1
|
Kayali SM, Dietz BE, Siddiq BS, Ghaly M, Owens TS, Khouzam RN. Chronic thromboembolic pulmonary hypertension and balloon pulmonary angioplasty - Where are we in 2024? Curr Probl Cardiol 2024; 49:102481. [PMID: 38401824 DOI: 10.1016/j.cpcardiol.2024.102481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 02/20/2024] [Indexed: 02/26/2024]
Abstract
Pulmonary endarterectomy (PEA) is the first-line treatment for patients with chronic thromboembolic pulmonary hypertension (CTEPH). However, some patients with CTEPH are considered inoperable, and in the last decade, balloon pulmonary angioplasty (BPA) has emerged as a viable therapeutic option for these patients with prohibitive surgical risk or recurrent pulmonary hypertension following PEA. Numerous international centers have increased their procedural volume of BPA and have reported improvements in pulmonary hemodynamics, patient functional class and right ventricular function. Randomized controlled trials have also demonstrated similar findings. Recent refinements in procedural technique, increased operator experience and advancements in procedural technology have facilitated marked reduction in the risk of complications following BPA. Current guidelines recommend BPA for patients with inoperable CTEPH and persistent pulmonary hypertension following PEA. The pulmonary arterial endothelium plays a vital role in the pathophysiologic development and progression of CTEPH.
Collapse
Affiliation(s)
- Sharif M Kayali
- University of Tennessee Health Sciences Center, Department of Cardiovascular Medicine, Memphis, TN.
| | - Bernhard E Dietz
- University of Tennessee Health Sciences Center, Department of Internal Medicine, Memphis, TN
| | - Bilal S Siddiq
- University of Tennessee Health Sciences Center, College of Medicine, Memphis, TN
| | - Michael Ghaly
- Baptist Memorial Hospital - North Mississippi, Department of Internal Medicine, Oxford, MS
| | - Timothy S Owens
- University of Tennessee Health Sciences Center, College of Medicine, Memphis, TN
| | - Rami N Khouzam
- Interventional Cardiologist at the Grand Strand Medical Center, Myrtle Beach, SC; Professor, School of Medicine, University of South Carolina, Columbia SC; Professor, Edward Via College of Osteopathic Medicine, Blacksburg, VA; Professor, at the Mercer School of Medicine, Savannah, GA; Professor, University of Tennessee College of Medicine, Memphis, TN
| |
Collapse
|
2
|
Chan JCY, Man HSJ, Asghar UM, McRae K, Zhao Y, Donahoe LL, Wu L, Granton J, de Perrot M. Impact of sex on outcome after pulmonary endarterectomy for chronic thromboembolic pulmonary hypertension. J Heart Lung Transplant 2023; 42:1578-1586. [PMID: 37422146 DOI: 10.1016/j.healun.2023.06.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 06/06/2023] [Accepted: 06/07/2023] [Indexed: 07/10/2023] Open
Abstract
BACKGROUND The impact of sex on long-term outcomes after pulmonary endarterectomy (PEA) for chronic thromboembolic pulmonary hypertension (PH) remains unclear. We therefore examined the early and long-term outcome after PEA to determine whether sex had an impact on the risk of residual PH and need for targeted PH medical therapy. METHODS Retrospective study of 401 consecutive patients undergoing PEA at our institution between August 2005 and March 2020 was performed. Primary outcome was the need for targeted PH medical therapy postoperatively. Secondary outcomes included survival and measures of hemodynamic improvement. RESULTS Females (N = 203, 51%) were more likely to have preoperative home oxygen therapy (29.6% vs 11.6%, p < 0.01), and to present with segmental and subsegmental disease compared to males (49.2% vs 21.2%, p < 0.01). Despite similar preoperative values, females had higher postoperative pulmonary vascular resistance (final total pulmonary vascular resistance after PEA, 437 Dynes∙s∙cm-5 vs 324 Dynes∙s∙cm-5 in males, p < 0.01). Although survival at 10 years was not significantly different between sexes (73% in females vs 84% in males, p = 0.08), freedom from targeted PH medical therapy was lower in females (72.9% vs 89.9% in males at 5 years, p < 0.001). Female sex remained an independent factor affecting the need for targeted PH medical therapy after PEA in multivariate analysis (HR 2.03, 95%CI 1.03-3.98, p = 0.04). CONCLUSIONS Although outcomes are excellent for both sexes, females had greater need for targeted PH medical therapy in the long-term. Early reassessment and long-term follow-up of these patients are important. Further investigations into possible mechanisms to explain the differences are warranted.
Collapse
Affiliation(s)
- Justin C Y Chan
- Division of Thoracic Surgery, University Health Network, Toronto, Ontario, Canada; Department of Cardiothoracic Surgery, New York University Langone Health, New York, New York
| | - H S Jeffrey Man
- Department of Respirology and Critical Care Medicine, University Health Network, Toronto, Ontario, Canada; Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Usman M Asghar
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Karen McRae
- Department of Anaesthesia and Pain Medicine, University Health Network, Toronto, Ontario, Canada
| | - Yidan Zhao
- Division of Thoracic Surgery, University Health Network, Toronto, Ontario, Canada
| | - Laura L Donahoe
- Division of Thoracic Surgery, University Health Network, Toronto, Ontario, Canada
| | - Licun Wu
- Division of Thoracic Surgery, University Health Network, Toronto, Ontario, Canada
| | - John Granton
- Department of Respirology and Critical Care Medicine, University Health Network, Toronto, Ontario, Canada
| | - Marc de Perrot
- Division of Thoracic Surgery, University Health Network, Toronto, Ontario, Canada.
| |
Collapse
|
3
|
Yang J, Madani MM, Mahmud E, Kim NH. Evaluation and Management of Chronic Thromboembolic Pulmonary Hypertension. Chest 2023; 164:490-502. [PMID: 36990148 PMCID: PMC10410247 DOI: 10.1016/j.chest.2023.03.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 03/11/2023] [Accepted: 03/21/2023] [Indexed: 03/30/2023] Open
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is a treatable form of pulmonary hypertension and right heart failure. CTEPH (group 4 pulmonary hypertension) is caused by persistent organized thromboembolic obstruction of the pulmonary arteries from incompletely resolved acute pulmonary embolism. CTEPH also may present without prior VTE history, which can contribute to its underrecognition. The true incidence of CTEPH is unclear, but is estimated to be approximately 3% after acute pulmonary embolism. V˙/Q˙ scintigraphy is the best screening test for CTEPH, with CT scan imaging and other advanced imaging methods now playing a larger role in disease detection and confirmation. Perfusion defects on V˙/Q˙ scintigraphy in the setting of pulmonary hypertension are suggestive of CTEPH, but pulmonary angiography and right heart catheterization are required for confirmation and treatment planning. CTEPH potentially is curative with pulmonary thromboendarterectomy surgery, with mortality rates of approximately 2% at expert centers. Advances in operative techniques are allowing more distal endarterectomies to be performed successfully with favorable outcomes. However, more than one-third of patients may be considered inoperable. Although these patients previously had minimal therapeutic options, effective treatments now are available with pharmacotherapy and balloon pulmonary angioplasty. Diagnosis of CTEPH should be considered in all patients with suspicion of pulmonary hypertension. Treatments for CTEPH have advanced with improvements in outcomes for both operable and inoperable patients. Therapy should be tailored based on multidisciplinary team evaluation to ensure optimal treatment response.
Collapse
Affiliation(s)
- Jenny Yang
- Division of Pulmonary, Critical Care, Sleep Medicine, University of California, San Diego, La Jolla, CA
| | - Michael M Madani
- Division of Cardiovascular and Thoracic Surgery, University of California, San Diego, La Jolla, CA
| | - Ehtisham Mahmud
- Division of Cardiovascular Medicine, University of California, San Diego, La Jolla, CA
| | - Nick H Kim
- Division of Pulmonary, Critical Care, Sleep Medicine, University of California, San Diego, La Jolla, CA.
| |
Collapse
|
4
|
Ishida K, Kohno H, Matsuura K, Watanabe M, Sugiura T, Jujo Sanada T, Naito A, Shigeta A, Suda R, Sekine A, Masuda M, Sakao S, Tanabe N, Tatsumi K, Matsumiya G. Modification of pulmonary endarterectomy to prevent neurologic adverse events. Surg Today 2023; 53:369-378. [PMID: 36018416 DOI: 10.1007/s00595-022-02573-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 07/16/2022] [Indexed: 10/15/2022]
Abstract
PURPOSE Neurologic adverse events (NAEs) are a major complication after pulmonary endarterectomy (PEA) performed under periods of deep hypothermic circulatory arrest (HCA) for chronic thromboembolic pulmonary hypertension. We modified the PEA strategy to prevent NAEs and evaluated the effectiveness of these modifications. METHODS We reviewed the surgical outcomes of 87 patients divided into the following three groups based on the surgical strategy used: group S (n = 49), periods of deep HCA with alpha-stat strategy; group M1 (n = 19), deep HCA with modifications of slower cooling and rewarming rates and the pH-stat strategy for cooling: and group M2 (n = 13), multiple short periods of moderate HCA. RESULTS PEA provided significant improvement of pulmonary hemodynamics in each group. Sixteen (29%) of the 49 group S patients suffered NAEs, associated with total circulatory arrest time (cutoff, 57 min) and Jamieson type I disease. The Group M1 and M2 patients did not suffer NAEs, although the group M1 patients had prolonged cardiopulmonary bypass (CPB) and more frequent respiratory failure. CONCLUSIONS NAEs were common after PEA performed under periods of deep HCA. The modified surgical strategy could decrease the risk of NAEs but increase the risk of respiratory failure. Multiple short periods of moderate HCA may be useful for patients at risk of NAEs.
Collapse
Affiliation(s)
- Keiichi Ishida
- Department of Cardiovascular Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan.
| | - Hiroki Kohno
- Department of Cardiovascular Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Kaoru Matsuura
- Department of Cardiovascular Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Michiko Watanabe
- Department of Cardiovascular Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Toshihiko Sugiura
- Department of Respirology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Takayuki Jujo Sanada
- Department of Respirology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Akira Naito
- Department of Respirology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Ayako Shigeta
- Department of Respirology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Rika Suda
- Department of Respirology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Ayumi Sekine
- Department of Respirology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Masahisa Masuda
- Department of Cardiovascular Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Seiichiro Sakao
- Department of Respirology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Nobuhiro Tanabe
- Department of Respirology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Koichiro Tatsumi
- Department of Respirology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| | - Goro Matsumiya
- Department of Cardiovascular Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8677, Japan
| |
Collapse
|
5
|
Hashimoto H, Soma T, Mizumura S, Kokubo T, Nakanishi R, Ikeda T. Evaluation of lung perfusion by using lung perfusion SPECT and lung CT with breathing synchronization software. Eur J Hybrid Imaging 2022; 6:32. [DOI: 10.1186/s41824-022-00154-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Accepted: 10/17/2022] [Indexed: 11/26/2022] Open
Abstract
Abstract
Background
Lung perfusion using 99mTc-macroaggregated albumin single-photon emission computed tomography (SPECT) and lung computed tomography (CT) is a useful modality for identifying patients with pulmonary artery embolism. However, conformity between SPECT and CT at the bottom of the lung is generally low. This study aims to investigate the progression of conformity between lung perfusion SPECT and lung CT using a breathing synchronization software.
Methods
Among 95 consecutive patients who underwent lung perfusion SPECT and lung CT within 14 days because of suspected pulmonary embolism between June 2019 and August 2020 in department of cardiovascular medicine, we identified 28 patients (73 ± 10 years) who had normal pulmonary artery on contrast lung CT. We compared lung volumes calculated using lung perfusion SPECT and lung CT as gold standard. Visual conformity between lung SPECT and lung CT was scored 0–4 (0: 0–25%, 1: 25–50%, 2: 50–75%, 3: 75–90%, 4: > 90%) by two specialists in nuclear medicine and assessed.
Results
The lung volume calculated from lung CT was 3749 ± 788 ml. The lung volume calculated from lung perfusion SPECT without using the breathing synchronization software was 3091 ± 610 ml. There was a significant difference between the lung volume calculated from CT and SPECT without using the breathing synchronization software (P < 0.01). The lung volume calculated from lung perfusion SPECT using the breathing synchronization software was 3435 ± 686 ml, and there was no significant difference between the lung volume calculated from CT and SPECT using the breathing synchronization software. The visual score improved with the use of breathing synchronization software (without software; 1.9 ± 0.6 vs. with software; 3.4 ± 0.7, P < 0.001).
Conclusion
This study demonstrated that the breathing synchronization software could improve conformity between lung perfusion SPECT and lung CT.
Collapse
|
6
|
Sakamoto H, Goda A, Tobita K, Takeuchi K, Kikuchi H, Inami T, Tamura Y, Kohno T, Yamada S, Soejima K, Satoh T. EmPHasis-10 Health-Related Quality of Life and Exercise Capacity in Chronic Thromboembolic Pulmonary Hypertension After Balloon Angioplasty. J Am Heart Assoc 2022; 11:e026400. [PMID: 36056723 PMCID: PMC9496401 DOI: 10.1161/jaha.122.026400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Background Whether pulmonary hemodynamic parameters and functional capacity are associated with quality of life in patients with chronic thromboembolic pulmonary hypertension remains unknown. This study aimed to evaluate disease‐specific quality of life using the emPHasis‐10 questionnaire and assess its determinants in patients with chronic thromboembolic pulmonary hypertension with normalized pulmonary hemodynamics. Methods and Results This cross‐sectional study included 187 health status assessments of 143 patients with chronic thromboembolic pulmonary hypertension (median age, 68 [58–75] years; men/women, 51/136; use of home oxygen therapy, 51 patients [27%]) after balloon pulmonary angioplasty with normalized mean pulmonary artery pressure <25 mm Hg at rest. Right heart catheterization was performed, followed by assessment of 6‐minute walk distance and the emPHasis‐10 questionnaire. The median pulmonary artery pressure and pulmonary vascular resistance were 18 (15–21) mm Hg and 2.2 (1.7–2.9) wood units, respectively. The median emPHasis‐10 score was 14 (8–24), whereas the median 6‐minute walk distance was 447 (385–517) m. Univariate linear regression analysis showed that the emPHasis‐10 score was associated with 6‐minute walk distance (β=−0.476 [95% CI −0.604, −0.348], P<0.001) and home oxygen therapy (β=0.214 [95% CI, 0.072, 0.356], P=0.003) but not with hemodynamic parameters. Multiple regression analysis revealed that a higher emPHasis‐10 score was associated with lower 6‐minute walk distance (β=−0.475 [95% CI, −0.631 to −0.319], P<0.001). Conclusions Health‐related quality of life was associated with exercise capacity and the use of home oxygen therapy, but not with hemodynamic parameters, in patients with chronic thromboembolic pulmonary hypertension and normalized hemodynamics after balloon pulmonary angioplasty. Improvements in exercise capacity may lead to further improvements in quality of life.
