1
|
Zaki HA, Albaroudi B, Shaban EE, Elgassim M, Almarri ND, Basharat K, Shaban A. Deep venous thrombosis (DVT) diagnostics: gleaning insights from point-of-care ultrasound (PoCUS) techniques in emergencies: a systematic review and meta-analysis. Ultrasound J 2024; 16:37. [PMID: 39080184 PMCID: PMC11289207 DOI: 10.1186/s13089-024-00378-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 05/06/2024] [Indexed: 08/02/2024] Open
Abstract
BACKGROUND The assessment of deep venous thrombosis (DVT) is clinically difficult diagnosis. The "gold standard test" for DVT diagnosis is venography; however, various point-of-care ultrasound (POCUS) protocols have been suggested for DVT evaluation in the emergency department. AIMS This review evaluated the role of different POCUS protocols in diagnosing DVT in the emergency department. METHODS A systematic review and meta-analysis was conducted based of PRISMA guideline and registered on PROSEPRO (CRD42023398871). An electronic database search in Embase, PubMed, ScienceDirect, and Google scholar and a manual search were performed to identify eligible studies till February 2023. Quality Assessment of Diagnostic Accuracy Studies tool (QUADAS-2) was used to assess the risk of bias in included studies. Quantitative analysis was carried out using STATA 16 and Review Manager software (RevMan 5.4.1). Sensitivity, specificity of POCUS protocols for DVT diagnosis compared to reference standard test was calculated. RESULTS Heterogeneity was identified between 26 included studies for review. The pooled sensitivity, specificity, PPV, and NPV for the 2-point POCUS protocol were 92.32% (95% CI: 87.58-97.06), 96.86% (95% CI: 95.09-98.64), 88.41% (95% CI: 82.24-94.58) and 97.25% (95% CI: 95.51-98.99), respectively. Similarly, the pooled sensitivity, specificity, PPV, and NPV for 3-point POCUS were 89.15% (95% CI: 83.24-95.07), 92.71% (95% CI: 89.59-95.83), 81.27% (95% CI: 73.79-88.75), and 95.47% (95% CI: 92.93-98). The data pooled for complete compression ultrasound, and whole-leg duplex ultrasound also resulted in a sensitivity and specificity of 100% (95% CI: 98.21-100) and 97.05% (95% CI: 92.25-100), respectively. On the other hand, the time from triage to DVT diagnosis was significantly shorter for emergency physician-performed POCUS than diagnostic tests performed by radiologists. CONCLUSION The diagnostic performance of POCUS protocols performed by emergency physicians was excellent. Combined with the significant reduction in time to diagnosis. POCUS can be used as the first-line imaging tool for DVT diagnosis in the emergency department. We also recommended that attending emergency physicians with POCUS training are present during DVT diagnosis to improve diagnostic performance even though high diagnostic performance is observed even with the minimum training.
Collapse
Affiliation(s)
- Hany A Zaki
- Department of Emergency Medicine, Hamad Medical Corporation, Doha, Qatar
| | - Bilal Albaroudi
- Department of Emergency Medicine, Hamad Medical Corporation, Doha, Qatar.
| | - Eman E Shaban
- Department of Cardiology, Al Jufairi Diagnosis and Treatment, MOH, Doha, Qatar
| | - Mohamed Elgassim
- Department of Emergency Medicine, Hamad Medical Corporation, Doha, Qatar
| | - Nood Dhafi Almarri
- Department of Emergency Medicine, Hamad Medical Corporation, Doha, Qatar
| | - Kaleem Basharat
- Department of Emergency Medicine, Hamad Medical Corporation, Doha, Qatar
| | - Ahmed Shaban
- Department of Internal Medicine, Mansoura General Hospital, Mansoura, Egypt
| |
Collapse
|
2
|
Hercz D, Mechanic OJ, Varella M, Fajardo F, Levine RL. Ultrasound Performed by Emergency Physicians for Deep Vein Thrombosis: A Systematic Review. West J Emerg Med 2024; 25:282-290. [PMID: 38596931 PMCID: PMC11000565 DOI: 10.5811/westjem.18125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 10/24/2023] [Accepted: 11/22/2023] [Indexed: 04/11/2024] Open
Abstract
Introduction Point-of-care ultrasound (POCUS) performed by emergency physicians (EP) has emerged as an effective alternative to radiology department ultrasounds for the diagnosis of lower extremity deep vein thrombosis (DVT). Systematic reviews suggested good sensitivity and specificity overall for EP-performed POCUS for DVT diagnosis, yet high levels of heterogeneity were reported. Methods In this systematic review and meta-analysis, we aimed to provide the most up-to-date estimates of the accuracy of EP-performed POCUS for diagnosis of DVT and to explore potential correlations with test performance. We performed systematic searches in MEDLINE and Embase for original, primary data articles from January 2012-June 2021 comparing the efficacy of POCUS performed by EPs to the local standard. Quality Assessment of Diagnostic Accuracy Studies-2 for individual articles are reported. We obtained summary measures of