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Madigan S, Proudman S, Schembri D, Davies H, Adams R. Use of exercise tests in screening for pulmonary arterial hypertension in systemic sclerosis: A systematic literature review. JOURNAL OF SCLERODERMA AND RELATED DISORDERS 2024; 9:50-58. [PMID: 38333530 PMCID: PMC10848927 DOI: 10.1177/23971983231199148] [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: 07/25/2023] [Accepted: 08/17/2023] [Indexed: 02/10/2024]
Abstract
Background and objective Patients with systemic sclerosis (SSc) and pulmonary arterial hypertension (PAH) have a poor prognosis, accounting for 30% of all SSc-related deaths. Guidelines recommend annual screening for PAH regardless of symptoms, as early treatment improves outcomes. Current protocols include combinations of clinical features, biomarkers, pulmonary function tests, and echocardiography. None include exercise testing, although early-stage PAH may only be evident during exercise. This systematic review assessed the performance of exercise tests in predicting the presence of PAH in patients with SSc, where PAH was confirmed through right heart catheterisation (RHC). Methods Comprehensive literature searches were performed using MEDLINE, EMBASE, Cochrane Database of Systematic Reviews and Cochrane Central Register of Controlled Trails, CINAHL, Scopus and Web of Science from inception to May 2023. Articles were screened for eligibility by two independent reviewers. Eligibility criteria included the use of a non-invasive exercise test to screen adult patients to detect PAH in a population without a previous diagnosis of PAH, with diagnosis confirmed by RHC. Results Eight studies met the inclusion criteria, describing at least one of three different non-invasive exercise tests: cardiopulmonary exercise test, six-minute walk test and stress Doppler echocardiography. All studies found that exercise tests had some ability to predict the presence of PAH, with sensitivity between 50% and 100% and specificity from 73% to 91%. Conclusion Exercise tests are infrequently used for screening for PAH in SSc but can predict the presence of PAH. More data are required to establish which tests are most effective.
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Affiliation(s)
- Sarah Madigan
- School of Medicine, The University of Adelaide, Adelaide, SA, Australia
- Respiratory, Sleep and Ventilation Services, Southern Adelaide Local Health Network, Adelaide, SA, Australia
| | - Susanna Proudman
- School of Medicine, The University of Adelaide, Adelaide, SA, Australia
- Rheumatology Unit, Central Adelaide Local Health Network, Adelaide, SA, Australia
| | - David Schembri
- Respiratory, Sleep and Ventilation Services, Southern Adelaide Local Health Network, Adelaide, SA, Australia
| | - Huw Davies
- Respiratory, Sleep and Ventilation Services, Southern Adelaide Local Health Network, Adelaide, SA, Australia
- FHMRI–Sleep Health, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Robert Adams
- School of Medicine, The University of Adelaide, Adelaide, SA, Australia
- Respiratory, Sleep and Ventilation Services, Southern Adelaide Local Health Network, Adelaide, SA, Australia
- FHMRI–Sleep Health, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
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Škafar M, Ambrožič J, Toplišek J, Cvijić M. Role of Exercise Stress Echocardiography in Pulmonary Hypertension. Life (Basel) 2023; 13:1385. [PMID: 37374168 PMCID: PMC10302645 DOI: 10.3390/life13061385] [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: 05/01/2023] [Revised: 05/31/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023] Open
Abstract
Resting and exercise right heart catheterisation is the gold standard method to diagnose and differentiate types of pulmonary hypertension (PH). As it carries technical challenges, the question arises if non-invasive exercise stress echocardiography may be used as an alternative. Exercise echocardiography can unmask exercise PH, detect the early stages of left ventricular diastolic dysfunction, and, therefore, differentiate between pre- and post-capillary PH. Regardless of the underlying aetiology, a developed PH is associated with increased mortality. Parameters of overt right ventricle (RV) dysfunction, including RV dilation, reduced RV ejection fraction, and elevated right-sided filling pressures, are detectable with resting echocardiography and are associated with worse outcome. However, these measures all fail to identify occult RV dysfunction. Echocardiographic measures of RV contractile reserve during exercise echocardiography are very promising and provide incremental prognostic information on clinical outcome. In this paper, we review pulmonary haemodynamic response to exercise, briefly describe the modalities for assessing pulmonary haemodynamics, and discuss in depth the contemporary key clinical application of exercise stress echocardiography in patients with PH.