Collapse
Affiliation(s)
- Hayato Sakamoto
- Department of Rehabilitation Kyorin University Hospital Tokyo Japan
| | - Ayumi Goda
- Department of Cardiovascular Medicine Kyorin University Hospital Tokyo Japan
| | - Kazuki Tobita
- Department of Rehabilitation Kyorin University Hospital Tokyo Japan
| | - Kaori Takeuchi
- Department of Cardiovascular Medicine Kyorin University Hospital Tokyo Japan
| | - Hanako Kikuchi
- Department of Cardiovascular Medicine Kyorin University Hospital Tokyo Japan
| | - Takumi Inami
- Department of Cardiovascular Medicine Kyorin University Hospital Tokyo Japan
| | - Yuichi Tamura
- Pulmonary Hypertension Center International University of Health and Welfare Mita Hospital Tokyo Japan
| | - Takashi Kohno
- Department of Cardiovascular Medicine Kyorin University Hospital Tokyo Japan
| | - Shin Yamada
- Department of Rehabilitation Kyorin University Hospital Tokyo Japan
| | - Kyoko Soejima
- Department of Cardiovascular Medicine Kyorin University Hospital Tokyo Japan
| | - Toru Satoh
- Department of Cardiovascular Medicine Kyorin University Hospital Tokyo Japan
| |
Collapse
|
7
|
Opitz I, Patella M, Lauk O, Inci I, Bettex D, Horisberger T, Schüpbach R, Keller DI, Frauenfelder T, Kucher N, Granton J, Pfammatter T, de Perrot M, Ulrich S. Acute on Chronic Thromboembolic Pulmonary Hypertension: Case Series and Review of Management. J Clin Med 2022; 11:jcm11144224. [PMID: 35887991 PMCID: PMC9317831 DOI: 10.3390/jcm11144224] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 07/15/2022] [Accepted: 07/16/2022] [Indexed: 02/04/2023] Open
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is a distinct form of precapillary pulmonary hypertension classified as group 4 by the World Symposium on Pulmonary Hypertension (WSPH) and should be excluded during an episode of acute pulmonary embolism (PE). Patients presenting to emergency departments with sudden onset of signs and symptoms of acute PE may already have a pre-existing CTEPH condition decompensated by the new PE episode. Identifying an underlying and undiagnosed CTEPH during acute PE, while challenging, is an important consideration as it will alter the patients’ acute and long-term management. Differential diagnosis and evaluation require an interdisciplinary expert team. Analysis of the clinical condition, the CT angiogram, and the hemodynamic situation are important considerations; patients with CTEPH usually have significantly higher sPAP at the time of index PE, which is unusual and unattainable in the context of acute PE and a naïve right ventricle. The imaging may reveal signs of chronic disease such as right ventricle hypertrophy bronchial collaterals and atypical morphology of the thrombus. There is no standard for the management of acute on chronic CTEPH. Herein, we provide a diagnostic and management algorithm informed by several case descriptions and a review of the literature.
Collapse
Affiliation(s)
- Isabelle Opitz
- Department of Thoracic Surgery, University Hospital Zurich, 8091 Zurich, Switzerland; (M.P.); (O.L.); (I.I.)
- Correspondence: ; Tel.: +41-44-255-88-01
| | - Miriam Patella
- Department of Thoracic Surgery, University Hospital Zurich, 8091 Zurich, Switzerland; (M.P.); (O.L.); (I.I.)
| | - Olivia Lauk
- Department of Thoracic Surgery, University Hospital Zurich, 8091 Zurich, Switzerland; (M.P.); (O.L.); (I.I.)
| | - Ilhan Inci
- Department of Thoracic Surgery, University Hospital Zurich, 8091 Zurich, Switzerland; (M.P.); (O.L.); (I.I.)
| | - Dominique Bettex
- Institute of Anaesthesiology, University Hospital Zurich, 8091 Zurich, Switzerland; (D.B.); (T.H.)
| | - Thomas Horisberger
- Institute of Anaesthesiology, University Hospital Zurich, 8091 Zurich, Switzerland; (D.B.); (T.H.)
| | - Reto Schüpbach
- Institute for Intensive Care Medicine, University Hospital Zurich, 8091 Zurich, Switzerland;
| | - Dagmar I. Keller
- Emergency Department, University Hospital Zurich, 8091 Zurich, Switzerland;
| | - Thomas Frauenfelder
- Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland; (T.F.); (T.P.)
| | - Nils Kucher
- Clinic of Angiology, University Hospital Zurich, 8091 Zurich, Switzerland;
| | - John Granton
- Division of Respirology, University Health Network, Toronto, ON M5G 2C4, Canada;
| | - Thomas Pfammatter
- Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland; (T.F.); (T.P.)
| | - Marc de Perrot
- Division of Thoracic Surgery, Department of Surgery, University of Toronto, Toronto General Hospital, Toronto, ON M5G 2C4, Canada;
| | - Silvia Ulrich
- Department of Pulmonology, University Hospital Zurich, 8091 Zurich, Switzerland;
| |
Collapse
|
8
|
Fernandes CJCDS, Ota-Arakaki JS, Campos FTAF, Correa RDA, Gazzana MB, Jardim CVP, Jatene FB, Alves JL, Ramos RP, Tannus D, Teles C, Terra M, Waetge D, Souza R. Brazilian Thoracic Society recommendations for the diagnosis and treatment of chronic thromboembolic pulmonary hypertension. J Bras Pneumol 2022; 46:e20200204. [PMID: 35766678 PMCID: PMC9233986 DOI: 10.36416/1806-3756/e20200204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 05/22/2020] [Indexed: 11/17/2022] Open
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is a serious and debilitating disease caused by occlusion of the pulmonary arterial bed by hematic emboli and by the resulting fibrous material. Such occlusion increases vascular resistance and, consequently, the pressure in the region of the pulmonary artery, which is the definition of pulmonary hypertension. The increased load imposed on the right ventricle leads to its progressive dysfunction and, finally, to death. However, CTEPH has a highly significant feature that distinguishes it from other forms of pulmonary hypertension: the fact that it can be cured through treatment with pulmonary thromboendarterectomy. Therefore, the primary objective of the management of CTEPH should be the assessment of patient fitness for surgery at a referral center, given that not all patients are good candidates. For the patients who are not good candidates for pulmonary thromboendarterectomy, the viable therapeutic alternatives include pulmonary artery angioplasty and pharmacological treatment. In these recommendations, the pathophysiological bases for the onset of CTEPH, such as acute pulmonary embolism and the clinical condition of the patient, will be discussed, as will the diagnostic algorithm to be followed and the therapeutic alternatives currently available.
Collapse
Affiliation(s)
- Caio Julio Cesar dos Santos Fernandes
- . Grupo de Circulação Pulmonar, Divisão de Cardiopneumologia, Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
| | - Jaquelina Sonoe Ota-Arakaki
- . Disciplina de Pneumologia. Hospital São Paulo, Escola Paulista de Medicina. Universidade Federal de São Paulo, São Paulo (SP) Brasil
| | | | - Ricardo de Amorim Correa
- . Serviço de Pneumologia e Cirurgia Torácica, Hospital das Clínicas, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte (MG) Brasil
| | - Marcelo Basso Gazzana
- . Serviço de Pneumologia, Hospital de Clínicas de Porto Alegre, Porto Alegre (RS) Brasil
| | - Carlos Vianna Poyares Jardim
- . Grupo de Circulação Pulmonar, Divisão de Cardiopneumologia, Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
| | - Fábio Biscegli Jatene
- . Grupo de Circulação Pulmonar, Divisão de Cardiopneumologia, Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
| | - Jose Leonidas Alves
- . Grupo de Circulação Pulmonar, Divisão de Cardiopneumologia, Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
| | - Roberta Pulcheri Ramos
- . Disciplina de Pneumologia. Hospital São Paulo, Escola Paulista de Medicina. Universidade Federal de São Paulo, São Paulo (SP) Brasil
| | - Daniela Tannus
- . Hospital das Clínicas, Faculdade de Medicina, Universidade Federal de Goiás, Goiânia (GO) Brasil
| | - Carlos Teles
- . Disciplina de Pneumologia. Hospital São Paulo, Escola Paulista de Medicina. Universidade Federal de São Paulo, São Paulo (SP) Brasil
| | - Mario Terra
- . Grupo de Circulação Pulmonar, Divisão de Cardiopneumologia, Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
| | - Daniel Waetge
- . Disciplina de Pneumologia, Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro (RJ) Brasil
| | - Rogerio Souza
- . Grupo de Circulação Pulmonar, Divisão de Cardiopneumologia, Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
| |
Collapse
|
9
|
Boehm PM, Schwarz S, Thanner J, Veraar C, Gerges M, Gerges C, Lang I, Apfaltrer P, Prosch H, Taghavi S, Klepetko W, Ankersmit HJ, Moser B. Larger pulmonary artery to ascending aorta ratios are associated with decreased survival of patients undergoing pulmonary endarterectomy. JTCVS OPEN 2022; 10:62-72. [PMID: 36004247 PMCID: PMC9390379 DOI: 10.1016/j.xjon.2022.02.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 02/17/2022] [Indexed: 11/25/2022]
Abstract
Objectives The ratio of pulmonary artery (PA) and ascending aorta (AA) diameters has recently been shown to be a useful indicator for disease severity and predictor of outcome in patients with pulmonary hypertension and heart failure. This study aimed at evaluating the applicability of this ratio for perioperative risk assessment of patients with chronic thromboembolic pulmonary hypertension undergoing pulmonary endarterectomy. Methods In this retrospective cohort study on 149 patients undergoing pulmonary endarterectomy between 2013 and 2020, the preoperative PA to AA ratio was analyzed on axial computed tomography. Variables of pulmonary hemodynamic status were assessed during preoperative right heart catheterization and postoperative Swan-Ganz catheter measurements. Perioperative survival was analyzed by Kaplan-Meier method and log-rank tests. Results Preoperative computed tomography measurements showed a median AA diameter of 31 mm (range, 19-47 mm), and a median PA diameter of 36 mm (range, 25-55 mm). The calculated median PA to AA ratio was 1.13 (range, 0.79-1.80). PA to AA ratio correlated positively with PA pressure (systolic, r = 0.352 [P < .001]; diastolic, r = 0.406 [P < .001]; mean, r = 0.318 [P < .001]) and inversely with age (r = −0.484 [P < .001]). Univariable Cox regression analysis identified PA diameter (P = .008) as a preoperative parameter predictive of survival. There was a significant difference (log-rank P = .037) in 30-day survival probability for patients with lower PA to AA ratios (<1.136; survival probability, 97.4%) compared with patients with higher ratios (>1.136; survival probability, 88.9%). Conclusions PA to AA ratio shows a correlation with other variables associated with pulmonary hypertension. In addition, patients with higher PA to AA ratios have lower survival probabilities after PEA. Further analysis of PA to AA ratio on the selection of chronic thromboembolic pulmonary hypertension for different treatment modalities—pulmonary endarterectomy, medical therapy, and or balloon pulmonary angioplasty—is warranted.
Collapse
Affiliation(s)
- Panja M. Boehm
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Stefan Schwarz
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Jürgen Thanner
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Cecilia Veraar
- Division of Cardiac Thoracic Vascular Anesthesia and Intensive Care Medicine, Department of Anesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
| | - Mario Gerges
- Division of Cardiology, Department of Medicine II, Medical University of Vienna, Vienna, Austria
| | - Christian Gerges
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Irene Lang
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Paul Apfaltrer
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Helmut Prosch
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Shahrokh Taghavi
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Walter Klepetko
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | | | - Bernhard Moser
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
- Address for reprints: Bernhard Moser, MD, PhD, MBA, Department of Thoracic Surgery, Medical University of Vienna, Austria, Waehringer Guertel 18-20, 1090 Vienna, Austria.
| |
Collapse
|
10
|
Martin-Suarez S, Loforte A, Cavalli GG, Gliozzi G, Botta L, Mariani C, Orioli V, Votano D, Costantino A, Santamaria V, Tassi S, Fiaschini C, Campanini F, Palazzini M, Rossi B, Barbera NA, Niro F, Manes A, Saia F, Dardi F, Galiè N, Pacini D. Therapeutic alternatives in chronic thromboembolic pulmonary hypertension: from pulmonary endarterectomy to balloon pulmonary angioplasty to medical therapy. State of the art from a multidisciplinary team. Ann Cardiothorac Surg 2022; 11:120-127. [PMID: 35433353 PMCID: PMC9012190 DOI: 10.21037/acs-2021-pte-23] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 02/02/2022] [Indexed: 08/26/2023]
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is a rare disease with a very complex pathophysiology differing from other causes of pulmonary hypertension (PH). It is an infrequent consequence of acute pulmonary embolism that is frequently misdiagnosed. Pathogenesis has been related to coagulation abnormalities, infection or inflammation, although these disturbances can be absent in many cases. The hallmarks of CTEPH are thrombotic occlusion of pulmonary vessels, variable degree of ventricular dysfunction and secondary microvascular arteriopathy. The definition of CTEPH also includes an increase in mean pulmonary arterial pressure of more than 25 mmHg with a normal pulmonary capillary wedge of less than 15 mmHg. It is classified as World Health Organization group 4 PH, and is the only type that can be surgically cured by pulmonary endarterectomy (PEA). This operation needs to be carried out by a team with strong expertise, from the diagnostic and decisional pathway to the operation itself. However, because the disease has a very heterogeneous phenotype in terms of anatomy, degree of PH and the lack of a standard patient profile, not all cases of CTEPH can be treated by PEA. As a result, PH-directed medical therapy traditionally used for the other types of PH has been proposed and is utilized in CTEPH patients. Since 2015, we have been witnessing the rebirth of balloon pulmonary angioplasty, a technique first performed in 2001 but has since fallen out fashion due to major complications. The refinement of such techniques has allowed its safe utilization as a salvage therapy in inoperable patients. In the present keynote lecture, we will describe these therapeutic approaches and results.
