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Kusner J, Krasuski RA. Pulmonary Hypertension in Adult Congenital Heart Disease-Related Heart Failure. Heart Fail Clin 2024; 20:209-221. [PMID: 38462325 DOI: 10.1016/j.hfc.2023.12.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Already a challenging condition to define, adult congenital heart disease (ACHD) -associated heart failure (HF) often incorporates specific anatomies, including intracardiac and extracardiac shunts, which require rigorous diagnostic characterization and heighten the importance of clinicians proactively considering overall hemodynamic impacts of using specific therapies. The presence of elevated pulmonary vascular resistance dramatically increases the complexity of managing patients with ACHD-HF. Total circulatory management in patients with ACHD-HF requires input from multidisciplinary care teams and thoughtful and careful utilization of medical, interventional, and surgical approaches.
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Affiliation(s)
- Jonathan Kusner
- Department of Medicine, Duke University Medical Center, 2301 Erwin Road, Durham, NC 27705, USA
| | - Richard A Krasuski
- Department of Cardiovascular Medicine, Duke University Medical Center, Box 3012, Durham, NC 27710, USA.
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2
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Gülcher OJ, Vis A, Peirlinck M, Kluin J. Balancing the ventricular outputs of pulsatile total artificial hearts. Artif Organs 2023; 47:1809-1817. [PMID: 37702086 DOI: 10.1111/aor.14641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/15/2023] [Accepted: 08/28/2023] [Indexed: 09/14/2023]
Abstract
BACKGROUND Maintaining balanced left and right cardiac outputs in a total artificial heart (TAH) is challenging due to the need for continuous adaptation to changing hemodynamic conditions. Proper balance in ventricular outputs of the left and right ventricles requires a preload-sensitive response and mechanisms to address the higher volumetric efficiency of the right ventricle. METHODS This review provides a comprehensive overview of various methods used to balance left and right ventricular outputs in pulsatile total artificial hearts, categorized based on their actuation mechanism. RESULTS Reported strategies include incorporating compliant materials and/or air cushions inside the ventricles, employing active control mechanisms to regulate ventricular filling state, and utilizing various shunts (such as hydraulic or intra-atrial shunts). Furthermore, reducing right ventricular stroke volume compared to the left often serves to balance the ventricular outputs. Individually controlled actuation of both ventricles in a pulsatile TAH seems to be the simplest and most effective way to achieve proper preload sensitivity and left-right output balance. Pneumatically actuated TAHs have the advantage to respond passively to preload changes. CONCLUSION Therefore, a pneumatic TAH that comprises two individually actuated ventricles appears to be a more desirable option-both in terms of simplicity and efficacy-to respond to changing hemodynamic conditions.
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Affiliation(s)
- Oskar J Gülcher
- Department of Cardiothoracic Surgery, Amsterdam University Medical Centers, Location University of Amsterdam, Amsterdam, The Netherlands
- Department of Biomechanical Engineering, Delft University of Technology, Delft, The Netherlands
| | - Annemijn Vis
- Department of Cardiothoracic Surgery, Amsterdam University Medical Centers, Location University of Amsterdam, Amsterdam, The Netherlands
| | - Mathias Peirlinck
- Department of Biomechanical Engineering, Delft University of Technology, Delft, The Netherlands
| | - Jolanda Kluin
- Department of Cardiothoracic Surgery, Amsterdam University Medical Centers, Location University of Amsterdam, Amsterdam, The Netherlands
- Department of Cardiothoracic Surgery, Thorax Center, Erasmus MC, Rotterdam, The Netherlands
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3
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Ishida K, Kohno H, Matsuura K, Watanabe M, Sugiura T, Jujo Sanada T, Naito A, Shigeta A, Suda R, Sekine A, Masuda M, Sakao S, Tanabe N, Tatsumi K, Matsumiya G. Modification of pulmonary endarterectomy to prevent neurologic adverse events. Surg Today 2023; 53:369-378. [PMID: 36018416 DOI: 10.1007/s00595-022-02573-w] [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: 04/08/2022] [Accepted: 07/16/2022] [Indexed: 10/15/2022]
Abstract
PURPOSE Neurologic adverse events (NAEs) are a major complication after pulmonary endarterectomy (PEA) performed under periods of deep hypothermic circulatory arrest (HCA) for chronic thromboembolic pulmonary hypertension. We modified the PEA strategy to prevent NAEs and evaluated the effectiveness of these modifications. METHODS We reviewed the surgical outcomes of 87 patients divided into the following three groups based on the surgical strategy used: group S (n = 49), periods of deep HCA with alpha-stat strategy; group M1 (n = 19), deep HCA with modifications of slower cooling and rewarming rates and the pH-stat strategy for cooling: and group M2 (n = 13), multiple short periods of moderate HCA. RESULTS PEA provided significant improvement of pulmonary hemodynamics in each group. Sixteen (29%) of the 49 group S patients suffered NAEs, associated with total circulatory arrest time (cutoff, 57 min) and Jamieson type I disease. The Group M1 and M2 patients did not suffer NAEs, although the group M1 patients had prolonged cardiopulmonary bypass (CPB) and more frequent respiratory failure. CONCLUSIONS NAEs were common after PEA performed under periods of deep HCA. The modified surgical strategy could decrease the risk of NAEs but increase the risk of respiratory failure. Multiple short periods of moderate HCA may be useful for patients at risk of NAEs.
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Affiliation(s)
- Keiichi Ishida
- Department of Cardiovascular Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan.
| | - Hiroki Kohno
- Department of Cardiovascular Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Kaoru Matsuura
- Department of Cardiovascular Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Michiko Watanabe
- Department of Cardiovascular Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Toshihiko Sugiura
- Department of Respirology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Takayuki Jujo Sanada
- Department of Respirology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Akira Naito
- Department of Respirology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Ayako Shigeta
- Department of Respirology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Rika Suda
- Department of Respirology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Ayumi Sekine
- Department of Respirology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Masahisa Masuda
- Department of Cardiovascular Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Seiichiro Sakao
- Department of Respirology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Nobuhiro Tanabe
- Department of Respirology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Koichiro Tatsumi
- Department of Respirology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Goro Matsumiya
- Department of Cardiovascular Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
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Vis A, Arfaee M, Khambati H, Slaughter MS, Gummert JF, Overvelde JTB, Kluin J. The ongoing quest for the first total artificial heart as destination therapy. Nat Rev Cardiol 2022; 19:813-828. [PMID: 35668176 DOI: 10.1038/s41569-022-00723-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/09/2022] [Indexed: 12/18/2022]
Abstract
Many patients with end-stage heart disease die because of the scarcity of donor hearts. A total artificial heart (TAH), an implantable machine that replaces the heart, has so far been successfully used in over 1,700 patients as a temporary life-saving technology for bridging to heart transplantation. However, after more than six decades of research on TAHs, a TAH that is suitable for destination therapy is not yet available. High complication rates, bulky devices, poor durability, poor biocompatibility and low patient quality of life are some of the major drawbacks of current TAH devices that must be addressed before TAHs can be used as a destination therapy. Quickly emerging innovations in battery technology, wireless energy transmission, biocompatible materials and soft robotics are providing a promising opportunity for TAH development and might help to solve the drawbacks of current TAHs. In this Review, we describe the milestones in the history of TAH research and reflect on lessons learned during TAH development. We summarize the differences in the working mechanisms of these devices, discuss the next generation of TAHs and highlight emerging technologies that will promote TAH development in the coming decade. Finally, we present current challenges and future perspectives for the field.
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Affiliation(s)
- Annemijn Vis
- Cardiothoracic Surgery, Amsterdam UMC location University of Amsterdam, Amsterdam, The Netherlands.,Heart Failure and Arrhythmias, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
| | - Maziar Arfaee
- Cardiothoracic Surgery, Amsterdam UMC location University of Amsterdam, Amsterdam, The Netherlands.,Heart Failure and Arrhythmias, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
| | - Husain Khambati
- Cardiothoracic Surgery, Amsterdam UMC location University of Amsterdam, Amsterdam, The Netherlands.,Heart Failure and Arrhythmias, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
| | - Mark S Slaughter
- Department of Cardiovascular and Thoracic Surgery, University of Louisville, Louisville, KY, USA
| | - Jan F Gummert
- Department of Thoracic and Cardiovascular Surgery, Heart and Diabetes Center NRW, Ruhr-University Bochum, Bad Oeynhausen, Germany
| | - Johannes T B Overvelde
- Autonomous Matter Department, AMOLF, Amsterdam, The Netherlands.,Institute for Complex Molecular Systems and Department of Mechanical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Jolanda Kluin
- Cardiothoracic Surgery, Amsterdam UMC location University of Amsterdam, Amsterdam, The Netherlands. .,Heart Failure and Arrhythmias, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands.
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Lee JH, Yoon CJ, Jung YS, Choi WS, Lee CH, Lee GM. Comparison of n-butyl-2-cyanoacrylate and polyvinyl alcohol particles for bronchial artery embolisation in primary lung cancer: a retrospective cohort study. Respir Res 2022; 23:257. [PMID: 36127690 PMCID: PMC9487124 DOI: 10.1186/s12931-022-02183-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 09/13/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Bronchial artery embolisation (BAE) is an effective treatment option to control haemoptysis in primary lung cancer. However, no studies have investigated optimal embolisation material for BAE in lung cancer patients. Thus, this study aimed to compare the safety and efficacy of BAE performed using n-butyl-2-cyanoacrylate (NBCA) and polyvinyl alcohol (PVA) particles in primary lung cancer patients to determine which embolic material is better for patients with haemoptysis. METHODS This retrospective study was approved by the institutional review board, and consent was waived. The rates of hemostasis, complications, procedure time, dose-area product, and haemoptysis-free survival were retrospectively compared between primary lung cancer (non-small cell [n = 111] and small cell [n = 11]) patients who underwent BAE using NBCA (n = 58) or PVA particles (n = 64) between January 2004 and December 2019. Predictors of recurrent haemoptysis were analysed using the Cox proportional hazard regression model. RESULTS Among 122 patients (mean age, 66 ± 10 years; range 32-86 years; 103 men), more patients in the NBCA group (81.0%; 47 of 58) achieved complete hemostasis than did patients in the PVA group (53.1%; 34 of 64) (P = 0.002). No major complications were observed in either group. The procedure time (36.4 ± 21.6 vs. 56.3 ± 27.4 min, P < 0.001) was shorter, and the dose-area product (58.6 ± 64.0 vs. 233.5 ± 225.0 Gy*cm2, P < 0.001) was smaller in the NBCA group than in the PVA group. The median haemoptysis-free survival was 173.0 in the NBCA group compared with 20.0 days in the PVA group (P < 0.001). The PVA use (P < 0.001) and coagulopathy (P = 0.014) were independent predictors of shortened haemoptysis-free survival. CONCLUSION BAE using NBCA showed significantly superior initial hemostasis with longer haemoptysis-free survival, shorter procedure time, and reduced radiation dose than BAE using PVA particles. The PVA use and coagulopathy were independent predictors of recurrent haemoptysis. TRIAL REGISTRATION Retrospectively registered.
