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          Home / Clinical areas / Cardiology / Congenital cardiopathies and pulmonary hypertension

          Pulmonary Arterial Hypertension [25 genes]

          Pulmonary hypertension is a rare disease (with an estimated prevalence between 5 and 52 cases per million) defined as an abnormal increase in pulmonary artery pressure, which can be idiopathic (with no known cause), hereditary, or associated with systemic diseases. It is a progressive disease usually associated with a poor prognosis.

          In recent years, major advances have been achieved regarding its pathophysiology and the application of genetics to the management of patients suspected of this disease, leading to a decrease in the number of cases diagnosed as idiopathic. Among hereditary forms of pulmonary artery hypertension (PAH), approximately 70% of cases are due to mutations in the BMPR2 gene, for which an autosomal dominant inheritance pattern and incomplete penetrance have been described. Some diseases with autosomal recessive inheritance are also associated with PAH, such as pulmonary veno-occlusive disease/ pulmonary capillary hemangiomatosis (PVOD/PCH), associated with biallelic mutations in the EIF2AK4 gene. Pathogenic variants associated with this disease have been recently described in other genes, which are also included in this panel.

          • Genetic study
          • Study performance: 55%

          • The ESC/ERS 2015 guidelines on diagnosis and treatment of pulmonary hypertension recommend genetic testing and counselling for adults and children with PAH (both sporadic and familial) or PVOD/PCH, as well as for relatives at risk of being carriers.
          • In some cases, an adequate diagnosis allows establishing risk stratification and/or reclassifying the disease, therefore providing the patient with a more suitable management and follow-up. For example, patients carrying pathogenic mutations in genes BMPR2 or ACVRL1 show a poorer prognosis than non-carriers.
          • Performing familial genetic screening when a causative pathogenic mutation is found in the index case allows detecting carrier relatives at risk of developing the disease and avoiding unnecessary follow-up of non-carrier relatives. Clinical variability and incomplete penetrance of this disease must be taken into account: carriers must undergo adequate clinical follow-up, even though not all of them will develop the disease.

          The yield of genetic testing for PAH by massive sequencing panels has not been fully studied. Generally, it is around 55%, while it is higher for familial PAH cases and for those associated with other disorders (HHT), where it can exceed 80%..

          Request study Informed consent
          Steps to follow
          Steps to follow

          How to order

          1. Download & fill out

          Please cover as many fields as possible in both documents

          2. Sample collection

          Three sample types: saliva, peripheral blood or genomic DNA

          3. Pack the sample

          Please pack the sample in a way to prevent leakage

          4. Send the sample & the request

          Please schedule the delivery for Mon–Thur: 8am – 5pm

          5. Result: the report

          Via: Client Site HIC / Client Site Imegen / Certified email

          Ask for information
          Solicita información de

          Pulmonary Arterial Hypertension


          • *

          Turnaround time (TAT): 5 weeks

          Ref. S-202007949

          Pulmonary Arterial Hypertension: View panel

          Includes:

          • BMPR2, the main gene related to PAH, accounting for 75% of familial PAH cases and 25% of idiopathic cases.
          • Genes related to PAH associated with other disorders, such as hereditary hemorrhagic telangiectasia (ACVRL1, ENG), alveolar capillary dysplasia with misalignment of the pulmonary veins (FOXF1), or pulmonary veno-occlusive disease/pulmonary capillary hemangiomatosis (EIF2AK4).
          • Other secondary genes that have been recently related to the disease, as well as candidate genes gathered from a systematic literature review.

          • BMPR2
          • ACVRL1
          • CAV1
          • EIF2AK4
          • ENG
          • GDF2
          • KCNK3
          • NOTCH3
          • RASA1
          • SMAD9
          • TBX4
          • BMPR1B
          • FOXF1
          • KCNA5
          • SMAD1
          • SMAD4
          • TOPBP1
          • NFUI
          • LIPT1
          • FOXRED1
          • AQP1
          • ATP13A3
          • SOX17
          • KLF2
          • EDN1

          Priority Genes : Genes where there is sufficient evidence (clinical and functional) to consider them associated with the disease; they are included in the clinical practice guidelines.
          Secondary Genes: Genes related to the disease, but with a lower level of evidence or that constitute sporadic cases.
          * Candidate Genes: Not enough evidence in humans, but potentially associated with the disease.

          Related panels
          Pulmonary Arterial Hypertension [25 genes]

          References

          • Aepc C, Society I, Uk SG, et al. 2015 ESC/ERS Guidelines for the diagnosis and treatment of pulmonary hypertension. Eur Heart J. 2015; 46:903-975. doi: 10.1183/13993003.01032-2015.
          • Frost A, Badesch D, Gibbs JSR, et al. Diagnosis of pulmonary hypertension. Eur Respir J. 2019; 53: 1801904. doi.org/10.1183/13993003.01904-2018.
          • Morrell NW, Aldred MA, Chung WK, et al. Genetics and genomics of pulmonary arterial hypertension. Eur Respir J 2019; 53: 1801899. doi. org/10.1183/13993003.01899-2018.

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