Collapse
Affiliation(s)
- Sofia Martin-Suarez
- Cardiac Surgery Unit, Cardio Thoracic and Vascular Department, S.Orsola Hospital IRCCS, Bologna University, Bologna, Italy
| | - Antonio Loforte
- Cardiac Surgery Unit, Cardio Thoracic and Vascular Department, S.Orsola Hospital IRCCS, Bologna University, Bologna, Italy
| | - Giulio Giovanni Cavalli
- Cardiac Surgery Unit, Cardio Thoracic and Vascular Department, S.Orsola Hospital IRCCS, Bologna University, Bologna, Italy
| | - Gregorio Gliozzi
- Cardiac Surgery Unit, Cardio Thoracic and Vascular Department, S.Orsola Hospital IRCCS, Bologna University, Bologna, Italy
| | - Luca Botta
- Cardiac Surgery Unit, Cardio Thoracic and Vascular Department, S.Orsola Hospital IRCCS, Bologna University, Bologna, Italy
| | - Carlo Mariani
- Cardiac Surgery Unit, Cardio Thoracic and Vascular Department, S.Orsola Hospital IRCCS, Bologna University, Bologna, Italy
| | - Valentina Orioli
- Cardiac Surgery Unit, Cardio Thoracic and Vascular Department, S.Orsola Hospital IRCCS, Bologna University, Bologna, Italy
| | - Daniela Votano
- Cardiac Surgery Unit, Cardio Thoracic and Vascular Department, S.Orsola Hospital IRCCS, Bologna University, Bologna, Italy
| | - Antonino Costantino
- Cardiac Surgery Unit, Cardio Thoracic and Vascular Department, S.Orsola Hospital IRCCS, Bologna University, Bologna, Italy
| | - Valeria Santamaria
- Cardiac Surgery Unit, Cardio Thoracic and Vascular Department, S.Orsola Hospital IRCCS, Bologna University, Bologna, Italy
| | - Sara Tassi
- Cardiac Surgery Unit, Cardio Thoracic and Vascular Department, S.Orsola Hospital IRCCS, Bologna University, Bologna, Italy
| | - Costanza Fiaschini
- Cardiac Surgery Unit, Cardio Thoracic and Vascular Department, S.Orsola Hospital IRCCS, Bologna University, Bologna, Italy
| | - Francesco Campanini
- Cardiac Surgery Unit, Cardio Thoracic and Vascular Department, S.Orsola Hospital IRCCS, Bologna University, Bologna, Italy
| | - Massimiliano Palazzini
- Cardiology Unit, Cardio Thoracic and Vascular Department, S.Orsola Hospital IRCCS, Bologna University, Bologna, Italy
| | - Barbara Rossi
- Cardiac Anaesthesia Unit, Cardio Thoracic and Vascular Department, S.Orsola Hospital IRCCS, Bologna University, Bologna, Italy
| | - Nicolò Antonino Barbera
- Cardiac Anaesthesia Unit, Cardio Thoracic and Vascular Department, S.Orsola Hospital IRCCS, Bologna University, Bologna, Italy
| | - Fabio Niro
- Cardiovascular Radiology Unit, Cardio Thoracic and Vascular Department, S.Orsola Hospital IRCCS, Bologna University, Bologna, Italy
| | - Alessandra Manes
- Cardiology Unit, Cardio Thoracic and Vascular Department, S.Orsola Hospital IRCCS, Bologna University, Bologna, Italy
| | - Francesco Saia
- Cardiology Unit, Cardio Thoracic and Vascular Department, S.Orsola Hospital IRCCS, Bologna University, Bologna, Italy
| | - Fabio Dardi
- Cardiology Unit, Cardio Thoracic and Vascular Department, S.Orsola Hospital IRCCS, Bologna University, Bologna, Italy
| | - Nazzareno Galiè
- Cardiology Unit, Cardio Thoracic and Vascular Department, S.Orsola Hospital IRCCS, Bologna University, Bologna, Italy
| | - Davide Pacini
- Cardiac Surgery Unit, Cardio Thoracic and Vascular Department, S.Orsola Hospital IRCCS, Bologna University, Bologna, Italy
| |
Collapse
|
11
|
Tzoumas A, Peppas S, Sagris M, Papanastasiou CA, Barakakis PA, Bakoyiannis C, Taleb A, Kokkinidis DG, Giannakoulas G. Advances in treatment of chronic thromboembolic pulmonary hypertension. Thromb Res 2022; 212:30-37. [DOI: 10.1016/j.thromres.2022.02.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 01/20/2022] [Accepted: 02/02/2022] [Indexed: 01/29/2023]
|
12
|
Surgical Management of Chronic Thromboembolic Pulmonary Hypertension. Cardiol Clin 2022; 40:89-101. [PMID: 34809920 PMCID: PMC8720361 DOI: 10.1016/j.ccl.2021.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Chronic thromboembolic pulmonary hypertension is a progressive disease, which may lead to severe right ventricular dysfunction and debilitating symptoms. Pulmonary thromboendarterectomy (PTE) provides the best opportunity for complete resolution of obstructing thromboembolic disease and functional improvement in appropriately selected patients. In this article, the authors review preoperative workup, patient selection, operative technique, postoperative care, and outcomes after PTE.
Collapse
|
13
|
Osman B, Bou Akel I, Tulimat T, Sfeir P, Borgi J. Initiating a Chronic Thromboembolic Pulmonary Hypertension and Pulmonary Endarterectomy Program Based on a Single Center Experience in Lebanon. Semin Cardiothorac Vasc Anesth 2022; 26:187-194. [DOI: 10.1177/10892532211066645] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Purpose In 2018, the American University of Beirut Medical Center established the first multidisciplinary Chronic Thromboembolic Pulmonary Hypertension and Pulmonary Endarterectomy program in Lebanon. The study describes the challenges faced in establishing the program and in improving patient referral, evaluation, and perioperative care. Methods The program establishment including the preparation phase, clinical evaluation, and team education is discussed. The implementation of the flow of patients referred to the program was established. Education regarding diagnosis and referral were provided to physicians in the community. The initial experience is described in a retrospective analysis of 4 consecutive patients who were diagnosed with CTEPH and underwent PEA. Results Four patients were diagnosed with CTEPH had PEA performed. The mean age of patients was 64 years. The average CPB and total circulatory arrest times were 244 and 23.9 minutes per side, respectively. No mortalities were encountered perio-operatively. All patients reported significant improvement in functional capacity from NYHA III and IV to a NYHA class of I with an average PASP decrease of 59.5 ± 19.7 mmHg and mPAP drop by 30.2 ± 16.3 mmHg. Conclusion The launch of the first CTEPH and PEA program in Lebanon, with a clear framework, coupled with good surgical outcomes is very encouraging. The program offers a curative solution for CTEPH patients in the region. A clear referral process and an increase in disease and treatment awareness in the community are crucial to the future success of the program, offering a definitive treatment, and avoiding delays to surgery.
Collapse
Affiliation(s)
| | | | | | | | - Jamil Borgi
- American University of Beirut, Beirut, Lebanon
| |
Collapse
|
14
|
Plácido R, Guimarães T, Jenkins D, Cortez-Dias N, Pereira SC, Campos P, Mineiro A, Lousada N, Martins SR, Moreira S, Dias AR, Resende CL, Vieira R, Pinto FJ. Chronic thromboembolic pulmonary hypertension: Initial experience of patients undergoing pulmonary thromboendarterectomy. Rev Port Cardiol 2021; 40:741-752. [PMID: 34857112 DOI: 10.1016/j.repce.2021.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 10/13/2020] [Indexed: 10/19/2022] Open
Abstract
INTRODUCTION AND OBJECTIVES Pulmonary endarterectomy (PEA) is a potentially curative procedure in patients with chronic thromboembolic pulmonary hypertension (CTEPH). This study reports the initial experience of a Portuguese PH center with patients undergoing PEA at an international surgical reference center. METHODS Prospective observational study of consecutive CTEPH patients followed at a national PH center, who underwent PEA at an international surgical reference center between October 2015 and March 2019. Clinical, functional, laboratory, imaging and hemodynamic parameters were obtained in the 12 months preceding the surgery and repeated between four and six months after PEA. RESULTS 27 consecutive patients (59% female) with a median age of 60 (49-71) years underwent PEA. During a median follow-up of 34 (21-48) months, there was an improvement in functional class in all patients, with only one cardiac death. From a hemodynamic perspective, there was a reduction in mean pulmonary artery pressure from 48 (42-59) mmHg to 26 (22-38) mmHg, an increase in cardiac output from 3.3 (2.9-4.0) L/min to 4.9 (4.2-5.5) L/min and a reduction in pulmonary vascular resistance from 12.1 (7.2-15.5) uW to 3.5 (2.6-5,2) uW. During the follow-up, 44% (n=12) of patients had no PH criteria, 44% (n=12) had residual PH and 11% (n=3) had PH recurrence. There was a reduction of N-terminal pro-B-type natriureticpeptide from 868 (212-1730) pg/mL to 171 (98-382) pg/mL. Rright ventricular systolic function parameters revealed an improvement in longitudinal systolic excursion and peak velocity of the plane of the tricuspid ring from 14 (13-14) mm and 9 (8-10) cm/s to 17 (16-18) mm and 13 (11-15) cm/s, respectively. Of the 26 patients with preoperative right ventricular dysfunction, 85% (n=22) recovered. The proportion of patients on specific vasodilator therapy decreased from 93% to 44% (p<0.001) and the proportion of those requiring oxygen therapy decreased from 52% to 26% (p=0.003). The six-minute walk test distance increased by about 25% compared to the baseline and only eight patients had significant desaturation during the test. CONCLUSION Pulmonary endarterectomy performed at an experienced high-volume center is a safe procedure with a very favorable medium-term impact on functional, hemodynamic and right ventricular function parameters in CTEPH patients with operable disease. It is possible for PH centers without PEA differentiation to refer patients safely and effectively to an international surgical center in which air transport is necessary.
Collapse
Affiliation(s)
- Rui Plácido
- Cardiology Department, Centro Hospitalar Universitário Lisboa Norte, Lisbon Academic Medical Centre and Cardiovascular Centre, University of Lisbon, Lisboa, Portugal; Faculty of Medicine, University of Lisbon, Lisboa, Portugal.
| | - Tatiana Guimarães
- Cardiology Department, Centro Hospitalar Universitário Lisboa Norte, Lisbon Academic Medical Centre and Cardiovascular Centre, University of Lisbon, Lisboa, Portugal; Faculty of Medicine, University of Lisbon, Lisboa, Portugal
| | - David Jenkins
- Department of Cardiothoracic Surgery, Royal Papworth Hospital NHS Foundation Trust, Cambridge, Inglaterra, United Kingdom
| | - Nuno Cortez-Dias
- Cardiology Department, Centro Hospitalar Universitário Lisboa Norte, Lisbon Academic Medical Centre and Cardiovascular Centre, University of Lisbon, Lisboa, Portugal; Faculty of Medicine, University of Lisbon, Lisboa, Portugal
| | - Sara Couto Pereira
- Cardiology Department, Centro Hospitalar Universitário Lisboa Norte, Lisbon Academic Medical Centre and Cardiovascular Centre, University of Lisbon, Lisboa, Portugal
| | - Paula Campos
- Radiology Department, Centro Hospitalar Universitário Lisboa Norte, Lisbon, Lisboa, Portugal
| | - Ana Mineiro
- Pulmonology Department, Centro Hospitalar Universitário Lisboa Norte, Lisboa, Portugal
| | - Nuno Lousada
- Cardiology Department, Centro Hospitalar Universitário Lisboa Norte, Lisbon Academic Medical Centre and Cardiovascular Centre, University of Lisbon, Lisboa, Portugal
| | - Susana R Martins
- Cardiology Department, Centro Hospitalar Universitário Lisboa Norte, Lisbon Academic Medical Centre and Cardiovascular Centre, University of Lisbon, Lisboa, Portugal; Faculty of Medicine, University of Lisbon, Lisboa, Portugal
| | - Susana Moreira
- Faculty of Medicine, University of Lisbon, Lisboa, Portugal; Pulmonology Department, Centro Hospitalar Universitário Lisboa Norte, Lisboa, Portugal
| | - Ana Rocha Dias
- Pulmonology Department, Centro Hospitalar Universitário Lisboa Norte, Lisboa, Portugal
| | | | - Rita Vieira
- Cardiology Department, Centro Hospitalar Universitário Lisboa Norte, Lisbon Academic Medical Centre and Cardiovascular Centre, University of Lisbon, Lisboa, Portugal
| | - Fausto J Pinto
- Cardiology Department, Centro Hospitalar Universitário Lisboa Norte, Lisbon Academic Medical Centre and Cardiovascular Centre, University of Lisbon, Lisboa, Portugal
| |
Collapse
|
15
|
Surgical results of chronic thromboembolic pulmonary endarterectomy in our recently developed program. TURK GOGUS KALP DAMAR CERRAHISI DERGISI-TURKISH JOURNAL OF THORACIC AND CARDIOVASCULAR SURGERY 2021; 29:295-303. [PMID: 34589247 PMCID: PMC8462111 DOI: 10.5606/tgkdc.dergisi.2021.21234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 05/30/2021] [Indexed: 11/21/2022]
Abstract
Background
In this case series, we aimed to present our diagnostic workup, surgical management, and results of the patients who underwent pulmonary endarterectomy.
