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Bagherzadeh SP, Celestin BE, Santana EJ, Salerno M, Nadeau KC, Sweatt AJ, Zamanian RT, Haddad F. Novel Reference Equations for Pulmonary Artery Size and Pulsatility Using Echocardiography and Their Diagnostic Value in Pulmonary Hypertension. Chest 2024:S0012-3692(24)04615-4. [PMID: 39025204 DOI: 10.1016/j.chest.2024.06.3805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 06/17/2024] [Accepted: 06/19/2024] [Indexed: 07/20/2024] Open
Abstract
BACKGROUND According to the most recent pulmonary hypertension (PH) guidelines, a main pulmonary artery (MPA) diameter > 25 mm on transthoracic echocardiography supports the diagnosis of PH. However, the size of the pulmonary artery (PA) may vary according to body size, age, and cardiac phases. RESEARCH QUESTION (1) What are the reference limits for PA size on transthoracic echocardiography, considering differences in body size, sex, and age? (2) What is the diagnostic value of the PA size for classifying PH? (3) How does the selection of different reference groups (healthy volunteers vs patients referred for right heart catheterization [RHC]) influence the diagnostic OR (DOR)? STUDY DESIGN AND METHODS The study included a reference cohort of 248 healthy individuals as control patients, 693 patients with PH proven by RHC, and 156 non-PH patients proven by RHC. In the PH cohort, 300 had group 1 PH, 207 had group 2 PH, and 186 had group 3 PH. MPA and right PA diameters and areas were measured in the upper sternal short-axis and suprasternal notch views. Reference limits (5th-95th percentile) were based on absolute values and height-indexed measures. Quantile regression analysis was used to derive median and 95th quantile reference equations for the PA measures. DORs and probability diagnostic plots for PH were then determined using healthy control and non-PH cohorts. RESULTS The 95th percentile for indexed MPA diameter was 15 mm/m in diastole and 19 mm/m in systole in both sexes. Quantile regression analysis revealed a weak age effect (pseudo-R2 of 0.08-0.10 for MPA diameters). Among measures, the MPA size in diastole had the highest DOR (156.2; 95% CI, 68.3-357.5) for detection of group 1 PH. Similarly, the DORs were also high for groups 2 and 3 PH when compared with the control cohort but significantly lower compared with the non-PH cohort. INTERPRETATION This study presents novel reference limits for MPA based on height indexing and quantile regression.
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Affiliation(s)
- Shadi P Bagherzadeh
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA; Stanford Cardiovascular Institute, Stanford University, Stanford, CA.
| | - Bettia E Celestin
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA; Sean N. Parker Center of Allergy and Asthma Research, Stanford, CA
| | - Everton J Santana
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA
| | - Michael Salerno
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA; Stanford Cardiovascular Institute, Stanford University, Stanford, CA
| | - Kari C Nadeau
- Sean N. Parker Center of Allergy and Asthma Research, Stanford, CA; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Andrew J Sweatt
- Division of Pulmonary and Critical Care Medicine, Stanford University, Stanford, CA; Vera Moulton Wall Center for Pulmonary Vascular Disease, Stanford, CA
| | - Roham T Zamanian
- Division of Pulmonary and Critical Care Medicine, Stanford University, Stanford, CA; Vera Moulton Wall Center for Pulmonary Vascular Disease, Stanford, CA
| | - Francois Haddad
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA; Stanford Cardiovascular Institute, Stanford University, Stanford, CA.
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2
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Pay L, Çetin T, Keskin K, Dereli Ş, Tezen O, Yumurtaş AÇ, Kolak Z, Eren S, Şaylık F, Çınar T, Hayıroğlu Mİ. Prognostic value of pulmonary artery diameter/aorta diameter ratio in patients with acute pulmonary embolism. Herz 2024:10.1007/s00059-024-05251-4. [PMID: 38832941 DOI: 10.1007/s00059-024-05251-4] [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: 01/28/2024] [Accepted: 05/06/2024] [Indexed: 06/06/2024]
Abstract
BACKGROUND The ratio of pulmonary artery diameter (PAD) to ascending aortic diameter (AoD) has been reported to be a prognostic marker in several lung diseases; however, the usefulness of this tool in patients with acute pulmonary embolism (APE) is unknown. Here, we aimed to determine the long-term prognostic value of the PAD/AoD ratio in patients with APE. METHODS A total of 275 patients diagnosed with APE at our tertiary care center between November 2016 and February 2022 were included in the study. The patients were divided into two groups according to the presence of long-term mortality and their PAD/AoD ratios were compared. RESULTS Long-term mortality was observed in 48 patients during the median follow-up of 59 (39-73) months. The patients were divided into two groups for analysis: group 1, consisting of 227 patients without recorded mortality, and group 2, consisting of 48 patients with documented mortality. A multivariate Cox regression model indicated that the PAD/AoD ratio has the potential to predict long-term mortality (HR: 2.9116, 95% CI: 1.1544-7.3436, p = 0.023). Analysis of the receiver operating characteristic curve revealed that there was no discernible difference in discriminative ability between the simplified pulmonary embolism severity index (sPESI) and PAD/AoD ratio (area under the curve [AUC] = 0.679 vs. 0.684, respectively, p = 0.937). The long-term predictive ability of the PAD/AoD ratio was not inferior to the sPESI score. CONCLUSIONS The PAD/AoD ratio, which can be easily calculated from pulmonary computed tomography, may be a useful parameter for determining the prognosis of APE patients.
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Affiliation(s)
- Levent Pay
- Department of Cardiology, Ardahan State Hospital, 75000, Ardahan, Turkey.
| | - Tuğba Çetin
- Department of Cardiology, Dr Siyami Ersek Thoracic and Cardiovascular Surgery Training Hospital, Istanbul, Turkey
| | - Kıvanç Keskin
- Department of Cardiology, Dr Siyami Ersek Thoracic and Cardiovascular Surgery Training Hospital, Istanbul, Turkey
| | - Şeyda Dereli
- Department of Cardiology, Dr Siyami Ersek Thoracic and Cardiovascular Surgery Training Hospital, Istanbul, Turkey
| | - Ozan Tezen
- Department of Cardiology, Bayrampasa State Hospital, Istanbul, Turkey
| | | | - Zeynep Kolak
- Department of Cardiology, Dr Siyami Ersek Thoracic and Cardiovascular Surgery Training Hospital, Istanbul, Turkey
| | - Semih Eren
- Department of Cardiology, Dr Siyami Ersek Thoracic and Cardiovascular Surgery Training Hospital, Istanbul, Turkey
| | - Faysal Şaylık
- Department of Cardiology, Van Education and Research Hospital, Van, Turkey
| | - Tufan Çınar
- Department of Medicine, University of Maryland Medical Center Midtown Campus, Baltimore, MD, USA
| | - Mert İlker Hayıroğlu
- Department of Cardiology, Dr Siyami Ersek Thoracic and Cardiovascular Surgery Training Hospital, Istanbul, Turkey
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Gawlitza J, Endres S, Fries P, Graf M, Wilkens H, Stroeder J, Buecker A, Massmann A, Ziegelmayer S. Machine learning assisted feature identification and prediction of hemodynamic endpoints using computed tomography in patients with CTEPH. Int J Cardiovasc Imaging 2024; 40:569-577. [PMID: 38143250 PMCID: PMC10950991 DOI: 10.1007/s10554-023-03026-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 11/24/2023] [Indexed: 12/26/2023]
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is a rare but potentially curable cause of pulmonary hypertension (PH). Currently PH is diagnosed by right heart catheterisation. Computed tomography (CT) is used for ruling out other causes and operative planning. This study aims to evaluate importance of different quantitative/qualitative imaging features and develop a supervised machine learning (ML) model to predict hemodynamic risk groups. 127 Patients with diagnosed CTEPH who received preoperative right heart catheterization and thoracic CTA examinations (39 ECG-gated; 88 non-ECG gated) were included. 19 qualitative/quantitative imaging features and 3 hemodynamic parameters [mean pulmonary artery pressure, right atrial pressure (RAP), pulmonary artery oxygen saturation (PA SaO2)] were gathered. Diameter-based CT features were measured in axial and adjusted multiplane reconstructions (MPR). Univariate analysis was performed for qualitative and quantitative features. A random forest algorithm was trained on imaging features to predict hemodynamic risk groups. Feature importance was calculated for all models. Qualitative and quantitative parameters showed no significant differences between ECG and non-ECG gated CTs. Depending on reconstruction plane, five quantitative features were significantly different, but mean absolute difference between parameters (MPR vs. axial) was 0.3 mm with no difference in correlation with hemodynamic parameters. Univariate analysis showed moderate to strong correlation for multiple imaging features with hemodynamic parameters. The model achieved an AUC score of 0.82 for the mPAP based risk stratification and 0.74 for the PA SaO2 risk stratification. Contrast agent retention in hepatic vein, mosaic attenuation pattern and the ratio right atrium/left ventricle were the most important features among other parameters. Quantitative and qualitative imaging features of reconstructions correlate with hemodynamic parameters in preoperative CTEPH patients-regardless of MPR adaption. Machine learning based analysis of preoperative imaging features can be used for non-invasive risk stratification. Qualitative features seem to be more important than previously anticipated.
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Affiliation(s)
- Joshua Gawlitza
- Clinic/Institute of Diagnostic and Interventional Radiology, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Straße 22, 81675, Munich, Germany.
| | - Sophie Endres
- Clinic for Diagnostic and Interventional Radiology, Saarland University Medical Center, Kirrberger Strasse 100 (Building 41), 66424, Homburg, Germany
| | - Peter Fries
- Clinic for Diagnostic and Interventional Radiology, Saarland University Medical Center, Kirrberger Strasse 100 (Building 41), 66424, Homburg, Germany
| | - Markus Graf
- Clinic/Institute of Diagnostic and Interventional Radiology, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Straße 22, 81675, Munich, Germany
| | - Heinrike Wilkens
- Cardiology, Angiology, Pulmonary and Intensive Care, Saarland University Medical Center, Kirrberger Strasse 100, 66424, Homburg, Germany
| | - Jonas Stroeder
- Department of Radiology and Nuclear Medicine, University Hospital Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Arno Buecker
- Clinic for Diagnostic and Interventional Radiology, Saarland University Medical Center, Kirrberger Strasse 100 (Building 41), 66424, Homburg, Germany
| | - Alexander Massmann
- Department of Radiology and Nuclear Medicine, Robert-Bosch-Krankenhaus, Auerbachstr. 110, 70376, Stuttgart, Germany
| | - Sebastian Ziegelmayer
- Clinic/Institute of Diagnostic and Interventional Radiology, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Straße 22, 81675, Munich, Germany
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Howard LS, Price LC. Systematic pulmonary embolism follow-up: why we should all do it! Eur Respir J 2024; 63:2400253. [PMID: 38485183 DOI: 10.1183/13993003.00253-2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Accepted: 02/05/2024] [Indexed: 03/19/2024]
Affiliation(s)
- Luke S Howard
- Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Laura C Price
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, Guys and Thomas's NHS Foundation Trust, London, UK
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5
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Lacharie M, Villa A, Milidonis X, Hasaneen H, Chiribiri A, Benedetti G. Role of pulmonary perfusion magnetic resonance imaging for the diagnosis of pulmonary hypertension: A review. World J Radiol 2023; 15:256-273. [PMID: 37823020 PMCID: PMC10563854 DOI: 10.4329/wjr.v15.i9.256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/16/2023] [Accepted: 09/22/2023] [Indexed: 09/27/2023] Open
Abstract
Among five types of pulmonary hypertension, chronic thromboembolic pulmonary hypertension (CTEPH) is the only curable form, but prompt and accurate diagnosis can be challenging. Computed tomography and nuclear medicine-based techniques are standard imaging modalities to non-invasively diagnose CTEPH, however these are limited by radiation exposure, subjective qualitative bias, and lack of cardiac functional assessment. This review aims to assess the methodology, diagnostic accuracy of pulmonary perfusion imaging in the current literature and discuss its advantages, limitations and future research scope.
