1
|
Awada C, Boucherat O, Provencher S, Bonnet S, Potus F. The future of group 2 pulmonary hypertension: Exploring clinical trials and therapeutic targets. Vascul Pharmacol 2023; 151:107180. [PMID: 37178949 DOI: 10.1016/j.vph.2023.107180] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 05/04/2023] [Indexed: 05/15/2023]
Abstract
Pulmonary hypertension due to left heart disease (PH-LHD) or group 2 PH is the most common and lethal form of PH, occurring secondary to left ventricular systolic or diastolic heart failure (HF), left-sided valvular diseases, and congenital abnormalities. It is subdivided into isolated postcapillary PH (IpcPH) and combined pre- and post-capillary PH (CpcPH), with the latter sharing many similarities with group 1 PH. CpcPH is associated with worse outcomes and increased morbidity and mortality when compared to IpcPH. Although IpcPH can be improved by treatment of the underlying LHD, CpcPH is an incurable disease for which no specific treatment exists, likely due to the lack of understanding of its underlying mechanisms. Furthermore, drugs approved for PAH are not recommended for group 2 PH, as they are either ineffective or even deleterious. With this major unmet medical need, a better understanding of mechanisms and the identification of effective treatment strategies for this deadly condition are urgently needed. This review presents relevant background of the molecular mechanisms underlying PH-LHD that could translate into innovative therapeutic targets and explores novel targets currently being evaluated in clinical trials.
Collapse
Affiliation(s)
- Charifa Awada
- Pulmonary Hypertension Research Group, Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, QC, Canada
| | - Olivier Boucherat
- Pulmonary Hypertension Research Group, Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, QC, Canada
| | - Steeve Provencher
- Pulmonary Hypertension Research Group, Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, QC, Canada
| | - Sébastien Bonnet
- Pulmonary Hypertension Research Group, Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, QC, Canada
| | - François Potus
- Pulmonary Hypertension Research Group, Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, QC, Canada.
| |
Collapse
|
2
|
Kondratavičienė L, Tamulėnaitė E, Vasylė E, Januškevičius A, Ereminienė E, Malakauskas K, Žemaitis M, Miliauskas S. Changes in Left Heart Geometry, Function, and Blood Serum Biomarkers in Patients with Obstructive Sleep Apnea after Treatment with Continuous Positive Airway Pressure. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:1511. [PMID: 36363468 PMCID: PMC9698941 DOI: 10.3390/medicina58111511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 10/13/2022] [Accepted: 10/20/2022] [Indexed: 11/06/2022]
Abstract
Background: Cardiovascular remodeling is essential in patients with obstructive sleep apnea (OSA), and continuous positive airway pressure (CPAP) therapy could improve these processes. Two-dimensional (2D) speckle-tracking (ST) echocardiography is a useful method for subclinical biventricular dysfunction diagnosis and thus might help as an earlier treatment for OSA patients. It is still not clear which blood serum biomarkers could be used to assess CPAP treatment efficacy. Objectives: To evaluate left heart geometry, function, deformation parameters, and blood serum biomarker (galectin-3, sST2, endothelin-1) levels in patients with OSA, as well as to assess changes after short-term CPAP treatment. Materials and Methods: Thirty-four patients diagnosed with moderate or severe OSA, as well as thirteen patients as a control group, were included in the study. All the subjects were obese (body mass index (BMI) > 30 kg/m2). Transthoracic 2D ST echocardiography was performed before and after 3 months of treatment with CPAP; for the control group, at baseline only. Peripheral blood samples for the testing of biomarkers were collected at the time of study enrolment before the initiation of CPAP therapy and after 3 months of CPAP treatment (blood samples were taken just for OSA group patients). Results: The left ventricle (LV) end-diastolic diameter and volume, as well as LV ejection fraction (EF), did not differ between groups, but an increased LV end-systolic volume and a reduced LV global longitudinal strain (GLS) were found in the OSA group patients (p = 0.015 and p = 0.035, respectively). Indexed by height, higher LV MMi in OSA patients (p = 0.007) and a higher prevalence of LV diastolic dysfunction (p = 0.023) were found in this group of patients. Although left atrium (LA) volume did not differ between groups, OSA group patients had significantly lower LA reservoir strain (p < 0.001). Conventional RV longitudinal and global function parameters (S′, fractional area change (FAC)) did not differ between groups; however, RV GLS was reduced in OSA patients (p = 0.026). OSA patients had a significantly higher right atrium (RA) diameter and mean pulmonary artery pressure (PAP) (p < 0.05). Galectin-3 and sST2 concentrations significantly decreased after 3 months of CPAP treatment. Conclusions: OSA is associated with the left heart remodeling process—increased LV myocardial mass index, LV diastolic dysfunction, reduced LV and RV longitudinal strain, and reduced LA reservoir function. A short-term, 3-months CPAP treatment improves LV global longitudinal strain and LA reservoir function and positively affects blood serum biomarkers. This new indexing system for LV myocardial mass by height helps to identify myocardial structural changes in obese patients with OSA.
Collapse
Affiliation(s)
- Laima Kondratavičienė
- Department of Pulmonology, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
| | - Eglė Tamulėnaitė
- Department of Cardiology, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
| | - Eglė Vasylė
- Laboratory of Pulmonology, Department of Pulmonology, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
| | - Andrius Januškevičius
- Laboratory of Pulmonology, Department of Pulmonology, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
| | - Eglė Ereminienė
- Department of Cardiology, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
| | - Kęstutis Malakauskas
- Department of Pulmonology, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
| | - Marius Žemaitis
- Department of Pulmonology, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
| | - Skaidrius Miliauskas
- Department of Pulmonology, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
| |
Collapse
|
3
|
Chiba Y, Iwano H, Kaga S, Shinkawa M, Murayama M, Ohira H, Ishizaka S, Sarashina M, Tsujinaga S, Yokoyama S, Nakabachi M, Nishino H, Okada K, Kamiya K, Nagai T, Anzai T. Influence of advanced pulmonary vascular remodeling on accuracy of echocardiographic parameters of left ventricular filling pressure. Pulm Circ 2021; 11:2045894020983723. [PMID: 33532058 PMCID: PMC7829463 DOI: 10.1177/2045894020983723] [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: 09/16/2020] [Accepted: 12/07/2020] [Indexed: 01/20/2023] Open
Abstract
Evaluation of left ventricular filling pressure plays an important role in the
clinical management of pulmonary hypertension. However, the accuracy of
echocardiographic parameters for the determination of left ventricular filling
pressure in the presence of pulmonary vascular lesions has not been fully
addressed. We retrospectively investigated 124 patients with pulmonary
hypertension due to pulmonary vascular lesions (noncardiac pulmonary
hypertension group) and 113 patients with ischemic heart disease (control group)
who underwent right heart catheterization and echocardiography. The noncardiac
pulmonary hypertension group was subdivided into less-advanced and advanced
groups according to median pulmonary vascular resistance. Pulmonary artery wedge
pressure was determined as left ventricular filling pressure. As
echocardiographic parameters of left ventricular filling pressure, the ratio of
early- (E) to late-diastolic transmitral flow velocity (E/A), ratio of E to
early-diastolic mitral annular velocity (E/e′), and left atrial volume index
were measured. In the less-advanced noncardiac pulmonary hypertension and
control groups, positive correlations were observed between pulmonary artery
wedge pressure and late-diastolic transmitral flow velocity
(R = 0.41, P = 0.002 and
R = 0.71, P < 0.001, respectively) and left
atrial volume index (R = 0.53, P < 0.001
and R = 0.41, P < 0.001), whereas in the
advanced noncardiac pulmonary hypertension group, pulmonary artery wedge
pressure was only correlated with left atrial volume index
(R = 0.27, P = 0.032). In the controls, only
pulmonary artery wedge pressure determined E (β = 0.48,
P < 0.001), whereas both pulmonary artery wedge pressure and
pulmonary vascular resistance were independent determinants of E (β = 0.29,
P < 0.001 and β = –0.28, P = 0.001,
respectively) in the noncardiac pulmonary hypertension group. In conclusion, in
the presence of advanced pulmonary vascular lesions, conventional
echocardiographic parameters may not accurately reflect left ventricular filling
pressure. Elevated pulmonary vascular resistance would lower the E, even when
pulmonary artery wedge pressure is elevated, resulting in blunting of
echocardiographic parameters for the detection of elevated left ventricular
filling pressure.