Methods
In this case series, a total of 26 patients (8 males, 18 females; median age: 58 years; range, 34 to 67 years) who were evaluated by a multidisciplinary team and were diagnosed with chronic thromboembolic pulmonary hypertension who underwent pulmonary endarterectomy in our clinic between November 2015 and December 2019 were included. Pulmonary endarterectomy procedure was performed in all cases under cardiopulmonary bypass and total circulatory arrest. The results of the procedures were analyzed retrospectively.
Results
Perioperative complications were observed in seven patients (26.9%) and in-hospital mortality rate caused by perioperative complications was 15.38%. At one-year of postoperative follow-up, the mean systolic pulmonary artery pressure decreased from 78±22 mmHg to 41±20 mmHg, pulmonary vascular resistance decreased from 698±10 dyn·s·cm-5 to 235±10 dyn·s·cm-5, 6-min walk distance increased from 345±10 m to 460±10 m and, arterial oxygen saturation increased from 85±3.5% to 95±4%. New York Heart Association functional class improvement from Class III-IV to Class I-II was observed in most patients, and one-year mortality rate was 19.23%.
Conclusion
We suggest that patients diagnosed chronic thromboembolic pulmonary hypertension should be referred to cardiac surgery centers for pulmonary thromboendarterectomy, early before irreversible arteriopathy occurs.
Collapse
|
16
|
Plácido R, Guimarães T, Jenkins D, Cortez-Dias N, Pereira SC, Campos P, Mineiro A, Lousada N, Martins SR, Moreira S, Dias AR, Resende CL, Vieira R, Pinto FJ. Chronic thromboembolic pulmonary hypertension: initial experience of patients undergoing pulmonary thromboendarterectomy. Rev Port Cardiol 2021; 40:S0870-2551(21)00248-1. [PMID: 34474956 DOI: 10.1016/j.repc.2020.10.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 10/08/2020] [Accepted: 10/13/2020] [Indexed: 01/29/2023] Open
Abstract
INTRODUCTION AND OBJECTIVES Pulmonary endarterectomy (PEA) is a potentially curative procedure in patients with chronic thromboembolic pulmonary hypertension (CTEPH). This study reports the initial experience of a Portuguese PH center with patients undergoing PEA at an international surgical reference center. METHODS Prospective observational study of consecutive CTEPH patients followed at a national PH center, who underwent PEA at an international surgical reference center between October 2015 and March 2019. Clinical, functional, laboratory, imaging and hemodynamic parameters were obtained in the 12 months preceding the surgery and repeated between four and six months after PEA. RESULTS 27 consecutive patients (59% female) with a median age of 60 (49-71) years underwent PEA. During a median follow-up of 34 (21-48) months, there was an improvement in functional class in all patients, with only one cardiac death. From a hemodynamic perspective, there was a reduction in mean pulmonary artery pressure from 48 (42-59) mmHg to 26 (22-38) mmHg, an increase in cardiac output from 3.3 (2.9-4.0) L/min to 4.9 (4.2-5.5) L/min and a reduction in pulmonary vascular resistance from 12.1 (7.2-15.5) uW to 3.5 (2.6-5, 2) uW. During the follow-up, 44% (n=12) of patients had no PH criteria, 44% (n=12) had residual PH and 11% (n = 3) had PH recurrence. There was a reduction of N-terminal pro-B-type natriureticpeptide from 868 (212-1730) pg/mL to 171 (98-382) pg/mL. Rright ventricular systolic function parameters revealed an improvement in longitudinal systolic excursion and peak velocity of the plane of the tricuspid ring from 14 (13-14) mm and 9 (8-10) cm/s to 17 (16-18) mm and 13 (11-15) cm/s, respectively. Of the 26 patients with preoperative right ventricular dysfunction, 85% (n=22) recovered. The proportion of patients on specific vasodilator therapy decreased from 93% to 44% (p<0.001) and the proportion of those requiring oxygen therapy decreased from 52% to 26% (p=0.003). The six-minute walk test distance increased by about 25% compared to the baseline and only eight patients had significant desaturation during the test. CONCLUSION Pulmonary endarterectomy performed at an experienced high-volume center is a safe procedure with a very favorable medium-term impact on functional, hemodynamic and right ventricular function parameters in CTEPH patients with operable disease. It is possible for PH centers without PEA differentiation to refer patients safely and effectively to an international surgical center in which air transport is necessary.
Collapse
Affiliation(s)
- Rui Plácido
- Cardiology Department, Centro Hospitalar Universitário Lisboa Norte, Lisbon Academic Medical Centre and Cardiovascular Centre, University of Lisbon, Lisboa, Portugal; Faculty of Medicine, University of Lisbon, Lisboa, Portugal.
| | - Tatiana Guimarães
- Cardiology Department, Centro Hospitalar Universitário Lisboa Norte, Lisbon Academic Medical Centre and Cardiovascular Centre, University of Lisbon, Lisboa, Portugal; Faculty of Medicine, University of Lisbon, Lisboa, Portugal
| | - David Jenkins
- Department of Cardiothoracic Surgery, Royal Papworth Hospital NHS Foundation Trust, Cambridge, Inglaterra
| | - Nuno Cortez-Dias
- Cardiology Department, Centro Hospitalar Universitário Lisboa Norte, Lisbon Academic Medical Centre and Cardiovascular Centre, University of Lisbon, Lisboa, Portugal; Faculty of Medicine, University of Lisbon, Lisboa, Portugal
| | - Sara Couto Pereira
- Cardiology Department, Centro Hospitalar Universitário Lisboa Norte, Lisbon Academic Medical Centre and Cardiovascular Centre, University of Lisbon, Lisboa, Portugal
| | - Paula Campos
- Radiology Department, Centro Hospitalar Universitário Lisboa Norte, Lisbon, Lisboa, Portugal
| | - Ana Mineiro
- Pulmonology Department, Centro Hospitalar Universitário Lisboa Norte, Lisboa, Portugal
| | - Nuno Lousada
- Cardiology Department, Centro Hospitalar Universitário Lisboa Norte, Lisbon Academic Medical Centre and Cardiovascular Centre, University of Lisbon, Lisboa, Portugal
| | - Susana R Martins
- Cardiology Department, Centro Hospitalar Universitário Lisboa Norte, Lisbon Academic Medical Centre and Cardiovascular Centre, University of Lisbon, Lisboa, Portugal; Faculty of Medicine, University of Lisbon, Lisboa, Portugal
| | - Susana Moreira
- Faculty of Medicine, University of Lisbon, Lisboa, Portugal; Pulmonology Department, Centro Hospitalar Universitário Lisboa Norte, Lisboa, Portugal
| | - Ana Rocha Dias
- Pulmonology Department, Centro Hospitalar Universitário Lisboa Norte, Lisboa, Portugal
| | | | - Rita Vieira
- Cardiology Department, Centro Hospitalar Universitário Lisboa Norte, Lisbon Academic Medical Centre and Cardiovascular Centre, University of Lisbon, Lisboa, Portugal
| | - Fausto J Pinto
- Cardiology Department, Centro Hospitalar Universitário Lisboa Norte, Lisbon Academic Medical Centre and Cardiovascular Centre, University of Lisbon, Lisboa, Portugal
| |
Collapse
|
17
|
Piechura LM, Rinewalt DE, Mallidi HR. Advanced Surgical and Percutaneous Approaches to Pulmonary Vascular Disease. Clin Chest Med 2021; 42:143-154. [PMID: 33541608 DOI: 10.1016/j.ccm.2020.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Despite progress in modern medical therapy, pulmonary hypertension remains an unremitting disease. Once severe or refractory to medical therapy, advanced percutaneous and surgical interventions can palliate right ventricular overload, bridge to transplantation, and overall extend a patient's course. These approaches include atrial septostomy, Potts shunt, and extracorporeal life support. Bilateral lung transplantation is the ultimate treatment for eligible patients, although the need for suitable lungs continues to outpace availability. Measures such as ex vivo lung perfusion are ongoing to expand donor lung availability, increase rates of transplant, and decrease waitlist mortality.
Collapse
Affiliation(s)
- Laura M Piechura
- Division of Cardiac Surgery, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA; Division of Thoracic Surgery, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA
| | - Daniel E Rinewalt
- Division of Cardiac Surgery, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA
| | - Hari R Mallidi
- Division of Cardiac Surgery, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA; Division of Thoracic Surgery, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA.
| |
Collapse
|
18
|
Hobohm L, Kölmel S, Niemann C, Kümpers P, Krieg VJ, Bochenek ML, Lukasz AH, Reiss Y, Plate KH, Liebetrau C, Wiedenroth CB, Guth S, Münzel T, Hasenfuß G, Wenzel P, Mayer E, Konstantinides SV, Schäfer K, Lankeit M. Role of angiopoietin-2 in venous thrombus resolution and chronic thromboembolic disease. Eur Respir J 2021; 58:13993003.04196-2020. [PMID: 33986029 DOI: 10.1183/13993003.04196-2020] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 04/10/2021] [Indexed: 11/05/2022]
Abstract
Defective angiogenesis, incomplete thrombus revascularisation and fibrosis are considered critical pathomechanisms of chronic thromboembolic pulmonary hypertension (CTEPH) after pulmonary embolism (PE). Angiopoietin-2 (ANGPT2) has been shown to regulate angiogenesis, but its importance for thrombus resolution and remodelling is unknown.ANGPT2 plasma concentrations were measured in patients with CTEPH (n=68) and acute PE (n=84). Tissue removed during pulmonary endarterectomy (PEA) for CTEPH was analysed (immuno)histologically. A mouse model of inferior vena cava ligation was used to study the kinetics of venous thrombus resolution in wild-type mice receiving recombinant ANGPT2 via osmotic pumps, and in transgenic mice overexpressing ANGPT2 in endothelial cells.Circulating ANGPT2 levels were higher in CTEPH patients compared to patients with idiopathic pulmonary arterial hypertension and healthy controls, and decreased after PEA. Plasma ANGPT2 levels were also elevated in patients with PE and diagnosis of CTEPH during follow-up. Histological analysis of PEA specimens confirmed increased ANGPT2 expression, and low levels of phosphorylated TIE2 were observed in regions with early-organised pulmonary thrombi, myofibroblasts and fibrosis. Microarray and high-resolution microscopy analysis could localise ANGPT2 overexpression to endothelial cells, and hypoxia and TGF-β1 were identified as potential stimuli. Gain-of-function experiments in mice demonstrated that exogenous ANGPT2 administration and transgenic endothelial ANGPT2 overexpression resulted in delayed venous thrombus resolution, and thrombi were characterised by lower TIE2 phosphorylation and fewer microvessels.Our findings suggest that ANGPT2 delays venous thrombus resolution and that overexpression of ANGPT2 contributes to thrombofibrosis and may thus support the transition from PE to CTEPH.