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Affiliation(s)
- Jae Hwan Lee
- Department of Radiology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, 82, Gumi-ro 173beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 13620, South Korea.,Seoul National University Bundang Hospital, 82, Gumi-ro 173beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 13620, South Korea
| | - Chang Jin Yoon
- Department of Radiology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, 82, Gumi-ro 173beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 13620, South Korea. .,Seoul National University Bundang Hospital, 82, Gumi-ro 173beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 13620, South Korea.
| | - Yun Su Jung
- Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - Won Seok Choi
- Department of Radiology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, 82, Gumi-ro 173beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 13620, South Korea.,Seoul National University Bundang Hospital, 82, Gumi-ro 173beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 13620, South Korea
| | - Chong-Ho Lee
- Seoul National University Bundang Hospital, 82, Gumi-ro 173beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 13620, South Korea
| | - Guy Mok Lee
- Seoul National University Bundang Hospital, 82, Gumi-ro 173beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 13620, South Korea
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Valentin S, Maurac A, Mandry D, Selton-Suty C, Huttin O, Cherifi A, Guillaumot A, Gomez E, Chabot F, Chaouat A. Place de l’IRM cardiaque dans l’hypertension artérielle pulmonaire et l’hypertension pulmonaire thrombo-embolique chronique. Rev Mal Respir 2022; 39:486-497. [DOI: 10.1016/j.rmr.2022.03.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Accepted: 02/14/2022] [Indexed: 01/26/2023]
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Systemic-pulmonary collateral supply associated with clinical severity of chronic thromboembolic pulmonary hypertension: a study using intra-aortic computed tomography angiography. Eur Radiol 2022; 32:7668-7679. [PMID: 35420297 PMCID: PMC9668953 DOI: 10.1007/s00330-022-08768-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 03/11/2022] [Accepted: 03/23/2022] [Indexed: 01/03/2023]
Abstract
OBJECTIVES To assess whether systemic-pulmonary collaterals are associated with clinical severity and extent of pulmonary perfusion defects in chronic thromboembolic pulmonary hypertension (CTEPH). METHODS This prospective study was approved by a local ethics committee. Twenty-four patients diagnosed with inoperable CTEPH were enrolled between July 2014 and February 2017. Systemic-pulmonary collaterals were detected using pulmonary vascular enhancement on intra-aortic computed tomography (CT) angiography. The pulmonary enhancement parameters were calculated, including (1) Hounsfield unit differences (HUdiff) between pulmonary trunks and pulmonary arteries (PAs) or veins (PVs), namely HUdiff-PA and HUdiff-PV, on the segmental base; (2) the mean HUdiff-PA, mean HUdiff-PV, numbers of significantly enhanced PAs and PVs, on the patient base. Pulmonary perfusion defects were recorded and scored using the lung perfused blood volume (PBV) based on intravenous dual-energy CT (DECT) angiography. Pearson's or Spearman's correlation coefficients were used to evaluate correlations between the following: (1) segment-based intra-aortic CT and intravenous DECT parameters (2) patient-based intra-aortic CT parameters and clinical severity parameters or lung PBV scores. Statistical significance was set at p < 0.05. RESULTS Segmental HUdiff-PV was correlated with the segmental perfusion defect score (r = 0.45, p < 0.01). The mean HUdiff-PV was correlated with the mean pulmonary arterial pressure (PAP) (r = 0.52, p < 0.01), cardiac output (rho = - 0.41, p = 0.05), and lung PBV score (rho = 0.43, p = 0.04). And the number of significantly enhanced PVs was correlated with the mean PAP (r = 0.54, p < 0.01), pulmonary vascular resistance (r = 0.54, p < 0.01), and lung PBV score (rho = 0.50, p = 0.01). CONCLUSIONS PV enhancement measured by intra-aortic CT angiography reflects clinical severity and pulmonary perfusion defects in CTEPH. KEY POINTS • Intra-aortic CT angiography demonstrated heterogeneous enhancement within the pulmonary vasculature, showing collaterals from the systemic arteries to the pulmonary circulation in CTEPH. • The degree of systemic-pulmonary collateral development was significantly correlated with the clinical severity of CTEPH and may be used to evaluate disease progression. • The distribution of systemic-pulmonary collaterals is positively correlated with perfusion defects in the lung segments in CTEPH.
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Fang Y, Xiong Z, Wang Y, Li B, Wang Z, Kang D, An Q, Lin K, Luo S. Density of aortopulmonary collaterals predicts in-hospital outcome in tetralogy of Fallot with pulmonary stenosis. Interact Cardiovasc Thorac Surg 2021; 34:307-314. [PMID: 34542589 PMCID: PMC8766212 DOI: 10.1093/icvts/ivab238] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/20/2021] [Accepted: 08/02/2021] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES The aim of this study was to characterize the anatomy of aortopulmonary collateral (APC) arteries in tetralogy of Fallot and pulmonary stenosis and to determine whether APC density identified on preoperative multidetector cardiac computed tomography predicts in-hospital outcome. METHODS The retrospective single-centre study includes consecutive 135 (2015-2019) patients who underwent one-stage repair. Preoperative multidetector cardiac computed tomography, echocardiography and clinical outcomes were reviewed. The cut-off value of indexed total distal APC cross-sectional area (APC-CSA) was identified by receiver operating characteristic curve. Logistic regression was used for predictors analysis. RESULTS The median age and body weight were 19.7 (10.1-89.7) months and 10 (8.3-18) kg. A total of 337 APCs were detected with only one demonstrating severe stenosis. There was a strong and significant correlation between mean APC diameter per patient and age (r = 0.70, P < 0.001). APCs were imaged but mainly received no interventions. In-hospital mortality was similar between patients with high (indexed APC-CSA ≥3.0 mm2/m2) and low (<3.0 mm2/m2) APC density (P = 0.642). Significantly greater patients with high indexed APC-CSA experienced the in-hospital composite outcome of death, arrest, renal/hepatic injury, lactic acidosis or extracorporeal membrane oxygenation (P = 0.007). High APC density was associated with greater dosing (P = 0.008) and longer (P = 0.01) use of inotropic support, prolonged pleural drainage (P = 0.013), longer ventilation (P = 0.042), intensive care unit (P = 0.014) and hospital (P = 0.027) duration. No reintervention and death occurred in the follow-up with the median duration of 24.4 (11-36.6) months. Multivariable analysis showed the Nakata index (P = 0.05) and high APC density (P = 0.02) independently predicted the composite outcome. CONCLUSIONS In tetralogy of Fallot and pulmonary stenosis, APCs are likely to be dilated bronchial arteries. Preoperative multidetector cardiac computed tomography-derived APC density was as important as Nakata index in predicting the occurrence of in-hospital composite outcome. The APC-CSA of 3.0 mm2/m2 maybe considered as a threshold for risk stratification.
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Affiliation(s)
- Yibing Fang
- Department of Cardiovascular Surgery, West China Hospital of Sichuan University, Chengdu, China
| | - Ziqing Xiong
- Department of Cardiovascular Surgery, West China Hospital of Sichuan University, Chengdu, China
| | - Yue Wang
- Department of Cardiovascular Surgery, West China Hospital of Sichuan University, Chengdu, China
| | - Bo Li
- Department of Radiology, West China Hospital of Sichuan University, Chengdu, China
| | - Zetao Wang
- Department of Radiology, West China Hospital of Sichuan University, Chengdu, China
| | - Deying Kang
- Department of Evidence‐based Medicine and Clinical Epidemiology, West China Hospital of Sichuan University, Chengdu, China
| | - Qi An
- Department of Cardiovascular Surgery, West China Hospital of Sichuan University, Chengdu, China
| | - Ke Lin
- Department of Cardiovascular Surgery, West China Hospital of Sichuan University, Chengdu, China
| | - Shuhua Luo
- Corresponding author. Department of Cardiovascular Surgery, West China Hospital of Sichuan University, 37# Guoxue Xiang, Chengdu, Sichuan 610041, China. Tel: +86-18980606194; fax: +86-2885440220; e-mail: (S. Luo)
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Hayabuchi Y, Homma Y, Kagami S. Three-dimensional imaging of pulmonary arterial vasa vasorum using optical coherence tomography in patients after bidirectional Glenn and Fontan procedures. Eur Heart J Cardiovasc Imaging 2021; 22:941-949. [PMID: 32413104 DOI: 10.1093/ehjci/jeaa098] [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: 11/19/2019] [Revised: 01/31/2020] [Accepted: 04/16/2020] [Indexed: 11/13/2022] Open
Abstract
AIMS We evaluated pulmonary arterial (PA) vasa vasorum (VV) in Fontan candidate patients with a novel three-dimensional (3D) imaging technique using optical coherence tomography (OCT). METHODS AND RESULTS This prospective study assessed the development of adventitial VV in the distal PA of 10 patients with bidirectional Glenn circulation (BDG group, 1.6 ± 0.3 years) and Fontan circulation (Fontan group, 3.3 ± 0.3 years), and in 20 children with normal PA haemodynamics and morphology (Control group, 1.5 ± 0.3 years). We assessed the PA VV with two-dimensional (2D) cross-sectional, multi-planar reconstruction (MPR), and volume rendering (VR) imaging. VV development was evaluated by the VV area/volume ratio, defined as the VV area/volume divided by the adventitial area/volume. Compared to the control group, the observed VV number and diameter on 3D images of MPR and VR were significantly higher, and curved and torturous-shaped VV were more frequently observed in the BDG and Fontan groups (P < 0.001, all). The median VV volume ratio was significantly greater in the BDG than in the control group (3.38% vs. 0.61%; P < 0.001). Although the VV volume ratio decreased significantly after the Fontan procedure (2.64%, P = 0.005 vs. BDG), the ratio remained higher than in the control group (P < 0.001 vs. control). CONCLUSION 3D OCT imaging is a novel method that can be used to evaluate adventitial PA VV and may provide pathophysiological insight into the role of the PA VV in these patients.
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Affiliation(s)
- Yasunobu Hayabuchi
- Department of Pediatrics, Tokushima University, Kuramoto-cho-3, Tokushima 770-8503, Japan
| | - Yukako Homma
- Department of Pediatrics, Tokushima University, Kuramoto-cho-3, Tokushima 770-8503, Japan
| | - Shoji Kagami
- Department of Pediatrics, Tokushima University, Kuramoto-cho-3, Tokushima 770-8503, Japan
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10
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Delcroix M, Torbicki A, Gopalan D, Sitbon O, Klok FA, Lang I, Jenkins D, Kim NH, Humbert M, Jais X, Vonk Noordegraaf A, Pepke-Zaba J, Brénot P, Dorfmuller P, Fadel E, Ghofrani HA, Hoeper MM, Jansa P, Madani M, Matsubara H, Ogo T, Grünig E, D'Armini A, Galie N, Meyer B, Corkery P, Meszaros G, Mayer E, Simonneau G. ERS statement on chronic thromboembolic pulmonary hypertension. Eur Respir J 2021; 57:13993003.02828-2020. [PMID: 33334946 DOI: 10.1183/13993003.02828-2020] [Citation(s) in RCA: 285] [Impact Index Per Article: 95.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 11/05/2020] [Indexed: 12/25/2022]
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is a rare complication of acute pulmonary embolism, either symptomatic or not. The occlusion of proximal pulmonary arteries by fibrotic intravascular material, in combination with a secondary microvasculopathy of vessels <500 µm, leads to increased pulmonary vascular resistance and progressive right heart failure. The mechanism responsible for the transformation of red clots into fibrotic material remnants has not yet been elucidated. In patients with pulmonary hypertension, the diagnosis is suspected when a ventilation/perfusion lung scan shows mismatched perfusion defects, and confirmed by right heart catheterisation and vascular imaging. Today, in addition to lifelong anticoagulation, treatment modalities include surgery, angioplasty and medical treatment according to the localisation and characteristics of the lesions.This statement outlines a review of the literature and current practice concerning diagnosis and management of CTEPH. It covers the definitions, diagnosis, epidemiology, follow-up after acute pulmonary embolism, pathophysiology, treatment by pulmonary endarterectomy, balloon pulmonary angioplasty, drugs and their combination, rehabilitation and new lines of research in CTEPH.It represents the first collaboration of the European Respiratory Society, the International CTEPH Association and the European Reference Network-Lung in the pulmonary hypertension domain. The statement summarises current knowledge, but does not make formal recommendations for clinical practice.