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Affiliation(s)
- Miriam Lacharie
- Oxford Centre of Magnetic Resonance Imaging, University of Oxford, Oxford OX3 9DU, United Kingdom
| | - Adriana Villa
- Department of Diagnostic and Interventional Radiology, German Oncology Centre, Limassol 4108, Cyprus
| | - Xenios Milidonis
- Deep Camera MRG, CYENS Centre of Excellence, Nicosia, Cyprus, Nicosia 1016, Cyprus
| | - Hadeer Hasaneen
- School of Biomedical Engineering & Imaging Sciences, King's College London, London WC2R 2LS, United Kingdom
| | - Amedeo Chiribiri
- School of Biomedical Engineering and Imaging Sciences, Kings Coll London, Div Imaging Sci, St Thomas Hospital, London WC2R 2LS, United Kingdom
| | - Giulia Benedetti
- Department of Cardiovascular Imaging and Biomedical Engineering, King’s College London, London WC2R 2LS, United Kingdom
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Morris TA, Fernandes TM, Chung J, Vintch JRE, McGuire WC, Thapamagar S, Alotaibi M, Aries S, Dakaeva K. Observational cohort study to validate SEARCH, a novel hierarchical algorithm to define long-term outcomes after pulmonary embolism. BMJ Open 2023; 13:e074470. [PMID: 37770267 PMCID: PMC10546166 DOI: 10.1136/bmjopen-2023-074470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 09/11/2023] [Indexed: 09/30/2023] Open
Abstract
BACKGROUND Chronic dyspnoea and exercise impairment are common after acute pulmonary embolism (PE) but are not defined and quantified sufficiently to serve as outcomes in clinical trials. The planned project will clinically validate a novel method to determine discrete, clinically meaningful diagnoses after acute PE. The method uses an algorithm entitled SEARCH, for symptom screen, exercise testing, arterial perfusion, resting echocardiography, confirmatory imaging and haemodynamic measurements. SEARCH is a stepwise algorithm that sorts patients by a hierarchical series of dichotomous tests into discreet categories of long-term outcomes after PE: asymptomatic, post-PE deconditioning, symptoms from other causes, chronic thromboembolism with ventilatory inefficiency, chronic thromboembolism with small stroke volume augmentation, chronic thromboembolic disease and chronic thromboembolic pulmonary hypertension. METHODS The project will test the inter-rater reliability of the SEARCH algorithm by determining whether it will yield concordant post-PE diagnoses when six independent reviewers review the same diagnostic data on 150 patients evaluated at two time points after PE. The project will also determine whether the post-PE diagnoses are stable, according to the SEARCH algorithm, between the first evaluation and the subsequent one 6 months later. IMPLICATIONS Validation of the SEARCH algorithm would offer clinicians a straightforward method to diagnose post-PE conditions that are rarely distinguished clinically. Their categorisation and definition will allow post-PE conditions to be used as endpoints in clinical trials of acute PE treatment. TRIAL REGISTRATION NUMBER NCT05568927.
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Affiliation(s)
- Timothy A Morris
- Division of Pulmonary, Critical Care and Sleep Medicine, University of California San Diego, La Jolla, California, USA
| | - Timothy M Fernandes
- Division of Pulmonary, Critical Care and Sleep Medicine, University of California San Diego, La Jolla, California, USA
| | - Jina Chung
- Division of Cardiology, The Lundquist Institute, Torrance, California, USA
- Division of Cardiology, Harbor-UCLA Medical Center, Torrance, California, USA
| | - Janine R E Vintch
- Division of Respiratory and Critical Care Physiology and Medicine, The Lundquist Institute, Torrance, California, USA
- Division of Respiratory and Critical Care Physiology and Medicine, Harbor-UCLA Medical Center, Torrance, California, USA
| | - W Cameron McGuire
- Division of Pulmonary, Critical Care and Sleep Medicine, University of California San Diego, La Jolla, California, USA
| | - Suman Thapamagar
- Division of Pulmonary and Critical Care Medicine, Riverside University Health System, Moreno Valley, California, USA
- Division of Pulmonary and Critical Care Medicine, University of California Riverside, Riverside, California, USA
| | - Mona Alotaibi
- Division of Pulmonary, Critical Care and Sleep Medicine, University of California San Diego, La Jolla, California, USA
| | - Savannah Aries
- Division of Pulmonary, Critical Care and Sleep Medicine, University of California San Diego, La Jolla, California, USA
| | - Khadizhat Dakaeva
- Division of Pulmonary, Critical Care and Sleep Medicine, University of California San Diego, La Jolla, California, USA
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7
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Honore PM, Bousbiat I, Perriens E, Blackman S, Vornicu O, Michaux I, Dincq AS, Evrard P, Bulpa P. Chronic thromboembolic pulmonary hypertension: early recognition leads to optimal therapy and drastically decreases mortality! ANNALS OF TRANSLATIONAL MEDICINE 2023; 11:340. [PMID: 37675319 PMCID: PMC10477628 DOI: 10.21037/atm-23-1288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 05/30/2023] [Indexed: 09/08/2023]
Affiliation(s)
- Patrick M. Honore
- ICU, CHU UCL Godinne Namur, UCL Louvain Medical School, Yvoir, Belgium
| | - Ibrahim Bousbiat
- ULB University Centre Hospitalier Universitaire Brugmann, Brussels, Belgium
| | - Emily Perriens
- ULB University Centre Hospitalier Universitaire Brugmann, Brussels, Belgium
| | - Sydney Blackman
- ULB University Centre Hospitalier Universitaire Brugmann, Brussels, Belgium
| | - Ovidiu Vornicu
- ICU, CHU UCL Godinne Namur, UCL Louvain Medical School, Yvoir, Belgium
- ICU and Anesthesiology Depts., CHU UCL Godinne Namur, UCL Louvain Medical School, Yvoir, Belgium
| | - Isabelle Michaux
- ICU, CHU UCL Godinne Namur, UCL Louvain Medical School, Yvoir, Belgium
| | - Anne-Sophie Dincq
- ICU, CHU UCL Godinne Namur, UCL Louvain Medical School, Yvoir, Belgium
- ICU and Anesthesiology Depts., CHU UCL Godinne Namur, UCL Louvain Medical School, Yvoir, Belgium
| | - Patrick Evrard
- ICU, CHU UCL Godinne Namur, UCL Louvain Medical School, Yvoir, Belgium
| | - Pierre Bulpa
- ICU, CHU UCL Godinne Namur, UCL Louvain Medical School, Yvoir, Belgium
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Yuriditsky E, Horowitz JM, Lau JF. Chronic thromboembolic pulmonary hypertension and the post-pulmonary embolism (PE) syndrome. Vasc Med 2023; 28:348-360. [PMID: 37036116 DOI: 10.1177/1358863x231165105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
Abstract
Over a third of patients surviving acute pulmonary embolism (PE) will experience long-term cardiopulmonary limitations. Persistent thrombi, impaired gas exchange, and altered hemodynamics account for aspects of the postpulmonary embolism syndrome that spans mild functional limitations to debilitating chronic thromboembolic pulmonary hypertension (CTEPH), the most worrisome long-term consequence. Though pulmonary endarterectomy is potentially curative for the latter, less is understood surrounding chronic thromboembolic disease (CTED) and post-PE dyspnea. Advances in pulmonary vasodilator therapies and growing expertise in balloon pulmonary angioplasty provide options for a large group of patients ineligible for surgery, or those with persistent postoperative pulmonary hypertension. In this clinical review, we discuss epidemiology and pathophysiology as well as advances in diagnostics and therapeutics surrounding the spectrum of disease that may follow months after acute PE.
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Affiliation(s)
- Eugene Yuriditsky
- Department of Medicine, Division of Cardiology, NYU Langone Health, New York, NY, USA
| | - James M Horowitz
- Department of Medicine, Division of Cardiology, NYU Langone Health, New York, NY, USA
| | - Joe F Lau
- Department of Cardiology, Northwell Health, Zucker School of Medicine at Hofstra/Northwell, New Hyde Park, New York, USA
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Ferrufino RA, Alfadhel A, Gonzalez-Ciccarelli LF, Gebhardt B, Kawabori M, Ortoleva J, Brovman E, Cobey F. Preoperative Pulmonary Artery-to-Aorta Diameter Ratio as a Predictor of Postoperative Severe Right Ventricular Failure and 1-Year Mortality After Left Ventricular Assist Device Implantation. J Cardiothorac Vasc Anesth 2023:S1053-0770(23)00183-0. [PMID: 37173169 DOI: 10.1053/j.jvca.2023.03.014] [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: 12/13/2022] [Revised: 03/04/2023] [Accepted: 03/10/2023] [Indexed: 05/15/2023]
Abstract
OBJECTIVES To evaluate the association of pulmonary artery diameter and pulmonary artery- to-aorta diameter ratio (PA/Ao) with right ventricular failure and mortality within 1 year after left ventricular assist device implantation. DESIGN This was a retrospective observational study between March 2013 and July 2019. SETTING The study was conducted at a single, quaternary-care academic center. PARTICIPANTS Adults (≥18 years old) receiving a durable left ventricular assist device (LVAD). Inclusion if (1) a chest computed tomography scan was performed within 30 days before the LVAD and (2) a right and left heart catheterization was completed within 30 days before the LVAD. INTERVENTIONS A left ventricular assist device was used for intervention. MEASUREMENTS AND MAIN RESULTS A total of 176 patients were included in this study. Median PA diameter and PA/Ao ratio were significantly greater in the severe right ventricular failure (RVF) group (p = 0.001, p < 0.001, respectively). Receiver operating characteristic analysis revealed PA/Ao and RVF as predictors for mortality (area under the curve = 0.725 and 0.933, respectively). Logistic regression analysis-predicted probability gave a PA/Ao ratio cutoff point of 1.04 (p < 0.001). Survival probability was significantly worse in patients with a PA/Ao ratio ≥1.04 (p = 0.005). CONCLUSIONS The PA/Ao ratio is an easily measurable noninvasive indicator that can predict RVF and 1-year mortality after LVAD implantation.
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Affiliation(s)
- Renan A Ferrufino
- Department of Anesthesiology and Perioperative Medicine, Tufts Medical Center, Boston, MA
| | - Abdulaziz Alfadhel
- Department of Anesthesiology, King Saud University College of Medicine, Riyadh, Saudi Arabia
| | - Luis F Gonzalez-Ciccarelli
- Department of Anesthesiology, Perioperative and Pain Medicine. Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
| | - Brian Gebhardt
- Department of Anesthesiology and Perioperative Medicine, University of Massachusetts Memorial Medical Center, Worcester, MA
| | - Masashi Kawabori
- Department of Cardiac Surgery, Cardiovascular Center, Tufts Medical Center, Boston, MA
| | - Jamel Ortoleva
- Department of Anesthesiology and Perioperative Medicine, Tufts Medical Center, Boston, MA
| | - Ethan Brovman
- Department of Anesthesiology and Perioperative Medicine, Tufts Medical Center, Boston, MA
| | - Frederick Cobey
- Department of Anesthesiology and Perioperative Medicine, Tufts Medical Center, Boston, MA
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Huang YS, Chen ZW, Lee WJ, Wu CK, Kuo PH, Hsu HH, Tang SY, Tsai CH, Su MY, Ko CL, Hwang JJ, Lin YH, Chang YC. Treatment Response Evaluation by Computed Tomography Pulmonary Vasculature Analysis in Patients With Chronic Thromboembolic Pulmonary Hypertension. Korean J Radiol 2023; 24:349-361. [PMID: 36907594 PMCID: PMC10067691 DOI: 10.3348/kjr.2022.0675] [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: 09/09/2022] [Revised: 12/21/2022] [Accepted: 01/28/2023] [Indexed: 03/14/2023] Open
Abstract
OBJECTIVE To quantitatively assess the pulmonary vasculature using non-contrast computed tomography (CT) in patients with chronic thromboembolic pulmonary hypertension (CTEPH) pre- and post-treatment and correlate CT-based parameters with right heart catheterization (RHC) hemodynamic and clinical parameters. MATERIALS AND METHODS A total of 30 patients with CTEPH (mean age, 57.9 years; 53% female) who received multimodal treatment, including riociguat for ≥ 16 weeks with or without balloon pulmonary angioplasty and underwent both non-contrast CT for pulmonary vasculature analysis and RHC pre- and post-treatment were included. The radiographic analysis included subpleural perfusion parameters, including blood volume in small vessels with a cross-sectional area ≤ 5 mm² (BV5) and total blood vessel volume (TBV) in the lungs. The RHC parameters included mean pulmonary artery pressure (mPAP), pulmonary vascular resistance (PVR), and cardiac index (CI). Clinical parameters included the World Health Organization (WHO) functional class and 6-minute walking distance (6MWD). RESULTS The number, area, and density of the subpleural small vessels increased after treatment by 35.7% (P < 0.001), 13.3% (P = 0.028), and 39.3% (P < 0.001), respectively. The blood volume shifted from larger to smaller vessels, as indicated by an 11.3% increase in the BV5/TBV ratio (P = 0.042). The BV5/TBV ratio was negatively correlated with PVR (r = -0.26; P = 0.035) and positively correlated with CI (r = 0.33; P = 0.009). The percent change across treatment in the BV5/TBV ratio correlated with the percent change in mPAP (r = -0.56; P = 0.001), PVR (r = -0.64; P < 0.001), and CI (r = 0.28; P = 0.049). Furthermore, the BV5/TBV ratio was inversely associated with the WHO functional classes I-IV (P = 0.004) and positively associated with 6MWD (P = 0.013). CONCLUSION Non-contrast CT measures could quantitatively assess changes in the pulmonary vasculature in response to treatment and were correlated with hemodynamic and clinical parameters.