Collapse
Affiliation(s)
- Lukas Hobohm
- Center for Thrombosis and Hemostasis (CTH), University Medical Center, Mainz, Germany.,Department of Cardiology, Cardiology I, University Medical Center, Mainz, Germany
| | - Sebastian Kölmel
- Internal Medicine & Endocrinology/Diabetes, Kantonsspital St.Gallen, Sankt Gallen, Switzerland
| | - Caroline Niemann
- Clinic of Gynaecology, St. Franziskus Hospital Münster, Münster, Germany
| | - Philipp Kümpers
- Department of Medicine D, Division of General Internal Medicine, Nephrology and Rheumatology, University Hospital Münster, Münster, Germany
| | - Valentin J Krieg
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Magdalena L Bochenek
- Center for Thrombosis and Hemostasis (CTH), University Medical Center, Mainz, Germany.,Department of Cardiology, Cardiology I, University Medical Center, Mainz, Germany.,German Cardiovascular Research Centre, partner site Rhine-Main, Germany
| | - Alexander H Lukasz
- Department of Medicine D, Division of General Internal Medicine, Nephrology and Rheumatology, University Hospital Münster, Münster, Germany
| | - Yvonne Reiss
- German Cardiovascular Research Centre, partner site Rhine-Main, Germany.,Institute of Neurology (Edinger Institute), University Hospital, Goethe University, Frankfurt, Germany
| | - Karl-Heinz Plate
- German Cardiovascular Research Centre, partner site Rhine-Main, Germany.,Institute of Neurology (Edinger Institute), University Hospital, Goethe University, Frankfurt, Germany
| | - Christoph Liebetrau
- German Cardiovascular Research Centre, partner site Rhine-Main, Germany.,Department of Cardiology, Kerckhoff Clinic, Bad Nauheim, Germany.,Department of Cardiology, Justus-Liebig University of Giessen, Giessen, Germany
| | | | - Stefan Guth
- Department of Thoracic Surgery, Kerckhoff Clinic, Bad Nauheim, Germany
| | - Thomas Münzel
- Department of Cardiology, Cardiology I, University Medical Center, Mainz, Germany.,German Cardiovascular Research Centre, partner site Rhine-Main, Germany
| | - Gerd Hasenfuß
- Clinic of Cardiology and Pneumology, Heart Center, University Medical Center Göttingen, Goettingen, Germany.,German Cardiovascular Research Centre, partner site Goettingen, Germany
| | - Philip Wenzel
- Center for Thrombosis and Hemostasis (CTH), University Medical Center, Mainz, Germany.,Department of Cardiology, Cardiology I, University Medical Center, Mainz, Germany.,German Cardiovascular Research Centre, partner site Rhine-Main, Germany
| | - Eckhard Mayer
- Department of Thoracic Surgery, Kerckhoff Clinic, Bad Nauheim, Germany
| | - Stavros V Konstantinides
- Center for Thrombosis and Hemostasis (CTH), University Medical Center, Mainz, Germany.,Department of Cardiology, Democritus University of Thrace, Alexandroupolis, Greece
| | - Katrin Schäfer
- Department of Cardiology, Cardiology I, University Medical Center, Mainz, Germany.,German Cardiovascular Research Centre, partner site Rhine-Main, Germany
| | - Mareike Lankeit
- Center for Thrombosis and Hemostasis (CTH), University Medical Center, Mainz, Germany .,Clinic of Cardiology and Pneumology, Heart Center, University Medical Center Göttingen, Goettingen, Germany.,Department of Internal Medicine and Cardiology, Campus Virchow Klinikum, Charité - University Medicine, Berlin, Germany.,German Cardiovascular Research Centre, partner site Berlin, Germany
| |
Collapse
|
19
|
Hobohm L, Keller K, Münzel T, Konstantinides SV, Lankeit M. Time trends of pulmonary endarterectomy in patients with chronic thromboembolic pulmonary hypertension. Pulm Circ 2021; 11:20458940211008069. [PMID: 33996027 PMCID: PMC8108078 DOI: 10.1177/20458940211008069] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 03/16/2021] [Indexed: 11/17/2022] Open
Abstract
Chronic thromboembolic pulmonary hypertension is considered as a rare but severe complication after acute pulmonary embolism and is potentially curable by pulmonary endarterectomy. We aimed to evaluate, over an 11-year period, time trends of in-hospital outcomes of pulmonary endarterectomy in chronic thromboembolic pulmonary hypertension patients and to investigate predictors of the in-hospital course. We analyzed data on the characteristics, comorbidities, treatments, and in-hospital outcomes for all chronic thromboembolic pulmonary hypertension patients treated with pulmonary endarterectomy in the German nationwide inpatient sample between 2006 and 2016. Overall, 1398 inpatients were included. Annual number of pulmonary endarterectomy increased from 67 in 2006 to 194 in 2016 (P < 0.001), in parallel with a significant decrease of in-hospital mortality (10.9% in 2008 to 1.5% in 2016; P < 0.001). Patients' characteristics shifted slightly toward older age and higher prevalence of chronic renal insufficiency and obesity over time, whereas duration of hospital stay decreased over time. Independent predictors of in-hospital mortality were age (OR 1.03 (95%CI: 1.01-1.05); P = 0.001), right heart failure (2.55 (1.37-4.76); P = 0.003), in-hospital complications such as ischemic stroke (6.87 (1.06-44.70); P = 0.044) and bleeding events like hemopneumothorax (24.93 (6.18-100.57); P < 0.001). Annual pulmonary endarterectomy volumes per center below 10 annual procedures were associated with higher rates of adverse in-hospital outcomes. Annual numbers of chronic thromboembolic pulmonary hypertension patients treated with pulmonary endarterectomy increased markedly in Germany between 2006 and 2016, in parallel with a decrease of in-hospital mortality. Our findings suggest that perioperative management of pulmonary endarterectomy, institutional experience, and patient selection is crucial and has improved over time.
Collapse
Affiliation(s)
- Lukas Hobohm
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz, Mainz, Germany.,Department of Cardiology, University Medical Center Mainz, Mainz, Germany
| | - Karsten Keller
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz, Mainz, Germany.,Department of Cardiology, University Medical Center Mainz, Mainz, Germany
| | - Thomas Münzel
- Department of Cardiology, University Medical Center Mainz, Mainz, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Rhine Main, Frankfurt, Germany
| | - Stavros V Konstantinides
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz, Mainz, Germany.,Department of Cardiology, Democritus University of Thrace, Alexandroupolis, Greece
| | - Mareike Lankeit
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz, Mainz, Germany.,Department of Internal Medicine and Cardiology, Campus Virchow Klinikum (CVK), Charité - University Medicine, Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
| |
Collapse
|
20
|
McInnis MC, Wang D, Donahoe L, Granton J, Thenganatt J, Tan K, Kavanagh J, de Perrot M. Importance of computed tomography in defining segmental disease in chronic thromboembolic pulmonary hypertension. ERJ Open Res 2020; 6:00461-2020. [PMID: 33313309 PMCID: PMC7720691 DOI: 10.1183/23120541.00461-2020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 10/09/2020] [Indexed: 11/05/2022] Open
Abstract
Background Radiological assessment of patients with chronic thromboembolic pulmonary hypertension (CTEPH) is critical to decide whether patients should be treated with pulmonary endarterectomy (PEA). Although computed tomography pulmonary angiography (CTPA) is increasingly used for decision making in CTEPH, the value of CTPA to predict surgical findings and outcome has never been explored. Methods We retrospectively reviewed 100 consecutive patients with high-quality CTPA undergoing PEA for CTEPH between May 2015 and December 2017. The most proximal level of disease in the pulmonary artery on CTPA was classified by two blinded radiologists as level 1 (main pulmonary artery), 2a (lobar pulmonary artery), 2b (origin of basal segmental pulmonary artery), 3 (segmental pulmonary artery) or 4 (predominantly subsegmental pulmonary artery). Results CTPA demonstrated level 1 in 20%, level 2a in 43%, level 2b in 11%, level 3 in 23% and level 4 in 3%. A majority of males presented with level 1 (55%) and level 2 (57%), and a majority of females (83%) with level 3 (p=0.01). Levels 3 and 4 were associated with longer duration of circulatory arrest (p=0.03) and higher frequency of Jamieson type III disease at surgery (p<0.0001). Requirement for targeted pulmonary hypertension therapy after PEA was 28% at 3 years in level 2b/3/4 compared with 6% in level 2a and 13% in level 1 (p=0.002). Level 2b/3/4 was an independent predictor for targeted pulmonary hypertension therapy after PEA (hazard ratio 4.23, 95% CI 1.24-14.39; p=0.02). Conclusions High-quality CTPA provides accurate evaluation of CTEPH patients. The level of disease on CTPA can help guide peri-operative planning and post-operative monitoring.
Collapse
Affiliation(s)
| | - David Wang
- Dept of Medical Imaging, University of Toronto, Toronto, ON, Canada
| | - Laura Donahoe
- Division of Thoracic Surgery, Dept of Surgery, University of Toronto, Toronto, ON, Canada
| | - John Granton
- Division of Respirology, Dept of Medicine, University of Toronto, Toronto, ON, Canada
| | - John Thenganatt
- Division of Respirology, Dept of Medicine, University of Toronto, Toronto, ON, Canada
| | - Kongteng Tan
- Dept of Medical Imaging, University of Toronto, Toronto, ON, Canada
| | - John Kavanagh
- Dept of Medical Imaging, University of Toronto, Toronto, ON, Canada
| | - Marc de Perrot
- Division of Thoracic Surgery, Dept of Surgery, University of Toronto, Toronto, ON, Canada
| |
Collapse
|
21
|
Tian Z, Jiang X, Jing ZC. How should a physician approach the pharmacological management of chronic thromboembolic pulmonary hypertension? Expert Opin Pharmacother 2020; 22:557-563. [PMID: 33016151 DOI: 10.1080/14656566.2020.1828349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
INTRODUCTION Chronic thromboembolic pulmonary hypertension (CTEPH) is characterized by the presence of organized thromboembolic material and proliferative fibrous intima occluding varying degrees of the pulmonary arteries, and is also accompanied by small vessel vasculopathy in occluded and non-occluded pulmonary vasculature. The similarity in hemodynamics and pathophysiology between CTEPH and group 1 pulmonary arterial hypertension provides the rationale for clinical use of pulmonary arterial hypertension (PAH)-specific therapy. AREAS COVERED The authors present the current knowledge concerning the updated therapeutic strategies in CTEPH, and try to illustrate the established and uncertain role of PAH-specific therapy and anticoagulation therapy. The real-world observational registries and landmark randomized controlled trials of PAH-specific drugs in CTEPH are emphasized in the manuscript. EXPERT OPINION Despite surgical and interventional therapies, which could provide effective and potential curable treatments, medical therapies are still the substantial and irreplaceable option for patients with CTEPH. More and more PAH-specific drugs have demonstrated favorable efficacy and safety profiles in patients with CTEPH. Additionally, anticoagulation therapy is also a substantial medical treatment in all CTEPH patients without contradiction. However, the benefit-to-risk balance in life-long anticoagulation and whether more individualized anticoagulation strategies are needed warrants further investigation.
Collapse
Affiliation(s)
- Zhuang Tian
- Department of Cardiology, Key Laboratory of Pulmonary Vascular Medicine, Peking Union Medical College Hospital, Chinese Academy Medical Sciences, Beijing, China
| | - Xin Jiang
- Department of Cardiology, Key Laboratory of Pulmonary Vascular Medicine, Peking Union Medical College Hospital, Chinese Academy Medical Sciences, Beijing, China
| | - Zhi-Cheng Jing
- Head of Cardiology Department, Key Laboratory of Pulmonary Vascular Medicine, Peking Union Medical College Hospital, Chinese Academy Medical Sciences, Beijing, China
| |
Collapse
|
22
|
Havranek S, Fingrova Z, Ambroz D, Jansa P, Kuchar J, Dusik M, Lindner J, Kunstyr J, Aschermann M, Linhart A. Atrial fibrillation and atrial tachycardia in patients with chronic thromboembolic pulmonary hypertension treated with pulmonary endarterectomy. Eur Heart J Suppl 2020; 22:F30-F37. [PMID: 32694951 PMCID: PMC7361671 DOI: 10.1093/eurheartj/suaa096] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Atrial fibrillation (AF) and atrial tachycardia (AT) are frequently observed in patients with chronic thromboembolic pulmonary hypertension (CTEPH) who were treated with pulmonary endarterectomy (PEA). Their prevalence and impact on prognosis of patients are not known. We analysed the prevalence of AF/AT and the clinical outcome in 197 patients with CTEPH treated with PEA (median age 62; interquartile range 53–68 years; 62% males). The prevalence of AF/AT was 29% (57 patients). Compared to patients without arrhythmia, the subjects with AF/AT were older [60 (50–67) vs. 62 (57–70) years], manifested an increased size of the left atrium [39 (35–44) vs. 45 (40–50) mm], had a reduced 6-min walking distance [411 (321–506) vs. 340 (254–460) m], and higher pulmonary artery systolic pressure after PEA [38 (30–47) vs. 45 (38–71) mmHg], all results with P-value <0.05. During the follow-up with a median 4.2 (1.6–6.3) years, 45 (23%) patients died. In a multivariate Cox regression model only the male gender [hazard ratio (HR) 2.27, 95% confidence interval (CI) 1.15–4.50], a reduced 6-min walking distance (HR 3.67, 95% CI 1.74–7.73), and an increased New York Heart Association class (HR 8.56, 95% CI 4.17–17.60) were associated with mortality (P < 0.05). The prevalence of AF/AT in patients with CTEPH treated with PEA is high. Arrhythmias are associated with reduced functional capacity but not with mortality.
Collapse
Affiliation(s)
- Stepan Havranek
- 2nd Department of Medicine - Department of Cardiovascular Medicine, General University Hospital in Prague, 1st Faculty of Medicine, Charles University, U Nemocnice 2, Prague 128 08, Czech Republic
| | - Zdenka Fingrova
- 2nd Department of Medicine - Department of Cardiovascular Medicine, General University Hospital in Prague, 1st Faculty of Medicine, Charles University, U Nemocnice 2, Prague 128 08, Czech Republic
| | - David Ambroz
- 2nd Department of Medicine - Department of Cardiovascular Medicine, General University Hospital in Prague, 1st Faculty of Medicine, Charles University, U Nemocnice 2, Prague 128 08, Czech Republic
| | - Pavel Jansa
- 2nd Department of Medicine - Department of Cardiovascular Medicine, General University Hospital in Prague, 1st Faculty of Medicine, Charles University, U Nemocnice 2, Prague 128 08, Czech Republic
| | - Jan Kuchar
- Regional Hospital in Tabor, Kpt. Jarose 2000, Tabor 390 03, Czech Republic
| | - Milan Dusik
- 2nd Department of Medicine - Department of Cardiovascular Medicine, General University Hospital in Prague, 1st Faculty of Medicine, Charles University, U Nemocnice 2, Prague 128 08, Czech Republic
| | - Jaroslav Lindner
- 2nd Department of Surgery - Department of Cardiovascular Surgery, General Univesity Hospital in Prague, 1st Faculty of Medicine, Charles University, U Nemocnice 2, Prague 128 08, Czech Republic
| | - Jan Kunstyr
- Department of Anesthesiology, Resuscitation and Intensive Medicine, General Univesity Hospital in Prague, 1st Faculty of Medicine, Charles University, U Nemocnice 2, Prague 128 08, Czech Republic
| | - Michael Aschermann
- 2nd Department of Medicine - Department of Cardiovascular Medicine, General University Hospital in Prague, 1st Faculty of Medicine, Charles University, U Nemocnice 2, Prague 128 08, Czech Republic
| | - Ales Linhart
- 2nd Department of Medicine - Department of Cardiovascular Medicine, General University Hospital in Prague, 1st Faculty of Medicine, Charles University, U Nemocnice 2, Prague 128 08, Czech Republic
| |
Collapse
|
23
|
Gerges M, Yacoub M. Chronic thromboembolic pulmonary hypertension - still evolving. Glob Cardiol Sci Pract 2020; 2020:e202011. [PMID: 33150155 PMCID: PMC7590968 DOI: 10.21542/gcsp.2020.11] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is one of the leading causes of severe pulmonary hypertension (PH). The disease is still underdiagnosed, and the true prevalence is unknown. CTEPH is characterized by intraluminal non-resolving thrombus organization and fibrous stenosis, or complete obliteration of pulmonary arteries, promoted by progressive remodeling of the pulmonary vasculature. One consequence of this is an increase in pulmonary vascular resistance and pressure, resulting in PH and progressive right heart failure, leading to death if left untreated. Endovascular disobliteration by pulmonary endarterectomy (PEA) is the preferred treatment for CTEPH patients. PEA surgery is the only technique that can potentially cure CTEPH disease, especially in patients with fresh or organized thrombi of the proximal branches of pulmonary arteries. However, not all patients are eligible for PEA surgery. Recent research has provided evidence suggesting balloon pulmonary angioplasty (BPA) and targeted medical therapy as additional promising available treatments options for inoperable CTEPH and recurrent/persistent PH after PEA surgery. Studies on BPA have shown it to improve pulmonary hemodynamics, symptoms, exercise capacity and RV function in inoperable CTEPH. Subsequently, BPA has developed into an essential component of the modern era of CTEPH treatment. Large randomized controlled trials have demonstrated varying significant improvements with targeted medical therapy in technically inoperable CTEPH patients. Thus, treatment of CTEPH requires a comprehensive multidisciplinary assessment, including an experienced PEA surgeon, PH specialist, BPA interventionist and CTEPH-trained radiologist at expert centers. In this comprehensive review, we address the latest developments in the fast-evolving field of CTEPH. These include advancements in imaging modalities and developments in operative and interventional techniques, which have widened the range of patients who may benefit from these procedures. The efficacy and safety of targeted medical therapies in CTEPH patients are also discussed. As the treatment options for CTEPH improve, hybrid management involving multiple treatments in the same patient may become a viable option in the near future.