sensitivity, specificity, and their corresponding 95% confidence intervals (CI) using bivariate mixed-effects regression models. We performed meta-regression, subgroup, and sensitivity analyses as planned in the protocol CRD42021268799 submitted to PROSPERO. Results Fifteen publications fit the inclusion criteria, totaling 2,511 examinations. Pooled sensitivity and specificity were 90% (95% CI 82%-95%) and 95% (CI 91%-97%), respectively. Subgroup analyses by EP experience found significantly better accuracy for exams performed by EP specialists (93%, CI 88%-97%) vs trainees (77%, CI 60%-94%). Specificity for EP specialists (97%, CI 94%-99%) was higher than for trainees (87%, CI 76%-99%, P = 0.01). Three-point compression ultrasound (CUS) was more sensitive than two-point CUS but was only statistically significant when limited to EP specialists (92% vs 88%, P = 0.07, and 95% vs 88%, P = 0.02, respectively). Conclusion Point-of-care ultrasound performed by emergency physicians is sensitive and specific for the diagnosis of suspected DVT when performed by trained attending EPs. Three-point compression ultrasound examination may be more sensitive than two-point CUS.
Collapse
Affiliation(s)
- Daniel Hercz
- Jackson Memorial Hospital, Department of Emergency Medicine, Miami, Florida
- University of Miami, Department of Surgery, Miami, Florida
| | - Oren J Mechanic
- Mount Sinai Medical Center, Department of Emergency Medicine, Miami Beach, Florida
- Florida International University, Herbert Wertheim College of Medicine, Department of Medical Education, Miami, Florida
| | - Marcia Varella
- Florida International University, Herbert Wertheim College of Medicine, Department of Medical Education, Miami, Florida
| | - Francisco Fajardo
- Florida International University, Herbert Wertheim College of Medicine, Department of Medical Education, Miami, Florida
| | - Robert L Levine
- Florida International University, Herbert Wertheim College of Medicine, Department of Emergency Medicine and Critical Care, Miami, Florida
| |
Collapse
|
3
|
Popat A, Harikrishnan S, Seby N, Sen U, Patel SK, Mittal L, Patel M, Vundi C, Patel Y, Babita, Kumar A, Nakrani AA, Patel M, Yadav S. Utilization of Point-of-Care Ultrasound as an Imaging Modality in the Emergency Department: A Systematic Review and Meta-Analysis. Cureus 2024; 16:e52371. [PMID: 38694948 PMCID: PMC11062642 DOI: 10.7759/cureus.52371] [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] [Accepted: 01/16/2024] [Indexed: 05/04/2024] Open
Abstract
Point-of-care ultrasound (POCUS) is an imaging modality that has become a fundamental part of clinical care provided in the emergency department (ED). The applications of this tool in the ED have ranged from resuscitation, diagnosis, and therapeutic to procedure guidance. This review aims to summarize the evidence on the use of POCUS for diagnosis and procedure guidance. To achieve this, CrossRef, PubMed, Cochrane Library, Web of Science, and Google Scholar databases were extensively searched for studies published between January 2000 and November 2023. Additionally, the risk of bias assessment was performed using the Quality Assessment of Diagnostic Accuracy Studies 2 (for studies on the diagnostic role of POCUS) and Cochrane Risk of Bias tool (for studies on the use of POCUS for procedure guidance). Furthermore, diagnostic accuracy outcomes were pooled using STATA 16 software (StatCorp., College Station, TX, USA), while outcomes related to procedure guidance were pooled using the Review Manager software. The study included 81 articles (74 evaluating the diagnostic application of POCUS and seven evaluating the use of POCUS in guiding clinical procedures). In our findings sensitivities and specificities for various conditions were as follows: appendicitis, 65% and 89%; hydronephrosis, 82% and 74%; small bowel obstruction, 93% and 82%; cholecystitis, 75% and 96%; retinal detachment, 94% and 91%; abscess, 95% and 85%; foreign bodies, 67% and 97%; clavicle fractures, 93% and 94%; distal forearm fractures, 97% and 94%; metacarpal fractures, 94% and 92%; skull fractures, 91% and 97%; and pleural effusion, 91% and 97%. A subgroup analysis of data from 11 studies also showed that the two-point POCUS has a sensitivity and specificity of 89% and 96%, while the three-point POCUS is 87% sensitive and 92% specific in the diagnosis of deep vein thrombosis. In addition, the analyses showed that ultrasound guidance significantly increases the overall success rate of peripheral venous access (p = 0.02) and significantly reduces the number of skin punctures (p = 0.01) compared to conventional methods. In conclusion, POCUS can be used in the ED to diagnose a wide range of clinical conditions accurately. Furthermore, it can be used to guide peripheral venous access and central venous catheter insertion.