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Affiliation(s)
- Marion Delcroix
- Clinical Dept of Respiratory Diseases, Pulmonary Hypertension Center, UZ Leuven, Leuven, Belgium .,BREATHE, Dept CHROMETA, KU Leuven, Leuven, Belgium.,Co-chair
| | - Adam Torbicki
- Dept of Pulmonary Circulation, Thrombo-embolic Diseases and Cardiology, Center of Postgraduate Medical Education, ECZ-Otwock, Otwock, Poland.,Section editors
| | - Deepa Gopalan
- Dept of Radiology, Imperial College Hospitals NHS Trusts, London, UK.,Section editors
| | - Olivier Sitbon
- Université Paris-Saclay; Inserm UMR_S 999, Service de Pneumologie, Hôpital Bicêtre (AP-HP), Le Kremlin-Bicêtre, France.,Section editors
| | - Frederikus A Klok
- Dept of Medicine - Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, The Netherlands.,Section editors
| | - Irene Lang
- Medical University of Vienna, Vienna, Austria.,Section editors
| | - David Jenkins
- Royal Papworth Hospital, Cambridge University Hospital, Cambridge, UK.,Section editors
| | - Nick H Kim
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of California San Diego, La Jolla, CA, USA.,Section editors
| | - Marc Humbert
- Université Paris-Saclay; Inserm UMR_S 999, Service de Pneumologie, Hôpital Bicêtre (AP-HP), Le Kremlin-Bicêtre, France.,Section editors
| | - Xavier Jais
- Université Paris-Saclay; Inserm UMR_S 999, Service de Pneumologie, Hôpital Bicêtre (AP-HP), Le Kremlin-Bicêtre, France.,Section editors
| | - Anton Vonk Noordegraaf
- Dept of Pulmonary Medicine, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands.,Section editors
| | - Joanna Pepke-Zaba
- Royal Papworth Hospital, Cambridge University Hospital, Cambridge, UK.,Section editors
| | - Philippe Brénot
- Marie Lannelongue Hospital, Paris-South University, Le Plessis Robinson, France
| | - Peter Dorfmuller
- University of Giessen and Marburg Lung Center, German Center of Lung Research (DZL), Giessen, Germany.,Dept of Medicine, Imperial College London, London, UK.,Dept of Pneumology, Kerckhoff-Clinic Bad Nauheim, Bad Nauheim, Germany
| | - Elie Fadel
- Hannover Medical School, Hannover, Germany
| | - Hossein-Ardeschir Ghofrani
- University of Giessen and Marburg Lung Center, German Center of Lung Research (DZL), Giessen, Germany.,Dept of Medicine, Imperial College London, London, UK.,Dept of Pneumology, Kerckhoff-Clinic Bad Nauheim, Bad Nauheim, Germany
| | | | - Pavel Jansa
- 2nd Department of Medicine, Dept of Cardiovascular Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Michael Madani
- Sulpizio Cardiovascular Centre, University of California, San Diego, CA, USA
| | - Hiromi Matsubara
- National Hospital Organization Okayama Medical Center, Okayama, Japan
| | - Takeshi Ogo
- National Cerebral and Cardiovascular Centre, Osaka, Japan
| | - Ekkehard Grünig
- Thoraxklinik Heidelberg at Heidelberg University Hospital, Heidelberg, Germany
| | - Andrea D'Armini
- Unit of Cardiac Surgery, Intrathoracic Transplantation and Pulmonary Hypertension, University of Pavia School of Medicine, Foundation I.R.C.C.S. Policlinico San Matteo, Pavia, Italy
| | | | - Bernhard Meyer
- Institute for Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
| | | | | | - Eckhard Mayer
- Dept of Thoracic Surgery, Kerckhoff Clinic Bad Nauheim, Bad Nauheim, Germany.,Equal contribution.,Co-chair
| | - Gérald Simonneau
- Université Paris-Saclay; Inserm UMR_S 999, Service de Pneumologie, Hôpital Bicêtre (AP-HP), Le Kremlin-Bicêtre, France.,Equal contribution.,Co-chair
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11
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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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12
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Sarioglu O, Capar AE, Yavuz MY, Belet U. Angiographic Findings and Outcomes of Bronchial Artery Embolization in Patients with Pulmonary Tuberculosis. Eurasian J Med 2020; 52:126-131. [PMID: 32612418 DOI: 10.5152/eurasianjmed.2020.19221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 09/24/2019] [Indexed: 11/22/2022] Open
Abstract
Objective We aimed to evaluate the angiographic findings and outcomes of bronchial artery embolization in tuberculosis patients and to compare them with those of non-tuberculosis patients. Materials and Methods Patients who underwent bronchial artery embolization in a single interventional radiology department with hemoptysis were reviewed. A total of 89 patients (66 males and 23 females; mean age 52.71±15.37) were incorporated in the study. The patients were divided into two groups: tuberculosis group (n=36) and non-tuberculosis group (16 malignancy, 22 bronchiectasis, 6 pulmonary infection, 5 chronic obstructive pulmonary disease, 4 idiopathic; n=53). Angiography and embolization procedure were performed by interventional radiologists with 5, 10, and 20 years of experience. Angiographic findings were classified as tortuosity, hypertrophy, hypervascularity, aneurysm, bronchopulmonary shunt, extravasation, and normal bronchial artery. Chi-square test was used to compare angiographic findings between tuberculosis and non-tuberculosis patient groups. Results Bronchopulmonary shunt was found to be significantly higher in the tuberculosis group as compared to that in the non-tuberculosis group (p=0.002). Neither of the groups showed a statistically significant difference with respect to recurrence (p=0.436). Conclusion Bronchial artery embolization is a useful and effective treatment method of hemoptysis in tuberculosis. Evaluation of bronchopulmonary shunts in patients with tuberculosis is critical for the reduction of catastrophic complications.
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Affiliation(s)
- Orkun Sarioglu
- Department of Radiology, Health Sciences University, Tepecik Educational and Research Hospital, Izmir, Turkey
| | - Ahmet Ergin Capar
- Department of Radiology, Health Sciences University, Tepecik Educational and Research Hospital, Izmir, Turkey
| | - Melike Yuksel Yavuz
- Department of Chest Diseases, Izmir Dr. Suat Seren Chest Diseases and Surgery Training and Research Hospital, Izmir, Turkey
| | - Umit Belet
- Department of Radiology, Health Sciences University, Tepecik Educational and Research Hospital, Izmir, Turkey
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13
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Gerges M, Yacoub M. Chronic thromboembolic pulmonary hypertension - still evolving. Glob Cardiol Sci Pract 2020; 2020:e202011. [PMID: 33150155 PMCID: PMC7590968 DOI: 10.21542/gcsp.2020.11] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is one of the leading causes of severe pulmonary hypertension (PH). The disease is still underdiagnosed, and the true prevalence is unknown. CTEPH is characterized by intraluminal non-resolving thrombus organization and fibrous stenosis, or complete obliteration of pulmonary arteries, promoted by progressive remodeling of the pulmonary vasculature. One consequence of this is an increase in pulmonary vascular resistance and pressure, resulting in PH and progressive right heart failure, leading to death if left untreated. Endovascular disobliteration by pulmonary endarterectomy (PEA) is the preferred treatment for CTEPH patients. PEA surgery is the only technique that can potentially cure CTEPH disease, especially in patients with fresh or organized thrombi of the proximal branches of pulmonary arteries. However, not all patients are eligible for PEA surgery. Recent research has provided evidence suggesting balloon pulmonary angioplasty (BPA) and targeted medical therapy as additional promising available treatments options for inoperable CTEPH and recurrent/persistent PH after PEA surgery. Studies on BPA have shown it to improve pulmonary hemodynamics, symptoms, exercise capacity and RV function in inoperable CTEPH. Subsequently, BPA has developed into an essential component of the modern era of CTEPH treatment. Large randomized controlled trials have demonstrated varying significant improvements with targeted medical therapy in technically inoperable CTEPH patients. Thus, treatment of CTEPH requires a comprehensive multidisciplinary assessment, including an experienced PEA surgeon, PH specialist, BPA interventionist and CTEPH-trained radiologist at expert centers. In this comprehensive review, we address the latest developments in the fast-evolving field of CTEPH. These include advancements in imaging modalities and developments in operative and interventional techniques, which have widened the range of patients who may benefit from these procedures. The efficacy and safety of targeted medical therapies in CTEPH patients are also discussed. As the treatment options for CTEPH improve, hybrid management involving multiple treatments in the same patient may become a viable option in the near future.
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Affiliation(s)
- Mario Gerges
- Department of Internal Medicine II, Division of Cardiology, General Hospital Vienna, Medical University of Vienna, Vienna, Austria
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14
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Leitman EM, McDermott S. Pulmonary arteries: imaging of pulmonary embolism and beyond. Cardiovasc Diagn Ther 2019; 9:S37-S58. [PMID: 31559153 DOI: 10.21037/cdt.2018.08.05] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The pulmonary arteries are not just affected by thrombus. Various acquired and congenital conditions can also affect the pulmonary arteries. In this review we discuss cross sectional imaging modalities utilized for the imaging of the pulmonary arteries. Acquired pulmonary artery entities, including pulmonary artery sarcoma (PAS), vasculitis, aneurysm, and arteriovenous malformations, and congenital anomalies in adults, including proximal interruption of the pulmonary artery, pulmonary sling, pulmonary artery stenosis, and idiopathic dilatation of the pulmonary trunk, are also discussed. An awareness of these entities and their imaging findings is important for radiologists interpreting chest imaging.