Collapse
Affiliation(s)
- Yasuyuki Chiba
- Faculty of Medicine and Graduate School of Medicine, Department of Cardiovascular Medicine, Hokkaido University, Sapporo, Japan
| | - Hiroyuki Iwano
- Faculty of Medicine and Graduate School of Medicine, Department of Cardiovascular Medicine, Hokkaido University, Sapporo, Japan
| | - Sanae Kaga
- Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Mio Shinkawa
- Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Michito Murayama
- Diagnostic Center for Sonography, Hokkaido University Hospital, Sapporo, Japan
| | - Hiroshi Ohira
- Faculty of Medicine and Graduate School of Medicine, Department of Respiratory Medicine, Hokkaido University, Sapporo, Japan
| | - Suguru Ishizaka
- Faculty of Medicine and Graduate School of Medicine, Department of Cardiovascular Medicine, Hokkaido University, Sapporo, Japan
| | - Miwa Sarashina
- Faculty of Medicine and Graduate School of Medicine, Department of Cardiovascular Medicine, Hokkaido University, Sapporo, Japan
| | - Shingo Tsujinaga
- Faculty of Medicine and Graduate School of Medicine, Department of Cardiovascular Medicine, Hokkaido University, Sapporo, Japan
| | - Shinobu Yokoyama
- Division of Clinical Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Masahiro Nakabachi
- Division of Clinical Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Hisao Nishino
- Division of Clinical Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Kazunori Okada
- Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Kiwamu Kamiya
- Faculty of Medicine and Graduate School of Medicine, Department of Cardiovascular Medicine, Hokkaido University, Sapporo, Japan
| | - Toshiyuki Nagai
- Faculty of Medicine and Graduate School of Medicine, Department of Cardiovascular Medicine, Hokkaido University, Sapporo, Japan
| | - Toshihisa Anzai
- Faculty of Medicine and Graduate School of Medicine, Department of Cardiovascular Medicine, Hokkaido University, Sapporo, Japan
| |
Collapse
|
4
|
Todd N, Lai YC. Current Understanding of Circulating Biomarkers in Pulmonary Hypertension Due to Left Heart Disease. Front Med (Lausanne) 2020; 7:570016. [PMID: 33117832 PMCID: PMC7575769 DOI: 10.3389/fmed.2020.570016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 08/31/2020] [Indexed: 01/19/2023] Open
Abstract
Pulmonary hypertension due to left heart disease (PH-LHD; Group 2), especially in the setting of heart failure with preserved ejection fraction (HFpEF), is the most frequent cause of PH. Despite its prevalence, no effective therapies for PH-LHD are available at present. This is largely due to the lack of a concise definition for hemodynamic phenotyping, existence of significant gaps in the understanding of the underlying pathology and the impact of associated comorbidities, as well as the absence of specific biomarkers that can aid in the early diagnosis and management of this challenging syndrome. Currently, B-type natriuretic peptide (BNP) and N-terminal proBNP (NT-proBNP) are guideline-recommended biomarkers for the diagnosis and prognosis of heart failure (HF) and PH. Endothelin-1 (ET-1), vascular endothelial growth factor-D (VEGF-D), and microRNA-206 have also been recently identified as new potential circulating biomarkers for patients with PH-LHD. In this review, we aim to present the current state of knowledge of circulating biomarkers that can be used to guide future research toward diagnosis, refine specific patient phenotype, and develop therapeutic approaches for PH-LHD, with a particular focus on PH-HFpEF. Potential circulating biomarkers identified in pre-clinical models of PH-LHD are also summarized here.
Collapse
Affiliation(s)
- Noah Todd
- Division of Pulmonary, Critical Care, Sleep and Occupational Medicine, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Yen-Chun Lai
- Division of Pulmonary, Critical Care, Sleep and Occupational Medicine, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, United States.,Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, IN, United States
| |
Collapse
|
5
|
Abstract
PURPOSE OF REVIEW The purpose of this review is to review recent literature related to mechanisms and treatment options for 'secondary' (i.e., WHO Groups 3 and 5) pulmonary arterial hypertension (PAH). RECENT FINDINGS Published randomized controlled trials, in general, do not support the use of approved therapies for 'primary' (i.e., WHO Group 1) PAH patients in patients with Group 3 PAH because of the small numbers of patients and inconsistent benefit. Therefore, we currently recommend against the use of these medications for Group 3 PAH. Similarly, there is limited evidence supporting the use of Group 1 PAH medications in Group 5 patients. In most patients with Group 5 PAH, treatment should be directed to the underlying disease. SUMMARY The utility of PAH-specific therapy in WHO Group 3 PAH is unclear because of the small numbers of patients evaluated and inconsistent beneficial effects observed. There is limited evidence supporting the use of PAH medications in Group 5 patients, and they may be harmful in some cases.
Collapse
|
6
|
Philip JL, Murphy TM, Schreier DA, Stevens S, Tabima DM, Albrecht M, Frump AL, Hacker TA, Lahm T, Chesler NC. Pulmonary vascular mechanical consequences of ischemic heart failure and implications for right ventricular function. Am J Physiol Heart Circ Physiol 2019; 316:H1167-H1177. [PMID: 30767670 DOI: 10.1152/ajpheart.00319.2018] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Left heart failure (LHF) is the most common cause of pulmonary hypertension, which confers an increase in morbidity and mortality in this context. Pulmonary vascular resistance has prognostic value in LHF, but otherwise the mechanical consequences of LHF for the pulmonary vasculature and right ventricle (RV) remain unknown. We sought to investigate mechanical mechanisms of pulmonary vascular and RV dysfunction in a rodent model of LHF to address the knowledge gaps in understanding disease pathophysiology. LHF was created using a left anterior descending artery ligation to cause myocardial infarction (MI) in mice. Sham animals underwent thoracotomy alone. Echocardiography demonstrated increased left ventricle (LV) volumes and decreased ejection fraction at 4 wk post-MI that did not normalize by 12 wk post-MI. Elevation of LV diastolic pressure and RV systolic pressure at 12 wk post-MI demonstrated pulmonary hypertension (PH) due to LHF. There was increased pulmonary arterial elastance and pulmonary vascular resistance associated with perivascular fibrosis without other remodeling. There was also RV contractile dysfunction with a 35% decrease in RV end-systolic elastance and 66% decrease in ventricular-vascular coupling. In this model of PH due to LHF with reduced ejection fraction, pulmonary fibrosis contributes to increased RV afterload, and loss of RV contractility contributes to RV dysfunction. These are key pathologic features of human PH secondary to LHF. In the future, novel therapeutic strategies aimed at preventing pulmonary vascular mechanical changes and RV dysfunction in the context of LHF can be tested using this model. NEW & NOTEWORTHY In this study, we investigate the mechanical consequences of left heart failure with reduced ejection fraction for the pulmonary vasculature and right ventricle. Using comprehensive functional analyses of the cardiopulmonary system in vivo and ex vivo, we demonstrate that pulmonary fibrosis contributes to increased RV afterload and loss of RV contractility contributes to RV dysfunction. Thus this model recapitulates key pathologic features of human pulmonary hypertension-left heart failure and offers a robust platform for future investigations.