Collapse
Affiliation(s)
- Apurva Popat
- Internal Medicine, Marshfield Clinic Health System, Marshfield, USA
| | | | - Niran Seby
- Internal Medicine, Tbilisi State Medical University, Tbilisi, GEO
| | - Udvas Sen
- Internal Medicine, Agartala Government Medical College, Agartala, IND
| | - Sagar K Patel
- Internal Medicine, Gujarat Adani Institute of Medical Sciences, Bhuj, IND
| | - Lakshay Mittal
- Internal Medicine, Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, IND
| | - Mitkumar Patel
- Internal Medicine, Mahatma Gandhi Mission (MGM) Medical College, Navi Mumbai, IND
| | - Charitha Vundi
- Internal Medicine, Konaseema Institute of Medical Sciences and Research Foundation, Amalapuram, IND
| | - Yashasvi Patel
- Internal Medicine, Geetanjali Medical College and Hospital, Udaipur, IND
| | - Babita
- Internal Medicine, Uzhhorod National University, Uzhhorod, UKR
| | - Ashish Kumar
- General Practice, Gujarat Medical Education and Research Society (GMERS) Medical College and Hospital, Ahmedabad, IND
| | - Akash A Nakrani
- Internal Medicine, Gujarat Adani Institute of Medical Sciences, Surat, IND
| | - Mahir Patel
- Medical School, Byramjee Jeejeebhoy Medical College, Ahmedabad, IND
| | - Sweta Yadav
- Internal Medicine, Gujarat Medical Education and Research Society (GMERS) Medical College and Hospital, Ahmedabad, IND
| |
Collapse
|
4
|
Jarman RD, McDermott C, Colclough A, Bøtker M, Knudsen L, Harris T, Albaroudi B, Albaroudi O, Haddad M, Darke R, Berry E, Breslin T, Fitzpatrick G, Flanagan L, Olusanya O, Craver D, Omar A, Simpson T, Cherian N, Dore M, Prosen G, Kay S, Villén-Villegas T, Gargani L, Carley S, Woo M, Dupriez F, Hussain A, Via G, Connolly JA, Peck M, Melniker L, Walden A, Attard Biancardi MA, Żmijewska-Kaczor O, Lalande E, Geukens P, McLaughlin R, Olszynski P, Hoffmann B, Chin E, Muhr C, Kim DJ, Mercieca A, Shukla D, Hayward S, Smith M, Gaspari R, Smallwood N, Pes P, Tavazzi G, Corradi F, Lambert M, Morris C, Trauer M, Baker K, Bystrzycki A, Goudie A, Liu R, Rudd L, Dietrich CF, Jenssen C, Sidhu PS. EFSUMB Clinical Practice Guidelines for Point-of-Care Ultrasound: Part One (Common Heart and Pulmonary Applications) LONG VERSION. ULTRASCHALL IN DER MEDIZIN (STUTTGART, GERMANY : 1980) 2023; 44:e1-e24. [PMID: 36228631 DOI: 10.1055/a-1882-5615] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
AIMS To evaluate the evidence and produce a summary and recommendations for the most common heart and lung applications of point-of-care ultrasound (PoCUS). METHODS We reviewed 10 clinical domains/questions related to common heart and lung applications of PoCUS. Following review of the evidence, a summary and recommendation were produced, including assignment of levels of evidence (LoE) and grading of the recommendation, assessment, development, and evaluation (GRADE). 38 international experts, the expert review group (ERG), were invited to review the evidence presented for each question. A level of agreement of over 75 % was required to progress to the next section. The ERG then reviewed and indicated their level of agreement regarding the summary and recommendation for each question (using a 5-point Likert scale), which was approved if a level of agreement of greater than 75 % was reached. A level of agreement was defined as a summary of "strongly agree" and "agree" on the Likert scale responses. FINDINGS AND RECOMMENDATIONS One question achieved a strong consensus for an assigned LoE of 3 and a weak GRADE recommendation (question 1). The remaining 9 questions achieved broad agreement with one assigned an LoE of 4 and weak GRADE recommendation (question 2), three achieving an LoE of 3 with a weak GRADE recommendation (questions 3-5), three achieved an LoE of 3 with a strong GRADE recommendation (questions 6-8), and the remaining two were assigned an LoE of 2 with a strong GRADE recommendation (questions 9 and 10). CONCLUSION These consensus-derived recommendations should aid clinical practice and highlight areas of further research for PoCUS in acute settings.