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Affiliation(s)
- Mojca Škafar
- Department of Cardiology, University Medical Centre Ljubljana, Zaloška 2, 1000 Ljubljana, Slovenia; (M.Š.); (J.A.); (J.T.)
- Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia
| | - Jana Ambrožič
- Department of Cardiology, University Medical Centre Ljubljana, Zaloška 2, 1000 Ljubljana, Slovenia; (M.Š.); (J.A.); (J.T.)
| | - Janez Toplišek
- Department of Cardiology, University Medical Centre Ljubljana, Zaloška 2, 1000 Ljubljana, Slovenia; (M.Š.); (J.A.); (J.T.)
| | - Marta Cvijić
- Department of Cardiology, University Medical Centre Ljubljana, Zaloška 2, 1000 Ljubljana, Slovenia; (M.Š.); (J.A.); (J.T.)
- Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia
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Moysidou GS, Dara A, Arvanitaki A, Skalkou A, Pagkopoulou E, Daoussis D, Kitas GD, Dimitroulas T. Understanding and managing cardiac involvement in systemic sclerosis. Expert Rev Clin Immunol 2023; 19:293-304. [PMID: 36690592 DOI: 10.1080/1744666x.2023.2171988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
INTRODUCTION Cardiac involvement is common in systemic sclerosis occurring in up to 80% of patients. Primary myocardial dysfunction results from impairment of coronary microvascular circulation, myocardial inflammation and fibrosis with the prevalence of atherosclerosis remaining contradictory. AREAS COVERED This review presents the various aspects of cardiac involvement in SSc from a pathophysiological, clinical, diagnostic and therapeutic standpoint. Imaging modalities with emerging role in the understanding of mechanisms and prompt diagnosis of myocardial fibrosis namely cardiac magnetic resonance are also discussed. EXPERT OPINION Cardiac involvement in SSc - and particularly primary myocardial disease - remains a challenge as clinical symptoms manifest in advanced stages of heart failure and convey poor prognosis. Over the last years the introduction of sophisticated imaging methods of myocardial function has resulted in a better understanding of the underlying pathophysiological processes of myocardial damage such as microvasculopathy, inflammation, diffuse or focal fibrosis. Such developments could contribute to the identification of patients at higher risk for subclinical heart involvement for whom diligent surveillance and prompt initiation of therapy with cardioprotective and/or immunosuppressive drugs coupled with invasive interventions namely radiofrequency ablation, implantable cardioverter-defibrillator when indicated, may improve long-term outcomes.
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Affiliation(s)
- Georgia-Savina Moysidou
- 4th Department of Internal Medicine, Attikon, University Hospital, National and Kapodistrian University of Athens, Chaidari, Greece.,Laboratory of Autoimmunity and Inflammation, Biomedical Research Foundation of the Academy of Athens (BRFAA), Athens, Greece
| | - Athanasia Dara
- 4th Department of Internal Medicine, School of Medicine, Hippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Alexandra Arvanitaki
- First Department of Cardiology, AHEPA University Hospital, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Anastasia Skalkou
- 4th Department of Internal Medicine, School of Medicine, Hippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Eleni Pagkopoulou
- 4th Department of Internal Medicine, School of Medicine, Hippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Dimitris Daoussis
- Department of Rheumatology, University of Patras Medical School, Patras, Greece
| | - George D Kitas
- Department of Rheumatology, Dudley Group NHS Foundation Trust, Russells Hall Hospital, Dudley, UK
| | - Theodoros Dimitroulas
- Department of Rheumatology, Dudley Group NHS Foundation Trust, Russells Hall Hospital, Dudley, UK
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Khattab E, Velidakis N, Gkougkoudi E, Kadoglou NP. Exercise-Induced Pulmonary Hypertension: A Valid Entity or Another Factor of Confusion? LIFE (BASEL, SWITZERLAND) 2023; 13:life13010128. [PMID: 36676077 PMCID: PMC9860538 DOI: 10.3390/life13010128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/22/2022] [Accepted: 12/27/2022] [Indexed: 01/05/2023]
Abstract
Exercise-induced pulmonary hypertension EIPH has been defined as an increase in mean pulmonary arterial pressure (mPAP) during exercise in otherwise normal values at rest. EIPH reflects heart and/or lung dysfunction and may precede the development of manifest pulmonary hypertension (PH) in a proportion of patients. It is also associated with decreased life expectancy in patients with heart failure with reduced ejection fraction (HFrEF) or left ventricle (LV) valvular diseases. Diastolic dysfunction exacerbated during exercise relates to increased LV filling pressure and left atrial pressure (LAP). In this context backward, transmitted pressure alone or accompanied with backward blood flow promotes EIPH. The gold standard of EIPH assessment remains the right heart catheterization during exercise, which is an accurate but invasive method. Alternatively, non-invasive diagnostic modalities include exercise stress echocardiography (ESE) and cardiopulmonary exercise testing (CPET). Both diagnostic tests are performed under gradually increasing physical stress using treadmill and ergo-cycling protocols. Escalating workload during the exercise is analogous to the physiological response to real exercise. The results of the latter techniques show good correlation with invasive measurements, but they suffer from lack of validation and cut-off value determination. Although it is not officially recommended, there are accumulated data supporting the importance of EIPH diagnosis in the assessment of other mild/subclinical or probably fatal diseases in patients with latent PH or heart failure or LV valvular disease, respectively. Nevertheless, larger, prospective studies are required to ensure its role in clinical practice.
