Genetic counselling in pre-capillary pulmonary hypertension

ESC CardioMed ◽  
2018 ◽  
pp. 2558-2560
Author(s):  
Barbara Girerd ◽  
David Montani ◽  
Marc Humbert

Pre-capillary pulmonary hypertension can be heritable in the context of pulmonary arterial hypertension (an autosomal dominant disease mainly due to mutations in BMPR2), and pulmonary veno-occlusive disease or pulmonary capillary haemangiomatosis (an autosomal recessive disease due to biallelic mutations in the EIF2AK4 gene). Genetic counselling can be implemented in referral centres for pulmonary hypertension as outlined in this chapter.

ESC CardioMed ◽  
2018 ◽  
pp. 2558-2560
Author(s):  
Barbara Girerd ◽  
David Montani ◽  
Marc Humbert

Pre-capillary pulmonary hypertension can be heritable in the context of pulmonary arterial hypertension (an autosomal dominant disease mainly due to mutations in BMPR2), and pulmonary veno-occlusive disease or pulmonary capillary haemangiomatosis (an autosomal recessive disease due to biallelic mutations in the EIF2AK4 gene). Genetic counselling can be implemented in referral centres for pulmonary hypertension as outlined in this chapter.


2017 ◽  
Vol 38 (05) ◽  
pp. 585-595 ◽  
Author(s):  
Joshua Chew ◽  
James Loyd ◽  
Eric Austin

Tremendous progress has been made in understanding the genetics of pulmonary arterial hypertension (PAH) since its description in the 1950s as a primary disorder of the pulmonary vasculature. Heterozygous germline mutations in the gene coding bone morphogenetic receptor type 2 (BMPR2) are detectable in the majority of cases of heritable PAH, and in approximately 20% of cases of idiopathic pulmonary arterial hypertension (IPAH). However, recent advances in gene discovery methods have facilitated the discovery of additional genes with mutations among those with and without familial PAH. Heritable PAH is an autosomal dominant disease characterized by reduced penetrance, variable expressivity, and female predominance. Biallelic germline mutations in the gene EIF2AK4 are now associated with pulmonary veno-occlusive disease and pulmonary capillary hemangiomatosis. Growing genetic knowledge enhances our capacity to pursue and provide genetic counseling, although the issue remains complex given that the majority of carriers of PAH-related mutations will never be diagnosed with the disease.


Author(s):  
Demosthenes G. Katritsis ◽  
Bernard J. Gersh ◽  
A. John Camm

Pulmonary arterial hypertension and pulmonary hypertension associated with pulmonary venous or capillary abnormalities, i.e. pulmonary veno-occlusive disease and pulmonary capillary haemangiomatosis, are discussed.


2017 ◽  
Vol 26 (145) ◽  
pp. 170037 ◽  
Author(s):  
Barbara Girerd ◽  
Jason Weatherald ◽  
David Montani ◽  
Marc Humbert

Mutations in the BMPR2 gene, and more rarely in ACVRL1, endoglin, caveolin-1, KCNK3 and TBX4 genes predispose to heritable pulmonary arterial hypertension, an autosomal dominant disease with incomplete penetrance. Bi-allelic mutations in the EIF2AK4 gene predispose to heritable pulmonary veno-occlusive disease/pulmonary capillary haemangiomatosis, an autosomal recessive disease with an unknown penetrance.In France, the national pulmonary hypertension referral centre offers genetic counselling and testing to adults and children. Predictive testing is also proposed to adult relatives at risk of carrying a predisposing mutation. In that context, we offer all asymptomatic BMPR2 mutation carriers a programme to detect pulmonary arterial hypertension at an early phase, as recommended by the 2015 European Society Society of Cardiology/European Respiratory Society pulmonary hypertension guidelines. Finally, pre-implantation genetic diagnosis has been conducted on five embryos from two couples in which the fathers were carriers of a pathogenic BMPR2 mutation.


2014 ◽  
Vol 13 (1) ◽  
pp. 21-26 ◽  
Author(s):  
Michael D. McGoon ◽  
Marc Humbert

Registries of pulmonary arterial hypertension (PAH) are important means by which to characterize the presentation and outcome of patients and to provide a basis for predicting the course of the disease. This article summarizes the published conclusions of the World Symposium of Pulmonary Hypertension task force that addressed registries and epidemiology of PAH.