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Affiliation(s)
- Yu-Sen Huang
- Department of Medical Imaging, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Zheng-Wei Chen
- Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan.,Department of Internal Medicine, National Taiwan University Hospital Yun-Lin Branch, Yun-Lin, Taiwan
| | - Wen-Jeng Lee
- Department of Medical Imaging, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Cho-Kai Wu
- Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Ping-Hung Kuo
- Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Hsao-Hsun Hsu
- Department of Surgery, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Shu-Yu Tang
- Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan.,Department of Internal Medicine, National Taiwan University Hospital Yun-Lin Branch, Yun-Lin, Taiwan
| | - Cheng-Hsuan Tsai
- Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Mao-Yuan Su
- Department of Medical Imaging, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chi-Lun Ko
- Departments of Nuclear Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Juey-Jen Hwang
- Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan.,Department of Internal Medicine, National Taiwan University Hospital Yun-Lin Branch, Yun-Lin, Taiwan
| | - Yen-Hung Lin
- Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Yeun-Chung Chang
- Department of Medical Imaging, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan.
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Simonneau G, Fadel E, Vonk Noordegraaf A, Toshner M, Lang IM, Klok FA, McInnis MC, Screaton N, Madani MM, Martinez G, Salaunkey K, Jenkins DP, Matsubara H, Brénot P, Hoeper MM, Ghofrani HA, Jaïs X, Wiedenroth CB, Guth S, Kim NH, Pepke-Zaba J, Delcroix M, Mayer E. Highlights from the International Chronic Thromboembolic Pulmonary Hypertension Congress 2021. Eur Respir Rev 2023; 32:32/167/220132. [PMID: 36754432 PMCID: PMC9910339 DOI: 10.1183/16000617.0132-2022] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 10/14/2022] [Indexed: 02/10/2023] Open
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is a rare complication of acute pulmonary embolism. It is caused by persistent obstruction of pulmonary arteries by chronic organised fibrotic clots, despite adequate anticoagulation. The pulmonary hypertension is also caused by concomitant microvasculopathy which may progress without timely treatment. Timely and accurate diagnosis requires the combination of imaging and haemodynamic assessment. Optimal therapy should be individualised to each case and determined by an experienced multidisciplinary CTEPH team with the ability to offer all current treatment modalities. This report summarises current knowledge and presents key messages from the International CTEPH Conference, Bad Nauheim, Germany, 2021. Sessions were dedicated to 1) disease definition; 2) pathophysiology, including the impact of the hypertrophied bronchial circulation, right ventricle (dys)function, genetics and inflammation; 3) diagnosis, early after acute pulmonary embolism, using computed tomography and perfusion techniques, and supporting the selection of appropriate therapies; 4) surgical treatment, pulmonary endarterectomy for proximal and distal disease, and peri-operative management; 5) percutaneous approach or balloon pulmonary angioplasty, techniques and complications; and 6) medical treatment, including anticoagulation and pulmonary hypertension drugs, and in combination with interventional treatments. Chronic thromboembolic pulmonary disease without pulmonary hypertension is also discussed in terms of its diagnostic and therapeutic aspects.
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Affiliation(s)
- Gérald Simonneau
- AP-HP, Service de Pneumologie, Hôpital Bicêtre, Université Paris-Sud, Laboratoire d'Excellence en Recherche sur le Médicament et Innovation Thérapeutique and Institut National de la Santé et de la Recherche Médicale Unité 999, Le Kremlin-Bicêtre, France
| | - Elie Fadel
- Research and Innovation Unit, INSERM UMR-S 999, Marie Lannelongue Hospital, Université Paris-Sud, Université Paris-Saclay, Le Plessis-Robinson, France,Department of Thoracic and Vascular Surgery and Heart-Lung Transplantation, Marie Lannelongue Hospital, Université Paris-Sud, Université Paris-Saclay, Le Plessis-Robinson, France,Université Paris-Sud and Université Paris-Saclay, School of Medicine, Kremlin-Bicêtre, France
| | - Anton Vonk Noordegraaf
- Department of Pulmonary Medicine, Amsterdam Universitair Medische Centra, Vrije Universiteit Amsterdam, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
| | - Mark Toshner
- Royal Papworth Hospital, University of Cambridge, Cambridge, UK
| | - Irene M. Lang
- Division of Cardiology, Department of Internal Medicine II, Vienna General Hospital, Medical University of Vienna, Vienna, Austria
| | - Frederikus A. Klok
- Department of Medicine – Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, The Netherlands
| | - Micheal C. McInnis
- Department of Medical Imaging, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | | | - Michael M. Madani
- Cardiovascular and Thoracic Surgery, University of California-San Diego, La Jolla, CA, USA
| | | | - Kiran Salaunkey
- Royal Papworth Hospital, University of Cambridge, Cambridge, UK
| | | | - Hiromi Matsubara
- National Hospital Organization Okayama Medical Center, Okayama, Japan
| | - Philippe Brénot
- Department of Radiology, Hôpital Marie Lannelongue, Le Plessis-Robinson, France
| | - Marius M. Hoeper
- Department of Respiratory Medicine, Hannover Medical School and Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - Hossein A. Ghofrani
- Pulmonary Vascular Research, Justus-Liebig University and Pulmonary Hypertension Division, University Hospital Giessen, Giessen, Germany,Department of Pneumology, Kerckhoff Clinic, Bad Nauheim, Germany
| | - Xavier Jaïs
- AP-HP, Service de Pneumologie, Hôpital Bicêtre, Université Paris-Sud, Laboratoire d'Excellence en Recherche sur le Médicament et Innovation Thérapeutique and Institut National de la Santé et de la Recherche Médicale Unité 999, Le Kremlin-Bicêtre, France
| | | | - Stefan Guth
- Department of Thoracic Surgery, Kerckhoff Clinic, Bad Nauheim, Germany
| | - Nick H. Kim
- Division of Pulmonary and Critical Care Medicine, University of California-San Diego, La Jolla, CA, USA
| | | | - Marion Delcroix
- Clinical Department of Respiratory Diseases, University Hospitals of Leuven and Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven - University of Leuven, Leuven, Belgium .,M. Delcroix and E. Mayer equal contribution (co-last authors)
| | - Eckhard Mayer
- Department of Thoracic Surgery, Kerckhoff Clinic, Bad Nauheim, Germany,Meeting organiser,M. Delcroix and E. Mayer equal contribution (co-last authors)
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12
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Nishiyama A, Kawata N, Yokota H, Hayano K, Matsuoka S, Shigeta A, Sugiura T, Tanabe N, Ishida K, Tatsumi K, Suzuki T, Uno T. Heterogeneity of Lung Density in Patients With Chronic Thromboembolic Pulmonary Hypertension (CTEPH). Acad Radiol 2022; 29:e229-e239. [PMID: 35466051 DOI: 10.1016/j.acra.2022.03.002] [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: 11/05/2021] [Revised: 02/21/2022] [Accepted: 03/01/2022] [Indexed: 11/29/2022]
Abstract
RATIONALE AND OBJECTIVES Pulmonary endarterectomy (PEA) is one of the most effective treatments for chronic thromboembolic pulmonary hypertension (CTEPH). Right heart catheterization (RHC) is the gold standard assessment for pulmonary circulatory dynamics. However, computed tomography (CT) is less invasive than RHC and can elucidate some of the morphological changes caused by thromboembolism. We hypothesized that CT could facilitate the evaluation of heterogeneous pulmonary perfusion. This study investigated whether CT imaging features reflect the disease severity and changes in pulmonary circulatory dynamics in patients with CTEPH before and after PEA. MATERIALS AND METHODS This retrospective study included 58 patients with CTEPH who underwent PEA. Pre-PEA and post-PEA CT images were assessed for heterogeneity using CT texture analysis (CTTA). The CT parameters were compared with the results of the RHC and other clinical indices and analyzed with receiver operating characteristic curves analysis for patients with and without residual pulmonary hypertension (PH) (post-PEA mean pulmonary artery pressure ≥ 25 mmHg). RESULTS CT measurements reflecting heterogeneity were significantly correlated with mean pulmonary artery pressure. Kurtosis, skewness, and uniformity were significantly lower, and entropy was significantly higher in patients with residual PH than patients without residual PH. Area under the curve values of pre-PEA and post-PEA entropy between patients with and without residual PH were 0.71 (95% confidence interval 0.57-0.84) and 0.75 (0.63-0.88), respectively. CONCLUSION Heterogeneity of lung density might reflect pulmonary circulatory dynamics, and CTTA for heterogeneity could be a less invasive technique for evaluation of changes in pulmonary circulatory dynamics in patients with CTEPH undergoing PEA.
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Affiliation(s)
- Akira Nishiyama
- Department of Radiology (A.N.), Chiba University Hospital, Chiba, Japan; Department of Respirology (N.K., A.S., T.S., K.T., T.S.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Diagnostic Radiology and Radiation Oncology (H.Y., T.U.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Frontier Surgery (K.H.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Radiology (S.M.), St. Marianna University School of Medicine, Kanagawa, Japan; Department of Respirology (N.T.), Chibaken Saiseikai Narashino Hospital, Chiba, Japan; Department of Cardiovascular Surgery (K.I.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Cardiovascular Surgery (K.I.), Eastern Chiba Medical Center, Togane, Japan.