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Tsujimoto Y, Kumasawa J, Shimizu S, Nakano Y, Kataoka Y, Tsujimoto H, Kono M, Okabayashi S, Imura H, Mizuta T. Doppler trans-thoracic echocardiography for detection of pulmonary hypertension in adults. Cochrane Database Syst Rev 2022; 5:CD012809. [PMID: 35532166 PMCID: PMC9132178 DOI: 10.1002/14651858.cd012809.pub2] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
BACKGROUND Pulmonary hypertension (PH) is an important cause of morbidity and mortality, which leads to a substantial loss of exercise capacity. PH ultimately leads to right ventricular overload and subsequent heart failure and early death. Although early detection and treatment of PH are recommended, due to the limited responsiveness to therapy at late disease stages, many patients are diagnosed at a later stage of the disease because symptoms and signs of PH are nonspecific at earlier stages. While direct pressure measurement with right-heart catheterisation is the clinical reference standard for PH, it is not routinely used due to its invasiveness and complications. Trans-thoracic Doppler echocardiography is less invasive, less expensive, and widely available compared to right-heart catheterisation; it is therefore recommended that echocardiography be used as an initial diagnosis method in guidelines. However, several studies have questioned the accuracy of noninvasively measured pulmonary artery pressure. There is substantial uncertainty about the diagnostic accuracy of echocardiography for the diagnosis of PH. OBJECTIVES To determine the diagnostic accuracy of trans-thoracic Doppler echocardiography for detecting PH. SEARCH METHODS We searched MEDLINE, Embase, Web of Science Core Collection, ClinicalTrials.gov, World Health Organization International Clinical Trials Registry Platform from database inception to August 2021, reference lists of articles, and contacted study authors. We applied no restrictions on language or type of publication. SELECTION CRITERIA We included studies that evaluated the diagnostic accuracy of trans-thoracic Doppler echocardiography for detecting PH, where right-heart catheterisation was the reference standard. We excluded diagnostic case-control studies (two-gate design), studies where right-heart catheterisation was not the reference standard, and those in which the reference standard threshold differed from 25 mmHg. We also excluded studies that did not provide sufficient diagnostic test accuracy data (true-positive [TP], false-positive [FP], true-negative [TN], and false-negative [FN] values, based on the reference standard). We included studies that provided data from which we could extract TP, FP, TN, and FN values, based on the reference standard. Two authors independently screened and assessed the eligibility based on the titles and abstracts of records identified by the search. After the title and abstract screening, the full-text reports of all potentially eligible studies were obtained, and two authors independently assessed the eligibility of the full-text reports. DATA COLLECTION AND ANALYSIS Two review authors independently assessed the risk of bias and extracted data from each of the included studies. We contacted the authors of the included studies to obtain missing data. We assessed the methodological quality of studies using the Quality Assessment of Diagnostic Accuracy Studies (QUADAS-2) tool. We estimated a summary receiver operating characteristic (SROC) curve by fitting a hierarchical summary ROC (HSROC) non-linear mixed model. We explored sources of heterogeneity regarding types of PH, methods to estimate the right atrial pressure, and threshold of index test to diagnose PH. All analyses were performed using the Review Manager 5, SAS and STATA statistical software. MAIN RESULTS We included 17 studies (comprising 3656 adult patients) assessing the diagnostic accuracy of Doppler trans-thoracic echocardiography for the diagnosis of PH. The included studies were heterogeneous in terms of patient distribution of age, sex, WHO classification, setting, country, positivity threshold, and year of publication. The prevalence of PH reported in the included studies varied widely (from 6% to 88%). The threshold of index test for PH diagnosis varied widely (from 30 mmHg to 47 mmHg) and was not always prespecified. No study was assigned low risk of bias or low concern in each QUADAS-2 domain assessed. Poor reporting, especially in the index test and reference standard domains, hampered conclusive judgement about the risk of bias. There was little consistency in the thresholds used in the included studies; therefore, common thresholds contained very sparse data, which prevented us from calculating summary points of accuracy estimates. With a fixed specificity of 86% (the median specificity), the estimated sensitivity derived