Collapse
Affiliation(s)
- Jennifer L Philip
- Department of Biomedical Engineering, University of Wisconsin-Madison College of Engineering , Madison, Wisconsin.,Department of Surgery, University of Wisconsin-Madison , Madison, Wisconsin
| | - Thomas M Murphy
- Department of Biomedical Engineering, University of Wisconsin-Madison College of Engineering , Madison, Wisconsin
| | - David A Schreier
- Department of Biomedical Engineering, University of Wisconsin-Madison College of Engineering , Madison, Wisconsin
| | - Sydney Stevens
- Department of Medicine, Indiana University School of Medicine , Indianapolis, Indiana
| | - Diana M Tabima
- Department of Biomedical Engineering, University of Wisconsin-Madison College of Engineering , Madison, Wisconsin
| | - Margie Albrecht
- Department of Medicine, Indiana University School of Medicine , Indianapolis, Indiana
| | - Andrea L Frump
- Department of Medicine, Indiana University School of Medicine , Indianapolis, Indiana
| | - Timothy A Hacker
- Department of Medicine, University of Wisconsin-Madison , Madison, Wisconsin
| | - Tim Lahm
- Department of Medicine, Indiana University School of Medicine , Indianapolis, Indiana.,Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana.,Richard L. Roudebush Veterans Affairs Medical Center , Indianapolis, Indiana
| | - Naomi C Chesler
- Department of Biomedical Engineering, University of Wisconsin-Madison College of Engineering , Madison, Wisconsin.,Department of Medicine, University of Wisconsin-Madison , Madison, Wisconsin
| |
Collapse
|
7
|
Mertens TCJ, Hanmandlu A, Tu L, Phan C, Collum SD, Chen NY, Weng T, Davies J, Liu C, Eltzschig HK, Jyothula SSK, Rajagopal K, Xia Y, Guha A, Bruckner BA, Blackburn MR, Guignabert C, Karmouty-Quintana H. Switching-Off Adora2b in Vascular Smooth Muscle Cells Halts the Development of Pulmonary Hypertension. Front Physiol 2018; 9:555. [PMID: 29910735 PMCID: PMC5992271 DOI: 10.3389/fphys.2018.00555] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 04/30/2018] [Indexed: 11/26/2022] Open
Abstract
Background: Pulmonary hypertension (PH) is a devastating and progressive disease characterized by excessive proliferation of pulmonary artery smooth muscle cells (PASMCs) and remodeling of the lung vasculature. Adenosine signaling through the ADORA2B receptor has previously been implicated in disease progression and tissue remodeling in chronic lung disease. In experimental models of PH associated with chronic lung injury, pharmacological or genetic inhibition of ADORA2B improved markers of chronic lung injury and hallmarks of PH. However, the contribution of ADORA2B expression in the PASMC was not fully evaluated. Hypothesis: We hypothesized that adenosine signaling through the ADORA2B receptor in PASMC mediates the development of PH. Methods: PASMCs from controls and patients with idiopathic pulmonary arterial hypertension (iPAH) were characterized for expression levels of all adenosine receptors. Next, we evaluated the development of PH in ADORA2Bf/f-Transgelin (Tagln)cre mice. These mice or adequate controls were exposed to a combination of SUGEN (SU5416, 20 mg/kg/b.w. IP) and hypoxia (10% O2) for 28 days (HX-SU) or to chronic low doses of bleomycin (BLM, 0.035U/kg/b.w. IP). Cardiovascular readouts including right ventricle systolic pressures (RVSPs), Fulton indices and vascular remodeling were determined. Using PASMCs we identified ADORA2B-dependent mediators involved in vascular remodeling. These mediators: IL-6, hyaluronan synthase 2 (HAS2) and tissue transglutaminase (Tgm2) were determined by RT-PCR and validated in our HX-SU and BLM models. Results: Increased levels of ADORA2B were observed in PASMC from iPAH patients. ADORA2Bf/f-Taglncre mice were protected from the development of PH following HX-SU or BLM exposure. In the BLM model of PH, ADORA2Bf/f- Taglncre mice were not protected from the development of fibrosis. Increased expression of IL-6, HAS2 and Tgm2 was observed in PASMC in an ADORA2B-dependent manner. These mediators were also reduced in ADORA2Bf/f- Taglncre mice exposed to HX-SU or BLM. Conclusions: Our studies revealed ADORA2B-dependent increased levels of IL-6, hyaluronan and Tgm2 in PASMC, consistent with reduced levels in ADORA2Bf/f- Taglncre mice exposed to HX-SU or BLM. Taken together, our data indicates that ADORA2B on PASMC mediates the development of PH through the induction of IL-6, hyaluronan and Tgm2. These studies point at ADORA2B as a therapeutic target to treat PH.
Collapse
Affiliation(s)
- Tinne C J Mertens
- Department of Biochemistry and Molecular Biology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Ankit Hanmandlu
- Department of Biochemistry and Molecular Biology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Ly Tu
- Institut National de la Santé et de la Recherche Médicale UMR_S 999, Le Plessis-Robinson, France.,Université Paris-Sud and Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Carole Phan
- Institut National de la Santé et de la Recherche Médicale UMR_S 999, Le Plessis-Robinson, France.,Université Paris-Sud and Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Scott D Collum
- Department of Biochemistry and Molecular Biology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Ning-Yuan Chen
- Department of Biochemistry and Molecular Biology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Tingting Weng
- Department of Biochemistry and Molecular Biology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Jonathan Davies
- Department of Pediatrics, Baylor College of Medicine, Houston, TX, United States
| | - Chen Liu
- Department of Biochemistry and Molecular Biology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Holger K Eltzschig
- Department of Anesthesiology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Soma S K Jyothula
- Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Keshava Rajagopal
- Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Yang Xia
- Department of Biochemistry and Molecular Biology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Ashrith Guha
- Methodist Debakey Heart and Vascular Center, Houston Methodist Hospital, Houston, TX, United States
| | - Brian A Bruckner
- Methodist Debakey Heart and Vascular Center, Houston Methodist Hospital, Houston, TX, United States
| | - Michael R Blackburn
- Department of Biochemistry and Molecular Biology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Christophe Guignabert
- Institut National de la Santé et de la Recherche Médicale UMR_S 999, Le Plessis-Robinson, France.,Université Paris-Sud and Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Harry Karmouty-Quintana
- Department of Biochemistry and Molecular Biology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, United States
| |
Collapse
|
8
|
Xiong PY, Potus F, Chan W, Archer SL. Models and Molecular Mechanisms of World Health Organization Group 2 to 4 Pulmonary Hypertension. Hypertension 2018; 71:34-55. [PMID: 29158355 PMCID: PMC5777609 DOI: 10.1161/hypertensionaha.117.08824] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Ping Yu Xiong
- From the Department of Medicine and Queen's Cardiopulmonary Unit (QCPU) (P.Y.X., F.P., W.C., S.L.A.) and Biomedical and Molecular Sciences (P.Y.X.), Queen's University, Kingston, Ontario, Canada
| | - Francois Potus
- From the Department of Medicine and Queen's Cardiopulmonary Unit (QCPU) (P.Y.X., F.P., W.C., S.L.A.) and Biomedical and Molecular Sciences (P.Y.X.), Queen's University, Kingston, Ontario, Canada
| | - Winnie Chan
- From the Department of Medicine and Queen's Cardiopulmonary Unit (QCPU) (P.Y.X., F.P., W.C., S.L.A.) and Biomedical and Molecular Sciences (P.Y.X.), Queen's University, Kingston, Ontario, Canada
| | - Stephen L Archer
- From the Department of Medicine and Queen's Cardiopulmonary Unit (QCPU) (P.Y.X., F.P., W.C., S.L.A.) and Biomedical and Molecular Sciences (P.Y.X.), Queen's University, Kingston, Ontario, Canada.
