by trained physicians, and the diagnosis is qualitative and operator dependent. In this article, an automatic segmentation method using a convolutional neural network is proposed to automatically stage the progression of the disease. 1863 B-mode images from 203 videos obtained from 14 asymptomatic individual,14 confirmed COVID-19 cases, and 4 suspected COVID-19 cases were used. Signs of lung damage, such as the presence and extent of B-lines and white lung areas, are manually segmented and scored from zero to three (most severe). These manually scored images are considered as ground truth. Different test-training strategies are evaluated in this study. The results shed light on the efficient approaches and common challenges associated with automatic segmentation methods.
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Affiliation(s)
- Roshan Roshankhah
- Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, North Carolina 27606, USA
| | | | | | - Federico Mento
- Ultrasound Laboratory, University of Trento, Trento, Italy
| | - Gino Soldati
- Azienda USL Toscana nord ovest Sede di Lucca, Diagnostic and Interventional Ultrasound Unit Lucca, Toscana, Italy
| | - Andrea Smargiassi
- Pulmonary Medicine Unit, Department of Medical and Surgical Sciences, Fondazione Policlinico Universitario Agostino Gemelli IRCCS. Roma, Lazio, Italy
| | - Riccardo Inchingolo
- Pulmonary Medicine Unit, Department of Medical and Surgical Sciences, Fondazione Policlinico Universitario Agostino Gemelli IRCCS. Roma, Lazio, Italy
| | | | - Tiziano Perrone
- Department of Internal Medicine, Istituto di Ricovero e Cura a Carattere Scientifico, San Matteo, Pavia, Italy
| | | | | | - Marie Muller
- Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, North Carolina 27606, USA
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28
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Development and Remodeling of Point-of-Care Ultrasound Education for Emergency Medicine Residents in Resource Limited Countries during the COVID-19 Pandemic. Tomography 2021; 7:721-733. [PMID: 34842824 PMCID: PMC8628902 DOI: 10.3390/tomography7040060] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/31/2021] [Accepted: 11/01/2021] [Indexed: 11/16/2022] Open
Abstract
The administration of an accurate and effective POCUS course is a crucial tool in improving health education and thus the health care system in low- to middle-income countries. The development of the ultrasound curriculum in these countries during the pandemic era is a major challenge for medical educators. Therefore, this study aims to survey the learner experience after implementing the POCUS curriculum for first-year emergency medicine residents. All learners responded to the survey. Our results demonstrated that the ultrasound rotation and our ultra-sound learning materials were useful tools which showed a positive impact on POCUS knowledge for our learners. However, some obstacles of POCUS learning were identified to assist in closing faculty development gaps, including the availability of handheld devices, as well as the re-modeling of the ultrasound rotation course, which should be managed according to the feedback we received. This study demonstrated a clear need for constant updates in higher education, medical program development, accuracy of local learning materials, and the explosion of virtual and online learning platforms during this decade.
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29
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Lombardi FA, Franchini R, Morello R, Casciaro E, Ianniello S, Serra M, Satriano F, Mojoli F, Mongodi S, Pignatelli D, Di Paola M, Casciaro S. A new standard scoring for interstitial pneumonia based on quantitative analysis of ultrasonographic data: A study on COVID-19 patients. Respir Med 2021; 189:106644. [PMID: 34653873 PMCID: PMC8496946 DOI: 10.1016/j.rmed.2021.106644] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 09/14/2021] [Accepted: 10/05/2021] [Indexed: 12/15/2022]
Abstract
OBJECTIVE To assess the effectiveness of 3 novel lung ultrasound (LUS)-based parameters: Pneumonia Score and Lung Staging for pneumonia staging and COVID Index, indicating the probability of SARS-CoV-2 infection. METHODS Adult patients admitted to the emergency department with symptoms potentially related to pneumonia, healthy volunteers and clinical cases from online accessible databases were evaluated. The patients underwent a clinical-epidemiological questionnaire and a LUS acquisition, following a 14-zone protocol. For each zone, a Pneumonia score from 0 to 4 was assigned by the algorithm and by an expert operator (kept blind with respect to the algorithm results) on the basis of the identified imaging signs and the patient Lung Staging was derived as the highest observed score. The output of the operator was considered as the ground truth. The algorithm calculated also the COVID Index by combining the automatically identified LUS markers with the questionnaire answers and compared with the nasopharyngeal swab results. RESULTS Overall, 556 patients were analysed. A high agreement between the algorithm assignments and the expert operator evaluations was observed, both for Pneumonia Score and Lung Staging, with the latter having sensitivity and specificity over 92% both in the discrimination between healthy/sick patients and between sick patients with mild/severe pneumonia. Regarding the COVID Index, an area under the curve of 0.826 was observed for the classification of patients with/without SARS-CoV-2. CONCLUSION The proposed methodology allowed the identification and staging of patients suffering from pneumonia with high accuracy. Moreover, it provided the probability of being infected by SARS-CoV-2.
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Affiliation(s)
| | - Roberto Franchini
- National Research Council - Institute of Clinical Physiology, Lecce, Italy
| | - Rocco Morello
- National Research Council - Institute of Clinical Physiology, Lecce, Italy
| | - Ernesto Casciaro
- National Research Council - Institute of Clinical Physiology, Lecce, Italy
| | - Stefania Ianniello
- Diagnostic Imaging Unit, National Institute for Infectious Diseases "L. Spallanzani" IRCCS, Rome, Italy
| | - Maurizio Serra
- Pneumology Unit 2, Vito Fazzi Hospital, ASL Lecce, Lecce, Italy
| | | | - Francesco Mojoli
- Department of clinical-surgical, diagnostic and pediatric sciences, Unit of anesthesia and intensive care, University of Pavia, Pavia, Italy; Anesthesia and Intensive Care, Fondazione IRCCS Policlinico S. Matteo, Pavia, Italy
| | - Silvia Mongodi
- Anesthesia and Intensive Care, Fondazione IRCCS Policlinico S. Matteo, Pavia, Italy
| | - Daniela Pignatelli
- National Research Council - Institute of Clinical Physiology, Lecce, Italy
| | - Marco Di Paola
- National Research Council - Institute of Clinical Physiology, Lecce, Italy
| | - Sergio Casciaro
- National Research Council - Institute of Clinical Physiology, Lecce, Italy
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Yildiz G, Hur E, Magden K, Candan F, Kayatas M, Yildirim İ, Yilmaz MB. A new technique for the detection of dry weight in hemodialysis patients: Estimated pulmonary capillary wedge pressure. A tissue Doppler imaging study. Nefrologia 2021; 42:S0211-6995(21)00164-8. [PMID: 34556354 DOI: 10.1016/j.nefro.2021.04.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 02/10/2021] [Accepted: 04/04/2021] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Fluid overload is an important factor of morbidity and mortality in hemodialysis patients. Today correct determination of dry weight (DW) remains an important issue of hemodialysis practice. Within this context, it is subjected to new method searching. The objective of this study was to calculate estimated pulmonary capillary wedge pressure (ePCWP) with Tissue Doppler Imaging (TDI) in hemodialysis patients and to evaluate its correlation with the other volume markers and to evaluate whether it can be a new method for detection of DW. MATERIALS AND METHODS Echocardiographic, hemodynamic, and biochemical volume markers of 41 hemodialysis patients were evaluated in the pre- and post-dialysis periods. Patients were divided into two groups based on ePCWP values (Group 1 ePCWP<20mmHg, Group 2 ePCWP>20mmHg). RESULTS In the pre-dialysis period; parameters related to volume load including ePCWP, systolic blood pressure, mean arterial pressure, pulse pressure, left atrial diameter, left atrial volume, E/é, ratio and E/Vp ratio were statistically significantly higher in Group2 compared to Group1. On the other hand, strong correlations were found between pre-dialysis ePCWP and systolic blood pressure, mean arterial pressure, pulse pressure, NT-ProBNP, left atrial diameter, E/é ratio and E/Vp ratio. CONCLUSIONS Strong correlations found between ePCWP which was calculated with TDI and the other volume markers both in pre-dialysis and post-dialysis periods. These findings can provide a significant contribution to routine evaluating of DW in hemodialysis patients. From this aspect, the prediction of ePCWP with TDI can be a new practical and reproducible method for the determination of DW.