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Affiliation(s)
| | - Shaunagh McDermott
- Division of Thoracic Imaging and Intervention, Massachusetts General Hospital, Boston, Massachusetts, USA
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15
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Ashek A, Spruijt OA, Harms HJ, Lammertsma AA, Cupitt J, Dubois O, Wharton J, Dabral S, Pullamsetti SS, Huisman MC, Frings V, Boellaard R, de Man FS, Botros L, Jansen S, Vonk Noordegraaf A, Wilkins MR, Bogaard HJ, Zhao L. 3'-Deoxy-3'-[18F]Fluorothymidine Positron Emission Tomography Depicts Heterogeneous Proliferation Pathology in Idiopathic Pulmonary Arterial Hypertension Patient Lung. Circ Cardiovasc Imaging 2019; 11:e007402. [PMID: 30354494 DOI: 10.1161/circimaging.117.007402] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Pulmonary vascular cell hyperproliferation is characteristic of pulmonary vascular remodeling in pulmonary arterial hypertension. A noninvasive imaging biomarker is needed to track the pathology and assess the response to novel treatments targeted at resolving the structural changes. Here, we evaluated the application of radioligand 3'-deoxy-3'-[18F]-fluorothymidine (18FLT) using positron emission tomography. METHODS AND RESULTS We performed dynamic 18FLT positron emission tomography in 8 patients with idiopathic pulmonary arterial hypertension (IPAH) and applied in-depth kinetic analysis with a reversible 2-compartment 4k model. Our results show significantly increased lung 18FLT phosphorylation (k3) in patients with IPAH compared with nonpulmonary arterial hypertension controls (0.086±0.034 versus 0.054±0.009 min-1; P<0.05). There was heterogeneity in the lung 18FLT signal both between patients with IPAH and within the lungs of each patient, compatible with histopathologic reports of lungs from patients with IPAH. Consistent with 18FLT positron emission tomographic data, TK1 (thymidine kinase 1) expression was evident in the remodeled vessels in IPAH patient lung. In addition, hyperproliferative pulmonary vascular fibroblasts isolated from patients with IPAH exhibited upregulated expression of TK1 and the thymidine transporter, ENT1 (equilibrative nucleoside transporter 1). In the monocrotaline and SuHx (Sugen hypoxia) rat pulmonary arterial hypertension models, increased lung 18FLT uptake was strongly associated with peripheral pulmonary vascular muscularization and the proliferation marker, Ki-67 score, together with prominent TK1 expression in remodeled vessels. Importantly, lung 18FLT uptake was attenuated by 2 antiproliferative treatments: dichloroacetate and the tyrosine kinase inhibitor, imatinib. CONCLUSIONS Dynamic 18FLT positron emission tomography imaging can be used to report hyperproliferation in pulmonary hypertension and merits further study to evaluate response to treatment in patients with IPAH.
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Affiliation(s)
- Ali Ashek
- Center for Pharmacology and Therapeutics, Experimental Medicine, Hammersmith Hospital, Imperial College London, United Kingdom (A.A., J.C., O.D., J.W., M.R.W., L.Z.)
| | - Onno A Spruijt
- Department of Pulmonary Medicine (O.A.S., H.J.H., F.S.d.M., L.B., S.J., A.V.N., H.J.B.)
| | - Hendrik J Harms
- Department of Pulmonary Medicine (O.A.S., H.J.H., F.S.d.M., L.B., S.J., A.V.N., H.J.B.)
| | - Adriaan A Lammertsma
- Department of Radiology and Nuclear Medicine (A.A.L., M.C.H., V.F., R.B., F.S.d.M.), VU University Medical Center, Amsterdam, the Netherlands
| | - John Cupitt
- Center for Pharmacology and Therapeutics, Experimental Medicine, Hammersmith Hospital, Imperial College London, United Kingdom (A.A., J.C., O.D., J.W., M.R.W., L.Z.)
| | - Olivier Dubois
- Center for Pharmacology and Therapeutics, Experimental Medicine, Hammersmith Hospital, Imperial College London, United Kingdom (A.A., J.C., O.D., J.W., M.R.W., L.Z.)
| | - John Wharton
- Center for Pharmacology and Therapeutics, Experimental Medicine, Hammersmith Hospital, Imperial College London, United Kingdom (A.A., J.C., O.D., J.W., M.R.W., L.Z.)
| | - Swati Dabral
- Max-Planck Institute for Heart and Lung Research, University of Giessen and Marburg Lung Center, German Center for Lung Research, Bad Nauheim (S.D., S.S.P.)
| | - Soni Savai Pullamsetti
- Max-Planck Institute for Heart and Lung Research, University of Giessen and Marburg Lung Center, German Center for Lung Research, Bad Nauheim (S.D., S.S.P.)
| | - Marc C Huisman
- Department of Radiology and Nuclear Medicine (A.A.L., M.C.H., V.F., R.B., F.S.d.M.), VU University Medical Center, Amsterdam, the Netherlands
| | - Virginie Frings
- Department of Radiology and Nuclear Medicine (A.A.L., M.C.H., V.F., R.B., F.S.d.M.), VU University Medical Center, Amsterdam, the Netherlands
| | - Ronald Boellaard
- Department of Radiology and Nuclear Medicine (A.A.L., M.C.H., V.F., R.B., F.S.d.M.), VU University Medical Center, Amsterdam, the Netherlands
| | - Frances S de Man
- Department of Pulmonary Medicine (O.A.S., H.J.H., F.S.d.M., L.B., S.J., A.V.N., H.J.B.).,Department of Radiology and Nuclear Medicine (A.A.L., M.C.H., V.F., R.B., F.S.d.M.), VU University Medical Center, Amsterdam, the Netherlands
| | - Lisa Botros
- Department of Pulmonary Medicine (O.A.S., H.J.H., F.S.d.M., L.B., S.J., A.V.N., H.J.B.)
| | - Samara Jansen
- Department of Pulmonary Medicine (O.A.S., H.J.H., F.S.d.M., L.B., S.J., A.V.N., H.J.B.)
| | | | - Martin R Wilkins
- Center for Pharmacology and Therapeutics, Experimental Medicine, Hammersmith Hospital, Imperial College London, United Kingdom (A.A., J.C., O.D., J.W., M.R.W., L.Z.)
| | - Harm J Bogaard
- Department of Pulmonary Medicine (O.A.S., H.J.H., F.S.d.M., L.B., S.J., A.V.N., H.J.B.)
| | - Lan Zhao
- Center for Pharmacology and Therapeutics, Experimental Medicine, Hammersmith Hospital, Imperial College London, United Kingdom (A.A., J.C., O.D., J.W., M.R.W., L.Z.)
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16
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Sanada TJ, Tanabe N, Ishibashi-Ueda H, Ishida K, Naito A, Sakao S, Suda R, Kasai H, Nishimura R, Sugiura T, Shigeta A, Taniguchi Y, Masuda M, Tatsumi K. Involvement of pulmonary arteriopathy in the development and severity of reperfusion pulmonary edema after pulmonary endarterectomy. Pulm Circ 2019; 9:2045894019846439. [PMID: 30957648 PMCID: PMC6540513 DOI: 10.1177/2045894019846439] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Reperfusion pulmonary edema (RPE) is a common complication after pulmonary
endarterectomy (PEA) in patients with chronic thromboembolic pulmonary
hypertension (CTEPH). However, the precise mechanisms underlying the development
of RPE remain unclear. To evaluate the effects of pulmonary vasculopathy on RPE,
the severity of the pulmonary arteriopathies and venopathies of lung tissues
biopsied during PEA were pathologically quantified in 33 CTEPH patients. The
severity of RPE was classified from grade 0 (no RPE) to 4 (death due to RPE)
based on the arterial oxygen tension/inspiratory oxygen fraction (P/F ratio) and
necessity of respiratory management. Among the 33 patients (27 women; mean
age = 63.3 years), 17 (51.5%) patients developed RPE. The severity of pulmonary
arteriopathy (obstruction ratio) correlated with the grade of RPE (r = 0.576,
P = 0.0005). The obstruction ratio also correlated with the
P/F ratio (r = −0.543, P = 0.001) and the perioperative mean
pulmonary arterial pressure (r = 0.445, P = 0.009).
Multivariate logistic regression analysis revealed that the obstruction ratio
was a significant independent determinant for the development of RPE (odds
ratio = 15.7; 95% confidence interval = 2.29–108.00,
P = 0.005). In conclusion, pulmonary arteriopathy could be a
determinant of the development and severity of RPE after PEA.
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Affiliation(s)
- Takayuki Jujo Sanada
- 1 Department of Respirology (B2), Graduate School of Medicine, Chiba University, Chiba, Japan.,2 Department of Advanced Medicine in Pulmonary Hypertension, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Nobuhiro Tanabe
- 1 Department of Respirology (B2), Graduate School of Medicine, Chiba University, Chiba, Japan.,2 Department of Advanced Medicine in Pulmonary Hypertension, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Hatsue Ishibashi-Ueda
- 3 Department of Pathology, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Keiichi Ishida
- 4 Department of Cardiovascular Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Akira Naito
- 1 Department of Respirology (B2), Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Seiichiro Sakao
- 1 Department of Respirology (B2), Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Rika Suda
- 1 Department of Respirology (B2), Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Hajime Kasai
- 1 Department of Respirology (B2), Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Rintaro Nishimura
- 1 Department of Respirology (B2), Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Toshihiko Sugiura
- 1 Department of Respirology (B2), Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Ayako Shigeta
- 1 Department of Respirology (B2), Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Yu Taniguchi
- 1 Department of Respirology (B2), Graduate School of Medicine, Chiba University, Chiba, Japan.,5 Division of Cardiovascular Medicine, Kobe University Graduate School of Medicine, Chuo-Ku, Kobe, Japan
| | - Masahisa Masuda
- 4 Department of Cardiovascular Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Koichiro Tatsumi
- 1 Department of Respirology (B2), Graduate School of Medicine, Chiba University, Chiba, Japan
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17
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McKleroy W, Lyn-Kew K. 500 Million Alveoli from 30,000 Feet: A Brief Primer on Lung Anatomy. Methods Mol Biol 2019; 1809:3-15. [PMID: 29987778 DOI: 10.1007/978-1-4939-8570-8_1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
The lungs are a complex organ that fulfill multiple life-sustaining roles including transfer of oxygen and carbon dioxide between the ambient environment and the bloodstream, host defense, and immune homeostasis. As in any biological system, an understanding of the underlying anatomy is prerequisite for successful experimental design and appropriate interpretation of data, regardless of the precise experimental model or procedure in use. This chapter provides an overview of human lung anatomy focused on the airways, the ultrastructure or parenchyma of the lung, the pulmonary vasculature, the innervation of the lungs, and the pulmonary lymphatic system. We will also discuss notable anatomic differences between mouse and human lungs.
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Affiliation(s)
- William McKleroy
- Division of Pulmonary, Critical Care, and Sleep Medicine, National Jewish Health, Denver, CO, USA.,Department of Internal Medicine, University of Colorado School of Medicine, Aurora, CO, USA
| | - Kenneth Lyn-Kew
- Division of Pulmonary, Critical Care, and Sleep Medicine, National Jewish Health, Denver, CO, USA.
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18
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Marini TJ, He K, Hobbs SK, Kaproth-Joslin K. Pictorial review of the pulmonary vasculature: from arteries to veins. Insights Imaging 2018; 9:971-987. [PMID: 30382495 PMCID: PMC6269336 DOI: 10.1007/s13244-018-0659-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 08/14/2018] [Accepted: 09/12/2018] [Indexed: 01/27/2023] Open
Abstract
Pathology of the pulmonary vasculature involves an impressive array of both congenital and acquired conditions. While some of these disorders are benign, disruption of the pulmonary vasculature is often incompatible with life, making these conditions critical to identify on imaging. Many reviews of pulmonary vascular pathology approach the pulmonary arteries, pulmonary veins and bronchial arteries as individual topics. The goal of this review is to provide an integrated overview of the high-yield features of all major disorders of the pulmonary vasculature. This approach provides a more cohesive and comprehensive conceptualisation of respiratory pathology. In this review, we present both the salient clinical and imaging features of congenital and acquired disorders of the pulmonary vasculature, to assist the radiologist in identifying pathology and forming a robust differential diagnosis tailored to the presenting patient. TEACHING POINTS: • Abnormalities of the pulmonary vasculature are both congenital and acquired. • Pathology of a single pulmonary vascular territory often affects the entire pulmonary vasculature. • Anomalous pulmonary venous flow is named as a function of its location and severity. • Bronchial arteries often undergo dilatation secondary to cardio-respiratory pathology.