| |
Collapse
|
9
|
Leung EC, Swiston JR, AlAhmari L, AlAhmari T, Huckell VF, Brunner NW. Validity of algorithm for estimating left sided filling pressures on echocardiography in a population referred for pulmonary arterial hypertension. Pulm Circ 2017; 7:2045893217740471. [PMID: 29040057 PMCID: PMC5863863 DOI: 10.1177/2045893217740471] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The determination of LV filling pressure is integral to the diagnosis of pulmonary arterial hypertension (PAH). The American Society of Echocardiography (ASE) has devised algorithms for their estimation. We aimed to test these algorithms in a population referred for suspected PAH. In our retrospective study, we evaluated the accuracy of the ASE Algorithms compared to right heart catheterization done within three months, in patients seen during 2006–2014. All echocardiograms were classified as showing normal, elevated or indeterminate filling pressures. Those with indeterminate pressures were excluded. We evaluated the diagnostic properties of this algorithm to predict a pulmonary artery wedge pressure (PAWP) and left ventricular end diastolic pressure (LVEDP) >15 mmHg. A total of 94 patients were included. The ASE algorithms yielded indeterminate results in 50 (53.2%) patients. This occurred more commonly in older patients and patients with cardiovascular comorbidities. The algorithm had a high sensitivity for predicting an elevated PAWP at 89.5% (95% confidence interval [CI] = 66.9–98.7) and an elevated LVEDP at 100% (95% CI = 76.8–100). The algorithm had a negative predictive value of 81.8% and 100% for predicting an elevated PAWP (95% CI = 52.4–94.8) and LVEDP, respectively, but a poor positive predictive value. The ASE algorithm for predicting LV filling pressures often cannot be applied in populations with suspected PAH. When they are interpretable, they have a high negative predictive value for elevated PAWP and LVEDP. We recommend caution when using these algorithms in populations with suspected PAH.
Collapse
Affiliation(s)
- Eric C Leung
- University of British Columbia, Vancouver, British Columbia
| | - John R Swiston
- University of British Columbia, Vancouver, British Columbia
| | - Leena AlAhmari
- University of British Columbia, Vancouver, British Columbia
| | | | | | | |
Collapse
|
10
|
Lacava G, Zini E, Marchesotti F, Domenech O, Romano F, Manzocchi S, Venco L, Auriemma E. Computed tomography, radiology and echocardiography in cats naturally infected with Aelurostrongylus abstrusus. J Feline Med Surg 2017; 19:446-453. [PMID: 26961678 PMCID: PMC11119652 DOI: 10.1177/1098612x16636419] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objectives The aims of the study were to describe the radiographic and computed tomographic features in cats naturally infected with Aelurostrongylus abstrusus, and to identify signs of pulmonary hypertension with echocardiography. Methods Fourteen cats positive on Baermann test for A abstrusus were included in the study. All cats underwent thoracic radiography, CT and echocardiography. Results The most common clinical signs were coughing (10/14) and dyspnoea (5/14). Radiographic findings included a generalised unstructured interstitial pulmonary pattern (8/14), mixed bronchointerstitioalveolar pattern (3/14) and bronchointerstitial pattern with bronchial wall thickening (3/14). Sternal lymphadenopathy was detected on thoracic radiographs in six cats. On CT, features were mixed bronchointerstitioalveolar pattern with ground-glass appearance in six cats, interstitioalveolar with multiple pulmonary nodules in five, interstitial ground-glass infiltrates in three, regional lymph node enlargement in 11 (10 sternal, three cranial mediastinal and three tracheobronchial lymph nodes) and subpleural thickening in four. None of the thoracic radiographs revealed subpleural thickening. In all cases, pulmonary vessels were normal in terms of size, shape and attenuation on both radiography and CT. Pulmonary hypertension and cardiac abnormalities were not observed in any cat during echocardiography. Conclusions and relevance CT provided a more thorough characterisation of pulmonary and mediastinal lesions compared with thoracic radiographs in cats naturally infected with A abstrusus. Although feline aelurostrongylosis has been previously associated with histopathological lesions in lung arteries, in this cohort clinical evidence of pulmonary hypertension was not documented.
Collapse
Affiliation(s)
- Giuseppe Lacava
- Department of Diagnostic Imaging, Istituto Veterinario di Novara, Novara, Italy
| | - Eric Zini
- Department of Internal Medicine, Istituto Veterinario di Novara, Novara, Italy
- Clinic for Small Animal Internal Medicine, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
- Department of Animal Medicine, Production and Health, University of Padova, Padova, Italy
| | | | - Oriol Domenech
- Department of Cardiology, Istituto Veterinario di Novara, Novara, Italy
| | - Francesca Romano
- Department of Anaesthesiology and Analgesia, Istituto Veterinario di Novara, Novara, Italy
| | | | | | - Edoardo Auriemma
- Department of Diagnostic Imaging, Istituto Veterinario di Novara, Novara, Italy
| |
Collapse
|
11
|
Pulmonary Hypertension Associated with Idiopathic Pulmonary Fibrosis: Current and Future Perspectives. Can Respir J 2017; 2017:1430350. [PMID: 28286407 PMCID: PMC5327768 DOI: 10.1155/2017/1430350] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 01/19/2017] [Indexed: 12/12/2022] Open
Abstract
Pulmonary hypertension (PH) is commonly present in patients with chronic lung diseases such as Chronic Obstructive Pulmonary Disease (COPD) or Idiopathic Pulmonary Fibrosis (IPF) where it is classified as Group III PH by the World Health Organization (WHO). PH has been identified to be present in as much as 40% of patients with COPD or IPF and it is considered as one of the principal predictors of mortality in patients with COPD or IPF. However, despite the prevalence and fatal consequences of PH in the setting of chronic lung diseases, there are limited therapies available for patients with Group III PH, with lung transplantation remaining as the most viable option. This highlights our need to enhance our understanding of the molecular mechanisms that lead to the development of Group III PH. In this review we have chosen to focus on the current understating of PH in IPF, we will revisit the main mediators that have been shown to play a role in the development of the disease. We will also discuss the experimental models available to study PH associated with lung fibrosis and address the role of the right ventricle in IPF. Finally we will summarize the current available treatment options for Group III PH outside of lung transplantation.