| | - Naoko Kawata
- Department of Radiology (A.N.), Chiba University Hospital, Chiba, Japan; Department of Respirology (N.K., A.S., T.S., K.T., T.S.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Diagnostic Radiology and Radiation Oncology (H.Y., T.U.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Frontier Surgery (K.H.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Radiology (S.M.), St. Marianna University School of Medicine, Kanagawa, Japan; Department of Respirology (N.T.), Chibaken Saiseikai Narashino Hospital, Chiba, Japan; Department of Cardiovascular Surgery (K.I.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Cardiovascular Surgery (K.I.), Eastern Chiba Medical Center, Togane, Japan
| | - Hajime Yokota
- Department of Radiology (A.N.), Chiba University Hospital, Chiba, Japan; Department of Respirology (N.K., A.S., T.S., K.T., T.S.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Diagnostic Radiology and Radiation Oncology (H.Y., T.U.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Frontier Surgery (K.H.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Radiology (S.M.), St. Marianna University School of Medicine, Kanagawa, Japan; Department of Respirology (N.T.), Chibaken Saiseikai Narashino Hospital, Chiba, Japan; Department of Cardiovascular Surgery (K.I.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Cardiovascular Surgery (K.I.), Eastern Chiba Medical Center, Togane, Japan
| | - Koichi Hayano
- Department of Radiology (A.N.), Chiba University Hospital, Chiba, Japan; Department of Respirology (N.K., A.S., T.S., K.T., T.S.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Diagnostic Radiology and Radiation Oncology (H.Y., T.U.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Frontier Surgery (K.H.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Radiology (S.M.), St. Marianna University School of Medicine, Kanagawa, Japan; Department of Respirology (N.T.), Chibaken Saiseikai Narashino Hospital, Chiba, Japan; Department of Cardiovascular Surgery (K.I.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Cardiovascular Surgery (K.I.), Eastern Chiba Medical Center, Togane, Japan
| | - Shin Matsuoka
- Department of Radiology (A.N.), Chiba University Hospital, Chiba, Japan; Department of Respirology (N.K., A.S., T.S., K.T., T.S.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Diagnostic Radiology and Radiation Oncology (H.Y., T.U.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Frontier Surgery (K.H.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Radiology (S.M.), St. Marianna University School of Medicine, Kanagawa, Japan; Department of Respirology (N.T.), Chibaken Saiseikai Narashino Hospital, Chiba, Japan; Department of Cardiovascular Surgery (K.I.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Cardiovascular Surgery (K.I.), Eastern Chiba Medical Center, Togane, Japan
| | - Ayako Shigeta
- Department of Radiology (A.N.), Chiba University Hospital, Chiba, Japan; Department of Respirology (N.K., A.S., T.S., K.T., T.S.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Diagnostic Radiology and Radiation Oncology (H.Y., T.U.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Frontier Surgery (K.H.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Radiology (S.M.), St. Marianna University School of Medicine, Kanagawa, Japan; Department of Respirology (N.T.), Chibaken Saiseikai Narashino Hospital, Chiba, Japan; Department of Cardiovascular Surgery (K.I.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Cardiovascular Surgery (K.I.), Eastern Chiba Medical Center, Togane, Japan
| | - Toshihiko Sugiura
- Department of Radiology (A.N.), Chiba University Hospital, Chiba, Japan; Department of Respirology (N.K., A.S., T.S., K.T., T.S.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Diagnostic Radiology and Radiation Oncology (H.Y., T.U.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Frontier Surgery (K.H.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Radiology (S.M.), St. Marianna University School of Medicine, Kanagawa, Japan; Department of Respirology (N.T.), Chibaken Saiseikai Narashino Hospital, Chiba, Japan; Department of Cardiovascular Surgery (K.I.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Cardiovascular Surgery (K.I.), Eastern Chiba Medical Center, Togane, Japan
| | - Nobuhiko Tanabe
- Department of Radiology (A.N.), Chiba University Hospital, Chiba, Japan; Department of Respirology (N.K., A.S., T.S., K.T., T.S.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Diagnostic Radiology and Radiation Oncology (H.Y., T.U.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Frontier Surgery (K.H.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Radiology (S.M.), St. Marianna University School of Medicine, Kanagawa, Japan; Department of Respirology (N.T.), Chibaken Saiseikai Narashino Hospital, Chiba, Japan; Department of Cardiovascular Surgery (K.I.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Cardiovascular Surgery (K.I.), Eastern Chiba Medical Center, Togane, Japan
| | - Keiichi Ishida
- Department of Radiology (A.N.), Chiba University Hospital, Chiba, Japan; Department of Respirology (N.K., A.S., T.S., K.T., T.S.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Diagnostic Radiology and Radiation Oncology (H.Y., T.U.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Frontier Surgery (K.H.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Radiology (S.M.), St. Marianna University School of Medicine, Kanagawa, Japan; Department of Respirology (N.T.), Chibaken Saiseikai Narashino Hospital, Chiba, Japan; Department of Cardiovascular Surgery (K.I.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Cardiovascular Surgery (K.I.), Eastern Chiba Medical Center, Togane, Japan
| | - Koichiro Tatsumi
- Department of Radiology (A.N.), Chiba University Hospital, Chiba, Japan; Department of Respirology (N.K., A.S., T.S., K.T., T.S.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Diagnostic Radiology and Radiation Oncology (H.Y., T.U.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Frontier Surgery (K.H.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Radiology (S.M.), St. Marianna University School of Medicine, Kanagawa, Japan; Department of Respirology (N.T.), Chibaken Saiseikai Narashino Hospital, Chiba, Japan; Department of Cardiovascular Surgery (K.I.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Cardiovascular Surgery (K.I.), Eastern Chiba Medical Center, Togane, Japan
| | - Takuji Suzuki
- Department of Radiology (A.N.), Chiba University Hospital, Chiba, Japan; Department of Respirology (N.K., A.S., T.S., K.T., T.S.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Diagnostic Radiology and Radiation Oncology (H.Y., T.U.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Frontier Surgery (K.H.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Radiology (S.M.), St. Marianna University School of Medicine, Kanagawa, Japan; Department of Respirology (N.T.), Chibaken Saiseikai Narashino Hospital, Chiba, Japan; Department of Cardiovascular Surgery (K.I.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Cardiovascular Surgery (K.I.), Eastern Chiba Medical Center, Togane, Japan
| | - Takashi Uno
- Department of Radiology (A.N.), Chiba University Hospital, Chiba, Japan; Department of Respirology (N.K., A.S., T.S., K.T., T.S.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Diagnostic Radiology and Radiation Oncology (H.Y., T.U.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Frontier Surgery (K.H.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Radiology (S.M.), St. Marianna University School of Medicine, Kanagawa, Japan; Department of Respirology (N.T.), Chibaken Saiseikai Narashino Hospital, Chiba, Japan; Department of Cardiovascular Surgery (K.I.), Chiba University Graduate School of Medicine, Chiba, Japan; Department of Cardiovascular Surgery (K.I.), Eastern Chiba Medical Center, Togane, Japan
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13
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Shikhare S, Balki I, Shi Y, Kavanagh J, Donahoe L, Xu W, Rozenberg D, de Perrot M, McInnis M. Right-to-left ventricle ratio determined by machine learning algorithms on CT pulmonary angiography images predicts prolonged ICU length of stay in operated chronic thromboembolic pulmonary hypertension. Br J Radiol 2022; 95:20210722. [PMID: 36043477 PMCID: PMC9793468 DOI: 10.1259/bjr.20210722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 05/06/2022] [Accepted: 08/13/2022] [Indexed: 01/09/2023] Open
Abstract
OBJECTIVE Right-to-left ventricle diameter ratio (dRV/dLV) on CT pulmonary angiography (CTPA) is a predictor of outcomes in non-operated chronic thromboembolic pulmonary hypertension (CTEPH) patients. The purpose of this study is to evaluate the performance of a novel machine learning (ML) algorithm for dRV/dLV measurement in operated CTEPH patients and its association with post-operative outcomes. METHODS This retrospective study reviewed consecutive CTEPH patients who underwent pulmonary endarterectomy between 2013 and 2017. ML calculated dRV/dLV on pre-operative CTPA and compared with manual measures. Associations of dRV/dLV with patient characteristics and post-operative outcomes were evaluated including intensive care (ICU) and hospital length of stay (LOS) using multivariable linear regression analysis. Prolonged LOS was defined as greater than median. RESULTS ML segmented the ventricles in 99/125 (79%) patients. The most common cause of failure was misidentification of the moderator band as the interventricular septum (7.9%). Mean dRV/dLV by ML was 1.4 ± 0.4 and strongly correlated with manual measures (r = 0.9-0.96 p < 0.0001). dRV/dLV was moderately correlated with measures of pulmonary hypertension on right heart catheterization and RV dilatation on echocardiogram (r = 0.5-0.6, p < 0.0001). dRV/dLV ≥ 1.2 was associated with proximal Jamieson type disease (p = 0.032), longer cardiopulmonary bypass (p = 0.037), aortic cross-clamp (p = 0.022) and circulatory arrest (p < 0.001) at surgery and dRV/dLV ≥ 1.6 with post-operative ECMO (p = 0.006). dRV/dLV was independently associated with prolonged ICU LOS (OR = 3.79, 95% CI 1.1-13.06, p = 0.035). CONCLUSION dRV/dLV was associated with CTEPH severity and independently associated with prolonged ICU LOS. This CT parameter may therefore assist in perioperative planning. Further refinement of the ML algorithm or CTPA technique is required to avoid errors in ventricular segmentation. ADVANCES IN KNOWLEDGE Automated right-to-left ventricle ratio measurement by machine learning is feasible and is independently associated with outcome after pulmonary endarterectomy.
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Affiliation(s)
| | - Indranil Balki
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Yuliang Shi
- Department of Biostatistics, Princess Margaret Cancer Center, Toronto, Canada
| | - John Kavanagh
- Division of Cardiothoracic Imaging, Joint Department of Medical Imaging, University of Toronto, Toronto, Canada
| | - Laura Donahoe
- Division of Thoracic Surgery, Department of Surgery, University of Toronto, Toronto General Hospital, Toronto, Canada
| | - Wei Xu
- Department of Biostatistics, Princess Margaret Cancer Center, Toronto, Canada
| | - Dmitry Rozenberg
- Division of Respirology, Department of Medicine, University of Toronto, Toronto General Hospital, Toronto, Canada
| | - Marc de Perrot
- Division of Thoracic Surgery, Department of Surgery, University of Toronto, Toronto General Hospital, Toronto, Canada
| | - Micheal McInnis
- Division of Cardiothoracic Imaging, Joint Department of Medical Imaging, University of Toronto, Toronto, Canada
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14
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Opitz I, Patella M, Lauk O, Inci I, Bettex D, Horisberger T, Schüpbach R, Keller DI, Frauenfelder T, Kucher N, Granton J, Pfammatter T, de Perrot M, Ulrich S. Acute on Chronic Thromboembolic Pulmonary Hypertension: Case Series and Review of Management. J Clin Med 2022; 11:jcm11144224. [PMID: 35887991 PMCID: PMC9317831 DOI: 10.3390/jcm11144224] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 07/15/2022] [Accepted: 07/16/2022] [Indexed: 02/04/2023] Open
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is a distinct form of precapillary pulmonary hypertension classified as group 4 by the World Symposium on Pulmonary Hypertension (WSPH) and should be excluded during an episode of acute pulmonary embolism (PE). Patients presenting to emergency departments with sudden onset of signs and symptoms of acute PE may already have a pre-existing CTEPH condition decompensated by the new PE episode. Identifying an underlying and undiagnosed CTEPH during acute PE, while challenging, is an important consideration as it will alter the patients’ acute and long-term management. Differential diagnosis and evaluation require an interdisciplinary expert team. Analysis of the clinical condition, the CT angiogram, and the hemodynamic situation are important considerations; patients with CTEPH usually have significantly higher sPAP at the time of index PE, which is unusual and unattainable in the context of acute PE and a naïve right ventricle. The imaging may reveal signs of chronic disease such as right ventricle hypertrophy bronchial collaterals and atypical morphology of the thrombus. There is no standard for the management of acute on chronic CTEPH. Herein, we provide a diagnostic and management algorithm informed by several case descriptions and a review of the literature.
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Affiliation(s)
- Isabelle Opitz
- Department of Thoracic Surgery, University Hospital Zurich, 8091 Zurich, Switzerland; (M.P.); (O.L.); (I.I.)
