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Alakhfash AA, Alqwaiee A, Alakhfash GA, Alhajjaj A, Almesned AA. Pulmonary hypertension associated with congenital heart disease; clinical decision scenario. Respir Med Case Rep 2020; 31:101286. [PMID: 33294357 PMCID: PMC7683341 DOI: 10.1016/j.rmcr.2020.101286] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 10/18/2020] [Accepted: 11/07/2020] [Indexed: 11/26/2022] Open
Abstract
Pulmonary arterial hypertension associated with congenital heart disease (PAH-CHD) is one type under group 1 PH. Undiagnosed or delayed diagnosis of significant CHD might lead to significant PAH and at the end might lead to Eisenmenger syndrome. We could expect the degree of PAH in patients with CHD by proper clinical assessment as well as by the basic assessment tools including the chest x-ray (CXR), ECG, and transthoracic echocardiography (TTE). We are presenting a three and half years old child with a delayed/missed diagnosis of large patent ductus arteries (PDA) who present with significant PAH. Clinical evaluation, CXR, ECG, TTE, as well as cardiac catheterization data are presented, with a review of the current guidelines regarding the management of pediatric patients with PAH-CHD.
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Key Words
- APW, Aortopulmonary window
- BPD, Bronchopulmonary dysplasia
- CHD, Congenital Heart Disease
- Congenital heart defects
- PAH, Pulmonary arterial hypertension
- PCW, pulmonary capillary wedge
- PDA closure
- PDA, Patent ductus arteriosus
- PH, Pulmonary hypertension
- PVR, pulmonary vascular resistance
- Pulmonary arterial hypertension
- Qp, pulmonary blood flow
- Qs, Systemic blood flow
- SVR, Systemic vascular resistance
- VSD, Ventricular septal defect
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Affiliation(s)
- Ali A Alakhfash
- Consultant Pediatric Cardiologist, Prince Sultan Cardiac Center-Qassim, Saudi Arabia
| | - Abdullah Alqwaiee
- Consultant Pediatric Cardiologist, Prince Sultan Cardiac Center-Qassim, Saudi Arabia
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Liao S, Li D, Hui Z, McLachlan CS, Zhang Y. Chronic dosing with metformin plus bosentan decreases in vitro pulmonary artery contraction from isolated arteries in adults with pulmonary hypertension. J Cardiovasc Thorac Res 2019; 11:189-195. [PMID: 31579458 PMCID: PMC6759611 DOI: 10.15171/jcvtr.2019.32] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 07/01/2019] [Indexed: 01/27/2023] Open
Abstract
Introduction: Pulmonary arterial hypertension (PAH) specific drug therapy using bosentan has significantly improved quality of life and survival, although PAH is still an incurable disease. Recent studies suggest metformin may have additional treatment benefits in PAH. We therefore investigated in vitro pulmonary artery reactivity after combination therapy of bosentan and metformin in PAH patients as compared with bosentan monotherapy in a prospective, randomized study.
Methods: Adult patients with PAH associated with congenital heart defects (PAH-CHD) were randomised to receive bosentan (initially at 62.5 mg twice daily for 4 weeks and then 125 mg twice daily) for 3 months with or without the combination treatment of metformin (500 mg twice daily). Vessel reactivity of isolated pulmonary arteries was examined using a wire myograph.
Results: Phenylephrine (PE)-induced contractions of arteries in patients received combination therapy were significantly attenuated at concentrations of 3 × 10-7 M, 10-6 M and 3 × 10-6 M, compared to those received bosentan monotherapy. After denudation, PE-induced contractions at concentrations of 3 × 10-6 M and 10-5 M were significantly decreased in the combination therapy group. AMP-activated protein kinase (AMPK) inhibitor compound C abrogated the inhibitory effects of metformin on PE-induced contractility. AMPK and eNOS phosphorylation in the pulmonary arteries of patients treated with combination therapy was increased compared to monotherapy (P < 0.05).
Conclusion: Adding metformin to bosentan therapy in patients with PAH-CHD decreased in vitro pulmonary artery contraction induced by PE, which is possibly related to increased AMPK phosphorylation.