Collapse
Affiliation(s)
- Robert David Jarman
- Emergency Department, Royal Victoria Infirmary, Newcastle upon Tyne, United Kingdom of Great Britain and Northern Ireland
- School of Health and Life Sciences, Teesside University, Middlesbrough, United Kingdom of Great Britain and Northern Ireland
| | - Cian McDermott
- Emergency Medicine, Mater Misericordiae University Hospital, Dublin, Ireland
| | - Anna Colclough
- Emergency Medicine, University Hospital Lewisham, London, United Kingdom of Great Britain and Northern Ireland
| | - Morten Bøtker
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Prehospital Emergency Medical Services, Central Denmark Region, Viborg, Denmark
| | - Lars Knudsen
- Department of Anaesthesia, Aarhus University Hospital, Aarhus, Denmark
| | - Tim Harris
- Emergency Medicine, Queen Mary University of London, United Kingdom of Great Britain and Northern Ireland
- Emergency Medicine, Hamad Medical Corporation, Doha, Qatar
| | | | - Omar Albaroudi
- Emergency Medicine, Hamad Medical Corporation, Doha, Qatar
| | - Mahmoud Haddad
- Emergency Medicine, Hamad Medical Corporation, Doha, Qatar
| | - Robert Darke
- Emergency Medicine and Intensive Care Medicine, Health Education England North East, Newcastle upon Tyne, United Kingdom of Great Britain and Northern Ireland
| | - Edward Berry
- Emergency Medicine, Torbay Hospital, Torquay, United Kingdom of Great Britain and Northern Ireland
| | - Tomas Breslin
- Emergency Medicine, Mater Misericordiae University Hospital, Dublin, Ireland
- School of Medicine, University College Dublin, Ireland
| | | | - Leah Flanagan
- Emergency Medicine, Mater Misericordiae University Hospital, Dublin, Ireland
| | - Olusegun Olusanya
- Intensive Care Medicine, University College Hospital, London, United Kingdom of Great Britain and Northern Ireland
| | - Dominic Craver
- Emergency Medicine, The Royal London Hospital, London, United Kingdom of Great Britain and Northern Ireland
| | - Adhnan Omar
- Respiratory Medicine, University Hospital Lewisham, London, United Kingdom of Great Britain and Northern Ireland
| | - Thomas Simpson
- Respiratory Medicine, Lewisham and Greenwich NHS Trust, London, United Kingdom of Great Britain and Northern Ireland
| | - Nishant Cherian
- Emergency Medicine, The Alfred Emergency & Trauma Centre, Melbourne, Australia
- School of Health and Life Sciences, Teesside University, Middlesbrough, United Kingdom of Great Britain and Northern Ireland
| | - Martin Dore
- Emergency Medicine, Royal Devon and Exeter NHS Foundation Trust, Exeter, United Kingdom of Great Britain and Northern Ireland
| | - Gregor Prosen
- Center for Emergency Medicine, University Medical Centre Maribor, Slovenia
| | - Sharon Kay
- Cardiac Physiology and Echocardiography, The University of Sydney, Australia
| | | | - Luna Gargani
- Cardiology, Institute of Clinical Physiology National Research Council, Pisa, Italy
| | - Simon Carley
- Emergency Medicine, Manchester University NHS Foundation Trust, Manchester, United Kingdom of Great Britain and Northern Ireland
- Emergency Medicine, Manchester Metropolitan University, Manchester, United Kingdom of Great Britain and Northern Ireland
| | - Michael Woo
- Emergency Medicine, University of Ottawa, Canada
- Emergency Medicine, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Florence Dupriez
- Emergency Medicine, Cliniques universitaires Saint-Luc, Bruxelles, Belgium
| | - Arif Hussain
- Cardiac Critical Care, King Abdulaziz Medical City, Riyadh, Saudi Arabia
| | - Gabriele Via
- Anesthesiology, Intensive Care and Pain Medicine, Istituto Cardiocentro Ticino Ente Ospedaliero Cantonale, Lugano, Switzerland, Pavia, Italy
| | - James Anthony Connolly
- Emergency Medicine, Royal Victoria Infirmary, Newcastle-upon-Tyne, United Kingdom of Great Britain and Northern Ireland
| | - Marcus Peck
- Anaesthesia and Intensive Care, Frimley Park Hospital NHS Trust, Frimley, United Kingdom of Great Britain and Northern Ireland
| | - Larry Melniker
- Emergency Medicine, New York-Presbyterian Brooklyn Methodist Hospital, Brooklyn, United States
| | - Andrew Walden
- Acute and Intensive Care Medicine, Royal Berkshire Hospital, Reading, United Kingdom of Great Britain and Northern Ireland
- Acute Medicine and Intensive Care Medicine, University of Oxford, United Kingdom of Great Britain and Northern Ireland
| | | | - Olga Żmijewska-Kaczor