Collapse
|
12
|
Mehta S, Vachiéry JL. Pulmonary hypertension: the importance of correctly diagnosing the cause. Eur Respir Rev 2016; 25:372-380. [DOI: 10.1183/16000617.0104-2016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 10/18/2016] [Indexed: 01/22/2023] Open
Abstract
Pulmonary hypertension (PH) is a complex condition that can occur as a result of a wide range of disorders, including left heart disease, lung disease and chronic pulmonary thromboembolism. Contemporary PH patients are older and frequently have a multitude of comorbidities that may contribute to or simply coincide with their PH. Identifying the cause of PH in these complicated patients can be challenging but is essential, given that the aetiology of the disease has a significant impact on the management options available. In this article, we present two cases that highlight the difficulties involved in obtaining a precise diagnosis of the cause of PH within the setting of multiple comorbidities. The importance of performing a comprehensive, multidimensional diagnostic work-up is demonstrated, in addition to the need to specifically consider cardiopulmonary haemodynamic data in the context of the wider clinical picture. The article also illustrates why achieving an accurate diagnosis is necessary for optimal patient management. This may involve treatment of comorbidities as a priority, which can ameliorate the severity of PH, obviating the need to consider PH-targeted medical treatment.
Collapse
|
13
|
Rosenkranz S, Preston IR. Right heart catheterisation: best practice and pitfalls in pulmonary hypertension. Eur Respir Rev 2016; 24:642-52. [PMID: 26621978 DOI: 10.1183/16000617.0062-2015] [Citation(s) in RCA: 120] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Right heart catheterisation (RHC) plays a central role in identifying pulmonary hypertension (PH) disorders, and is required to definitively diagnose pulmonary arterial hypertension (PAH). Despite widespread acceptance, there is a lack of guidance regarding the best practice for performing RHC in clinical practice. In order to ensure the correct evaluation of haemodynamic parameters directly measured or calculated from RHC, attention should be drawn to standardising procedures such as the position of the pressure transducer and catheter balloon inflation volume. Measurement of pulmonary arterial wedge pressure, in particular, is vulnerable to over- or under-wedging, which can give rise to false readings. In turn, errors in RHC measurement and data interpretation can complicate the differentiation of PAH from other PH disorders and lead to misdiagnosis. In addition to diagnosis, the role of RHC in conjunction with noninvasive tests is widening rapidly to encompass monitoring of treatment response and establishing prognosis of patients diagnosed with PAH. However, further standardisation of RHC is warranted to ensure optimal use in routine clinical practice.
Collapse
Affiliation(s)
- Stephan Rosenkranz
- Dept III of Internal Medicine and Cologne Cardiovascular Research Center (CCRC), Cologne University Heart Center, Cologne, Germany
| | - Ioana R Preston
- Pulmonary, Critical Care, and Sleep Division, Tufts Medical Center, Boston, MA, USA
| |
Collapse
|
14
|
|
15
|
Mohsenin V. The emerging role of microRNAs in hypoxia-induced pulmonary hypertension. Sleep Breath 2016; 20:1059-67. [DOI: 10.1007/s11325-016-1351-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 04/11/2016] [Accepted: 04/19/2016] [Indexed: 11/30/2022]
|
16
|
O'Sullivan CJ, Wenaweser P, Ceylan O, Rat-Wirtzler J, Stortecky S, Heg D, Spitzer E, Zanchin T, Praz F, Tüller D, Huber C, Pilgrim T, Nietlispach F, Khattab AA, Carrel T, Meier B, Windecker S, Buellesfeld L. Effect of Pulmonary Hypertension Hemodynamic Presentation on Clinical Outcomes in Patients With Severe Symptomatic Aortic Valve Stenosis Undergoing Transcatheter Aortic Valve Implantation: Insights From the New Proposed Pulmonary Hypertension Classification. Circ Cardiovasc Interv 2016; 8:e002358. [PMID: 26156149 DOI: 10.1161/circinterventions.114.002358] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Pulmonary hypertension (PH) frequently coexists with severe aortic stenosis, and PH severity has been shown to predict outcomes after transcatheter aortic valve implantation (TAVI). The effect of PH hemodynamic presentation on clinical outcomes after TAVI is unknown. METHODS AND RESULTS Of 606 consecutive patients undergoing TAVI, 433 (71.4%) patients with severe aortic stenosis and a preprocedural right heart catheterization were assessed. Patients were dichotomized according to whether PH was present (mean pulmonary artery pressure, ≥25 mm Hg; n=325) or not (n=108). Patients with PH were further dichotomized by left ventricular end-diastolic pressure into postcapillary (left ventricular end-diastolic pressure, >15 mm Hg; n=269) and precapillary groups (left ventricular end-diastolic pressure, ≤15 mm Hg; n=56). Finally, patients with postcapillary PH were divided into isolated (n=220) and combined (n=49) subgroups according to whether the diastolic pressure difference (diastolic pulmonary artery pressure-left ventricular end-diastolic pressure) was normal (<7 mm Hg) or elevated (≥7 mm Hg). Primary end point was mortality at 1 year. PH was present in 325 of 433 (75%) patients and was predominantly postcapillary (n=269/325; 82%). Compared with baseline, systolic pulmonary artery pressure immediately improved after TAVI in patients with postcapillary combined (57.8±14.1 versus 50.4±17.3 mm Hg; P=0.015) but not in those with precapillary (49.0±12.6 versus 51.6±14.3; P=0.36). When compared with no PH, a higher 1-year mortality rate was observed in both precapillary (hazard ratio, 2.30; 95% confidence interval, 1.02-5.22; P=0.046) and combined (hazard ratio, 3.15; 95% confidence interval, 1.43-6.93; P=0.004) but not isolated PH patients (P=0.11). After adjustment, combined PH remained a strong predictor of 1-year mortality after TAVI (hazard ratio, 3.28; P=0.005). CONCLUSIONS Invasive stratification of PH according to hemodynamic presentation predicts acute response to treatment and 1-year mortality after TAVI.
Collapse
Affiliation(s)
- Crochan J O'Sullivan
- From the Department of Cardiology (C.J.O., P.W., O.C., S.S., E.S., T.Z., F.P., T.P., A.A.K., B.M., S.W., L.B.), Clinical Trials Unit (J.R.-W., D.H., S.W.), Institute of Social and Preventive Medicine (J.R.-W., D.H., S.W.), Department of Cardiovascular Surgery (C.H., T.C.), Bern University Hospital, Bern, Switzerland; Department of Cardiology, Stadtspital Triemli, Zürich, Switzerland (C.J.O., D.T.); and Department of Cardiology, University Heart Center, Zürich, Switzerland (F.N.)
| | - Peter Wenaweser
- From the Department of Cardiology (C.J.O., P.W., O.C., S.S., E.S., T.Z., F.P., T.P., A.A.K., B.M., S.W., L.B.), Clinical Trials Unit (J.R.-W., D.H., S.W.), Institute of Social and Preventive Medicine (J.R.-W., D.H., S.W.), Department of Cardiovascular Surgery (C.H., T.C.), Bern University Hospital, Bern, Switzerland; Department of Cardiology, Stadtspital Triemli, Zürich, Switzerland (C.J.O., D.T.); and Department of Cardiology, University Heart Center, Zürich, Switzerland (F.N.)
| | - Osman Ceylan
- From the Department of Cardiology (C.J.O., P.W., O.C., S.S., E.S., T.Z., F.P., T.P., A.A.K., B.M., S.W., L.B.), Clinical Trials Unit (J.R.-W., D.H., S.W.), Institute of Social and Preventive Medicine (J.R.-W., D.H., S.W.), Department of Cardiovascular Surgery (C.H., T.C.), Bern University Hospital, Bern, Switzerland; Department of Cardiology, Stadtspital Triemli, Zürich, Switzerland (C.J.O., D.T.); and Department of Cardiology, University Heart Center, Zürich, Switzerland (F.N.)