from the median value of specificity using HSROC model was 87% (95% confidence interval [CI]: 78% to 96%). Using a prevalence of PH of 68%, which was the median among the included studies conducted mainly in tertiary hospitals, diagnosing a cohort of 1000 adult patients under suspicion of PH would result in 88 patients being undiagnosed with PH (false negatives) and 275 patients would avoid unnecessary referral for a right-heart catheterisation (true negatives). In addition, 592 of 1000 patients would receive an appropriate and timely referral for a right-heart catheterisation (true positives), while 45 patients would be wrongly considered to have PH (false positives). Conversely, when we assumed low prevalence of PH (10%), as in the case of preoperative examinations for liver transplantation, the number of false negatives and false positives would be 13 and 126, respectively. AUTHORS' CONCLUSIONS Our evidence assessment of echocardiography for the diagnosis of PH in adult patients revealed several limitations. We were unable to determine the average sensitivity and specificity at any particular index test threshold and to explain the observed variability in results. The high heterogeneity of the collected data and the poor methodological quality would constrain the implementation of this result into clinical practice. Further studies relative to the accuracy of Doppler trans-thoracic echocardiography for the diagnosis of PH in adults, that apply a rigorous methodology for conducting diagnostic test accuracy studies, are needed.
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Affiliation(s)
- Yasushi Tsujimoto
- Department of Health Promotion and Human Behavior, Kyoto University Graduate School of Medicine / School of Public Health, Kyoto, Japan
- Department of Nephrology and Dialysis, Kyoritsu Hospital, Kawanishi, Japan
- Scientific Research WorkS Peer Support Group (SRWS-PSG), Osaka, Japan
| | - Junji Kumasawa
- Department of Critical Care Medicine, Department of Clinical Research and Epidemiology, Sakai City Medical Center, Sakai City, Japan
- Human Health Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Sayaka Shimizu
- Department of Healthcare Epidemiology, School of Public Health in the Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yoshio Nakano
- Department of Respiratory Medicine, Sakai City Medical Center, Sakai City, Japan
| | - Yuki Kataoka
- Scientific Research WorkS Peer Support Group (SRWS-PSG), Osaka, Japan
- Department of Internal Medicine, Kyoto Min-Iren Asukai Hospital, Kyoto, Japan
- Department of Healthcare Epidemiology, Kyoto University Graduate School of Medicine / School of Public Health, Kyoto, Japan
| | - Hiraku Tsujimoto
- Hospital Care Research Unit, Hyogo Prefectural Amagasaki General Medical Center, Hyogo, Japan
| | - Michihiko Kono
- Department of Critical Care Medicine, Sakai City Medical Center, Osaka, Japan
| | - Shinji Okabayashi
- Department of Healthcare Epidemiology, School of Public Health in the Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Haruki Imura
- Department of Health Informatics, School of Public Health in Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Takahiro Mizuta
- Department of Dermatology, Tokyo Metropolitan Tama Medical Center, Tokyo, Japan
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Glynn P, Hale S, Hussain T, Freed BH. Cardiovascular Imaging for Systemic Sclerosis Monitoring and Management. Front Cardiovasc Med 2022; 9:846213. [PMID: 35433887 PMCID: PMC9008238 DOI: 10.3389/fcvm.2022.846213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 03/08/2022] [Indexed: 11/23/2022] Open
Abstract
Systemic sclerosis (SSc) is a complex connective tissue disease with multiple clinical and subclinical cardiac manifestations. SSc can affect most structural components of the heart, including the pericardium, myocardium, valves, and conduction system through a damaging cycle of inflammation, ischemia, and fibrosis. While cardiac involvement is the second leading SSc-related cause of death, it is frequently clinically silent in early disease and often missed with routine screening. To facilitate identification of cardiac disease in this susceptible population, we present here a review of cardiac imaging modalities and potential uses in the SSc patient population. We describe well-characterized techniques including electrocardiography and 2D echocardiography with Doppler, but also discuss more advanced imaging approaches, such as speckle-tracking echocardiography, cardiovascular magnetic resonance imaging (CMR), and stress imaging, among others. We also suggest an algorithm for the appropriate application of these modalities in the workup and management of patients with SSc. Finally, we discuss future opportunities for cardiac imaging in SSc research to achieve early detection and to optimize treatment.