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Affiliation(s)
- Gürsel Yildiz
- Division of Dialysis, Transplantation and Nephrology, Department of Internal Medicine Istanbul Okan University, Istanbul, Turkey.
| | - Ender Hur
- Division of Nephrology, Department of Internal Medicine, Bülent Ecevit University, Zonguldak, Turkey
| | - Kemal Magden
- Division of Nephrology, Department of Internal Medicine, Bülent Ecevit University, Zonguldak, Turkey
| | - Ferhan Candan
- Division of Nephrology, Department of Internal Medicine, Cumhuriyet University, Sivas, Turkey
| | - Mansur Kayatas
- Division of Nephrology, Department of Internal Medicine, Cumhuriyet University, Sivas, Turkey
| | - İbrahim Yildirim
- Division of Nephrology, Department of Internal Medicine, Bülent Ecevit University, Zonguldak, Turkey
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31
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Demi M. On the Replica of US Pulmonary Artifacts by Means of Physical Models. Diagnostics (Basel) 2021; 11:diagnostics11091666. [PMID: 34574007 PMCID: PMC8471862 DOI: 10.3390/diagnostics11091666] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/08/2021] [Accepted: 09/10/2021] [Indexed: 11/20/2022] Open
Abstract
Currently, the diagnostic value of the artefactual information provided by lung ultrasound images is widely recognized by physicians. In particular, the existence of a correlation between the visual characteristics of the vertical artifacts, which arise from the pleura line, and the genesis (pneumogenic or cardiogenic) of a pulmonary disorder is commonly accepted. Physicians distinguish vertical artifacts from vertical artifacts which extend to the bottom of the screen (B-lines) and common vertical artifacts from well-structured artifacts (modulated B-lines). However, the link between these visual characteristics and the causes which determine them is still unclear. Moreover, the distinction between short and long artifacts and the distinction between common and structured artifacts are not on/off, and their classification can be critical. In order to derive further information from the visual inspection of the vertical artifacts, the mechanisms which control the artifact formation must be identified. In this paper, the link between the visual characteristics of the vertical artifacts (the observed effect) and the distribution of the aerated spaces at the pleural level (the cause) is addressed. Plausible mechanisms are suggested and illustrated through experimental results.
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Affiliation(s)
- Marcello Demi
- Department of Bioengineering, Fondazione Toscana Gabriele Monasterio, 56124 Pisa, Italy
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32
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Wang A, McCabe M, Gow-Lee E, James S, Austin B, Wailes D, Dinh V, Ramsingh D. Evaluation of a survey for acute care programme directors on the utilisation of point-of-care ultrasound. Postgrad Med J 2021; 98:694-699. [PMID: 37062971 DOI: 10.1136/postgradmedj-2021-140127] [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: 03/13/2021] [Accepted: 05/21/2021] [Indexed: 12/28/2022]
Abstract
PURPOSE Point-of-care ultrasound (POCUS) is ultrasound brought to the patient's bedside and performed in 'real time' by the healthcare provider. The utility of POCUS to facilitate management of the acutely ill patient has been demonstrated for multiple pathologies. However, the integration of ultrasonography and echocardiography training into residency curriculum varies across the acute care specialties. STUDY DESIGN After an institutional review board approval, anaesthesiology, emergency medicine, family medicine, internal medicine, paediatrics and general surgery programme directors (PDs) were surveyed. The survey consisted of 11 questions evaluating the primary bedside assessment tool for common acute care situations, POCUS topics that the PDs were comfortable practising and topics that the PDs felt were useful for their specialty. Barriers to POCUS use, certification and documentation were also surveyed. RESULTS Overall, 270 PD surveys were completed. The preferred primary assessment tool for common acute care situations varied with specialty; emergency medicine PDs consistently responded that POCUS was the diagnostic modality of choice (p<0.0001). The majority of the PDs reported lack of educational opportunities as the primary barrier to learning POCUS (64%). Most PDs indicated that POCUS examinations should be documented (95.7%), and 39% reported that departmental certification would be sufficient. CONCLUSIONS This study is the first to evaluate differences in the preferred initial bedside assessment tool between the acute care specialties. Although POCUS is a superior tool for evaluating acute pathologies, disconnect between education and utilisation remains. This study highlights the need to incorporate POCUS into the acute care specialty curriculum.
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Affiliation(s)
- Annie Wang
- Department of Anesthesiology, Loma Linda University Medical Center, Loma Linda, California, USA
| | - Melissa McCabe
- Department of Anesthesiology, Loma Linda University Medical Center, Loma Linda, California, USA
| | - Esther Gow-Lee
- Department of Anesthesiology, Loma Linda University Medical Center, Loma Linda, California, USA
| | - Stephanie James
- Department of Anesthesiology, Loma Linda University Medical Center, Loma Linda, California, USA
| | - Briahnna Austin
- Department of Anesthesiology, Loma Linda University Medical Center, Loma Linda, California, USA
| | - Dustin Wailes
- Department of Anesthesiology, Loma Linda University Medical Center, Loma Linda, California, USA
| | - Vi Dinh
- Department of Emergency Medicine, Loma Linda University Medical Center, Loma Linda, California, USA
| | - Davinder Ramsingh
- Department of Anesthesiology, Loma Linda University Medical Center, Loma Linda, California, USA
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Kajal K, Premkumar M, Chaluvashetty SB, Bhujade H, Kulkarni AV. Point-of-Care Thoracic Ultrasonography in Patients With Cirrhosis and Liver Failure. Cureus 2021; 13:e15559. [PMID: 34277182 PMCID: PMC8271278 DOI: 10.7759/cureus.15559] [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] [Accepted: 06/10/2021] [Indexed: 11/06/2022] Open
Abstract
Point-of-care ultrasonography (POCUS) helps determine liver-related pathologies like an abscess, portal vein or hepatic vein thromboses, presence of ascites, site for pleural or ascitic paracentesis, and guiding biopsies. POCUS is revolutionizing the management of critically ill patients presenting with pneumonia, acute respiratory distress syndrome, acute-on-chronic liver failure, and in the emergency. The objectives of thoracic ultrasonography (TUS) are to aid the clinician in differentiating between pneumonia, effusions, interstitial edema and collections, and in estimating the volume status of patients with liver disease using inferior vena cava dynamic indices. The use of POCUS in patients with cirrhosis has since evolved. It is now widely used to help diagnose volume status, left ventricular diastolic dysfunction, myocardial infarction, and right ventricular dilation due to pulmonary embolism and to determine the causes for weaning failures such as effusions, lung collapse, and pneumothorax. During the Coronavirus Disease 2019 (COVID-19) pandemic, moving patients for computed tomography can be difficult. Therefore, TUS is now essential in liver transplantation and intensive care practice to assess ventilatory pressures, cardiac function, and fluid management. This review indicates the current and optimized use of TUS, offers a practical guide on TUS in the liver intensive care unit (ICU), and presents a diagnostic pathway for determining lung and pleural pathology, resolution of respiratory failure, and aid weaning from mechanical ventilation.