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Affiliation(s)
- Shutan Liao
- Rural Clinical School, University of New South Wales, Sydney, New South Wales, Australia.,The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Dongsheng Li
- The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Zheng Hui
- The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Craig S McLachlan
- Rural Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - Yang Zhang
- The First Affiliated Hospital of Nanchang University, Nanchang, China
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Liao S, Li D, Hui Z, McLachlan CS, Zhang Y. Metformin added to bosentan therapy in patients with pulmonary arterial hypertension associated with congenital heart defects: a pilot study. ERJ Open Res 2018; 4:00060-2018. [PMID: 30151369 PMCID: PMC6104295 DOI: 10.1183/23120541.00060-2018] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 07/05/2018] [Indexed: 01/09/2023] Open
Abstract
Pulmonary arterial hypertension (PAH) is a common complication of a congenital heart defect (CHD). Recent studies suggest metformin may be a potential drug to improve cardiac function in PAH. A pilot study was conducted to investigate the efficacy of short-term treatment with a combination regimen consisting of bosentan and metformin in PAH-CHD patients as compared with bosentan monotherapy in a prospective, randomised study. Patients with PAH-CHD were randomised to receive bosentan (initially at 62.5 mg twice daily for 4 weeks and then 125 mg twice daily) for 3 months with or without the combination treatment of metformin (500 mg twice daily). 93 patients were enrolled to bosentan monotherapy (n=48) or bosentan/metformin combination treatment (n=45). After 3 months, both treatments significantly improved World Health Organization functional class, 6-min walking distance (6MWD), N-terminal pro-brain natriuretic peptide and right heart haemodynamic parameters. The improvements in 6MWD and pulmonary vascular resistance index were significantly greater in patients treated with combination therapy than in those who received monotherapy (mean±sd 95±136 versus 48±119 m (p=0.017) and −1.8±1.2 versus −1.2±1.3 Wood units per m2 (p<0.001), respectively). Pulmonary endothelin (EDN)1 was significantly decreased after combination therapy (p=0.006). However, plasma EDN1 levels were not affected. Combination therapy with bosentan and metformin in PAH-CHD patients provides improvements in important outcomes such as exercise capacity and pulmonary haemodynamics, compared with bosentan alone. This study investigated, for the first time, the efficacy of a combination regimen consisting of bosentan and metformin in patients with pulmonary arterial hypertension associated with congenital heart defect as compared with bosentan monotherapyhttp://ow.ly/n4nJ30kT98d
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Affiliation(s)
- Shutan Liao
- Rural Clinical School, University of New South Wales, Sydney, Australia.,The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Dongsheng Li
- The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Zheng Hui
- The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Craig S McLachlan
- Rural Clinical School, University of New South Wales, Sydney, Australia
| | - Yang Zhang
- The First Affiliated Hospital of Nanchang University, Nanchang, China
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Neidenbach RC, Lummert E, Vigl M, Zachoval R, Fischereder M, Engelhardt A, Pujol C, Oberhoffer R, Nagdyman N, Ewert P, Hauser M, Kaemmerer H. Non-cardiac comorbidities in adults with inherited and congenital heart disease: report from a single center experience of more than 800 consecutive patients. Cardiovasc Diagn Ther 2018; 8:423-431. [PMID: 30214857 DOI: 10.21037/cdt.2018.03.11] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background As a result of improved surgical and therapeutical management, more than 90% of patients with congenital heart disease (CHD) reach adulthood. However, the natural course of CHD is complicated by noncardiac medical problems. Aim of the study was to evaluate noncardiac comorbidities in a contemporary cohort of adults with CHD (ACHD). Methods In a tertiary care center for ACHD, 821 consecutive patients, admitted to the outpatient clinic, were evaluated for clinically relevant noncardiac comorbidities. Results The consecutively included patients (age: range, 15-80 years; 56% female) represent all types and severity grades of acyanotic and cyanotic CHD. A considerable proportion of ACHD had significant noncardiac comorbidities, which have the potential to profoundly influence the natural course of the underlying disease. In 95.5%, relevant non-cardiac comorbidities were apparent, that could be related to 16 special medical fields as endocrinologic/metabolic disease, gastroenterology/hepatology, gynecology/obstetrics, angiology, orthopedics, neurology/psychiatry and others. Most frequently seen comorbidities were endocrine and metabolic disorders (43.97%). Conclusions Non-cardiac comorbidities are increasingly common in ACHD. The data revealed non-cardiac comorbidities as they were presented in the cohort of ACHD seen in a tertiary center. The study proves that ACHD with significant non-cardiac comorbidities need multidisciplinary care by medical organ specialists, aside the congenital cardiologist, with a deep knowledge about congenital heart defects, the special effects of the organ disease on the particular heart defect and, how the heart defect may affect the course of the particular organ disease. The study may create the basis for the development of screening programs for comorbidities in ACHD as well as a multidisciplinary concept for diagnosis and treatment of concomitant disorders or for disease prevention. Particularly disease prevention may improve quality of life as well as the further fate of the affected patients.
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Affiliation(s)
- Rhoia Clara Neidenbach
- Department of Pediatric Cardiology and Congenital Heart Disease, German Heart Center Munich, Technical University Munich, Munich, Germany
| | - Eckart Lummert
- Department of Pediatric Cardiology and Congenital Heart Disease, German Heart Center Munich, Technical University Munich, Munich, Germany
| | - Matthias Vigl
- Deutsches Institut für Ernährungsforschung (DIFE), Potsdam-Rehbrücke, Nuthetal, Germany
| | - Reinhard Zachoval
- Department of Gastroenterology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Michael Fischereder
- Department of Nephrology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Andrea Engelhardt
- Department of Pediatric Cardiology and Congenital Heart Disease, German Heart Center Munich, Technical University Munich, Munich, Germany
| | - Claudia Pujol
- Department of Pediatric Cardiology and Congenital Heart Disease, German Heart Center Munich, Technical University Munich, Munich, Germany
| | - Renate Oberhoffer
- Department of Pediatric Cardiology and Congenital Heart Disease, German Heart Center Munich, Technical University Munich, Munich, Germany.,Preventive Pediatrics, Technical University Munich, Munich, Germany
| | - Nicole Nagdyman
- Department of Pediatric Cardiology and Congenital Heart Disease, German Heart Center Munich, Technical University Munich, Munich, Germany
| | - Peter Ewert
- Department of Pediatric Cardiology and Congenital Heart Disease, German Heart Center Munich, Technical University Munich, Munich, Germany
| | - Michael Hauser
- Department of Pediatric Cardiology and Congenital Heart Disease, German Heart Center Munich, Technical University Munich, Munich, Germany
| | - Harald Kaemmerer
- Department of Pediatric Cardiology and Congenital Heart Disease, German Heart Center Munich, Technical University Munich, Munich, Germany
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