- Emergency Medicine, Royal Cornwall Hospital, Truro, United Kingdom of Great Britain and Northern Ireland
| | - Elizabeth Lalande
- Emergency Medicine, Centre Hospitalier de l'Université Laval, Sainte-Foy, Canada
| | - Paul Geukens
- Intensive Care Medicine, Hopital de Jolimont, Haine-Saint-Paul, Belgium
| | - Russell McLaughlin
- Emergency Medicine, Royal Victoria Hospital, Belfast, United Kingdom of Great Britain and Northern Ireland
- Medical Director, Northern Ireland Ambulance Service, Belfast, United Kingdom of Great Britain and Northern Ireland
| | - Paul Olszynski
- Emergency Medicine, University of Saskatchewan, Saskatoon, Canada
| | - Beatrice Hoffmann
- Emergency Department, Harvard Medical School Department of Emergency Medicine Beth Israel Deaconess Medical Center, Boston, United States
| | - Eric Chin
- Emergency Medicine, Brooke Army Medical Center, Fort Sam Houston, United States
| | - Christopher Muhr
- Emergency Medicine and Internal Medicine, Capio Sankt Gorans Sjukhus, Stockholm, Sweden
| | - Daniel J Kim
- Emergency Medicine, The University of British Columbia, Vancouver, Canada
- Emergency Medicine, Vancouver General Hospital, Vancouver, Canada
| | | | | | - Simon Hayward
- Physiotherapy, Blackpool Teaching Hospitals NHS Foundation Trust, Blackpool, United Kingdom of Great Britain and Northern Ireland
| | - Michael Smith
- School of Healthcare Sciences, Cardiff University College of Biomedical and Life Sciences, Cardiff, United Kingdom of Great Britain and Northern Ireland
| | - Romolo Gaspari
- Emergency Medicine, UMass Memorial Medical Center, Worcester, United States
- Emergency Medicine, UMass Medical School, Worcester, United States
| | - Nick Smallwood
- Acute Medicine, East Surrey Hospital, Redhill, United Kingdom of Great Britain and Northern Ireland
| | - Philippe Pes
- Emergency Medicine, University Hospital Centre Nantes, France
| | - Guido Tavazzi
- Anesthesia and Intensive Care Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
- Dipartimento di Scienze Clinico-Chirurgiche, Diagnostiche e Pediatriche, Università degli Studi di Pavia Facoltà di Medicina e Chirurgia, Pavia, Italy
| | - Francesco Corradi
- Surgical, Medical and Molecular Pathology and Critical Care Medicine, University of Pisa, Italy
| | - Michael Lambert
- Emergency Medicine, Advocate Christ Medical Center, Oak Lawn, United States
| | - Craig Morris
- Intensive Care, Royal Derby Hospital, Derby, United Kingdom of Great Britain and Northern Ireland
| | - Michael Trauer
- Emergency Medicine, St Thomas' Hospital, London, United Kingdom of Great Britain and Northern Ireland
| | - Kylie Baker
- Emergency Medicine, Ipswich Hospital, Ipswich, Australia
- Faculty of Medicine, The University of Queensland, Saint Lucia, Australia
| | - Adam Bystrzycki
- Emergency Medicine, The Alfred Emergency & Trauma Centre, Melbourne, Australia
- Department of Epidemiology & Preventive Medicine, Monash University, Clayton, Australia
| | - Adrian Goudie
- Emergency Medicine, Fiona Stanley Hospital, Murdoch, Australia
| | - Rachel Liu
- Emergency Medicine, Yale School of Medicine, New Haven, United States
| | - Lynne Rudd
- General Secretary, European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB), London, United Kingdom of Great Britain and Northern Ireland
| | - Christoph F Dietrich
- Department Allgemeine Innere Medizin, Kliniken Hirslanden Beau Site, Salem und Permanence, Bern, Switzerland
| | - Christian Jenssen
- Klinik für Innere Medizin, Krankenhaus Märkisch Oderland Strausberg/ Wriezen, Germany
| | - Paul S Sidhu
- Radiology, King's College London, United Kingdom of Great Britain and Northern Ireland
| |
Collapse
|
5
|
Rudnin S, Kaminsky J, Ghosh R, Webb R, Fu W, Tama M, Hayim M, Hahn B, Greenstein J. Distribution of Lower Extremity Deep Vein Thrombosis and Implications for Limited Compression Ultrasound Examinations. J Emerg Med 2022; 63:348-354. [PMID: 36115745 DOI: 10.1016/j.jemermed.2022.04.009] [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: 11/19/2021] [Revised: 02/18/2022] [Accepted: 04/23/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Limited compression bedside ultrasonography (LCUS) including two-point, three-point, and extended compression examinations have become increasingly popular among emergency physicians to assess for lower extremity deep venous thrombosis (DVT). OBJECTIVE Our objective in this study was to determine the prevalence and distribution of lower extremity