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Affiliation(s)
- Kamal Kajal
- Anesthesia and Critical Care, Post Graduate Institute of Medical Education & Research, Chandigarh, IND
| | - Madhumita Premkumar
- Hepatology, Post Graduate Institute of Medical Education & Research, Chandigarh, IND
| | | | - Harish Bhujade
- Radiodiagnosis, Post Graduate Institute of Medical Education & Research, Chandigarh, IND
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Bashir K, Azad AM, Hereiz A, Bashir MT, Masood M, Elmoheen A. Current Use, Perceived Barriers, and Learning Preference of Point of Care Ultrasound (POCUS) in the Emergency Medicine in Qatar - A Mixed Design. Open Access Emerg Med 2021; 13:177-182. [PMID: 34040459 PMCID: PMC8140913 DOI: 10.2147/oaem.s304153] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 04/19/2021] [Indexed: 11/23/2022] Open
Abstract
Introduction Point of care ultrasound (POCUS) has been a part of emergency medicine (EM) training for almost two decades. EM training program has a very broad and rigorous POCUS curricula which, in several cases, does not translate to routine application in clinical settings. This study therefore sought to compare the indications, utilization, barriers, and preferred POCUS educational method in a large Middle Eastern academic EM. Methodology A validated questionnaire was emailed to 50 EM faculties between April and May 2019. Volunteer faculty members partook in a semi-structured interview to better understand the indications, current use, barriers, and preferred learning method. Responses were anonymous, and data were analyzed with descriptive statistics. Results This was a mixed design study. 30/50 (60%) of faculty responded to the survey, with a mean age of 39.2 years and a mean number of years in practice, 13.1. 55% (n=28) completed POCUS training in less than five years, while 45% completed more than five years ago and 5% never completed it. Forty percent of EM physicians were trained in Africa, while 55% were qualified in Asia and 5% completed their training in Europe. The indications and frequently performed procedures were consistent with the previous research. The common barrier reported was lack of time, lack of credentialing, lack of quality assurance, and national guidelines. The majority of the faculty preferred a blended learning approach for POCUS. Conclusion POCUS perceived barriers to its full use include time constraints, lack of national guidelines, and credentialing (awarding POCUS qualifications) of the faculty. Blended learning appears to be the preferred approach towards acquiring the knowledge and skills of POCUS.
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Affiliation(s)
- Khalid Bashir
- Department of Emergency Medicine, Hamad General Hospital, Doha, Qatar
| | | | - Ayman Hereiz
- Department of Emergency Medicine, Hamad General Hospital, Doha, Qatar
| | | | - Maarij Masood
- Department of Emergency Medicine, Hamad General Hospital, Doha, Qatar
| | - Amr Elmoheen
- Department of Emergency Medicine, Hamad General Hospital, Doha, Qatar
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Suarez J, Niyyar VD. Lung Ultrasound: A "Biomarker" for Fluid Overload? Adv Chronic Kidney Dis 2021; 28:200-207. [PMID: 34906304 DOI: 10.1053/j.ackd.2021.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 02/18/2021] [Accepted: 03/09/2021] [Indexed: 11/11/2022]
Abstract
Fluid overload is associated with poor outcomes in patients with acute kidney injury as well as end-stage kidney disease. Lung ultrasound (LUS) has been used in many different settings and specialties including the emergency department, intensive care unit, trauma, cardiology, and nephrology. Although LUS has been a valuable tool in assessing pulmonary congestion, LUS findings may not always be pathognomonic for pulmonary congestion. Furthermore, the feasibility of doing an extensive LUS examination as has been done in research studies may be hard to implement within the clinical setting. This review will go over the use of LUS to evaluate for fluid overload, compare LUS with other markers of fluid overload, review limitations of LUS, and suggest potential future directions in the use of LUS in nephrology.
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Wiley BM, Zhou B, Pandompatam G, Zhou J, Kucuk HO, Zhang X. Lung Ultrasound Surface Wave Elastography for Assessing Patients With Pulmonary Edema. IEEE Trans Biomed Eng 2021; 68:3417-3423. [PMID: 33848239 DOI: 10.1109/tbme.2021.3072891] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
B-Mode ultrasound insonation of lungs that are dense with extravascular lung water (EVLW) produces characteristic reverberation artifacts termed B-lines. The number of B-lines present demonstrates reasonable correlation to the amount of EVLW. However, analysis of B-line artifacts generated by this modality is semi-quantitative relying on visual interpretation, and as a result, can be subject to inter-observer variability. The purpose of this study was to translate the use of a novel, quantitative lung ultrasound surface wave elastography technique (LUSWE) into the bedside assessment of pulmonary edema in patients admitted with acute congestive heart failure. B-mode lung ultrasound and LUSWE assessment of the lungs were performed using anterior and lateral intercostal spaces in the supine patient. 14 patients were evaluated at admission with reassessment performed 1-2 days after initiation of diuretic therapy. Each exam recorded the total lung B-lines, lung surface wave speeds (at 100, 150, and 200 Hz) and net fluid balance. The patient cohort experienced effective diuresis (average net fluid balance of negative 2.1 liters) with corresponding decrease in pulmonary edema visualized by B-mode ultrasound (average decrease of 13 B-Lines). In addition, LUSWE demonstrated a statistically significant reduction in the magnitude of wave speed from admission to follow-up. The reduction in lung surface wave speed suggests a decrease in lung stiffness (decreased elasticity) mediated by successful reduction of pulmonary edema. In summary, LUSWE is a noninvasive technique for quantifying elastic properties of superficial lung tissue that may prove useful as a diagnostic test, performed at the bedside, for the quantitative assessment of pulmonary edema.