Collapse
Affiliation(s)
- Mario Gerges
- Department of Internal Medicine II, Division of Cardiology, General Hospital Vienna, Medical University of Vienna, Vienna, Austria
| | | |
Collapse
|
24
|
Saito T, Kasai H, Sugiura T, Takahashi Y, Tajima H, Shigeta A, Sakao S, Tanabe N, Tatsumi K. Effects of pulmonary endarterectomy on pulmonary hemodynamics in chronic thromboembolic pulmonary hypertension, evaluated by interventricular septum curvature. Pulm Circ 2020; 10:2045894019897502. [PMID: 32206304 DOI: 10.1177/2045894019897502] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 11/25/2019] [Indexed: 10/25/2022] Open
Abstract
The interventricular septum curvature, measured in images of electrocardiogram-gated 320-slice multidetector computed tomography, is reportedly useful and less invasive than right heart catheterization, as it could provide clues regarding pulmonary arterial pressure in patients with chronic thromboembolic pulmonary hypertension. Although pulmonary endarterectomy is an efficient treatment for chronic thromboembolic pulmonary hypertension, the interventricular septum curvature in patients who have received pulmonary endarterectomy has not been evaluated. We evaluated whether the interventricular septum curvature on electrocardiogram-gated 320-slice multidetector computed tomography can predict pulmonary hemodynamics in chronic thromboembolic pulmonary hypertension even after pulmonary endarterectomy. We studied 40 patients with chronic thromboembolic pulmonary hypertension (60.5 ± 9.7 years; 30 females), who underwent pulmonary endarterectomy at Chiba University Hospital between December 2010 and July 2018. To measure the interventricular septum curvature, we prepared left ventricular short-axis tomographic images from 4D images of electrocardiogram-gated 320-slice multidetector computed tomography. We calculated the radius of interventricular septum and determined the interventricular septum curvature in both the systolic and diastolic phases. We compared the interventricular septum curvature with pulmonary hemodynamics measured by right heart catheterization before and after pulmonary endarterectomy. After pulmonary endarterectomy, the correlations of the interventricular septum curvature with mean pulmonary arterial pressure, systolic pulmonary arterial pressure, and pulmonary vascular resistance disappeared, although the interventricular septum curvature was correlated with these pulmonary hemodynamic parameters before pulmonary endarterectomy. Changes in systolic interventricular septum curvature revealed significant correlations with changes in mean pulmonary arterial pressure, systolic pulmonary arterial pressure and pulmonary vascular resistance. Diastolic interventricular septum curvature also showed significant correlations with preoperative pulmonary hemodynamics, but not with postoperative pulmonary hemodynamics. Changes in the interventricular septum curvature after pulmonary endarterectomy could estimate the efficacy of pulmonary endarterectomy, although the interventricular septum curvature after pulmonary endarterectomy showed no significant correlations with pulmonary hemodynamics. Additionally, our findings confirmed that the interventricular septum curvature before pulmonary endarterectomy could be used to evaluate the severity of disease.
Collapse
Affiliation(s)
| | - Hajime Kasai
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Toshihiko Sugiura
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Yukiko Takahashi
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Hiroshi Tajima
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Ayako Shigeta
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Seiichiro Sakao
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Nobuhiro Tanabe
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Koichiro Tatsumi
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| |
Collapse
|
25
|
Verbelen T, Cools B, Fejzic Z, Van Den Eynde R, Maleux G, Delcroix M, Meyns B. Pulmonary endarterectomy in a 12-year-old boy with multiple comorbidities. Pulm Circ 2019; 9:2045894019886249. [PMID: 32284848 PMCID: PMC7119433 DOI: 10.1177/2045894019886249] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 10/05/2019] [Indexed: 02/06/2023] Open
Abstract
A 10-year-old boy, with multiple comorbidities presented with fever, exertional dyspnea, fatigue and an obliterated brachiocephalic and inferior caval vein. Chronic thromboembolic pulmonary hypertension (CTEPH) was diagnosed. Nadroparine, antibiotics and supplemental oxygen were successfully started. Aged 12 years, supplemental oxygen was permanently needed with progressive exertional dyspnea and fatigue. In the country of residence the patient was considered as inoperable. The right ventricle was severely dilated, hypocontractile and hypertrophic. Mean pulmonary artery pressure (mPAP) was 79 mmHg and cardiac output 2.2 L/min. Pulmonary endarterectomy was uneventful. Four days later, mPAP was 33 mmHg and cardiac output 6.4 L/min. Three months later the boy restarted his education without supplemental oxygen. Six months after surgery right ventricular size and function and mPAP (14 mmHg) were normal. We demonstrated that pulmonary endarterectomy in young aged children is feasible and well-tolerated, even in the presence of severe co-morbidities. CTEPH should be an important diagnostic consideration in symptomatic children with a known hypercoaguable state, a history of thrombo-embolism or venous catheter placement, and/or a diagnosis of pulmonary hypertension. Hesitating to refer children for surgical consideration, or attempting to treat them by medication, only postpones the single potentially curable treatment and may worsen their prognosis.
Collapse
Affiliation(s)
- Tom Verbelen
- Department of Cardiac Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Bjorn Cools
- Department of Pediatric Cardiology, University Hospitals Leuven, Leuven, Belgium
| | - Zina Fejzic
- Children's Heart Center, Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Raf Van Den Eynde
- Department of Anesthesiology, University Hospitals Leuven, Leuven, Belgium
| | - Geert Maleux
- Department of Radiology, University Hospitals Leuven, Leuven, Belgium
| | - Marion Delcroix
- Department of Pneumology, University Hospitals Leuven, Leuven, Belgium
| | - Bart Meyns
- Department of Cardiac Surgery, University Hospitals Leuven, Leuven, Belgium
| |
Collapse
|
26
|
Mahmud E, Madani MM, Kim NH, Poch D, Ang L, Behnamfar O, Patel MP, Auger WR. Chronic Thromboembolic Pulmonary Hypertension: Evolving Therapeutic Approaches for Operable and Inoperable Disease. J Am Coll Cardiol 2019; 71:2468-2486. [PMID: 29793636 DOI: 10.1016/j.jacc.2018.04.009] [Citation(s) in RCA: 104] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Revised: 03/19/2018] [Accepted: 04/03/2018] [Indexed: 12/31/2022]
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH), a rare consequence of an acute pulmonary embolism, is a disease that is underdiagnosed, and surgical pulmonary thromboendarterectomy (PTE) remains the preferred therapy. However, determination of operability is multifactorial and can be challenging. There is growing excitement for the percutaneous treatment of inoperable CTEPH with data from multiple centers around the world showing the clinical feasibility of balloon pulmonary angioplasty. Riociguat remains the only approved medical therapy for CTEPH patients deemed inoperable or with persistent pulmonary hypertension after PTE. We recommend that expert multidisciplinary CTEPH teams be developed at individual institutions. Additionally, optimal and standardized techniques for balloon pulmonary angioplasty need to be developed along with dedicated interventional equipment and appropriate training standards. In the meantime, the percutaneous revascularization option is appropriate for patients deemed inoperable in combination with targeted medical therapy, or those who have failed to benefit from surgery.
Collapse
Affiliation(s)
- Ehtisham Mahmud
- Division of Cardiovascular Medicine, University of California San Diego, La Jolla, California.
| | - Michael M Madani
- Division of Cardiothoracic Surgery, University of California San Diego, La Jolla, California
| | - Nick H Kim
- Division of Pulmonary and Critical Care Medicine, Sulpizio Cardiovascular Center, University of California San Diego, La Jolla, California
| | - David Poch
- Division of Pulmonary and Critical Care Medicine, Sulpizio Cardiovascular Center, University of California San Diego, La Jolla, California
| | - Lawrence Ang
- Division of Cardiovascular Medicine, University of California San Diego, La Jolla, California
| | - Omid Behnamfar
- Division of Cardiovascular Medicine, University of California San Diego, La Jolla, California
| | - Mitul P Patel
- Division of Cardiovascular Medicine, University of California San Diego, La Jolla, California
| | - William R Auger
- Division of Pulmonary and Critical Care Medicine, Sulpizio Cardiovascular Center, University of California San Diego, La Jolla, California
| |
Collapse
|
27
|
LeVarge BL, Wright CD, Rodriguez-Lopez JM. Surgical Management of Acute and Chronic Pulmonary Embolism. Clin Chest Med 2019; 39:659-667. [PMID: 30122189 DOI: 10.1016/j.ccm.2018.04.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Surgical pulmonary embolectomy and pulmonary thromboendarterectomy are well-established treatment strategies for patients with acute and chronic pulmonary embolism, respectively. For both procedures, techniques and outcomes have evolved considerably over the past decades. Patients with massive and submassive acute pulmonary embolism are at risk for rapid decline owing to right ventricular failure and shock. When thrombus is proximal, embolectomy can rapidly restore cardiac function. Chronic thromboembolic pulmonary hypertension is a more complex disease that requires skilled, careful dissection of the arterial wall, including vascular intima. When successful, surgery leads to clinical cure of the associated pulmonary hypertension, with excellent long-term outcomes.
Collapse
Affiliation(s)
- Barbara L LeVarge
- Division of Pulmonary Diseases and Critical Care Medicine, Department of Medicine, University of North Carolina, 130 Mason Farm Road CB 7020, Chapel Hill, NC 27599, USA.
| | - Cameron D Wright
- Division of Thoracic Surgery, Department of Surgery, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114, USA
| | - Josanna M Rodriguez-Lopez
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114, USA
| |
Collapse
|
28
|
Kratzert WB, Boyd EK, Saggar R, Channick R. Critical Care of Patients After Pulmonary Thromboendarterectomy. J Cardiothorac Vasc Anesth 2019; 33:3110-3126. [PMID: 30948200 DOI: 10.1053/j.jvca.2019.03.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 02/19/2019] [Accepted: 03/01/2019] [Indexed: 12/16/2022]
Abstract
Pulmonary thromboendarterectomy (PTE) remains the only curative surgery for patients with chronic thromboembolic pulmonary hypertension (CTEPH). Postoperative intensive care unit care challenges providers with unique disease physiology, operative sequelae, and the potential for detrimental complications. Central concerns in patients with CTEPH immediately after PTE relate to neurologic, pulmonary, hemodynamic, and hematologic aspects. Institutional experience in critical care for the CTEPH population, a multidisciplinary team approach, patient risk assessment, and integration of current concepts in critical care determine outcomes after PTE surgery. In this review, the authors will focus on specific aspects unique to this population, with integration of current available evidence and future directions. The goal of this review is to provide the cardiac anesthesiologist and intensivist with a comprehensive understanding of postoperative physiology, potential complications, and contemporary intensive care unit management immediately after pulmonary endarterectomy.
Collapse
Affiliation(s)
- Wolf B Kratzert
- Department of Anesthesiology and Perioperative Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA.
| | - Eva K Boyd
- Department of Anesthesiology and Perioperative Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Rajan Saggar
- Department of Internal Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Richard Channick
- Department of Internal Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA
| |
Collapse
|
29
|
Ng O, Giménez-Milà M, Jenkins DP, Vuylsteke A. Perioperative Management of Pulmonary Endarterectomy-Perspective from the UK National Health Service. J Cardiothorac Vasc Anesth 2018; 33:3101-3109. [PMID: 30686656 DOI: 10.1053/j.jvca.2018.11.033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Oriana Ng
- Division of Anaesthesiology, Singapore General Hospital, Singapore
| | - Marc Giménez-Milà
- Department of Anesthesia and Intensive Care, Hospital Universitari Bellvitge, Barcelona, Spain; Biomedical Research Institute of Bellvitge, Barcelona, Spain
| | - David P Jenkins
- Department of Cardiothoracic Surgery, Royal Papworth Hospital NHS Foundation Trust, Cambridge, United Kingdom
| | - Alain Vuylsteke
- Department of Anaesthesia and Intensive Care, Royal Papworth Hospital NHS Foundation Trust, Cambridge, United Kingdom.
| |
Collapse
|
30
|
Guth S, Wiedenroth CB, Rieth A, Richter MJ, Gruenig E, Ghofrani HA, Arlt M, Liebetrau C, Prüfer D, Rolf A, Hamm CW, Mayer E. Exercise right heart catheterisation before and after pulmonary endarterectomy in patients with chronic thromboembolic disease. Eur Respir J 2018; 52:13993003.00458-2018. [DOI: 10.1183/13993003.00458-2018] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 07/23/2018] [Indexed: 02/06/2023]
Abstract
Symptomatic patients with chronic thromboembolic disease (CTED) without pulmonary hypertension often show an excessive increase in mean pulmonary arterial pressure (MPAP) during exercise.We report on the impact of pulmonary endarterectomy (PEA) on pulmonary haemodynamics in a prospective series of 32 consecutive CTED patients who underwent PEA. All patients had a comprehensive diagnostic work-up including right heart catheterisation at baseline and 12 months after PEA. Furthermore, in 12 patients exercise right heart catheterisation was performed before and after PEA.After PEA, MPAP was lower at rest (20±3 versus 17±3 mmHg; p=0.008) and during maximal exercise (39±8 versus 31±6 mmHg; p=0.016). The mean total pulmonary resistance (TPR) decreased from 3.6±0.8 Wood Units (WU) pre-operatively to 2.7±0.7 WU 1 year after PEA (p=0.004) and the mean slope of the MPAP/cardiac output (CO) relationship decreased from 3.6±1.0 to 2.3±0.8 WU (p=0.002). Peak oxygen uptake increased from 1.2±0.4 to 1.5±0.3 L·min−1 (p=0.014) and ventilatory equivalents of carbon dioxide decreased from 39±2 to 30±2 (p=0.002). There was a significant improvement in quality of life assessed by the Cambridge Pulmonary Hypertension Outcome Review questionnaire.In CTED patients, PEA resulted in haemodynamic and clinical improvements. The means of TPR and MPAP/CO slopes decreased to <3.0 WU.