- Correspondence: ; Tel.: +41-44-255-88-01
| | - Miriam Patella
- Department of Thoracic Surgery, University Hospital Zurich, 8091 Zurich, Switzerland; (M.P.); (O.L.); (I.I.)
| | - Olivia Lauk
- Department of Thoracic Surgery, University Hospital Zurich, 8091 Zurich, Switzerland; (M.P.); (O.L.); (I.I.)
| | - Ilhan Inci
- Department of Thoracic Surgery, University Hospital Zurich, 8091 Zurich, Switzerland; (M.P.); (O.L.); (I.I.)
| | - Dominique Bettex
- Institute of Anaesthesiology, University Hospital Zurich, 8091 Zurich, Switzerland; (D.B.); (T.H.)
| | - Thomas Horisberger
- Institute of Anaesthesiology, University Hospital Zurich, 8091 Zurich, Switzerland; (D.B.); (T.H.)
| | - Reto Schüpbach
- Institute for Intensive Care Medicine, University Hospital Zurich, 8091 Zurich, Switzerland;
| | - Dagmar I. Keller
- Emergency Department, University Hospital Zurich, 8091 Zurich, Switzerland;
| | - Thomas Frauenfelder
- Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland; (T.F.); (T.P.)
| | - Nils Kucher
- Clinic of Angiology, University Hospital Zurich, 8091 Zurich, Switzerland;
| | - John Granton
- Division of Respirology, University Health Network, Toronto, ON M5G 2C4, Canada;
| | - Thomas Pfammatter
- Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland; (T.F.); (T.P.)
| | - Marc de Perrot
- Division of Thoracic Surgery, Department of Surgery, University of Toronto, Toronto General Hospital, Toronto, ON M5G 2C4, Canada;
| | - Silvia Ulrich
- Department of Pulmonology, University Hospital Zurich, 8091 Zurich, Switzerland;
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15
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McInnis M. Imaging Advances in Chronic Thromboembolic Pulmonary Hypertension. Semin Roentgenol 2022; 57:324-334. [DOI: 10.1053/j.ro.2022.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 06/29/2022] [Accepted: 07/02/2022] [Indexed: 11/11/2022]
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16
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Cueto-Robledo G, Roldan-Valadez E, Graniel-Palafox LE, Garcia-Cesar M, Torres-Rojas MB, Enriquez-Garcia R, Cueto-Romero HD, Rivera-Sotelo N, Perez-Calatayud AA. Chronic thromboembolic pulmonary hypertension (CTEPH): a review of another sequel of severe post-Covid-19 pneumonia. Curr Probl Cardiol 2022:101187. [PMID: 35346727 PMCID: PMC8956357 DOI: 10.1016/j.cpcardiol.2022.101187] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 02/08/2023]
Abstract
The spectrum of pulmonary parenchymal and vascular pathologies related to the COVID-19 have emerged. There is evidence of a specific susceptibility related to thrombotic microangiopathy in situ and a complex immune-inflammatory cascade, especially in the pulmonary vascular bed. The potential to lead to transient or self-correcting sequelae of pulmonary vascular injury will only become apparent with longer-term follow-up. In this review, we aimed to present the findings in a group of patients with severe pneumonia due to covid-19 complicated by acute pe documented by chest angiography, who during a follow-up of more than 3 months with oral anticoagulant met clinical, hemodynamic, and imaging criteria of chronic thromboembolic pulmonary hypertension. We present a brief review of the epidemiology, pathophysiology, clinical findings, comorbidities, treatment, and imaging findings of chronic thromboembolic pulmonary hypertension as a sequel of severe post-covid-19 pneumonia; and compared and discussed these findings with similar reports from the medical literature.
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17
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Yanagisawa A, Naito A, Jujo-Sanada T, Tanabe N, Ishida K, Matsumiya G, Suda R, Kasai H, Sekine A, Sugiura T, Shigeta A, Sakao S, Tatsumi K, Suzuki T. Vascular involvement in chronic thromboembolic pulmonary hypertension is associated with spirometry obstructive impairment. BMC Pulm Med 2021; 21:407. [PMID: 34886828 PMCID: PMC8656012 DOI: 10.1186/s12890-021-01779-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 12/03/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Chronic thromboembolic pulmonary hypertension (CTEPH) is a type of pulmonary hypertension caused by persistent thromboembolism of the pulmonary arteries. In clinical practice, CTEPH patients often show obstructive ventilatory impairment, even in the absence of a smoking history. Recent reports imply a tendency for CTEPH patients to have a lower FEV1.0; however, the mechanism underlying obstructive impairment remains unknown. METHODS We retrospectively analyzed CTEPH patients who underwent a pulmonary function test and respiratory impedance test to evaluate their exertional dyspnea during admission for right heart catheterization from January 2000 to December 2019. We excluded patients with a smoking history to rule out the effect of smoking on obstructive impairment. RESULTS A total of 135 CTEPH patients were analyzed. The median FEV1.0/FVC was 76.0%, %FEV 1.0 had a negative correlation with the mean pulmonary artery pressure and pulmonary vascular resistance and the CT Angiogram (CTA) obstruction score. A multivariate regression analysis revealed that the CTA obstruction score was an independent factor of a lower %FEV1.0. In the 54 patients who underwent pulmonary endarterectomy, %FEV1.0 was improved in some cases and was not in some. Mean PAP largely decreased after PEA in the better %FEV1.0 improved cases, suggesting that vascular involvement in CTEPH could be associated with spirometry obstructive impairment. CONCLUSION %FEV1.0 had a significant correlation with the CTA obstruction score. Obstructive impairment might have an etiological relationship with vascular involvement. Further investigations could shed new light on the etiology of CTEPH.
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Affiliation(s)
- Asako Yanagisawa
- Department of Respirology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-Ku, Chiba, 260-8670, Japan.
| | - Akira Naito
- Department of Respirology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-Ku, Chiba, 260-8670, Japan
| | - Takayuki Jujo-Sanada
- Department of Respirology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-Ku, Chiba, 260-8670, Japan
| | - Nobuhiro Tanabe
- Department of Respirology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-Ku, Chiba, 260-8670, Japan.,Pulmonary Hypertension Center, Chibaken Saiseikai Narashino Hospital, Narashino, 275-8580, Japan
| | - Keiichi Ishida
- Department of Cardiovascular Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Goro Matsumiya
- Department of Cardiovascular Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Rika Suda
- Pulmonary Hypertension Center, Chibaken Saiseikai Narashino Hospital, Narashino, 275-8580, Japan
| | - Hajime Kasai
- Department of Respirology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-Ku, Chiba, 260-8670, Japan
| | - Ayumi Sekine
- Department of Respirology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-Ku, Chiba, 260-8670, Japan
| | - Toshihiko Sugiura
- Department of Respirology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-Ku, Chiba, 260-8670, Japan
| | - Ayako Shigeta
- Department of Respirology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-Ku, Chiba, 260-8670, Japan
| | - Seiichiro Sakao
- Department of Respirology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-Ku, Chiba, 260-8670, Japan
| | - Koichiro Tatsumi
- Department of Respirology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-Ku, Chiba, 260-8670, Japan
| | - Takuji Suzuki
- Department of Respirology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-Ku, Chiba, 260-8670, Japan
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Prediction of chronic thromboembolic pulmonary hypertension with standardised evaluation of initial computed tomography pulmonary angiography performed for suspected acute pulmonary embolism. Eur Radiol 2021; 32:2178-2187. [PMID: 34854928 PMCID: PMC8921171 DOI: 10.1007/s00330-021-08364-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 09/05/2021] [Accepted: 09/27/2021] [Indexed: 11/21/2022]
Abstract
Objectives Closer reading of computed tomography pulmonary angiography (CTPA) scans of patients presenting with acute pulmonary embolism (PE) may identify those at high risk of developing chronic thromboembolic pulmonary hypertension (CTEPH). We aimed to validate the predictive value of six radiological predictors that were previously proposed. Methods Three hundred forty-one patients with acute PE were prospectively followed for development of CTEPH in six European hospitals. Index CTPAs were analysed post hoc by expert chest radiologists blinded to the final diagnosis. The accuracy of the predictors using a predefined threshold for ‘high risk’ (≥ 3 predictors) and the expert overall judgment on the presence of CTEPH were assessed. Results CTEPH was confirmed in nine patients (2.6%) during 2-year follow-up. Any sign of chronic thrombi was already present in 74/341 patients (22%) on the index CTPA, which was associated with CTEPH (OR 7.8, 95%CI 1.9–32); 37 patients (11%) had ≥ 3 of 6 radiological predictors, of whom 4 (11%) were diagnosed with CTEPH (sensitivity 44%, 95%CI 14–79; specificity 90%, 95%CI 86–93). Expert judgment raised suspicion of CTEPH in 27 patients, which was confirmed in 8 (30%; sensitivity 89%, 95%CI 52–100; specificity 94%, 95%CI 91–97). Conclusions The presence of ≥ 3 of 6 predefined radiological predictors was highly specific for a future CTEPH diagnosis, comparable to overall expert judgment, while the latter was associated with higher sensitivity. Dedicated CTPA reading for signs of CTEPH may therefore help in early detection of CTEPH after PE, although in our cohort this strategy would not have detected all cases. Key Points • Three expert chest radiologists re-assessed CTPA scans performed at the moment of acute pulmonary embolism diagnosis and observed a high prevalence of chronic thrombi and signs of pulmonary hypertension. • On these index scans, the presence of ≥ 3 of 6 predefined radiological predictors was highly specific for a future diagnosis of chronic thromboembolic pulmonary hypertension (CTEPH), comparable to overall expert judgment. • Dedicated CTPA reading for signs of CTEPH may help in early detection of CTEPH after acute pulmonary embolism. Supplementary Information The online version contains supplementary material available at 10.1007/s00330-021-08364-0.
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Boon GJAM, Jairam PM, Groot GMC, van Rooden CJ, Ende-Verhaar YM, Beenen LFM, Kroft LJM, Bogaard HJ, Huisman MV, Symersky P, Vonk Noordegraaf A, Meijboom LJ, Klok FA. Identification of chronic thromboembolic pulmonary hypertension on CTPAs performed for diagnosing acute pulmonary embolism depending on level of expertise. Eur J Intern Med 2021; 93:64-70. [PMID: 34294517 DOI: 10.1016/j.ejim.2021.07.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 06/30/2021] [Accepted: 07/08/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND Expert reading often reveals radiological signs of chronic thromboembolic pulmonary hypertension (CTEPH) or chronic PE on computed tomography pulmonary angiography (CTPA) performed at the time of acute pulmonary embolism (PE) presentation preceding CTEPH. Little is known about the accuracy and reproducibility of CTPA reading by radiologists in training in this setting. OBJECTIVES To evaluate 1) whether signs of CTEPH or chronic PE are routinely reported on CTPA for suspected PE; and 2) whether CTEPH-non-expert readers achieve comparable predictive accuracy to CTEPH-expert radiologists after dedicated instruction. METHODS Original reports of CTPAs demonstrating acute PE in 50 patients whom ultimately developed CTEPH, and those of 50 PE who did not, were screened for documented signs of CTEPH. All scans were re-assessed by three CTEPH-expert readers and two CTEPH-non-expert readers (blinded and independently) for predefined signs and overall presence of CTEPH. RESULTS Signs of chronic PE were mentioned in the original reports of 14/50 cases (28%), while CTEPH-expert radiologists had recognized 44/50 (88%). Using a standardized definition (≥3 predefined radiological signs), moderate-to-good agreement was reached between CTEPH-non-expert readers and the experts' consensus (k-statistics 0.46; 0.61) at slightly lower sensitivities. The CTEPH-non-expert readers had moderate agreement on the presence of CTEPH (κ-statistic 0.38), but both correctly identified most cases (80% and 88%, respectively). CONCLUSIONS Concomitant signs of CTEPH were poorly documented in daily practice, while most CTEPH patients were identified by CTEPH-non-expert readers after dedicated instruction. These findings underline the feasibility of achieving earlier CTEPH diagnosis by assessing CTPAs more attentively.
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Affiliation(s)
- Gudula J A M Boon
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands.
| | - Pushpa M Jairam
- Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Gerie M C Groot
- Department of Radiology, Medical Center Gelderse Vallei, Ede, the Netherlands
| | | | - Yvonne M Ende-Verhaar
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - Ludo F M Beenen
- Department of Radiology, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Lucia J M Kroft
- Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Harm Jan Bogaard
- Department of Pulmonary Medicine, Amsterdam Cardiovascular Sciences, Amsterdam UMC, VU University Medical Center, Amsterdam, the Netherlands
| | - Menno V Huisman
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - Petr Symersky
- Department of Cardiothoracic Surgery, Amsterdam UMC, VU University Medical Center, Amsterdam, the Netherlands
| | - Anton Vonk Noordegraaf
- Department of Pulmonary Medicine, Amsterdam Cardiovascular Sciences, Amsterdam UMC, VU University Medical Center, Amsterdam, the Netherlands
| | - Lilian J Meijboom
- Department of Radiology and Nuclear Medicine, Amsterdam Cardiovascular Sciences, Amsterdam UMC, VU University Medical Center, Amsterdam, The Netherlands
| | - Frederikus A Klok
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
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20
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Maschke SK, Werncke T, Dewald CLA, Becker LS, Meine TC, Olsson KM, Hoeper MM, Wacker FK, Meyer BC, Hinrichs JB. Depiction of mosaic perfusion in chronic thromboembolic pulmonary hypertension (CTEPH) on C-arm computed tomography compared to computed tomography pulmonary angiogram (CTPA). Sci Rep 2021; 11:20042. [PMID: 34625646 PMCID: PMC8501057 DOI: 10.1038/s41598-021-99658-2] [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: 06/11/2021] [Accepted: 09/23/2021] [Indexed: 11/16/2022] Open
Abstract
To evaluate mosaic perfusion patterns and vascular lesions in patients with chronic thromboembolic pulmonary hypertension (CTEPH) using C-Arm computed tomography (CACT) compared to computed tomography pulmonary angiography (CTPA). We included 41 patients (18 female; mean age 59.9 ± 18.3 years) with confirmed CTEPH who underwent CACT and CTPA within 21 days (average 5.3 ± 5.2). Two readers (R1; R2) independently evaluated datasets from both imaging techniques for mosaic perfusion patterns and presence of CTEPH-typical vascular lesions. The number of pulmonary arterial segments with typical findings was evaluated and the percentage of affected segments was calculated and categorized: < 25%; 25–49%; 50–75%; < 75% of all pulmonary arterial segments affected by thromboembolic vascular lesions. Inter-observer agreement was calculated for both modalities using the intraclass-correlation-coefficient (ICC). Based on consensus reading the inter-modality agreement (CACTcons vs. CTPAcons) was calculated using the ICC. Inter-observer agreement was excellent for central vascular lesions (ICC > 0.87) and the percentage of affected segments (ICC > 0.76) and good for the perceptibility of mosaic perfusion (ICC > 0.6) and attribution of the pattern of mosaic perfusion (ICC > 0.6) for both readers on CACT and CTPA. Inter-modality agreement was excellent for the perceptibility of mosaic perfusion (ICC = 1), the present perfusion pattern (ICC = 1) and central vascular lesions (ICC = 1). However, inter-modality agreement for the percentage of affected segments was fair (ICC = 0.50), with a greater proportion of identified affected segments on CACTcons. CACT demonstrates a high agreement with CTPA regarding the detection of mosaic perfusion. CACT detects a higher number of peripheral vascular lesions compared to CTPA.