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Davidsen JR, Laursen CB, Højlund M, Lund TK, Jeschke KN, Iversen M, Kalhauge A, Bendstrup E, Carlsen J, Perch M, Henriksen DP, Schultz HHL. Lung Ultrasound to Phenotype Chronic Lung Allograft Dysfunction in Lung Transplant Recipients. A Prospective Observational Study. J Clin Med 2021; 10:jcm10051078. [PMID: 33807615 PMCID: PMC7961975 DOI: 10.3390/jcm10051078] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/02/2021] [Accepted: 03/04/2021] [Indexed: 11/22/2022] Open
Abstract
Background: Bronchiolitis obliterans syndrome (BOS) and restrictive allograft syndrome (RAS) are two distinct phenotypes of chronic lung allograft dysfunction (CLAD) in lung transplant (LTx) recipients. Contrary to BOS, RAS can radiologically present with a pleuroparenchymal fibroelastosis (PPFE) pattern. This study investigates lung ultrasound (LUS) to identify potential surrogate markers of PPFE in order to distinguish CLAD phenotype RAS from BOS. Methods: A prospective cohort study performed at a National Lung Transplantation Center during June 2016 to December 2017. Patients were examined with LUS and high-resolution computed tomography of the thorax (HRCT). Results: Twenty-five CLAD patients (72% males, median age of 54 years) were included, corresponding to 19/6 BOS/RAS patients. LUS-identified pleural thickening was more pronounced in RAS vs. BOS patients (5.6 vs. 2.9 mm) compatible with PPFE on HRCT. LUS-identified pleural thickening as an indicator of PPFE in RAS patients’ upper lobes showed a sensitivity of 100% (95% CI; 54–100%), specificity of 100% (95% CI; 82–100%), PPV of 100% (95% CI; 54–100%), and NPV of 100% (95% CI; 82–100%). Conclusion: Apical pleural thickening detected by LUS and compatible with PPFE on HRCT separates RAS from BOS in patients with CLAD. We propose LUS as a supplementary tool for initial CLAD phenotyping.
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Affiliation(s)
- Jesper Rømhild Davidsen
- South Danish Center for Interstitial Lung Diseases (SCILS), Odense University Hospital, 5000 Odense, Denmark;
- Department of Respiratory Medicine, Odense University Hospital, 5000 Odense, Denmark
- Odense Respiratory Research Unit (ODIN), Department of Clinical Research, University of Southern Denmark, 5000 Odense, Denmark
- Odense Patient Data Explorative Network, Odense University Hospital, 5000 Odense, Denmark
- Correspondence: ; Tel.: +45-215-712-92
| | - Christian B. Laursen
- South Danish Center for Interstitial Lung Diseases (SCILS), Odense University Hospital, 5000 Odense, Denmark;
- Department of Respiratory Medicine, Odense University Hospital, 5000 Odense, Denmark
- Odense Respiratory Research Unit (ODIN), Department of Clinical Research, University of Southern Denmark, 5000 Odense, Denmark
| | - Mikkel Højlund
- Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, 5000 Odense, Denmark (D.P.H.)
| | - Thomas Kromann Lund
- Department of Cardiology, Section for Lung Transplantation, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark; (T.K.L.); (M.I.); (J.C.); (M.P.); (H.H.L.S.)
| | - Klaus Nielsen Jeschke
- Department of Respiratory Medicine, Copenhagen University Hospital, Hvidovre Hospital, 2650 Hvidovre, Denmark;
| | - Martin Iversen
- Department of Cardiology, Section for Lung Transplantation, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark; (T.K.L.); (M.I.); (J.C.); (M.P.); (H.H.L.S.)
| | - Anna Kalhauge
- Department of Radiology, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark;
| | - Elisabeth Bendstrup
- Center for Rare Lung Diseases, Department Respiratory Diseases and Allergy, Aarhus University Hospital, 8200 Aarhus, Denmark;
| | - Jørn Carlsen
- Department of Cardiology, Section for Lung Transplantation, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark; (T.K.L.); (M.I.); (J.C.); (M.P.); (H.H.L.S.)
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Michael Perch
- Department of Cardiology, Section for Lung Transplantation, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark; (T.K.L.); (M.I.); (J.C.); (M.P.); (H.H.L.S.)
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Daniel Pilsgaard Henriksen
- Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, 5000 Odense, Denmark (D.P.H.)
| | - Hans Henrik Lawaetz Schultz
- Department of Cardiology, Section for Lung Transplantation, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark; (T.K.L.); (M.I.); (J.C.); (M.P.); (H.H.L.S.)
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Giannese D, Puntoni A, Cupisti A, Morganti R, Varricchio E, D'Alessandro C, Mannucci C, Serio P, Egidi MF. Lung ultrasound and BNP to detect hidden pulmonary congestion in euvolemic hemodialysis patients: a single centre experience. BMC Nephrol 2021; 22:36. [PMID: 33478424 PMCID: PMC7818920 DOI: 10.1186/s12882-020-02210-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 12/14/2020] [Indexed: 12/26/2022] Open
Abstract
Background Dry weight assessment in hemodialysis (HD) remains a challenge. The aim of the study was to investigate the prevalence of subclinical pulmonary congestion using lung ultrasound (LUS) in maintenance HD patients with no clinical or bioimpedance signs of hyperhydration. The correlation between B-lines Score (BLS) and brain natriuretic peptide (BNP) was also evaluated. Methods Twenty-four HD patients underwent LUS and BNP dosage at the end of the mid-week HD session, monthly for 6 months . LUS was considered as positive when BLS was >15. Hospitalizations and cardiovascular events were also evaluated in relation to the BLS. Results LUS+ patients at baseline were 16 (67%), whereas 11 (46%) showed LUS + in at least 50% of the measurements (rLUS+ patients). Only the rLUS+ patients had a higher number of cardiovascular events [p=0.019, OR: 7.4 (CI 95%. 1.32-39.8)] and hospitalizations [p=0.034, OR 5.5 (CI 95% 1.22- 24.89)]. A BNP level of 165 pg/ml was identified as cut-off value for predicting pulmonary congestion, defined by BLS >15. Conclusion Prevalence of pulmonary congestion as assessed by LUS and persistent or recurrent BLS >15 were quite prevalent findings in euvolemic HD patients. In the patients defined as rLUS+, a higher rate of cardiovascular events and hospital admissions was registered. BNP serum levels > 165 pg/ml resulted predictive of pulmonary congestion at LUS. In the dialysis care, regular LUS examination should be reasonably included among the methods useful to detect subclinical lung congestion and to adjust patients’ dry weight.