Collapse
|
31
|
Abstract
Chronic thromboembolic pulmonary hypertension occurs when acute thromboemboli fail to dissolve completely. The resulting fibrotic scar tissue within the pulmonary arteries is obstructive and eventually leads to right heart failure. Medical therapy for this condition is supportive, but surgery with pulmonary artery endarterectomy is curative, and carries a low mortality at experienced centers.
Collapse
Affiliation(s)
- Stuart Jamieson
- Division of Cardiovascular and Thoracic Surgery, University of California, San Diego, California
| | - G Victor Pretorius
- Division of Cardiovascular and Thoracic Surgery, University of California, San Diego, California
| |
Collapse
|
32
|
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is an uncommon and late complication of pulmonary embolism resulting from misguided remodelling of residual pulmonary thromboembolic material and small-vessel arteriopathy. CTEPH is the only form of pulmonary hypertension (PH) potentially curable by pulmonary endarterectomy (PEA). Unfortunately, several patients have either an unacceptable risk-benefit ratio for undergoing the surgical intervention or develop persistent PH after PEA. Novel medical and endovascular therapies can be considered for them. The soluble guanylate cyclase stimulator riociguat is recommended for the treatment of patients with inoperable disease or with recurrent/persistent PH after PEA. Other drugs developed for the treatment of other forms of PH, as prostanoids, phosphodiesterase-5 inhibitors and endothelin receptor antagonists have been used in the treatment of CTEPH, with limited benefit. Balloon pulmonary angioplasty is a novel and promising technique and is progressively emerging from the pioneering phase. Highly specialized training level and complex protocols of postoperative care are mandatory to consolidate the technical success of the surgical and endovascular intervention.
Collapse
Affiliation(s)
| | - Paolo Prandoni
- Department of Cardiac Thoracic and Vascular Sciences, University of Padua, Padua, Italy
| |
Collapse
|
33
|
Pérez Guillén M. El tratamiento de elección en la hipertensión pulmonar tromboembólica crónica: la tromboendarterectomía pulmonar. CIRUGIA CARDIOVASCULAR 2018. [DOI: 10.1016/j.circv.2018.01.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
34
|
Guth S, Wiedenroth CB, Wollenschläger M, Richter MJ, Ghofrani HA, Arlt M, Mayer E. Short-term venoarterial extracorporeal membrane oxygenation for massive endobronchial hemorrhage after pulmonary endarterectomy. J Thorac Cardiovasc Surg 2018; 155:643-649. [DOI: 10.1016/j.jtcvs.2017.09.045] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 07/16/2017] [Accepted: 09/06/2017] [Indexed: 10/18/2022]
|
35
|
Iorianni C, Richter E. Anesthesia for Pulmonary Endarterectomy. Anesthesiology 2018. [DOI: 10.1007/978-3-319-74766-8_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
36
|
Sihag S, Le B, Witkin AS, Rodriguez-Lopez JM, Villavicencio MA, Vlahakes GJ, Channick RN, Wright CD. Quantifying the learning curve for pulmonary thromboendarterectomy. J Cardiothorac Surg 2017; 12:121. [PMID: 29284512 PMCID: PMC5747243 DOI: 10.1186/s13019-017-0686-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Accepted: 12/07/2017] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Pulmonary thromboendarterectomy (PTE) is an effective treatment for chronic thromboembolic pulmonary hypertension (CTEPH), but is a technically challenging operation for cardiothoracic surgeons. Starting a new program allows an opportunity to define a learning curve for PTE. METHODS A retrospective case review was performed of 134 consecutive PTEs performed from 1998 to 2016 at a single institution. Outcomes were compared using either a two-tailed t-test for continuous variables or a chi-squared test for categorical variables according to experience of the program by terciles (T). RESULTS The 30-day mortality was 3.7%. The mean length of hospital stay, length of ICU stay, and duration on a ventilator were 12.6 days, 4.6 days, and 2.0 days, respectively. The mean decrease in systolic pulmonary artery pressure (sPAP) was 41.3 mmHg. Patients with Jamieson type 2 disease had a greater change in mean sPAP than those with type 3 disease (p = 0.039). The mean cardiopulmonary bypass time was 180 min (T1-198 min, T3-159 min, p = <0.001), and the mean circulatory arrest time was 37 min (T1-44 min, T3-31 min, p < 0.001). Plotting circulatory arrest times as a running sum compared to the mean demonstrated 2 inflection points, the first at 22 cases and the second at 95 cases. CONCLUSIONS PTE is a challenging procedure to learn, and good outcomes are a result of a multi-disciplinary effort to optimize case selection, operative performance, and postoperative care. Approximately 20 cases are needed to become proficient in PTE, and nearly 100 cases are required for more efficient clearing of obstructed pulmonary arteries.
Collapse
Affiliation(s)
- Smita Sihag
- Division of Thoracic Surgery, Massachusetts General Hospital, 55 Fruit Street, Founders 7, Boston, Massachusetts, 02114, USA. .,Thoracic Surgery Service, Memorial Sloan Kettering Cancer Center, 12 75 York Avenue, C-881, New York, NY, 10065, USA.
| | - Bao Le
- Division of Thoracic Surgery, Massachusetts General Hospital, 55 Fruit Street, Founders 7, Boston, Massachusetts, 02114, USA
| | - Alison S Witkin
- Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital, 55 Fruit Street, Boston, Massachusetts, 02114, USA
| | - Josanna M Rodriguez-Lopez
- Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital, 55 Fruit Street, Boston, Massachusetts, 02114, USA
| | - Mauricio A Villavicencio
- Division of Cardiac Surgery, Massachusetts General Hospital, 55 Fruit Street, Cox 6, Boston, Massachusetts, 02114, USA
| | - Gus J Vlahakes
- Division of Cardiac Surgery, Massachusetts General Hospital, 55 Fruit Street, Cox 6, Boston, Massachusetts, 02114, USA
| | - Richard N Channick
- Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital, 55 Fruit Street, Boston, Massachusetts, 02114, USA
| | - Cameron D Wright
- Division of Thoracic Surgery, Massachusetts General Hospital, 55 Fruit Street, Founders 7, Boston, Massachusetts, 02114, USA
| |
Collapse
|
37
|
Bochenek M, Rosinus N, Lankeit M, Hobohm L, Bremmer F, Schütz E, Klok F, Horke S, Wiedenroth C, Münzel T, Lang I, Mayer E, Konstantinides S, Schäfer K. From thrombosis to fibrosis in chronic thromboembolic pulmonary hypertension. Thromb Haemost 2017; 117:769-783. [DOI: 10.1160/th16-10-0790] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 12/29/2016] [Indexed: 01/31/2023]
Abstract
SummaryThe pathomechanisms underlying the development of thrombofibrotic pulmonary artery occlusions in Chronic Thromboembolic Pulmonary Hypertension (CTEPH) are largely unknown. The aim of this study was to allocate distinct cellular processes playing a role in thrombus resolution, such as inflammation, hypoxia, proliferation, apoptosis and angiogenesis, to different stages of thrombofibrotic remodelling. A total of 182 pulmonary endarterectomy (PEA) specimens were collected from 31 CTEPH patients. To facilitate co-localisation, Tissue MicroArrays were prepared and processed for (immuno)-histochemistry and confocal fluorescence microscopy. Murine venous thrombus formation and resolution was examined after inferior vena cava ligation. PEA tissues exhibited five morphologically distinct regions predominantly consisting of either fibrin-, erythrocyte- or extracellular matrix-rich thrombus, myofibroblasts, vessels or fibrotic tissue, and were found to resemble chronological stages of thrombus resolution in mice. Cellularity was highest in vessel-rich regions, and numerous cells were strongly positive for HIF1α or HIF2α as well as markers of activated VEGF signalling, including endothelial nitric oxide synthase. On the other hand, negative regulators of angiogenic growth factor signalling and reactive oxygen species were also highly expressed. Immune cells, primarily macrophages of the M2 subtype and CD117 haematopoietic progenitors were detected and highest in vascularised regions. Our findings demonstrate the simultaneous presence of different stages of thrombus organisation and suggest that hypoxia-induced endothelial, mesenchymal and immune cell activation may contribute to thrombofibrosis in CTEPH. This systematic histological characterisation of the material obstructing pulmonary vessels in CTEPH may provide a valuable basis for further studies aimed at determining causal factors underlying this disease.Supplementary Material to this article is available online at www.thrombosis-online.com.
Collapse
|
38
|
Stanzel RD, Gehron J, Wolff M, Striegl N, Roth P, Boedeker RH, Scheibelhut C, Herrmann J, Welters I, Mayer E, Scheffler M. International survey on the perioperative management of pulmonary endarterectomy: the perfusion perspective. Perfusion 2017; 33:53-61. [DOI: 10.1177/0267659117724865] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Introduction: Pulmonary endarterectomy (PEA) is the most effective treatment available for chronic thromboembolic pulmonary hypertension (CTEPH). Patient selection, surgical technique and perioperative management have improved patient outcomes, which are traditionally linked to surgical and center experience. However, optimal perfusion care has not been well defined. The goal of the international survey was to better characterize the contemporary perfusion management of PEA and highlight similarities and controversies. Method: The combined caseload of 15 participating centers was 5,066 cases. Topics queried included materials and types of cardiopulmonary bypass (CPB) equipment, choice of prime, fluid management, deep hypothermia strategy, temperature management, treatment of acid-base abnormalities and intraoperative hematocrit as well as anticoagulation management for heparin-induced thrombocytopenia. Conclusion: Our assessment could provide a base for further advancement and may help design future studies to elucidate the impact of perfusion in this challenging field.
Collapse
Affiliation(s)
- Roger D.P. Stanzel
- Perfusion Services, Nova Scotia Health Authority, Halifax, Nova Scotia, Canada
| | - Johannes Gehron
- Cardiovascular Surgery, Dept. of Perfusion, University Hospital Giessen and Marburg, Giessen, Germany
- Department of Surgery, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Matthias Wolff
- Anesthesiology, Intensive Care, Pain Therapy, University Hospital Giessen and Marburg, Giessen, Germany
| | | | - Peter Roth
- Department of Cardiovascular Surgery, University Hospital Giessen and Marburg, Giessen, Germany
| | - Rolf-Hasso Boedeker
- Institute for Medical Informatics, Justus-Liebig-University Giessen, Giessen, Germany
| | | | | | - Ingeborg Welters
- Institute of Ageing and Chronic Disease, Royal Liverpool University Hospital, Liverpool, UK
| | - Eckhard Mayer
- Kerckhoff Heart and Lung Center, Bad Nauheim, Germany
| | - Matthias Scheffler
- Department of Anesthesia, Perioperative Medicine and Pain Therapy, Dalhousie University, QEII Health Sciences Centre, Halifax, Canada
| |
Collapse
|
39
|
Madani MM. Surgical Treatment of Chronic Thromboembolic Pulmonary Hypertension: Pulmonary Thromboendarterectomy. Methodist Debakey Cardiovasc J 2017; 12:213-218. [PMID: 28289496 DOI: 10.14797/mdcj-12-4-213] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Pulmonary thromboendarterectomy (PTE), also referred to as pulmonary endarterectomy, is the definitive treatment for chronic thromboembolic pulmonary hypertension (CTEPH). The true incidence of CTEPH is unknown and difficult to ascertain; however, most experts agree that approximately 4% to 5% of all patients who have an acute episode of pulmonary embolism (PE) will continue to develop CTEPH. Based on an incidence rate of about 0.1% for acute PE, this translates into a CTEPH incidence of approximately 10,000 to 15,000 annually in the United States alone. Furthermore, there are patients with CTEPH who have no history of prior PE or deep vein thrombosis, adding to the estimated number. Despite these facts, the disease remains significantly underdiagnosed, and currently there are only about 300 PTEs performed nationwide, the majority of which are done at the University of California, San Diego (UCSD) Health System. The technical aspects of the procedure can be somewhat challenging and require meticulous and complete dissection of the entire pulmonary vascular tree, with the patient under profound hypothermic circulatory arrest. However, the determination of true CTEPH patients and those who would benefit from surgery can also be challenging and relies heavily on the experience of the CTEPH team. In this article, we will highlight some key points about the disease and describe the surgical techniques of PTE.