DVT in sites identified by complete duplex ultrasonography (CDUS) that may potentially be missed using limited compression ultrasonography techniques. METHODS This was a retrospective, multicenter study conducted at 12 hospitals within the Northwell Health system over a span of 4 years. Study participants (emergency department patients) underwent CDUS to assess for possible DVT. Images were reviewed and interpreted by radiologists and vascular surgeons at each of the participating institutions. RESULTS A total of 42,487 CDUS examinations were performed, of which 3383 were positive for DVT. DVTs were deemed to be acute in 2664 (79%) and chronic in the remaining 21% on the basis of comparison with previous studies and appearance of the vein. Of the acute DVTs, 136 (5.1%) were confined to the common femoral vein, 116 (4.4%) to the femoral vein, 8 (0.3%) to deep femoral vein, 213 (8.0%) to popliteal vein, and 934 (35.1) to calf veins alone. CONCLUSIONS In our study, a significant number of DVTs were identified in sites that may have been potentially missed on LCUS examinations, thereby supporting the use of complete duplex ultrasonography when available.
Collapse
Affiliation(s)
- Simone Rudnin
- Department of Emergency Medicine, Northwell Health, Staten Island University Hospital, Staten Island, New York
| | - Jennifer Kaminsky
- Department of Emergency Medicine, Northwell Health, Staten Island University Hospital, Staten Island, New York
| | - Radhika Ghosh
- Department of Pediatrics, Northwell Health, Emory University Hospital, Atlanta, Georgia
| | - Ryan Webb
- Department of Radiology, Northwell Health, Staten Island University Hospital, Staten Island, New York
| | - Wayne Fu
- Department of Emergency Medicine, Northwell Health, Staten Island University Hospital, Staten Island, New York
| | - Maria Tama
- Department of Emergency Medicine, Northwell Health, Staten Island University Hospital, Staten Island, New York
| | - Morris Hayim
- Department of Radiology, Northwell Health, Staten Island University Hospital, Staten Island, New York
| | - Barry Hahn
- Department of Emergency Medicine, Northwell Health, Staten Island University Hospital, Staten Island, New York
| | - Josh Greenstein
- Department of Emergency Medicine, Northwell Health, Staten Island University Hospital, Staten Island, New York
| |
Collapse
|
6
|
Kainz B, Heinrich MP, Makropoulos A, Oppenheimer J, Mandegaran R, Sankar S, Deane C, Mischkewitz S, Al-Noor F, Rawdin AC, Ruttloff A, Stevenson MD, Klein-Weigel P, Curry N. Non-invasive diagnosis of deep vein thrombosis from ultrasound imaging with machine learning. NPJ Digit Med 2021; 4:137. [PMID: 34526639 PMCID: PMC8443708 DOI: 10.1038/s41746-021-00503-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 08/06/2021] [Indexed: 12/19/2022] Open
Abstract
Deep vein thrombosis (DVT) is a blood clot most commonly found in the leg, which can lead to fatal pulmonary embolism (PE). Compression ultrasound of the legs is the diagnostic gold standard, leading to a definitive diagnosis. However, many patients with possible symptoms are not found to have a DVT, resulting in long referral waiting times for patients and a large clinical burden for specialists. Thus, diagnosis at the point of care by non-specialists is desired. We collect images in a pre-clinical study and investigate a deep learning approach for the automatic interpretation of compression ultrasound images. Our method provides guidance for free-hand ultrasound and aids non-specialists in detecting DVT. We train a deep learning algorithm on ultrasound videos from 255 volunteers and evaluate on a sample size of 53 prospectively enrolled patients from an NHS DVT diagnostic clinic and 30 prospectively enrolled patients from a German DVT clinic. Algorithmic DVT diagnosis performance results in a sensitivity within a 95% CI range of (0.82, 0.94), specificity of (0.70, 0.82), a positive predictive value of (0.65, 0.89), and a negative predictive value of (0.99, 1.00) when compared to the clinical gold standard. To assess the potential benefits of this technology in healthcare we evaluate the entire clinical DVT decision algorithm and provide cost analysis when integrating our approach into diagnostic pathways for DVT. Our approach is estimated to generate a positive net monetary benefit at costs up to £72 to £175 per software-supported examination, assuming a willingness to pay of £20,000/QALY.