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Affiliation(s)
| | - Alessandro Puntoni
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 67, 56126, Pisa, Italy
| | - Adamasco Cupisti
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 67, 56126, Pisa, Italy.
| | | | - Enrico Varricchio
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 67, 56126, Pisa, Italy
| | - Claudia D'Alessandro
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 67, 56126, Pisa, Italy
| | - Claudia Mannucci
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 67, 56126, Pisa, Italy
| | - Piera Serio
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 67, 56126, Pisa, Italy
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Toro MS, Martínez JLV, Falcão RV, Prata-Barbosa A, Cunha AJLAD. Point-of-care ultrasound by the pediatrician in the diagnosis and follow-up of community-acquired pneumonia. J Pediatr (Rio J) 2021; 97:13-21. [PMID: 32781037 PMCID: PMC9432299 DOI: 10.1016/j.jped.2020.07.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 07/03/2020] [Accepted: 07/06/2020] [Indexed: 12/26/2022] Open
Abstract
OBJECTIVES To review, analyze, and present the available evidence on the usefulness of point-of-care pulmonary ultrasound in the diagnosis and monitoring of community-acquired pneumonia (CAP), aiming to facilitate its potential inclusion into pediatric clinical reference guidelines. SOURCE OF DATA A non-systematic research was carried out in the MEDLINE (PubMed), LILACS, and SciELO databases, from January 1985 to September 2019. The articles that were considered the most relevant were selected. SYNTHESIS OF DATA CAP is a relevant cause of morbidity and mortality in pediatrics and its clinical management remains a major challenge. The systematic use of chest X-ray for its diagnosis is controversial because it exposes the child to ionizing radiation and there are interobserver differences in its interpretation. Recently, the use of point-of-care pulmonary ultrasound by the pediatrician has been presented as an alternative for the diagnosis and monitoring of CAP. A great deal of evidence has disclosed its high sensitivity and diagnostic specificity, with the advantages of no ionizing radiation, relatively low cost, immediate results, portability, and the possibility of repetition according to the requirements of disease evolution. Moreover, its use can help rule out possible bacterial etiology and thus prevent inappropriate antibiotic treatments that favor bacterial resistance. CONCLUSIONS Point-of-care ultrasonography represents an opportunity to improve the diagnosis and monitoring of CAP. However, as an operator-dependent technique, training is required for adequate image acquisition, correct interpretation, and integration with clinical data for correct decision-making.
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Affiliation(s)
| | | | - Ricardo Viana Falcão
- Pediatric ICU, Hospital Geral Dr. Waldemar Alcântara (HGWA), Fortaleza, CE, Brazil
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Zhou B, Yang X, Zhang X, Curran WJ, Liu T. Ultrasound Elastography for Lung Disease Assessment. IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 2020; 67:2249-2257. [PMID: 32970595 PMCID: PMC8544928 DOI: 10.1109/tuffc.2020.3026536] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 09/20/2020] [Indexed: 06/11/2023]
Abstract
Ultrasound elastography (US-E) is a noninvasive, safe, cost-effective and reliable technique to assess the mechanical properties of soft tissue and provide imaging biomarkers for pathological processes. Many lung diseases such as acute respiratory distress syndrome, chronic obstructive pulmonary disease, and interstitial lung disease are associated with dramatic changes in mechanical properties of lung tissues. Nevertheless, US-E is rarely used to image the lung because it is filled with air. The large difference in acoustic impedance between air and lung tissue results in the reflection of the ultrasound wave at the lung surface and, consequently, the loss of most ultrasound energy. In recent years, there has been an increasing interest in US-E applications in evaluating lung diseases. This article provides a comprehensive review of the technological advances of US-E research on lung disease diagnosis. We introduce the basic principles and major techniques of US-E and provide information on various applications in lung disease assessment. Finally, the potential applications of US-E to the diagnosis of COVID-19 pneumonia is discussed.
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Affiliation(s)
- Boran Zhou
- Department of Radiation OncologyEmory UniversityAtlantaGA30322USA
- Winship Cancer Institute, Emory UniversityAtlantaGA30322USA
| | - Xiaofeng Yang
- Department of Radiation OncologyEmory UniversityAtlantaGA30322USA
- Winship Cancer Institute, Emory UniversityAtlantaGA30322USA
| | | | - Walter J. Curran
- Department of Radiation OncologyEmory UniversityAtlantaGA30322USA
- Winship Cancer Institute, Emory UniversityAtlantaGA30322USA
| | - Tian Liu
- Department of Radiation OncologyEmory UniversityAtlantaGA30322USA
- Winship Cancer Institute, Emory UniversityAtlantaGA30322USA
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Utility of Different Lung Ultrasound Simulation Modalities Used by Paramedics during Varied Ambulance Driving Conditions. Prehosp Disaster Med 2020; 36:42-46. [PMID: 33109288 DOI: 10.1017/s1049023x20001247] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
INTRODUCTION Prehospital use of lung ultrasound (LUS) by paramedics to guide the diagnoses and treatment of patients has expanded over the past several years. However, almost all of this education has occurred in a classroom or hospital setting. No published prehospital use of LUS simulation software within an ambulance currently exists. STUDY OBJECTIVE The objective of this study was to determine if various ambulance driving conditions (stationary, constant acceleration, serpentine, and start-stop) would impact paramedics' abilities to perform LUS on a standardized patient (SP) using breath-holding to simulate lung pathology, or to perform LUS using ultrasound (US) simulation software. Primary endpoints included the participating paramedics': (1) time to acquiring a satisfactory simulated LUS image; and (2) accuracy of image recognition and interpretation. Secondary endpoints for the breath-holding portion included: (1) the agreement between image interpretation by paramedic versus blinded expert reviewers; and (2) the quality of captured LUS image as determined by two blinded expert reviewers. Finally, a paramedic LUS training session was evaluated by comparing pre-test to post-test scores on a 25-item assessment requiring the recognition of a clinical interpretation of prerecorded LUS images. METHODS Seventeen paramedics received a 45-minute LUS lecture. They then performed 25 LUS exams on both SPs and using simulation software, in each case looking for lung sliding, A and B lines, and seashore or barcode signs. Pre- and post-training, they completed a 25-question test consisting of still images and videos requiring pathology recognition and formulation of a clinical diagnosis. Sixteen paramedics performed the same exams in an ambulance during different driving conditions (stationary, constant acceleration, serpentines, and abrupt start-stops). Lung pathology was block randomized based on driving condition. RESULTS Paramedics demonstrated improved post-test scores compared to pre-test scores (P <.001). No significant difference existed across driving conditions for: time needed to obtain a simulated image; clinical interpretation of simulated LUS images; quality of saved images; or agreement of image interpretation between paramedics and blinded emergency physicians (EPs). Image acquisition time while parked was significantly greater than while the ambulance was driving in serpentines (Z = -2.898; P = .008). Technical challenges for both simulation techniques were noted. CONCLUSION Paramedics can correctly acquire and interpret simulated LUS images during different ambulance driving conditions. However, simulation techniques better adapted to this unique work environment are needed.