Collapse
Affiliation(s)
- Michael M Madani
- University of California-San Diego Health System, La Jolla, California
| |
Collapse
|
40
|
A new CT-score as index of hemodynamic changes in patients with chronic thromboembolic pulmonary hypertension. Radiol Med 2017; 122:495-504. [PMID: 28316030 DOI: 10.1007/s11547-017-0750-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 03/06/2017] [Indexed: 10/19/2022]
Abstract
PURPOSE The aim of this study was to retrospectively assess the relationship between radiological and hemodynamic parameters in patients with chronic thromboembolic pulmonary hypertension (CTEPH). We introduced a new CT-score to evaluate hemodynamic changes, only employing CT-pulmonary angiography (CTPA). MATERIALS AND METHODS 145 patients affected by CTEPH underwent hemodynamic and CTPA evaluation. Among these 145 patients, 69 underwent pulmonary endarterectomy (PEA) and performed a CTPA evaluation even after surgery. Hemodynamic assessment considered the values of mean pulmonary artery pressure (mPAP) and pulmonary vascular resistance (PVR), obtained through right heart catheterization (RHC). Radiological evaluation included CTPA signs of pulmonary hypertension. RESULTS A highly significant statistical correlation was observed between the new CT-score and both mPAP and PVR (p < 0.000) in the whole sample and also in the subgroup who underwent PEA. In addition, mPAP and PVR showed an important association with the severity of mosaic perfusion (p < 0.000). mPAP also correlated with main pulmonary artery diameter (p < 0.01); a significant association was found in both between PVR and tricuspid regurgitation(p < 0.000) and with PVR and presence of unilateral or bilateral pulmonary thromboembolic occlusion (p < 0.05). CONCLUSION Our results confirm the diagnostic role of CTPA in evaluating patients with CTEPH and in addition open a new horizon in assessing hemodynamic changes in patients with CTEPH, only employing a CTPA, especially when RHC is contraindicated or not possible.
Collapse
|
41
|
Jenkins D, Madani M, Fadel E, D'Armini AM, Mayer E. Pulmonary endarterectomy in the management of chronic thromboembolic pulmonary hypertension. Eur Respir Rev 2017; 26:26/143/160111. [DOI: 10.1183/16000617.0111-2016] [Citation(s) in RCA: 173] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 01/23/2017] [Indexed: 12/28/2022] Open
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is a type of pulmonary hypertension, resulting from fibrotic transformation of pulmonary artery clots causing chronic obstruction in macroscopic pulmonary arteries and associated vascular remodelling in the microvasculature.Pulmonary endarterectomy (PEA) offers the best chance of symptomatic and prognostic improvement in eligible patients; in expert centres, it has excellent results. Current in-hospital mortality rates are <5% and survival is >90% at 1 year and >70% at 10 years. However, PEA, is a complex procedure and relies on a multidisciplinary CTEPH team led by an experienced surgeon to decide on an individual's operability, which is determined primarily by lesion location and the haemodynamic parameters. Therefore, treatment of patients with CTEPH depends largely on subjective judgements of eligibility for surgery by the CTEPH team.Other controversies discussed in this article include eligibility for PEA versus balloon pulmonary angioplasty, the new treatment algorithm in the European Society of Cardiology/European Respiratory Society guidelines and the definition of an “expert centre” for the management of this condition.
Collapse
|
42
|
Neto-Neves EM, Brown MB, Zaretskaia MV, Rezania S, Goodwill AG, McCarthy BP, Persohn SA, Territo PR, Kline JA. Chronic Embolic Pulmonary Hypertension Caused by Pulmonary Embolism and Vascular Endothelial Growth Factor Inhibition. THE AMERICAN JOURNAL OF PATHOLOGY 2017; 187:700-712. [PMID: 28183533 DOI: 10.1016/j.ajpath.2016.12.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 11/10/2016] [Accepted: 12/08/2016] [Indexed: 02/03/2023]
Abstract
Our understanding of the pathophysiological basis of chronic thromboembolic pulmonary hypertension (CTEPH) will be accelerated by an animal model that replicates the phenotype of human CTEPH. Sprague-Dawley rats were administered a combination of a single dose each of plastic microspheres and vascular endothelial growth factor receptor antagonist in polystyrene microspheres (PE) + tyrosine kinase inhibitor SU5416 (SU) group. Shams received volume-matched saline; PE and SU groups received only microspheres or SU5416, respectively. PE + SU rats exhibited sustained pulmonary hypertension (62 ± 13 and 53 ± 14 mmHg at 3 and 6 weeks, respectively) with reduction of the ventriculoarterial coupling in vivo coincident with a large decrement in peak rate of oxygen consumption during aerobic exercise, respectively. PE + SU produced right ventricular hypokinesis, dilation, and hypertrophy observed on echocardiography, and 40% reduction in right ventricular contractile function in isolated perfused hearts. High-resolution computed tomographic pulmonary angiography and Ki-67 immunohistochemistry revealed abundant lung neovascularization and cellular proliferation in PE that was distinctly absent in the PE + SU group. We present a novel rodent model to reproduce much of the known phenotype of CTEPH, including the pivotal pathophysiological role of impaired vascular endothelial growth factor-dependent vascular remodeling. This model may reveal a better pathophysiological understanding of how PE transitions to CTEPH in human treatments.
Collapse
Affiliation(s)
- Evandro M Neto-Neves
- Department of Emergency Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Mary B Brown
- Department of Physical Therapy, Indiana University School of Health and Rehabilitation Sciences, Indianapolis, Indiana
| | - Maria V Zaretskaia
- Department of Emergency Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Samin Rezania
- Department of Emergency Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Adam G Goodwill
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Brian P McCarthy
- Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, Indiana
| | - Scott A Persohn
- Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, Indiana
| | - Paul R Territo
- Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, Indiana
| | - Jeffrey A Kline
- Department of Emergency Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana.
| |
Collapse
|
43
|
Kasai H, Tanabe N, Koshikawa K, Hirasawa Y, Sugiura T, Sakao S, Tatsumi K. The Development of Marked Collateral Circulation due to Inferior Vena Cava Filter Occlusion in a Patient with Chronic Thromboembolic Pulmonary Hypertension Complicated with Anti-phospholipid Syndrome. Intern Med 2017; 56:931-936. [PMID: 28420842 PMCID: PMC5465410 DOI: 10.2169/internalmedicine.56.7599] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
A 30-year-old Japanese man was diagnosed with chronic thromboembolic pulmonary hypertension (CTEPH) with lupus anticoagulants (LAs) in 2003. He underwent pulmonary endarterectomy after the placement of an inferior vena cava filter (IVCF) in 2004, and treatment with warfarin was continued. In 2014, IVCF occlusion and marked collateral circulation were noted during an examination for transient dyspnea; however, his warfarin level was within the therapeutic range for 88.9% of the time from 2003 to 2014. We herein report a rare case of CTEPH and LAs with IVCF occlusion; in such cases, intense treatment may be required.
Collapse
Affiliation(s)
- Hajime Kasai
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
| | - Nobuhiro Tanabe
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
- Department of Advanced Medicine in Pulmonary Hypertension, Graduate School of Medicine, Chiba University, Japan
| | - Ken Koshikawa
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
| | - Yasutaka Hirasawa
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
| | - Toshihiko Sugiura
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
| | - Seiichiro Sakao
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
| | - Koichiro Tatsumi
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
| |
Collapse
|
44
|
Manecke GR, Wilson WC, Auger WR, Jamieson SW. Chronic Thromboembolic Pulmonary Hypertension and Pulmonary Thromboendarterectomy. Semin Cardiothorac Vasc Anesth 2016; 9:189-204. [PMID: 16151552 DOI: 10.1177/108925320500900302] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Chronic thromboembolic pulmonary hypertension results from incomplete resolution of a pulmonary embolus or from recurrent pulmonary emboli. Its incidence is underappreciated, and it is currently an undertreated phenomenon. Pulmonary thromboendarterectomy is currently the safest and most effective treatment for this condition. The surgery involves midline sternotomy, profound hypothermic circulatory arrest, and complete endarterectomy of the pulmonary vascular tree. Success depends on effective coordination of multiple medical teams, including pulmonary medicine, anesthesiology, and surgery. This review, based on the past 30 years of experience at University of California San Diego Medical Center, includes information about the clinical history, diagnostic workup, anesthesia, surgical approach, and postoperative care. Outcome data are discussed, as are avenues for future research.
Collapse
Affiliation(s)
- Gerard R Manecke
- Department of Anesthesiology, University of California San Diego, San Diego, CA, USA.
| | | | | | | |
Collapse
|
45
|
Southwood M, MacKenzie Ross RV, Kuc RE, Hagan G, Sheares KK, Jenkins DP, Goddard M, Davenport AP, Pepke-Zaba J. Endothelin ETA receptors predominate in chronic thromboembolic pulmonary hypertension. Life Sci 2016; 159:104-110. [PMID: 26874031 PMCID: PMC5000546 DOI: 10.1016/j.lfs.2016.02.036] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 01/21/2016] [Accepted: 02/09/2016] [Indexed: 12/15/2022]
Abstract
AIMS Endothelin-1 levels are raised in chronic thromboembolic pulmonary hypertension. Our aim in this study was to identify the presence of endothelin receptors in patients with CTEPH by analysing tissue removed at pulmonary endarterectomy. MAIN METHODS Pulmonary endarterectomy tissue cross-sections were analysed using autoradiography with [(125)I]-ET-1 using ligands selective for ETA or ETB to determine sub-type distribution. The precise cellular localisation of ETA and ETB receptors was determined using selective antisera to both sub-types and compared with haematoxylin and eosin, Elastic Van Gieson and smooth muscle actin labelled sections. KEY FINDINGS Two patterns of ET-1 binding were found. In sections with frequent recanalised channels, ET-1 bound to the smooth muscle cells surrounding the channels. In sections where there was less organised thrombus with no obvious re-canalisation, minimal ET-1 binding was observed. Some contractile type smooth muscle cells not associated with recanalised channels and diffusely spread throughout the PEA material were associated with ET receptor antibody binding on immunohistochemistry. There was a greater expression of the ETA receptor type in the specimens. SIGNIFICANCE The presence of ET-1 receptors in the chronic thrombus in proximal CTEPH suggests ET-1 could act not only on the distal vasculopathy in the unobstructed vessels but may also stimulate smooth muscle cell proliferation within chronic clot. The abundance of ET receptors within the tissue provides evidence that the ET pathway is involved in the pathology of chronic thrombus reorganisation leading to CTEPH providing a rationale for the repurposing of ET receptor antagonists in the treatment of this condition.
Collapse
Affiliation(s)
- Mark Southwood
- Papworth Hospital, Cambridge, UK,; Experimental Medicine and Therapeutics, University of Cambridge, Cambridge, UK
| | | | - Rhoda E Kuc
- Experimental Medicine and Therapeutics, University of Cambridge, Cambridge, UK
| | | | | | | | | | - Anthony P Davenport
- Experimental Medicine and Therapeutics, University of Cambridge, Cambridge, UK.
| | | |
Collapse
|
46
|
Pulmonary Endarterectomy. Patient Selection, Technical Challenges, and Outcomes. Ann Am Thorac Soc 2016; 13 Suppl 3:S240-7. [DOI: 10.1513/annalsats.201601-014as] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
|
47
|
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) occurs when a pulmonary embolism fails to undergo complete thrombolysis leading to vascular occlusion and pulmonary hypertension. Despite the fact that CTEPH is a potential consequence of pulmonary embolism, diagnosis requires a high degree of vigilance as many patients will not have a history of thromboembolic disease. The ventilation perfusion scan is used to evaluate for the possibility of CTEPH although right heart catheterization and pulmonary artery angiogram are needed to confirm the diagnosis. Pulmonary thromboendarterectomy is the first-line treatment for patients who are surgical candidates. Recently, riociguat has been approved for patients with nonsurgical disease or residual pulmonary hypertension despite surgical intervention. This review describes the pathophysiology, risk factors, diagnosis, and management of CTEPH.
Collapse
|
48
|
Jamieson SW. Re: Outcome after surgical treatment of chronic thromboembolic pulmonary hypertension: dealing with different patient subsets. A single-centre experience. Eur J Cardiothorac Surg 2016; 50:907-908. [PMID: 27147627 DOI: 10.1093/ejcts/ezw145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Stuart W Jamieson
- Department of Cardiovascular and Thoracic Surgery, University of California, La Jolla, CA, USA
| |
Collapse
|
49
|
Guth S, Wiedenroth CB, Kramm T, Mayer E. Pulmonary endarterectomy for the treatment of chronic thromboembolic pulmonary hypertension. Expert Rev Respir Med 2016; 10:673-84. [PMID: 27070482 DOI: 10.1080/17476348.2016.1176915] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Pulmonary endarterectomy is a curative treatment option for patients with chronic thromboembolic pulmonary hypertension (CTEPH). There is a growing body of evidence suggesting that not only patients with CTEPH but also patients with pulmonary arterial obstructions and mean pulmonary artery pressures < 25 mmHg should be offered surgery. In this review, the recent literature regarding pathophysiology, diagnostic methods, decision making by an expert CTEPH team, and surgical techniques will be summarized. Novel alternative treatment options for inoperable CTEPH patients will be discussed, i.e. targeted medical therapy and balloon pulmonary angioplasty. For the future the major task will be to define a clear selection process for the optimal treatment of the individual CTEPH patient.
Collapse
Affiliation(s)
- Stefan Guth
- a Department of Thoracic Surgery , Kerckhoff Heart and Lung Center , Bad Nauheim , Germany
| | - Christoph B Wiedenroth
- a Department of Thoracic Surgery , Kerckhoff Heart and Lung Center , Bad Nauheim , Germany
| | - Thorsten Kramm
- a Department of Thoracic Surgery , Kerckhoff Heart and Lung Center , Bad Nauheim , Germany
| | - Eckhard Mayer
- a Department of Thoracic Surgery , Kerckhoff Heart and Lung Center , Bad Nauheim , Germany
| |
Collapse
|
50
|
Nierlich P, Hold A, Ristl R. Outcome after surgical treatment of chronic thromboembolic pulmonary hypertension: dealing with different patient subsets. A single-centre experience. Eur J Cardiothorac Surg 2016; 50:898-906. [DOI: 10.1093/ejcts/ezw099] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Accepted: 02/22/2016] [Indexed: 11/13/2022] Open
|