| | - Julie Rat-Wirtzler
- From the Department of Cardiology (C.J.O., P.W., O.C., S.S., E.S., T.Z., F.P., T.P., A.A.K., B.M., S.W., L.B.), Clinical Trials Unit (J.R.-W., D.H., S.W.), Institute of Social and Preventive Medicine (J.R.-W., D.H., S.W.), Department of Cardiovascular Surgery (C.H., T.C.), Bern University Hospital, Bern, Switzerland; Department of Cardiology, Stadtspital Triemli, Zürich, Switzerland (C.J.O., D.T.); and Department of Cardiology, University Heart Center, Zürich, Switzerland (F.N.)
| | - Stefan Stortecky
- From the Department of Cardiology (C.J.O., P.W., O.C., S.S., E.S., T.Z., F.P., T.P., A.A.K., B.M., S.W., L.B.), Clinical Trials Unit (J.R.-W., D.H., S.W.), Institute of Social and Preventive Medicine (J.R.-W., D.H., S.W.), Department of Cardiovascular Surgery (C.H., T.C.), Bern University Hospital, Bern, Switzerland; Department of Cardiology, Stadtspital Triemli, Zürich, Switzerland (C.J.O., D.T.); and Department of Cardiology, University Heart Center, Zürich, Switzerland (F.N.)
| | - Dik Heg
- From the Department of Cardiology (C.J.O., P.W., O.C., S.S., E.S., T.Z., F.P., T.P., A.A.K., B.M., S.W., L.B.), Clinical Trials Unit (J.R.-W., D.H., S.W.), Institute of Social and Preventive Medicine (J.R.-W., D.H., S.W.), Department of Cardiovascular Surgery (C.H., T.C.), Bern University Hospital, Bern, Switzerland; Department of Cardiology, Stadtspital Triemli, Zürich, Switzerland (C.J.O., D.T.); and Department of Cardiology, University Heart Center, Zürich, Switzerland (F.N.)
| | - Ernest Spitzer
- From the Department of Cardiology (C.J.O., P.W., O.C., S.S., E.S., T.Z., F.P., T.P., A.A.K., B.M., S.W., L.B.), Clinical Trials Unit (J.R.-W., D.H., S.W.), Institute of Social and Preventive Medicine (J.R.-W., D.H., S.W.), Department of Cardiovascular Surgery (C.H., T.C.), Bern University Hospital, Bern, Switzerland; Department of Cardiology, Stadtspital Triemli, Zürich, Switzerland (C.J.O., D.T.); and Department of Cardiology, University Heart Center, Zürich, Switzerland (F.N.)
| | - Thomas Zanchin
- From the Department of Cardiology (C.J.O., P.W., O.C., S.S., E.S., T.Z., F.P., T.P., A.A.K., B.M., S.W., L.B.), Clinical Trials Unit (J.R.-W., D.H., S.W.), Institute of Social and Preventive Medicine (J.R.-W., D.H., S.W.), Department of Cardiovascular Surgery (C.H., T.C.), Bern University Hospital, Bern, Switzerland; Department of Cardiology, Stadtspital Triemli, Zürich, Switzerland (C.J.O., D.T.); and Department of Cardiology, University Heart Center, Zürich, Switzerland (F.N.)
| | - Fabien Praz
- From the Department of Cardiology (C.J.O., P.W., O.C., S.S., E.S., T.Z., F.P., T.P., A.A.K., B.M., S.W., L.B.), Clinical Trials Unit (J.R.-W., D.H., S.W.), Institute of Social and Preventive Medicine (J.R.-W., D.H., S.W.), Department of Cardiovascular Surgery (C.H., T.C.), Bern University Hospital, Bern, Switzerland; Department of Cardiology, Stadtspital Triemli, Zürich, Switzerland (C.J.O., D.T.); and Department of Cardiology, University Heart Center, Zürich, Switzerland (F.N.)
| | - David Tüller
- From the Department of Cardiology (C.J.O., P.W., O.C., S.S., E.S., T.Z., F.P., T.P., A.A.K., B.M., S.W., L.B.), Clinical Trials Unit (J.R.-W., D.H., S.W.), Institute of Social and Preventive Medicine (J.R.-W., D.H., S.W.), Department of Cardiovascular Surgery (C.H., T.C.), Bern University Hospital, Bern, Switzerland; Department of Cardiology, Stadtspital Triemli, Zürich, Switzerland (C.J.O., D.T.); and Department of Cardiology, University Heart Center, Zürich, Switzerland (F.N.)
| | - Christoph Huber
- From the Department of Cardiology (C.J.O., P.W., O.C., S.S., E.S., T.Z., F.P., T.P., A.A.K., B.M., S.W., L.B.), Clinical Trials Unit (J.R.-W., D.H., S.W.), Institute of Social and Preventive Medicine (J.R.-W., D.H., S.W.), Department of Cardiovascular Surgery (C.H., T.C.), Bern University Hospital, Bern, Switzerland; Department of Cardiology, Stadtspital Triemli, Zürich, Switzerland (C.J.O., D.T.); and Department of Cardiology, University Heart Center, Zürich, Switzerland (F.N.)
| | - Thomas Pilgrim
- From the Department of Cardiology (C.J.O., P.W., O.C., S.S., E.S., T.Z., F.P., T.P., A.A.K., B.M., S.W., L.B.), Clinical Trials Unit (J.R.-W., D.H., S.W.), Institute of Social and Preventive Medicine (J.R.-W., D.H., S.W.), Department of Cardiovascular Surgery (C.H., T.C.), Bern University Hospital, Bern, Switzerland; Department of Cardiology, Stadtspital Triemli, Zürich, Switzerland (C.J.O., D.T.); and Department of Cardiology, University Heart Center, Zürich, Switzerland (F.N.)
| | - Fabian Nietlispach
- From the Department of Cardiology (C.J.O., P.W., O.C., S.S., E.S., T.Z., F.P., T.P., A.A.K., B.M., S.W., L.B.), Clinical Trials Unit (J.R.-W., D.H., S.W.), Institute of Social and Preventive Medicine (J.R.-W., D.H., S.W.), Department of Cardiovascular Surgery (C.H., T.C.), Bern University Hospital, Bern, Switzerland; Department of Cardiology, Stadtspital Triemli, Zürich, Switzerland (C.J.O., D.T.); and Department of Cardiology, University Heart Center, Zürich, Switzerland (F.N.)
| | - Ahmed A Khattab
- From the Department of Cardiology (C.J.O., P.W., O.C., S.S., E.S., T.Z., F.P., T.P., A.A.K., B.M., S.W., L.B.), Clinical Trials Unit (J.R.-W., D.H., S.W.), Institute of Social and Preventive Medicine (J.R.-W., D.H., S.W.), Department of Cardiovascular Surgery (C.H., T.C.), Bern University Hospital, Bern, Switzerland; Department of Cardiology, Stadtspital Triemli, Zürich, Switzerland (C.J.O., D.T.); and Department of Cardiology, University Heart Center, Zürich, Switzerland (F.N.)
| | - Thierry Carrel
- From the Department of Cardiology (C.J.O., P.W., O.C., S.S., E.S., T.Z., F.P., T.P., A.A.K., B.M., S.W., L.B.), Clinical Trials Unit (J.R.-W., D.H., S.W.), Institute of Social and Preventive Medicine (J.R.-W., D.H., S.W.), Department of Cardiovascular Surgery (C.H., T.C.), Bern University Hospital, Bern, Switzerland; Department of Cardiology, Stadtspital Triemli, Zürich, Switzerland (C.J.O., D.T.); and Department of Cardiology, University Heart Center, Zürich, Switzerland (F.N.)