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Mohamed MFH, Malewicz NM, Zehry HI, Hussain DAM, Barouh JL, Cançado AV, Silva JS, Suwileh S, Carvajal JR. Fluid Administration in Emergency Room Limited by Lung Ultrasound in Patients with Sepsis: Protocol for a Prospective Phase II Multicenter Randomized Controlled Trial. JMIR Res Protoc 2020; 9:e15997. [PMID: 32657759 PMCID: PMC7481877 DOI: 10.2196/15997] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 04/10/2020] [Accepted: 04/15/2020] [Indexed: 12/28/2022] Open
Abstract
Background Sepsis remains a major health challenge with high mortality. Adequate volume administration is fundamental for a successful outcome. However, individual fluid needs differ between patients due to varying degrees of systemic vasodilation, circulatory flow maldistribution, and increased vascular permeability. The current fluid resuscitation practice has been questioned. Fluid overload is associated with higher mortality in sepsis. A sign of fluid overload is extravascular lung water, seen as B lines in lung ultrasound. B lines correlate inversely with oxygenation (measured by a ratio of the partial pressure of arterial oxygen to the fraction of inspired oxygen ie, PaO2/FiO2). Thus, B lines seen by bedside ultrasound may have a role in guiding fluid therapy. Objective We aim to evaluate if fluid administration guided by lung ultrasound in patients with sepsis in emergency departments will lead to better oxygenation and patient outcomes than those in the standard therapy. Methods A phase II, multicenter, randomized, open-label, parallel-group, superiority trial will be performed. Patients will be recruited at emergency departments of the participating centers. A total of 340 patients will be randomly allocated to the intervention or standard-of-care group (30mL/kg). The intervention group will receive ultrasound-guided intravenous fluid until 3 B lines appear. The primary outcome will be oxygenation (measured as PaO2/FiO2 ratio) at 48 hours after starting intravenous fluid administration. Secondary outcomes will be patients’ outcome parameters, including oxygenation after 15 mL/kg fluid at 6, 12, 24, and 48 hours; sepsis progress through Sequential Organ Failure Assessment (SOFA) scores; pulmonary edema evaluation; and 30-day mortality. Results The trial will be conducted in accordance with the Declaration of Helsinki. Institutional review board approval will be sought after the participating sites are selected. The protocol will be registered once the institutional review board approval is granted. The trial duration is expected to be 1.5-2.5 years. The study is planned to be performed from 2021 to 2022, with enrollment starting in 2021. First results are expected in 2022. Informed written consent will be obtained before the patient’s enrollment in the study. An interim analysis and data monitoring will ensure the patient safety. The results will be published in a peer-reviewed journal and discussed at international conferences. Conclusions This is a protocol for a randomized control trial that aims to evaluate the role of bedside ultrasound in guiding fluid therapy in patients with sepsis via B lines evaluation. International Registered Report Identifier (IRRID) PRR1-10.2196/15997
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Affiliation(s)
- Mouhand F H Mohamed
- Department of General Internal Medicine, Hamad Medical Corporation, Doha, Qatar
| | - Nathalie M Malewicz
- Department of Anesthesiology, Yale University School of Medicine, New Haven, CT, United States.,Intensive Care Medicine and Pain Management, Department of Anaesthesiology, Medical Faculty of Ruhr-University, Bochum, Germany
| | - Hanan Ibrahim Zehry
- Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital and Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States.,Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.,Faculty of Nursing, Suez Canal University, Ismailia, Egypt
| | | | - Judah Leão Barouh
- Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital and Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
| | - Adriana V Cançado
- Radiology Department, Santa Casa Belo Horizonte, Belo Horizonte, Brazil
| | - Jeancarllo Sousa Silva
- Division of Oncological Surgery, State University of Amazonas, Manaus, Brazil.,Division of Oncological Surgery, Getulio Vargas University Hospital, Amazonas, Brazil
| | - Salah Suwileh
- Department of General Internal Medicine, Hamad Medical Corporation, Doha, Qatar
| | - Jose Retamal Carvajal
- Faculty Of Emergency Medicine, Universidad Del Desarrollo-Clinica Alemana De Santiago, Santiago, Chile
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Recommendations for Lung Ultrasound in Internal Medicine. Diagnostics (Basel) 2020; 10:diagnostics10080597. [PMID: 32824302 PMCID: PMC7460159 DOI: 10.3390/diagnostics10080597] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 08/07/2020] [Accepted: 08/10/2020] [Indexed: 12/11/2022] Open
Abstract
A growing amount of evidence prompts us to update the first version of recommendations for lung ultrasound in internal medicine (POLLUS-IM) that was published in 2018. The recommendations were established in several stages, consisting of: literature review, assessment of literature data quality (with the application of QUADAS, QUADAS-2 and GRADE criteria) and expert evaluation carried out consistently with the modified Delphi method (three rounds of on-line discussions, followed by a secret ballot by the panel of experts after each completed discussion). Publications to be analyzed were selected from the following databases: Pubmed, Medline, OVID, and Embase. New reports published as of October 2019 were added to the existing POLLUS-IM database used for the original publication of 2018. Altogether, 528 publications were systematically reviewed, including 253 new reports published between September 2017 and October 2019. The new recommendations concern the following conditions and issues: pneumonia, heart failure, monitoring dialyzed patients' hydration status, assessment of pleural effusion, pulmonary embolism and diaphragm function assessment. POLLUS-IM 2020 recommendations were established primarily for clinicians who utilize lung ultrasound in their everyday clinical work.
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Rangelov BA, Young AL, Jacob J, Cahn AP, Lee S, Wilson FJ, Hawkes DJ, Hurst JR. Thoracic Imaging at Exacerbation of Chronic Obstructive Pulmonary Disease: A Systematic Review. Int J Chron Obstruct Pulmon Dis 2020; 15:1751-1787. [PMID: 32801677 PMCID: PMC7385406 DOI: 10.2147/copd.s250746] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 05/03/2020] [Indexed: 01/20/2023] Open
Abstract
Exacerbations of chronic obstructive pulmonary disease (COPD) are currently diagnosed based on changes in respiratory symptoms. Characterizing the imaging manifestation of exacerbations could be useful for objective diagnosis of exacerbations in the clinic and clinical trials, as well as provide a mechanism for monitoring exacerbation treatment and recovery. In this systematic review, we employed a comprehensive search across three databases (Medline, EMBASE, Web of Science) to identify studies that performed imaging of the thorax at COPD exacerbation. We included 51 from a total of 5,047 articles which met all our inclusion criteria. We used an adapted version of the Modified Newcastle-Ottawa Quality Assessment Scale for cohort studies to assess the quality of the included studies. Conclusions were weighted towards higher-quality articles. We identified a total of 36 thoracic imaging features studied at exacerbation of COPD. Studies were generally heterogeneous in their measurements and focus. Nevertheless, considering studies which performed consecutive imaging at stable state and exacerbation, which scored highest for quality, we identified salient imaging biomarkers of exacerbations. An exacerbation is characterized by airway wall and airway calibre changes, hyperinflation, pulmonary vasoconstriction and imaging features suggestive of pulmonary arterial hypertension. Most information was gained from CT studies. We present the first ever composite imaging signature of COPD exacerbations. While imaging during an exacerbation is comparatively new and not comprehensively studied, it may uncover important insights into the acute pathophysiologic changes in the cardiorespiratory system during exacerbations of COPD, providing objective confirmation of events and a biomarker of recovery and treatment response.