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Affiliation(s)
- Thomas J Marini
- Department of Imaging Sciences, University of Rochester, Rochester, NY, USA.
| | - Kevin He
- Department of Imaging Sciences, University of Rochester, Rochester, NY, USA
| | - Susan K Hobbs
- Department of Imaging Sciences, University of Rochester, Rochester, NY, USA
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19
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Monroe EJ, Pierce DB, Ingraham CR, Johnson GE, Shivaram GM, Valji K. An Interventionalist's Guide to Hemoptysis in Cystic Fibrosis. Radiographics 2018. [PMID: 29528824 DOI: 10.1148/rg.2018170122] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Massive hemoptysis occurs in a minority of patients with cystic fibrosis, with an annual incidence of 1%. Although rare, massive hemoptysis can be a severe and potentially fatal complication of this disease. Beyond the acute life-threatening event, hemoptysis in patients with cystic fibrosis has been associated with faster decline in lung function, accelerated need for lung transplant, and increased mortality. The bronchial arteries are the culprit vessels in over 90% of cases of hemoptysis. This normally quiescent vascular system undergoes remarkable hypertrophy, collateralization, and angiogenesis before the onset of hemoptysis, introducing numerous pitfalls for the interventionalist. However, in experienced hands, bronchial artery embolization is a safe and potentially lifesaving therapy. Preprocedural noninvasive imaging, specifically computed tomographic angiography, has been repeatedly validated for helping to localize the likely site of bleeding, characterizing pertinent arterial anatomy, and promoting efficient and effective intervention; it has been recommended for all stable patients with hemoptysis. Success in the angiographic suite requires a thorough understanding of normal and variant bronchial arterial anatomy, appropriate patient selection, and a meticulous embolization technique. A meticulous approach to imaging and intervention, conscientious of both visualized and nonvisualized collateral pathways and nontarget vessels, can minimize potentially devastating complications. This review summarizes the current literature, modern procedural techniques, and emerging controversies, serving to guide an evolving approach to management of patients with cystic fibrosis and hemoptysis. ©RSNA, 2018.
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Affiliation(s)
- Eric J Monroe
- From the Department of Radiology, University of Washington, Seattle, Wash (E.J.M., D.B.P., C.R.I., G.E.J., G.M.S., K.V.); and Department of Radiology, Seattle Children's Hospital, 4800 Sand Point Way NE, MA.7.220-Radiology, Seattle, WA 98105 (E.J.M., G.M.S.)
| | - David B Pierce
- From the Department of Radiology, University of Washington, Seattle, Wash (E.J.M., D.B.P., C.R.I., G.E.J., G.M.S., K.V.); and Department of Radiology, Seattle Children's Hospital, 4800 Sand Point Way NE, MA.7.220-Radiology, Seattle, WA 98105 (E.J.M., G.M.S.)
| | - Christopher R Ingraham
- From the Department of Radiology, University of Washington, Seattle, Wash (E.J.M., D.B.P., C.R.I., G.E.J., G.M.S., K.V.); and Department of Radiology, Seattle Children's Hospital, 4800 Sand Point Way NE, MA.7.220-Radiology, Seattle, WA 98105 (E.J.M., G.M.S.)
| | - Guy E Johnson
- From the Department of Radiology, University of Washington, Seattle, Wash (E.J.M., D.B.P., C.R.I., G.E.J., G.M.S., K.V.); and Department of Radiology, Seattle Children's Hospital, 4800 Sand Point Way NE, MA.7.220-Radiology, Seattle, WA 98105 (E.J.M., G.M.S.)
| | - Giridhar M Shivaram
- From the Department of Radiology, University of Washington, Seattle, Wash (E.J.M., D.B.P., C.R.I., G.E.J., G.M.S., K.V.); and Department of Radiology, Seattle Children's Hospital, 4800 Sand Point Way NE, MA.7.220-Radiology, Seattle, WA 98105 (E.J.M., G.M.S.)
| | - Karim Valji
- From the Department of Radiology, University of Washington, Seattle, Wash (E.J.M., D.B.P., C.R.I., G.E.J., G.M.S., K.V.); and Department of Radiology, Seattle Children's Hospital, 4800 Sand Point Way NE, MA.7.220-Radiology, Seattle, WA 98105 (E.J.M., G.M.S.)
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Grosse A, Grosse C, Lang I. Evaluation of the CT imaging findings in patients newly diagnosed with chronic thromboembolic pulmonary hypertension. PLoS One 2018; 13:e0201468. [PMID: 30059549 PMCID: PMC6066236 DOI: 10.1371/journal.pone.0201468] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 07/16/2018] [Indexed: 01/10/2023] Open
Abstract
PURPOSE The aim of this study was to evaluate the vascular and parenchymal CT imaging findings, including vessel and cardiac chamber diameter measurements, in patients newly diagnosed with chronic thromboembolic pulmonary hypertension (CTEPH). The CT imaging findings were correlated with hemodynamic measurements and patient outcome. METHODS Vascular and parenchymal CT findings were assessed on retrospectively ECG-gated MDCT angiography scans in 76 patients newly diagnosed with CTEPH. The diameters of the right and left ventricle (dRV, dLV), the right and left atrium (dRA, dLA), the ascending aorta (dAA), the right and left pulmonary arteries (drPA, dlPA), and the main pulmonary artery (dPA) were measured on axial CT scans. The CT imaging findings were correlated with demographic and hemodynamic data and adverse patient outcome due to right heart failure (RHF). RESULTS The majority of patients showed chronic PE, mosaic perfusion, disparity in segmental vessel size, parenchymal densities, bronchial dilatation, and bronchial collaterals in CT. Mean pulmonary artery pressure (mPAP) was not significantly different in patients with and those without chronic PE, mosaic perfusion, disparity in segmental vessel size, parenchymal densities, bronchial dilatation, and bronchial collaterals. Mean PAP showed significant correlations with the CT metrics of dRV/dLV ratio, dRA, dRV, dPA and dPA/dAA ratio, but no correlation with the central thrombi score. By backward linear regression, the dPA/dAA ratio independently correlated with mPAP. Patients who died of RHF tended to have a higher frequency of exclusively chronic peripheral PE and greater dRV/dLV ratios on presenting CT scans compared with survivors. CONCLUSION The majority of patients newly diagnosed with CTEPH show vascular signs of chronic PE, mosaic perfusion, parenchymal densities, disparity in segmental vessel size, bronchial dilatation, and bronchial collaterals on presenting CT scans. Particularly CTEPH patients with exclusively chronic peripheral PE and increased dRV/dLV ratios seem to be at risk of adverse outcome due to RHF.
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Affiliation(s)
- Alexandra Grosse
- Department of Radiology, Medical University of Vienna, Vienna, Austria
| | - Claudia Grosse
- Department of Radiology, Medical University of Vienna, Vienna, Austria
- * E-mail:
| | - Irene Lang
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, Vienna, Austria
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Balloon Pulmonary Angioplasty for Chronic Thromboembolic Pulmonary Hypertension. Cardiovasc Intervent Radiol 2018; 41:1826-1839. [DOI: 10.1007/s00270-018-2012-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 06/14/2018] [Indexed: 12/31/2022]
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Taniguchi Y, Brenot P, Jais X, Garcia C, Weatherald J, Planche O, Fadel E, Humbert M, Simonneau G. Poor Subpleural Perfusion Predicts Failure After Balloon Pulmonary Angioplasty for Nonoperable Chronic Thromboembolic Pulmonary Hypertension. Chest 2018; 154:521-531. [PMID: 29730328 DOI: 10.1016/j.chest.2018.03.059] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 01/24/2018] [Accepted: 03/30/2018] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Poor subpleural perfusion (PSP) in the capillary phase of pulmonary angiography predicts worse outcomes following pulmonary endarterectomy in operable chronic thromboembolic pulmonary hypertension (CTEPH). Balloon pulmonary angioplasty (BPA) has emerged as a treatment for nonoperable CTEPH. The goal of the present article was to assess the association between PSP and BPA failure. METHODS Subpleural perfusion was classified as poor (defined as subpleural spaces either not perfused or minimally perfused in all segments) or normal. We retrospectively reviewed PSP and hemodynamic variables of 101 consecutive patients who underwent BPA from February 2014 to August 2016. The total cross-sectional area of bronchial arteries was also measured by using CT scanning. Patients were categorized according to hemodynamic results after the last BPA: a failure group (defined as mean pulmonary arterial pressure > 30 mm Hg and a decrease in pulmonary vascular resistance < 30% [n = 15]) or a success group (n = 86). RESULTS Although baseline hemodynamic variables were similar between the two groups, PSP was observed in 46.7% of patients in the failure group vs 13.9% in the success group (P = .003). Multivariate analysis revealed that PSP was the only predictor of BPA failure (OR, 4.02 [95% CI, 1.17-13.89]; P = .028). Patients with PSP exhibited poorly developed bronchial arteries compared with patients with normal perfusion (7.0 [5.8-9.6] mm2 vs 8.7 [6.9-11.3] mm2; P = .032). CONCLUSIONS PSP in the capillary phase, suggesting the presence of small vessel disease with diffuse distal thrombosis, is a predictor of BPA failure. PSP was also associated with less developed bronchial arteries, which suggests a key role of bronchial-pulmonary anastomoses in maintaining the pulmonary capillary bed open downstream of the pulmonary arterial obstruction. PSP affected approximately 15% of patients with nonoperable CTEPH who underwent BPA.
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Affiliation(s)
- Yu Taniguchi
- Université Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France; AP-HP, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin-Bicêtre, France; Inserm UMR_S 999, Hôpital Marie Lannelongue, Le Plessis Robinson, France
| | - Philippe Brenot
- Inserm UMR_S 999, Hôpital Marie Lannelongue, Le Plessis Robinson, France; Service de Radiologie, Hôpital Marie Lannelongue, Le Plessis Robinson, France
| | - Xavier Jais
- Université Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France; AP-HP, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin-Bicêtre, France; Inserm UMR_S 999, Hôpital Marie Lannelongue, Le Plessis Robinson, France
| | - Carlos Garcia
- Inserm UMR_S 999, Hôpital Marie Lannelongue, Le Plessis Robinson, France; Service de Radiologie, Hôpital Marie Lannelongue, Le Plessis Robinson, France
| | - Jason Weatherald
- Université Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France; AP-HP, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin-Bicêtre, France; Department of Medicine, Division of Respirology, University of Calgary, Calgary, AB, Canada; Libin Cardiovascular Institute of Alberta, Calgary, AB, Canada
| | - Olivier Planche
- Université Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France; Inserm UMR_S 999, Hôpital Marie Lannelongue, Le Plessis Robinson, France; AP-HP, Service de Radiologie, Hôpital Bicêtre, Le Kremlin-Bicêtre, France
| | - Elie Fadel
- Université Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France; Inserm UMR_S 999, Hôpital Marie Lannelongue, Le Plessis Robinson, France; Service de Chirurgie Thoracique, Hôpital Marie Lannelongue, Le Plessis Robinson, France
| | - Marc Humbert
- Université Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France; AP-HP, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin-Bicêtre, France; Inserm UMR_S 999, Hôpital Marie Lannelongue, Le Plessis Robinson, France
| | - Gérald Simonneau
- Université Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France; AP-HP, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin-Bicêtre, France; Inserm UMR_S 999, Hôpital Marie Lannelongue, Le Plessis Robinson, France.
