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Updated: Jul 2, 2026

Chronic Thromboembolic Pulmonary Hypertension and Assessment of Right Ventricular Function in the Piglet
Published on: November 4, 2015
[Chronic thromboembolic pulmonary hypertension: diagnostic limitations]
Bruno Arantes Dias1, Carlos Jardim, André Hovnanian
1Grupo de Circulação Pulmonar do Serviço de Pneumologia, Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brasil.
Diagnosing chronic thromboembolic pulmonary hypertension (CTEPH) is challenging, especially when it mimics other conditions. This case highlights difficulties in identifying CTEPH for effective surgical treatment.
Area of Science:
- Cardiology
- Pulmonology
- Vascular Medicine
Background:
- Pulmonary hypertension (PH) requires accurate diagnosis for effective treatment.
- Chronic thromboembolic pulmonary hypertension (CTEPH) is the only potentially curable form of PH.
- Noninvasive diagnostic methods for CTEPH have limitations.
Observation:
- A 40-year-old female with idiopathic pulmonary arterial hypertension (IPAH) presented with pulmonary vessel thrombi.
- This condition mimicked CTEPH, presenting as an overlap syndrome.
- Distinguishing between IPAH with superimposed thrombosis and true CTEPH is clinically difficult.
Findings:
- Accurate diagnosis of CTEPH is crucial due to high surgical risks and potential for unsatisfactory outcomes.
- The case illustrates the complexity of differentiating CTEPH from other forms of PH with thrombotic complications.
- Identifying patients suitable for surgery requires careful evaluation to avoid negative repercussions.
Implications:
- Improved diagnostic strategies are needed to accurately identify CTEPH candidates for surgery.
- Misdiagnosis can lead to inappropriate surgical selection, increasing patient risk.
- Further research into noninvasive diagnostic tools for CTEPH is warranted.
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