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Affiliation(s)
- Bojidar A Rangelov
- Centre for Medical Image Computing, Department of Medical Physics and Biomedical Engineering, University College London, London, UK
| | - Alexandra L Young
- Centre for Medical Image Computing, Department of Medical Physics and Biomedical Engineering, University College London, London, UK.,Department of Computer Science, University College London, London, UK.,Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Joseph Jacob
- Centre for Medical Image Computing, Department of Medical Physics and Biomedical Engineering, University College London, London, UK.,UCL Respiratory, University College London, London, UK
| | | | | | | | - David J Hawkes
- Centre for Medical Image Computing, Department of Medical Physics and Biomedical Engineering, University College London, London, UK
| | - John R Hurst
- UCL Respiratory, University College London, London, UK
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Marini C, Fragasso G, Italia L, Sisakian H, Tufaro V, Ingallina G, Stella S, Ancona F, Loiacono F, Innelli P, Costantino MF, Sahakyan L, Gabrielyan S, Avetisyan M, Margonato A, Agricola E. Lung ultrasound-guided therapy reduces acute decompensation events in chronic heart failure. Heart 2020; 106:1934-1939. [PMID: 32571960 DOI: 10.1136/heartjnl-2019-316429] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 04/14/2020] [Accepted: 04/14/2020] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE Pulmonary congestion is the main cause of hospital admission in patients with heart failure (HF). Lung ultrasound (LUS) is a useful tool to identify subclinical pulmonary congestion. We evaluated the usefulness of LUS in addition to physical examination (PE) in the management of outpatients with HF. METHODS In this randomised multicentre unblinded study, patients with chronic HF and optimised medical therapy were randomised in two groups: 'PE+LUS' group undergoing PE and LUS and 'PE only' group. Diuretic therapy was modified according to LUS findings and PE, respectively. The primary endpoint was the reduction in hospitalisation rate for acute decompensated heart failure (ADHF) at 90-day follow-up. Secondary endpoints were reduction in NT-proBNP, quality-of-life test (QLT) and cardiac mortality at 90-day follow-up. RESULTS A total of 244 patients with chronic HF and optimised medical therapy were enrolled and randomised in 'PE+LUS' group undergoing PE and LUS, and in 'PE only' group. Thirty-seven primary outcome events occurred. The hospitalisation for ADHF at 90 day was significantly reduced in 'PE+LUS' group (9.4% vs 21.4% in 'PE only' group; relative risk=0.44; 95% CI 0.23 to 0.84; p=0.01), with a reduction of risk for hospitalisation for ADHF by 56% (p=0.01) and a number needed to treat of 8.4 patients (95% CI 4.8 to 34.3). At day 90, NT-proBNP and QLT score were significantly reduced in 'PE+LUS' group, whereas in 'PE only' group both were increased. There were no differences in mortality between the two groups. CONCLUSIONS LUS-guided management reduces hospitalisation for ADHF at mid-term follow-up in outpatients with chronic HF.
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Affiliation(s)
- Claudia Marini
- Cardiovascular Imaging Unit, San Raffaele Scientific Institute, Milan, Italy
| | - Gabriele Fragasso
- Heart Failure Clinic, Clinical Cardiology, San Raffaele Scientific Institute, Milan, Italy
| | - Leonardo Italia
- Cardiovascular Imaging Unit, San Raffaele Scientific Institute, Milan, Italy
| | - Hamayak Sisakian
- Department of Cardiology, Yerevan State Medical University, University Hospital 1, Yerevan, Armenia
| | - Vincenzo Tufaro
- Cardiovascular Imaging Unit, San Raffaele Scientific Institute, Milan, Italy
| | - Giacomo Ingallina
- Cardiovascular Imaging Unit, San Raffaele Scientific Institute, Milan, Italy
| | - Stefano Stella
- Cardiovascular Imaging Unit, San Raffaele Scientific Institute, Milan, Italy
| | - Francesco Ancona
- Cardiovascular Imaging Unit, San Raffaele Scientific Institute, Milan, Italy
| | - Ferdinando Loiacono
- Heart Failure Clinic, Clinical Cardiology, San Raffaele Scientific Institute, Milan, Italy
| | - Pasquale Innelli
- SSD Imaging Cardiovascular Department, San Carlo Hospital, Potenza, Italy
| | | | - Laura Sahakyan
- Department of Cardiology, Yerevan State Medical University, University Hospital 1, Yerevan, Armenia
| | - Sirvard Gabrielyan
- Department of Cardiology, Yerevan State Medical University, University Hospital 1, Yerevan, Armenia
| | - Mariam Avetisyan
- Department of Cardiology, Yerevan State Medical University, University Hospital 1, Yerevan, Armenia
| | - Alberto Margonato
- Heart Failure Clinic, Clinical Cardiology, San Raffaele Scientific Institute, Milan, Italy.,Vita-Salute San Raffaele University, Milan, Italy
| | - Eustachio Agricola
- Cardiovascular Imaging Unit, San Raffaele Scientific Institute, Milan, Italy.,Vita-Salute San Raffaele University, Milan, Italy
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46
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Lung point-of-care ultrasound, an opportunity to improve patient care and patient-oriented outcomes. CAN J EMERG MED 2020; 22:271-272. [DOI: 10.1017/cem.2020.52] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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47
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Abstract
The emergency room is a principal entrance for the initial management of patients with acute heart failure. Echocardiography may be performed by cardiologists and noncardiologists in the emergency room. Echocardiographic studies require effective technical skills and precise diagnostic knowledge. This article contributes to physicians in the emergency room, general practitioners in training, and medical staff who engage in emergency medicine. This article emphasized the role of echocardiography in light of pathophysiology of acute heart failure in the emergency room and refining the clinical workflow by integrating conventional and innovative knowledge for the initial management of acute heart failure.
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Affiliation(s)
- Masataka Sugahara
- JCHO Hoshigaoka Medical Center, 4-8-1 Hoshigaoka, Hirakata, Osaka 573-8511, Japan
| | - Tohru Masuyama
- JCHO Hoshigaoka Medical Center, 4-8-1 Hoshigaoka, Hirakata, Osaka 573-8511, Japan.
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48
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Demi M, Prediletto R, Soldati G, Demi L. Physical Mechanisms Providing Clinical Information From Ultrasound Lung Images: Hypotheses and Early Confirmations. IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 2020; 67:612-623. [PMID: 31670665 DOI: 10.1109/tuffc.2019.2949597] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
In standard B mode imaging, a set of ultrasound pulses is used to reconstruct a 2-D image even though some of the assumptions needed to do this are not fully satisfied. For this reason, ultrasound medical images show numerous artifacts which physicians recognize and evaluate as part of their diagnosis since even one artifact can provide clinical information. Understanding the physical mechanisms at the basis of the formation of an artifact is important to identify the physiopathological state of the biological medium which generated the artifact. Ultrasound lung images are a significant example of this challenge since everything that is represented beyond the thickness of the chest wall ( ≈ 2 cm) is artifactual information. A convincing physical explanation of the genesis of important ultrasound lung artifacts does not exist yet. Physicians simply base their diagnosis on a correlation observed over the years between the manifestation of some artifacts and the occurrence of particular lung pathologies. In this article, a plausible genesis of some important lung artifacts is suggested.
