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Related Concept Videos

Treatment for Pulmonary Arterial Hypertension: Prostacyclin Receptor Agonists01:23

Treatment for Pulmonary Arterial Hypertension: Prostacyclin Receptor Agonists

146
Prostacyclin receptor agonists are a class of therapeutic agents integral to managing pulmonary arterial hypertension (PAH). These drugs operate by mimicking the action of prostaglandin I2, or PGI2, a naturally occurring compound in the body.
These agonists bind to the IPR receptor situated on the plasma membrane of the pulmonary artery smooth muscle cells. This binding triggers a cascade of reactions known as the GS-AC-cAMP-PKA pathway. This pathway results in the relaxation of smooth muscle...
146
Treatment for Pulmonary Arterial Hypertension: Endothelin Receptor Antagonists01:18

Treatment for Pulmonary Arterial Hypertension: Endothelin Receptor Antagonists

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Endothelins (ETs) are potent vasoactive peptides critical in the human body's various physiological and pathological processes. One of the most promising therapeutic strategies for treating pulmonary arterial hypertension (PAH) involves counteracting the effects of these endothelins using a class of drugs known as endothelin receptor antagonists.
ETs are synthesized through a complex sequence of enzymatic steps, primarily involving an enzyme referred to as endothelin-converting enzyme...
131
Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure01:16

Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure

167
Oxygen therapy has emerged as a significant tool in enhancing the quality of life for patients suffering from pulmonary arterial hypertension (PAH). While this therapy has principally been studied on patients with significant hypoxemia, this therapeutic approach helps prevent potential organ damage and can be administered in the comfort of one's home.
Oxygen therapy is vital in increasing and maintaining blood oxygen levels in PAH patients. As a result, it aids in reducing fatigue,...
167
Treatment for Pulmonary Arterial Hypertension: Receptor Tyrosine Kinase Inhibitors and Calcium Channel Blockers01:26

Treatment for Pulmonary Arterial Hypertension: Receptor Tyrosine Kinase Inhibitors and Calcium Channel Blockers

131
Receptor tyrosine kinase inhibitors (TKIs) and calcium channel blockers (CCBs) are two critical categories of drugs employed in the treatment of pulmonary artery hypertension (PAH). PAH is a disease that causes high blood pressure in the pulmonary arteries, resulting in chest pain, fatigue, and shortness of breath.
TKIs, such as imatinib (Gleevec), are particularly effective in tackling the growth and mitogenic factors that become upregulated in PAH patients. These factors contribute to the...
131
Pulmonary Hypertension: Classification and Pathogenesis01:30

Pulmonary Hypertension: Classification and Pathogenesis

147
Pulmonary hypertension (PH) is a severe health condition in which the mean pulmonary arterial pressure increases to 25 mmHg or more, even when the body is at rest. This high pressure in the blood vessels that transport blood from the heart to the lungs can cause various symptoms, including shortness of breath, can lead to right heart failure, and significantly affect the overall quality of life.
There are various classifications for PH, each relating to different underlying causes and also...
147
Treatment for Pulmonary Arterial Hypertension: Phosphodiesterase Inhibitors01:28

Treatment for Pulmonary Arterial Hypertension: Phosphodiesterase Inhibitors

127
Phosphodiesterase 5 (PDE5) inhibitors are potent enzymes that function to hydrolyze cyclic nucleotides to their corresponding 5' monophosphates. Their unique biochemical properties have been applied in treating Pulmonary Arterial Hypertension (PAH).
Among the PDE5 inhibitors, sildenafil (Revatio) stands out as a competitive and selective inhibitor. It operates by elevating cellular levels of cGMP and augmenting signaling through the cGMP-PKG pathway, promoting vasodilation. Upon oral...
127

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Related Experiment Video

Updated: May 30, 2025

Increasing Pulmonary Artery Pulsatile Flow Improves Hypoxic Pulmonary Hypertension in Piglets
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Pulmonary Vascular Interventions.

Grace Laidlaw1, Hugh McGregor1, Karim Valji1

  • 1Section of Interventional Radiology, Department of Radiology, University of Washington, Box 357233, 1959 Northeast Pacific Street, Seattle, WA 98195, USA.

Radiologic Clinics of North America
|January 25, 2025
PubMed
Summary
This summary is machine-generated.

Endovascular interventions offer a safe and effective approach for various pulmonary vascular conditions like clots and malformations. This review enhances operator understanding of these vital procedures for better patient outcomes.

Keywords:
EmbolizationEndovascularHemoptysisMalformationPulmonaryThromboembolism

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Area of Science:

  • Cardiology
  • Interventional Radiology
  • Pulmonary Medicine

Background:

  • Pulmonary vascular pathologies encompass a range of conditions requiring specialized management.
  • Endovascular techniques have emerged as a crucial treatment modality.

Purpose of the Study:

  • To review the indications, contraindications, techniques, and outcomes of endovascular management for common pulmonary vascular pathologies.
  • To enhance operator familiarity and proficiency with these interventional procedures.

Main Methods:

  • Review of current literature and established practices in endovascular treatment of pulmonary vascular diseases.
  • Analysis of case studies and procedural outcomes for various pathologies.

Main Results:

  • Endovascular intervention is demonstrated as a safe and effective treatment for acute/chronic thromboembolic disease, pulmonary arteriovenous malformations (pAVMs), hemorrhage, and foreign body retrieval.
  • Established protocols and techniques lead to favorable outcomes across diverse pulmonary vascular conditions.

Conclusions:

  • Endovascular intervention is a versatile and effective strategy for managing a spectrum of pulmonary vascular diseases.
  • Increased operator familiarity with these techniques is key to optimizing patient care and treatment success.