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Affiliation(s)
- Sabine K Maschke
- Department of Diagnostic and Interventional Radiology, Member of the German Center for Lung Research (DZL), Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Thomas Werncke
- Department of Diagnostic and Interventional Radiology, Member of the German Center for Lung Research (DZL), Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Cornelia L A Dewald
- Department of Diagnostic and Interventional Radiology, Member of the German Center for Lung Research (DZL), Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Lena S Becker
- Department of Diagnostic and Interventional Radiology, Member of the German Center for Lung Research (DZL), Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Timo C Meine
- Department of Diagnostic and Interventional Radiology, Member of the German Center for Lung Research (DZL), Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Karen M Olsson
- Clinic for Pneumology, Member of the German Center for Lung Research (DZL), Hannover Medical School, Hannover, Germany
| | - Marius M Hoeper
- Clinic for Pneumology, Member of the German Center for Lung Research (DZL), Hannover Medical School, Hannover, Germany
| | - Frank K Wacker
- Department of Diagnostic and Interventional Radiology, Member of the German Center for Lung Research (DZL), Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Bernhard C Meyer
- Department of Diagnostic and Interventional Radiology, Member of the German Center for Lung Research (DZL), Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Jan B Hinrichs
- Department of Diagnostic and Interventional Radiology, Member of the German Center for Lung Research (DZL), Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany.
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21
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Calé R, Ferreira F, Pereira AR, Saraiva C, Santos A, Alegria S, Repolho D, Vitorino S, Santos P, Morgado G, Brenot P, Loureiro MJ, Pereira H. Balloon pulmonary angioplasty protocol in a Portuguese pulmonary hypertension expert center. Rev Port Cardiol 2021; 40:653-665. [PMID: 34503703 DOI: 10.1016/j.repce.2020.11.026] [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: 08/19/2020] [Accepted: 11/02/2020] [Indexed: 10/20/2022] Open
Abstract
INTRODUCTION Balloon pulmonary angioplasty (BPA) has emerged as a promising therapeutic option for patients with chronic thromboembolic pulmonary hypertension (CTEPH) who are not eligible for pulmonary thromboendarterectomy (PEA) or who have recurrent or persistent pulmonary hypertension after surgery. There is no standardized technique for BPA and, its complexity and high risk of severe complications, requires skills and appropriate training and should be reserved for expert CTEPH centers, as a complementary intervention to medical and surgical therapy. OBJECTIVE The purpose of this document is to describe the BPA protocol used at a high-volume center nationwide, validated by its results. METHODS The present protocol includes technical details, definition of outcomes and complications, as well as patient full diagnostic work-up and treatment algorithm, before and after BPA. RESULTS The technical, hemodynamic, and clinical results of the application of this protocol will be subject of a later publication where they will be described in detail. In conclusion, we present a percutaneous intervention protocol in the treatment of pulmonary hypertension in the context of chronic pulmonary thromboembolism, validated by its clinical, hemodynamic, and technical results.
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Affiliation(s)
- Rita Calé
- Cardiology Department, Hospital Garcia de Orta, Almada, Portugal.
| | - Filipa Ferreira
- Cardiology Department, Hospital Garcia de Orta, Almada, Portugal
| | - Ana Rita Pereira
- Cardiology Department, Hospital Garcia de Orta, Almada, Portugal
| | - Carla Saraiva
- Radiology Department, Hospital de Santa Cruz, Centro Hospitalar de Lisboa Ocidental, Carnaxide, Portugal
| | - Ana Santos
- Radiology Department, Hospital de Santa Cruz, Centro Hospitalar de Lisboa Ocidental, Carnaxide, Portugal
| | - Sofia Alegria
- Cardiology Department, Hospital Garcia de Orta, Almada, Portugal
| | - Débora Repolho
- Cardiology Department, Hospital Garcia de Orta, Almada, Portugal
| | - Sílvia Vitorino
- Cardiology Department, Hospital Garcia de Orta, Almada, Portugal
| | - Pedro Santos
- Cardiology Department, Hospital Garcia de Orta, Almada, Portugal
| | - Gonçalo Morgado
- Cardiology Department, Hospital Garcia de Orta, Almada, Portugal
| | - Philippe Brenot
- Radiology Department, Hospital Marie Lannelongue, Le Plessis Robinson, France; Universidade Paris-Sud, Faculdade de Medicina, Universidade Paris-Saclay, Le Kremlin-Bicêtre, France
| | | | - Hélder Pereira
- Cardiology Department, Hospital Garcia de Orta, Almada, Portugal; CCUL, CAML, University of Lisbon, Lisbon, Portugal
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22
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Calé R, Ferreira F, Pereira AR, Saraiva C, Santos A, Alegria S, Repolho D, Vitorino S, Santos P, Morgado G, Brenot P, Loureiro MJ, Pereira H. Balloon pulmonary angioplasty protocol in a Portuguese pulmonary hypertension expert center. Rev Port Cardiol 2021. [PMID: 34366194 DOI: 10.1016/j.repc.2020.11.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
INTRODUCTION Balloon pulmonary angioplasty (BPA) has emerged as a promising therapeutic option for patients with chronic thromboembolic pulmonary hypertension (CTEPH) who are not eligible for pulmonary thromboendarterectomy (PEA) or who have recurrent or persistent pulmonary hypertension after surgery. There is no standardized technique for BPA and, its complexity and high risk of severe complications, requires skills and appropriate training and should be reserved for expert CTEPH centers, as a complementary intervention to medical and surgical therapy. OBJECTIVE The purpose of this document is to describe the BPA protocol used at a high-volume center nationwide, validated by its results. METHODS The present protocol includes technical details, definition of outcomes and complications, as well as patient full diagnostic work-up and treatment algorithm, before and after BPA. RESULTS The technical, hemodynamic, and clinical results of the application of this protocol will be subject of a later publication where they will be described in detail. In conclusion, we present a percutaneous intervention protocol in the treatment of pulmonary hypertension in the context of chronic pulmonary thromboembolism, validated by its clinical, hemodynamic, and technical results.
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Affiliation(s)
- Rita Calé
- Cardiology Department, Hospital Garcia de Orta, Almada, Portugal.
| | - Filipa Ferreira
- Cardiology Department, Hospital Garcia de Orta, Almada, Portugal
| | - Ana Rita Pereira
- Cardiology Department, Hospital Garcia de Orta, Almada, Portugal
| | - Carla Saraiva
- Radiology Department, Hospital de Santa Cruz, Centro Hospitalar de Lisboa Ocidental, Carnaxide, Portugal
| | - Ana Santos
- Radiology Department, Hospital de Santa Cruz, Centro Hospitalar de Lisboa Ocidental, Carnaxide, Portugal
| | - Sofia Alegria
- Cardiology Department, Hospital Garcia de Orta, Almada, Portugal
| | - Débora Repolho
- Cardiology Department, Hospital Garcia de Orta, Almada, Portugal
| | - Sílvia Vitorino
- Cardiology Department, Hospital Garcia de Orta, Almada, Portugal
| | - Pedro Santos
- Cardiology Department, Hospital Garcia de Orta, Almada, Portugal
| | - Gonçalo Morgado
- Cardiology Department, Hospital Garcia de Orta, Almada, Portugal
| | - Philippe Brenot
- Radiology Department, Hospital Marie Lannelongue, Le Plessis Robinson, France; Universidade Paris-Sud, Faculdade de Medicina, Universidade Paris-Saclay, Le Kremlin-Bicêtre, France
| | | | - Hélder Pereira
- Cardiology Department, Hospital Garcia de Orta, Almada, Portugal; CCUL, CAML, University of Lisbon, Lisbon, Portugal
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23
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Baldi BG, dos Santos Fernandes CJC, Heiden GI, Freitas CSG, Sobral JB, Kairalla RA, Carvalho CRR, Souza R. Association between pulmonary artery to aorta diameter ratio with pulmonary hypertension and outcomes in diffuse cystic lung diseases. Medicine (Baltimore) 2021; 100:e26483. [PMID: 34160461 PMCID: PMC8238321 DOI: 10.1097/md.0000000000026483] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 05/28/2021] [Indexed: 01/04/2023] Open
Abstract
To investigate the importance of pulmonary vascular measurements on computed tomography (CT) in predicting pulmonary hypertension (PH) and worse outcomes in diffuse cystic lung diseases (DCLDs).We conducted a cross-sectional study of patients with DCLDs. Patients underwent pulmonary function tests, a six-minute walk test (6MWT), chest CT, transthoracic echocardiography, and right heart catheterization. Pulmonary artery (PA) diameter and PA-ascending aorta ratio (PA-Ao ratio) were obtained from CT. Mean pulmonary artery pressure (mPAP) from right heart catheterization was correlated with tomographic, functional, and echocardiographic variables. The association between the PA-Ao ratio with outcomes was determined by Kaplan-Meier curves.Thirty-four patients were included (18 with pulmonary Langerhans cell histiocytosis and 16 with lymphangioleiomyomatosis, mean age 46 ± 9 years). Forced expiratory volume in the first second and lung diffusing capacity for carbon monoxide were 47 ± 20% and 38 ± 21% predicted, respectively. PA diameter and PA-Ao ratio were 29 ± 6 mm and 0.95 ± 0.24, respectively. PA-Ao ratio > 1 occurred in 38.2% of patients. PA-Ao ratio was a good predictor of PH. mPAP correlated best with PA-Ao ratio, PA diameter, oxygen desaturation during six-minute walk test, and echocardiographic variables. Patients with PA-Ao ratio > 1 had greater mPAP, and a higher risk of death or lung transplantation (log-rank, P < .001) than those with PA-Ao ratio ≤ 1.The PA-Ao ratio measured on CT scan has a potential role as a non-invasive tool to predict the presence of PH and as a prognostic parameter in patients with DCLDs.
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Affiliation(s)
| | | | | | | | - Juliana Barbosa Sobral
- Laboratório de Ecocardiografia, Instituto de Radiologia (InRad), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | | | | | - Rogério Souza
- Divisão de Pneumologia, Instituto do Coração (InCor)
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24
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Stam K, Clauss S, Taverne YJHJ, Merkus D. Chronic Thromboembolic Pulmonary Hypertension - What Have We Learned From Large Animal Models. Front Cardiovasc Med 2021; 8:574360. [PMID: 33937352 PMCID: PMC8085273 DOI: 10.3389/fcvm.2021.574360] [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: 06/19/2020] [Accepted: 03/08/2021] [Indexed: 12/21/2022] Open
Abstract
Chronic thrombo-embolic pulmonary hypertension (CTEPH) develops in a subset of patients after acute pulmonary embolism. In CTEPH, pulmonary vascular resistance, which is initially elevated due to the obstructions in the larger pulmonary arteries, is further increased by pulmonary microvascular remodeling. The increased afterload of the right ventricle (RV) leads to RV dilation and hypertrophy. This RV remodeling predisposes to arrhythmogenesis and RV failure. Yet, mechanisms involved in pulmonary microvascular remodeling, processes underlying the RV structural and functional adaptability in CTEPH as well as determinants of the susceptibility to arrhythmias such as atrial fibrillation in the context of CTEPH remain incompletely understood. Several large animal models with critical clinical features of human CTEPH and subsequent RV remodeling have relatively recently been developed in swine, sheep, and dogs. In this review we will discuss the current knowledge on the processes underlying development and progression of CTEPH, and on how animal models can help enlarge understanding of these processes.