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Pitfalls in the Diagnosis of Acute Pulmonary Embolism on Computed Tomography: Common Pathologic and Imaging Mimics. CURRENT RADIOLOGY REPORTS 2018. [DOI: 10.1007/s40134-018-0273-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Abstract
Pulmonary hypertension is defined by a mean pulmonary artery pressure greater than 25 mm Hg. Chronic thromboembolic pulmonary hypertension (CTEPH) is defined as pulmonary hypertension in the presence of an organized thrombus within the pulmonary vascular bed that persists at least 3 months after the onset of anticoagulant therapy. Because CTEPH is potentially curable by surgical endarterectomy, correct identification of patients with this form of pulmonary hypertension and an accurate assessment of surgical candidacy are essential to provide optimal care. Patients most commonly present with symptoms of exertional dyspnea and otherwise unexplained decline in exercise capacity. Atypical chest pain, a nonproductive cough, and episodic hemoptysis are observed less frequently. With more advanced disease, patients often develop symptoms suggestive of right ventricular compromise. Physical examination findings are minimal early in the course of this disease, but as pulmonary hypertension progresses, may include nonspecific finding of right ventricular failure, such as a tricuspid regurgitation murmur, pedal edema, and jugular venous distention. Chest radiographs may suggest pulmonary hypertension, but are neither sensitive nor specific for the diagnosis. Radioisotopic ventilation-perfusion scanning is sensitive for detecting CTEPH, making it a valuable screening study. Conventional catheter-based pulmonary angiography retains an important role in establishing the presence and extent of chronic thromboembolic disease. However, computed tomographic and magnetic resonance imaging are playing a growing diagnostic role. Innovative technologies such as dual-energy computed tomography, dynamic contrast-enhanced magnetic resonance imaging, and optical coherence tomography show promise for contributing diagnostic information and assisting in the preoperative characterization of patients with CTEPH.
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Fernandes TM, Pretorius VG, Kim NH. Caution Regarding Catheter-directed Thrombolysis: Chronic Thromboembolic Pulmonary Hypertension Mistaken for Acute Submassive Pulmonary Embolism. Am J Respir Crit Care Med 2017; 195:1066-1067. [PMID: 28231022 DOI: 10.1164/rccm.201611-2193im] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Timothy M Fernandes
- 1 Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, and
| | - Victor G Pretorius
- 2 Department of Cardiothoracic Surgery, University of California, San Diego, La Jolla, California
| | - Nick H Kim
- 1 Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, and
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Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is one of the potentially curable causes of pulmonary hypertension and is definitively treated with pulmonary thromboendartectomy. CTEPH can be overlooked, as its symptoms are nonspecific and can be mimicked by a wide range of diseases that can cause pulmonary hypertension. Early diagnosis of CTEPH and prompt evaluation for surgical candidacy are paramount factors in determining future outcomes. Imaging plays a central role in the diagnosis of CTEPH and patient selection for pulmonary thromboendartectomy and balloon pulmonary angioplasty. Currently, various imaging tools are used in concert, with techniques such as computed tomography (CT) and conventional pulmonary angiography providing detailed structural information, tests such as ventilation-perfusion (V/Q) scanning providing functional data, and magnetic resonance imaging providing a combination of morphologic and functional information. Emerging techniques such as dual-energy CT and single photon emission computed tomography-CT V/Q scanning promise to provide both anatomic and functional information in a single test and may change the way we image these patients in the near future. In this review, we discuss the roles of various imaging techniques and discuss their merits, limitations, and relative strengths in depicting the structural and functional changes of CTEPH. We also explore newer imaging techniques and the potential value they may offer.
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Gopalan D, Delcroix M, Held M. Diagnosis of chronic thromboembolic pulmonary hypertension. Eur Respir Rev 2017; 26:26/143/160108. [PMID: 28298387 DOI: 10.1183/16000617.0108-2016] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 01/10/2017] [Indexed: 12/19/2022] Open
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is the only potentially curable form of pulmonary hypertension. Rapid and accurate diagnosis is pivotal for successful treatment. Clinical signs and symptoms can be nonspecific and risk factors such as history of venous thromboembolism may not always be present. Echocardiography is the recommended first diagnostic step. Cardiopulmonary exercise testing is a complementary tool that can help to identify patients with milder abnormalities and chronic thromboembolic disease, triggering the need for further investigation. Ventilation/perfusion (V'/Q') scintigraphy is the imaging methodology of choice to exclude CTEPH. Single photon emission computed tomography V'/Q' is gaining popularity over planar imaging. Assessment of pulmonary haemodynamics by right heart catheterisation is mandatory, although there is increasing interest in noninvasive haemodynamic evaluation. Despite the status of digital subtraction angiography as the gold standard, techniques such as computed tomography (CT) and magnetic resonance imaging are increasingly used for characterising the pulmonary vasculature and assessment of operability. Promising new tools include dual-energy CT, combination of rotational angiography and cone beam CT, and positron emission tomography. These innovative procedures not only minimise misdiagnosis, but also provide additional vascular information relevant to treatment planning. Further research is needed to determine how these modalities will fit into the diagnostic algorithm for CTEPH.
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Affiliation(s)
- Deepa Gopalan
- Imperial College Hospitals, London, UK.,Cambridge University Hospital, Cambridge, UK
| | | | - Matthias Held
- Medical Mission Hospital, Dept of Internal Medicine, Center for Pulmonary Hypertension and Pulmonary Vascular Disease, Academic Teaching Hospital, Julius-Maximilian University of Würzburg, Würzburg, Germany
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The Lung–Blood Interface. Respir Med 2017. [DOI: 10.1007/978-3-319-41912-1_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ramos RP, Ferreira EVM, Valois FM, Cepeda A, Messina CMS, Oliveira RK, Araújo ATV, Teles CA, Neder JA, Nery LE, Ota-Arakaki JS. Clinical usefulness of end-tidal CO 2 profiles during incremental exercise in patients with chronic thromboembolic pulmonary hypertension. Respir Med 2016; 120:70-77. [PMID: 27817818 DOI: 10.1016/j.rmed.2016.09.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 09/28/2016] [Accepted: 09/30/2016] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Great ventilation to carbon dioxide output (ΔV˙E/ΔV˙CO2) and reduced end-tidal partial pressures for CO2 (PetCO2) during incremental exercise are hallmarks of chronic thromboembolic pulmonary hypertension (CTEPH) and idiopathic pulmonary arterial hypertension (IPAH). However, CTEPH is more likely to involve proximal arteries, which may lead to poorer right ventricle-pulmonary vascular coupling and worse gas exchange abnormalities. Therefore, abnormal PetCO2 profiles during exercise may be more prominent in patients with CTEPH and could be helpful to indicate disease severity. METHODS Seventy patients with CTEPH and 34 with IPAH underwent right heart catheterization and cardiopulmonary exercise testing. According to PetCO2 pattern during exercise, patients were classified as having an increase or stabilization in PetCO2 up to the gas exchange threshold (GET), an abrupt decrease in the rest-exercise transition or a progressive and slow decrease throughout exercise. A subgroup of patients with CTEPH underwent a constant work rate exercise test to obtain arterial blood samples during steady-state exercise. RESULTS Multivariate logistic regression analyses showed that progressive decreases in PetCO2 and SpO2 were better discriminative parameters than ΔV˙E/ΔV˙CO2 to distinguish CTEPH from IPAH. This pattern of PetCO2 was associated with worse functional impairment and greater reduction in PaCO2 during exercise. CONCLUSION Compared to patients with IPAH, patients with CTEPH present more impaired gas exchange during exercise, and PetCO2 abnormalities may be used to identify more clinically and hemodynamically severe cases.
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Affiliation(s)
- R P Ramos
- Pulmonary Circulation Group and Pulmonary Function and Exercise Physiology Unit, Division of Respiratory Diseases, Department of Medicine, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - E V M Ferreira
- Pulmonary Circulation Group and Pulmonary Function and Exercise Physiology Unit, Division of Respiratory Diseases, Department of Medicine, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil.
| | - F M Valois
- Pulmonary Circulation Group and Pulmonary Function and Exercise Physiology Unit, Division of Respiratory Diseases, Department of Medicine, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - A Cepeda
- Pulmonary Circulation Group and Pulmonary Function and Exercise Physiology Unit, Division of Respiratory Diseases, Department of Medicine, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - C M S Messina
- Pulmonary Circulation Group and Pulmonary Function and Exercise Physiology Unit, Division of Respiratory Diseases, Department of Medicine, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - R K Oliveira
- Pulmonary Circulation Group and Pulmonary Function and Exercise Physiology Unit, Division of Respiratory Diseases, Department of Medicine, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - A T V Araújo
- Pulmonary Circulation Group and Pulmonary Function and Exercise Physiology Unit, Division of Respiratory Diseases, Department of Medicine, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - C A Teles
- Pulmonary Circulation Group and Pulmonary Function and Exercise Physiology Unit, Division of Respiratory Diseases, Department of Medicine, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - J A Neder
- Pulmonary Circulation Group and Pulmonary Function and Exercise Physiology Unit, Division of Respiratory Diseases, Department of Medicine, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - L E Nery
- Pulmonary Circulation Group and Pulmonary Function and Exercise Physiology Unit, Division of Respiratory Diseases, Department of Medicine, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - J S Ota-Arakaki
- Pulmonary Circulation Group and Pulmonary Function and Exercise Physiology Unit, Division of Respiratory Diseases, Department of Medicine, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
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Takagi H, Ota H, Sugimura K, Otani K, Tominaga J, Aoki T, Tatebe S, Miura M, Yamamoto S, Sato H, Yaoita N, Suzuki H, Shimokawa H, Takase K. Dual-energy CT to estimate clinical severity of chronic thromboembolic pulmonary hypertension: Comparison with invasive right heart catheterization. Eur J Radiol 2016; 85:1574-80. [DOI: 10.1016/j.ejrad.2016.06.010] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 05/13/2016] [Accepted: 06/15/2016] [Indexed: 10/21/2022]
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Jujo T, Tanabe N, Sakao S, Ishibashi-Ueda H, Ishida K, Naito A, Kato F, Takeuchi T, Sekine A, Nishimura R, Sugiura T, Shigeta A, Masuda M, Tatsumi K. Severe Pulmonary Arteriopathy Is Associated with Persistent Hypoxemia after Pulmonary Endarterectomy in Chronic Thromboembolic Pulmonary Hypertension. PLoS One 2016; 11:e0161827. [PMID: 27571267 PMCID: PMC5003341 DOI: 10.1371/journal.pone.0161827] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 08/14/2016] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Chronic thromboembolic pulmonary hypertension (CTEPH) is characterized by occlusion of pulmonary arteries by organized chronic thrombi. Persistent hypoxemia and residual pulmonary hypertension (PH) following successful pulmonary endarterectomy (PEA) are clinically important problems; however, the underlying mechanisms remain unclear. We have previously reported that residual PH is closely related to severe pulmonary vascular remodeling and hypothesize that this arteriopathy might also be involved in impaired gas exchange. The purpose of this study was to evaluate the association between hypoxemia and pulmonary arteriopathy after PEA. METHODS AND RESULTS Between December 2011 and November 2014, 23 CTEPH patients underwent PEA and lung biopsy. The extent of pulmonary arteriopathy was quantified pathologically in lung biopsy specimens. We then analyzed the relationship between the severity of pulmonary arteriopathy and gas exchange after PEA. We observed that the severity of pulmonary arteriopathy was negatively correlated with postoperative and follow-up PaO2 (postoperative PaO2: r = -0.73, p = 0.0004; follow-up PaO2: r = -0.66, p = 0.001), but not with preoperative PaO2 (r = -0.373, p = 0.08). Multivariate analysis revealed that the obstruction ratio and patient age were determinants of PaO2 one month after PEA (R2 = 0.651, p = 0.00009). Furthermore, the obstruction ratio and improvement of pulmonary vascular resistance were determinants of PaO2 at follow-up (R2 = 0.545, p = 0.0002). Severe pulmonary arteriopathy might increase the alveolar-arterial oxygen difference and impair diffusion capacity, resulting in hypoxemia following PEA. CONCLUSION The severity of pulmonary arteriopathy was closely associated with postoperative and follow-up hypoxemia.