Collapse
Affiliation(s)
- Bernhard Kainz
- ThinkSono Ltd, London, UK.
- Imperial College London, London, UK.
- FAU Erlangen-Nürnberg, Erlangen, Germany.
- King's College London, London, UK.
| | | | | | | | | | | | | | | | | | - Andrew C Rawdin
- The University of Sheffield, School of Health and Related Research, Sheffield, UK
| | - Andreas Ruttloff
- Clinic of Angiology - Interdisciplinary Center of Vascular Medicine, Potsdam, Germany
| | - Matthew D Stevenson
- The University of Sheffield, School of Health and Related Research, Sheffield, UK
| | - Peter Klein-Weigel
- Clinic of Angiology - Interdisciplinary Center of Vascular Medicine, Potsdam, Germany
| | - Nicola Curry
- Oxford Haemophilia and Thrombosis Centre, Headington, UK
| |
Collapse
|
7
|
Nelson M, Shi D, Gordon M, Chavda Y, Grimaldi C, Bajaj T. Where There's Smoke, There's Fire: A Case Report of Turbulent Blood Flow in Lower Extremity Point-of-care Ultrasound in COVID-19. Clin Pract Cases Emerg Med 2021; 5:30-34. [PMID: 33560947 PMCID: PMC7872592 DOI: 10.5811/cpcem.2020.10.48809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 10/10/2020] [Indexed: 12/20/2022] Open
Abstract
INTRODUCTION Coronavirus disease 2019 (COVID-19) may predispose patients to increased risk of venous thromboembolism (VTE) due to various pathophysiological mechanisms, including but not limited to endothelial injury, inflammation, cytokine-mediated microvascular damage, and reactive thrombocytosis. A high risk of vessel thrombosis correlates with disease severity, making early identification and treatment of prime consideration.Although identification of a deep venous thrombosis (DVT) or pulmonary embolism warrants immediate treatment with anticoagulation, trying to predict which COVID-19 patients may be at increased risk for developing these pathologies is challenging. CASE REPORTS We present two cases of patients with COVID-19 who had ultrasonographic findings of turbulent blood flow within the deep venous system, without clear evidence of acute proximal DVT, who were subsequently found to have significant VTE. CONCLUSION Point-of-care lower extremity ultrasound has become one of the core applications used by emergency physicians. Typically we perform compression ultrasound for DVT evaluation. This novel finding of turbulent blood flow, or "smoke," within the deep venous system, may serve as a marker of increased risk of clot development and could be an indication to consider early anticoagulation.
Collapse
Affiliation(s)
- Mathew Nelson
- North Shore University Hospital, Department of Emergency Medicine, Manhasset, New York
| | - Dorothy Shi
- North Shore University Hospital, Department of Emergency Medicine, Manhasset, New York
| | - Miles Gordon
- North Shore University Hospital, Department of Emergency Medicine, Manhasset, New York
| | - Yash Chavda
- North Shore University Hospital, Department of Emergency Medicine, Manhasset, New York
| | - Christina Grimaldi
- North Shore University Hospital, Department of Emergency Medicine, Manhasset, New York
| | - Tanya Bajaj
- North Shore University Hospital, Department of Emergency Medicine, Manhasset, New York
| |
Collapse
|
8
|
Beller E, Becher M, Meinel FG, Kröger JC, Rajagopal R, Höft R, Weber MA, Heller T. Prevalence and predictors of alternative diagnoses on whole-leg ultrasound negative for acute deep venous thrombosis. BMC Med Imaging 2020; 20:127. [PMID: 33267839 PMCID: PMC7709303 DOI: 10.1186/s12880-020-00527-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 11/17/2020] [Indexed: 12/20/2022] Open
Abstract
Background To investigate the prevalence, spectrum, and predictors of alternative diagnoses explaining leg symptoms in patients negative for suspected acute deep venous thrombosis (DVT), which can be detected with whole-leg ultrasound. Methods We retrospectively analyzed a cohort of 789 patients (median age 70 years, 50.6% women) evaluated with a whole-leg ultrasound examination for suspected acute DVT within one year. All findings in the radiology report were analyzed and electronic chart review was performed to collect clinical information. Results Ultrasound was negative for acute DVT in 531 patients (67.3%). Among these, alternative diagnoses explaining leg symptoms were seen in 349 patients (65.7%). The most frequent alternative diagnoses were chronic venous insufficiency (147 patients, 27.7%), followed by lymphedema (48 patients, 9.0%) and chronic post-thrombotic changes (41 patients, 7.7%). Patients with alternative diagnoses were older (median 71 vs. 66 years, p = 0.0226), as well as more likely to present with leg swelling (39.5% vs. 23.1%, p = 0.0002), difference in leg circumference (25.5% vs. 14.8%, p = 0.0055) and redness (7.7% vs. 2.7%, p = 0.0213) than patients without alternative diagnosis. Independent predictors of finding alternative diagnoses on whole-leg ultrasound were older age (odds ratio 1.014 per year, p = 0.0119), leg swelling (OR 1.949, p = 0.0020) and history of previous DVT (OR 2.235, p = 0.0154). Conclusions Alternative diagnoses explaining leg symptoms can be detected on whole-leg ultrasound in two thirds of patients with no evidence of acute DVT. Our data supports performing a comprehensive ultrasound evaluation beyond the venous system, particularly, in older patients, who present with leg swelling and a past history of DVT.