| | - Bernhard Meier
- From the Department of Cardiology (C.J.O., P.W., O.C., S.S., E.S., T.Z., F.P., T.P., A.A.K., B.M., S.W., L.B.), Clinical Trials Unit (J.R.-W., D.H., S.W.), Institute of Social and Preventive Medicine (J.R.-W., D.H., S.W.), Department of Cardiovascular Surgery (C.H., T.C.), Bern University Hospital, Bern, Switzerland; Department of Cardiology, Stadtspital Triemli, Zürich, Switzerland (C.J.O., D.T.); and Department of Cardiology, University Heart Center, Zürich, Switzerland (F.N.)
| | - Stephan Windecker
- From the Department of Cardiology (C.J.O., P.W., O.C., S.S., E.S., T.Z., F.P., T.P., A.A.K., B.M., S.W., L.B.), Clinical Trials Unit (J.R.-W., D.H., S.W.), Institute of Social and Preventive Medicine (J.R.-W., D.H., S.W.), Department of Cardiovascular Surgery (C.H., T.C.), Bern University Hospital, Bern, Switzerland; Department of Cardiology, Stadtspital Triemli, Zürich, Switzerland (C.J.O., D.T.); and Department of Cardiology, University Heart Center, Zürich, Switzerland (F.N.)
| | - Lutz Buellesfeld
- From the Department of Cardiology (C.J.O., P.W., O.C., S.S., E.S., T.Z., F.P., T.P., A.A.K., B.M., S.W., L.B.), Clinical Trials Unit (J.R.-W., D.H., S.W.), Institute of Social and Preventive Medicine (J.R.-W., D.H., S.W.), Department of Cardiovascular Surgery (C.H., T.C.), Bern University Hospital, Bern, Switzerland; Department of Cardiology, Stadtspital Triemli, Zürich, Switzerland (C.J.O., D.T.); and Department of Cardiology, University Heart Center, Zürich, Switzerland (F.N.).
| |
Collapse
|
17
|
Al-Naamani N, Preston IR, Paulus JK, Hill NS, Roberts KE. Pulmonary Arterial Capacitance Is an Important Predictor of Mortality in Heart Failure With a Preserved Ejection Fraction. JACC-HEART FAILURE 2016; 3:467-474. [PMID: 26046840 DOI: 10.1016/j.jchf.2015.01.013] [Citation(s) in RCA: 108] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2015] [Accepted: 01/09/2015] [Indexed: 12/31/2022]
Abstract
OBJECTIVES The purpose of this study was to determine the predictors of mortality in patients with pulmonary hypertension (PH) associated with heart failure with preserved ejection fraction (HFpEF). BACKGROUND PH is commonly associated with HFpEF. The predictors of mortality for patients with these conditions are not well characterized. METHODS In a prospective cohort of patients with right heart catheterization, we identified 73 adult patients who had pulmonary hypertension due to left heart disease (PH-LHD) associated with HFpEF (left ventricular ejection fraction ≥50% by echocardiography); hemodynamically defined as a mean pulmonary artery pressure ≥25 mm Hg and pulmonary artery wedge pressure >15 mm Hg. PH severity was classified according to the diastolic pressure gradient (DPG). Cox proportional hazards ratios were used to estimate the associations between clinical variables and mortality. Receiver-operating characteristic curves were used to evaluate the ability of hemodynamic measurements to predict mortality. RESULTS The mean age for study subjects was 69 ± 12 years and 74% were female. Patients classified as having combined post-capillary PH and pre-capillary PH (DPG ≥7) were not at increased risk of death as compared to patients with isolated post-capillary PH (DPG <7). A baseline pulmonary arterial capacitance (PAC) of <1.1 ml/mm Hg was 91% sensitive in predicting mortality, with better discriminatory ability than DPG, transpulmonary gradient, or pulmonary vascular resistance (area under the curve of 0.73, 0.50, 0.45, and 0.37, respectively). Fifty-seven subjects underwent acute vasoreactivity testing with inhaled nitric oxide. Acute vasodilator response by the Rich or Sitbon criteria was not associated with improved survival. CONCLUSIONS PAC is the best predictor of mortality in our cohort and may be useful in describing phenotypic subgroups among those with PH-LHD associated with HFpEF. Acute vasodilator testing did not predict outcome in our cohort but needs to be further investigated.
Collapse
Affiliation(s)
| | - Ioana R Preston
- Department of Medicine, Tufts Medical Center, Boston, Massachusetts
| | - Jessica K Paulus
- Tufts Clinical and Translational Science Institute, Boston, Massachusetts
| | - Nicholas S Hill
- Department of Medicine, Tufts Medical Center, Boston, Massachusetts
| | - Kari E Roberts
- Department of Medicine, Tufts Medical Center, Boston, Massachusetts.
| |
Collapse
|
18
|
Park S, Yoon HY, Jeung S, Lee NK, Kim MS, Ahn JM, Kim DH, Lee JS. Underrated value of repeated right heart catheterization in pulmonary hypertension with heart failure-a case of persisted pulmonary arterial hypertension after treatment for biventricular failure. J Thorac Dis 2015; 7:E489-92. [PMID: 26623126 DOI: 10.3978/j.issn.2072-1439.2015.10.09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Pulmonary hypertension (PH) is a common complication of left heart disease and its presence in patients with heart failure predicts worse clinical outcomes. Specific agents targeting pulmonary arterial hypertension (PAH) have been developed over the last few years, but the efficacy of these agents in pulmonary hypertension due to left heart disease (PH-LHD) is uncertain. We report a case of idiopathic pulmonary arterial hypertension (IPAH) initially presented with biventricular failure, which was misdiagnosed as PH-LHD. A 31-year-old man who had a history of recurrent hemoptysis was referred to our center with biventricular failure. Right heart catheterization (RHC) showed elevated mean pulmonary arterial pressure (mPAP) and pulmonary capillary wedge pressure (PCWP). He was diagnosed as having PH-LHD, specifically combined post-capillary and precapillary PH (CpcPH). We treated him for 2 years with diuretics, a beta blocker, an angiotensin-converting enzyme (ACE) inhibitor, and sildenafil, which was added to treat CpcPH. A follow-up echocardiography showed that biventricular function had improved, but not PH. A second RHC revealed elevated mPAP and normal PCWP, which made us change the diagnosis to IPAH. In conclusion, it is important to perform repeated RHC in CpcPH patients after the improvement of left heart dysfunction to distinguish CpcPH from IPAH.