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Affiliation(s)
- Takayuki Jujo
- Department of Respirology (B2), Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-Ku, Chiba City, 260–8670, Japan
- Department of Advanced Medicine in Pulmonary Hypertension, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-Ku, Chiba City, 260–8670, Japan
- * E-mail:
| | - Nobuhiro Tanabe
- Department of Respirology (B2), Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-Ku, Chiba City, 260–8670, Japan
- Department of Advanced Medicine in Pulmonary Hypertension, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-Ku, Chiba City, 260–8670, Japan
| | - Seiichiro Sakao
- Department of Respirology (B2), Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-Ku, Chiba City, 260–8670, Japan
| | - Hatsue Ishibashi-Ueda
- Department of Pathology, National Cerebral and Cardiovascular Center, 5-7-1, Fujishiro-Dai, Suita City, Osaka, 565–8565, Japan
| | - Keiichi Ishida
- Department of Cardiovascular Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-Ku, Chiba City, 260–8670, Japan
| | - Akira Naito
- Department of Respirology (B2), Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-Ku, Chiba City, 260–8670, Japan
| | - Fumiaki Kato
- Department of Respirology (B2), Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-Ku, Chiba City, 260–8670, Japan
| | - Takao Takeuchi
- Department of Respirology (B2), Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-Ku, Chiba City, 260–8670, Japan
| | - Ayumi Sekine
- Department of Respirology (B2), Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-Ku, Chiba City, 260–8670, Japan
- Department of Advanced Medicine in Pulmonary Hypertension, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-Ku, Chiba City, 260–8670, Japan
| | - Rintaro Nishimura
- Department of Respirology (B2), Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-Ku, Chiba City, 260–8670, Japan
- Department of Advanced Medicine in Pulmonary Hypertension, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-Ku, Chiba City, 260–8670, Japan
| | - Toshihiko Sugiura
- Department of Respirology (B2), Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-Ku, Chiba City, 260–8670, Japan
| | - Ayako Shigeta
- Department of Respirology (B2), Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-Ku, Chiba City, 260–8670, Japan
| | - Masahisa Masuda
- Department of Cardiovascular Surgery, Chiba Medical Center, National Hospital Organization, 4-1-2, Tsubakimori, Chuo-ku, Chiba City, 260–8606, Japan
| | - Koichiro Tatsumi
- Department of Respirology (B2), Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-Ku, Chiba City, 260–8670, Japan
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Mirsadraee S, Reid JH, Connell M, MacNee W, Hirani N, Murchison JT, van Beek EJ. Dynamic (4D) CT perfusion offers simultaneous functional and anatomical insights into pulmonary embolism resolution. Eur J Radiol 2016; 85:1883-1890. [PMID: 27666631 DOI: 10.1016/j.ejrad.2016.08.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 08/18/2016] [Accepted: 08/25/2016] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Resolution and long-term functional effects of pulmonary emboli are unpredictable. This study was carried out to assess persisting vascular bed perfusion abnormalities and resolution of arterial thrombus in patients with recent pulmonary embolism (PE). METHODS AND MATERIALS 26 Patients were prospectively evaluated by dynamic (4D) contrast enhanced CT perfusion dynamic pulmonary CT perfusion. Intermittent volume imaging was performed every 1.5-1.7s during breath-hold and perfusion values were calculated by maximum-slope technique. Thrombus load (modified Miller score; MMS) and ventricular diameter were determined. Perfusion maps were visually scored and correlated with residual endoluminal filling defects. RESULTS The mean initial thrombus load was 13.1±4.6 MMS (3-16), and 1.2±2.1 MMS (0-8) at follow up. From the 24 CTPs with diagnostic quality perfusion studies, normal perfusion was observed in 7 (29%), and mildly-severely abnormal in 17 (71%). In 15 patients with no residual thrombus on follow up CTPA, normal perfusion was observed in 6, and abnormal perfusion in 9. Perfusion was abnormal in all patients with residual thrombus on follow up CTPA. Pulmonary perfusion changes were classified as reduced (n=4), delayed (systemic circulation pattern; n=5), and absent (no-flow; n=5). The right ventricle was dilated in 12/25 (48%) at presentation, and normal in all 26 follow up scans. Weak correlation was found between initial ventricular dilatation and perfusion abnormality at follow up (r=0.15). CONCLUSIONS Most patients had substantial perfusion abnormality at 3-6 months post PE. Abnormal perfusion patterns were frequently observed in patients and in regions with no corresponding evidence of residual thrombus on CTPA. Some defects exhibit delayed, presumed systemic, enhancement (which we have termed 'stunned' lung). CT perfusion provides combined anatomical and functional information about PE resolution.
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Affiliation(s)
- Saeed Mirsadraee
- Clinical Research Imaging Centre, Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, United Kingdom.
| | - John H Reid
- Clinical Research Imaging Centre, Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, United Kingdom
| | - Martin Connell
- Clinical Research Imaging Centre, Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, United Kingdom
| | - William MacNee
- The Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, United Kingdom
| | - Nikhil Hirani
- The Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, United Kingdom
| | - John T Murchison
- Department of Radiology, Royal Infirmary of Edinburgh, 51 Little France Crescent, Edinburgh EH16 4SA, United Kingdom
| | - Edwin J van Beek
- Clinical Research Imaging Centre, Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, United Kingdom
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Le Faivre J, Duhamel A, Khung S, Faivre JB, Lamblin N, Remy J, Remy-Jardin M. Impact of CT perfusion imaging on the assessment of peripheral chronic pulmonary thromboembolism: clinical experience in 62 patients. Eur Radiol 2016; 26:4011-4020. [PMID: 26976297 DOI: 10.1007/s00330-016-4262-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 01/26/2016] [Accepted: 02/01/2016] [Indexed: 10/22/2022]
Abstract
PURPOSE To evaluate the impact of CT perfusion imaging on the detection of peripheral chronic pulmonary embolisms (CPE). MATERIALS AND METHODS 62 patients underwent a dual-energy chest CT angiographic examination with (a) reconstruction of diagnostic and perfusion images; (b) enabling depiction of vascular features of peripheral CPE on diagnostic images and perfusion defects (20 segments/patient; total: 1240 segments examined). The interpretation of diagnostic images was of two types: (a) standard (i.e., based on cross-sectional images alone) or (b) detailed (i.e., based on cross-sectional images and MIPs). RESULTS The segment-based analysis showed (a) 1179 segments analyzable on both imaging modalities and 61 segments rated as nonanalyzable on perfusion images; (b) the percentage of diseased segments was increased by 7.2 % when perfusion imaging was compared to the detailed reading of diagnostic images, and by 26.6 % when compared to the standard reading of images. At a patient level, the extent of peripheral CPE was higher on perfusion imaging, with a greater impact when compared to the standard reading of diagnostic images (number of patients with a greater number of diseased segments: n = 45; 72.6 % of the study population). CONCLUSION Perfusion imaging allows recognition of a greater extent of peripheral CPE compared to diagnostic imaging. KEY POINTS • Dual-energy computed tomography generates standard diagnostic imaging and lung perfusion analysis. • Depiction of CPE on central arteries relies on standard diagnostic imaging. • Detection of peripheral CPE is improved by perfusion imaging.
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Affiliation(s)
- Julien Le Faivre
- Department of Thoracic Imaging, Hospital Calmette, University of Lille, CHU Lille, EA 2694, F-59000, Lille, France
| | - Alain Duhamel
- Department of Biostatistics, University of Lille, CHU Lille, EA 2694, F-59000, Lille, France
| | - Suonita Khung
- Department of Thoracic Imaging, Hospital Calmette, University of Lille, CHU Lille, EA 2694, F-59000, Lille, France
| | - Jean-Baptiste Faivre
- Department of Thoracic Imaging, Hospital Calmette, University of Lille, CHU Lille, EA 2694, F-59000, Lille, France
| | - Nicolas Lamblin
- Department of Cardiology, Cardiology Hospital, University of Lille, CHU Lille, F-59000, Lille, France
| | - Jacques Remy
- Department of Thoracic Imaging, Hospital Calmette, University of Lille, CHU Lille, EA 2694, F-59000, Lille, France
| | - Martine Remy-Jardin
- Department of Thoracic Imaging, Hospital Calmette, University of Lille, CHU Lille, EA 2694, F-59000, Lille, France.
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Bruggen CEVD, Spruijt OA, Meijboom LJ, Noordegraaf AV. Pulmonary hypertension. IMAGING 2016. [DOI: 10.1183/2312508x.10002715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Walker CM, Rosado-de-Christenson ML, Martínez-Jiménez S, Kunin JR, Wible BC. Bronchial arteries: anatomy, function, hypertrophy, and anomalies. Radiographics 2015; 35:32-49. [PMID: 25590386 DOI: 10.1148/rg.351140089] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The two main sources of blood supply to the lungs and their supporting structures are the pulmonary and bronchial arteries. The bronchial arteries account for 1% of the cardiac output but can be recruited to provide additional systemic circulation to the lungs in various acquired and congenital thoracic disorders. An understanding of bronchial artery anatomy and function is important in the identification of bronchial artery dilatation and anomalies and the formulation of an appropriate differential diagnosis. Visualization of dilated bronchial arteries at imaging should alert the radiologist to obstructive disorders that affect the pulmonary circulation and prompt the exclusion of diseases that produce or are associated with pulmonary artery obstruction, including chronic infectious and/or inflammatory processes, chronic thromboembolic disease, and congenital anomalies of the thorax (eg, proximal interruption of the pulmonary artery). Conotruncal abnormalities, such as pulmonary atresia with ventricular septal defect, are associated with systemic pulmonary supply provided by aortic branches known as major aortopulmonary collaterals, which originate in the region of the bronchial arteries. Bronchial artery malformation is a rare left-to-right or left-to-left shunt characterized by an anomalous connection between a bronchial artery and a pulmonary artery or a pulmonary vein, respectively. Bronchial artery interventions can be used successfully in the treatment of hemoptysis, with a low risk of adverse events. Multidetector computed tomography helps provide a vascular road map for the interventional radiologist before bronchial artery embolization.
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Affiliation(s)
- Christopher M Walker
- From the Department of Radiology, Thoracic Imaging Section (C.M.W., M.L.R.d.C., S.M.J., J.R.K.) and Interventional Radiology Section (B.C.W.), Saint Luke's Hospital of Kansas City, 4401 Wornall Rd, Kansas City, MO 64111; and Department of Radiology, University of Missouri-Kansas City, Kansas City, Mo (C.M.W., M.L.R.d.C., S.M.J, J.R.K, B.C.W.)