Collapse
Affiliation(s)
- Ebba Beller
- Institute of Diagnostic and Interventional Radiology, Paediatric Radiology and Neuroradiology, University Medical Centre Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany
| | - Mattes Becher
- Institute of Diagnostic and Interventional Radiology, Paediatric Radiology and Neuroradiology, University Medical Centre Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany
| | - Felix G Meinel
- Institute of Diagnostic and Interventional Radiology, Paediatric Radiology and Neuroradiology, University Medical Centre Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany.
| | - Jens-Christian Kröger
- Institute of Diagnostic and Interventional Radiology, Paediatric Radiology and Neuroradiology, University Medical Centre Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany
| | | | - Raimund Höft
- Department of Emergency Medicine, University Medical Centre Rostock, Rostock, Germany
| | - Marc-André Weber
- Institute of Diagnostic and Interventional Radiology, Paediatric Radiology and Neuroradiology, University Medical Centre Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany
| | - Thomas Heller
- Institute of Diagnostic and Interventional Radiology, Paediatric Radiology and Neuroradiology, University Medical Centre Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany
| |
Collapse
|
9
|
Ray JW, Gende AM, Hall MM, Coe I, Situ-LaCasse E, Waterbrook A. Ultrasound in Trauma and Other Acute Conditions in Sports, Part II. Curr Sports Med Rep 2020; 19:546-551. [DOI: 10.1249/jsr.0000000000000788] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
10
|
Suzuki E, Sakai T, Hoshino C, Hirao M, Yamaguchi R, Nakahara R. Assessment of the Need for Early Initiation of Rehabilitation Treatments in Patients with Coronavirus Disease 2019. Prog Rehabil Med 2020; 5:20200018. [PMID: 32844131 PMCID: PMC7429557 DOI: 10.2490/prm.20200018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 07/28/2020] [Indexed: 01/08/2023] Open
Abstract
Objective The aim of this study was to describe the clinical characteristics of coronavirus disease (COVID-19) patients, including risk factors for deep vein thrombosis and pulmonary embolism, and to evaluate the need for rehabilitation to prevent pulmonary embolism. Methods A retrospective medical record review was conducted of patients admitted to the study hospital with COVID-19 between April 2 and April 23, 2020. The clinical characteristics and blood test results of patients with no history on admission of oral anticoagulant use were evaluated to assess the importance of inflammation and clotting function as risk factors for pulmonary embolism. Results A total of 51 patients with COVID-19 were admitted during the study period. Their median age was 54.0 years (range: 41-63 years) and 38 of 51 (74.5%) were men. The most common comorbidities in men were diabetes (9/38, 23.7%) and hypertension (13/38, 34.2%). On admission, white blood cell counts were normal in both sexes, whereas C-reactive protein and hemostatic marker levels, except for the activated partial thromboplastin time, were significantly higher in men. Moreover, C-reactive protein and hemostatic marker levels were significantly higher in patients that required invasive ventilation. Two patients were diagnosed with acute pulmonary embolism, neither of whom required invasive ventilation. Conclusions Hypercoagulability and hyperinflammation were observed in COVID-19 patients, especially in men with high oxygen demand. We recommend anticoagulant therapy and early rehabilitation intervention to prevent pulmonary embolism in COVID-19 patients.
Collapse
Affiliation(s)
- Emily Suzuki
- Department of Rehabilitation Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tomoko Sakai
- Department of Rehabilitation Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Chisato Hoshino
- Department of Rehabilitation Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Masanobu Hirao
- Department of Rehabilitation Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Reiko Yamaguchi
- Department of Rehabilitation Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Rui Nakahara
- Department of Rehabilitation Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| |
Collapse
|