Collapse
Affiliation(s)
- Shinhee Park
- 1 Department of Internal Medicine, 2 Department of Cardiology, 3 Center for Pulmonary Hypertension and Venous Thromboembolism, 4 Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hee Young Yoon
- 1 Department of Internal Medicine, 2 Department of Cardiology, 3 Center for Pulmonary Hypertension and Venous Thromboembolism, 4 Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Soomin Jeung
- 1 Department of Internal Medicine, 2 Department of Cardiology, 3 Center for Pulmonary Hypertension and Venous Thromboembolism, 4 Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Nah Kyum Lee
- 1 Department of Internal Medicine, 2 Department of Cardiology, 3 Center for Pulmonary Hypertension and Venous Thromboembolism, 4 Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Min-Seok Kim
- 1 Department of Internal Medicine, 2 Department of Cardiology, 3 Center for Pulmonary Hypertension and Venous Thromboembolism, 4 Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jung-Min Ahn
- 1 Department of Internal Medicine, 2 Department of Cardiology, 3 Center for Pulmonary Hypertension and Venous Thromboembolism, 4 Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Dae-Hee Kim
- 1 Department of Internal Medicine, 2 Department of Cardiology, 3 Center for Pulmonary Hypertension and Venous Thromboembolism, 4 Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jae Seung Lee
- 1 Department of Internal Medicine, 2 Department of Cardiology, 3 Center for Pulmonary Hypertension and Venous Thromboembolism, 4 Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| |
Collapse
|
19
|
Kholdani C, Fares WH, Mohsenin V. Pulmonary hypertension in obstructive sleep apnea: is it clinically significant? A critical analysis of the association and pathophysiology. Pulm Circ 2015; 5:220-7. [PMID: 26064448 DOI: 10.1086/679995] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Accepted: 09/02/2014] [Indexed: 12/15/2022] Open
Abstract
The development of pulmonary hypertension is a poor prognostic sign in patients with obstructive sleep apnea (OSA) and affects both mortality and quality of life. Although pulmonary hypertension in OSA is traditionally viewed as a result of apneas and intermittent hypoxia during sleep, recent studies indicate that neither of these factors correlates very well with pulmonary artery pressure. Human data show that pulmonary hypertension in the setting of OSA is, in large part, due to left heart dysfunction with either preserved or diminished ejection fraction. Longstanding increased left heart filling pressures eventually lead to pulmonary venous hypertension. The combination of hypoxic pulmonary vasoconstriction and pulmonary venous hypertension with abnormal production of mediators will result in vascular cell proliferation and aberrant vascular remodeling leading to pulmonary hypertension. These changes are in many ways similar to those seen in other forms of pulmonary hypertension and suggest shared mechanisms. The majority of patients with OSA do not receive a diagnosis and are undertreated. Appreciating the high prevalence and understanding the mechanisms of pulmonary hypertension in OSA would lead to better recognition and management of the condition.
Collapse
Affiliation(s)
- Cyrus Kholdani
- Section of Pulmonary, Critical Care and Sleep Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Wassim H Fares
- Section of Pulmonary, Critical Care and Sleep Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Vahid Mohsenin
- Section of Pulmonary, Critical Care and Sleep Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| |
Collapse
|
20
|
Alhabeeb W, Idrees MM, Ghio S, Kashour T. Saudi Guidelines on the Diagnosis and Treatment of Pulmonary Hypertension: Pulmonary hypertension due to left heart disease. Ann Thorac Med 2014; 9:S47-55. [PMID: 25076997 PMCID: PMC4114276 DOI: 10.4103/1817-1737.134026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2014] [Accepted: 04/05/2014] [Indexed: 12/30/2022] Open
Abstract
Pulmonary hypertension (PH) due to left heart disease is the most common cause of pulmonary hypertension in the western world. It is classified as WHO PH group II. Different pathophysiologic abnormalities may take place in this condition, including pulmonary venous congestion and vascular remodeling. Despite the high prevalence of WHO group 2 PH, the major focus of research on PH over the past decade has been on WHO group 1 pulmonary arterial hypertension (PAH). Few investigators have focused on WHO group 2 PH; consequently, the pathophysiology of this condition remains poorly understood, and no specific therapy is available. Clinical and translational studies in this area are much needed and have the potential to positively affect large numbers of patients. In this review, we provide a detailed discussion upon the pathophysiology of the disease, the recent updates in classification, and the diagnostic and therapeutic algorithms.
Collapse
Affiliation(s)
- Waleed Alhabeeb
- Department of Cardiology, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Majdy M Idrees
- Pulmonary Medicine, Department of Medicine, Prince Sultan Medical Military City, Riyadh, Kingdom of Saudi Arabia
| | - Stefano Ghio
- Department of Cardiology, Fondazione IR IRCCS Policlinico San Matteo, Pavia, Italy
| | - Tarek Kashour
- Department of Cardiac Sciences, King Fahd Cardiac Center, King Saud University, Riyadh, Kingdom of Saudi Arabia
| |
Collapse
|
21
|
|
22
|
Navaneethan SD, Wehbe E, Heresi GA, Gaur V, Minai OA, Arrigain S, Nally JV, Schold JD, Rahman M, Dweik RA. Presence and outcomes of kidney disease in patients with pulmonary hypertension. Clin J Am Soc Nephrol 2014; 9:855-63. [PMID: 24578332 DOI: 10.2215/cjn.10191013] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
BACKGROUND AND OBJECTIVES Pulmonary hypertension is associated with higher mortality rates. The associations of nondialysis-dependent CKD and all-cause mortality in patients with pulmonary hypertension were studied. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS The study population included those patients who underwent right heart catheterization for confirmation of pulmonary hypertension between 1996 and January 2011. Pulmonary hypertension was defined as the presence of mean pulmonary artery pressure ≥ 25 mmHg at rest measured by right heart catheterization. CKD was defined as the presence of two measurements of eGFR<60 ml/min per 1.73 m(2) 90 days apart. The risk factors associated with CKD as well as the association between CKD and death in those patients with pulmonary hypertension using logistic regression and Cox proportional hazard models were examined. RESULTS Of 1088 patients with pulmonary hypertension, 388 (36%) patients had CKD: 340 patients had stage 3 CKD, and 48 (4%) patients had stage 4 CKD. In the multivariable analysis, older age, higher hemoglobin, and higher mean right atrial pressures were independently associated with CKD. During a median follow-up of 3.2 years (interquartile range=1.5-5.6 years), 559 patients died. After adjusting for relevant covariates, presence of stage 3 CKD (hazard ratio, 1.37; 95% confidence interval, 1.14 to 1.66) and stage 4 CKD (hazard ratio, 2.69; 95% confidence interval, 1.88 to 3.86) was associated with all-cause mortality in those patients with pulmonary hypertension. When eGFR was examined as a continuous measure, a 5 ml/min per 1.73 m(2) lower eGFR was associated with a 5% (95% confidence interval, 1.03 to 1.07) higher hazard for death. This higher risk with CKD was similar irrespective of demographics, left ventricular function, and pulmonary capillary wedge pressure. CONCLUSION In a clinical population referred for right heart catheterization, presence of CKD was associated with higher all-cause mortality in those patients with pulmonary hypertension. Mechanisms that may underlie these associations warrant additional studies.
Collapse
Affiliation(s)
- Sankar D Navaneethan
- Department of Nephrology and Hypertension, Glickman Urological and Kidney Institute,, ‡Respiratory Institute,, §Medicine Institute, and, ‖Quantitative Health Sciences, Cleveland Clinic, Cleveland, Ohio, †Cleveland Clinic Lerner College of Medicine and, ¶Department of Nephrology, Case Western Reserve University, Cleveland, Ohio
| | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Hansdottir S, Gehlbach BK. Response. Chest 2014; 145:420-1. [PMID: 24493529 DOI: 10.1378/chest.13-2519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
|
24
|
Guglin M. Pulmonary Hypertension Drugs Were Never Properly Tested in Heart Failure. Chest 2014; 145:420. [DOI: 10.1378/chest.13-2121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
|
25
|
Hansdottir S, Gehlbach BK. Response. Chest 2014; 145:433. [DOI: 10.1378/chest.13-2694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
|
26
|
Hansdottir S. Response. Chest 2014; 145:413-4. [DOI: 10.1378/chest.13-2157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
|
27
|
Jamous F. Pulmonary Hypertension. Chest 2014; 145:432-3. [DOI: 10.1378/chest.13-2359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
|