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Affiliation(s)
- Kelly Stam
- Department of Cardiology, Erasmus University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Sebastian Clauss
- Department of Medicine I, University Hospital Munich, Ludwig-Maximilians University Munich, Munich, Germany.,Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital, LMU Munich, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Munich, Munich Heart Alliance, Munich, Germany
| | - Yannick J H J Taverne
- Department of Cardiothoracic Surgery, Erasmus University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Daphne Merkus
- Department of Cardiology, Erasmus University Medical Center Rotterdam, Rotterdam, Netherlands.,Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital, LMU Munich, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Munich, Munich Heart Alliance, Munich, Germany
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25
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Schattner A. Associated Pleural and Pericardial Effusions: An Extensive Differential Explored. Am J Med 2021; 134:435-443.e5. [PMID: 33181104 DOI: 10.1016/j.amjmed.2020.11.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 10/28/2020] [Accepted: 11/02/2020] [Indexed: 01/30/2023]
Abstract
Concurrent pleural and pericardial effusions are not an unusual finding, but their differential diagnosis remains uncertain. Medline-based review identified an extensive list of infectious, inflammatory, neoplastic, iatrogenic, and myriad other etiologies. A single retrospective study had addressed this presentation. Several principles of a diagnostic workup are suggested, acknowledging that a significant minority of patients may not require a comprehensive workup and remain 'idiopathic'.
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Affiliation(s)
- Ami Schattner
- The Faculty of Medicine, Hebrew University and Hadassah Medical School, Jerusalem, Israel.
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26
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Niznansky M, Kavan J, Zemankova P, Prskavec T, Ambroz D, Jansa P, Lindner J. Computed tomography angiographic parameters of pulmonary artery as prognostic factors of residual pulmonary hypertension after pulmonary endarterectomy. J Int Med Res 2021; 49:3000605211002024. [PMID: 33761801 PMCID: PMC8166393 DOI: 10.1177/03000605211002024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 02/19/2021] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVES This study aimed to retrospectively assess using computed tomography pulmonary angiography (CTPA) for predicting residual pulmonary hypertension (RPH) in patients with chronic thromboembolic pulmonary hypertension (CTEPH) after pulmonary endarterectomy (PEA). METHODS We retrospectively analyzed data of 131 patients with CTEPH who underwent PEA in our center (2008-2015). We measured several diameters of the pulmonary artery and thoracic aorta preoperatively. We evaluated the relationship between these measurements (and their indices) and signs of RPH represented by pulmonary artery systolic pressure (PASP) estimated by echocardiography. RESULTS Significant correlations were observed between the aortopulmonary index and prediction of any residual hypertension and moderate/severe hypertension 1 year after PEA, and any residual hypertension and severe hypertension 2 years after PEA. The aortopulmonary index was significantly related to a reduction in PASP 1 year after the operation. A lower aortopulmonary index (≤0.88 for the ascending aorta and ≤0.64 for the descending aorta) predicted lower RPH. CONCLUSIONS Preoperative CTPA parameters can be used to assess the risk of RPH after PEA. The aortopulmonary index has significant predictive value for RPH and a reduction in PASP after PEA. Lower values of the aortopulmonary index suggest a better outcome after PEA.
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Affiliation(s)
- Matus Niznansky
- Department of Cardiovascular Surgery, General University Hospital in Prague and First Faculty of Medicine, Charles University in Prague, Czech Republic
| | - Jan Kavan
- Department of Radiology, General University Hospital in Prague and First Faculty of Medicine, Charles University in Prague, Czech Republic
| | - Petra Zemankova
- Institute of Biochemistry and Experimental Oncology, First Faculty of Medicine, Charles University in Prague, Czech Republic
| | - Tomas Prskavec
- Department of Cardiovascular Surgery, General University Hospital in Prague and First Faculty of Medicine, Charles University in Prague, Czech Republic
| | - David Ambroz
- Department of Cardiology and Angiology, General University Hospital in Prague and First Faculty of Medicine, Charles University in Prague, Czech Republic
| | - Pavel Jansa
- Department of Cardiology and Angiology, General University Hospital in Prague and First Faculty of Medicine, Charles University in Prague, Czech Republic
| | - Jaroslav Lindner
- Department of Cardiovascular Surgery, General University Hospital in Prague and First Faculty of Medicine, Charles University in Prague, Czech Republic
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Tsukada J, Yamada Y, Kawakami T, Matsumoto S, Inoue M, Nakatsuka S, Okada M, Fukuda K, Jinzaki M. Treatment effect prediction using CT after balloon pulmonary angioplasty in chronic thromboembolic pulmonary hypertension. Eur Radiol 2021; 31:5524-5532. [PMID: 33569619 DOI: 10.1007/s00330-021-07711-5] [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: 08/17/2020] [Revised: 12/22/2020] [Accepted: 01/21/2021] [Indexed: 10/22/2022]
Abstract
OBJECTIVE To evaluate whether the change in computed tomography pulmonary angiography (CTPA) metrics after balloon pulmonary angioplasty (BPA) can predict treatment effect in chronic thromboembolic pulmonary hypertension (CTEPH) patients. METHODS This study included 82 CTEPH patients who underwent both CTPA and right heart catheterization (RHC) before and at the scheduled time of 6 months after BPA. The diameters of the main pulmonary artery (dPA), ascending aorta (dAA), right atrium (dRA), right ventricular free wall thickness (dRVW), and right and left ventricles (dRV, dLV) were measured on CTPA. The correlation of the New York Heart Association functional class (NYHA FC), 6-minute walking distance (6MWD), brain natriuretic peptide (BNP) level, and calculated CT metrics with a decrease in mean pulmonary artery pressure (ΔmPAP) using RHC (used as the reference for BPA effect) was investigated. Using multiple regression analysis, independent variables were also identified. RESULTS In univariate analysis, clinical indicators (NYHA FC, 6MWD, and BNP level) improved significantly after BPA and were significantly correlated with ΔmPAP (p < 0.01). In the univariate analysis of CTPA parameters, dPA, dRA, dPA/dAA ratio, dRVW, and dRV/dLV ratio decreased significantly and were significantly correlated with ΔmPAP (p < 0.01). Multivariate analysis demonstrated that decreased dPA (p = 0.001) and decreased dRA (p = 0.039) on CTPA were independent predictive factors of ΔmPAP. CONCLUSIONS Decreased dPA and dRA on CTPA could predict a decrease in mPAP after BPA, thus potentially eliminating unnecessary invasive catheterization. KEY POINTS • The reduction in mean pulmonary artery pressure after balloon pulmonary angioplasty in CTEPH patients was significantly correlated with the clinical indices improvement and CTPA parameter decrease. • The decreased diameter of the main pulmonary artery and the decreased diameter of the right atrium on CTPA were independent predictors of mean pulmonary artery pressure reduction.
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Affiliation(s)
- Jitsuro Tsukada
- Department of Radiology, Keio University School of Medicine, 35, Shinanomachi, Shinjyuku-ku, Tokyo, 160-8582, Japan.,Department of Radiology, Nihon University School of Medicine, 30-1, Oyaguchikamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Yoshitake Yamada
- Department of Radiology, Keio University School of Medicine, 35, Shinanomachi, Shinjyuku-ku, Tokyo, 160-8582, Japan.
| | - Takashi Kawakami
- Department of Cardiology, Keio University School of Medicine, 35, Shinanomachi, Shinjyuku-ku, Tokyo, 160-8582, Japan.
| | - Shunsuke Matsumoto
- Department of Radiology, Keio University School of Medicine, 35, Shinanomachi, Shinjyuku-ku, Tokyo, 160-8582, Japan
| | - Masanori Inoue
- Department of Radiology, Keio University School of Medicine, 35, Shinanomachi, Shinjyuku-ku, Tokyo, 160-8582, Japan
| | - Seishi Nakatsuka
- Department of Radiology, Keio University School of Medicine, 35, Shinanomachi, Shinjyuku-ku, Tokyo, 160-8582, Japan
| | - Masahiro Okada
- Department of Radiology, Nihon University School of Medicine, 30-1, Oyaguchikamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Keiichi Fukuda
- Department of Cardiology, Keio University School of Medicine, 35, Shinanomachi, Shinjyuku-ku, Tokyo, 160-8582, Japan
| | - Masahiro Jinzaki
- Department of Radiology, Keio University School of Medicine, 35, Shinanomachi, Shinjyuku-ku, Tokyo, 160-8582, Japan
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28
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McStay R, Johnstone A, Hare SS, Jacob J, Nair A, Rodrigues JCL, Edey A, Robinson G. COVID-19: looking beyond the peak. Challenges and tips for radiologists in follow-up of a novel patient cohort. Clin Radiol 2021; 76:74.e1-74.e14. [PMID: 33109350 PMCID: PMC7543687 DOI: 10.1016/j.crad.2020.09.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 09/16/2020] [Indexed: 12/21/2022]
Abstract
As the coronavirus pandemic evolves, the focus of radiology departments has begun to change. The acute phase of imaging a new disease entity whilst rationalising radiology services in the face of lockdown has passed. Radiologists are now becoming familiar with the complications of COVID-19, particularly the lung parenchymal and pulmonary vascular sequelae and are considering the impact follow-up imaging may have on departments already struggling with a backlog of suspended imaging in the face of reduced capacity. This review from the British Society of Thoracic Imaging explores both the thoracic and extra-thoracic complications of COVID-19, recognising the importance of a holistic approach to patient follow-up. The British Thoracic Society guidelines for respiratory follow-up of COVID-19 will be discussed, together with newly developed reporting templates, which aim to provide consistency for clinicians as well as an opportunity for longer-term data collection.
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Affiliation(s)
- R McStay
- Department of Radiology, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Freeman Road, Newcastle upon Tyne NE7 7DN, UK.
| | - A Johnstone
- Department of Radiology, Leeds Teaching Hospitals NHS Trust, Leeds General Infirmary, Great George Street, Leeds LS1 3EX, UK
| | - S S Hare
- Department of Radiology, Royal Free London NHS Trust, London, Pond Street, London NW3 2QJ, UK
| | - J Jacob
- Department of Respiratory Medicine, University College London, London NW1 2BU, UK; Centre for Medical Image Computing, University College London, London NW1 2BU, UK
| | - A Nair
- Department of Radiology, University College London Hospital, 235 Euston Road, London NW1 2BU, UK
| | - J C L Rodrigues
- Department of Radiology, Royal United Hospitals Bath NHS Foundation Trust, Combe Park, Bath BA1 3NG, UK
| | - A Edey
- Department of Radiology, Southmead Hospital, North Bristol NHS Trust, Southmead Road, Bristol BS10 5NB, UK
| | - G Robinson
- Department of Radiology, Royal United Hospitals Bath NHS Foundation Trust, Combe Park, Bath BA1 3NG, UK
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29
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Ikubo Y, Sanada TJ, Tanabe N, Naito A, Shoji H, Nagata J, Kuriyama A, Yanagisawa A, Kobayashi T, Yamamoto K, Kasai H, Suda R, Sekine A, Sugiura T, Shigeta A, Ishida K, Sakao S, Masuda M, Tatsumi K. The extent of enlarged bronchial arteries is not correlated with the development of reperfusion pulmonary edema after pulmonary endarterectomy in patients with chronic thromboembolic pulmonary hypertension. Pulm Circ 2020; 10:2045894020968677. [PMID: 33282195 PMCID: PMC7682219 DOI: 10.1177/2045894020968677] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 10/03/2020] [Indexed: 11/16/2022] Open
Abstract
This study investigated whether dilated bronchial arteries are associated with reperfusion pulmonary edema in patients with chronic thromboembolic pulmonary hypertension. Results showed that the extent of enlarged bronchial arteries was not associated with the development of reperfusion pulmonary edema, whereas the residual pulmonary hypertension had a significant association.