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Affiliation(s)
- Peter Glynn
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Sarah Hale
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Tasmeen Hussain
- Division of Hospital Medicine, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Benjamin H. Freed
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
- *Correspondence: Benjamin H. Freed,
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Rallidis LS, Papangelopoulou K, Makavos G, Varounis C, Anthi A, Orfanos SE. Low-Dose Dobutamine Stress Echocardiography for the Early Detection of Pulmonary Arterial Hypertension in Selected Patients with Systemic Sclerosis Whose Resting Echocardiography Is Non-Diagnostic for Pulmonary Hypertension. J Clin Med 2021; 10:jcm10173972. [PMID: 34501420 PMCID: PMC8432002 DOI: 10.3390/jcm10173972] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/21/2021] [Accepted: 08/25/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Dobutamine stress echocardiography (DSE) has limited application in systemic sclerosis (SSc). We examined DSE usefulness in revealing pulmonary arterial hypertension (PAH) in selected SSc patients whose resting echocardiography for pulmonary hypertension (PH) was non-diagnostic. METHODS Forty SSc patients underwent right heart catheterization (RHC) and, simultaneously, low-dose DSE (incremental doses up to 20 μg/kg/min). Inclusion criteria were: preserved left and right ventricular (RV) function (tricuspid annulus plane systolic excursion [TAPSE] ≥ 16 mm and tissue Doppler imaging-derived systolic velocity of tricuspid annulus [RVS'] > 10 cm/s), normal pulmonary function tests, and baseline maximal tricuspid regurgitation (TR) velocity of 2.7-3.2 m/s. RESULTS Of 36 patients who completed DSE, resting RHC diagnosed PAH in 12 patients (33.3%). At 20 μg/kg/min, patients with PAH had higher TR velocity, higher pulmonary arterial pressure measured by RHC, and lower RV inotropic response compared with patients without PAH. A cut-off value of maximal TR velocity >3.1 m/s had a sensitivity of 80%, a specificity of 84.2%, and an accuracy of 82.4% for the detection of PAH. CONCLUSIONS Low-dose DSE has a satisfactory diagnostic accuracy for the early detection of PAH in highly selected SSc patients whose baseline echocardiographic measurements for PH lie in the gray zone.
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Affiliation(s)
- Loukianos S. Rallidis
- Second Department of Cardiology and Pulmonary Hypertension Clinic, Attikon Hospital, School of Medicine, National & Kapodistrian University of Athens, 16462 Athens, Greece; (K.P.); (G.M.); (C.V.)
- Correspondence: ; Tel.: +30-210-992-9106
| | - Konstantina Papangelopoulou
- Second Department of Cardiology and Pulmonary Hypertension Clinic, Attikon Hospital, School of Medicine, National & Kapodistrian University of Athens, 16462 Athens, Greece; (K.P.); (G.M.); (C.V.)
| | - Georgios Makavos
- Second Department of Cardiology and Pulmonary Hypertension Clinic, Attikon Hospital, School of Medicine, National & Kapodistrian University of Athens, 16462 Athens, Greece; (K.P.); (G.M.); (C.V.)
| | - Christos Varounis
- Second Department of Cardiology and Pulmonary Hypertension Clinic, Attikon Hospital, School of Medicine, National & Kapodistrian University of Athens, 16462 Athens, Greece; (K.P.); (G.M.); (C.V.)
| | - Anastasia Anthi
- Second Department of Critical Care and Pulmonary Hypertension Clinic, Attikon Hospital, School of Medicine, National & Kapodistrian University of Athens, 16462 Athens, Greece;
| | - Stylianos E. Orfanos
- First Department of Critical Care and Pulmonary Hypertension Center, Evangelismos General Hospital, Medical School, National & Kapodistrian University of Athens, 10676 Athens, Greece;
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