2020 ◽  
Vol 4 (S1) ◽  
Author(s):  
Rosaria Barracano ◽  
Heba Nashat ◽  
Andrew Constantine ◽  
Konstantinos Dimopoulos

Abstract Background Eisenmenger syndrome is a multisystem disorder, characterised by a significant cardiac defect, severe pulmonary hypertension and long-standing cyanosis. Despite the availability of pulmonary hypertension therapies and improved supportive care in specialist centres, Eisenmenger patients are still faced with significant morbidity and mortality. Case presentation We describe the case of a 44-year-old woman with Eisenmenger syndrome secondary to a large secundum atrial septal defect. Her pulmonary vascular disease was treated with pulmonary vasodilators, but she experienced a progressive decline in exercise tolerance, increasing atrial arrhythmias, resulting in referral for transplantation. Her condition was complicated by significant recurrent haemoptysis in the context of extremely dilated pulmonary arteries and in-situ thrombosis, which prompted successful heart and lung transplantation. She made a slow recovery but remains well 3 years post-transplant. Conclusions Patients with Eisenmenger syndrome secondary to a pre-tricuspid lesion, such as an atrial septal defect have a natural history that differs to patients with post-tricuspid shunts; the disease tends to present later in life but is more aggressive, prompting early and aggressive medical intervention with pulmonary arterial hypertension therapies. This case illustrates that severe recurrent haemoptysis can be an indication for expediting transplantation in Eisenmenger syndrome patients.


Antioxidants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 779
Author(s):  
Daria S. Kostyunina ◽  
Paul McLoughlin

Pulmonary hypertension (PH) is a condition characterised by an abnormal elevation of pulmonary artery pressure caused by an increased pulmonary vascular resistance, frequently leading to right ventricular failure and reduced survival. Marked sexual dimorphism is observed in patients with pulmonary arterial hypertension, a form of pulmonary hypertension with a particularly severe clinical course. The incidence in females is 2–4 times greater than in males, although the disease is less severe in females. We review the contribution of the sex chromosomes to this sex dimorphism highlighting the impact of proteins, microRNAs and long non-coding RNAs encoded on the X and Y chromosomes. These genes are centrally involved in the cellular pathways that cause increased pulmonary vascular resistance including the production of reactive oxygen species, altered metabolism, apoptosis, inflammation, vasoconstriction and vascular remodelling. The interaction with genetic mutations on autosomal genes that cause heritable pulmonary arterial hypertension such as bone morphogenetic protein 2 (BMPR2) are examined. The mechanisms that can lead to differences in the expression of genes located on the X chromosomes between females and males are also reviewed. A better understanding of the mechanisms of sex dimorphism in this disease will contribute to the development of more effective therapies for both women and men.


2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Brooke Currie ◽  
Evan Davies ◽  
Amélie Beaudet ◽  
Larissa Stassek ◽  
Leah Kleinman

Abstract Background Chronic thromboembolic pulmonary hypertension (CTEPH) is a rare form of pulmonary hypertension caused by blood clots and scar tissue in the blood vessels of the lungs. Health-related quality of life is often significantly impaired in patients with CTEPH. However, a better understanding of how CTEPH symptoms affect patients’ lives is needed to optimally assess the impact of the disease and treatment. Objectives This qualitative study aimed to better understand the symptoms of CTEPH and how they affect patients’ lives, as well as to determine the appropriateness of the Pulmonary Arterial Hypertension – Symptoms and Impact (PAH-SYMPACT™) questionnaire for use in this patient population. Methods Adults diagnosed with CTEPH, recruited from two clinical sites in the US, participated in one-to-one qualitative telephone interviews. They described their experience of CTEPH symptoms and the impact these symptoms have on their lives. They also provided feedback on the comprehensibility and relevance of the PAH-SYMPACT™‘s instructions, items, and response options. Results Participants (N = 12) had a mean age of 62.5 years. Two thirds were female and most (83%) had undergone pulmonary endarterectomy and/or balloon pulmonary angioplasty. The most frequently endorsed symptoms were shortness of breath (endorsed by all 12 participants), fatigue (11 participants), and lightheadedness (10 participants). All participants identified shortness of breath as an “extremely important” symptom, and seven participants rated fatigue as “extremely important.” The most frequent impacts of CTEPH were on ability to walk quickly (endorsed by all 12 participants), ability to walk up inclines or stairs (11 participants), and ability to carry things (11 participants). The PAH-SYMPACT™ items were relevant to most participants and reflected their experience of CTEPH. All participants indicated that no important CTEPH symptoms were missing from the PAH-SYMPACT™. Overall, the instructions, items, and response options of the PAH-SYMPACT™ were clear and easy to understand. Conclusions The symptoms and impacts experienced by patients with CTEPH align with items included in the PAH-SYMPACT™. The PAH-SYMPACT™ appears to be fit for purpose for assessing disease status in patients with CTEPH.


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