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Affiliation(s)
- Yumiko Ikubo
- Department of Respirology, Graduate School of Medicine, Chiba, Japan
| | - Takayuki J Sanada
- Department of Respirology, Graduate School of Medicine, Chiba, Japan.,Department of Pulmonology, Vrije Universiteit, Amsterdam, the Netherlands
| | - Nobuhiro Tanabe
- Department of Respirology, Graduate School of Medicine, Chiba, Japan.,Department of Respirology, Chibaken Saiseikai Narashino Hospital, Narashino, Japan
| | - Akira Naito
- Department of Respirology, Graduate School of Medicine, Chiba, Japan
| | - Hiroki Shoji
- Department of Respirology, Graduate School of Medicine, Chiba, Japan
| | - Jun Nagata
- Department of Respirology, Graduate School of Medicine, Chiba, Japan.,Department of Respirology, Chibaken Saiseikai Narashino Hospital, Narashino, Japan
| | - Ayaka Kuriyama
- Department of Respirology, Graduate School of Medicine, Chiba, Japan
| | - Asako Yanagisawa
- Department of Respirology, Graduate School of Medicine, Chiba, Japan
| | | | - Keiko Yamamoto
- Department of Respirology, Graduate School of Medicine, Chiba, Japan
| | - Hajime Kasai
- Department of Respirology, Graduate School of Medicine, Chiba, Japan
| | - Rika Suda
- Department of Respirology, Graduate School of Medicine, Chiba, Japan
| | - Ayumi Sekine
- Department of Respirology, Graduate School of Medicine, Chiba, Japan
| | - Toshihiko Sugiura
- Department of Respirology, Graduate School of Medicine, Chiba, Japan.,Department of Respirology, Chibaken Saiseikai Narashino Hospital, Narashino, Japan
| | - Ayako Shigeta
- Department of Respirology, Graduate School of Medicine, Chiba, Japan
| | - Keiichi Ishida
- Department of Cardiovascular Surgery, Chiba University, Chiba, Japan.,Department of Cardiovascular Surgery, Eastern Chiba Medical Center, Togane, Japan
| | - Seiichiro Sakao
- Department of Respirology, Graduate School of Medicine, Chiba, Japan
| | - Masahisa Masuda
- Department of Cardiovascular Surgery, Chiba University, Chiba, Japan.,Department of Cardiovascular Surgery, Eastern Chiba Medical Center, Togane, Japan
| | - Koichiro Tatsumi
- Department of Respirology, Graduate School of Medicine, Chiba, Japan
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30
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Wang B, Huang LT, Hsieh ML, Wang CK, Wang JN, Kan CD, Wu JM, Tsai YS. Diastolic and systolic right ventricular diameters for predicting pulmonary hypertension in children with congenital heart disease. Clin Imaging 2020; 70:67-73. [PMID: 33125987 DOI: 10.1016/j.clinimag.2020.10.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 09/24/2020] [Accepted: 10/14/2020] [Indexed: 11/25/2022]
Abstract
Prospective electrocardiography (ECG)-gated cardiac computed tomography angiography (CTA) is widely used for pediatric patients with congenital heart disease (CHD) due to the lower radiation dose compared with the ECG-gated technique. However, functional parameters acquired using ECG-gated cardiac CT to predict pulmonary hypertension (PH) in children with CHD have not yet been reported. This study aimed to investigate the potential of diastolic and systolic right ventricular diameters (RVD) on prospective ECG-gated cardiac CTA to predict PH in children with CHD. A total of 44 children with CHD were divided into two groups: CHD with PH (n = 22) and CHD without PH (n = 22). The association between ECG-gated CTA parameters and PH was evaluated by logistic regression. The receiver operating characteristic curve (ROC) was used to find the best cut-off point for the parameters measured by Youden's index. Patients with higher RVD-BSA [aOR (95% CI) diastolic: 2.76 (1.23-6.23); systolic: 6.15 (1.72-22.06)] had higher risk of PH after adjusting for age and patent ductus arteriosus. The area under the curve (AUC) of D-RVD-BSA was 0.907 and the AUC of S-RVD-BSA was 0.917. Logistic regression showed that patients with D-RVD-BSA over 6.86 or S-RVD-BSA over 5.87 had significantly higher risk of PH after adjustments (aOR = 23.52, 95% CI = 2.89-191.03; aOR = 31.14, 95% CI = 2.75-352.85). In conclusion, in children with CHD, measurements of diastolic or systolic BSA-modified RVDs on prospective ECG-gated CTA are non-invasive markers of PH. BSA-modified D-RVD of 6.86 or BSA-modified S-RVD of 5.87 may be used to identify PH in children with CHD.
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Affiliation(s)
- Bow Wang
- Departments of Diagnostic Radiology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Li-Ting Huang
- Departments of Diagnostic Radiology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Min-Ling Hsieh
- Departments of Pediatrics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chien-Kuo Wang
- Departments of Diagnostic Radiology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Jieh-Neng Wang
- Departments of Pediatrics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chung-Dann Kan
- Department of Surgery and Institute of Cardiovascular Research Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Jing-Ming Wu
- Departments of Pediatrics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Shan Tsai
- Departments of Diagnostic Radiology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
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31
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Ozer Gokaslan C, Onrat E, Gokaslan S. Evaluation of the CT imaging findings in the diagnosis of pulmonary hypertension due to chronic thromboembolism. CLINICAL RESPIRATORY JOURNAL 2019; 14:228-234. [PMID: 31797559 DOI: 10.1111/crj.13120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 09/25/2019] [Accepted: 11/27/2019] [Indexed: 01/09/2023]
Abstract
PURPOSE Chronic thromboembolic pulmonary hypertension (CTEPH) is the only pulmonary hypertension that can be treated surgically. Multidedector computerized tomography angiography (MDCTA) is considered as an important tool. In this study, the important CT findings of CTEPH and the vascular MDCTA findings of CTEPH were classified as central, peripheral, central and peripheral. The aim of this study was to investigate the relationship between these groups with parenchymal and hemodynamic findings. MATERIALS AND METHODS MDCTA examinations of 26 patients who had been diagnosed with CTEPH were retrospectively reviewed. Vascular, cardiac and parenchymal findings were examined in MDCTA. Patients were divided into three groups as peripheral, central and peripheral and central chronic thromboembolism. The relationship between these groups with demographic, vascular, parenchymal and hemodynamic findings was investigated. RESULTS The most common vascular finding was the wall filling defects attached to the lobar and/or segmental arterial walls, while the parenchymal finding was the fibrotic shrinkage. There were no statistically significant differences between the three groups compared to parenchymal findings which are mosaic pattern, brochiectasis, fibrotic changes and atelectasis, pulmonary artery diameter, right atrial diameter and RV/LV ratio. Age and sex were not different in patients between the three groups. CONCLUSION The results of the this study confirm the important role of MDCTA in the evaluation of vascular, cardiac and parenchymal findings in the patients with CTEPH and identifying patients that would most benefit from surgical treatment by visualization of the segmental and subsegmental branches of the pulmonary arteries.
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Affiliation(s)
- Cigdem Ozer Gokaslan
- Department of Radiology, Afyonkarahisar Health Sciences University, Faculty of Medicine, Afyon, Turkey
| | - Ersel Onrat
- Department of Cardiology, Afyonkarahisar Health Sciences University, Faculty of Medicine, Afyon, Turkey
| | - Serkan Gokaslan
- Department of Cardiology, Afyonkarahisar Health Sciences University, Faculty of Medicine, Afyon, Turkey
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32
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Elia D, Caminati A, Zompatori M, Cassandro R, Lonati C, Luisi F, Pelosi G, Provencher S, Harari S. Pulmonary hypertension and chronic lung disease: where are we headed? Eur Respir Rev 2019; 28:28/153/190065. [DOI: 10.1183/16000617.0065-2019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Accepted: 09/22/2019] [Indexed: 12/26/2022] Open
Abstract
Pulmonary hypertension related to chronic lung disease, mainly represented by COPD and idiopathic pulmonary fibrosis, is associated with a worse outcome when compared with patients only affected by parenchymal lung disease. At present, no therapies are available to reverse or slow down the pathological process of this condition and most of the clinical trials conducted to date have had no clinically significant impact. Nevertheless, the importance of chronic lung diseases is always more widely recognised and, along with its increasing incidence, associated pulmonary hypertension is also expected to be growing in frequency and as a health burden worldwide. Therefore, it is desirable to develop useful and reliable tools to obtain an early diagnosis and to monitor and follow-up this condition, while new insights in the therapeutic approach are explored.
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33
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Stam K, Cai Z, van der Velde N, van Duin R, Lam E, van der Velden J, Hirsch A, Duncker DJ, Merkus D. Cardiac remodelling in a swine model of chronic thromboembolic pulmonary hypertension: comparison of right vs. left ventricle. J Physiol 2019; 597:4465-4480. [PMID: 31194256 PMCID: PMC6852085 DOI: 10.1113/jp277896] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 06/07/2019] [Indexed: 12/11/2022] Open
Abstract
KEY POINTS Right ventricle (RV) function is the most important determinant of survival and quality of life in patients with chronic thromboembolic pulmonary hypertension (CTEPH). The changes in right and left ventricle gene expression that contribute to ventricular remodelling are incompletely investigated. RV remodelling in our CTEPH swine model is associated with increased expression of the genes involved in inflammation (TGFβ), oxidative stress (ROCK2, NOX1 and NOX4), and apoptosis (BCL2 and caspase-3). Alterations in ROCK2 expression correlated inversely with RV contractile reserve during exercise. Since ROCK2 has been shown to be involved in hypertrophy, oxidative stress, fibrosis and endothelial dysfunction, ROCK2 inhibition may present a viable therapeutic target in CTEPH. ABSTRACT Right ventricle (RV) function is the most important determinant of survival and quality of life in patients with chronic thromboembolic pulmonary hypertension (CTEPH). The present study investigated whether the increased cardiac afterload is associated with (i) cardiac remodelling and hypertrophic signalling; (ii) changes in angiogenic factors and capillary density; and (iii) inflammatory changes associated with oxidative stress and interstitial fibrosis. CTEPH was induced in eight chronically instrumented swine by chronic nitric oxide synthase inhibition and up to five weekly pulmonary embolizations. Nine healthy swine served as a control. After 9 weeks, RV function was assessed by single beat analysis of RV-pulmonary artery (PA) coupling at rest and during exercise, as well as by cardiac magnetic resonance imaging. Subsequently, the heart was excised and RV and left ventricle (LV) tissues were processed for molecular and histological analyses. Swine with CTEPH exhibited significant RV hypertrophy in response to the elevated PA pressure. RV-PA coupling was significantly reduced, correlated inversely with pulmonary vascular resistance and did not increase during exercise in CTEPH swine. Expression of genes associated with hypertrophy (BNP), inflammation (TGFβ), oxidative stress (ROCK2, NOX1 and NOX4), apoptosis (BCL2 and caspase-3) and angiogenesis (VEGFA) were increased in the RV of CTEPH swine and correlated inversely with RV-PA coupling during exercise. In the LV, only significant changes in ROCK2 gene-expression occurred. In conclusion, RV remodelling in our CTEPH swine model is associated with increased expression of genes involved in inflammation and oxidative stress, suggesting that these processes contribute to RV remodelling and dysfunction in CTEPH and hence represent potential therapeutic targets.
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Affiliation(s)
- Kelly Stam
- Department of Cardiology, Erasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
| | - Zongye Cai
- Department of Cardiology, Erasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
| | - Nikki van der Velde
- Department of Cardiology, Erasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
- Department of Radiology and Nuclear Medicine, Erasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
| | - Richard van Duin
- Department of Cardiology, Erasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
| | - Esther Lam
- Department of Cardiology, Erasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
| | - Jolanda van der Velden
- Amsterdam UMCVrije Universiteit Amsterdam, Physiology, Amsterdam Cardiovascular SciencesAmsterdamThe Netherlands
| | - Alexander Hirsch
- Department of Cardiology, Erasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
- Department of Radiology and Nuclear Medicine, Erasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
| | - Dirk J Duncker
- Department of Cardiology, Erasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
| | - Daphne Merkus
- Department of Cardiology, Erasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
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