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49
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Sonographic Assessment of Intravascular Fluid Estimate (SAFE) Score by Using Bedside Ultrasound in the Intensive Care Unit. Crit Care Res Pract 2020; 2020:9719751. [PMID: 32185080 PMCID: PMC7060409 DOI: 10.1155/2020/9719751] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 01/06/2020] [Accepted: 02/01/2020] [Indexed: 12/03/2022] Open
Abstract
Objective The objective of the study was to use an ultrasound-based numerical scoring system for assessment of intravascular fluid estimate (SAFE) and test its validity. Methods A prospective, observational study was carried out in the surgical intensive care unit (ICU) of an urban tertiary care teaching hospital. Patient's intravascular volume status was assessed using the standard methods of heart rate, blood pressure, central venous pressure, cardiac output, lactate and saturation of venous oxygen, and others. This was compared with assessment using bedside ultrasound evaluation of the cardiac function, inferior vena cava, lungs, and the internal jugular vein. Applying a numerical scoring system was evaluated by Fisher's exact testing and multinomial logistic model to predict the volume status based on ultrasound scores and the classification accuracy. Results 61 patients in the ICU were evaluated. 21 (34.4% of total) patients diagnosed with hypovolemia, and their ultrasound volume score was −4 in 14 (66.7%) patients, −3 in 5 (23.8%) patients, and 0 in 2 (9.5%) patients (p < 0.001). 18 (29.5% of total) patients diagnosed with euvolemia, and their ultrasound volume score was 0 in 11 (61.1%) patients, +1 in 4 (22.2%) patients, and −1 in 1 (5.6%) patient (p < 0.001). 18 (29.5% of total) patients diagnosed with euvolemia, and their ultrasound volume score was 0 in 11 (61.1%) patients, +1 in 4 (22.2%) patients, and −1 in 1 (5.6%) patient (p < 0.001). 18 (29.5% of total) patients diagnosed with euvolemia, and their ultrasound volume score was 0 in 11 (61.1%) patients, +1 in 4 (22.2%) patients, and −1 in 1 (5.6%) patient (p < 0.001). 18 (29.5% of total) patients diagnosed with euvolemia, and their ultrasound volume score was 0 in 11 (61.1%) patients, +1 in 4 (22.2%) patients, and −1 in 1 (5.6%) patient ( Conclusion Using the SAFE scoring system to identify the IVV status in critically ill patients significantly correlates with the standard measures. A SAFE score of −4 to −2 more likely represents hypovolemia, −1 to +1 more likely represents euvolemia, and +2 to +4 more likely to be hypervolemia.
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50
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Tierney DM, Huelster JS, Overgaard JD, Plunkett MB, Boland LL, St Hill CA, Agboto VK, Smith CS, Mikel BF, Weise BE, Madigan KE, Doshi AP, Melamed RR. Comparative Performance of Pulmonary Ultrasound, Chest Radiograph, and CT Among Patients With Acute Respiratory Failure. Crit Care Med 2020; 48:151-157. [PMID: 31939782 DOI: 10.1097/ccm.0000000000004124] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
OBJECTIVES The study goal was to concurrently evaluate agreement of a 9-point pulmonary ultrasound protocol and portable chest radiograph with chest CT for localization of pathology to the correct lung and also to specific anatomic lobes among a diverse group of intubated patients with acute respiratory failure. DESIGN Prospective cohort study. SETTING Medical, surgical, and neurologic ICUs at a 670-bed urban teaching hospital. PATIENTS Intubated adults with acute respiratory failure having chest CT and portable chest radiograph performed within 24 hours of intubation. INTERVENTIONS A 9-point pulmonary ultrasound examination performed at the time of intubation. MEASUREMENTS AND MAIN RESULTS Sixty-seven patients had pulmonary ultrasound, portable chest radiograph, and chest CT performed within 24 hours of intubation. Overall agreement of pulmonary ultrasound and portable chest radiograph findings with correlating lobe ("lobe-specific" agreement) on CT was 87% versus 62% (p < 0.001), respectively. Relaxing the agreement definition to a matching CT finding being present anywhere within the correct lung ("lung-specific" agreement), not necessarily the specific mapped lobe, showed improved agreement for both pulmonary ultrasound and portable chest radiograph respectively (right lung: 92.5% vs 65.7%; p < 0.001 and left lung: 83.6% vs 71.6%; p = 0.097). The highest lobe-specific agreement was for the finding of atelectasis/consolidation for both pulmonary ultrasound and portable chest radiograph (96% and 73%, respectively). The lowest lobe-specific agreement for pulmonary ultrasound was normal lung (79%) and interstitial process for portable chest radiograph (29%). Lobe-specific agreement differed most between pulmonary ultrasound and portable chest radiograph for interstitial findings (86% vs 29%, respectively). Pulmonary ultrasound had the lowest agreement with CT for findings in the left lower lobe (82.1%). Pleural effusion agreement also differed between pulmonary ultrasound and portable chest radiograph (right: 99% vs 87%; p = 0.009 and left: 99% vs 85%; p = 0.004). CONCLUSIONS A clinical, 9-point pulmonary ultrasound protocol strongly agreed with specific CT findings when analyzed by both lung- and lobe-specific location among a diverse population of mechanically ventilated patients with acute respiratory failure; in this regard, pulmonary ultrasound significantly outperformed portable chest radiograph.
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Affiliation(s)
- David M Tierney
- Department of Graduate Medical Education, Abbott Northwestern Hospital, Minneapolis, MN
| | - Joshua S Huelster
- Department of Critical Care, Abbott Northwestern Hospital, Minneapolis, MN
| | - Josh D Overgaard
- Department of Graduate Medical Education, Abbott Northwestern Hospital, Minneapolis, MN
| | | | - Lori L Boland
- Department of Care Delivery Research, Allina Health, Minneapolis, MN
| | | | - Vincent K Agboto
- Department of Care Delivery Research, Allina Health, Minneapolis, MN
| | - Claire S Smith
- Department of Care Delivery Research, Allina Health, Minneapolis, MN
| | - Bryce F Mikel
- Department of Graduate Medical Education, Abbott Northwestern Hospital, Minneapolis, MN
| | - Brynn E Weise
- Department of Graduate Medical Education, Abbott Northwestern Hospital, Minneapolis, MN
| | | | - Ameet P Doshi
- Department of Graduate Medical Education, Abbott Northwestern Hospital, Minneapolis, MN
| | - Roman R Melamed
- Department of Critical Care, Abbott Northwestern Hospital, Minneapolis, MN
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