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Published on: November 18, 2018
Congenital heart disease in relation to pulmonary hypertension in paediatric practice
1Department of Congenital Heart Disease, Paul O'Gorman Building, Bristol Royal Hospital for Children, Upper Maudlin Street, Bristol BS2 8BJ, UK.
Insights
Pulmonary hypertension (PHT) in congenital heart disease has distinct causes and treatments. Early diagnosis via echocardiography and ECG is crucial for managing PHT and preventing long-term disability.
Area of Science:
- Cardiology
- Pediatrics
- Pulmonology
Background:
- Pulmonary hypertension (PHT) is a common complication of untreated congenital heart disease (CHD).
- Understanding the different pathophysiological mechanisms of PHT in CHD is essential for appropriate management.
- Dual cardiac and respiratory pathology can complicate the diagnosis and treatment of PHT in children.
Purpose of the Study:
- To review the causes, mechanisms, investigations, and therapies for PHT in congenital heart disease.
- To differentiate between PHT resulting from increased pulmonary blood flow and elevated pulmonary vascular resistance.
- To highlight the role of echocardiography and electrocardiography (ECG) in diagnosing PHT.
Main Methods:
- Review of existing literature on pulmonary hypertension in congenital heart disease.
- Discussion of diagnostic tools including echocardiography and ECG.
- Analysis of treatment strategies based on PHT etiology.
Main Results:
- PHT due to high pulmonary blood flow is treatable with surgical or catheter intervention.
- PHT due to high pulmonary vascular resistance (Eisenmenger syndrome) requires palliative treatment or transplantation.
- Early recognition and management of PHT can prevent long-term disability.
Conclusions:
- Differentiating PHT causes is critical for guiding treatment in congenital heart disease.
- Multidisciplinary collaboration between cardiac and respiratory specialists is often necessary.
- Advances in assessment and treatment offer improved outcomes for children with PHT.
Abstract:
Pulmonary hypertension (PHT) is a well recognised feature of untreated congenital heart disease. This article will review the causes, known mechanisms, appropriate investigations and current therapies for PHT. The reader will understand the difference between PHT due to high pulmonary blood flow and PHT that is due to high pulmonary vascular resistance. The former is best treated by surgical or catheter intervention, whereas for the latter (Eisenmenger syndrome) only palliation is possible with medication or transplantation. Echocardiography and electrocardiography (ECG) should be performed in any child where there is a possibility of pulmonary hypertension, especially with long standing chronic lung disease and minor left to right shunt. Often these children may have dual pathology and their investigation and management may be a complex interaction between cardiac and respiratory therapists. New treatments and new techniques of assessment are now available and this may lead to improved recognition of PHT and prevention of long term disability as a result.
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