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Byun SS, Park JH, Kim JH, Sung YM, Kim YK, Kim EY, Park EA. Coronary CT findings of coronary to bronchial arterial communication in chronic pulmonary disease. Int J Cardiovasc Imaging 2015; 31 Suppl 1:69-75. [DOI: 10.1007/s10554-015-0647-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 03/16/2015] [Indexed: 11/29/2022]
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Different perfusion pattern between acute and chronic pulmonary thromboembolism: evaluation with two-phase dual-energy perfusion CT. AJR Am J Roentgenol 2013; 200:812-7. [PMID: 23521453 DOI: 10.2214/ajr.12.8697] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE The purpose of this study was to evaluate whether two-phase dual-energy CT can differentiate between lung perfusion patterns of patients with chronic pulmonary thromboembolism (PTE) and those of patients with acute PTE. SUBJECTS AND METHODS A total of 114 patients clinically suspected to have PTE were prospectively enrolled. All patients underwent dual-energy CT at pulmonary artery (PA) and delayed phases. Of 68 patients diagnosed with PTE on CT, 42 were finally included. Iodine-related attenuation values (IRAs) were measured in PA and delayed phases for each lung segment, and IRA change ratios were calculated using the formula 100% × [(IRA of delayed phase) - (IRA of PA phase)]/(IRA of PA phase). RESULTS Among the 42 patients (19 men and 23 women; mean age, 60.3 ± 13.2 years; range, 28-82 years), 24 had a diagnosis of acute PTE and 18 of chronic PTE. Those segments with both perfusion and filling defects (n = 143) in patients with acute PTE showed no significant changes of mean IRA between PA and delayed phases, whereas the segments from patients with chronic PTE (n = 94) showed significantly increased IRA on delayed phase as compared with PA phase. The mean IRA change ratios in acute and chronic PTE were -3.14% and 191.9%, respectively (p < 0.0001). CONCLUSION Chronic PTE segments were significantly more enhanced on the delayed phase of two-phase dual-energy CT images than were acute PTE segments, possibly resulting from more extensive systemic collateral formation in chronic PTE. Two-phase dual-energy CT can be used to differentiate distinct regional perfusion patterns between acute and chronic PTE.
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Page A, Ali JM, Maraka J, Mackenzie-Ross R, Jenkins DP. Management of chronic thromboembolic pulmonary hypertension: current status and emerging options. ACTA ACUST UNITED AC 2013. [DOI: 10.2217/cpr.13.22] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Evaluation of hemodynamic changes by use of phase-contrast MRI for patients with interstitial pneumonia, with special focus on blood flow reduction after breath-holding and bronchopulmonary shunt flow. Jpn J Radiol 2012; 31:197-203. [DOI: 10.1007/s11604-012-0171-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Accepted: 11/27/2012] [Indexed: 11/25/2022]
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Pena E, Dennie C. Acute and Chronic Pulmonary Embolism: An In-depth Review for Radiologists Through the Use of Frequently Asked Questions. Semin Ultrasound CT MR 2012; 33:500-21. [DOI: 10.1053/j.sult.2012.06.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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James SH, Wald R, Wintersperger BJ, Jimenez-Juan L, Deva D, Crean AM, Nguyen E, Paul NS, Ley S. Accuracy of right and left ventricular functional assessment by short-axis vs axial cine steady-state free-precession magnetic resonance imaging: intrapatient correlation with main pulmonary artery and ascending aorta phase-contrast flow measurements. Can Assoc Radiol J 2012; 64:213-9. [PMID: 22579337 DOI: 10.1016/j.carj.2011.12.016] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2011] [Revised: 11/11/2011] [Accepted: 12/19/2011] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE The left ventricle (LV) is routinely assessed with cardiac magnetic resonance imaging (MRI) by using short-axis orientation; it remains unclear whether the right ventricle (RV) can also be adequately assessed in this orientation or whether dedicated axial orientation is required. We used phase-contrast (PC) flow measurements in the main pulmonary artery (MPA) and the ascending aorta (Aorta) as nonvolumetric standard of reference and compared RV and LV volumes in short-axis and axial orientations. METHODS A retrospective analysis identified 30 patients with cardiac MRI data sets. Patients underwent MRI (1.5 T or 3 T), with retrospectively gated cine steady-state free-precession in axial and short-axis orientations. PC flow analyses of MPA and Aorta were used as the reference measure of RV and LV output. RESULTS There was a high linear correlation between MPA-PC flow and RV-stroke volume (SV) short axis (r = 0.9) and RV-SV axial (r = 0.9). Bland-Altman analysis revealed a mean offset of 1.4 mL for RV axial and -2.3 mL for RV-short-axis vs MPA-PC flow. There was a high linear correlation between Aorta-PC flow and LV-SV short-axis (r = 0.9) and LV-SV axial (r = 0.9). Bland-Altman analysis revealed a mean offset of 4.8 m for LV short axis and 7.0 mL for LV axial vs Aorta-PC flow. There was no significant difference (P = .6) between short-axis-LV SV and short-axis-RV SV. CONCLUSION No significant impact of the slice acquisition orientation for determination of RV and LV stroke volumes was found. Therefore, cardiac magnetic resonance workflow does not need to be extended by an axial data set for patients without complex cardiac disease for assessment of biventricular function and volumes.
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Affiliation(s)
- Susan H James
- Joint Department of Medical Imaging, Toronto General Hospital, University of Toronto, Ontario, Canada
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Weber TF, von Tengg-Kobligk H, Kopp-Schneider A, Ley-Zaporozhan J, Kauczor HU, Ley S. High-resolution phase-contrast MRI of aortic and pulmonary blood flow during rest and physical exercise using a MRI compatible bicycle ergometer. Eur J Radiol 2011; 80:103-8. [DOI: 10.1016/j.ejrad.2010.06.045] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2010] [Revised: 06/22/2010] [Accepted: 06/25/2010] [Indexed: 10/19/2022]
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Rajaram S, Swift AJ, Capener D, Telfer A, Davies C, Hill C, Condliffe R, Elliot C, Hurdman J, Kiely DG, Wild JM. Diagnostic accuracy of contrast-enhanced MR angiography and unenhanced proton MR imaging compared with CT pulmonary angiography in chronic thromboembolic pulmonary hypertension. Eur Radiol 2011; 22:310-7. [PMID: 21887483 DOI: 10.1007/s00330-011-2252-x] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2011] [Revised: 06/13/2011] [Accepted: 07/04/2011] [Indexed: 10/17/2022]
Abstract
OBJECTIVE To evaluate the diagnostic accuracy of contrast-enhanced MR angiography (CE-MRA) and the added benefit of unenhanced proton MR angiography compared with CT pulmonary angiography (CTPA) in patients with chronic thromboembolic disease (CTE). METHODS A 2 year retrospective study of 53 patients with chronic thromboembolic pulmonary hypertension who underwent CTPA and MRI for suspected pulmonary hypertension and a control group of 36 patients with no CT evidence of pulmonary embolism. The MRI was evaluated for CTE and the combined diagnostic accuracy of ce-MRA and unenhanced proton MRA was determined. CE-MRA generated lung perfusion maps were also assessed. RESULTS The overall sensitivity and specificity of CE-MRA in diagnosing proximal and distal CTE were 98% and 94%, respectively. The sensitivity improved from 50% to 88% for central vessel disease when CE-MRA images were analysed with unenhanced proton MRA. The CE-MRA identified more stenoses (29/18), post-stenosis dilatation (23/7) and occlusions (37/29) compared with CTPA. The CE-MRA perfusion images showed a sensitivity of 92% for diagnosing CTE. CONCLUSION CE-MRA has high sensitivity and specificity for diagnosing CTE. The sensitivity of CE-MRA for visualisation of adherent central and lobar thrombus significantly improves with the addition of unenhanced proton MRA which delineates the vessel wall.
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Affiliation(s)
- Smitha Rajaram
- Unit of Academic Radiology, University of Sheffield, Sheffield, UK.
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Renard B, Remy-Jardin M, Santangelo T, Faivre JB, Tacelli N, Remy J, Duhamel A. Dual-energy CT angiography of chronic thromboembolic disease: Can it help recognize links between the severity of pulmonary arterial obstruction and perfusion defects? Eur J Radiol 2011; 79:467-72. [DOI: 10.1016/j.ejrad.2010.04.018] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2009] [Revised: 04/09/2010] [Accepted: 04/14/2010] [Indexed: 11/30/2022]
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Cho EJ, Jiamsripong P, Calleja AM, Alharthi MS, McMahon EM, Chandrasekaran K, Cha S, Bukatina AE, Khandheria BK, Belohlavek M. The Left Ventricle Responds to Acute Graded Elevation of Right Ventricular Afterload by Augmentation of Twist Magnitude and Untwist Rate. J Am Soc Echocardiogr 2011; 24:922-9. [DOI: 10.1016/j.echo.2011.04.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2010] [Indexed: 12/20/2022]
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Dual-energy CT angiography for assessment of regional pulmonary perfusion in patients with chronic thromboembolic pulmonary hypertension: initial experience. AJR Am J Roentgenol 2011; 196:524-32. [PMID: 21343493 DOI: 10.2214/ajr.10.4842] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
OBJECTIVE This study assessed the utility of dual-energy pulmonary CT angiography (CTA) for noninvasive assessment of regional pulmonary perfusion in patients with chronic thromboembolic pulmonary hypertension (CTEPH). Regional perfusion abnormalities were correlated with hemodynamic parameters and structural abnormalities on pulmonary CTA. SUBJECTS AND METHODS Twenty patients with CTEPH (11 men and nine women; mean age, 61.5 years) underwent pulmonary CTA with a dual-energy technique. Right heart catheterization data were available in 15 cases. Scan parameters were as follows: tube A, 140 kV (75 mA); tube B, 80 kV (300 mA); gantry rotation, 500 milliseconds; pitch, 0.5; and collimation, 14 × 1.2 mm. An iodine map was generated via three-material-decomposition and was scored for extent of hypoperfusion. Correlation was made with mosaic attenuation pattern, extent of vascular obstruction, and right heart hemodynamics. Iodine attenuation values were analyzed within completely occluded, partially occluded, and disease-free lobes. RESULTS A strong correlation existed between dual-energy CT-derived perfusion and mosaic attenuation pattern when both lobar (r > 0.6; n = 20; p < 0.006) and whole-lung scores were assessed (r = 0.77; n = 20; p < 0.001). There was no statistically significant correlation between dual-energy CT perfusion and vascular obstructive index, mean pulmonary artery pressure, or pulmonary vascular resistance (p > 0.08). Of 42 completely occluded lobes, 27 (64%) had demonstrable residual perfusion (mismatching), suggesting that blood supply was maintained via systemic collaterals. CONCLUSION Dual-energy CT can offer a "one-stop" assessment of anatomy and perfusion in CTEPH. The additional information provided by dual-energy CT could have a future role in helping guide patient selection for thromboendarterectomy surgery.
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Yu H, Liu SY, Li HM, Xiao XS, Dong WH. Empirical description of bronchial and nonbronchial arteries with MDCT. Eur J Radiol 2010; 75:147-53. [DOI: 10.1016/j.ejrad.2009.04.055] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2008] [Revised: 04/19/2009] [Accepted: 04/21/2009] [Indexed: 10/20/2022]
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Multidetector Computed Tomographic Pulmonary Angiography: Beyond Acute Pulmonary Embolism. Radiol Clin North Am 2010; 48:51-65. [DOI: 10.1016/j.rcl.2009.09.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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